SU84028A1 - Drive Device for Carding Machines - Google Patents

Description

Known individual driving devices for combing machines, equipped with a cam-type rigid coupling for turning on the drum, do not ensure smooth switching on and off of the drum, which has a large mass and requires a long run-up and stop time. The use of such devices is associated with a large loss of time for stopping the machine and does not exclude breakdowns when it is started up.

The proposed drive device for carding machines is made in the form of a friction clutch and a shoe brake, controlled from a common start or stop handle. The friction clutch is a hub rigidly mounted on the shaft of the drum, carrying the friction disk that is moved along the axis of the shaft and connected to it with the help of three fingers. The disk interacts with its one side with a spring-loaded plate, moving along the shaft axis on guide pins, located on a textual pulley, which is loosely seated on the drum shaft sleeve, and the other side - with the end surface of a textrop pulley. To turn off the friction clutch, a sleeve is used, rotated from the control handle with t and levers and moved in the direction of the axis of the drum shaft with the help of bevels on its end surface. The bevels interact with the fingers planted on the drum shaft bearing. With its free end, the sleeve acts to turn the levers on and off of the friction disk through the thrust ball bearing. For a smooth stop of the drum, a block brake is used, the spring-loaded pads of which are pressed against the rim of the drum cross with the help of an eccentric. The eccentric is turned at the same time as the friction clutch engages from the common handle. To prevent accidents, a mechanism operated by the lever of the friction clutch engaging lever was used. And the mechanism automatically locks

№ 84028

drum cover during machine operation. Such a design of the drive of the carding machine allows the machine drum to be turned on and off smoothly and quickly stopped, as well as being characterized by ease of clutch control and improved safety.

FIG. 1 is a front view of the proposed drive device; in fig. 2 is a cross-sectional view along A-A in FIG. one; in fig. 3 shows a section along G ‑ Y in FIG. 2; in fig. 4 is a view along arrow B in FIG. 3

The idle pulley / (fig. 2) of the drum drive, which is freely hanging on the drum shaft, bears on three fingers 2 a pressure disk 3. which in the working position by springs 4 presses the friction disk 5 to the working surface of the pulley /. The friction disk 5, by means of the hubs 6 and 6a, which are set on the pins of the shaft of the drum, transfers the torque to the latter. To turn off the clutch, the lever 7, turning the thrust control 8 (Fig. 1) around the drum axis, simultaneously has axial movement along the bevel B (Fig. 4) and by means of three levers 9 presses the disk 3, releasing the friction disk 5 from engaging the working surface of idle shkiva. In this position, the idler pulley rotates freely on the drum shaft with gaps between the working surfaces of the pinch, pressure plate and friction disk. Asbestos-copper discs IGj riveted to a steel steel drive are used as friction clutches //. The tension adjustment of the spring is made by means of nuts 12. The end of the coupling is closed with a streamlined K-cover. The brake drum consists of two cast-iron shoes 13 (Fig. 2) with brake tapes 14 attached to them (Fig. 1). By means of the eccentric 15, the brake pads with the lever 16 can be released until it comes into contact with the rim 17 (Fig. 2) on the spider 18 of the drum. In the working position, the spring 19 (Fig. 1) retracts the pads to a free state, freeing the drum. The locking mechanism consists of a housing 20 (Fig. 1), mounted on the cheek of the drum 2il, a lever 22 and a spring 23. With the drum lid 24 closed, the lever 22 locks with its groove pin 25 on the drum cover lever 25a.

The second end of the lever 22 is held in the closed position by a finger 26 on the coupling control arm 8. The clutch and brake control is mounted on the crown of the 27 and is carried out by the handle 28, which is connected to the pull 8 by means of the finger 29. The stop (PG) and neutral (P) position are fixed by the lock 30. On the end 8 there is a stop 31, which It does not allow the clutch to be turned by the handle 28 from the /// position to the position I, since the stop 32 prevents this and only after closing the drum lid it is possible to put the handle 28 into the position / and turn the clutch on.

Subject invention

Claims (4)

1. A drive device for carding machines, comprising a jointly controlled friction clutch and a shoe brake, is distinguished by the fact that the friction clutch is made in the form of feet firmly fixed on the shaft of the drum and carried along it with the help of three fingers a friction disk interacting with one side with a spring-loaded plate, moving along the axis of the shaft on guide pins, mounted on a textrop pulley that is freely mounted on the drum shaft sleeve, and on the other side th - with the end surface tekstropnogo pulley. 2. The form of execution of the drive device according to claim 1, characterized in that, in order to turn off the friction clutch, a sleeve is used which is rotated through the arms and levers from the control stick and is moved in the direction of the axis of the drum shaft by means of bevels its end surface interacting with the fingers fixed on the bearing of the shaft of the drum, and acting with the free end through the ball thrust bearing to turn the levers on and off the friction disk. 3. The form of the drive device according to claim 1, characterized in that, for the purpose of a smooth stop of the drum, a shoe brake is applied, the spring-loaded pads of which are pressed to the rim of the drum cross with the help of an eccentric turning simultaneously with the deactivation of the friction clutch from the common on handle and turn off the friction clutch. 4. Mechanism according to claim 1, characterized in that in order to prevent accidents, a mechanism controlled from the lever of the friction clutch activation handle is used, which automatically locks the drum cover during machine operation. / ® "- / H, /, / /. : / 4f X  / -f l il /; s & I., It. , s-j4vfvia, /, l -14: W & --- JUbtr -ri prrz: ix: r | / IWiT Iffy% YSh Pi, | l jp ; :): fSif r Л 1 i iJ1 I iVI „; 1ШЯа r: Ih: I @ = - || | - s /. i i iji bsr- -or G1NL1 4K ry u HWfczSa.Wfi 1 41M. I Ci-tK / C, -.lji A „,. xs-xi 9 2 7 g: W; -L / 1 5 1 S 5: -GA - Yal II -5 i (P1 ii r I fi -, - T, W: i i .. .-. i  v „.xis; | ::, l; LYRDAD feiV     - ajSpU / f | i ip / f 11 l.-b-i i and W ilfisBe