CN206305540U - The convenient assembly and disassembly knife system of gate shears - Google Patents

Abstract

The utility model discloses a kind of convenient assembly and disassembly knife system of gate shears,The utility model shears the shape and corresponding bolt of two screwed holes changed on tool rest and upper shear knife on most side on script,So that still rapid when knife is filled,And it is also still rapid when knife is torn open,It is still the action for tightening bolt of workman's custom during dress knife,But the design of novelty shears tool rest and upper shear knife when knife is torn open because both new designs of structure and part are not departed from after enabling bolt of the workman on most side is tightened so that going up,Do not hold in the palm manually,Coordinate reserved tool changing notch again,Take away the separation for realizing shearing tool rest and upper shear knife in the locking post on circular termination for hanging over steel wire rope,And steel wire rope and hinge remain to persistently use after knife is torn open,Next time is again to be capable of achieving by the rectangular channel of upper shearing tool rest and the cavity of upper shear knife before dress knife；The utility model structure is novel, simple to operate, and assembly and disassembly knife is all more rapidly convenient.

Description

The convenient assembly and disassembly knife system of gate shears

Technical field

The utility model is related to a kind of convenient assembly and disassembly knife system of gate shears.

Background technology

At present, the blade of gantry cutter such as Q91-800 gate shearses is heavier, installs relatively time-consuming with dismounting, and efficiency is low Under, how to design that a assembly and disassembly knife is all rapid convenient, it is a problem to reduce the convenient assembly and disassembly knife system of artificial gate shears.

Utility model content

The technical problem that the utility model is mainly solved is, there is provided a kind of convenient assembly and disassembly knife system of gate shears, and dress knife is torn open Knife all rapidly, and in dress knife, tear open in the operation of knife and only to tear a step more than knife open than original dress knife, be but not required to when tearing knife open artificial Hold.

The utility model solves the technical scheme that its technical problem used：The convenient assembly and disassembly knife system of gate shears, including Reserved tool changing notch, upper shearing tool rest and upper shear knife that gantry cutter frame both sides are provided with, the two of the upper shearing tool rest Side is respectively provided with first rectangular channel, and that end in the middle part of the close upper shearing tool rest of the first rectangular channel is provided with one and the The second rectangular channel that one rectangular channel is communicated, the width of the width more than the first rectangular channel of the second rectangular channel, the width of the first rectangular channel Degree slightly larger than steel wire rope diameter, the second rectangular channel on upper shear knife length direction set one and the second rectangle The cavity in concave that groove is communicated；The length and width of the second rectangular channel and the length and width of hinge match, and one end of steel wire rope is fixed It is connected on hinge, in annular shape, locking post is hung by with the locking integrally formed crotch of post for the termination of the other end of steel wire rope In steel wire rope on circular termination, locking post is made up of metal material, engage post cylinder with diameter greater than the first square The width of shape groove, height and the height in the middle part of hinge of the center section of cavity match, and the entire length and height of cavity are The size for allowing hinge to be flipped up, upper shear knife is tightened on upper shearing tool rest by several bolts, the middle part of cavity Underface is the side screwed hole for being arranged on shearing tool rest, and the side screwed hole is near the side of upper shearing tool rest, the width of hinge Aperture of the degree less than side screwed hole；Nut is fixedly installed below the hinge and puts mechanism, the nut puts mechanism to be included One bottom surface is provided with the cylindrical connecting plate being fixed on below hinge of cylindrical blind hole, the cylindrical blind hole Hole wall on be installed with stopper, on the lateral wall of the nut matching be provided with prodger corresponding with stopper, the protrusion One end of part is hinged on nut, and the other end of prodger is connected in the groove set on nut lateral wall by spring, The ring baffle for preventing nut from dropping, the annular gear are additionally provided near the circumference of the cylindrical blind hole of the bottom of connecting plate Plate is integrally formed with connecting plate, the aperture of the external diameter less than side screwed hole of the cylindrical connecting plate；It is arranged on shear knife On the screwed hole below the screwed hole of side be shaped as the large cylindrical hole narrowing toward each end cylindrical hole in middle part, it is described large cylindrical The aperture in hole is more than the length of hinge, and the inwall in large cylindrical hole does not set internal thread, and the inwall of roundlet cylindrical hole is provided with and bolt The internal thread of outer wall external screw thread matching.So simply slightly change on the upper shearing tool rest of original gate shears and upper shear knife It is dynamic, that is, rapid-assembling/disassembling knife is realized, specific operating procedure is as follows：Hinge is first put into the second rectangular channel before dress knife（Due to The size of two rectangular channels is matched with the size of hinge, therefore hinge is being put into rear position very just）In, while the steel wire being connected with hinge Rope is put into the first rectangular channel（At this moment steel wire rope does not hang tag also only post in circular termination, and in order to ensure by hinge Exposing in the side of upper shearing tool rest in circular termination for steel wire rope after the second rectangular channel is put into, the length of steel wire rope is longer than The length of the first rectangular channel plus the second rectangular channel length along with side screwed hole top at the top of large cylindrical hole away from From）, the hinge that then will have been inserted in the second rectangular channel by instruments such as shift forks dialed in cavity, and post at this moment will be engaged again Hang on the termination in annular shape of steel wire rope（For the hinge for preventing the preponderance for engaging post from will insert cavity is pulled to second Rectangular channel, can set an elastic clip and clamp steel wire rope at the close upper shearing tool rest side of the first rectangular channel, certainly, if The material selection for engaging post is properly that weight is not weighed and will not pulled out without this setting hinge）, afterwards with former dress knife Equally, all bolts are tightened will go up shearing tool rest and upper shear knife act conjunctively to complete dress knife.

As the further improvement of the convenient assembly and disassembly knife system of the utility model gate shears, near the two of upper shearing tool rest side The top of individual bolt is in ladder circle cylindricality, and the outer surface of the less cylinder of external diameter at the top of bolt is provided with and nut matching External screw thread, the cylindrical outer surface that the external diameter of bolt is larger is provided with the external screw thread matched with side screwed hole.Such setting makes The connection of bolt and cylindrical connecting plate is realized after two bolts on most side are screwed into when must fill knife, due to stopper and The cooperation of prodger, when bolt is twisted, the segment distance of nut rotation one cannot be rotated further by after being abutted to stopper and prodger, bolt Can only be screwed into nut, add nut and be arranged in circular blind hole；Nut is with bolt reversion when tearing knife open, and is dashed forward when inverting In going out part and due to the presence of stopper the elastic force of spring being overcome to collapse into groove, so during bolt continues to turn, Bolt is moved downward because the screw thread with side screwed hole coordinates, and nut can only then be rotated in circular blind hole, and by In moving downward for bolt, hinge overcomes the torsion of torsion spring to pack up to decline with the decline of bolt into side screwed hole, until Hinge is dropped down onto in large cylindrical hole, and the torsion spring of hinge discharges elastic force and flare up original state without resistance（Tabular）, at this moment after Continuous sequentially to unscrew whole bolts until to the bolt on the most side of another side, the bolt on both sides, will not be due to due to identical setting Whole unscrewing for bolt and blade needs people to hold（Because now upper shearing tool rest and upper shear knife by hinge, steel wire rope and Locking post be connected to, not locking post taken down from steel wire rope can due to engage post size more than the first rectangular channel size because This steel wire rope is tight, and upper shearing tool rest and upper shear knife are ined succession by steel wire rope, are held without people）As long as at this moment taking away extension Locking post on a steel cord is to be capable of achieving by the reserved tool changing notch that frame both sides are provided with outwards to send out upper shear-blade, The scheme being more highly preferred to is that the length of steel wire rope is longer again, and upper shear knife is suspended in by steel wire rope after so unscrewing whole bolts That, operative employee by one end be raised to reserved tool changing notch by blade move to reserved tool changing notch take away again it is real by two locking posts Now tear knife open.Also whole bolts dare not be unscrewed rapidly with needing people to hold in the past（Worry that all unscrew blade drops quickly）'s Tear knife process open to compare, speed improves quite a lot of, and dress knife tears knife step open almost and as before, it is only many when filling knife and tearing knife open One step.And upper shear knife after the locking post in circular termination of steel wire rope is taken away will be hung over and lose constraint, spiral shell Bolt, hinge and the steel wire rope upper shearing tool rest as upper shear knife leaves, again pull downward on bolt after pulling down shear knife, hinge Then overcome elastic force to pack up, continue to pull down and cut in the bolt during bolt realizes the blade that will be pulled down, hinge and steel wire rope pull-off Cutting knife, the bolt of pull-out, hinge and steel wire rope are by further treatment（Nut is manually specially pinned on the other hand, continues to press on the other hand The separation of bolt and hinge is realized according to the direction rotating bolt loosered a bolt when tearing knife open before, it is follow-up can be fixedly connected again The hinge for steel wire rope is put into continuation dress knife use in the second rectangular channel）It is again sustainable to circulate for follow-up dress knife, realize this The sustainable utilization of device.

As the further improvement of the convenient assembly and disassembly knife system of the utility model gate shears, cylindrical blind hole inner ring winding It is equipped with two row's rollers, the thickness of the vertical distance slightly larger than nut of two rows roller.It is such to be disposed to ensure twisting During loose bolt reversely stubborn bolt when nut be connected on bolt（Nut is reduced to the resistance of bolt, can so prevent nut with The relative rotation of bolt, also for the stabilization of the connection for ensureing nuts and bolt）, nut（Rotated together with bolt, relative to Bolt, nut transfixion）Only rotated in cylindrical blind hole.

Used as the further improvement of the convenient assembly and disassembly knife system of the utility model gate shears, prodger is hinged on the portion on nut Dividing to be additionally provided with prevents prodger from rotating excessive limiting section due to spring force.Even if such setting ensures prodger due to bullet The elastic force of spring remains on holding one and opens and open not too much the lateral wall for becoming backward against nut.

Used as the further improvement of the convenient assembly and disassembly knife system of the utility model gate shears, hinge is by the first hinge, second Hinge, torsion spring, axle and locking component are constituted, and Upper shaft sleeve and Lower shaft sleeve are set on first hinge, in the Upper shaft sleeve Axis hole be blind hole, axis hole in the Lower shaft sleeve is ladder circle cylindricality through hole, is equipped with rank with the first hinge Locking component in the pluggable Lower shaft sleeve of terraced cylinder, the torsion spring is provided with and the integrally formed extension rod of torsion spring, described the One hinge is provided with the rectangular channel for stopping extension rod, is further respectively had on the Upper shaft sleeve and Lower shaft sleeve and is integrally formed with axle sleeve Limiting plate；The head and the tail of the torsion spring are respectively provided with an extension rod, and two hollow cylinders and stop are set on second hinge The rectangular channel of extension rod, the size of the circular hole of hollow cylinder matches with the size of the diameter of axle, the torsion spring set on axle with Axle is arranged in Upper shaft sleeve, Lower shaft sleeve and hollow cylinder together, and the first hinge and the second hinge are rotatably connected by axle Connect；Into a ladder, the axis hole of Upper shaft sleeve is correspondingly arranged into the shape matched with axle on the top of the axle.Such setting ensure that The fixation of axle, cylindrical connecting plate is the lower section for being fixedly connected on axle, though axle fixation cannot be rotated, the first hinge, Two hinges can be relatively rotated；The installation process of hinge is as follows：By the first hinge, the second hinge, torsion spring according to final The appearance of hinge assembling shaping is set, and axle upward axle sleeve direction insertion from the axis hole of Lower shaft sleeve, axle is sequentially passed through in Lower shaft sleeve Axis hole, the hollow cylinder near Lower shaft sleeve of the second hinge, torsion spring, the hollow cylinder near Upper shaft sleeve of the second hinge Until the top of axle（I.e. stepped top）Insert in the axis hole of Upper shaft sleeve, then locking component is inserted the ladder circle of Lower shaft sleeve The installation of hinge is completed in the axis hole of cylindricality shape of through holes.The setting of this hinge causes that hinge is to open in normal state That is tabular（Due to the presence of limiting plate, even if therefore have the torsion of torsion spring, hinge is in 180 ° of tabular）, and closed first Then packed up when page portion and the second hinge stress, that is, coordinate foregoing bolt to move downward.

Used as the further improvement of the convenient assembly and disassembly knife system of the utility model gate shears, the aperture of side screwed hole is more than other The screwed hole for connecting upper shear knife and upper shearing tool rest.Correspondingly, the bolt for coordinating with side screwed hole also selects big straight Footpath size, although so so that all for tightening the size disunity of the bolt that tool rest and upper shear knife are sheared in connection, But also the installation process not to workman is made troubles, because big bolt correspondence is most in upper while screwed hole, and so also just In the hinge that can select big specification, it is ensured that unscrewing all bolts in middle part（Remove outside two bolts on most side）Hinge afterwards Blade can be held.

Used as the further improvement of the convenient assembly and disassembly knife system of the utility model gate shears, stopper and prodger are cut in level Face is shaped as rectangle or triangle.The selection of its shape is not limited to both, or two relative similar ox horn shapes Shape, as long as ensure that stopper and prodger can mutually block other side when tightening being screwed into nut with ensureing bolt.

As the further improvement of the convenient assembly and disassembly knife system of the utility model gate shears, all rollers above nut Roller axle be interconnected in center a bit；The lower surface that the length of the bolt matched with side screwed hole is equal to roller axle is extremely set The distance of the bottom of the screwed hole below the screwed hole of side on upper shear knife.Such setting can ensure bolt top It is also just bolt head when pushing up roller axle（That is the non-screw portion of bolt）Push up the outer surface of roundlet cylindrical hole.

The utility model structure is novel, simple to operate, and assembly and disassembly knife is all more rapidly convenient；Technological transformation easily and technological transformation low cost, Simply slightly changed on the upper shearing tool rest of original gate shears and upper shear knife, that is, realize rapid-assembling/disassembling knife；With it is conventional Needing people to hold rapidly dare not also compare the knife process of tearing open that whole bolts are unscrewed, and speed improves quite a lot of, and dress knife tears knife step open It is rapid almost and as before, only many steps when filling knife and tearing knife open；And the utility model can circulation continuous use.

Brief description of the drawings

Fig. 1 is an interception frame part for the convenient embodiment one of assembly and disassembly knife system embodiment one of the utility model gate shears Schematic diagram；

Fig. 2 is the upper shearing tool rest and the structural representation of upper shear knife part in the utility model embodiment one；

Fig. 3 is the enlarged diagram of the first rectangular channel and the second rectangle slot part in Fig. 2；

Fig. 4 is the enlarged diagram of locking post part in Fig. 2；

Fig. 5 is the enlarged diagram of hinge, side screwed hole and threaded bore portions in Fig. 2；

Fig. 6 is the front view that Fig. 5 is not screwed into nut plus bolt but bolt top；

Fig. 7 is the view that Fig. 6 bolts top is screwed into nut；

Fig. 8 is the decomposing schematic representation of bolt, hinge, steel wire rope, side screwed hole and threaded bore portions in Fig. 2；

Fig. 9 be Fig. 8 in hinge with the decomposing schematic representation moved downwardly in screwed hole of bolt；

Figure 10 be Fig. 8 in hinge with the decomposing schematic representation moved downwardly in large cylindrical hole of bolt；

Figure 11 is the enlarged diagram of the axle of hinge in Fig. 5；

Figure 12 is the front view of Figure 11；

Figure 13 is the upward view after removal roller, the ring baffle of Figure 12；

Figure 14 is the view when nut of Figure 13 is reversely rotated；

Figure 15 is the upward view after row's roller, ring baffle and nut under the removal of Figure 12；

Figure 16 is the enlarged diagram of prodger peripheral part in Figure 13；

Figure 17 is the enlarged diagram of limiting section peripheral part in Figure 16；

Figure 18 is the enlarged diagram of the part of the axle of the hinge in embodiment of the present utility model three；

Figure 19 is the schematic diagram of the circular blind hole part in the utility model embodiment two；

Figure 20 is the view when nut of Figure 19 is reversely rotated；

Figure 21 is the decomposing schematic representation of hinge in Fig. 2；

Figure 22 is the view after the hinge installation of Figure 21；

Figure 23 is the upward view of the first hinge part in Figure 22；

Figure 24 is the top view of Figure 21 axis；

Figure 25 is the schematic diagram for installing hinge；

Figure 26 is the upward view after the lower row's roller of Figure 18 removals, ring baffle and nut.

In figure：1st, frame 2, reserved tool changing notch 3, upper shearing tool rest 4, upper shear knife 5, the first rectangular channel 6th, the second rectangular channel 7, steel wire rope 8, cavity 9, hinge 9-1, the first hinge 9-2, the second hinge 9-3, Torsion spring 9-3-1, extension rod 9-4, axle 9-5, locking component 9-6, Upper shaft sleeve 9-7, Lower shaft sleeve 9-8, rectangular channel 9-9, limiting plate 9-10, hollow cylinder 10, locking post 11, crotch 12, side screwed hole 13, cylindrical blind hole 14th, connecting plate 15, stopper 16, nut 17, prodger 18, spring 19, groove 20, ring baffle 21, Screwed hole 21-1, large cylindrical hole 21-2, roundlet cylindrical hole 22, bolt 23, roller 24, limiting section 25, rolling Axis of a cylinder.

Specific embodiment

Clearly understand to have to technical characteristic of the present utility model, purpose and effect, now compare accompanying drawing detailed Describe bright specific embodiment of the present utility model in detail.

Embodiment one：

As shown in Fig. 1 to Figure 17（For ease of illustrating, bolt 22 not shown in Fig. 2）, the convenient assembly and disassembly knife system of gate shears, bag Include reserved tool changing notch 2, upper shearing tool rest 3 and upper shear knife 4, the upper shear knife that the both sides of gantry cutter frame 1 are provided with The two sides of seat 3 are respectively provided with first rectangular channel 5, and that end at the close upper middle part of shearing tool rest 3 of the first rectangular channel 5 sets There is the second rectangular channel 6 that and the first rectangular channel 5 are communicated, the width of the second rectangular channel 6 is more than the width of the first rectangular channel 5, The width of the first rectangular channel 5 slightly larger than steel wire rope 7 diameter, the second rectangular channel 6 on the length direction of upper shear knife 4 The cavity 8 in concave that one and the second rectangular channel 6 are communicated is set；The length and width of the second rectangular channel 6 and the length and width phase of hinge 9 Matching, one end of steel wire rope 7 is fixedly connected on hinge 9, and in annular shape, locking post 10 leads to for the termination of the other end of steel wire rope 7 Cross and hung on the termination in annular shape of steel wire rope 7 with the locking integrally formed crotch 11 of post 10, locking post 10 is by metal material It is made, the width with diameter greater than the first rectangular channel 5 of the cylinder of post 10 is engaged, in the width and hinge 9 of the center section of cavity 8 The height in portion matches, and the entire length and height of cavity 8 are the size for allowing hinge 9 to be flipped up, if upper shear knife 4 passes through A dry bolt 22 is tightened on shearing tool rest 3, and the underface at the middle part of cavity 8 is the side screw thread for being arranged on shearing tool rest 3 Hole 12, the side screwed hole 12 is near the side of upper shearing tool rest 3, the aperture of the width less than side screwed hole 12 of hinge 9；It is described The lower section of hinge 9 is fixedly installed nut 16 and puts mechanism, and the nut 16 puts mechanism includes that a bottom surface is provided with cylinder not The cylindrical connecting plate 14 for being fixed on the lower section of hinge 9 of through hole 13, it is fixed on the hole wall of the cylindrical blind hole 13 There is stopper 15, matching is provided with prodger corresponding with stopper 15 17, the prodger 17 on the lateral wall of the nut 16 One end be hinged on nut 16, the other end of prodger 17 is connected to the groove set on the lateral wall of nut 16 by spring 18 In 19, the annular gear for preventing nut 16 from dropping is additionally provided near the circumference of the cylindrical blind hole 13 of the bottom of connecting plate 14 Plate 20, the ring baffle 20 is integrally formed with connecting plate 14, and the external diameter of the cylindrical connecting plate 14 is less than side screwed hole 12 aperture；The screwed hole 21 positioned at the lower section of side screwed hole 12 being arranged on shear knife 4 to be shaped as middle part large cylindrical The aperture of hole 21-1 narrowing toward each end cylindrical holes 21-2, the large cylindrical hole 21-1 more than hinge 9 length, large cylindrical hole The inwall of 21-1 does not set internal thread, and the inwall of roundlet cylindrical hole 21-2 is provided with the internal thread matched with the outer wall external screw thread of bolt 22. Two tops of bolt 22 near upper shearing tool rest 3 side are in ladder circle cylindricality, the less circle of external diameter at the top of bolt 22 The outer surface of cylindricality is provided with the external screw thread matched with nut 16, and the cylindrical outer surface that the external diameter of bolt 22 is larger is provided with and side The external screw thread of the matching of screwed hole 12.Two row's rollers 23 are surrounded with cylindrical blind hole 13, two rows roller 23 Thickness of the vertical distance slightly larger than nut 16.The part that prodger 17 is hinged on nut 16 be additionally provided with prevention prodger 17 due to The elastic force of spring 18 rotates excessive limiting section 24.As shown in Figure 21 to 25, hinge 9 is by the first hinge 9-1, the second hinge 9- 2nd, torsion spring 9-3, axle 9-4 and locking component 9-5 are constituted, and Upper shaft sleeve 9-6 and Lower shaft sleeve 9-7 is set on the first hinge 9-1, Axis hole in the Upper shaft sleeve 9-6 is blind hole, and the axis hole in the Lower shaft sleeve 9-7 is ladder circle cylindricality through hole, is closed with first Page portion 9-1 is equipped with the locking component 9-5 in the pluggable Lower shaft sleeve 9-7 in ladder circle cylindricality, and the torsion spring 9-3 is provided with Extension rod 9-3-1 integrally formed with torsion spring 9-3, the first hinge 9-1 are provided with the rectangular channel for stopping extension rod 9-3-1 9-8, further respectively has limiting plate 9-9 integrally formed with axle sleeve on the Upper shaft sleeve 9-6 and Lower shaft sleeve 9-7；The torsion spring 9-3 Head and the tail be respectively provided with an extension rod 9-3-1, set on the second hinge 9-2 two hollow cylinder 9-10 and stop extension rod The rectangular channel 9-8 of 9-3-1, size and the size of the diameter of axle 9-4 of the circular hole of hollow cylinder 9-10 match, the torsion spring 9- 3 are enclosed within axle 9-4 and are arranged in Upper shaft sleeve 9-6, Lower shaft sleeve 9-7 and hollow cylinder 9-10 together with axle 9-4, the first hinge 9- 1 and second hinge 9-2 rotatably connected by axle 9-4；The top of the axle 9-4 into a ladder, the axis hole of Upper shaft sleeve 9-6 It is correspondingly arranged into the shape matched with axle 9-4.The aperture of side screwed hole 12 is more than other for connecting shear knife 4 and above cutting The screwed hole 21 of Cutter apron 3.Center is interconnected in positioned at the roller axle 25 of all rollers 23 of the top of nut 16 a bit；With side Screwed hole 12 matching bolt 22 length be equal to roller axle 25 lower surface to be arranged on upper shear knife 4 positioned at side screw thread The distance of the bottom of the screwed hole 21 of the lower section of hole 12.

Embodiment two：

Difference with embodiment one is：As shown in Figure 19 to Figure 20, stopper 15 and prodger 17 are in horizontal cross-section It is shaped as rectangle or triangle.

Embodiment three：

Difference with embodiment two is：As shown in Figure 18, Figure 26, positioned at the roller of all rollers 23 of the top of nut 16 Axle 25 is simultaneously not connected to converge at center a bit.

Above content is to combine specific optimal technical scheme further detailed description of the utility model, it is impossible to Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all regarded To belong to protection domain of the present utility model.

Claims (8)

1. the convenient assembly and disassembly knife system of gate shears, it is characterised in that including the reserved tool changing groove that gantry cutter frame both sides are provided with Mouth, upper shearing tool rest and upper shear knife, the two sides of the upper shearing tool rest are respectively provided with first rectangular channel, the first rectangular channel It is close upper shearing tool rest in the middle part of that end be provided with the second rectangular channel that and the first rectangular channel are communicated, the second rectangular channel Width of the width more than the first rectangular channel, the width of the first rectangular channel slightly larger than steel wire rope diameter, the second rectangular channel The cavity in concave that one and the second rectangular channel are communicated is set on upper shear knife length direction；Second rectangular channel Length and width and the length and width of hinge match, one end of steel wire rope is fixedly connected on hinge, and the termination of the other end of steel wire rope is in Annular shape, locking post by with the locking integrally formed crotch of post hang over steel wire rope on circular termination, locking post by Metal material is made, and engages the width with diameter greater than the first rectangular channel of the cylinder of post, height and the conjunction of the center section of cavity Height in the middle part of page matches, and the entire length and height of cavity are the size for allowing hinge to be flipped up, and upper shear knife passes through Several bolts are tightened on shearing tool rest, and the underface at the middle part of cavity is the side screwed hole for being arranged on shearing tool rest, The side screwed hole is near the side of upper shearing tool rest, the aperture of the width less than side screwed hole of hinge；The lower section of the hinge Nut is fixedly installed and puts mechanism, the nut puts mechanism includes that what a bottom surface was provided with cylindrical blind hole is fixed on conjunction Cylindrical connecting plate below page, is installed with stopper, the outside of the nut on the hole wall of the cylindrical blind hole Matching is provided with prodger corresponding with stopper on wall, and one end of the prodger is hinged on nut, the other end of prodger It is connected in the groove set on nut lateral wall by spring, it is attached in the circumference of the cylindrical blind hole of the bottom of connecting plate The ring baffle for preventing nut from dropping closely is additionally provided with, the ring baffle is integrally formed with connecting plate, the cylindrical connection Aperture of the external diameter of plate less than side screwed hole；The screwed hole below the screwed hole of side that is arranged on shear knife is shaped as The large cylindrical hole narrowing toward each end cylindrical hole in middle part, the length of the aperture more than hinge in the large cylindrical hole, large cylindrical hole Inwall does not set internal thread, and the inwall of roundlet cylindrical hole is provided with the internal thread matched with bolt outer wall external screw thread.

2. the convenient assembly and disassembly knife system of gate shears according to claim 1, it is characterised in that near upper shearing tool rest side Two tops of bolt are in ladder circle cylindricality, and the outer surface of the less cylinder of external diameter at the top of bolt is provided with and is matched with nut External screw thread, the larger cylindrical outer surface of the external diameter of bolt is provided with the external screw thread matched with side screwed hole.

3. the convenient assembly and disassembly knife system of gate shears according to claim 1, it is characterised in that in the cylindrical blind hole It is surrounded with two row's rollers, the thickness of the vertical distance slightly larger than nut of two rows roller.

4. the convenient assembly and disassembly knife system of gate shears according to claim 1, it is characterised in that prodger is hinged on nut Part is additionally provided with and prevents prodger from rotating excessive limiting section due to spring force.

5. the convenient assembly and disassembly knife system of gate shears according to claim 1, it is characterised in that the hinge is by the first hinge Portion, the second hinge, torsion spring, axle and locking component are constituted, and set Upper shaft sleeve and Lower shaft sleeve on first hinge, it is described on Axis hole in axle sleeve is blind hole, and the axis hole in the Lower shaft sleeve is ladder circle cylindricality through hole, is equipped with the first hinge Have a locking component in the pluggable Lower shaft sleeve in ladder circle cylindricality, the torsion spring be provided with the integrally formed extension rod of torsion spring, First hinge is provided with the rectangular channel for stopping extension rod, is further respectively had on the Upper shaft sleeve and Lower shaft sleeve and axle sleeve one Body formed limiting plate；The head and the tail of the torsion spring are respectively provided with an extension rod, and two hollow cylinders are set on second hinge With the rectangular channel for stopping extension rod, the size of the circular hole of hollow cylinder matches with the size of the diameter of axle, and the torsion spring set exists It is arranged in Upper shaft sleeve, Lower shaft sleeve and hollow cylinder together with axle on axle, the first hinge and the second hinge can be turned by axle Dynamic connection；Into a ladder, the axis hole of Upper shaft sleeve is correspondingly arranged into the shape matched with axle on the top of the axle.

6. the convenient assembly and disassembly knife system of gate shears according to claim 1, it is characterised in that the aperture of the side screwed hole is big It is used to connect the screwed hole of upper shear knife and upper shearing tool rest in others.

7. the convenient assembly and disassembly knife system of gate shears according to claim 1, it is characterised in that the stopper and prodger exist Horizontal cross-section is shaped as rectangle or triangle.

8. the convenient assembly and disassembly knife system of gate shears according to claim 3, it is characterised in that all rollings above nut The roller axle of post is interconnected in center a bit；The length of the bolt matched with side screwed hole is equal to the lower surface of roller axle to setting Put the distance of the bottom of the screwed hole below the screwed hole of side on upper shear knife.