CN203304033U

CN203304033U - Cutter for crushing

Info

Publication number: CN203304033U
Application number: CN2013202724210U
Authority: CN
Inventors: 葛国英
Original assignee: YIXIAN YUECHI TECHNOLOGY ELECTRONIC Co Ltd
Current assignee: YIXIAN YUECHI TECHNOLOGY ELECTRONIC Co Ltd
Priority date: 2013-05-17
Filing date: 2013-05-17
Publication date: 2013-11-27
Anticipated expiration: 2023-05-17

Abstract

The utility model discloses a cutter for crushing. The cutter comprises a sliver-shaped cutter body and a connecting rod, wherein one end of the connecting rod is connected with a cutter rest; the other end of the connecting rod is in cross connection with the middle section of the cutter body. By utilizing the cutter with the structure, in a process that the cutter rest drives the cutter to rotate, a rapid quenching bar which is cooled and fed back and drops down inside a rapid quenching furnace can be cut through the cutter body, the rapid quenching bar is cut into magnetic powder, the single-time storage quantity of a collecting cylinder is increased, and therefore the single furnace yield of the rapid quenching furnace is improved; in addition, further crushing treatment in later procedures is not needed, so that the production period of neodymium iron boron magnetic powder is shortened.

Description

For broken cutter

Technical field

The utility model relates to NdFeB magnetic powder production equipment field, is specifically related to a kind of for broken cutter.

Background technology

Vacuum quick quenching furnace is widely used in NdFeB magnetic powder production, after its operation principle is the water-cooled roller contact of metal under molten condition and High Rotation Speed, be drawn as film and the fast quenching bar of rapid solidification formation strand shape, make the metal liquid disordered structure freeze, form amorphous or microstructure.The quick quenching band that rapid solidification forms falls into the quick quenching furnace bottom and arranges in aggregate tube after cooling dome is turned back, fast fringe band will be folded to form the wood shavings shape in aggregate tube.The space that the fast quenching bar of wood shavings shape takies is large, therefore in aggregate tube, the storing amount of single is few, and then affect single furnace output of quick quenching furnace, and from feeding operating difficulties aggregate tube, in subsequent handling, also need in addition to arrange separately one the fast quenching bar is carried out to broken operation, so the production cycle of NdFeB magnetic powder is long, efficiency is low.

Summary of the invention

The purpose of this utility model is to provide a kind of for broken cutter, can carry out effective fragmentation to the fast quenching bar after cooling turning back in quick quenching furnace, improves the single storing amount of aggregate tube, improves single furnace output of quick quenching furnace and the production cycle that shortens NdFeB magnetic powder.

For achieving the above object, the utility model has adopted following technical scheme: a kind of for broken cutter, it is characterized in that: cutter comprises cutter body and the connecting rod of strip shape, one end of connecting rod is connected with knife rest, and the other end of connecting rod forms cross-like with the stage casing of cutter body and is connected.

Cutter by said structure, in knife rest band cutter rotation process, cutter body will cut the cooling fast quenching bar fallen of turning back in quick quenching furnace, the fast quenching bar is cut into to magnetic, improve the single storing amount of aggregate tube, and then single furnace output of raising quick quenching furnace, need in subsequent handling, again not carry out in addition break process in addition, reduce the production cycle of NdFeB magnetic powder.

The accompanying drawing explanation

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

Fig. 2,3 is the utility model confined state schematic diagram;

Fig. 4 is the assembling schematic diagram of knife rest and rotating shaft;

Fig. 5 is the structural representation of housing.

The specific embodiment

The purpose of this utility model is to provide a kind of can carry out to the fast quenching bar after cooling turning back in quick quenching furnace effectively broken cutter, its scheme of taking as shown in Figure 1, a kind of for broken cutter, it is characterized in that: cutter 22 comprises cutter body 221 and the connecting rod 222 of strip shape, one end of connecting rod 222 is connected with knife rest 23, and the other end of connecting rod 222 forms cross-like with the stage casing of cutter body 221 and is connected.As shown in Figure 2,3, 4, it is a kind of occupation mode of the present utility model, namely by with housing 10, knife rest 23, rotating shaft 21, forming a breaker, on housing 10, offer charging aperture 11 and discharging opening, the corresponding layout of cooling dome material outlet on charging aperture 11 on housing 10 and quick quenching furnace, discharging opening on housing 10 is connected with the aggregate tube charging aperture, and the opening of charging aperture 11 points to consistent with the radial direction of rotating shaft 21.Cooling like this fast quenching bar of turning back radially falls in housing 10 along rotating shaft 21, rotating shaft 21 in housing 10 will rotate band movable knife rack 23 and cutter 22 rotations cut into magnetic fast by the fast quenching bar, then from material outlet, exports in aggregate tube and collects with further cooling.Aggregate tube just can store more material like this, further single furnace output of quick quenching furnace and the production cycle that shortens NdFeB magnetic powder.

During concrete enforcement, housing 10 is cylindric, and the shaft core direction of housing 10 and rotating shaft 21 parallels/overlaps and all is positioned at horizontal plane; The upper portion side wall of housing 10 arranges fast quenching bar charging aperture 11, lower sides arranges the discharging opening for the NdFeB magnetic powder discharging after fragmentation, and described discharging opening place is provided with screen cloth 12.By the size of adjustable screen 12 order numbers, thereby realize broken magnetic powder particle degree size is controlled, guarantee broken effect and meet different demands of producing the crushed particles degree.

For the effect that further improves break process, obtain even, tiny magnetic, in the utility model, cutter is preferably implemented according to following scheme, an end away from cutter body 221 on connecting rod 222 offers for knife rest 23, forming the connecting hole 223 be articulated and connected, and the hole core direction of described connecting hole 223 parallels with the length direction of cutter body 221; Perhaps the length direction of the hole core direction of connecting hole 223 and cutter body 221 is that two different surface beeline shapes are arranged and the angle of two different surface beelines is less than 90 °.The hole core direction of the connecting hole 223 of indication and the length direction of cutter body 221 are two different surface beelines, are all to regard the length direction of the hole core direction of connecting hole 223 and cutter body 221 as two straight lines.Described cutter body 221 is that an arc or folding shape louver boards form, cutter body 221 constitutes Y shape/beveled structure/T shape structure with connecting rod 222, in order to obtain best cutting and crushing effect, the cutter body 221 21 feedstock direction extended lines that rotate the formed surface of revolution and charging aperture 11 place's fast quenching bars around the shaft is crossing relation.Knife rest 23 is arranged on the periphery of a rotating shaft 21, rotating shaft 21 axially parallels with the hole core direction of connecting hole 223, knife rest 23 comprise that rotating shaft 21 two ends arrange respectively with its round plate fixed as one 231 and the straight-bar 232 that is connected two round plates 231, straight-bar 232 is along the uniform setting of outer rim hoop of two round plates 231, described cutter 22 is articulated and connected with straight-bar 232, specifically as shown in Figure 4,5.Preferably 21 one-tenth parallel shapes of straight-bar 232 and rotating shaft are arranged, be that straight-bar 232 forms mouse cage columnar structure with rotating shaft 21, and then on straight-bar 232, arrange respectively that the profile be articulated and connected with it is the cutter 22 of Y shape/T shape/umbrella shape, in rotating shaft 21 rotation processes, will be with cutter 22 to rotate like this, the fast quenching bar that drive enters in housing 10 21 rotates and cutting repeatedly around the shaft, make the fast quenching bar be cut into fast thin magnetic, the granularity magnetic that is less than screen cloth 12 mesh sizes just falls into aggregate tube and is collected with cooling like this.

During concrete enforcement, preferably adopt the Y-shaped cutter of profile 22, two louver boards that form cutter body 221 become 115～120 ° of angles to arrange.The cutter 22 that cutter 22 can arrange along the length direction of straight-bar 232 on a plurality of, adjacent straight-bars 232 is interleaved shape mounting arrangements along the length direction of straight-bar 232.Like this to avoid cutter 22 on adjacent straight-bar 232 to interfere and obtain the quick crashing effect of fast quenching bar the best when the cutting and crushing.

Because the rotation of rotating shaft 21 can drive the fast quenching bar and magnetic rotates in housing 10, and after rotating a period of time, will reach stable state, be that the angular speed that rotates of the interior all objects of housing 10 is consistent or be close, now cutter 22 just can't be effectively cuts and makes the magnetic after cutting to discharge from discharging opening to the fast quenching bar, therefore on the interior sidewall surface of described housing 10, be provided with flow-interfering bar 13, described flow-interfering bar 13 forms for the raised line that protrudes from housing 10 walls along housing 10 shaft core direction settings.Described flow-interfering bar 13 is arranged the shape setting along on housing 10 sidewalls of discharging opening both sides, being respectively, specifically as shown in Fig. 2,5.By flow-interfering bar 13 is set, the rotation of 13 pairs of fast quenching bars of flow-interfering bar and magnetic is interfered and destroys, and makes fast quenching bar and magnetic in housing 10 be the chaos state rotation, thereby prevents effective cutting of stable state and 22 pairs of fast quenching bars of assurance cutter.In addition flow-interfering bar 13 is arranged to the shape setting along on housing 10 sidewalls of discharging opening both sides, being respectively, the thin magnetic of being convenient to like this to cut formation can effectively pass screen cloth 12 and enter aggregate tube and be collected, and prevents the interior phenomenon that feed blocking occurs of housing 10.

In a word, the utility model can effectively carry out break process to the fast quenching bar after cooling turning back in quick quenching furnace, improve the storing amount of the single of aggregate tube, improve single furnace output of quick quenching furnace and the production cycle that shortens NdFeB magnetic powder, and the NdFeB magnetic powder after fragmentation is tiny evenly.

Claims

1. one kind for broken cutter, it is characterized in that: cutter (22) comprises cutter body (221) and the connecting rod (222) of strip shape, one end of connecting rod (222) is connected with knife rest (23), and the other end of connecting rod (222) forms cross-like with the stage casing of cutter body (221) and is connected.

2. as claimed in claim 1 for broken cutter, it is characterized in that: the upper end away from cutter body (221) of connecting rod (222) offers for knife rest (23), forming the connecting hole (223) be articulated and connected, and the hole core direction of described connecting hole (223) parallels with the length direction of cutter body (221).

3. as claimed in claim 1 for broken cutter, it is characterized in that: the upper end away from cutter body (221) of connecting rod (222) offers for knife rest (23), forming the connecting hole (223) be articulated and connected, and the angle that the hole core direction of described connecting hole (223) and the length direction of cutter body (221) are two different surface beeline shapes layouts and two different surface beelines is less than 90 °.

4. as claimed in claim 1 or 2 for broken cutter, it is characterized in that: described cutter body (221) is that an arc or folding shape louver boards form, and cutter body (221) constitutes Y shape/T shape structure with connecting rod (222).

5. as claimed in claim 4 for broken cutter, it is characterized in that: described cutter (22) is Y-shaped, and two louver boards that form cutter body (221) become 115～120 ° of angles to arrange.

6. as claimed in claim 1 or 2 for broken cutter, it is characterized in that: described knife rest (23) is arranged on the periphery of a rotating shaft (21), rotating shaft (21) axially parallels with the hole core direction of connecting hole (223), knife rest (23) comprise that rotating shaft (21) two ends arrange respectively with its round plate fixed as one (231) and the straight-bar (232) that is connected two round plates (231), straight-bar (232) is along the uniform setting of outer rim hoop of two round plates (231), and described cutter (22) is articulated and connected with straight-bar (232).

7. as claimed in claim 6 for broken cutter, it is characterized in that: described straight-bar (232) becomes parallel shape to arrange with rotating shaft (21).