CN2272344Y

CN2272344Y - Novel clutch brake board-shearing machine

Info

Publication number: CN2272344Y
Application number: CN 96232448
Authority: CN
Inventors: 何平; 潘世宏; 储伯生
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-07-31
Filing date: 1996-07-31
Publication date: 1998-01-14
Anticipated expiration: 2006-07-31

Abstract

The utility model provides a plate shearing machine. The utility model has a clutch and brake device 11, one end of an L rocking rod 14 is connected with the controlling member 15 of the L rocking rod, and the other end passes through a sliding hole on a clutch and brake eccentric wheel 12. The crescent cambered face of the end face of the L rocking rod is in sliding connection with the circular cambered face of the end face of the inner ring of a clutch ring 13 on an output wheel 20 or is shifted into the symmetrical gaps of the end face of the clutch ring. The end face of the outer circle of the clutch and brake eccentric wheel 12 is in half encirclement and contact with a brake belt 16, and the both ends of the brake belt 16 are connected with the positioning element 17. The utility model has the advantages of novel structure, small size, beautiful appearance, convenient start and brake, low manufacture cost, etc. The utility model can be widely used in sheet metal working industries of motors, electric appliances, vehicle maintenance and hardware manufacture, etc.

Description

Novel clutch and brake plate shearing machine

The utility model relates to a kind of plate shearing machine of shearing plate, be widely used in machinery, electric, auto repair, light industry manufacturing and other all Sheet Metal Processing industries.

Domestic plate shearing machine commonly used is a kind of twin shaft underdrive plate shearing machine at present.This plate shearing machine is equipped with drive unit in its two wallboards outside, the transmitter shaft of drive unit flying wheel, drive gear wheel and the eccentric power transmission shaft that is equipped with clutch again,, shear with the bottom knife that is fixed on the workbench by the cutter of connecting rod drive shear beam.This machine actuating device is big in wallboard both sides floor space, adopts two major axis, and the diameter of axle is thick, and the flying wheel that in addition is contained on the power transmission shaft will have enough inertia, and the quality of flying wheel is also bigger, so this machine metal material consumption is also many.In addition, the clutch of this machine and brake apparatus are independent respectively to be provided with, and the disengagement of clutch or the operation of combination and braking are respectively by manually operating.

The purpose of this utility model provides a kind of compact conformation.In light weight, handling safety, novel clutch and brake plate shearing machine easily, it can make the disengagement of clutch or the action of combination and the disposable interlock of action of braking finish.

The purpose of this utility model can realize by following technical proposal.Above-mentioned novel clutch and brake plate shearing machine comprises: motor 1, by one pair of belt pulley 18, pinion 19, gear 2 workbench, 3 two ends and wallboard 5a that output wheel 20 is formed, 5b connects, workbench 3 one sides are equipped with bottom knife 4, cutter 7 is housed on the shear beam 6, the guide rail at its two ends and wallboard 5a, the guide-track groove of 5b is slidingly connected, shear beam 6 is through connecting rod 8a, 8b and eccentric wheel 9a, 9b connects, eccentric wheel 9a, 9b is contained on the power transmission shaft 10, power transmission shaft 10 1 ends are connected with a wallboard 5a, its other end stretches out output wheel 20 and the clutch brake 11 that other end wallboard 5b is equipped with gear 2, its feature is: above-mentioned clutch brake 11 is by clutch and brake eccentric wheel 12, clutch circle 13, L fork 14, L fork control member 15, brake band 16 and keeper 17 are formed, the nose circle face has symmetric windows in the clutch circle 13, be packed in the lateral groove of output wheel 20, with its groove one side inwall looping chute, L fork 14 1 ends are connected with L fork control member 15, L fork 14 other end end sides are the crescent moon cambered surface, pass slide opening on the clutch and brake eccentric wheel 12, insert the annular groove of output wheel 20, the cambered surface of nose circle faces is slidingly matched in its end one side crescent moon cambered surface and the clutch circle 13, and perhaps its end sides meniscus level corner angle change on clutch circle 13 inner faces in the breach; At this moment, output wheel 20, L fork 14, clutch and brake eccentric wheel 12, power transmission shaft 10 running that is connected as a single entity.Above-mentioned clutch and brake eccentric wheel 12 sides are equipped with round platform 21, round platform 21 has the fan groove that is used for 14 swings of L fork, clutch and brake eccentric wheel 12 cylindrical end faces contact with brake band l6 semi-surrounding, or tighten or loosen, brake band 16 1 ends are connected with keeper 17, and its other end is connected with elastic limit device 22 on being contained in keeper 17.When the flange of clutch and brake eccentric wheel 12 was at a distance of keeper 17 far points, brake band 16 was the tightest with clutch and brake eccentric wheel 12 cylindrical anchor ears, played braking action, and when its flange during from keeper 17 near points, brake band 16 unclamps with clutch and brake eccentric wheel 12 outer rings; Above-mentioned L fork control member 15 is made up of extension spring 23, push rod 24, push rod spring 25, electromagnet 26, extension spring 23 1 ends are connected with the L fork 14 that inserts above-mentioned clutch and brake eccentric wheel 12 slide openings, extension spring 23 other ends are connected with turnbuckle on the round platform 21 that is contained in clutch and brake eccentric wheel 12, push rod 24 1 ends are gone up moving fulcrum 27 with wallboard 5a and are connected, push rod 24 other ends are with L fork 14 apical graftings or separate, and push rod 24 sides are connected with electromagnet 26 with push rod spring 25.

The advantage that novel clutch and brake plate shearing machine of the present utility model has: clutch brake is simple in structure in the complete machine, especially this clutch brake merges into a single whole clutch and brake, existing transmission clutch function, can play braking function again, upper tool post is stopped on the dead-centre position exactly.Therefore, complete machine structure novelty, compactness, little, the good looking appearance of volume, operating maintenance is convenient, low cost of manufacture, remarkable in economical benefits.

Below in conjunction with accompanying drawing embodiment of the present utility model is described further.

Fig. 1 is novel clutch and brake plate shearing machine structural representation;

Fig. 2 is a drive mechanism schematic diagram among Fig. 1;

Fig. 3 is clutch brake 11 structural representations among Fig. 2;

Fig. 4 is L fork 14 structural representations among Fig. 3.

Shown in Fig. 1 to 4, this machine gear 2 is made up of one pair of belt pulley 18a, 18b pinion 19 and output wheel 20, and after motor 1 started, motor 1 drove belt pulley 18, pinion 19 and output wheel 20.After electromagnet 26 energisings, electromagnet 26 overcomes the pulling force of push rod spring 25, push rod 24 separates with L fork 14, L fork 14 is subjected to the pulling force of extension spring 23, L fork 14 rotates to round platform 21 fan grooves one side on the clutch and brake eccentric wheel 12, L fork 14 end sides meniscus level corner angle change in the clutch circle 13 on the nose circle faces in the breach, the output wheel 20 of rotation L fork 14 on clutch circle 13 drives clutch and brake eccentric wheel 12, power transmission shaft 10, eccentric wheel 9a, 9b, connecting rod 8a, 8b, make shear beam 6 along wallboard 5a, 5b upper rail groove moves up and down, cutter 7 on the shear beam 6 and bottom knife 4 relative motions on the workbench 3 are sheared plate.After electromagnet 26 outages, push rod 24 is subjected to the pulling force of push rod spring 25, push rod 24 resets, push rod 24 withstands L fork 14 on the clutch and brake eccentric wheel 12, L fork 14 overcomes extension spring 23 pulling force and rotates to clutch and brake eccentric wheel 12 round platforms 21 fan groove opposite sides, L fork 14 end sides meniscus level corner angle withdraw from breach on the clutch circle 13 interior nose circle faces, slide along annular chutes in the clutch circle on output wheel 20 sides 13.Above-mentioned clutch and brake eccentric wheel 12 loses driving force, transmission eccentric wheel 12 outer ring flanges are more and more far away at a distance of keeper 17,16 pairs of clutch and brake eccentric wheel 12 brake force of brake band also strengthen gradually, until hugging clutch and brake eccentric wheel 12 fully, shear beam 6 accurately stops on the top dead-centre, can stop to shear plate.In order to guarantee that shear beam 6 is accurately stopping at peak, regulate brake band 16 and clutch and brake eccentric wheel 12 degrees of tightness easily, elastic limit device 22 is housed on the above-mentioned keeper 17 to be made up of gag lever post 28, stage clip 29, be equipped with convex shoulder in the middle of the gag lever post 28, the slide opening that gag lever post 28 1 ends pass on the keeper 17 is connected with brake band 16, the other end is with stage clip 29, stage clip 29 1 end apical grafting keepers 17, its other end and the bolt apical grafting that is packed in gag lever post 28 other ends.

Claims

1, a kind of novel clutch and brake plate shearing machine, it is made up of motor [1], gear [2], workbench [3], bottom knife [4], wallboard [5], shear beam [6], cutter [7], connecting rod [8], eccentric wheel [9], power transmission shaft [10] and the clutch brake [11] that is contained on the power transmission shaft [10], it is characterized in that, above-mentioned clutch brake [11] is by clutch and brake eccentric wheel [12], clutch circle [13], L fork [14], L fork control member [15], brake band [16] and keeper 17] to form, the interior nose circle face of clutch circle [13] has symmetric windows.Be packed in output wheel [20] lateral groove of gear [2], with its groove one side inwall looping chute, L fork [14] one ends are connected with L fork control member [15], its other end side is the crescent moon cambered surface, pass the annular groove that clutch and brake eccentric wheel [12] is gone up slide opening, stretched into output wheel [20], the cambered surface of its end one side crescent moon cambered surface and the interior nose circle face of clutch circle [30] is slidingly matched, and perhaps its end one side meniscus level corner angle change on clutch circle [13] the inner ring end face in the breach; Above-mentioned clutch and brake eccentric wheel [12] one sides have round platform [21], have the fan groove of L fork [14] swing on the round platform [21], clutch and brake eccentric wheel [12] cylindrical end face contacts with brake band [16] semi-surrounding, brake band [16] one ends are connected with keeper [17], its other end be contained in keeper [17] and go up elastic limit device [22] and be connected.

2, novel clutch and brake plate shearing machine according to claim 1, it is characterized in that: above-mentioned L fork control member [15] is by extension spring [23], push rod [24], push rod spring [25], electromagnet [26] is formed, extension spring [23] the one ends L fork [14] interior with inserting above-mentioned clutch and brake eccentric wheel [12] slide opening is connected, extension spring [23] other end is connected with bolt on the round platform [21] that is contained in above-mentioned clutch and brake eccentric wheel [12], push rod [24] one ends are gone up moving fulcrum [27] with wallboard [5] and are connected, push rod [24] other end is with L fork [14] apical grafting or separate, and its side is connected with electromagnet [26] with push rod spring [25].

3, novel clutch and brake plate shearing machine according to claim 1 and 2, it is characterized in that: above-mentioned keeper [17] is gone up elastic limit device [22] and is made up of gag lever post [28], stage clip [29], convex shoulder is arranged in the middle of the gag lever post [28], the one end passes keeper [17] slide opening and is connected with brake band [16], its other end is with stage clip [29], stage clip [29] one ends head on keeper [17], its other end and the bolt apical grafting that is packed on the gag lever post [28].