KR101683393B1 - Driving method for 4-axis crushing apparatus - Google Patents

Driving method for 4-axis crushing apparatus Download PDF

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Publication number
KR101683393B1
KR101683393B1 KR1020150126018A KR20150126018A KR101683393B1 KR 101683393 B1 KR101683393 B1 KR 101683393B1 KR 1020150126018 A KR1020150126018 A KR 1020150126018A KR 20150126018 A KR20150126018 A KR 20150126018A KR 101683393 B1 KR101683393 B1 KR 101683393B1
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KR
South Korea
Prior art keywords
cutter
gears
drive
cutters
drive shafts
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KR1020150126018A
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Korean (ko)
Inventor
김열환
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케이알티 (주)
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/24—Drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
    • B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The present invention relates to a driving method of a four-shaft crusher.
The first gears 51 and 51a and the transmission gears 5 and 5a as the second gears 52 and 52a are provided on the first drive shafts 2 and 2a of the hydraulic motors 1 and 1a And a second drive shaft (4a) provided at a position symmetrical to one side of the first drive shaft (2, 2a) is provided with a first gear (4a) engaging with the first gear (51, 51a) of the transmission gear The first drive gears 6 and 6a and the second drive gears 7 and 7a to which the first cutters 8 and 8a are fixed and engage with the second gears 51 and 51a of the transmission gears 5 and 5a, And a second cutter (9, 9a) fixed to a third drive shaft (4, 4a) arranged side by side on the first drive shaft (2, 2a) with the first cutter (8, 8a) The crushing device for crushing the crushing object by the second cutter 9 or 9a drives the second drive shafts 3 and 3a and the second cutters 9 and 9a for driving the first cutters 8 and 8a The first drive shafts 8 and 8a and the second drive shafts 9 and 9a are driven by the drive shafts of the third drive shafts 4 and 4a, It has a different torque will be the crushed object to be crushed.

Description

[0001] The present invention relates to a four-axis crushing apparatus,

The present invention relates to a crushing apparatus for crushing wastes having a predetermined size or more to a predetermined size by a driving system in which crushing power is output to four crushing shafts in order to recycle the waste. And more particularly, to a driving method of a four-shaft crushing apparatus capable of rapidly crushing waste by changing the number of revolutions of rotation to protect the facility while increasing the production amount.

Generally, various wastes and objects to be recycled must be crushed to a predetermined size using a crushing device to facilitate handling, transportation, and processing in the treatment process.

In the conventional general crushing apparatus, two shafts are provided in a horizontal plane, and crushing cutters are provided on the respective shafts so as to be offset from each other so that crushing cutters that receive power of the decelerator and rotate are finely crushed while passing through the crushing object. A four-shaft crusher having four axes as drive shafts has been proposed as an improved structure from this apparatus.

The conventional four-shaft crusher has a structure in which the above-described hydraulic motor, transmission gear, first cutter and second cutter are symmetrically arranged. The four-shaft crusher is provided so as to face the first cutter on both sides so as to crush the object to be crushed, and can be crushed while rotating at the same rotational speed in the opposite direction to each other. The hydraulic motor drives the first and second The first gear rotates the first cutter and the second gear rotates the second cutter. When the pitch diameter of the second gear is smaller than that of the first gear, Since the first driving gear engaged with the gear has almost the same pitch circle diameter and the second driving gear has a pitch circle diameter smaller than that of the second gear, The gear is rotated rapidly so that the second cutter rotates more rapidly than the first cutter so that the first cutter can be crushed simultaneously at three places between the first cutter and the second cutter A.

On the other hand, the crusher has a safety device for reversing the cutter to protect the system. The safety device is a system that allows two to three turns of reverse rotation when an overload occurs on a cutter by a crushing object having a physical property that can be broken by a force larger than a crushing torque, If it can not be broken even after proceeding, the alarm sound and the warning light are operated so that the operator can detect the work state and take action.

In the conventional four-shaft crushing apparatus, both first cutters can be crushed while rotating in opposite directions at the same rotational speed in a state in which they are opposed to each other so as to crush the crushing object. Thus, regardless of the physical properties and size of the crushed material When the breakage is overloaded, the cutter rotates in the reverse direction. If the reverse rotation is repeated, the impact of the parts of the equipment is affected, and the degree of damage of the parts is suddenly increased, resulting in shortening of the service life and low production.

[Document 1] KR 10-0686324 [Document 2] KR 10-0848658

The number of revolutions of the four shafts is made different from each other by a method capable of reducing the crushing load in the crushing device, so that the first cutter and the second cutter each have a troch due to different rotational speeds, The present invention has been completed.

Accordingly, in a four-shaft crushing apparatus capable of crushing at three places by a method of disposing a pair of hydraulic motors and a transmission gear, each of the cutters has a crushing torque by a different number of revolutions The present invention provides a four-shaft crusher capable of improving the crushing efficiency while extending the life of the parts in the apparatus without the crushing load by solving the problem of the reverse rotation of the cutter due to overload.

Technical features for achieving the object of the present invention are that the first gears 51 and 51a and the second gears 52 and 52a are provided on the first drive shafts 2 and 2a of the hydraulic motors 1 and 1a The second drive shaft 4 and 4a provided at symmetrical positions on one side of the first drive shafts 2 and 2a are provided with transmission gears 5 and 5a to which the transmission gears 5 and 5a The first drive gears 6 and 6a and the first cutters 8 and 8a are fixed to the first and second gears 51 and 51a of the transmission gears 5 and 5a, And second cutters 9 and 9a which are fixed to third drive shafts 4 and 4a arranged in parallel to the upper portions of the first drive shafts 2 and 2a together with second drive gears 7 and 7a to be engaged And a second drive shaft (3, 3a) for driving the first cutter (8, 8a) in the crushing device for crushing the crushing object by the first cutter (8, 8a) and the second cutter (9, 9a) And the fourth drive shaft (4, 4a) for driving the second cutter (9, 9a) have different rotational speeds So that the first cutter (8, 8a) and the second cutter (9, 9a) have different torques to crush the object to be crushed.

The four drive shafts constituted by the second drive shafts 3 and 3a for driving the first cutters 8 and 8a and the third drive shafts 4 and 4 for driving the second cutters 9 and 9a are rotated A different power may be output from the hydraulic motors 1 and 1a.

The method of driving the four driving shafts so that the four driving shafts have different rotational speeds is performed by the first driving gears 6 and 6a, the first gears 51 and 51a, the second gears 52 and 52a, The second drive shafts 3 and 3a for driving the first cutters 8 and 8a and the third drive shafts 9 and 9a for driving the second cutters 9 and 9a are driven by the reduction ratio in which the gears 7 and 7a are engaged, And the four drive shafts constituted by the first and second drive shafts 4 and 4a are driven to have different rotational speeds.

Therefore, in the present invention, the number of rotations of the first cutter 8a is smaller than that of the first cutter 8 in the pair of first cutters 8, 8a, and the number of rotations of the second cutter 9, And the second cutter 9a is driven by a greater number of revolutions than the second cutter 9, as compared to the first cutter 8 and the second cutter 9, respectively.

Further, the present invention is characterized in that four drive shafts constituted by the second drive shafts (3, 3a) for driving the first cutters (8, 8a) and the third drive shafts (4, 4a) for driving the second cutters Different powers may be output from the hydraulic motors 1, 1a so as to have different rotational speeds.

More preferably, the pair of first cutters 8 and 8a have a smaller number of revolutions of the first cutter 8a than the first cutter 8, and the second cutter 9 and 9a to the second cutter 8a, 9 has a greater number of revolutions than the first cutter 8 and the second cutter 9a has a greater number of revolutions than the second cutter 9.

In the present invention as in the case of a conventional crushing apparatus, when a hydraulic motor driven by a hydraulic motor is driven to rotate a transmission gear composed of a first gear and a second gear, the first gear rotates the first cutter, The first drive gear engaged with the first gear has substantially the same pitch circle diameter while the pitch diameter of the second gear is smaller than that of the first gear and the second drive gear is smaller than the second gear The rotation speed is changed due to the pitch circle diameter, so that the second drive gear is rotated faster than the first drive gear. As a result, a speed deviation in which the second cutter rotates faster than the first cutter is generated, And the second cutter.

According to the driving method of the present invention, the pair of first cutters 8, 8a rotate at a lower speed than the second cutters 9, 9a by a driving method in which the rotational speeds of four axes are different from each other, The second cutters 9 and 9a positioned higher than the first cutters 8 and 8a rotate at a faster speed than the first cutters 8 and 8a and exhibit a lower torque to exhibit efficient crushing power .

The present invention relates to a four-shaft drive type crushing apparatus in which the number of revolutions of the respective driving shafts is made different from each other, and in the conventional four-shaft drive type crushing apparatus, when the number of revolutions is designated as two, So that the hydraulic motor and the speed reducer are protected and the productivity is improved.

1 is a plan view of a four-shaft crushing apparatus to which the present invention is applied
2 is a side view of a four-shaft crushing apparatus to which the present invention is applied
Fig. 3 is a perspective view of a four-shaft crushing apparatus to which the present invention is applied,

The technical features and advantages of the present invention will be more clearly understood by the embodiments explained by the attached drawings.

Hereinafter, embodiments of the present invention will be described.

Fig. 1 is a plan view of a four-shaft crusher to which the present invention is applied, Fig. 2 is a side view, and Fig. 3 is a three-dimensional view taken from a power transmission portion.

As is well known, the four-shaft crushing apparatus to which the present invention is applied includes a hydraulic motor 1, 1a having a frame F, a decelerating means, first drive shafts 2, 2a, second drive shafts 3, 3a, The first drive gears 7 and 7a and the first drive gears 8 and 8a and the second drive gears 7 and 7a of the first drive gear 4 and 4a, the transmission gears 5 and 5a, the first drive gears 6 and 6a, , 9a.

The frame F is composed of a horizontal frame f1, a first vertical frame f2, a second vertical frame f3 and a third vertical frame f4.

The first drive shaft 2 and the second drive shaft 3 and the third drive shaft 3 and the third drive shaft 4 and the transmission gear 5 are interposed between the first vertical frame f2 and the second vertical frame f3 And first cutters 8 and 8a and second cutters 9 and 9a are provided between the second vertical frame f3 and the third vertical frame f4.

The hydraulic motors 1 and 1a are fixed to the outer side surfaces of the first vertical frame f2 with speed reducers 10 and 10a and are connected to output sides of the speed reducers 10 and 10a. 2a are installed inside the first vertical frame f2.

The first drive shafts 2 and 2a are provided with transmission gears 5 and 5a and are rotatably supported by the first vertical frame f2 and the second vertical frame f3.

The transmission gears 5 and 5a include first gears 51 and 51a and second gears 52 and 52a. The first gears 51 and 51a are spaced apart from the second gears 52 and 52a by a pitch circle And the second gears 52 and 52a are formed to have a smaller pitch circle diameter than the first gears 51 and 51a so as to drive the second cutters 7 and 7a. .

The second driving shafts 3 and 3a are provided horizontally on one side of the first driving shafts 2 and 2a and include first driving gears 6 and 6a engaged with the first gears 51 of the transmission gear 5, Is fixed.

The third drive shafts 4 and 4a are provided at positions higher than the first drive shafts 2 and 2a inward toward the second drive shafts 3 and 3a and are meshed with the second gears 52 of the transmission gear 5. [ The second driving gear 7, 7a is fixed.

The first drive gears 6 and 6a are formed to have the same pitch circle diameter as that of the first gears 51 and 51a.

The second drive gear 7, 7a is formed with a smaller pitch circle diameter than the second gear 52, 52a.

The first cutters 8 and 8a are fixed to the second drive shafts 3 and 3a, respectively, and form a contact angle capable of breaking the object to be crushed.

The second cutters 9 and 9a are respectively fixed to the third drive shafts 4 and 4a to form contact angles capable of crushing the eighth cutters 8 and 8a and the crushing object.

2, the first drive shaft 2 rotates in the counterclockwise direction and the first drive shaft 2a on the opposite side rotates in the clockwise direction as the hydraulic motors 1 and 1a are driven. do.

Therefore, the transmission gear 5 linked to each of the first drive shafts 2, 2a rotates in the counterclockwise direction, and the transmission gear 5a on the opposite side rotates in the clockwise direction.

The first drive gear 6 engaged with the first gear 51 constituting the transmission gears 5 and 5a rotates clockwise and the second drive gear 6 meshed with the first gear 51a on the opposite side 6a are rotated in the counterclockwise direction, so that the first cutters 8, 8a forming the crushed contact angle break the object to be crushed at the "A" portion.

At the same time, the second drive gear 7 engaged with the second gear 52 rotating in the counterclockwise direction rotates clockwise to form a crushing contact angle with the first cutter 8, The second cutter 9 is rotated in the clockwise direction to break the object to be crushed at the portion "B ".

Here, the first cutter 8 rotates comparatively slowly by the first drive gear 6 that forms a larger pitch circle diameter than the second gear 52, and the first cutter 8 rotates relatively slowly, A speed difference is generated between the first cutter 8 and the second cutter 9 by the second drive gear 7 which rotates faster than the first drive gear 6 to be smoothly broken.

At the same time, the second drive gear 7a engaged with the second gear 52a rotating in the clockwise direction is rotated counterclockwise to form the third drive shaft 4a while forming a crush contact angle with the first cutter 8a The second cutter 9a receiving the power is rotated in the counterclockwise direction and the crushing object is crushed at the "C" portion.

Here, the first cutter 8a rotates comparatively slowly by the first drive gear 6a forming a larger pitch circle diameter than the second gear 52a, and the first cutter 8a is rotated relatively slowly with the smaller pitch circle diameter A speed deviation is generated between the first cutter 8a and the second cutter 9a by the second drive gear 7a which rotates faster than the first drive gear 6a to be smoothly broken.

According to the embodiment of the present invention, the hydraulic motors (1, 1a) output power at different revolutions.

As a preferred example, the hydraulic motor 1 outputs power greater than that of the other hydraulic motor 1a.

The first drive shaft 2 rotates at a larger number of revolutions than the other first drive shaft 2a and the first drive shaft 2 rotates together with the first drive shaft 2, The first drive shafts 51 and 51a rotate the first drive gears 6 and 6a of the second drive shafts 3 and 3 provided with the first cutters 8 and 8a.

At this time, since the first drive shaft 2 rotates at a larger number of revolutions than the other first drive shaft 2a, the first cutter 8 rotates at a larger number of revolutions than the other first cutter 8a, , 8a output different crushing torques and crush the crushing object having a relatively high specific gravity at the "A" site.

At the same time, the power of the second drive shafts 2, 2a causes the second gears 52, 52a to rotate the second drive gears 7, 7a to drive the second cutters 9, 9a.

At this time, the second cutters 9 and 9a are rotated at a different rotational speed than the first cutters 6 and 6a so that the first cutter 8 and the second cutter 9 are different from each other The comparatively light crushing object at the " B " portion is crushed while the crushing torque is outputted, and the first cutter 8a and the second cutter 9a output different crushing torques, .

That is, a large specific gravity is broken at the lower portion " A " where the first cutter 8 and the second cutter 8a are broken, and the lower portion of the first cutter 8 and the second cutter 9 And the first cutter 8a and the second cutter 9a form a pair and are crushed at the upper portions "B" and "C" where the crushing is performed.

In this state, for example, the first cutter 8 rotates at 24 rpm, the first cutter 8a rotates at 21 rpm, the second cutter 9 rotates at 36 rpm, and the second cutter 9a rotates at 39 rpm.

Therefore, the first cutter 8 and the second cutter 8 are driven at a rotating ratio of 24: 21 rpm to break at the "A" portion, and the first cutter 8 and the second cutter 9 are rotated at 24: The first cutter 8a and the second cutter 9a are crushed at the portion " C " at a rotation ratio of 21:39 rpm.

In the embodiment described above, the hydraulic motors 1 and 1a output power of different rotational speeds so that the first cutters 8 and 8a and the second cutters 9 and 9a respectively output torque at different rotational speeds The first cutter 8 and the second cutter 9, the first cutter 8, and the second cutter 9, using the gear reduction ratio in the electric drive gear 5, the first drive gear 6, 6a and the second drive gear 7, 9a may be able to indicate torques by different numbers of revolutions, respectively.

The four drive shafts, that is, the first drive shafts 2 and 2a and the second drive shafts 3 and 3a have different numbers of revolutions, respectively, and each of the first cutter 8 and the second cutter 9, 8a and the second cutter 9a are different from each other and crushing is carried out with torques according to different rotational speeds, the crushing object can be evenly crushed by diversification of crushing power, Thereby preventing the reverse rotation and extending the life of the equipment.

1, 1a: a hydraulic motor 2, 2a: a first drive shaft
3, 3a: second drive shaft 4, 4a: third drive shaft
5, 5a: transmission gears 6, 6a: first drive gear
7, 7a: second drive gear 8, 8a: first cutter
9, 9a: second cutter

Claims (5)

The first gears 51 and 51a and the transmission gears 5 and 5a serving as the second gears 52 and 52a are provided on the first drive shafts 2 and 2a of the hydraulic motors 1 and 1a, The first driving gears 3 and 3a provided at symmetrical positions on one side of the first driving shaft 2 and 2a are provided with first driving gears 5 and 5a which engage with first gears 51 and 51a of the transmission gears 5 and 5a, And a second drive gear 7 and 7a fixed to the first gears 6 and 6a and the first cutters 8 and 8a and engaged with the second gears 52 and 52a of the transmission gears 5 and 5a, And a second cutter 9 and 9a fixed to third drive shafts 4 and 4a arranged in parallel to the first drive shafts 2 and 2a so that the first cutters 8 and 8a, (9, 9a) for crushing an object to be crushed,
The four drive shafts constituted by the second drive shafts 3 and 3a for driving the first cutters 8 and 8a and the third drive shafts 4 and 4 for driving the second cutters 9 and 9a have different rotational speeds So that the first cutter 8, 8a and the second cutter 9, 9a have different torques to crush the object to be crushed,
The four drive shafts constituted by the second drive shafts 3 and 3a for driving the first cutters 8 and 8a and the third drive shafts 4 and 4 for driving the second cutters 9 and 9a are driven by different rotation speeds So that different powers are output from the hydraulic motors 1 and 1a, respectively,
The first cutter 8 and the second cutter 8 are driven by the reduction ratio in which the first drive gear 6 and the first drive gear 6a are engaged with the first and second gears 51 and 51a and the second and third drive gears 7 and 7a, The four drive shafts constituted by the second drive shafts 3 and 3a for driving the first and second cutters 9 and 9a and the third drive shafts 4 and 4 for driving the second cutters 9 and 9a are driven to have different rotational speeds,
The number of revolutions of the first cutter 8a on the other side of the first cutter 8 is smaller than that of the first cutter 8 and the number of revolutions of the second cutter 9 ) Is driven by a greater number of revolutions than the first cutter (8), and the other second cutter (9a) is driven by a greater number of revolutions than the second cutter (9). delete delete delete delete
KR1020150126018A 2015-09-07 2015-09-07 Driving method for 4-axis crushing apparatus KR101683393B1 (en)

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KR1020150126018A KR101683393B1 (en) 2015-09-07 2015-09-07 Driving method for 4-axis crushing apparatus

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KR1020150126018A KR101683393B1 (en) 2015-09-07 2015-09-07 Driving method for 4-axis crushing apparatus

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107999188A (en) * 2017-11-02 2018-05-08 铜陵博锋实业有限公司 A kind of bentonite milling screening plant
WO2022021690A1 (en) * 2020-07-30 2022-02-03 苏州仓旻电子科技有限公司 Rubber particle crushing apparatus
KR102609854B1 (en) 2022-12-23 2023-12-05 엠엔테크(주) 4 shaft for breaking apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100686324B1 (en) 2006-06-26 2007-02-22 재경산업 주식회사 4 shaft for breaking apparatus
KR100848658B1 (en) 2008-05-08 2008-07-28 하용호 A apparatus for crushing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100686324B1 (en) 2006-06-26 2007-02-22 재경산업 주식회사 4 shaft for breaking apparatus
KR100848658B1 (en) 2008-05-08 2008-07-28 하용호 A apparatus for crushing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107999188A (en) * 2017-11-02 2018-05-08 铜陵博锋实业有限公司 A kind of bentonite milling screening plant
WO2022021690A1 (en) * 2020-07-30 2022-02-03 苏州仓旻电子科技有限公司 Rubber particle crushing apparatus
KR102609854B1 (en) 2022-12-23 2023-12-05 엠엔테크(주) 4 shaft for breaking apparatus

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