WO2021086228A1 - Concasseur conique à inertie avec équipement de fixation de balourd - Google Patents

Concasseur conique à inertie avec équipement de fixation de balourd Download PDF

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Publication number
WO2021086228A1
WO2021086228A1 PCT/RU2020/000492 RU2020000492W WO2021086228A1 WO 2021086228 A1 WO2021086228 A1 WO 2021086228A1 RU 2020000492 W RU2020000492 W RU 2020000492W WO 2021086228 A1 WO2021086228 A1 WO 2021086228A1
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WO
WIPO (PCT)
Prior art keywords
crusher
unbalance
cone
tubes
inertial
Prior art date
Application number
PCT/RU2020/000492
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English (en)
Russian (ru)
Inventor
Константин Евсеевич БЕЛОЦЕРКОВСКИЙ
Original Assignee
Общество с ограниченной ответственностью "КС-ТЕХНОЛОГИИ"
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Publication of WO2021086228A1 publication Critical patent/WO2021086228A1/fr

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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
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C25/00—Control arrangements specially adapted for crushing or disintegrating

Definitions

  • the invention relates to the field of heavy engineering, to crushing and grinding equipment, in particular to cone crushers, and can be used in technological processes of the construction and mining industries.
  • an inertial cone crusher comprises a housing with an external cone and an internal crushing cone located inside it, whose surfaces facing each other form a crushing chamber.
  • On the main drive shaft of the inner crushing cone there is an unbalance set in rotation by the transmission.
  • a centrifugal force is created, forcing the inner cone to roll along the outer cone without a gap, if there is no processed material in the crushing chamber (at idle speed); or through a layer of crushed material.
  • the design of the crusher contains a counterbalance, in other words, an additional unbalanced unbalance, which is established in antiphase to the unbalance, and generates its own centrifugal force opposite to the centrifugal forces of the inner crushing cone and its unbalance. These forces cancel each other out, which leads to a decrease in vibration loads on the elements of the crusher. From the crushing chamber, the crushed material under its own weight enters the unloading zone.
  • One of the tasks is the maintenance of the cone crusher. As the crushing cone armor wears out, it needs to be replaced. For these purposes, the crushing unit is disassembled starting from the upper structural elements. The inner crushing cone with the main shaft, with the armor mounted on the cone, must be completely removed from the crusher body. After that, it is necessary to dismantle the worn out armor, install new armor. Then it is necessary to return the crushing cone to its original place so that the main shaft takes its place in the unbalance sleeve.
  • the crusher stops.
  • the main shaft can be at a certain angle of inclination from the vertical axis of the crusher, as it is under the influence of the unbalance weight. This is due to the design features of cone inertial crushers.
  • a cone crusher of known construction is additionally equipped with a special device for holding the main shaft in a central position.
  • a device for fixing an unbalance is installed - a lock, which, as shown in figure 4, included in the prototype description kit, consists of the following elements.
  • the two levers are interconnected by a spacer, each of the levers ends with a cylindrical pin.
  • the levers rest on a detent post, which is positioned between the levers so that the levers are positioned between the upper and lower sliders.
  • the levers are held in place by the top and bottom sliders that move along the stud.
  • the stud is held onto the post by means of the upper and lower stud mountings.
  • the hairpin has a multidirectional thread with the same pitch, so that when the hairpin is rotated in one direction, the upper and lower sliders move or towards each other, and when the hairpin is rotated in the other direction, in the opposite direction from each other.
  • the sliders move at the same speed.
  • two special receiving holes are made for fingers, corresponding to them in diameter and depth.
  • the holes in the unbalance must be made at a height located in the working range of movement of the levers.
  • the device works as follows: after stopping the crusher and unloading the finished product, the installation of the fixing device on the crusher begins, in the alignment of the service hatch. First, the unbalance is rotated to a certain position.
  • the retainer post is fixed on the crusher body, in the alignment of a special service hatch.
  • the levers are installed in the unbalance, and since the unbalance is at an angle of inclination a from the vertical axis of the crusher, the levers are at an angle a to the horizontal plane.
  • a retainer post is placed between the levers so that the levers are between the sliders.
  • the retainer post is fixed on the crusher body, in the alignment of the service hatch.
  • the pin is brought into rotation, which has a multidirectional thread, which in turn drives the sliders, which are gradually shifted towards each other so that the levers are clamped between the sliders.
  • the design of the stud assembly with the stud fasteners that hold it on the rack is implemented in such a way that not only the actual fixation of the levers on the rack is ensured, but precisely their fixation in a strictly horizontal position.
  • the unbalance rigidly connected with the levers, follows their movements, and also turns out to be fixed in a certain position. Since the main shaft is located in the unbalance bushing, it changes its position in space along with the unbalance itself. When the levers are in a strictly horizontal position, the main shaft takes a strictly vertical position, in accordance with the vertical axis of the crusher. After rigid fixation of the unbalance, the associated unbalance bushing, and bringing the main shaft to the position coinciding with the vertical axis of the crusher, the main shaft together with the internal crushing cone can be freely lifted up and removed from the bushing and from the crusher.
  • the prototype has the following disadvantages.
  • the main parts of the retainer are not in the crusher all the time, they must be assembled every time before use, and dismantled after use. To mount / dismantle the latch, unscrew a large number of bolts and remove the hatch cover.
  • the retainer elements must be stored separately from the crusher between uses.
  • the fastening system must perform the function of rigidly fixing the unbalance when the main shaft is removed, and ensure that the main shaft of the crusher is in a strictly vertical position.
  • the fixing device must fit into the specific design of the cone inertial crusher with the modernized drive in the form of a disc clutch. It must be compact and take up the space left for it in the space of the crusher body.
  • Cone inertial crusher with a device for fixing the unbalance which contains a housing supported on the foundation through elastic shock absorbers, an outer cone and an internal crushing cone placed inside it on a spherical support, forming a crushing chamber between themselves, an unbalance is mounted on the drive shaft of the inner crushing cone using a sliding sleeve with the possibility of adjusting its center of gravity relative to the axis of rotation, the unbalance sliding sleeve is connected to a transmission disc clutch, which is connected to the gear wheel and the counterbalance, which, in turn, are mounted on the sliding sleeve in such a way that the said gear, the counterbalance and the slip sleeve form a single movable "dynamic unit ", which is installed through a support disk on a fixed axis of rotation supported on a flange, the flange is rigidly fixed in the bottom of the crusher body, and the crusher body has at least one service hatch at the level of the unbalance, in the alignment of which there is a
  • Inertial cone crusher has the following additional features.
  • a cone inertial crusher characterized in that the central and lateral tubes are interconnected by bearing bridges located at the edges of the tubes, and the guide tubes are interconnected by guide bridges located at the edges of the guide tubes.
  • Inertial cone crusher characterized in that the guide webs and the bearing webs have the same curvature profile.
  • Inertial cone crusher characterized in that the guide tubes are located perpendicular to the central axis of the crusher.
  • Inertial cone crusher characterized in that the central and lateral tubes have the same length and the same outer diameter, equal to the inner diameter of the guide tubes, while the three guide tubes have the same diameters and the same length, which is less than the length of the central tube.
  • Inertial cone crusher characterized in that on the side of the central tube facing the hatch there is a cylindrical internal plug with an internal thread corresponding to the external thread of the lead screw, and on the other side The central tube has a plug with a cavity corresponding to the shape of the conical retainer.
  • Inertial cone crusher characterized in that a spring-mounted slider is installed inside the central tube to fix the lead screw.
  • Inertial cone crusher characterized in that the side tubes on each side have plugs with a cavity corresponding to the shape of the conical retainer.
  • Inertial cone crusher characterized in that two conical clamps are installed on the hatch cover on the side of the inner cavity of the crusher, the location of which in the vertical plane repeats the location of the side tubes.
  • Inertial cone crusher characterized in that the retainer is in the idle position when the central and side tubes are located close to the hatch cover, and the retainers are in the side tube plugs.
  • Cone inertial crusher characterized in that the clamp is in the working position when the central and side tubes are close to the unbalance bracket, the conical clamps are located in the tube plugs, and the unbalance, the unbalance bushing and the main shaft of the crusher installed in it occupy a strictly vertical position corresponding to the vertical crusher axles.
  • FIG. 1 shows a cross-sectional diagram of an inertial cone crusher with the retainer installed in the idle position.
  • FIG. 2 shows a diagram of a cone inertial crusher in cross-section with the retainer installed in the working position.
  • FIG. 3 shows a diagram of a cone inertial crusher in cross section with a lock in the working position.
  • FIG. 4 shows a diagram of a fixed unbalance cone crusher.
  • FIG. 5 shows the relative position of the retainer elements in relation to the crusher elements.
  • FIG. 6 shows the structure of the retainer in section.
  • the invention is structurally implemented as follows.
  • the body 1 is installed on the foundation 9 through elastic shock absorbers 10.
  • the inner crushing cone 3 is supported on a spherical support 4.
  • the outer cone 2 is rigidly fixed in the adjusting ring.
  • a receiving hopper is installed on top, into which the crushed material is fed.
  • On the main shaft 5 of the internal crushing cone 3 installed unbalance sliding sleeve 12 and unbalance 6.
  • the sleeve is connected to the transmission clutch 13.
  • the transmission clutch 13 is connected to the "dynamic unit", including the gear 20, the counterbalance 11 and the slip sleeve 14.
  • the “dynamic unit” is installed on the fixed axis of rotation 23 through the support disk, with the ability to rotate around it.
  • the axis of rotation 23 includes a flange, which is rigidly fixed in the bottom of the housing 1 by means of fastening bolts.
  • the axis of rotation 23 and the flange can be made as two different parts, rigidly connected to each other, or as one integral part that acts as a bearing fixed support for a movable "dynamic unit”.
  • the "dynamic unit” is connected via a gear 20 and a gear 19 to a drive shaft unit 17 through which torque is transmitted from the engine.
  • the hatch cover 25 has a hole with a threaded bushing 27 installed.
  • the lead screw 34 is inserted into the hole and secured in the threaded bushing 27 by means of a nut 26, as shown in FIG. 3
  • the retainer 16 as shown in FIG. 6 includes a central tube 31, and two side tubes 37, each of which is inserted into its corresponding guide tube 32.
  • the tubes are inserted into each other in a sliding fit with a guaranteed gap.
  • Central 31 and side 37 tubes are interconnected by supporting bridges 38 located at the edges of the tubes.
  • the guide tubes 32 are also interconnected by guide webs 39 located at the edges of the tubes.
  • the guide tubes 32 are attached from the inside to the body 1 perpendicular to the central axis of symmetry of the crusher, and are designed to fix the central 31 and lateral 37 tubes in a certain position inside the crusher with the possibility of their longitudinal movement.
  • the latch 16 must be located so that in the working cycle of the crusher it does not come into contact with the unbalance 6 at the point of its greatest deviation from the central axis of the crusher, that is, does not interfere with its operation; and in the non-working cycle it performed the functions of fixing the unbalance 6.
  • the central 31 and side 37 tubes have the same length and the same outer diameter equal to the inner diameter of the guide tubes 32.
  • the three guide tubes 32 have the same diameters and the same length, which is less than the length of the central tube 31.
  • FIG. 6 On one side of the central tube 31 facing the hatch 25 there is a cylindrical inner plug 33 with a thread 35, FIG. 6.
  • the plug 33 is designed so that the lead screw 34 can enter the interior of the central tube 31, as shown in FIG. 3.
  • a slider 28 on a spring 29 is installed inside the central tube 31 to fix the lead screw 34.
  • Each side tube 37 has similar plugs 30 on each side so that each tapered retainer 22 and 24 can fully fit inside its corresponding side tube 37.
  • the lead screw 34 is screwed all the way into the central tube 31, so the central tube 31 fits snugly against the manhole cover 25 from the inside, and the conical clips 24 of the manhole cover enter the side tubes 37.
  • the invention works as follows.
  • the crushing unit stops.
  • the main shaft 5 stops in any random position and turns out to be at an angle of inclination to the vertical axis of the crusher, being under the influence of the weight of the unbalance, FIG. one.
  • the maintenance personnel rotates the unbalance 6 around its axis in such a way that the bracket 18 on the unbalance 6 is directed strictly to the service hatch 25 and to the lock 16. In this position, the unbalance 6 turns out to be maximally deflected towards the hatch cover 25.
  • the lock 16 is in the idle position, as far as possible from the unbalance 6, and close to the hatch cover 25, and the conical locks 24 are completely located in the plugs 30 of the corresponding side tubes 37.
  • the lead screw 34 is completely screwed into the central tube 31, its end abuts against the slider 28.
  • the lead screw 34 is set in rotation using a hand or power tool.
  • the lead screw 34 rotates in the thread 35 of the plug 33 of the central tube 31, due to which the plug 33 itself, the central tube 31 and the side tubes 37 rigidly connected to it by the bridges 38 begin to move from the hatch cover 25 towards the unbalance 6.
  • the lead screw 34 continues to rotate, respectively, the central 31 and lateral 37 tubes continue to move, as a result of which the tubes are pressed on the unbalance 6, forcing it to change its position.
  • the unbalance 6 under the pressure of the tubes, begins to move and ultimately occupies a strictly vertical position corresponding to the central axis of the crusher.
  • the shaft 5 Since the main shaft 5 is located in the unbalance sleeve 12, the shaft 5 changes its position in space together with the unbalance 6.
  • the main shaft 5 together with the inner crushing cone 3 can be freely lifted up and removed from the sleeve 12 and from the crusher. In this case, the unbalance 6 and the unbalance sleeve 12 remain fixed in place.
  • the length of the central tube 31 and side tubes 37, as well as the length of the guide tubes 32, are selected based on the size and configuration of the body of a particular crushing unit.
  • the ratio of the lengths of the central 31 and guide tubes 32 is selected in such a way that in the idle position the web 38 abuts against the hatch 25, and the carrier and guide webs touch each other from the side of the unbalance 6 in FIG. 1, and in a fixed position they were in contact from the side of the hatch 25, Fig. 3.
  • the safety factor of the structure of the retainer 16 is calculated specifically for each standard size of the crusher and must withstand the corresponding weight of the unbalance 6.
  • the work of the latch 16 in the reverse order is similar.
  • the shaft 5 is inserted from above into the sleeve 12 and takes its working position.
  • the lead screw 34 rotates in the opposite direction, the central tube 31 and the side tubes 37 associated with it, moving towards the hatch 25, move away from the unbalance 6, the conical clamps 21 and 22 come out of the tubes.
  • the main shaft 5 gradually takes a position deviated from the central axis of the crusher and due to the action of the weight of the unbalance 6.
  • the non-removable design principle of the retainer is its main advantage.
  • the retainer is mounted in the crusher body once and for all, so there is no need to mount / remove the retainer before each use.
  • the risk of dirt and dust getting inside the crusher is also eliminated, since there is no need to open the manhole cover.
  • the retainer can be used in the manufacture of crushers, for their initial assembly.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)

Abstract

L'invention se rapporte au domaine de l'industrie mécanique lourde et peut être utilisée dans des processus industriels dans les domaines de la construction et de l'industrie d'enrichissement minier. Ce dispositif comprend un corps reposant sur des fondations via des amortisseurs élastiques, un cône externe et un cône de concassage interne disposé dans celui-ci sur un support sphérique, lesquels forment entre eux une chambre de concassage. Un balourd est disposé sur l'arbre d'entraînement du cône de concassage interne via un insert de coulissement, et son centre de gravité peut être ajusté par rapport à l'axe de rotation. L'insert de coulissement du balourd est connecté à un embrayage de transmission à disque qui est connecté à une roue dentée et à un contre-balourd, lesquels sont disposés sur l'insert de coulissement de sorte que ladite roue dentée, le contre-balourd et l'insert de coulissement forment une "unité dynamique" mobile unique qui est installée via un disque de support sur un axe de rotation immobile reposant sur le flanc. Le flanc est fixé rigidement à la partie fond du corps du concasseur. Le corps du concasseur comprend une trappe de service. Le concasseur comprend un équipement pour fixer le balourd. Le couvercle de la trappe comprend une ouverture où est installée une vis tournant dans un alésage d'un bouchon du tube central. Il est ainsi possible de simplifier et d'améliorer la fiabilité du dispositif de fixation du balourd.
PCT/RU2020/000492 2019-10-28 2020-09-23 Concasseur conique à inertie avec équipement de fixation de balourd WO2021086228A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2019134580A RU2724259C1 (ru) 2019-10-28 2019-10-28 Конусная инерционная дробилка с приспособлением для фиксации дебаланса
RU2019134580 2019-10-28

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1069852A1 (ru) * 1982-06-11 1984-01-30 Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский И Проектный Институт Механической Обработки Полезных Ископаемых Конусна инерционна дробилка
US4452401A (en) * 1981-08-31 1984-06-05 Zarogatsky Leonid P Inertia cone crusher
WO2014166539A1 (fr) * 2013-04-11 2014-10-16 Sandvik Intellectual Property Ab Concasseur à cône doté d'un ensemble de centrage d'arbre principal
RU2587704C1 (ru) * 2015-03-13 2016-06-20 Константин Евсеевич Белоцерковский Конусная инерционная дробилка с модернизированным приводом
RU2665104C1 (ru) * 2017-07-06 2018-08-28 Константин Евсеевич Белоцерковский Конусная инерционная дробилка с устройством для фиксации дебаланса

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU808130A1 (ru) * 1977-08-29 1981-02-28 Всесоюзный Ордена Трудового Красногознамени Научно-Исследовательскийи Проектный Институт Механическойобработки Полезных Ископаемых Конусна инерционна дробилка
SU1085624A1 (ru) * 1981-05-04 1984-04-15 Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский И Проектный Институт Механической Обработки Полезных Ископаемых Конусна инерционна дробилка

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452401A (en) * 1981-08-31 1984-06-05 Zarogatsky Leonid P Inertia cone crusher
SU1069852A1 (ru) * 1982-06-11 1984-01-30 Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский И Проектный Институт Механической Обработки Полезных Ископаемых Конусна инерционна дробилка
WO2014166539A1 (fr) * 2013-04-11 2014-10-16 Sandvik Intellectual Property Ab Concasseur à cône doté d'un ensemble de centrage d'arbre principal
RU2587704C1 (ru) * 2015-03-13 2016-06-20 Константин Евсеевич Белоцерковский Конусная инерционная дробилка с модернизированным приводом
RU2665104C1 (ru) * 2017-07-06 2018-08-28 Константин Евсеевич Белоцерковский Конусная инерционная дробилка с устройством для фиксации дебаланса

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