During the general troughed rubber belt conveyor head of background technology overtension, must take to reduce the way of tension force, otherwise the stress of pulling apart of adhesive tape holds and dares not accept, when travelling apron reaches tens of Km, the tension force of pulling apart that is exactly steel rope belt carcass or aramid fiber belt carcass can bear, I manage it and have to its length is divided into several, increased middle transfer point, strengthened investment cost, conveyer system as German 210kM, used 30 long shorter sealing-tape machines of 7Km to form respectively, [seeing battle-axe used in ancient China work novel band conveyer design manual the 11st a page table 1-17] this is the way of troughed rubber belt conveyor head it off.Japan's pipe travelling apron, also can only accomplish one of 5kM at present, the invention discloses a kind of new method, that be exactly adopt the intermediate friction drive principle and in the middle of the arc adhesive tape invented actuating device solve this type of problem that the garden cross-country designing institute of tubular type travelling apron runs into.
Description of drawings now is elaborated in conjunction with the accompanying drawings, and the lonely shape adhesive tape in half garden of now lifting is an example, is called for short half garden shape adhesive tape:
Fig. 1 general assembly drawing a-garden tubular type travelling apron; B-middle actuating device ‖ figure-general assembly drawing-garden tubular type travelling apron; B-middle actuating device
Actuating device is always schemed 1-half garden shape adhesive tape in the middle of Fig. 2; 2--is with the driving drum of half garden shape groove; 3--is with the changed course cylinder of half garden shape groove; 4--is with the seamless carrying roller group of half garden shape groove; 5-tightening device; 6-backhaul band pulley [inflation wheel.
Total Fig. 7-the skeleton of Fig. 3 half garden shape adhesive tape; 8-rubber cover; Total Fig. 7-the skeleton of 9-triangular form band ‖ figure, 3 half garden shape adhesive tapes; 8-rubber cover; 9-triangular form band
Total Figure 10-the cylinder surface of driving drum of Fig. 4 band half garden shape groove; 11-half garden shape surface casting glue groove; 12-triangle trough of belt; 13-main shaft and bearing.
Total Figure 14-the cylinder surface of changed course cylinder of Fig. 5 band half garden shape groove; 15-light face, half garden shape groove; 16-triangle trough of belt; 17-main shaft and bearing
The total Figure 18 of the seamless carrying roller-seamless carrying roller of Fig. 6 band half garden shape groove; 19-roller rack;
Fig. 7 tightening device is always schemed; 20-spiral tightening device, 21-winch or hydraulic pressure tightening device.
Specific implementation method is installed on tubular type travelling apron carrying band below, garden with this device, shown in figure one; It is near that two tape surfaces are glued mutually, generally is positioned on main frame tension force projecting point or the entrance of go up a slope point or crooked circuit, so just can reduce head tension force, decides on adopting several middle actuating devices; As adopting towed middle actuating device, head will be pacified driving device, be calculated as follows;
N-middle actuating device number; [when the head transmission power equals 1/n, being n+1]
The total tension force kN of P-head;
V=belt speed m/s;
M-head transmission tension force kN[m=p, or m ≠ p]
N-total tension force the kN of actuating device in the middle of each.
The gross horsepower Y of whole garden tubular type travelling apron
N=P/[n+1] kN; Or
p=P/[n+1] kN
Also kN can be changed into the kW number,
Actuating device gross horsepower in the middle of each: be calculated as follows p=Nv kW
When the gross horsepower Y=Pv={np+m}v[head transmission power of whole garden tubular type travelling apron is not included in the n, its tension force is not equal to N again m is added, when equaling 1/n as the head transmission power, m=p] if when being used for the flat shape backhaul band of sinotype garden tubular type travelling apron, the adhesive tape of actuating device in the middle of the adhesive tape of available flat shape is done, but when being used in the carrying band, still need use the present invention.As garden tubular type travelling apron master tape is then take-up device employing figure seven winches or hydraulic pressure tightening device 21 of cross-country type; When being short range<1kM as garden tubular type travelling apron master tape, then take-up device adopts figure seven spiral tightening devices 20.
Half garden shape adhesive tape is by skeleton 7; V-belt 9 and rubber cover 8 are formed, and shown in figure three, half garden shape mould is put into the vulcanizer sulfuration form, and skeleton then uses special weaving method of the present invention to be made into cord fabric, and its material can be used biological fiber; Aramid fiber or nylon fiber, rubber cover are then looked purposes and are different, optional fire-resistant, heat-resisting; Acidproof alkali; Oil resistant; Chemical ingredients such as wear-resisting, V-belt then with the sulfuration of V-type V-belt or cold bonding on skeleton and rubber cover, then available natural rubber of the selected rubber of adhesive tape and neoprene compatibility form.To decide according to purposes.
Transmission and changed course cylinder are shown in figure four figure five, their available steel plates roll welding, or cast with engineering plastics, owing to want car to go out V-type triangle trough of belt 12 grooves, the tube skin is thick, perhaps is welded into thick band steel combination, and driving drum half garden shape groove 11 surfaces are casting glue groove, and half garden shape groove 15 of changed course cylinder is the light face, his parts such as swabbing pig; Gear wheel is equal to TD-75 or the DTII type is the same.
Carrying roller 18 then will be used engineering plastics such as polyurethane shown in figure six; UPE; PVC etc. cast or car system forms, because seamless link, carrying roller one side will prescind a 20-45 degree triangle, and this is the characteristics of this patent.Bearing is then made for oil-containing polyurethane or oil-containing nylon in its inside, can remove the hardship of oiling like this from.Carrying roller outer wrap one deck oil-containing [molybdenum disulphide and so on] polyurethane, middle little available steel of axle or glass-felt plastic car become.6 of the return idlers of rotating band utilize inflation wheel or pulley to replace, and get final product as for the optional common universal standard part of other accessories.