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 invention relates to a jaw crusher, in particular in the form of a pendulum swing crusher or a crank swing crusher with oscillating crushing jaws arranged in a housing with at least one crushing compartment, fixed crushing jaws, setting of the crushing gap and a drive shaft with eccentrics and displacement.
• Such jaw crusher (DE-OS 1 607 514.2) have two crushing jaws, one of which is usually fixed and the other is arranged in an oscillating manner.
• the material to be crushed is crushed in the crushing compartment during the periodic closing of the crushing jaw, which swings around a pivot point, between the two crushing jaws, especially as a result of pressure, and falls after repeated use
• both crushing jaws are accommodated in separate crushing compartments, so that pieces of material which have larger dimensions than a crushing compartment cannot be comminuted in such units.
• Another disadvantage is that the drive shaft shown is very unfavorable to manufacture due to the spaced and circumferentially offset cams and, moreover, cannot be adapted to any changed requirements. Rather, the entire drive shaft then has to be replaced and the other components also have to be adapted so that changed operation is possible.
• DE-OS 199 56 200.8-23 has the same problems, only that despite two or three crushing jaws arranged next to one another, a continuous crushing compartment is now used, so that much larger individual pieces of material can be drawn into the crusher and shredded. If adjustments and changes are necessary, the drive shaft must also be replaced with a new one, which is also necessary if the corresponding wear has occurred.
• the invention is therefore based on the object of providing a jaw crusher which is simple to equip and convert with regard to the eccentricity and which only needs to be overhauled or supplemented with wear in relation to the individual parts.
• the drive shaft is designed as a rod which runs uniformly and which is releasably and interchangeably assigned to the eccentric designed as eccentric bushings.
• the exchangeable eccentric bushings are designed to be displaceable and rotatable on the drive shaft in the released state. Since, according to the invention, a continuous rod is used as the drive shaft, the individual eccentric bushes can each be easily pushed into the necessary working position, brought there in the circumferential direction into the intended position and then fixed in order to effectively perform their service.
• the invention provides that the eccentric bushings are releasably connected to the drive shaft via a tongue and groove connection. Seen over the circumference, several such tongue and groove connections can be specified, so that when the eccentricity is set, the user is given the opportunity to bring the eccentric bushes into an optimal position for their intended task.
• the invention provides that the eccentric bushes are designed to be detachably connected to the drive shaft and the swing tube assigned to the oscillating crushing jaw.
• the individual crushing jaw is thus preassembled so that it can also be attached to the eccentric bushes to connect the swingarm tube and bring it into the appropriate movement.
• the displacement of the drive shaft which is a continuous rod
• the displacement of the drive shaft has roller bearings assigned to the side walls of the housing and bearing supports with roller bearings arranged between the individual crushing jaws, a single continuous crushing compartment being realized.
• the continuous drive shaft is securely supported not only on the side walls over the length, but at the same time also on the spaced-apart bearing supports, which do not lead to a subdivision of the crushing compartment, but are only realized as bearing supports with roller bearings.
• the bearing brackets suitably have pillow block bearings to ensure the respective support and guide position for the continuous drive shaft.
• the roller bearings preferably the roller bearings assigned to the side walls
• the roller bearings are equipped with a labyrinth seal which have ring grooves fitted with O-rings with respect to the drive shaft.
• the O-rings and the safe arrangement of the O-rings in the ring grooves ensure that the lubricant stays exactly in the area where it is needed for the permanently safe guidance of the drive shaft. Long service lives of such devices are advantageously guaranteed by this special training.
• the total thickness of the walls of the housing can be kept within advantageous limits if the bearing supports are assigned compartment walls which divide the housing and which are designed to reach half the height of the side walls in the lower third.
• compartment walls in which the additional compartment walls are curved with the upper edge, the walls with the upper edge being curved, because in this way the optimal support is provided, but at the same time the separation by the Compartment walls can be placed at a point as deep as possible.
• the crushing gap of such crushers has to be adjusted due to wear, but often also for other reasons. For this purpose it is known to bring the adjusting wedge into the respective position and fix it with the aid of plates.
• the invention provides that, for automation and for a better execution of the entire shredding process, the setting of the crushing gap with its adjusting wedge has a hydraulic adjusting cylinder.
• the hydraulic adjusting cylinder ensures that the adjusting wedge is pushed into the corresponding position or raised, depending on whether you want to increase or decrease the crushing gap.
• the housing has a substructure with a compartment arranged between the longitudinal and cross members for the discharge conveyor and a gooseneck extension for the drive motor.
• a complete unit is then specified, with the crushed material leaving the crusher or the individual sub-areas of the crusher falling onto a discharge conveyor and being transported further by this, for example to a truck.
• the gooseneck approach enables the drive motor to be moved into one position bring where it is safely housed and can act safely on the drive wheels of the crusher, while the discharge conveyor is given an area where it can safely pick up and transport the crushed material without leaning on the ground.
• the invention provides that the discharge conveyor is designed to be pivotable, preferably 90 °, at the end of the substructure opposite the gooseneck neck, conveyor accessories being equipped with an additional, own pivoting device.
• the respective conveyor accessory part or several such parts are swiveled via the additional swiveling device in such a way that it is possible to swivel the corresponding swiveling end of the discharge conveyor practically up to 90 °.
• the compact transport unit is thus realized, which makes it possible to quickly return to the working position at the place of use so that the shredding work can be started quickly.
• Very large individual pieces can advantageously be gripped by the crushing jaws, because it is namely provided according to the invention that two or more vibrating crushing jaws, which are driven via the common drive shaft supported by intermediate bearings, in a common crushing compartment are arranged, wherein the crushing jaws can be moved intermittently via the common drive shaft.
• a common, continuous crusher housing or a crusher compartment is therefore provided for two, three or four crusher jaws. So far, the individual housings have been lined up with the crushing jaws, so that there are no large inlet openings, but many small ones. It is only with the help of the solution according to the invention that it is possible to pick up even large chunks to be broken and to effectively shred them without causing problems.
• the continuous drive shaft, to which the individual vibrating crushing jaws are assigned is supported via intermediate bearings in such a way that the more or less long drive shaft cannot be impaired.
• the crushing compartment with the drive shaft is arranged on a support frame in the longitudinal direction of the drive shaft and is provided with a complete housing or housing with material guidance for the material to be crushed.
• a jaw crusher of this kind can be moved from one place of use to another, whereby the complete housing ensures that imported mountains and other materials that are to be shredded cannot endanger the environment, so that one Jaw crusher can also be easily moved from one location to another. Separate security measures are then not necessary.
• the invention additionally providing that the eccentric bushings rotatably arranged on the eccentric cams can be connected to the eccentric cam and the associated rocker tube according to the desired eccentricity are trained to then quickly and safely start operating.
• the individual eccentric bushing can be rotated and shifted into a position which does not correspond to the neighboring one or which has a more or less larger eccentricity value, in order in this way with the same crusher to possibly also different crushed material at the same time , if there is a need to be able to manufacture.
• the invention is characterized in particular by the fact that a jaw crusher is created which, regardless of its particular design, can advantageously be constructed with respect to the eccentricity.
• the drive shaft is designed as a continuous rod and the eccentrics as eccentric bushings, which can be moved on the respective drive shaft and then rotated into the correct position in order to achieve the desired eccentricity. It is also possible to work similarly in the case of existing drive shafts provided with eccentric cams, namely by arranging the eccentric bushes on these eccentric cams and rotating them into the respective position in order to adjust the eccentricity in a targeted manner.
• Figure 2 shows the continuous drive shaft, with cut
• FIG. 3 a side view of a swing arm crusher, partially cut
• FIG. 4 shows the connection area between the bearing supporting the drive shaft and an adjacent rotating bearing with a rocker connection
• FIG. 5 shows a plan view of a swing arm crusher
• FIG. 66 shows a front view of a swing arm crusher
• FIG. 7 shows a crushing jaw of a ball rocker
• Figure 9 shows a substructure for a jaw crusher in side view, F Fiigguurr 1100 equipped with a complete jaw crusher
• FIG. 1 shows a pendulum swing crusher or a jaw crusher 1 with its housing 2 and a crushing compartment 3.
• the invention essentially assumes that only one crushing compartment in the longitudinal direction, as will be explained with reference to the further figures, should be realized in order to be able to safely break pieces of different sizes.
• the oscillating crushing jaw is designated by 4 and the fixed crushing jaw by 5, wherein the fixed crushing jaw 5 can form with the side wall of the housing 2.
• the individual crushing jaws 4, 5 are placed in relation to one another in such a way that there is a favorable intake and crushing angle between the two. In this way, jumping out of the pieces of material or other crushed material is prevented at the same time.
• the crushing gap can be set essentially via the crushing gap setting 6, here consisting of the setting wedge 7 and the hydraulic setting cylinder 8. As can be seen in FIG. 1, the setting wedge 7 can be pulled out or pushed in via the hydraulic setting cylinder 8 in order to specifically achieve the setting of the crushing gap 6 in this way.
• the swing arm crusher two pressure plates 9 and 10 are used, which are accommodated in specially designed pressure plate bearings 11 or are arranged in such a way that when the pull rod 15 is actuated or when lifting and lifting it ensures that the swing arm jaw 4 performs the intended movement ,
• the spring-loaded rod 12 and the return spring 13 ensure that the crushing jaw 4 is retracted into the starting position with each oscillating movement sequence.
• the pull rod 15 is connected to the swing arm tube 16, the swing arm tube 16 surrounding the drive shaft 19, which receives the targeted movement sequence by eccentric cams or here by eccentric bushes 20 serving as eccentric 18.
• the displacement 17 is realized in particular on the side walls 28, 29. Details on this will be explained further below.
• the individual eccentric bushes 20 are displaceable on the drive shaft 19 and can be fixed there via a tongue and groove connection 23 or a similar fastening option. It is advantageous here that the different eccentricities can be set by rotating the eccentric bushing 20 on the drive shaft 19, and this for each jaw system 4, 5.
• a jaw covering 24 is provided, which can be easily exchanged via a covering 25, because locking wedges 26 are used for this purpose, which allow easy loosening.
• FIG. 1 shows a swing arm crusher
• FIG. 3 shows a crank arm crusher, an eccentric bushing or a plurality of eccentric bushings 20 also being arranged on the drive shaft 19 so as to be displaceable and fixable. This is followed by the roller bearing 30 and finally that Swing arm tube 16.
• FIG. 1 shows a swing arm crusher
• FIG. 3 shows a crank arm crusher, an eccentric bushing or a plurality of eccentric bushings 20 also being arranged on the drive shaft 19 so as to be displaceable and fixable. This is followed by the roller bearing 30 and finally that Swing arm tube 16.
• FIG. 2 shows the continuously constant drive shaft 19 provided for the jaw crusher 1 according to FIG. 1 and also FIG. 3.
• Eccentric bushes 20, 20 ', 20 are arranged on this drive shaft 19 and are secured in this way by roller bearings 32, 32', 32" that smooth movement is ensured.
• bearing supports 31 are provided, once in the form of a pillow block 33 or a floating bearing 34 or also a fixed bearing 35, so as to ensure uniform support of the drive shaft 19 over the length.
• the swinging jaws 4, 4 ', 4 "and the swingarm tubes 16, 16', 16", which are only indicated here, ensure that the movement of the drive shaft 19 is passed on uniformly via the eccentric bushes 20 and the swingarm tubes 16.
• FIG. 2 and FIG. 4 clearly shows that particularly favorable guiding and lubrication of the drive shaft 19 is possible by implementing labyrinth seals 36 in the area of the roller bearings 30, 32, the O-rings 37 arranged in annular grooves 38 relative to the drive shaft 19 have, which can ensure appropriate sealing of the individual sections.
• compartment walls 39 may be realized in areas of the bearing supports 31 for static reasons can be, but are not led up to the height of the side walls 28, 29, but max. up to 50% of their amount. Above all, however, it is conceivable and advantageous to realize them only in the lower third, the upper edge 40 running in an arc shape in order to achieve favorable static values.
• FIG. 5 shows a jaw crusher 1, which is shown in side view in FIG. 6 in a top view.
• the drive shaft 19 is driven here via the flywheel and drive pulley 21, 55 in order to generate the corresponding oscillating movements of the crushing jaw 4 via it and the eccentric bushes 20 and the swing arms 16.
• the individual jaw linings 24 abutting one another closely, so that the continuous crushing compartment 3 can be realized.
• the side walls are designated, which in the upper part, ie. H.
• the roller bearings 30 are assigned, which has already been explained above.
• the bearing brackets 31, 31 ' are also to be mentioned, which ensure uniform and secure support of the drive shaft 19, while the actual crushing compartment 3 has a continuously large mouth hole or an opening.
• FIG. 7 shows a single oscillating crushing jaw 4, it becoming clear here that the jaw covering 24 is held in the respective position by means of a relatively simple covering attachment 25, in order to be able to easily replace it when wear has occurred. While a relatively short fixing screw 27 is used at the bottom, a longer fixing screw 27 'is necessary in the upper area.
• the tongue and groove connection 23 between the eccentric bushing 20 and the drive shaft 19 can also be seen in this illustration according to FIG. 7.
• FIGS. 8 a and 8 b show another embodiment of the drive shaft 19, here in the form of eccentric cams 44 formed at a distance Eccentricity is nevertheless possible here, because eccentric bushes 45 can be pushed onto the eccentric cams 44, each of which is brought into a position which in extreme cases even brings the eccentricity to zero or to any value.
• FIG. 9 shows a substructure 48 on which an entire jaw crusher 1 can be constructed as illustrated in FIG. 10.
• This substructure 48 consists of side members 49 and cross members 50, the connecting pieces 47 being supported on sliding runners 61 10, so that a compartment 51 is formed in between, in which the discharge conveyor 52 according to FIG. 10 can be arranged.
• the support frame 60 of the substructure 48 is not a continuous flat surface, but rather a 15 gooseneck extension 53 is realized in the front area so that the drive motor 54 can be arranged well in order to act on the drive pulley 55 via it.
• a support plate 59 is formed on the end 56 lying opposite the gooseneck extension 53, on which conveyor accessories 57 according to FIG. 10
• FIG. 11 shows a front view or a rear view, it becoming clear 30 that the entire jaw crusher 1 can be securely arranged on this substructure 48, which can either be shifted on the lying surface or on the floor via the skids 61 or also over one Low loader or similar can be loaded to transport it from one job to another.
• a jaw crusher is expediently provided with a water mist sprinkler (Bönsch pipe) in order to limit the formation of dust or to ensure safe precipitation.
• the water mist nozzles can be integrated in the side and the other walls of the housing or in the top cover in order to achieve an even influence.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Food Science & Technology (AREA)
• Crushing And Grinding (AREA)
• Baking, Grill, Roasting (AREA)

Priority Applications (5)

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Citations (3)

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• 2002
  • 2002-02-07 DE DE10205092A patent/DE10205092A1/de not_active Withdrawn
• 2003
  • 2003-02-04 BR BRPI0307464-1A patent/BR0307464B1/pt not_active IP Right Cessation
  • 2003-02-04 EP EP03704283A patent/EP1476251B1/de not_active Expired - Lifetime
  • 2003-02-04 CN CN03803517.0A patent/CN1630558B/zh not_active Expired - Fee Related
  • 2003-02-04 WO PCT/DE2003/000303 patent/WO2003066219A1/de active IP Right Grant
  • 2003-02-04 DE DE50308788T patent/DE50308788D1/de not_active Expired - Lifetime
  • 2003-02-04 AU AU2003206650A patent/AU2003206650A1/en not_active Abandoned
  • 2003-02-04 AT AT03704283T patent/ATE380592T1/de not_active IP Right Cessation

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