SU1678743A1 - Mechanism for repositioning of mine winder drum - Google Patents

Abstract

The invention relates to hoisting machines, in particular, mechanisms for shifting the drums of mine hoisting machines. The goal is to increase the reliability of operation. The drum relocation mechanism contains a stationary ring gear 1 rigidly connected to the disk 2 fixed on the rear drum 3, gear 6 mounted on the main shaft 4 with the possibility of movement in the axial direction, an additional gear ring 9 spring-loaded relative to the disk with internal teeth, mounted with the possibility of radial and axial movements, while the stationary ring gear 1 is made with external teeth, and the additional gear tooth is kinematically connected to the movable gear 6 and the stationary ring gear 1. In the holes of the movable gear 6, cylinders 10 connected to the pneumatic system are installed, the pistons of which rest against the flange 12 fixed to the main shaft 4. 1 ill.

Description

j you

The invention relates to hoisting machines, in particular, to mechanisms for shifting the drums of mine hoisting machines and can be used in two-drum mine hoisting machines.

The aim of the invention is to increase reliability in operation.

The drawing shows the proposed mechanism.

The mechanism contains a stationary ring gear 1 with external teeth, rigidly connected to the disk 2 of the adjustable drum 3. The disk 2 is mounted on the main shaft 4 of the shaft hoist.

On the main shaft 4 there are splines 5, on which gear 6 is movably mounted, with external teeth, the same as crown tooth 1. and spring-loaded spring 7.

With the springs 8, an additional toothed crown 9 with internal teeth interacting with the outer teeth of the crown 1 is pressed against the end disc of the disk. The additional toothed crown 9 is installed with the possibility of radial and axial movements.

The movable gear 6 and the fixed gear ring 1 are kinematically connected with an additional gear ring 9. In the end openings of the movable gear 6, cylinders 10 are connected to a pneumatic platform (or hydraulic system), the pistons 11 which abut against the flange 12 mounted on the main shaft 4 .

On the same shaft, but on the opposite side of the movable gear 6, fixed thrust flange 13.

The mechanism works as follows.

In the initial position of the cylinders 10 released working fluid (air). Under the influence of forces in the springs 7, the movable gear moves along the splines 5 of the root shaft 4 until it stops at the end of the fixed crown 1. The outer teeth of the movable gear 6 and the fixed crown 1 are covered by the internal teeth of the additional crown 9. Thus, the disk 2 of the adjustable drum 3 is connected to the main shaft 4. Inevitably misalignment of the movable gear 6 and the fixed crown 1, predetermined by the gaps in the splines 5, in the bearing and manufacturing errors, leads to the displacement and misalignment of the working surfaces of the teeth of the movable gear 6 and a fixed crown 1 relative to each other.

However, the flood effect does not arise due to the fact that there are radial and side gaps in the engagement, and the additional crown 9 is installed with the possibility of radial and axial movements, with gaps in the bolt holes and spring-loaded, i.e. pressed against the disk 2 pliable spring 8.

This allows the additional rim 9 to shift under the action of the forces acting in the engagement, and to redistribute these

0 force evenly between teeth. The skew of the additional crown 9, necessary for leveling the loads and along the length of the teeth, is ensured by the spring 8 compliance.

5 press additional crown 9 to the end face of the disk 2.

Permutation of drums, i.e. the change in the angular position of the adjustable drum 3 relative to the root shaft 4, s

With which the second drum (not shown) of the double-drum mine hoist is fixedly connected, it is produced as follows.

With a locked (brake) transfer drum 3, compressed air (pressurized oil) is supplied to the cylinder 10.

Pushing away from the piston 11, which is pressed against the flange 12, the cylinder 11, together with the movable gear B, is shifted to the left until

0 until the outer teeth of this gear are disengaged from the teeth of the additional rim 9, which remains pressed by the springs 8 to the end face of the disk 2.

After that, rotating the main shaft 4,

5, the movable gear 6 is rotated to the desired position, in which, having released air from the cylinders 10, the force of the springs 7 will again introduce the movable gear 6 into engagement with the additional crown 9.

0 This is how the reels are rearranged.

Claims (1)

Claim Mechanism for drum re-setting of a shaft hoist, including 5 includes a stationary ring gear, rigidly connected to a disk mounted on a adjustable drum, and a gear that is spring-loaded relative to the disk with external teeth for transmitting torque 0 from the shaft of the machine, mounted for movement relative to this shaft in the axial direction, and a remote control drive in the form of pneumatic cylinders, characterized in that 5 with the aim of increasing reliability in operation, it is provided with an additional crown ring with respect to the disk, with internal teeth installed with the possibility of radial and axial movements, while the fixed gear the crown is made with external teeth, and is connected with a movable gear and a subadrimental gear with a kinematic crown gear.