CN2470609Y - Driving device adopting double-side-teeth arc-shape synchronous belt - Google Patents

Abstract

A drive device with adoption of double-sided rack-circle-shaped synchronous belt comprises a support, a rack-circle-shaped synchronous belt drive gear, a drive rotating shaft, a drive gear pedestal bearing, a rack-circle-shaped synchronous belt driven gear, a driven circular shaft, a driven gear pedestal bearing, a rack-circle-shaped synchronous belt pinion, a pinion rotating shaft, a pinion pedestal bearing, a double-sided rack-circle-shaped synchronous belt, a single-sided rack-circle-shaped synchronous belt and a thin steel plate. When in use, the drive device is welded with a numerical control cutting machine or an automatic welding machine; the drive rotating shaft of the drive device is driven by a motor to drive the numerical cutting machine or the automatic welding machine to reciprocate for to-and-fro processing. In operation no mechanical vibration is produced and no base is needed for the installation of rack, so that the cost and weight of the entire machine can be reduced.

Description

Adopt the double cog arc drive unit of band synchronously

The utility model relates to a kind of being used for and is converted to reciprocating transmission device with rotatablely moving, and further is meant a kind of double cog arc drive unit of band synchronously that adopts.

Being used for to rotatablely move in the machineries such as existing oxyacetylene plasma cantilevered mode digital control cutting machine, oxyacetylene plasma tubular type (comprising cylindrical tube, irregular barrel) numerical control cutting machine, automatic arc welding is converted to reciprocating drive unit, generally all is to adopt rack and pinion directly to mesh.The problem that this engagement system exists is: 1. because rack and pinion is a rigid engagement, so produce the circular runout along gear, this mechanical vibration can't be eliminated, so that influence the quality of processing of production technology.2. because tooth bar must be installed in a machining accuracy height and the basal plane of roughness higher (promptly not too coarse) on, therefore cause consumable material, the processing cost of pedestal is very high.3. tooth bar pedestal that the place is installed must guarantee that also enough strength and stiffness are arranged, thus make and have influence on the pedestal heaviness complete machine and can't realize microminiaturization, thus limited the using scope of machine product.

Because the above-mentioned defective of prior art, the purpose of this utility model, be for machineries such as existing oxyacetylene plasma cantilevered mode digital control cutting machine, oxyacetylene plasma tubular type numerical control cutting machine and automatic arc welding provide employing double cog arc that a kind of supporting use do not have the machinery vibration drive unit of band synchronously, making simultaneously that it need not to provide the pedestal of installation tooth bar and is placed on the irregular working surface also can carry out operation smoothly.

Solution of the present utility model is as follows.It has a support, fixedly be equiped with the driving wheel block bearing in the perforate on the dual-side of support respectively, an active rotating shaft is located in these two driving wheel block bearings, active rotating shaft in support tightens and is fitted with a sector just as step band driving gear, in support, also have take turns footpath size and the number of teeth all with sector just as the wheel footpath of step band driving gear and the number of teeth equates and its axial and sector just as go on foot be with driving gear the sector that axially parallels just as going on foot With a driven gear, sector is equiped with two follower block bearings just as the axial aperture internal fixation of step With a driven gear, a driven circular shaft that is located in these two follower block bearings, its two ends are fixed in the perforate on the support dual-side, sector just as step band driving gear and sector just as the support that goes on foot between the With a driven gear in, it is all identical with the number of teeth and axially all be with small gear with a plurality of sectors that sector is with the quantity that axially parallels of driving gear to be at least 5 just as the step just as going on foot to be equiped with wheel footpath, all fasteningly in the axial aperture of each sector just as step band small gear be fitted with the steamboat rotating shaft, the two ends of every steamboat rotating shaft are located in the steamboat block bearing of fixing installing in the perforate of support dual-side respectively, in support, also has one around being engaged on sector just as step band driving gear, sector is just as the step With a driven gear and a plurality of sector all is processed with engaging tooth just as two outer faces of step band small gear and double cog arc in the form of a ring is with synchronously, have the strip single cog arc that is meshed with it and be with synchronously below the double cog arc is with synchronously, this single cog arc bottom of band synchronously is fixed on the sheet metal of a strip.

The utility model with said structure is when installing and using, the processing main frame and the support of the present utility model of machineries such as aforementioned numerical control cutting machine and automatic arc welding are solidly fixed, simultaneously active rotating shaft of the present utility model are associated in the motor of processing main frame by coupling, retarder.The scene adds man-hour, and synchronous band of the single cog arc that is fixed together and strip sheet metal are placed on the workpiece to be processed of work-yard.Like this, under the drive of motor, sector rotates towards certain direction (as clockwise direction) just as step band driving gear, drive the double cog arc that is meshed with it and be with synchronously, the synchronous band of double cog arc drives sector again and rotates toward the clockwise direction together just as step band small gear just as step With a driven gear and a plurality of sector; Otherwise the double cog arc is with synchronously if sector just as going on foot the band driving gear towards rotation counterclockwise, then drives, sector rotates according to counter clockwise direction just as going on foot the band small gear together just as step With a driven gear and a plurality of sector.Because a plurality of sectors are the engagement of no gap with the synchronous band of double cog arc just as step band small gear this moment, also just make synchronous band of double cog arc and single face sector mesh for no gap between the band synchronously, but because the synchronous band of single cog arc is fixed on the processed piece motionless, therefore just make the utility model remaining part that is positioned at its top together with the processing main frame that is connected, do reciprocating linear motion along the synchronous band of the single cog arc of below, thereby reach the purpose that main frame is back and forth processed.

The utlity model has following advantage: 1. because all driving gears are not directly to be with synchronously with fixed single cog arc to be meshed, but realize engagement indirectly by double cog arc band and the engagement of band synchronously of single cog arc synchronously, so just eliminated effectively along gear beating radially, make complete machine not have the machinery vibration, thereby guaranteed the quality of mechanical technology processing.Such as the minimizing of beating of the cutting head that can make numerical control cutting machine, guarantee that the roughness of cutting surface improves (being that cutting surface is not too coarse).2. the utility model need not to provide for machining accuracy, roughness, the high pedestal of strength and stiffness requirement for the synchronous band of single cog arc is installed, so reduced raw-material consumption, has reduced cost, has alleviated weight, thereby can realize the microminiaturization of complete machine.Even being placed on the irregular working surface, synchronous band of the single cog arc that 3. is fixed together and strip sheet metal also can successfully process.These characteristics are well suited for the split requirement of aforementioned numerical control cutting machine and automatic arc welding, can satisfy and cut on the irregular non-ferrous metal plate with on cylindrical tube, the irregular barrel, thereby the realization conveniently moving is not limited by the work-yard, has just enlarged the using scope of product yet.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the forward sectional structure chart (that is A-A sectional view of Fig. 2) of a kind of concrete structure of the utility model;

Fig. 2, Fig. 3 and Fig. 4 are respectively B-B, C-C and the D-D sectional view of Fig. 1;

Scheme of installation when Fig. 5 connects use for Fig. 2 the utility model with motor, retarder and the coupling of main frame when installing and using.

Referring to Fig. 1 to Fig. 4.The utlity model has a support 4, fixedly be equiped with driving wheel block bearing 7 in the perforate on the dual-side of support 4 respectively, an active rotating shaft 2 is located in these two driving wheel block bearings 7, active rotating shaft 2 in support 4 tightens and is fitted with a sector just as step band driving gear 3, in support 4, also have a wheel footpath size and the number of teeth all with sector just as the wheel footpath of step band driving gear 3 and the number of teeth equates and its axial and sector just as go on foot be with driving gear 3 the sector that axially parallels just as going on foot With a driven gear 10, sector is equiped with two follower block bearings 11 just as the axial aperture internal fixation of step With a driven gear 10, a driven circular shaft 9 that is located in these two follower block bearings 11, its two ends are fixed in the perforate of support 4 dual-sides, sector just as step band driving gear 3 and sector just as the support 4 that goes on foot between the With a driven gear 10 in, it is all identical with the number of teeth and axially all be with small gear 16 with a plurality of sectors that sector is with the quantity that axially parallels of driving gear 3 to be at least 5 just as the step just as going on foot to be equiped with wheel footpath, all fasteningly in the axial aperture of each sector just as step band small gear 16 be fitted with steamboat rotating shaft 17, the two ends of every steamboat rotating shaft 17 are located in the steamboat block bearing 19 of fixing installing in the support 4 dual-side perforates respectively, in support 4, also have one and be with driving gear 3 synchronously around being engaged on arc, sector is just as step With a driven gear 10 and a plurality of sector all is processed with engaging tooth just as step band small gear 16 two outer faces and double cog arc in the form of a ring is with 1 synchronously, have the strip single cog arc that is meshed with it at the double cog arc below synchronously with 1 and be with 21 synchronously, this single cog arc is fixed on the sheet metal 23 of a strip with 21 bottom synchronously.

In the embodiment of Fig. 1 to Fig. 4, driving wheel block bearing 7 is fixing in the perforate on support 4 dual-sides, after putting into two driving wheel block bearings 7 in the perforate on support 4 dual-sides respectively, in the perforate of the support 4 in two driving wheel block bearings, 7 outsides, install bearing box gland 8 respectively additional again; Active rotating shaft 2 in support 4 tightens equipped sector just as step band driving gear 3, be just as the conical fixed cover 5 that installs additional in step band driving gear 3 central shaft holes sector to be fixed on the active rotating shaft 2 just as step band driving gear 3, press to be fixed on sector at an end of conical fixed cover 5 then just as the gland 6 on the step band driving gear 3 by sector.In the fixedly installing of sector just as two follower block bearings 11 in the axial aperture of step With a driven gear 10, be between these two follower block bearings 11, to add the stop collar 12 that tightly is enclosed within outside the driven circular shaft 9, and press to be fixed on sector just as the gland 13 on the step With a driven gear 10 outer end of a follower block bearing 11 therein; Driven circular shaft 9 two ends are fixing in the perforate on support 4 dual-sides, is at setting sleeve 15 that is fixed in the side perforate of the tight cover of driven circular shaft 9 one ends, presses respectively to be fixed on the gland 14 on the support 4 at driven circular shaft 9 two ends then.Two steamboat block bearings 19 fixing in the perforate on support 4 dual-sides, be to take one of them steamboat block bearing 19 directly is fixed in the perforate on support 4 one sides, and between this steamboat block bearing 19 and sector are just as step band small gear 6, add the stop collar 18 that tightly is enclosed within the steamboat rotating shaft 17, and another steamboat block bearing 19 is to be packed in earlier in the bearing gland 20, then this bearing gland 20 is fixedly set in the axial aperture on support 4 another sides.The single cog arc is synchronously with 21 bottoms fixing on strip sheet metal 23, be to offer a notch in strip sheet metal 23 upper edge strip directions, be with 21 bottoms tightly to be embedded in this notch synchronously the single cog arc then, and press respectively to be fastened on the press strip 22 of two strips on the sheet metal 23 with 21 both sides synchronously at the single cog arc.

Referring to Fig. 5, the utility model links active rotating shaft 2 of the present utility model when installing and using by the output shaft of coupling 24 with retarder 25, and the input end of retarder 25 connects by joiner with the output terminal of motor 26.

Claims (5)

1, a kind of double cog arc drive unit of band synchronously that adopts, it is characterized in that, it has a support, fixedly be equiped with the driving wheel block bearing in the perforate on the dual-side of support respectively, an active rotating shaft is located in these two driving wheel block bearings, active rotating shaft in support tightens and is fitted with a sector just as step band driving gear, in support, also have take turns footpath size and the number of teeth all with sector just as the wheel footpath of step band driving gear and the number of teeth equates and its axial and sector just as go on foot be with driving gear the sector that axially parallels just as going on foot With a driven gear, sector is equiped with two follower block bearings just as the axial aperture internal fixation of step With a driven gear, a driven circular shaft that is located in these two follower block bearings, its two ends are fixed in the perforate on the support dual-side, be equiped with the wheel footpath just as step band driving gear and sector in just as the support between the step With a driven gear and the number of teeth is all identical and axially all be with small gear just as going on foot a plurality of sectors that the quantity that axially parallels of being with driving gear is at least 5 just as going on foot with sector at sector, all fasteningly in the axial aperture of each sector just as step band small gear be fitted with the steamboat rotating shaft, the two ends of every steamboat rotating shaft are located in the steamboat block bearing of fixing installing in the perforate of support dual-side respectively, in support, also has one around being engaged on sector just as step band driving gear, sector is just as the step With a driven gear and a plurality of sector all is processed with engaging tooth just as two outer faces of step band small gear and double cog arc in the form of a ring is with synchronously, have the strip single cog arc that is meshed with it and be with synchronously below the double cog arc is with synchronously, this single cog arc bottom of band synchronously is fixed on the sheet metal of a strip.

2, the drive unit of the synchronous band of employing double cog arc according to claim 1, it is characterized in that, the driving wheel block bearing is fixing in the perforate on the support dual-side, after putting into two driving wheel block bearings in the perforate on the support dual-side respectively, in the perforate of the support in the two driving wheel block bearings outside, install the bearing box gland respectively additional again; Active rotating shaft in support tightens equipped sector just as step band driving gear, be just as the conical fixed cover that installs additional in the step band driving gear central shaft hole sector to be fixed on the active rotating shaft just as step band driving gear, press to be fixed on sector at an end of conical fixed cover then just as the gland on the step band driving gear by sector.

3, the drive unit of the synchronous band of employing double cog arc according to claim 1, it is characterized in that, in the fixedly installing of sector just as two follower block bearings in the axial aperture of step With a driven gear, be between these two follower block bearings, to add the stop collar that tightly is enclosed within outside the driven circular shaft, and therein the outer end of a follower block bearing press be fixed on sector just as the step with the gland on the driven gear teeth; Driven circular shaft two ends are fixing in the perforate on the support dual-side, is at setting sleeve that is fixed in the side perforate of the tight cover of driven circular shaft one end, presses respectively to be fixed on the gland on the support at driven circular shaft two ends then.

4, the drive unit of the synchronous band of employing double cog arc according to claim 1, it is characterized in that, two steamboat block bearings fixing in the perforate on the support dual-side, be to take one of them steamboat block bearing directly is fixed in the perforate on support one side, and between this steamboat block bearing and sector are just as step band small gear, add the stop collar that tightly is enclosed within the steamboat rotating shaft, and another steamboat block bearing is to be fixed on earlier in the bearing gland, then this bearing gland is fixedly set in the axial aperture on another side of support.

5, the drive unit of the synchronous band of employing double cog arc according to claim 1, it is characterized in that, the single cog arc is synchronously with bottom fixing on the strip sheet metal, be to offer a notch in strip sheet metal upper edge strip direction, be with the bottom tightly to be embedded in this notch synchronously the single cog arc then, and press respectively to be fastened on the press strip of two strips on the sheet metal with both sides synchronously at the single cog arc.

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