CN1246836A - Double-reel winch - Google Patents

Abstract

A device for winding and unwinding long linear articles on reels comprises a support (12) with drive means (25) extending an arm (10). An extension arm (10) is rotatably mounted on the support (12) for supporting a gripping arm (14) for winding or unwinding the elongated item (K) on or from the stationary drum (13). The gripping arms (14) form a curved V-shaped section with a path of movement for positioning the elongated articles (K), the path of movement being directed towards the drum (13). The movement track is defined by a feed roller mounted in a clamping arm (14). The supply roller is spherical and has a rolling resistance close to zero during winding and unwinding to eliminate twisting of the elongated article (K). The device also comprises at least one reel oscillating arm (31, 31') connected to the support (12) for taking up or taking off the reel on the support.

Description

Double wire winch

technical field

The present invention relates to a device for winding and unwinding elongated articles such as wire, wire or the like on and from a reel, comprising a support with drive means for an extending arm rotatably mounted on on said support for winding and unwinding long-line items on and off the fixed line reels.

current technology

Winding or unwinding of wires, wires and the like by means of winding devices is known per se. During winding by this known device, the wound article is wound twisted, wherein each turn of winding produces a turn of twist. Winding counterclockwise creates a clockwise twist, while winding clockwise creates a counterclockwise twist. Unwinding is usually performed in the opposite direction to winding. And when all the wound items have been unwound as described above, no twisting remains on the items, however mechanical stresses are caused on the items.

Due to the frictional resistance between the extension arm and the item, the twist is not linear along the length of the item, but rather the last part of the item to be coiled produces more twist than the previously coiled parts.

A twisted non-linearity is thus created during winding, causing mechanical stress on the long-line item, which is unacceptable in some cases. For example, when installing a wire on the stator of a motor, the wire needs to have no twist at all or nearly so, ie, the twist of the wire should be linear with respect to the length of the wire. This means that along any length of the wire there should be no or close to no twist per turn unwound from the reel.

Essentials of the invention

In order to solve the problems pointed out above, the device of the present invention has an extension arm on its side facing the article, on which a clamping arm is provided to guide the long-line article substantially relative to the outer circumference of the reel. is in the tangential direction. At least one spool swing arm is connected to the support to collect or deliver the spool on the support.

In a preferred embodiment of the device according to the invention, the clamping arm has a movement path curved in a V-shaped cross-section. Preferably, the article contact surface of the track of motion is defined by feed rollers which are spherical in shape and which provide near zero rolling resistance during winding and unwinding to eliminate twisting.

In order to make the winding layer of long-line items wound on the wire wheel uniform, the extension arm preferably has a clamping arm moving device, so that the clamping arm moves along the width direction of the line wheel as the item is wound or unwound.

A preferred embodiment of the device, preferably according to the invention, has two reel oscillating arms connected to the support, one on each side of the support. The two spool swing arms are arranged to alternately place the wound spool in the unwinding position of one spool swing arm and take up an empty spool in the unwind position of the other spool swing arm, and vice versa The same is true.

The invention also relates to an installation machine and an intermediate storage device, each comprising a winding and unwinding device of the above-mentioned type, and dedicated to supplying the cables when they are installed in the stator slots of the electric machine.

This device, ie the installation machinery and intermediate storage means is particularly suitable but not exclusive for high voltage cables when installing high voltage cables, which in generators are usually the windings of the stator, where the wires do not have the protective sheath that usually surrounds them.

The wire is preferably of the type consisting of an inner core having a set of wires, a semiconducting inner layer surrounding the core, an insulating layer surrounding the semiconducting inner layer and a semiconducting outer layer surrounding the insulating layer, preferably 20 to 200mm in diameter , while the conductor cross-sectional area is in the range of 80 to 3000mm ² .

Brief description of the drawings

A preferred embodiment of the winding device of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

Fig. 1 is the equipment schematic diagram that electric wire is installed in the stator groove of electric appliance stator, and this equipment has included winding device of the present invention;

Fig. 2 is a side view showing the principle of the winding device of the present invention;

Fig. 3 is a sectional view along line A-A of the clamping arm of Fig. 2 combined with the winding device;

Fig. 4 is the top view of the preferred embodiment of winding device of the present invention;

FIG. 5 is a front view of the winding device of FIG. 4 viewed in the direction of arrow P. FIG.

Description of the preferred embodiment

When installing the electric (cable) line K to the stator S of a generator such as a prior Swedish patent application No. 9700364-4, titled "Method and device for installing electric (cable) lines", in a belt In the embodiment with a twin-spool winch, an apparatus as shown in Figure 1 is used. The equipment includes a winding machine 2 and a twin-spool winch 3 in which the electric (cable) wire K mounted on the stator S is arranged on wire feeders A and B. In the exemplified device, the winding machine 2 is clearly constituted by the prior pending Swedish patent application No. 9700366-9 entitled "Winding device".

The principle of the double wire pulley winch of the present invention is shown in Fig. 2-5. As can be seen in Figure 2, an extension arm 10 is rotatably mounted on a shaft 11 and driven in rotation by drive means 25, 26 arranged on the support 12 of the device. The extension arm 10 rotates around the center of rotation R during winding and unwinding of long-threaded items on and from the spool 13, as indicated by the dotted and dot-dash lines 10'. The extension arm 10 supports a clamping arm 14 which is drivably mounted along the extension arm 10 as described below.

In order to provide twist-free winding and unwinding, the clamping arms 14 have a V-shaped cross-section, in which a supply roll 20 is mounted on a cage 21 as shown in FIG. 3 . The supply roller 20 is spherical and serves as a moving track for the electric wire K. As shown in FIG. The rolling resistance of the spherical rollers 20 is close to zero, meaning that twisting of the wire K is eliminated during winding and unwinding.

Because each cage 21 is installed on the spring pressure shaft 22 on the V-shaped clamping arm 14, the spherical roller 20 is automatically adjustable to wires of different diameters. In FIG. K' and K" are indicated.

As is apparent from FIG. 2 , the support 12 has a drive motor 25 which is driven by a belt or chain drive 26 to rotate the extension arm 10 about the axis 11 , while the extension arm is fixed on the support 12 . At the end of the shaft 11 facing away from the support 12 and facing outward, a connecting device F is provided for supporting the wire pulley 13 .

The extension arm 10 has a cantilevered arm 28, the inside of which (opposite the spool 13) is formed with a bolt 29 for feeding the clamping arm 14. The bolt 29 is driven by a belt 30 or chain drive connected to the fixed shaft 11 . The bolt 29 is fed along the boom 28 independently of the rotation of the extension arm 10 . The wire K is thus wound and unwound along the outer circumference of the wire pulley 13 .

Figures 4 and 5 show a preferred embodiment of the winding and unwinding device of the present invention. On the front surface of each reel 13 there is a pin-shaped intermediate connection 16, which cooperates with the connection F (Fig. 2) of the support 12, or cooperates with the intermediate connection 27, which is composed of a double reel winch. Each free end of the swingable reel swing arm 31, 31' is supported, as will be described in detail below.

Before the wound reel 13 is unwound, it is necessary to rotate the reel 180° in order to prepare the wound electric wire K for unwinding. The rotation of the spool 13 is generated by the spool swing arms 31, 31'.

The device of the present invention preferably consists of two spool swing arms 31, 31' forming a so-called double spool winch. On each side of the support 12 there is a reel swing arm. Each spool oscillating arm 31, 31' is provided with a drive 32 so that the spool oscillating arm 31, 31' is in two positions, between an outer position D' or D and an inner position C, on a horizontal plane Make a swing. One outboard position D' is for unwinding/leading out of the spool 13 with wire wound (shown on the left in FIG. shown) and is ready for insertion in medial position C. In the inner position C, the reel is connected to the support 12 and is ready for winding the cable K (cf. FIG. 2 ).

Positions D' and D are alternately left and right. For example, the reel swing arm 31' takes up the wound reel 13 from the inner position C, and brings the reel to position D', where unwinding begins. During unwinding at position D', an empty spool 13 is conveyed by the spool swing arm from position D to the inner position C, protected by support 12, where the winding of said spool begins. When the latter-mentioned reel is fully wound at position C, the former-mentioned reel (at position D) has been unwound. Then, the spool is changed again, the spool swing arm 31 selects the fully wound spool and sends it to position D for unwinding/unplugging, at about the same moment the empty spool in position D' is removed It is sent to the inner position C and arranged on the support 12 for winding again.

The winding state is as follows. During winding (when the spool 13 is attached to the support 12 as shown in FIG. 2 and is in position C on FIG. 4 ), the free end of the cable K is connected to the distal end of the spool 13. The other end of the cable K is supposed to be fixed in the slot of the stator frame (S in Fig. 1). The cable K should be wound on the spool 13 with only one layer of cable. To this end, the extension arm 10 is provided with means 29 for moving the clamping arm 14 so as to allow only one layer of cable to be wound on the spool 13 . After the winding is complete, the cable K is removed from the clamping arm 14 . The reel swing arm 31 (or 31 ') is driven by its drive unit 32 from its outer position D (or D') towards the wound reel in the inner position C. The reel swing arm is connected to the connection device 16 of the reel 13 via the connection means 27, and the connector F of the reel 13 connected to the support 12 is released. The wound reel 13 is swung to the outer position D (or D'). In this position, the free end of the cable can be unwound from the "front edge" of the reel for continued winding. Almost at the same time (when the wound reel leaves the support 12 through the reel swing arm), another reel swing arm 31' swings the still empty reel towards the support 12 for a new wire winding action . When the connector F of the support 12 accepts an empty spool, the connection between the connection means 27 of the spool oscillating arm 31' and the coupling means 16 of the spool 13 is released, after which the spool oscillating arm 31' returns to the outer position D' (i.e., no wheel), while waiting for the winding of another wire wheel.

It is obvious that the spool swing arms 31, 31' work alternately so that in one case there is a fully wound spool in the outer position D and an empty spool in the outer position D', and the next time it is Instead there is a fully wound spool in outer position D' and an empty spool in outer position D.

The winding device of the present invention has been described with reference to the preferred embodiment described in the accompanying drawings, but those skilled in the art should understand that various improvements can be made without departing from the principles of the present invention. The invention should therefore not be limited to that described with reference to the accompanying drawings, but is only defined by the appended claims.

Claims (14)

1. will grow line style article (K) for one kind, wire rod for example, electric wire or analogue are reeled, and online wheel the (13) gone up and take turns (13) upward device of unwinding from line, it comprises the support (12) that has extension arm (10) actuating device (25), this arm is rotatably installed in the described support (12), so that long line article (K) are wound on the last or unwinding from it of static line wheel (13), it is characterized in that: extension arm (10) is provided with clamp arm (14) in its side in the face of article (K), be used for providing guiding to long line article (K), make its periphery be in tangential direction basically with respect to line wheel (13), and at least one line wheel swing arm (31,31 ') be connected in the support (12), take turns (13) with the line of collecting or discharge in the support.

2. device as claimed in claim 1 is characterized in that: clamp arm (14) forms the V-arrangement cross section with bending of tracks (20,21), settles long line style article (K), and tracks is towards line wheel guiding.

3. device as claimed in claim 2 is characterized in that: be provided with feeding rollers (20) in clamp arm (14), so that form the tracks in vee shape cross section.

4. device as claimed in claim 3 is characterized in that: this feeding rollers (20) is spherical in shape, and is reeling and unspooling operation has and approaches zero rolling resistance to eliminate the distortion of long line style article (K).

5. as the described device of above any one claim, it is characterized in that: extension arm (10) has the device (29,30) of mobile clamp arm (14), so that the long line style article of one deck (K) are wound up on the line wheel (13).

6. device as claimed in claim 5, it is characterized in that: the described device of mobile clamp arm (14) (29,30) comprises bolt (29), this bolt (29) is by being installed in belt or the chain (30) of axle on (11) that is fixed in the support (12), and the rotation by extension arm (10) drives.

7. device as claimed in claim 1, it is characterized in that: a line wheel swing arm (31,31 ') is arranged in each side that supports (12), each bar line wheel swing arm (31,31 ') is provided with actuating device (32), so that allow line wheel swing arm (31,31 ') two positions, outer fix (D ' or D) and between the inner side (C) swing.

8. device as claimed in claim 7, it is characterized in that: connecting device (27) in the middle of a free end of swing arm (31,31 ') is provided with, be used for be arranged at line wheel (13) on middle connecting device (16) be connected, line wheel (13) can discharge or disposes thereon from support (12) by being in the face of the swing arm (31,31 ') of the winding position that supports (12).

9. as claim 1,7 or 8 described devices, it is characterized in that: support (12) and have two line wheel swing arms (31,31 '), there is one in each side that supports, in order to the unwinding position that the line of winding wheel (13) is placed on every line wheel swing arm (D ' and D) on, and collect a ceases to be busy wheel (13) on the unwinding position (D and D ') that is positioned at every line wheel swing arm.

10. as the described device of claim 1-9, it is characterized in that: described long line style article are high-voltage cables.

11. device as claimed in claim 10 is characterized in that: high-voltage cable be by the inner core with one group of line constitute the sort of, the quartz conductor internal layer surrounds this core, insulating barrier surrounds the quartz conductor internal layer, and the quartz conductor skin surrounds insulating barrier.

12. as claim 9 or 11 described devices, it is characterized in that: the diameter of high-voltage cable is 20 to 200mm, and the conductor area is 80 to 3000mm ²Scope in.

13. one kind machinery is installed, comprise as the described wind2 of above-mentioned any one claim its special supply cable line (K) in electric wire being installed in the stator slot (S) of motor the time.

14. an intermediate storage mean comprises the described wind2 as claim 1-9, its special supply cable line (K) in cable being installed in the stator slot (S) of motor the time.

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