SU1502096A1 - Rotation drive for tumbling barrel - Google Patents

Abstract

The invention relates to ancillary equipment for grinding materials, more specifically to mills, and can be used to rotate a mill during repair work and maintenance. The aim of the invention is to improve the reliability of the design and the level of safety of repair work. The rotary drive of the drum mill includes a frame on which the power cylinders 5 and 6 are mounted. The shoe 8 with the teeth 9 on the surface is attached to the free ends of the rods of the power cylinders 5 and 6. The tooth 9 has a configuration that corresponds to the teeth of the ring gear 3 of the body. The cylinders are hinged on the frame 4 so that the axis of one of them is parallel to the tangent to the generatrix of the ring gear 3, and the axis of the second cylinder is perpendicular to the axis of the first. The drive is provided with a stopper 10 including a shoe 11 mounted in guides. The shoe 11 is set in motion by the cylinder 14. 4 Cp. Of the art, 7 ill.

Description

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The invention relates to equipment for grinding materials, namely mills, and can be used to rotate the mill drum during repair and maintenance.

The aim of the invention is to improve the reliability of structures and the level of safety of repair work.

Figure 1 shows a drum mill with a rotational drive, a general view; on FIG. 2, section A-A in FIG., A drive in an average position; in Fig. 3, the actuator j is the general view in the initial position; Fig. 4 is the same at the end of the drum rotation (arrow n shows the direction of rotation); FIG. 5 shows a stopper shoe with a retainer, a section; FIG. 6 shows a shoe with power cylinders; Fig, 7 - view B in Fig.6,

The actuator 1 for rotating the housing 2 of the mill, equipped with a gear rim 3, includes a frame 4 on which the power cylinders 5 and 6 are mounted,

The force cylinder 5 is attached to the frame 4 by means of the hinge 7 so that its longitudinal axis in the middle position (FIG. 2) is directed parallel to the tangent to the generator of the gear crown 3. The force cylinder 6 is also attached to the frame 4 by the hinge 7, and eto the longitudinal axis is directed perpendicular to the axis of the cylinder 5; the shoe 8 with the teeth 9 on the surface is attached to the free ends of the rod of the power cylinders 5 and 6. The tooth 9 has a configuration corresponding to the tooth of the ring gear 3 drums. The drive also includes a stopper 10 containing a toothed shoe 11,

The shoe 11 is mounted in the guides 12 of the frame 4 with the possibility of radial movement relative to the ring gear 3 by means of an additional drive 13. In a preferred embodiment, the additional drive 13 is a power cylinder 14, the body of which is fixed to the frame 4, the Drive 13 can be made also in the form of an electromagnet or a lever interlocked with the shoe 8; On the guides 12 there is a lock 15, which closes the shoe 11 in the position of contact with the ring crown 3.

On frame 4, a pump 16 is installed to power the power cylinders 5, 6 and 14, as well as the control panel 17.

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The frame 4 is made with fasteners - elements designed to install and secure the device on the date of the mill.

Drive rotation works as follows.

If it is necessary to carry out repair or installation work at the mill, it is required to rotate the drum at a speed much lower than that provided by the regular drum drive. For this purpose, drive 1 is installed next to the drum and fastened with fastening elements to the mill foundation. After that, the toothed shoe 11 of the stopper Y is engaged with the gear ring 3 of the housing 2. For this, pressure is supplied to the cylinder 14 and under the action of the cylinder the shoe moves towards the gear ring 3, the tooth of the shoe 11 engages with the teeth of the ring 3, and thus drying, rigid attachment of the mill housing 2 to the foundation through the frame 4 is established. In this position, the armor collapses and the unbalance caused by the collapse tends to rotate the housing 2, but the stopper 10 opposes it, ensuring safe Works inside the mill drum, I

Simultaneously with the application of the stopper 10, the shoe 8 is brought to its initial lower position (Fig. 3). For this purpose, the cylinders 5 and 6 are turned on to retract the rod. In the starting position. the cylinder 6 is turned on the working stroke of the piston and the shoe 8 under the influence of the rod of the cylinder 6 is pressed against the gear teeth 3. The tooth 9 engages with the teeth of the rim 3, while the cylinder 5 rotates around the hinge 7, monitors the shoe 8, In this position, the shoe 8 is before the start of the turn.

When the mill is rotated, the stopper 10 is turned off. To do this, with the help of cylinder 14, the shoe 11, is engaged with the crown 3, a command is given to the working stroke of the piston of the cylinder 5, the cylinder rod 5 is extended, moving the shoe B, which with its teeth 9 presses against the tooth of the crown 3, the housing 2 rotates melbNitsy, All this time, the cylinder 6 presses on the shoe 8, pressing it to

gear rim. When the rod of cylinder 5 reaches its full length, the command to turn on the stopper 10 (Fig. A) is given, Stopper 1Q enters the design with the ring gear 3, then with the help of cylinder 6 the shoe 8 is disengaged from the crown 3, and cylinder 5 returns the shoe to at least two power cylinders, whose rods interact with a ring gear fixed on the mill body, which differs from the fact that, in order to increase the reliability of the design and the safety level of the repair, the rods of the power cylinders are articulated

travel position (fig.Z). In this way, they are interconnected by

lying. The shoe 8 is brought into engagement with the ring gear 3, and if necessary, further rotation of the drum cycle is repeated.

The latch 15 is designed to lock the stopper 10 in the position of contact with the ring gear in order to prevent the shoe 11 from exiting the crown 3 when there is a sudden pressure drop in the cylinder 14, the Fixator 15 is activated during the work in the mill body.

Claims (3)

The latch is inserted into the working position with the help of a spring (Fig. 5), and is brought out with the help of an electromagnet. Therefore, when the mill is rotated, the retainer is held in the raised position all the time by means of an electromagnet. In the event of a sudden power outage, the latch is lowered under the action of a spring and, overlapping the direction of km 12 12, closes the shoe I. Formula of the invention 1. The drive rotation of the drum mill around its longitudinal axis, containing at least two power cylinders, the rods of which interact with a ring gear mounted on the mill housing, characterized in that, in order to ensure the reliability of the design and safety level of the repair work, the rods of the power cylinders are articulated A shoe with teeth interacting with a ring gear, while the stem of one of the cylinders is radially directed toward the ring gear, and the shafts of the other cylinder are perpendicular to the first one. tl and h and u- supplied stop gear 2. The drive according to item I, about u and with the fact that he is a rum, interacting with the crown. 3. The actuator according to claim 2, about tl and h and yuzha with l that the stopper is made in the form of a shoe with teeth, mounted for movement in a radial direction relative to the ring gear, and provided with a drive A. Drive pop 3, differing from 21 and so that the stopper drive is made in the form of a power cylinder. 5. Actuator according to PP.2-4, which is based on the fact that the stopper is provided with a retainer, which closes its shoe in the position of contact with the ring gear. FI.1 fie.Z 17 FIG. five  Compiled by V.Gubarev Editor V.Petraga Tehred M.Didyk Order 4998/9 Circulation 543 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 U Fie.7 Proofreader M.Vasilyeva Subscription