CN2084855U - Gas cutter - Google Patents

Abstract

The utility model discloses a gas cutter. The interior of a box body on a frame is vertically provided with a spindle whose top end is provided with a wide gear, a horizontal cam shaft which is interlocked with the wide gear and is provided with a cam, and a tappet whose lower end is provided with a sheave which is in contact with the cam and upper end is fixed with a connecting plate. The connecting plate is provided with two crank gears which are provided with eccentric shafts and simultaneously engaged with the wide gear; one connecting rod whose extended part holds a cutting tool is hinged with the two eccentric shafts. When the gas cutter runs, the cutting tool on the connecting rod is driven to conduct the circumferential motion through the crank gears; simultaneously, the crank gears move up and down along the tooth groove of the wide gear through the sheave and the tappet by the cam, and simultaneously, the cutting tool is driven to move up and down. The gas cutter is suitable for the processing for the non-radial through hole of a lateral water pipe on the wall of a boiler bladder.

Description

Gas cutter

The utility model relates to a kind of gas cutting machine, is specially adapted to the gas cutting machine of the non-radial direction through hole on the gas cutting furnace wall in the boiler manufacturing.Mainly by being fixed on supratrochlear frame and cutting tool by the acetylene that lowering or hoisting gear is fixed on the casing in the frame and is set at casing upper links clamping and formed.Belong to the autogenous cutting facility in the machining.

When making vertical boiler, the non-radially through hole of horizontal water tube generally cuts the tool manual oxygen cutting with acetylene on the processing furnace wall, but manual oxygen cutting is difficult to keep scarfing track and design molded lines to match, and the through hole that processes is difficult to reach quality standards.

The purpose of this utility model is exactly at the deficiency in the horizontal water tube through hole technology on the above-mentioned manual oxygen cutting processing furnace wall, and a kind of high efficiency that provides, the gas cutting machine that can process the non-radial direction through hole on the furnace wall.

Task of the present utility model is to realize by following technical characterictic: be horizontally disposed with a camshaft in casing, in camshaft one side suit one cam set; Opposite side suit one bevel gear; With the corresponding position of bevel gear on be provided with one and protrude from the main shaft outside the casing with perpendicular its lower end suit one bevel gear, the upper end of camshaft, bevel gear on the camshaft is meshed with bevel gear on the main shaft lower end, at the upper end of main shaft suit one wide gear, the driving gear that main shaft middle part suit one is meshed with the power source gear; On the relevant position on cam set, one arch support is set, the support lower end is provided with one and is separately fixed at corresponding the fluted roller shaft on the pin with two ends, the equal Xingqi of camshaft, suit on the fluted roller shaft one can endwisely slip along it and with cam set on the cam sheave that rolls and to contact, in cantilever tip the bottom being set vertically fixes with it, the top protrude from casing outer and can with support, the tappet that the sheave one moves up and down, the fixing tappet connecting plate on the tappet top, both ends difference fixed crank gear shaft above the tappet connecting plate, configuration and the crank gear that is meshed simultaneously with wide gear respectively on the crank gear axle, a connecting rod eccentric shaft respectively is set on crank gear, one one outward extending connecting rod of end and two connecting rod eccentric shafts are hinged, and acetylene cuts tool and is clamped on the outward extending connecting rod.Casing is suspended in the frame by lowering or hoisting gear.

According to the diameter of non-radial direction through hole on the diameter of flue and the furnace wall, sheave can be adjusted on the corresponding cam and select suitable crank gear for use and the connecting rod eccentric shaft between eccentric throw.

During work, master gear accept power and drive wide gear on the main shaft, bevel gear is rotated, wide gear drives the crank gear that is meshed with it and rotates simultaneously, makes the connecting rod drive acetylene that is hinged with the connecting rod eccentric shaft cut tool and moves in a circle; Bevel gear on the main shaft is rotated by the camshaft epicone gear driven cam that is meshed with it, by the crank gear edge being done with the teeth groove at the wide gear place of being meshed slide up and down with roll parts that sheave contact links to each other with support, tappet etc. of cam, the while also the acetylene of drivening rod cut tool and move up and down.Be clamped in acetylene on the connecting rod when cutting tool and move in a circle, also move up and down.Thereby finished processing tasks to non-radial direction through hole on the furnace wall.

Superior part of the present utility model is to have replaced manual oxygen cutting with mechanical gas cutting, has not only alleviated labor strength, and has accelerated manufacturing schedule, has improved product quality.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a vertical view of the present utility model.

Fig. 3 is a side view of the present utility model.

Fig. 4 is the box inner structure schematic diagram in the utility model.

Fig. 5 is the side view of the box inner structure in the utility model.

Fig. 6 is the utility model medium dip structural scheme of mechanism.

Fig. 7 is the side view of Fig. 6.

Fig. 8 is the interior structural representation that promotes tilting gearing of the frame in the utility model.

Fig. 9 is the casing vertical view below the lifting crossbeam in the utility model.

Figure 10 is an interlinking lever end structural representation in the utility model.

Describe in further detail below in conjunction with the technical characterictic of accompanying drawing most preferred embodiment of the present utility model.

On coaster (1), fix an inside and have fixable crossbeam (2), vertically arrange on its column portal frame (4) of dowel hole (3), the lifting crossbeam (5) that setting can fix by dowel hole (3) and frame (4) below crossbeam (2), cover screwed handwheel (6) in it is set on crossbeam (2), a screw mandrel (7) that matches with the interior external threading of handwheel (6), its lower end fixes with lifting crossbeam (5), frame (4) top is passed on top, promoting the both ends difference level and a hinged rocker shaft parallel to each other (8) of crossbeam (5), each suit one rocking bar (9) in the same outside of rocker shaft (8), with rocking bar connecting plate (10) two rocking bars (9) are connected into a four-bar mechanism, the support plate (11) that two tops have the horizontal roller axle is set on each rocker shaft (8), roller (12) is housed on roller shaft, a cross carrying plate (13) both ends are pressed in respectively on the roller corresponding with it (12), outside respectively " L " shape bolt (14) of turning that joins with it and the arm-tie (15) that fixes with its turning are respectively established in two ends below cross carrying plate (13), arm-tie (15) lower end is hinged with casing (16) upper end that corresponding centre has a horizontal interlayer respectively, and casing is suspended in the frame (4).In the following interlayer of casing (16), be horizontally disposed with a camshaft (17), in camshaft (17) one side suits one cam set (18), opposite side suit one bevel gear (19), with the corresponding position of bevel gear (19) on be provided with one and protrude from main shaft (21) outside the casing (16) with perpendicular its lower end suit one bevel gear (20) upper end of camshaft (17), bevel gear (19) on the camshaft (17) is meshed with bevel gear (20) on main shaft (21) lower end, in main shaft (21) upper end the wide gear (22) that inwardly concaves in the middle of one top is set, can remove hold-down bolt (23) with the hand that main shaft (21) screw for one fixes wide gear (22) and main shaft (21) by pressure pad (24), when unscrewing hand and remove hold-down bolt (23), wide gear (22) can be thrown off main shaft (21) and freely stirred, so that regulate required operating angle.On the relevant position on cam set (18), one arch support (25) is set, support (25) lower end is provided with one and is separately fixed at corresponding the fluted roller shaft (26) on the pin with two ends, the equal Xingqi of camshaft (17), and going up suit one at fluted roller shaft (26) can be along its sheave (27) that endwisely slips and contact with the last cam rolling of cam set (18); With the corresponding casing of cam set (18) (16) sidewall on open a window, one declutch shift shaft (28) parallel with fluted roller shaft (26) is set on the window, and establishing one on declutch shift shaft (28) can endwisely slip and can stir the shift fork (29) of sheave (27) along it; In cantilever tip vertically and be symmetrical arranged the bottom and fix with it, the top protrudes from casing (16) two tappets (30) outward, and sheave (27), support (25), tappet (30) but one move up and down.The fixing tappet connecting plate (31) on tappet (30) top, difference fixed crank gear shaft (32) in both ends above the tappet connecting plate (31), configuration and the crank gear (33) that is meshed simultaneously with wide gear (22) respectively on crank gear axle (32), on crank gear (33), respectively establish a connecting rod eccentric shaft (34), one the one outward extending connecting rod of end (35) is hinged with two connecting rod eccentric shafts (34), at connecting rod (35) the hinged ambulatory splint of outward extending base portion (36), between ambulatory splint (36) and connecting rod (35), fix a spring (37), go up device one fishbolt (38) and revolve thereon binding nut (39) at ambulatory splint (36), on the extension end of connecting rod (35), also establish an eccentric wheel handle (40) that links to each other with ambulatory splint (36), acetylene cuts tool, and the binding nut (39) that is screwed is fixed on the ambulatory splint (36).During work, move eccentric wheel handle (40) slowly, make and cut tool and cut by rising in the garden, progress into normal movement locus after, eccentric wheel handle (40) is fixing.Also on casing (16), its fulcrum is set and casing (16) is hinged for easy to operate, one end places below the tappet connecting plate (31), the other end is the curved lever lifting handle (41) of operating grip, can reach the purpose that promotes sheave (21) by lifting to tappet connecting plate (31), it and shift fork (29) are used, and just sheave (27) can be allocated on the predetermined cam.At last, establish a mainshaft gear (42) on the main shaft (21) in casing (16) is gone up interlayer, with the corresponding position of mainshaft gear (42) on the configuration one change-speed gearing group, the output gear of change-speed gearing group (43) is meshed with mainshaft gear (42), the input gear (44) of change-speed gearing group and coaxial linking to each other of big belt pulley (45), big belt pulley (45) links to each other by the output of belt with buncher (46).

Non-radially through hole to the furnace wall horizontal water tube adds man-hour, loosen hand earlier and remove hold-down bolt (23), rotate wide gear (22), acetylene is cut tool to be adjusted on the predetermined angle, can add man-hour to back one side through hole, the rotation four-bar mechanism when turning over flue to the processing of last side through hole, make casing (16) drive cut tool and after opposite side tilts, can process, make that so the non-radial direction through hole on the furnace wall connects.

In the present embodiment: two crank gears (33) centre-to-centre spacing is 201mm, crank gear (33) is 136mm with wide gear (22) centre-to-centre spacing, the number of teeth 68 of crank gear (33) and wide gear (22), modulus is 2, the eccentric throw of gear train is 3～40mm, bevel gear (20) is 1:1 with the ratio of revolutions of bevel gear (19), and wide gear (22) is 1:1 with the ratio of revolutions of crank gear (33).

Claims (6)

1, a kind of gas cutting machine that is applicable to that the non-radial direction through hole on the gas cutting furnace wall is used in the boiler manufacturing, mainly by being fixed on supratrochlear frame and cutting tool by the acetylene that lowering or hoisting gear is fixed on the casing in the frame and is set at the connecting rod clamping on casing top and formed, it is characterized in that in casing, being horizontally disposed with a camshaft, camshaft one side suit one cam set, opposite side suit one bevel gear; With the corresponding position of bevel gear on be provided with one with its perpendicular lower end suit one bevel gear of camshaft, the upper end protrudes from the outer main shaft of casing, bevel gear on the camshaft is meshed with bevel gear on the main shaft lower end, at the upper end of main shaft suit one wide gear, the driving gear that main shaft middle part suit one is meshed with the power source gear; On the relevant position on cam set, one arch support is set, the support lower end is provided with one and is separately fixed at corresponding the fluted roller shaft on the pin with two ends, the equal Xingqi of camshaft, suit on the fluted roller shaft one can endwisely slip along it and with cam set on the cam sheave that rolls and to contact, in cantilever tip the bottom being set vertically fixes with it, the top protrude from casing outer and can with support, the tappet that the sheave one moves up and down, the fixing tappet connecting plate on the tappet top, both ends difference fixed crank gear shaft above the tappet connecting plate, configuration and the crank gear that is meshed simultaneously with wide gear respectively on the crank gear axle, a connecting rod eccentric shaft respectively is set on crank gear, one one outward extending connecting rod of end and two connecting rod eccentric shafts are hinged, and acetylene cuts tool and is clamped on the outward extending connecting rod.

2, gas cutting machine according to claim 1, it is characterized in that at the both ends that promote crossbeam a level and a hinged rocker shaft parallel to each other respectively, each suit one rocking bar in the same outside of rocker shaft, with the rocking bar connecting plate two rocking bars are connected into a four-bar mechanism, the support plate that two tops have the horizontal roller axle is set on each rocker shaft, roller is housed on roller shaft, cross carrying plate both ends are pressed in respectively on the roller corresponding with it, outside respectively " L " shape bolt of turning that joins with it and the arm-tie that fixes with its turning are respectively established in two ends under cross carrying plate, the arm-tie lower end is hinged with the casing upper end that corresponding centre has a horizontal interlayer respectively, and casing is suspended in the frame.

3, according to claim 1 or the described gas cutting machine of claim 2, it is characterized in that with the corresponding wall box of cam set on open a window, one declutch shift shaft parallel with fluted roller shaft is set on the window, and establishing one on declutch shift shaft can endwisely slip and can stir the shift fork of sheave along it.

4, according to claim 1 or the described gas cutting machine of claim 2, it is characterized in that its fulcrum is set and casing is hinged on casing, an end places below the tappet connecting plate, and the other end is the curved lever lifting handle of operating grip.

5, according to claim 1 or the described gas cutting machine of claim 2, it is characterized in that at the hinged ambulatory splint of the outward extending base portion of connecting rod, between ambulatory splint and connecting rod, fix a spring, device one fishbolt and the binding nut that revolves thereon on ambulatory splint, on the extension end of connecting rod, also establish an eccentric wheel handle that links to each other with live splint.

6, gas cutting machine according to claim 1, the eccentric throw that it is characterized in that gear train is 3～40mm, and the ratio of revolutions of bevel gear and bevel gear is 1:1, and the ratio of revolutions of wide gear and crank gear is 1:1.

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