CN86210137U

CN86210137U - Electric cable-winding and relieving unit

Info

Publication number: CN86210137U
Application number: CN 86210137
Authority: CN
Inventors: 吴志仁
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-12-03
Filing date: 1986-12-03
Publication date: 1987-07-15

Abstract

The utility model relates to an electric cable-winding and relieving unit which is composed of a fixed reel drum, a rotating reel drum and a transmission mechanism. When an electric cable pulls the rotating reel drum to rotate, through a planetary gear, a transmission system drives an axis to rotate to tighten a spiral power spring; meanwhile, through a thread feed device, the decreased part of the electric cable on the rotating reel drum is fed from the rotating reel drum to the fixed reel drum; when the electric cable is loosened, through the action of the spiral power spring, the movement is made opposite. Therefore, the function of automatically winding and relieving conveying signals with an electric cable can be realized.

Description

Electric cable-winding and relieving unit

The utility model is the mechanical driving device of cable and general lead.

By the dress electronic scale lift heavy object being carried out weight metering on bridge crane is the technology that extensively adopts at present.Electronic scale is made up of weight sensor and computer two parts, and the two connects by cable, and computer generally is to be fixed on a certain position, and transducer is to be installed on the suspension hook, so cable will constantly be made stretching motion along with the lifting of suspension hook.Influence operation and break cable in order not make cable produce to tangle when flexible, cable is connected on the reeling-up reeling-out device, the simplest cable reeling-up reeling-out device is exactly a rubber band, but that volume is put effect is bad.Dandong railroad suboffice Electronic Technology Development Co. is public a kind of cable roll-up apparatus on the electronic scale of producing, it is that cable is wrapped on the rotating reel, reel one end is fixed together with axle, the axle other end is fixed with clockwork spring, the reel other end is by the metal contact that links to each other with cable is housed, metal contact contacts with metal garden ring in companion reel rotation process all the time, and metal garden ring is connected with another section cable on being connected on computer.By contact and metal garden ring, realized continuing of the signal of telecommunication in two sections cables.When cable extended with suspension hook, the pulling reel rotated, and reel drives the axle rotation, tightens clockwork spring; Otherwise when cable loosened with the suspension hook rising, the elastic force of clockwork spring made the reel backward rotation, and cable is entangled on the reel.Though it is better that this cable roll-up apparatus volume is put effect, cable divides does two sections, is slidingly connected by contact and metal garden ring, often influences the measuring accuracy of electronic scale because of contact resistance changes.

For overcoming the shortcoming of above-mentioned cable roll-up apparatus, the utility model provides a kind of not only can guarantee automatically that volume is put but also needn't be with the cable roll-up apparatus of two sections cables.

Figure 1 shows that the structural representation of this cable roll-up apparatus.Fig. 2 is its left view.Wherein 1 is dead block, and 2 is clockwork spring, and 3 is axle, 4 is cable, and 5 are the line falling dish, and 6 is bearing pin, 7 for falling bar, and 8 for falling the connecting key of bar and axle, and 9 is the balance ball, 10 is rotating drum, and 11 is the center of rotation gear, and 12 is planetary gear, 13 is tie-rod, 14 is the fixed center gear, and 15 is the connecting key of tie-rod and axle, and 16 is support.

This cable roll-up apparatus is to realize that by reel and a sets of transmission mechanism automatic rolling of cable puts. Reel comprises dead block (1) and the rotating drum (10) of coaxial distribution, dead block is fixed on the support (16), be fixed with the plane clockwork spring vertical with axle (2) between the barrel of dead block and the axle (3), in rotating drum inside planetary transmission system is housed, this system comprises with rotating drum and being fixed together, and the center of rotation gear (11) that can rotate around the axis, be fixed on the fixed center gear (14) on the support, planetary gear (12) and tie-rod (13), tie-rod and axle have connecting key (15), square with the axis Take-up device is arranged between dead block and rotating drum, and this Take-up device is by bar (7) and key (8) are fixedly connected with axle. When cable was made extensional motion in company with suspension hook, its pulling force ordered about rotating drum and rotates, and rotated by above-mentioned planetary transmission system band moving axis, tightened clockwork spring; Simultaneously, the rotation of axle has driven again the rotation of Take-up device, and cable is decided reel and poured on the dead block by turning to. Otherwise, when cable loosens with the suspension hook rising, at the torsional interaction of the clockwork spring that tightens Lower, axle is made counter-rotation ， And and is driven the rotating drum counter-rotation by planetary transmission system, the cable winding that loosens to reel; Take-up device and axle are made counter-rotation synchronously simultaneously, and cable is poured on the rotating drum by dead block. In said process, because Take-up device plays middle transition mechanism effect, the increase of cable on the rotating drum (or minimizing) part has been transitioned on the dead block, thereby has realized the purpose of putting by the method automatic rolling of winding with a complete cable. Above-mentioned Take-up device can be made the garden plate-like, and its edge is provided with groove, and cable is placed in one just, and the line falling dish links together by bearing pin (6) and the bar that falls.

The cable roll-up apparatus that this utility model provides both can be rolled up payout automatically, and self does not twist cable, does not produce and tangles, and an available again complete cable comes transmission of electric signals.

Claims

1, the cable roll-up apparatus, constituted by reel and transmission mechanism, reel comprises the dead block (1) and the rotating drum (10) of coaxial distribution, between dead block barrel and axle (3), be fixed with the plane clockwork spring (2) vertical with axle, it is characterized in that planetary transmission system being housed in rotating drum inside, this system comprises with rotating drum and being fixed together, the center of rotation gear (11) that can rotate around the axis, and the fixed center gear (14) that is fixed together of support (16), planetary gear (12) and tie-rod (13), tie-rod has connecting key (15) with axle, square with the axis line falling device is arranged between dead block and rotating drum, this line falling device is connected with axle by falling bar (7), and the bar that falls passes through key (8) and spool fixedlys connected.

2, as the said cable roll-up apparatus of claim 1, it is characterized in that said line falling device is garden dish (5), fluted in the middle of the edge, be connected with bar (7) by bearing pin (6).