CN1012162B - Be used for rolled goods, especially for the drum of insulated cable - Google Patents

Abstract

Two rims of drum are connected with hub flange (3) by the spoke (2) of welding separately.All spokes (2) all with reel sections (7) bolt up.The sidewall sector of being made by glass reinforced plastics (29) is fixed on the spoke (2) between reel sections (7) and the rim (1).Plastic sheeting has stretched tight on the reel sections (7).Adopt this structure, drum can be dismantled, thereby makes the accumulating volume-diminished, and cost of repair lowers.Rolled goods is subjected to good protection.The transmission of the power of this drum is reasonable, and structure is lighter.

Description

Be used for rolled goods, especially for the drum of insulated cable

Power cable is being wrapped on the drum in the originating firm, and sends on drum at last.Conventional this drum is a kind of steel structure of welding, and it has two rims that link by spoke and inner ring.Inner ring side upper support has a reel that twines cable, and is connected with hub flange by two or three center spokes.Hub flange has a centre hole, and hub flange is bearing on an axle or the conical journal by this hole.In order to bear the axial force in above-mentioned situation, in known drum, hub flange is used bracing reinforcement diagonally with inner ring on the plane of center spoke.

This known drum all carries out the zinc coated usually, and is fastening reliable.Yet, by the drum originating firm when cable factory delivers goods, this drum has very big transportation volume, thereby has increased cost of transportation, and also is difficult for measuring size when leaving standstill.

Recent cable often is surrounded by screen layer to reduce loss.The insulation that covers on the screen layer when making last procedure of cable is very thin, usually because slippage and impaired, to be cable will inevitably suffer from when making the temperature cool to room temperature on the reel Bao insulating barrier in this slippage on known drum like this.Even it is very careful when making, reel and sidewall also seldom can reach desirable smoothness, be difficult to see and draw because very little weldering is perverse, and when galvanizing, when just pulling out from the zinc bath, the inevitable area of slag on the zinc bath upper surface is attached on the surface that is deposited on reel and sidewall.In addition, the crosslinked last heat treatment of carrying out under about 85 ℃ and higher air humidity of cable for external insulation layer is disadvantageous for zinc-impregnating layer.Under this condition, the zinc oxidation gets quite fast and pulverize powder, makes the surface of reel and sidewall become coarse.Therefore on cable this position during slippage, very thin external insulation layer, especially when it is in still uncrosslinked intact and softer state, will be damaged, thereby the cable that damages the innermost layer winds the line, and causes very big loss at drum.

German patent DE-A-2439488 discloses a kind of detouchable drum, and the application's claim 1 promptly limits by this.This drum respectively has a rim at two lateral section, and each rim directly links to each other with a wheel hub pipe by the spoke in some L shaped cross sections.There is a hoop shape flange to be welded on the spoke with the coaxial heart of wheel hub pipe.The inward flange face of drum is made of the annular slab between flange and rim.Between this two boards, embed a dish core of forming by a plurality of dish core sections.Dish core sections is bearing on two flanges.With a plurality of anchor rods that extend between per two spokes in opposite directions two lateral sections of drum are strained together.

This drum is demountable, and under the state of taking apart, its transportation volume is much smaller compared with above-mentioned rigidity welded structure, but aforesaid other shortcomings then still exist.In addition, the assembling of drum is more bothersome, and the torsional rigidity of drum is not high.

Task of the present invention provides a kind of so detachable drum, and its assembling was both simple, and the torsional rigidity after the assembling is high again.This task is finished like this, and each dish core sections respectively has an end rib radially on two end limit, and this end rib is screwed in bolt with at least two spokes, and locates with a pin and corresponding spoke location the contiguous of bolt.

By with the end rib that respectively coils the core sections of at least two spoke bolt togethers with the registration device of these end ribs and spoke, except assemble simple and fast, can also between spoke and dish core sections, obtain the transmission of best power, so just can guarantee a high torsional rigidity.So this is to it is important because drum just is activated on an one lateral section when twining cable.Therefore the tension force of cable be activated when twining produces a very big torque between a lateral section and the dish core, this torque, according to the terms of settlement of German patent DE-A-2439488, just transmit by the friction of dish core sections on the annular slab of lateral section.The prestress that therefore this can be depended on anchor rod by torque transmitted that is to say the careful operation when depending on assembling.In contrast, according to solution of the present invention, torque is to transmit by the form fit bonded assembly registration device between spoke and end rib, and this just provides high torsional rigidity.Because each rib is screwed in bolt with at least two spokes, the flexure stress that acts on the dish core sections along peripheral direction when reeling has been absorbed ideally.

Below will be described further one embodiment of the present of invention by means of accompanying drawing.Description of drawings:

Fig. 1 is the axial, cross-sectional view of cable drum;

Fig. 2 is the front elevation of cable drum;

Fig. 3 and 4 is the detail drawing of bolt connecting device;

Fig. 5 is the partial section of reel sections.

Fig. 1 is for only showing the part of half axial cross section of cable drum for the purpose of understanding.Respectively there is the rim 1 in the cross section that takes the shape of the letter U the cable drum both sides.On rim 1, be welded with 12 c-shaped spokes 2 evenly distributedly.Inside, all spokes 2 all are welded on two hub flange 3, and this hub flange heart therein has the shaft shoulder 4 of a deep-draw, in order to put crank journal.Every spoke 2 is connected with a columnar reel 6 by bolt connecting device 5.Reel 6 is made of six sixth round knot sections 7, and these sections 7 have the rib 8(Fig. 2 U-shaped crimping, disposed adjacent on it is parallel to two vertical limits of axial direction), and on its two end limits, have the end rib 9 of welding.

Fig. 3 Fig. 4 shows in detail spoke 2 and holds the bolt connecting device 5 that helps between 9: welded a floor 14 on spoke 2.Arm 16 and the lug on the free end of two elastic leg 18 17 thereof are connected in the hole 15 of floor 14.For this reason, the Bian Houying in the hole 15 of spoke 2 is slightly larger than two distances between the lug 17 dorsad.Arm 16 has a cubic hole 19 on its other end, the holder of being made by thin slice 20 is wrapping square head nut 21 and is being connected in the cubic hole 19.The through hole 22,23 that bolt 24 passes spoke 2 and end rib 9 screws in the square-head nut 21.Spoke 2 and end rib 9 are located with a pin 25 that is fixed in the spoke 2 at adjacent bores 22,23 places.This structure of bolt connecting device 5 is oversimplified assembling.Owing to adopt pin 25 location, make the location of sections 7 very accurate.So, square-head nut 21 can inwardly swing by means of arm 16 and whereby with hole 22,23 automatic centerings, cause the screw-in of bolt 24 very convenient.In addition, tighting a bolt 24 o'clock, but the effect of arm 16 start-stop block keys.

Six sectors, the 29 usefulness bolts 32 of sidewall 30 are fixed on the spoke 2 between reel 6 and rim 1 periphery.Perhaps sector 29 also can be again be connected with rim 1 and/or dish core 6, and has radially the reinforced rib 31 with tangential direction, and plastic layer made or be covered with by sector 29 by fiber-reinforced plastic.

Each dish core sections 7 thermoplastic film 36 that all tacks down separately.As shown in Figure 5, plastic sheeting 36 has a flanging rib 38 that is made of welding bead 37 along its two vertical limits, analyses bar 39 of for example being made by aluminium or glass reinforced plastics of configuration in the arris 38.Bar 39 is to be connected on to be welded on the lath 41 that has hole 42 on the sections 7 by spring 40.

Owing to adopt plastic sheeting 36 and plastic wall 30, therefore rolled goods obtains best protection.When plastic wall 30 or plastic sheeting 36 damages, this part is easy to change.

When coiling or unwinding, drum is placed on the taper spindle neck of with bigger power mutual extrusion sometimes.In order to bear this power, central shaft tube 47 of configuration is located on inner wheel hub flange 4 by two pin rods 48 on drum.Central siphon 47 also can add the termination flange in both sides, and uses bolt with hub flange 4.Owing to adopt this central siphon 47, just be distributed on two spoke rings when drum is erect at the axial force of a side effect, make drum also can when twisted cable, be used as the machine wire spool.When drum is used for this situation, also can load onto central spoke ring 49 as shown in Figure 1 in addition.Central siphon 47 has an intermediate flange 50 in the centre.Short spoke 52 is used bolt with intermediate flange 50.Every spoke 52 is connected with middle rib 53 with bolt connecting device 5 shown in Figure 4 with a Fig. 3.Spoke ring 49 reel 6 and section axial load is passed on the reel 6 at center support, has the drum of this additional device, even when putting heavier rolled goods, also can be used as the machine wire spool.If only as the transportation drum, then can be without central siphon 47 and spoke ring 49, to alleviate the tare weight of drum.

Owing to adopt above-mentioned Bobbin structure, the assembling of drum and maintenance all are easy to.Because the many spokes of configuration, power can pass on the reel from crank journal well, so the end rib of spoke and reel just can make light.Drum under the disassembly status only accounts for very little space, so the accumulating expense also decreases.

Claims (13)

1, the drum that is used for rolled goods, on both sides, respectively include a rim (1), many and the rigidly connected spoke of this rim (2), one and the direct rigidly connected hub flange of every spoke (2) (3), also include one columnar, the dish core of forming by a plurality of dish core sections (7) (a 6) and sidewall (30) that is positioned between dish core (6) and the rim (1) is respectively arranged on both sides, it is characterized in that each dish core sections (7) respectively has an end rib (9) radially on two end limit, this end rib is screwed in bolt (24) with at least two spokes (2), and locatees with a pin (25) and corresponding spoke (2) at the contiguous place of bolt (24).

2,, it is characterized in that each two vertical limit of coiling core sections (7) is become the rib (8) of U-shaped by convolution according to the drum of claim 1.

3,, it is characterized in that each rib (8) of the dish core sections (7) that each is adjacent all is close to mutually according to the drum of claim 2.

4,, it is characterized in that end rib (9) and the cylindrical shape part and rib (8) weld together that coil core sections (7) according to the drum of claim 2.

5, according to one of in the claim 1 to 4 drum, it is characterized in that sidewall (30) is made up of sector (29), these sectors (29) and spoke (2), to coil core (6) and/or rim (1) be bonded assembly removably.

6,, it is characterized in that sidewall sector (29) is made of plastics or is coated with plastic layer according to the drum of claim 5.

7, according to one of in the claim 1 to 4 drum, it is characterized in that bolt connecting device (5) between end rib (9) and spoke (2) respectively contains one with arm (16) bonded assembly nut (21) un-rotatably, on the spoke (2) of this arm (16) under being fixed on swingably, have on the spoke (2) one with the nut (21) that is in the radially outer swing of arm (16) position through hole (22) coaxial, bolt (24).

8, according to one of in the claim 1 to 4 drum, it is characterized in that coiling core (6) and be covered with layer of plastic film (36).

9, drum according to Claim 8 is characterized in that each dish core sections (7) film (36) that all stretched tight separately.

10, according to the drum of claim 9, it is characterized in that having a bar (39) to be configured in the flanging rib (38) on (36) two vertical limits of film, bar (39) is to be connected on the inside face of dish core sections (7) by spring (40).

11, according to one of in the claim 1 to 4 drum, it is characterized in that a central siphon (47) is placed between two hub flange (3), central siphon (47) is with two hub flange (3) centering adjustment and for example tighten together with it with bolt.

12, according to the drum of claim 11, it is characterized in that going up a configuration intermediate flange (50) at central siphon (47) between two hub flange (3), this intermediate flange (50) is by intermediate rib (53) bolt up of other spoke (52) with dish core sections (7).

13, according to one of in the claim 1 to 4 drum, it is characterized in that spoke (2) has the C shape section of opening outwardly.

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