EP3584048A1 - Mécanisme de commutation de force de pression destiné à une partie d'alimentation en rotation d'un pulvérisateur, pulvérisateur doté dudit mécanisme et procédé de commutation de force de pression destiné à une partie d'alimentation en rotation d'un pulvérisateur - Google Patents

Mécanisme de commutation de force de pression destiné à une partie d'alimentation en rotation d'un pulvérisateur, pulvérisateur doté dudit mécanisme et procédé de commutation de force de pression destiné à une partie d'alimentation en rotation d'un pulvérisateur Download PDF

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Publication number
EP3584048A1
EP3584048A1 EP18905648.4A EP18905648A EP3584048A1 EP 3584048 A1 EP3584048 A1 EP 3584048A1 EP 18905648 A EP18905648 A EP 18905648A EP 3584048 A1 EP3584048 A1 EP 3584048A1
Authority
EP
European Patent Office
Prior art keywords
change point
pressing force
feeding
pulverizer
directions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18905648.4A
Other languages
German (de)
English (en)
Other versions
EP3584048A4 (fr
Inventor
Shinichi Shihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ohashi Inc
Original Assignee
Ohashi Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ohashi Inc filed Critical Ohashi Inc
Publication of EP3584048A1 publication Critical patent/EP3584048A1/fr
Publication of EP3584048A4 publication Critical patent/EP3584048A4/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/002—Transporting devices for wood or chips
    • 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
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B02C18/2283—Feed means using rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
    • 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

Definitions

  • the present invention relates to a pressing force switching mechanism for rotation feeding part of a pulverizer, a pulverizer including the same, and a pressing force switching method for rotation feeding part of a pulverizer.
  • the present invention relates to arrangements with which, when a grinding object, such as a tree or the like, becomes stuck in a grinding portion, removal of the grinding object can be performed easily.
  • Patent Literature 1 blows ground chips afar to enable recovery to be performed easily. Also, a feeding roller that is included in the tree pulverizer and pushes a grinding object against a grinding rotor while pressingly holding the object in a downward direction is arranged to be driven to rotate upon being switched arbitrarily to a direction of pushing the grinding object against the grinding rotor or an opposite direction (description in paragraph [0019] of Patent Literature 1).
  • Patent Literature 1 Japanese Published Unexamined Patent Application No. 2014-58044
  • the present invention has been created in view of the above points and an object thereof is to provide a pressing force switching mechanism for rotation feeding part of a pulverizer, a pulverizer including the same, and a pressing force switching method for rotation feeding part of a pulverizer that are arranged such that, when a grinding object, such as a tree or the like, becomes stuck in a grinding portion, removal of the grinding object can be performed easily.
  • the present invention can provide a pressing force switching mechanism for rotation feeding part of a pulverizer, a pulverizer including the same, and a pressing force switching method for rotation feeding part of a pulverizer that are arranged such that, when a grinding object, such as a tree or the like, becomes stuck in a grinding portion, removal of the grinding object can be performed easily.
  • front, rear, and right, left may be used to express directions and locations in an easily understandable manner.
  • front (direction) is the side in Fig. 1 at which a grinding device 2, to be described below, is provided
  • rear (direction) is the side in Fig. 1 at which a handle 12, to be described below, is provided.
  • left (direction) is the left side in Fig. 3
  • right (direction) is the right side in the Fig. 3 .
  • a pulverizer A includes an undercarriage 1.
  • the undercarriage 1 has a motor 10, a crawler 11 driven by the motor 10, and a handle 12 for driving operation.
  • a grinding device 2 that grinds a grinding object, such as a tree or the like
  • a feeder 3 that feeds the grinding object into the grinding device 2
  • a pressing force switching mechanism 4 that switches a pressing force applied to the grinding object by the feeder 3.
  • the undercarriage 1, the motor 10, the crawler 11, and the handle 12 are ordinary components in a pulverizer and description thereof shall thus be limited to the simple description given above and detailed description shall be omitted.
  • the grinding device 2 has a casing 20.
  • the casing 20 has a supply opening 200 at a grinding object supplying side (right side in Fig. 1 ) (see Fig. 6 , etc.).
  • a supply duct 21 of so-called bell mouth shape that is somewhat narrowed toward the supply opening 200 side is connected to the supply opening 200.
  • An upper face of a bottom plate 210 that is a feeding face of the supply duct 21 is downwardly inclined at a required angle toward the supply opening 200.
  • the supply duct 21 shown in Fig. 1 to Fig. 3 is of Japanese specifications and although unillustrated, under European specifications, a specialized supply duct that is even longer in distance from an inlet at a work portion side to the supply opening 200 is adopted.
  • a partition member 22 defining a grinding space 25 at a front upper portion of the casing 20 is provided in an interior of the casing 20.
  • the casing 20 includes an upper cover 29 capable of opening and closing an upper opening portion (see Fig. 4 ). Performing of maintenance of a grinding rotor 23 to be described below is enabled by opening the upper cover 29.
  • the grinding rotor 23 is rotatably disposed in an interior of the grinding space 25.
  • the grinding rotor 23 is axially supported such as to bridge across respective side plates 201 of the casing 20 with a direction of a rotating shaft 230 being a right-left direction and a horizontal direction.
  • the grinding rotor 23 is belt-driven by a rotating shaft 101 of the motor 10 (see Fig. 2 ).
  • a front portion of the casing 20 is opened and ground matter can be discharged through a screen 26 mounted to an opening portion (reference sign omitted).
  • the grinding rotor 23 has, at two locations in a circumferential direction of a rotator 231 fixed to the rotating shaft 230, grinding blades 24 extending across an entire width. Each grinding blade 24 is disposed such that a blade edge (reference sign omitted) is parallel to the rotating shaft 230. Also, a rotation direction of the grinding rotor 23 is a clockwise rotation direction in Fig. 1 and is arranged to blow the ground matter toward and against the partition member 22 below. A rear portion side (supply opening 200 side) of the grinding rotor 23 is a grinding portion that grinds the grinding object.
  • the feeder 3 is disposed at an upper portion side of a rear portion of the casing 20.
  • the feeder 3 has arm slabs 30 of substantially quadrilateral shape disposed at outer sides of the respective side plates 201.
  • Each arm slab 30 constitutes a movable body and an upper portion at a rear portion side is axially supported by an axial rod 31 such as to enable turning in an up/down direction with respect to each side plate 201.
  • a feeding teeth roller 33 that is a feeding rotator is axially supported via bearings 32 such as to be rotatably drivable (see Fig. 4 ).
  • the feeding teeth roller 33 has a structure provided with feeding teeth 331 at five locations at equal intervals in a circumferential direction of a rotating shaft 330 and intermediate portions in radial directions of the respective feeding teeth 331 are bent at the same angle in a rotation direction. Chevron-shaped teeth are formed continuously at a tooth edge of each feeding tooth 331 (see Fig. 2 ).
  • the feeding teeth roller 33 is interlocked with the grinding rotor 23 via an electromagnetic clutch 35 that rotates together with the grinding rotor 23 (see Fig. 2 ).
  • the electromagnetic clutch 35 When the electromagnetic clutch 35 is connected, the feeding teeth roller 33 is made to rotate in a feeding direction (clockwise rotation direction in Fig. 1 ) via a power transmission mechanism (reference sign omitted), and when the electromagnetic clutch 35 is disconnected, the feeding teeth roller 33 is braked and stops rotating.
  • slots 202 for passing through the rotating shaft 330 are formed in the respective side plates 201 of the casing 20.
  • Each slot 202 is formed in an arc centered at the axial rod 31 and enables lifting and lowering movements of the feeding teeth roller 33, that is, movements in a direction of approaching and in a direction of separating from the grinding object fed to the grinding portion (see Fig. 4 ).
  • each arm slab 30 moves in a manner enabling advancing and retreating to the front and rear onto a bracket 38 shown in Fig. 1 .
  • the stopped position is adjustable by turning the adjusting bolt 380.
  • a rotation trajectory of the tooth edge of each feeding tooth 31 of the feeding teeth roller 33 is set such as to be slightly separated from an upper face of the partition member 22 such as not to interfere with the rotation.
  • a stabilizer 36 is bridged across the respective arm slabs 30 and the respective arm slabs 30 are thereby coupled.
  • the stabilizer 36 secures rigidity of a structure constituted of the respective arm slabs 30 and the feeding teeth roller 33.
  • a pressing force release lever 37 is axially supported turnably via an axial rod 370.
  • the pressing force release lever 37 is not urged and, in a normal state, passes below the stabilizer 36 and is tilted forward by its own weight.
  • the pressing force switching mechanism 4 is provided, below the arm slabs 30, on the side plates 201 at right and left sides (near side and far side in Fig. 1 and Fig. 4 ) of the casing 20.
  • spring hook arms 40, tension springs 42, switching arm plates 46, etc., to be described below have symmetrical structures at the right and left sides and therefore in the following description, just the structure at the left side that is illustrated shall be described and this description shall apply to the structure at the right side for which description shall be omitted.
  • the pressing force switching mechanism 4 has the spring hook arm 40 that is a change point member and is axially supported turnably by an axial rod 41 on the side plate 201.
  • a tip portion of the spring hook arm 40 is pointedly formed and inclined edges at respective sides thereof are arranged as an on contacting portion 401 and an off contacting portion 402.
  • a hook pin 403 that is a hooking portion is provided at an outer face side close to a tip end of the spring hook arm 40.
  • a spring hook 34 is provided at a lower corner portion at the front portion side of the arm slab 30 and the tension spring 42 that is an urging body is hooked with a required tensile force between the spring hook 34 and the hook pin 403.
  • the spring hook arm 40 is arranged to contact and be stopped by a stopper 203, provided on the side plate 201, in an on position shown in Fig. 4 .
  • the stopper 203 is fitted with a collar (not illustrated) made of synthetic resin for cushioning.
  • the spring hook arm 40 has an arrangement where an urging force of the tension spring 42 acts in a direction such that it turns in either way with respect to an angle at which a centerline of the tension spring 42 overlaps with the hook pin 403 and the axial rod 41 at the same time (angle at which the tension spring 42 is extended the most) as a change point.
  • the spring hook arm 40 and the tension spring 42 constitute a link mechanism (an irregular link mechanism in the sense that one of the links is a spring that undergoes expansion and contraction deformation).
  • the arrangement is such that, at the on position, the spring hook arm 40 contacts the stopper 203 upon being pulled slightly in an upwardly turning direction beyond the change point and is fixed (locked) by the urging force of the tension spring 42.
  • An axially supporting part 43 is provided at a rear edge of the side plate 201 at the left side of the casing 20. Also, at a left side of this side plate 201, a supporting part 44 is erected, across a required interval from the side plate 201, on a base 100 of the undercarriage 1. Between an upper portion of the supporting part 44 and the axially supporting part 43, a drive shaft 45 is axially supported rotatably in a horizontal, right-left direction via bearings (reference signs omitted).
  • a switching arm plate 46 which is of substantially L-shape and constitutes a switching means together with a pressing force switching lever 49, an adjusting member 47, a tension spring 48, etc., to be described below, is mounted by the drive shaft 45 being made to penetrate through and fixed at a bend angle portion.
  • the switching arm plate 46 has an on arm 461 (front side in Fig. 4 ) and an off arm 462 (rear side in Fig. 4 ) and rollers 460 that contact the spring hook arm 40 are provided at tip end portions of the respective arms.
  • an on arm 461 front side in Fig. 4
  • an off arm 462 rear side in Fig. 4
  • rollers 460 that contact the spring hook arm 40 are provided at tip end portions of the respective arms.
  • the tension spring 48 is hooked with a required tensile force between the other end portion of the adjusting member 47 and a spring hook 480 provided at a lower end portion of the side plate 201.
  • the pressing force switching lever 49 is fixed to a tip end portion at an outer side of the drive shaft 45.
  • a direction of the pressing force switching lever 49 is set to substantially overlap with a direction of projection parallel to the drive shaft 45 of the roller 460 of the off arm 462 (see Fig. 5 , etc.).
  • a change point is also set for the above-described arrangement including the drive shaft 45, switching arm plate 46, adjusting member 47, tension spring 48, and the pressing force switching lever 49.
  • the arrangement is one where the tensile force of the tension spring 48 acts in a direction such that the switching arm plate 46 turns in either way with respect to an angle at which a centerline of the tension spring 48 overlaps with the drive shaft 45 and the pin 463 at the same time (angle at which the tension spring 48 is extended the most) as a change point.
  • the off arm 462, the tension spring 48, and the adjusting member 47 constitute a link mechanism (an irregular link mechanism in the sense that one of the links includes a spring that undergoes expansion and contraction deformation). That is, at the on position shown in Fig. 5 , the above-described arrangement surpasses the change point to urge the switching arm plate 46 in a clockwise turning direction in Fig. 5 and aid keeping of the on position.
  • the on arm 461 contacts and is stopped by a stopper 204 provided on the side plate 201 and the above-described arrangement surpasses the change point in a direction opposite that in the case of the on position to urge the switching arm plate 46 in a counterclockwise turning direction in Fig. 7 and aid keeping of the off position.
  • the spring hook arm 40 rotates beyond the change point in a direction opposite that in the case of the on position and is put in a free state limited by contacting of a stopper 205 provided on the side plate 201.
  • the U-shape of the adjusting member 47 is a shape that provides clearance in advance at the curved portion to avoid the drive shaft 45 during movement and prevent interference (or contact).
  • the spring hook arm 40 When the spring hook arm 40 is pushed further by the roller 460 of the on arm 461, the spring hook arm 40 rotates beyond the change point in the lock direction and stops in a state of contacting the stopper 203.
  • the pressing force switching mechanism 4 of the pulverizer A can thereby be returned to the original set state shown in Fig. 5 , and thereafter, the grinding work can be continued generally by the procedures of (1) and (2) described above.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Food Science & Technology (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)
EP18905648.4A 2018-02-09 2018-02-09 Mécanisme de commutation de force de pression destiné à une partie d'alimentation en rotation d'un pulvérisateur, pulvérisateur doté dudit mécanisme et procédé de commutation de force de pression destiné à une partie d'alimentation en rotation d'un pulvérisateur Pending EP3584048A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/004718 WO2019155634A1 (fr) 2018-02-09 2018-02-09 Mécanisme de commutation de force de pression destiné à une partie d'alimentation en rotation d'un pulvérisateur, pulvérisateur doté dudit mécanisme et procédé de commutation de force de pression destiné à une partie d'alimentation en rotation d'un pulvérisateur

Publications (2)

Publication Number Publication Date
EP3584048A1 true EP3584048A1 (fr) 2019-12-25
EP3584048A4 EP3584048A4 (fr) 2020-12-30

Family

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Application Number Title Priority Date Filing Date
EP18905648.4A Pending EP3584048A4 (fr) 2018-02-09 2018-02-09 Mécanisme de commutation de force de pression destiné à une partie d'alimentation en rotation d'un pulvérisateur, pulvérisateur doté dudit mécanisme et procédé de commutation de force de pression destiné à une partie d'alimentation en rotation d'un pulvérisateur

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EP (1) EP3584048A4 (fr)
JP (1) JP6487610B1 (fr)
WO (1) WO2019155634A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114345509B (zh) * 2022-01-08 2023-03-14 钟惠铃 一种儿科口服药丸定量研磨装置
CN117244621B (zh) * 2023-11-20 2024-01-26 浙江艾领创矿业科技有限公司 一种铁矿石的精粉破碎装置及其工艺

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1237290A (fr) * 1959-04-28 1960-07-29 Gustin Fils Ets Machine pour le découpage du bois, notamment des déchets de scierie
JPS595528Y2 (ja) * 1978-09-08 1984-02-20 惣太 山本 農用チッパ−における被切削材料の掻込装置における安全装置
JPS5683005U (fr) * 1979-11-27 1981-07-04
JPH065722Y2 (ja) * 1986-09-30 1994-02-16 株式会社山本製作所 農用カッターの送込装置における資料屑脱出防止装置
JPH0314997Y2 (fr) * 1986-10-20 1991-04-03
JPH0425290Y2 (fr) * 1987-09-18 1992-06-17
US5060873A (en) * 1990-05-21 1991-10-29 Strong Manufacturing Wood chipper fin chip separator
JP5503110B2 (ja) * 2008-02-08 2014-05-28 大橋 弘幸 チッパー及びチッパーにおける被粉砕物の噛み込みを解除する方法
JP6091121B2 (ja) 2012-09-14 2017-03-08 株式会社カルイ 樹木粉砕機

Also Published As

Publication number Publication date
EP3584048A4 (fr) 2020-12-30
JPWO2019155634A1 (ja) 2020-02-27
JP6487610B1 (ja) 2019-03-20
WO2019155634A1 (fr) 2019-08-15

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