RU47781U1 - DRUM FOR WINDING KEY WIRE - Google Patents

Abstract

The drum for winding barbed wire can be used in machines for the manufacture of spiral barbed wire fences, as well as for winding coils of long materials: wire, cables, etc.

The drum contains a drive shaft connected through articulated parallelograms with tubular generators. The drive shaft is hollow. It is mounted on a cantilever support mounted on a movable trolley. The drum is equipped with mechanisms for moving the cart, rotation of the drive shaft and the extension of the articulated parallelograms.

The mechanism for moving the trolley is made in the form of a lead screw kinematically connected with the drive shaft and with an asterisk-nut mounted on a movable trolley.

The drum is also equipped with a thrust flange, which allows compressing the coiled coil into the transport position.

The proposed design of the drum allows you to increase productivity, simplifies the process of removing wound coils of wire, allows you to make spiral barriers with different internal diameters of the spirals.

Description

The utility model relates to the field of machine tools and can be used for the manufacture of spiral barbed wire fences.

Known winding drum used in the machine for the manufacture of spirals made of reinforced barbed tape (see certificate for utility model of the Russian Federation W 27902 with priority dated 08.04.2002). The winding drum is equipped with a drive including a mobile trolley mounted on the guides and an electric motor connected to a reduction gear, the output of which is connected to the axis of the winding drum and a drum speed counter.

The disadvantage of this drum are:

- the complexity of the design of the drum;

- availability of a drum revolutions counter. Also known is a drum for winding long material (see certificate for utility model of the Russian Federation No. 35607 with a priority of 09/15/03), comprising a drive shaft connected to pipes that are interconnected with the drive shaft by means of removable and non-removable flanges and overlays pivotally connected by axes with brackets mounted on the drive shaft and the pipes, while on the side of the fixed flange on the pipes there are made pipe limiters in the form of slots in which pins fixed to the fingers are slideable flange, and from the removable flange mounted

fixing rod.

The specified technical solution (as the closest analogue) can be taken as a prototype., Despite the obvious advantages of this drum has the following disadvantages:

- it is necessary to introduce a removable flange into the structure, dismantle it after the manufacture of each coil of wire, and then install it again to wind the subsequent coil. All these operations significantly lengthen the process;

- the design does not have a diameter adjustment mechanism for winding coils with different internal diameters, which reduces the technological capabilities of the equipment and the range of products;

- the design lacks a compression mechanism for the bay in the transport position.

The objective of the proposed utility model is to eliminate the above disadvantages and create a drum for winding wire, providing a technical result, consisting in:

- simplification of the design;

- the exception of the drum revolution counter;

- the manufacture of wire coils with different internal diameters of the spirals;

- compression of the coils of wire in the transport position;

- simplifying the removal of the bay from the drum after its manufacture. This technical effect according to the proposed application for a utility model is achieved by the fact that the drum for winding barbed wire contains a drive shaft connected to

mounted on a movable trolley, the rotation mechanism of the drive shaft and the movement of the trolley, while the drive shaft is hollow, mounted on a cantilever support mounted on a movable trolley, and connected to the tubular generators articulated parallelograms kinematically connected with the parallelogram extension mechanism mounted on console support and interacting with it.

In addition, the mechanism for moving the cart is made in the form of a drive screw equipped with a drive, interacting with a sprocket-nut mounted on a movable cart and kinematically connected through a chain transmission to the drive shaft.

To compress the coiled coil into the transport position, the drum is equipped with a stop flange kinematically connected with tubular generators and rotating in roller bearings mounted on the rocker arms.

The essence of the utility model is illustrated by graphic materials, where in Fig. 1 a general view of the drum is shown, in Fig. 2, view A in Fig. 1.

The drum is made in the form of several tubular generators 1 pairwise interconnected, kinematically connected through articulated parallelograms 2 with a drive shaft 3 and a crosspiece fixed to it 4. The drive shaft 3 is hollow and rests on bearings mounted on a predominantly cylindrical support 5. mounted on a cantilever movable trolley used on rails. Tubular generators 1 are the basis for winding wire 7 and have the ability to change the inner diameter of the wound

wire coils within the specified limits and to freely remove the wire coils after winding by reducing the diameter of the winding (domet., see Fig. 1) due to plane-parallel movement of the tubular generators 1. At the ends of these generators (from the side of the coil winding) retractable stops 8 , preventing the sliding of the wire 7 from the tubular generators 1 during the winding process.

The rotation mechanism of the drive shaft 9 consists of an electric motor 10, a belt drive 11, a worm gear 12. One end of the output shaft of the gear through a gear 16 is connected to the drive hollow shaft 3. The second end of the output shaft of the gear 12 through a chain gear 13 is connected to the trolley moving mechanism consisting from an electric drive 17, a lead screw 15 and an asterisk-nut 14 mounted for rotation, for example, in a sleeve rigidly mounted on a movable trolley 6.

At the cantilever end of the support 5, a parallelogram 18 sliding mechanism is mounted, which, through a small crosspiece 19 and rollers 20, is connected to the hinged parallelograms 2 and allows you to set a predetermined throwing diameter (domet.).

To compress the wire 7 after winding it into the bay (bringing into the transport position) directly on the drum, the latter is equipped with a stop flange 21 with protrusions 22, which rotates in the roller bearings 23 installed (see figure 2) in two diametrically opposite (relative to the axis of rotation drum) rocker arms 24, mounted on the axes of the fixed support 25, while the protrusions 22 interact with the tubular generators 1.

The drum for winding wire works as follows. By rotating the handle (clockwise or counterclockwise - arrows) of the parallelogram extension mechanism 18, the small crosspiece 19 is moved along the drum axis to one side or the other, which, acting on the rollers 20, leads through the articulated parallelograms 2 to the tubular generators 1 in plane-parallel motion, while the diameter required for winding the wire 7 (ometh.) is set, the end of the wire is fixed on the drum and the stops are put forward 8. The drive shaft rotation mechanism 9 is turned on. Rotation from the electric motor 10 through the belt th transmission 11, worm gear 12, gear 16, drive shaft 3 and shaft 2 is transmitted parallelograms forming the tubular 1, wherein rotation of the projections 22 is transmitted through the thrust flange 21.

At the same time, the rotation from the worm gearbox 12 and the chain gear 13 is transmitted to the sprocket nut 14, which, for example, rotates in a bronze bushing (mounted on a movable trolley) and relative to a non-rotating spindle 15 (the spindle drive does not turn on during the winding process!), transmits the translational motion to the movable trolley 6. When the tubular generators 1 rotate and the trolley moves, the barbed wire 7 is wound on the drum at a given length (L), with a given diameter (domet.) and a step equal to the running pitch screw 15 (in this case, the pitch of the lead screw corresponds to one revolution of the drum).

After connecting adjacent turns of barbed wire at 3-6 points (if necessary), turn off the electric motor 10 and turn on the electric drive mechanism for moving the trolley 17. Due to the rotation of the screw 15 in a fixed sprocket -

nut 14, the trolley moves in the opposite direction. At this time, between the sliding stops 8 and the stop flange 21, the coils of the wire wound on the drum in the bay are compressed to the transport state, after which the electric drive of the trolley movement mechanism 17 is turned off.

After fixing the wire in the bay in the transport position, for example with the help of metal tapes, the retractable stops 8 are retracted, using the parallelogram extension mechanism 18, the throwing diameter of the tubular generators is reduced and the wound barbed wire coil is freely removed. After the cart returns to its initial state, the work cycle is repeated.

Claims (4)

1. A drum for winding barbed wire, comprising a drive shaft connected to tubular generators and mounted on a movable trolley, rotation mechanisms of the drive shaft and trolley movement, characterized in that the drive shaft is hollow and mounted on a cantilever support mounted on the movable trolley, the drive shaft is connected to the tubular generators of the articulated parallelograms kinematically connected with the parallelogram extension mechanism mounted on the cantilever support and interacting with it. 2. The drum according to claim 1, characterized in that the trolley moving mechanism is made in the form of a spindle equipped with a drive and interacting with a sprocket-nut mounted on a movable trolley and kinematically connected through a chain drive with a drive shaft. 3. The drum according to claim 1, characterized in that it is equipped with a thrust flange rotating in roller bearings mounted on diametrically opposed rocker arms mounted on the axes of the fixed support, while the thrust flange is kinematically connected with tubular generators. 4. The drum according to claim 1, characterized in that at the ends of the tubular forming on the side of the winding of the barbed wire bay mounted retractable stops.