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EP0081203A2 - Backenbrecher - Google Patents

Backenbrecher Download PDF

Info

Publication number
EP0081203A2
EP0081203A2 EP82111145A EP82111145A EP0081203A2 EP 0081203 A2 EP0081203 A2 EP 0081203A2 EP 82111145 A EP82111145 A EP 82111145A EP 82111145 A EP82111145 A EP 82111145A EP 0081203 A2 EP0081203 A2 EP 0081203A2
Authority
EP
European Patent Office
Prior art keywords
toothed plate
moving
plate
stationary
toggle
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.)
Withdrawn
Application number
EP82111145A
Other languages
English (en)
French (fr)
Inventor
Shinroku Shida
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.)
Shinroku Seiki Co Ltd
Shinroku Seiki KK
Original Assignee
Shinroku Seiki Co Ltd
Shinroku Seiki KK
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
Priority claimed from JP19788381A external-priority patent/JPS58101743A/ja
Priority claimed from JP6248282U external-priority patent/JPS5933472Y2/ja
Application filed by Shinroku Seiki Co Ltd, Shinroku Seiki KK filed Critical Shinroku Seiki Co Ltd
Publication of EP0081203A2 publication Critical patent/EP0081203A2/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B02C1/04—Jaw crushers or pulverisers with single-acting jaws

Definitions

  • the present invention relates to a jaw crusher of which a stationary toothed plate and a moving toothed plate driven by a motor are arranged opposite to each other between which raw stones are supplied and crushed, and more particularly, to a single-toggle type jaw crusher.
  • a typical one comprises, as shown in Figure 1, a stationary toothed plate 100 and moving toothed plate 101 disposed opposite to each other and which form together a crushing chamber 102 having a V-like longitudinal section.
  • the stationary toothed plate 100 is fixed to a frame 103, while the moving toothed plate 101 is fixed to a swing jaw 104 of which the top is coupled to an eccentric shaft 106 of a flywheel 105 and the bottom is supported by a toggle plate 107.
  • the moving toothed plate 101 fixed to the swing jaw 104 is cooperative with the flywheel 105 and toggle plate 107 to effect crushing and hulling or grinding motions.
  • the flywheel 105 is rotationally driven to rotate the eccentric shaft 106 at a speed of 180 to 450 rpm, thereby swinging the swing jaw 104.
  • the moving toothed plate 101 made to swing with the swing jaw 104 is moved delineating a maximum circle at the top thereof, and the circular motion becomes elliptic and further elongated ellipse as the bottom-of the toothed plate 101 is approached.
  • the moving toothed plate 101 moves at the points A to D thereof upward from below with respect to the stationary toothed plate 1.00 so that stones within the crushing chamber 102 will be hulled or ground while being moved upward.
  • the outlet of the crushing chamber 102 is formed as a non-choking chamber 102a because both the toothed plates 100 and 101 are curved toward the frame 103 so that crushed stones will not be blocked when being let out.
  • the reference numeral 108 in Figure 1 denotes a spherical roller bearing, 109 indicates a bearing box, 110 is a side liner, 111 is a toggle sheet, 112 is a contact between the toggle sheet 111 and toggle plate 107, 113 is a toggle sheet block, and 114 indicates a hydraulic jack for extrusion of the toggle sheet block.
  • Such prior-art jaw crusher is used for coarse crushing, namely, for producing crushed stones of 35 to 80 mm in grain size. Such grain sizes are too large for the crushed stones to be used as concrete aggregates. Accordingly, such crushed stones are to be further crushed by a repulsion crusher or cone crusher to smaller grain size.
  • a repulsion crusher or cone crusher to smaller grain size.
  • the jaw crusher shown in Figure 1 assume that the raw-stone inlet is dimensioned to be 900 x 600 mm, the outlet clearance is 80 mm and the eccentric shaft is rotated at a speed of 250 rpm. In these conditions, raw stones of about 150 mm in maximum diameter supplied into the crushing chamber 102 will be crushed to the order of 80 mm in grain size and drop from the non-choking crushing chamber 102a.
  • the crushed stones of such grain size may not be used as concrete aggregates; they are crushed again.by a cone crusher to a grain size of about 5 to 30 mm.
  • a ball mill or rod mill must be used.
  • the conventional jaw crusher cannot crush raw stones of 150 to 300 mm in maximum diameter to a grain size of less than 5 to 30 mm.
  • a prior-art jaw crusher is known which can crush raw stones of less than 60 mm in grain size to a grain size of about 20 mm. Nevertheless, such jaw crusher is limited for use to raw stones of a grain size less than 60 mm; raw stones of more than 60 mm in grain size cannot be received by the crushing chamber.
  • the present invention has a primary object to overcome the above-mentioned drawbacks of the prior-art jaw crusher and to provide a jaw crusher which can crush relatively large raw stones to a grain size of less than 20 mm or a size of sand with a high power and in a short time.
  • a jaw crusher of which a stationary toothed plate and moving toothed plate driven by a motor, which form together a crushing chamber of a V-like longitudinal section and in which raw stones supplied are crushed, characterized according to the present invention, in that said stationary toothed plate is nearly vertically disposed while said moving toothed plate is installed as slanted about 15° to 25° from the vertical; a toggle plate installed at the bottom of a swing jaw to which paid moving toothed plated is fixed is placed higher on the swing jaw side and lower on a toggle sheet block side, a maximum compression point being set on a line extending from the toggle plate or in the proximity thereof within said crushing chamber; said moving toothed plate is curved at the portion below said maximum compression point toward the swing jaw; an eccentric shaft coupled to the top of said swing jaw is pivoted in the direction of the stationary toothed plate to convert the motion of the moving toothed plate toward the stationary toothed plate to a motion of striking from above ob
  • Said toggle plate 6 is placed higher on the side of the swing jaw 3, and lower on the side of the toggle sheet block 11.
  • the maximum compression point 7a within the crushing chamber 7 is set .on the line extending from the toggle plate 6 or in the proximity thereof.
  • the motion of the moving toothed plate 4 at the points E to H as shown in Figure 4 with respect to the stationary toothed plate 2 is converted to a motion from above obliquely downward, that is, to a emotion of striking raw stones in the crushing chamber 7 to the stationary toother plate 2.
  • the moving toothed.plate moves nearly straightly in the oblique direction at the maximum compression point 7a; the stones are thus crushed in the striking .chamber 7c.
  • the stones are rubbed in the compression chamber 7d in the upper portion of the crushing chamber 7, and they are subject to crushing in the striking chamber 7c. More particularly, in the compression chamber 7d, the stones are rubbed so that they are apt to be broken along its peculiar pattern, resulting in many flat and bar-shaped pieces. The bar-like pieces are crushed finely in the striking chamber 7c.
  • the lower stationary toothed plate 22 of the stationary toothed plate 2 is provided with an engagement protrusion 22b which is fitted into an engagement concavity 21a formed in the lower end of the upper stationary toothed plate 21.
  • the lower stationary toothed plate 22 has formed at the lower end thereof an engagement concavity 22c-into which a protrusion 14 fixed as welded to a sliding plate 13 is engaged.
  • the sliding plate 13 is installed to a screw 15 and movable..forward or reverse by the rotation of the screw 15.
  • the screw can be turned to move the sliding plate 13 forward.
  • the lower portion 22a of the lower stationary toothed plate 22 can be moved in the direction of the moving toothed plate 4.
  • the lower stationary toothed plate 22 has formed at the back thereof a recess 22d as shown in Figures 6 and 7, and the surface of the lower stationary toothed plate 22 is sloped at an angle a of about 28.5°.
  • This lower stationary toothed plate 22 should preferably be dimensioned to be about 730 x 280 mm, by way of example.
  • Said moving toothed plate 4 and upper stationary toothed plate 21 have teeth 4b and 21b, respectively, as shown in Figure 8, which are shaped to a height of 25 mm or so, for example.
  • the moving toothed plate 4 may be composed, like the stationary toothed plate 2, of two members. As shown in Figure 9, it is composed of an upper moving toothed plate 41 and lower moving toothed plate 42; the latter alone may be so constructed as to be replaceable.
  • the embodiment shown in Figure 10 comprises two swing jaws 3 to each of which a moving toothed plate 4 is tied.
  • a partition wall 17 is provided between these moving toothed plates 4 to form two crushing chambers 7.
  • These moving toothed plates 4 are alternately moved vertically.
  • the stationary toothed plate 2, toggle plate 6, etc. are constructed similarly to those of the jaw crusher shown in Figure 3.
  • each of the moving toothed plates 4 is installed as slanted about 15° to 25° from the vertical, each of the two toggle plates 6 is placed higher on the side of the swing jaw 3 with respect to the moving toothed plates 4, and lower on the side of the toggle sheet block 11, and a maximum compression point 7a is set on the line extending from each toggle plate 6 or in the proximity thereof within each of the crushing chambers 7.
  • Each of the moving toothed plates 4 is curved at the portion thereof below each of the maximum compression points 7a toward each of the swing jaws 3.
  • the motion of each of the moving toothed plates 4 toward the stationary toothed plate 2 can be converted to a motion of striking from above obliquely downward, and the moving toothed plate 4 each can be moved nearly straightly as slanted at each of the maximum compression points 7a, which are also the same as in the jaw crusher shown in Figure 3.
  • the two swing jaws 3 and moving toothed plates 4 are fitted to a single eccentric shaft 5 so that when one of the two moving toothed plates 4 is at the highest position, the other is at the lowest position. Namely, they are moved alternately like a pair of pedals of a bicycle.
  • Such construction is advantageous over a single moving toothed plate equal to two moving toothed plates 4, as follows: First, no large torque is necessary at time of start; during operation, a balance is well maintained; since when one of the moving toothed plates 4 strikes the stationary toothed plate 2, the other is away from the stationary toothed plate 2, the crushed stones in the crushing chamber 7 in which the moving toothed plate 4 is away from the stationary toothed plate 2 are forced to be discharged due to the vibration transmitted from the neighboring crushing chamber 7.
  • Figure 11 shows a variation of the present invention in which two moving toothed plates 4 are employed and they.are formed as a trapezoid of which the top side is shorter than the bottom side. It is intended by this construction to improve the crushing capacity by increasing the lower volume of the crushing chamber 7 to ac- comodate the increase in-volume of the raw stones when crushed.
  • the stationary toothed plates 2 provided opposite to these moving toothed plates 4 are formed as a trapezoid corresponding to the shape of the moving toothed plates 4 (this is not shown in Figure 11).
  • the moving and-stationary toothed plates 4 and 2 shown in Eigure 3 may, of couse, be shaped :similarly as trapezoid.
  • the raw stones are subjected to "rubbing action” in the crushing chamber 7 and compression chamber 7a, and to “crushing action” in the striking chamber 7c in the jaw crusher according to the present invention, thus permitting to crush relatively large stones to fine crushed stones or sand- like pieces, and with a comparable crushing capability to that of the prior-art jaw crusher for coarse crushdng.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP82111145A 1981-12-09 1982-12-02 Backenbrecher Withdrawn EP0081203A2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP19788381A JPS58101743A (ja) 1981-12-09 1981-12-09 ジヨ−クラツシヤ−
JP197883/81 1981-12-09
JP62482/82U 1982-04-28
JP6248282U JPS5933472Y2 (ja) 1982-04-28 1982-04-28 ジヨ−クラツシヤ−

Publications (1)

Publication Number Publication Date
EP0081203A2 true EP0081203A2 (de) 1983-06-15

Family

ID=26403521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111145A Withdrawn EP0081203A2 (de) 1981-12-09 1982-12-02 Backenbrecher

Country Status (2)

Country Link
EP (1) EP0081203A2 (de)
AU (1) AU9136082A (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749136A (en) * 1986-01-28 1988-06-07 Laurence V. Turley Jaw crushing apparatus
AU642557B2 (en) * 1990-11-29 1993-10-21 Boyd Motors Limited Rock crusher
EP0640394A2 (de) * 1993-08-31 1995-03-01 Nakayama Iron Works, Ltd. Backenbrecher für weiche Materialien wie Asphalt
AT399830B (de) * 1988-01-06 1995-07-25 Gewerk Eisenhuette Westfalia Backenbrecher
WO2006072323A1 (en) * 2005-01-10 2006-07-13 Meccanica Breganzese S.R.L. Crusher bucket for material resembling stone and the like
CN103934056A (zh) * 2014-03-28 2014-07-23 广西华锡集团股份有限公司再生资源分公司 一种颚式破碎机静颚板的固定装置
CN105728091A (zh) * 2016-05-09 2016-07-06 贵州万恒科技发展有限公司 内置驱动的颚式破碎机
CN106622459A (zh) * 2017-01-20 2017-05-10 方松 一种矿石碎矿系统
CN107262198A (zh) * 2017-07-03 2017-10-20 能诚集团有限公司 颚式破碎机
CN110339894A (zh) * 2019-06-20 2019-10-18 浙江神霸矿山机械有限公司 一种恒粒度除尘带减振功能的定量颚式破碎机及其方法
CN110404619A (zh) * 2019-08-01 2019-11-05 山东耀华特耐科技有限公司 应用玄武岩的浇注料的生产设备
CN111549845A (zh) * 2020-05-28 2020-08-18 贵州明阳宏远机械科技有限公司 一种液压制砂斗
CN112844539A (zh) * 2021-01-04 2021-05-28 赖亮明 一种具备防堵塞功能节省成本的碎石生产设备
CN113019515A (zh) * 2021-03-29 2021-06-25 新乡职业技术学院 一种基于建筑经济的废料回收装置
CN117065834A (zh) * 2023-10-07 2023-11-17 中国矿业大学(北京) 一种采矿用碎石筛分装置
CN118287184A (zh) * 2024-05-06 2024-07-05 山东明华新材料科技有限公司 一种耐火材料生产用颚式破碎机

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749136A (en) * 1986-01-28 1988-06-07 Laurence V. Turley Jaw crushing apparatus
AT399830B (de) * 1988-01-06 1995-07-25 Gewerk Eisenhuette Westfalia Backenbrecher
AU642557B2 (en) * 1990-11-29 1993-10-21 Boyd Motors Limited Rock crusher
EP0640394A2 (de) * 1993-08-31 1995-03-01 Nakayama Iron Works, Ltd. Backenbrecher für weiche Materialien wie Asphalt
EP0640394A3 (de) * 1993-08-31 1995-08-16 Nakayama Iron Works Ltd Backenbrecher für weiche Materialien wie Asphalt.
WO2006072323A1 (en) * 2005-01-10 2006-07-13 Meccanica Breganzese S.R.L. Crusher bucket for material resembling stone and the like
CN103934056A (zh) * 2014-03-28 2014-07-23 广西华锡集团股份有限公司再生资源分公司 一种颚式破碎机静颚板的固定装置
CN105728091B (zh) * 2016-05-09 2018-04-06 贵州万恒科技发展有限公司 内置驱动的颚式破碎机
CN105728091A (zh) * 2016-05-09 2016-07-06 贵州万恒科技发展有限公司 内置驱动的颚式破碎机
CN106622459A (zh) * 2017-01-20 2017-05-10 方松 一种矿石碎矿系统
CN107262198A (zh) * 2017-07-03 2017-10-20 能诚集团有限公司 颚式破碎机
CN110339894A (zh) * 2019-06-20 2019-10-18 浙江神霸矿山机械有限公司 一种恒粒度除尘带减振功能的定量颚式破碎机及其方法
CN110339894B (zh) * 2019-06-20 2024-02-13 浙江神霸矿山机械有限公司 一种恒粒度除尘带减振功能的定量颚式破碎机及其方法
CN110404619A (zh) * 2019-08-01 2019-11-05 山东耀华特耐科技有限公司 应用玄武岩的浇注料的生产设备
CN111549845A (zh) * 2020-05-28 2020-08-18 贵州明阳宏远机械科技有限公司 一种液压制砂斗
CN112844539A (zh) * 2021-01-04 2021-05-28 赖亮明 一种具备防堵塞功能节省成本的碎石生产设备
CN113019515A (zh) * 2021-03-29 2021-06-25 新乡职业技术学院 一种基于建筑经济的废料回收装置
CN117065834A (zh) * 2023-10-07 2023-11-17 中国矿业大学(北京) 一种采矿用碎石筛分装置
CN117065834B (zh) * 2023-10-07 2024-04-30 中国矿业大学(北京) 一种采矿用碎石筛分装置
CN118287184A (zh) * 2024-05-06 2024-07-05 山东明华新材料科技有限公司 一种耐火材料生产用颚式破碎机

Also Published As

Publication number Publication date
AU9136082A (en) 1983-06-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE DE FR GB IT LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

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Effective date: 19850701

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SHIDA, SHINROKU