CN203467278U - Cutting disc of cutting machine - Google Patents

Abstract

The utility model discloses a cutting disc of a cutting machine. The cutting disc of the cutting machine includes a sawing disc (1), an inertia disc (2), a connecting bolt (3), an engine base (4), an engine base bearing (5), sawing teeth (10), a rotating shaft (11), an upper positioning gland (12), a lower positioning gland, a stop and locking nut, a rotating shaft end screw, an upper positioning gland inner hole (20), an upper positioning gland hexagonal hole (21), and an upper positioning gland inner ring (22). The cutting disc of the cutting machine is characterized in that a moving cutter blade (6) and a moving cutter holder (7) are fixed on the rotating shaft (11) through a moving cutter fastening bolt (9), a fixed cutter blade (8) is fixed on the engine base (4) through welding, a notch (23) is formed in the upper positioning gland inner hole (20), a notch is also formed in the lower positioning gland inner hole, a fastening pressing piece inner tongue (16) on a fastening pressing piece (14) extends into the notches (23) in the upper gland inner hole and the lower gland inner hole, and fastening pressing piece outer stop and locking pieces (15) on the fastening pressing piece (14) are bent to press the stop and locking nut.

Description

Cutting disc of a cutting machine

technical field

The utility model patent relates to an anti-winding shaft and fastening device, in particular to a cutting disc of a cutting machine. the

Background technique

As we all know, rice, wheat and other harvests require harvesting machinery; in the management of mulberry gardens, mulberry trees are pruned and cut several times a year, including grafting and improvement of mulberry trees, summer cutting, winter pruning and mulberry cultivation. , so that the mulberry leaves grow better in the coming year, cutting machinery is needed. the

Cutting machinery is mainly manual shears, and electric branch shears and pneumatic shears have also been introduced in recent years. Manual cutting is very laborious, and the cutting speed is very slow; commercially available electric branch shears are powered by storage batteries, and the power is limited. The power of the cutting motor is low, and it is easy to cut small branches. Shorter, higher cost price;

Most of the harvesting machines sold on the market now use disc-toothed saw-type blades, and the connecting drive shaft of the blades is often wound on the rotating shaft of the cutting disc by weeds and uncut branch bast, which not only increases the The frictional resistance between the cutter head and the load-bearing fixed seat will consume part of the kinetic energy, and if it is too entangled, if it is not removed, the saw head will not be able to rotate and cannot work; Do not loosen the saw disc pressing screw, which will cause the cutter disc to be thrown out and cause serious injury to the human body; removing the entanglement will also take time and delay work.

Cutting the branches with cutting power will increase the resistance several times. When cutting thick branches, the cutter head will be stuck on the branches or the saw head will decelerate and rotate, which will also cause the saw head to loosen the compression nut, and the cutter head will be thrown off. result in serious bodily injury. the

To this end, an anti-winding shaft and fastening device must be added to the cutting disc. the

Utility model content

The purpose of the utility model is to provide a cutting disc of a cutting machine which can effectively prevent the bark and weeds from winding the rotating shaft and prevent the cutter disc from falling off in order to overcome the deficiencies in the prior art. The specific technical solution is: a cutting disc of a cutting machine includes a sawing disc, an inertia disc, a connecting bolt, a frame, a frame bearing, sawing teeth, a rotating shaft, a positioning upper gland, a positioning lower gland, Locking nut, screw at the end of the rotating shaft, inner hole of the positioning upper gland, hexagonal hole of the positioning upper gland, inner ring of the positioning upper gland, the sawing disc and the inertial disc are fastened together by connecting bolts, and the base bearing Embedded on the machine base, a moving blade and a moving knife handle are fixed on the rotating shaft by the fastening bolt of the moving knife, and the fixed blade is welded and fixed on the machine base. There is a gap in the inner hole of the gland for positioning. There is also a gap in the inner hole on the gland, and the lower end of the rotating shaft is sequentially inserted into the positioning upper gland, the sawing disc, the positioning lower gland, the fastening pressure piece, and the fastening pressure piece on the fastening pressure piece. The tongue protrudes into the gap in the inner hole on the upper and lower glands. After the lock nut is screwed tightly at the end of the rotating shaft, bend the outer stop piece of the fastening piece on the fastening piece to press the locking piece. nut. the

Cutting process: When the power transmitted by the power machine drives the rotating shaft to rotate, the sawing disc fixed at its lower end rotates accordingly, and the sawing teeth around the sawing disc cut off the branches or rice and wheat. The inertia disc is a weighted metal disc, which has the function of storing the kinetic energy between the cut branches. the

Anti-winding principle: When the bark and weeds are not cut off but entangled on the rotating shaft (11) of the cutting disc, the rotating shaft (11) moves the moving blade (6) to rotate with the shaft to the nearest side between the shaft and the inner side of the fixed blade When (the upper picture in Figure 3), the windings form a small ring (a small ring between ab and ab) between the main shaft and the fixed knife, and the winding arc circle is the smallest; the rotating shaft (11) continues to rotate, when the rotating shaft ( 11) When the upper moving blade rotates with the shaft to the outside of the shaft and the fixed blade (the lower figure in Figure 3), that is, when the spindle knife rotates to the farthest distance from the fixed knife, the winding arc circle is the largest (a large circle between ac ), the distance between the fixed and moving blades is increased (increasing the length between bc), and the small ring formed between the main shaft and the fixed blade is broken, and the winding is cut by the fixed and moving blades and falls off, thus clearing Tangled branches and weeds were removed. the

Fastening principle: because the positioning upper gland hexagonal hole (22) is nested with the hexagonal prism at the lower end of the rotating shaft (11), and the inner tongue (16) of the fastening pressure piece is also nested in the positioning upper gland hexagonal In the gap (23) of the upper gland of the hole (22), the other end locks the lock nut, so the lock nut can only completely follow the rotation axis (11) to rotate, and it will not loosen under any circumstances. Thereby reach the fastening effect that prevents the falling off of the cutting disc due to the loosening of the nut. the

As can be seen from the technical scheme of the utility model, due to welding a metal blade (moving blade) on the rotating shaft, a fixed blade is fixed on the support (bearing seat) frame, when the bark and weeds are not cut off Wrapped on the rotating shaft of the cutting disc, when the moving blade on the rotating shaft rotates with the shaft to the inner side of the inner side of the shaft and the fixed blade, the winding will form a small ring between the main shaft and the fixed blade, and the winding arc circle is the smallest; The rotating shaft continues to rotate. When the moving blade on the rotating shaft rotates to the outside of the shaft and the fixed blade along with the shaft, that is, when the spindle knife rotates to the farthest distance from the fixed knife, the winding arc circle is the largest, and the distance between the fixed and moving blades increases. , The small ring formed between the main shaft and the fixed knife is broken, and the winding is cut off by the fixed and moving blades, thereby removing the entangled branches and weeds. And because the positioning upper gland hexagonal hole (22) is nested together with the hexagonal prism at the lower end of the rotating shaft (11), the inner tongue (16) of the fastening pressure piece is also nested in the positioning upper gland hexagonal hole (22 ) in the upper gland gap (23), and the other end clamps the lock nut, therefore, the lock nut can only completely rotate with the rotation shaft (11), and will not loosen under any circumstances, thereby preventing The fastening effect is due to the loosening of the nut and the falling off of the cutting disc. The utility model has fully reached the purpose of the invention that can effectively prevent weeds and mulberry bark from winding the rotating shaft and prevent the cutter head from coming off. the

Description of drawings

Fig. 1 is a schematic diagram of the main structure of the cutting disc of a cutting machine of the utility model;

Fig. 2 is the schematic diagram when the distance between the anti-winding shafts of the utility model is the smallest;

Fig. 3 is a schematic diagram of the utility model when the distance between the anti-winding shafts is the largest;

Fig. 4 is a structural schematic diagram of the fastening pressing sheet of the present invention;

Fig. 5 is a schematic diagram of the structure of the positioning upper gland of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail. the

Embodiment 1, referring to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, a cutting disc of cutting machine comprises sawing disc 1, inertia disc 2, connecting bolt 3, machine base 4. Base bearing 5, sawing teeth 10, rotating shaft 11, positioning upper gland 12, positioning lower gland, lock nut, rotating shaft end screw, positioning upper gland inner hole 20, positioning upper gland Hexagonal hole 21, positioning upper gland inner ring 22, sawing disc 1 and inertial disc 2 are fastened together by connecting bolt 3, machine base bearing 5 is embedded on machine base 4, a moving blade 6 and a moving knife handle 7 The moving knife fastening bolt 9 is fixed on the rotating shaft 11, and the fixed blade 8 is welded and fixed on the machine base 4. There is a gap 23 in the inner hole 20 of the upper gland for positioning, and a gap 23 is opened in the inner hole of the lower gland for positioning. Also have a gap, the lower end of rotating shaft 11 is inserted into the positioning upper gland 12, sawing disc 1, positioning lower gland 13, fastening pressing piece 17 in sequence, and in the fastening pressing piece on the fastening pressing piece 14 The tongue 16 stretches into the gap 23 in the inner hole on the upper and lower glands. After the lock nut is screwed tightly at the end of the rotating shaft, the outer lock plate 15 of the fastening pressure piece on the fastening pressure piece 14 is pulled. Bend over the jam nut. the

Claims (3)

1. cut and cut down cutting and cutting down a dish of machinery, comprise that saw cuts down dish (1), inertia disk (2), binder bolt (3), support (4), support bearing (5), knife section (6), moving knife handle (7), ledger-plate (8), moving knife clamping bolt (9), saw cuts down sawtooth (10), turning cylinder (11), location upper press cover (12), location lower cover, fastening compressing tablet (14), fastening compressing tablet stops tight sheet (15) outward, tongue (16) in fastening compressing tablet, fastening compressing tablet endoporus (17), stop tight nut, turning cylinder end spiral, location upper press cover endoporus (20), upper press cover six rib holes (21), location, ring (22) in the upper press cover of location, upper press cover breach (23), it is characterized in that: on base frame (5), fix a ledger-plate (8), it is upper that knife section (6) and moving knife handle (7) are fixed on turning cylinder (11) by moving knife clamping bolt (9), and the lower end of turning cylinder (11) is inserted in location upper press cover (12) in turn, inertia disk (2), saw cuts down dish (1), location lower cover, fastening compressing tablet (14), stop tight nut.

2. a kind of cutting according to claim 1 cut down cutting and cutting down dish of machinery, it is characterized in that: saw cuts down dish (1) and inertia disk (2) is fastened as a whole by binder bolt (3).

3. a kind of cutting according to claim 1 cut down cutting and cutting down dish of machinery, it is characterized in that: in the fastening compressing tablet on fastening compressing tablet (17), tongue (16) stretches in the breach (23) in the endoporus on lower cover.

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