Machine element or mechanism – Elements – Gear casings
Patent
1982-05-06
1985-03-12
Hermann, Allan D.
Machine element or mechanism
Elements
Gear casings
74661, 74421A, 299 34, 299 43, F16H 5702, F16H 3706, E21C 2732
Patent
active
045037310
DESCRIPTION:
BRIEF SUMMARY
This invention relates to drive gearboxes for an armoured face conveyor (A.F.C.).
An A.F.C. has a limited number of positions where a drive unit can be sited (normally 2 to 3). With increasing power demands up to 1200 hp maximum, gearbox capacities are of the order of 500 hp. although 300 hp should be sufficient for the majority of installations.
To date this has led to gearboxes being excessively over-engineered.
The two common gearbox shapes suffer characteristic problems. the face and consequently width is important. A 500 hp unit would necessarily be much wider than the proposed drive gearbox. overhung motor and coupling. Again this problem is obviously increased by the use of a larger 500 hp motor.
An object of the present invention is to obviate or mitigate the aforesaid disadvantages.
The terminology "in-line" and "right-angled" in the field of A.F.C. Conveyors refers to the position of the gearbox relative to the conveyor and not the position of the input shaft relative to the output shaft.
It should be noted that only after coupling the gearbox or each primary box to the nose module are the gearboxes described as "right-angled" or "in-line".
According to the present invention, there is provided a drive gearbox adaptable as an in-line gearbox or a right angled gearbox and characterised by an in-line primary box, a right-angled primary box and a nose module output section which is coupled to at least one of said primary boxes, each box having an open-ended interface which exposes the gearing which engages gearing of the nose module, and said module having two open interfaces so as to be capable of being coupled to one or both primary boxes and cover means to enclose the open interface when only one primary bos is coupled to the module.
An embodiment of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a plan view, and
FIG. 1A is a view of an in-line primary box according to the invention;
FIG. 2 is a plan view and
FIG. 2A is a side view of a nose module according to the invention;
FIG. 3 is an end view and
FIG. 3A is a side view of a right-angled primary box according to the invention;
FIG. 4 is a side view and
FIG. 4A is a plan view of a nose module coupled to an in-line primary box;
FIG. 5 is an end view and
FIG. 5A is a side view of a nose module coupled to a right-angled primary box;
FIG. 6 is a side view of a nose module coupled to a right-angled primary box and an in-line primary box;
FIG. 7 is a plan view and
FIG. 7A is a side view of the gearbox of the FIGS. 6 and 6A in situ.
Referring to the drawings, a drive gearbox is formed of two supplementary transmission casing, namely an in-line primary box 1 (FIG. 1) a rightangled primary box 3 (FIG. 3) and an output casing in the form of a nose module output section 2 (FIG. 2) which is coupled to one or other or both of the primary boxes (FIGS. 4 to 6).
Each primary box 1, 3 has an input shaft 10 extending from one end for coupling to a motor 12 (FIG. 7) and the other end of each box 1, 3 has an open interface 14 which reveals output gearing 16 for coupling to the gearing 18 of the nose module.
The nose module includes a substantially triangular configuration of which two adjacent sides form open interfaces 20, 22 which reveal the gearing 18, the open interfaces being disposed in planes at an acute angle to each other. A cover (not shown) is provided to cover one of the interfaces when the nose module is coupled to only one primary box 1 or 3.
The nose module 2 can be coupled to either one of the primary boxes 1 or 3, as shown in FIGS. 4 and 5. When the nose module 2 is coupled to the in-line primary box 1, the gearbox formed thereby lies horizontal with its longitudinal axis in line with that of the conveyor; whereas, the gearbox formed by coupling the nose module to a right-angled primary box 3, although also lying horizontal, has its longitudinal axes lying normal to that of the conveyor.
If the nose module is coupled to both 300 hp primary boxes 1, 3 (FIG. 6) a 500 h
REFERENCES:
patent: 984203 (1965-02-01), Oellrich
patent: 2548182 (1951-04-01), Wagner
patent: 2810565 (1957-10-01), Dommann
patent: 2918825 (1959-12-01), Bade
patent: 3029661 (1962-04-01), Schmitter
patent: 3033542 (1962-05-01), Rosler
patent: 3798991 (1974-03-01), Kime et al.
patent: 3864990 (1975-02-01), Lacoste
patent: 4159851 (1979-07-01), Rosler
Anderson Strathclyde PLC
Hermann Allan D.
Quiray Arthur T.
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