WO2010130324A1

WO2010130324A1 - Fully mobile crushing system having crawler track device

Info

Publication number: WO2010130324A1
Application number: PCT/EP2010/002337
Authority: WO
Inventors: Heinz-Günther JÖRISSEN
Original assignee: ThyssenKrupp Fördertechnik GmbH
Priority date: 2009-05-13
Filing date: 2010-04-16
Publication date: 2010-11-18
Also published as: DE102009021168A1

Abstract

The invention relates to a mobile crushing system (2) for use in open-cast mining for comminuting raw material after obtaining the same. The crushing system comprises a support frame (4), a chassis device (6) having a plurality of driven crawler tracks (7), a crushing device (8) connected to the support frame (4), a transport feeder device (10) for feeding feedstock (G) to the crushing device (8) and a discharge transport device (12) for evacuating the comminuted feedstock (G'). The invention proposes that a chassis device having a total of four crawler tracks (7) is designed.

Description

Fully mobile crushing plant with caterpillar track

Description:

The present invention relates to a mobile or fully mobile crushing plant according to the preamble of patent claim 1. Such a mobile crushing plant is already known under the title shredding device from EP 1 615 723 B1. In this document, a crushing device, designed as (fully) mobile or semi-mobile unit, especially for use in opencast mining and in the recycling industry, described. This crushing plant has all generic

Features of the preamble of the present invention and is characterized inter alia by the fact that the support structure has a component in the form of a horizontal U. Main purpose, both for the object of the invention as well as for the subject of the described prior art, are large coal, ore or oil sand mines, the said plant according to the invention is particularly advantageous used when the extraction of raw materials, for example, under freezing conditions or using

Blasting agents and backhoes for immediate subsequent loading of

Crushing plant should be made.

The present invention has for its object to provide a fully mobile crushing plant, which is improved in terms of their suspension properties. Under a fully mobile crushing plant according to the invention, a crushing plant is understood, which is characterized in that during the entire crushing operation (crushing operation) - the recovery progress continuously following - by parallel or simultaneous operation of the crawler tracks (especially without stopping the same) along can move a mining front. Basis for the inventive considerations is a fully mobile crushing plant with a service weight in the range of 1500 tons or more, which is designed for large flow rates (> 7,500 tons / hour) accordingly. In this case, the chassis of the fully mobile crushing plant is designed as a crawler chassis whose caterpillar longitudinal axes parallel to the conveying direction of

Feed conveyor extend.

The present object is achieved in that a generic vollmobile crushing plant has a chassis device comprising at least four individual crawler tracks. Characterized in that an original suspension device, which generally comprises a total of two mutually parallel crawler tracks, in four individual

Crawler tracks is divided, with two crawler tracks across the

The longitudinal direction of the crushing plant are arranged opposite each other as a pair of crawler tracks and wherein the per landing gear side by side aligned running gears in their longitudinal direction as far as possible to the

End areas of the mobile crushing plant are arranged out, the required

Stability of the crushing plant and required for the transmission of soil pressures effective total length of the crawler undercarriage in a simple manner by four shorter crawler tracks with in total significantly shorter

Crawler length can be realized at the same time much longer span. With

Advantage is in particular that facing the hopper

Caterpillar pair as far out and as close as possible

Loading container arranged. The inventive design, in particular the distance of a crawler track to the loading container of

Feed conveyor can be shortened considerably, without, as with a

Two crawler undercarriage would be necessary to increase the corresponding track length significantly. Also, by the inventive design the

Load distribution to the individual caterpillar components distributed better and thus occurring wear is reduced and ground pressure optimized. Furthermore, the inventive (four) crawler chassis (or the inventive mobile

Crushing plant with a trained caterpillar track) are much easier and cheaper to run as a same requirements sufficient two-crawler chassis. The crawler undercarriage of the crushing plant according to the invention allows the same driving movements (driving maneuvers) as the two-crawler chassis of a conventional crushing plant, namely turning on the spot (right and left caterpillars move in opposite directions), the narrowest possible cornering (one crawler is stationary, the other is driven ) and any larger radii of curvature until straight ahead, each independent of the instantaneous loading state of the crushing plant and the load of the individual caterpillars.

According to the invention, different embodiments of the total of at least four crawler tracks comprehensive suspension device are provided.

Common to all embodiments of the chassis device is that the total of at least four crawler tracks are arranged on the support frame of the crushing plant, that the longitudinal axes of the crawler track parallel to the longitudinal axis of the crushing device or to the longitudinal axis of the carried by the crushing feed conveyor same. In addition, in preferred embodiments of the invention, it is common to all embodiments of the suspension device that the track widths of the at least two existing crawler track pairs are the same. Advantageously, the crawler undercarriage pairs are arranged in each embodiment such that the track axes of the crawler tracks, which are arranged one behind the other in the direction of travel, are aligned.

In a first possible embodiment of the suspension device exactly four crawler tracks are available, each individual crawler under a rigidly attached to the support frame of the crushing plant and is mounted with its longitudinal axis transverse to the longitudinal extent of the crushing pendulum axis individually pivotable in the vertical direction on the support frame.

In another embodiment of the invention, at least two crawler tracks forming a tracked pair of carriages are pivotable transversely to the longitudinal axis of the vehicle via a respective transverse link in a substantially vertical direction Crushing arranged on the support frame of the same. Advantageously, each wishbone by up to +/- 10 ° angle degree - starting from a position in which both are connected via a wishbone to the shoring caterpillar tracks in a common plane - pivotally connected to the support frame of the crushing plant. Also according to this embodiment, the pivoting mobility about a transverse to the longitudinal axis of the crushing plant arranged pendulum axis, which is located at the free end of the respective control arm, is obtained. Everybody is here

Wishbone supported with advantage over a example designed as a piston-cylinder unit support means against the support frame. The piston-cylinder unit can both a hydraulic cylinder for the transmission of train and

Compressive forces, as well as a hydraulic press that transmits only compressive forces.

Alternatively or additionally, the support of the wishbone also arranged on a between the two wishbones of a crawler undercarriage pair

Supporting done.

Also in a particularly preferred embodiment or development of

Invention, the support frame of the fully mobile crushing plant according to the invention designed such that it has a U-shaped support frame part, which in

Is arranged substantially lying and which is turned away with its free leg ends of the feed conveyor. Furthermore, the crushing device is advantageously arranged on the upper free leg of the U-shaped support frame part, while the ejection conveyor advantageously with between the two free leg ends U1 and U2 both in the horizontal and in the

Vertical pivotally mounted and arranged in particular at the lower leg end. With regard to the configuration of the partially U-shaped carrying framework is at this point on the above-mentioned EP 1 615

723 B1 and whose content is expressly included in the

Disclosure of the present application included.

Further advantageous embodiments of the invention are contained in the dependent claims and in the following description of the preferred embodiments. Show it:

1 is a fully mobile crushing plant according to the invention in a schematic representation in a side view,

2 is a detailed view of FIG. 1, in which the chassis device of the fully mobile crushing plant is shown in a plan view,

3 is a sectional view of the suspension device shown in Fig. 2 along the section line K-K,

4 is a sectional view of the suspension device shown in FIG. 2 along the section line K-K, wherein the crawler undercarriage shown is on an inclined plane, FIG.

Fig. 5 is a detail view of FIG. 1, in which another

Embodiment of the chassis device of the fully mobile crushing plant according to the invention is shown in a plan view ,,

6 is a sectional view of the crawler undercarriage along the

Section line L-L of FIG. 5,

7 the crawler undercarriage shown in FIG. 6 on a plane inclined plane,

Fig. 8 is a sectional view of the suspension device analogous to Fig. 6, in which the wishbones have a different geometric configuration and the support of the wishbone takes place in another way, and

Fig. 9, the suspension device shown in Fig. 8 on a leaning

Subgrade level. FIG. 1 shows a fully mobile crushing plant 2 located on a level P, which is particularly suitable for use in opencast mining for subsequent extraction

Comminution of raw materials is suitable. The crushing plant 2 comprises a support frame 4, a suspension device 6 connected to the support frame 4, a crushing device 8 connected to the support frame 4, a

Feeding conveyor 10 for supplying feed G, as well as a

Abwurffördereinrichtung 12 for the removal of the crushed feed G '.

In this case, the feed conveyor 10 is arranged in the form of a belt conveyor fixed to the support frame 4 of the crushing plant 2, so that they are with their

Longitudinal axis parallel to the longitudinal extent of the support frame 4 of the crushing plant 2 as well as parallel to the respective longitudinal axes of the four crawler tracks 7 of

Chassis device 6 extends. In this case, the feed conveyor 10 is arranged on the support frame 4 so that they at their free in the direction Planum P lowered end of a feed container 10a for receiving the feedstock

G carries, from which via a belt conveyor to be crushed

Feedstock G is transported in the direction of crushing device 8. The support frame 4 of the crushing plant 2 advantageously comprises a support frame part of the substantially

Has a shape of a horizontal U, wherein at the upper free leg of the U-shaped support frame part, the crushing device 8 is arranged, while at the lower free

Leg part of the U-shaped support frame, the discharge conveyor 12 is mounted both vertically and horizontally pivotable. According to the invention, the chassis device 6 comprises at least four tethered to the support frame 4

Crawler tracks 7, each with 2 transverse to the direction directly opposite crawler tracks 7 form a crawler undercarriage pair. Advantageously, the transverse to the longitudinal axis LA of the crushing plant 2 are arranged opposite caterpillars 7 at least one crawler undercarriage each connected via a chassis attachment means 14 to the support frame 4. In this case, the chassis attachment means 14 are formed such that each crawler tracks 7 pivotally about a transverse to the longitudinal axis LA of

Crushing plant 2 extending pendulum axis PA, PA 'is mounted. In this case, the pendulum axis PA extending transversely to the longitudinal axis LA is formed in a first embodiment of the invention by means of an axle extension 141 rigidly formed on the support frame 4. In this first embodiment, not shown, all four crawler tracks 7 of the chassis device 6 are connected via such, rigidly connected to the support frame 4 axle extension 141 to the same with advantage.

FIG. 2 shows a second possible embodiment of the fully mobile crushing plant 2 according to the invention. The two crawler undercarriages of the chassis device 6 are in different ways to the support frame 4 of

Crushing plant 2 connected. The crawler tracks 7 one of the two

Crawler chassis pairs (with advantage that the pivot bearing SL turned away

Crawler undercarriage pair) are, as already described above in the first embodiment, connected to the supporting structure of the crushing plant 2 by the crawler tracks 7 of this crawler undercarriage via a rigid to the

Support frame 4 tailed axle extension 141 are connected. The second

Crawler undercarriage (with advantage that the swivel bearing SL facing

Crawler undercarriage pair) is connected to the support frame 4 of the crushing plant 2 by each of its crawlers 7 is connected via a single control arm 142 to the support frame 4. In this case, the or each transverse link 142 is mounted at one end about a substantially parallel to the longitudinal axis LA of the support frame 4 extending pivot axis SA pivotally mounted on the support frame 4. Further, each wishbone 142 at its other end facing away from the support frame 4 a transverse to the longitudinal axis LA extending axle portion 141 ', via which the crawler track 7 to be connected pivotally about by the

Axle section 141 'formed pendulum axis PA' is mounted. Both the axle extension

141 of the rigidly executed bearing device as well as the axle portion 141 'of the pivotable wishbone design are via first bearing means W1 in

Support frame 4 or rotatably mounted in the control arm 142. The pivotally mounted on the support frame 4 wishbone 142 are on second

Bearing means W2 mounted on the support frame 4. The wishbone 142 are in one

Embodiment of FIG. 2 mounted on two support bearings on the support frame 4, while the wishbone 142 shown in accordance with one embodiment in Fig. 5-7 is mounted on a support frame 4 via a single more stable bearing W2 '. In this case, the storage means W1; W2, W2 'be designed in particular as sliding or roller bearings. In a particularly preferred embodiment, the bearing means are designed as plain bearings.

In FIGS. 3 and 4, the mobile crushing plant 2 is shown in different operating conditions. According to Fig. 3, the crushing plant 2 moves with both pairs of wheels on a flat Planum P. This is good to see that the two pivotally mounted on the support frame 4 wishbone 142 are in a non-deflected rest state in which the legs of the two control arm 142th Seen in cross-section in the horizontal and perpendicular to a perpendicular to the chassis plane of the support frame 4 extending vertical axis V are positioned. According to FIG. 4, it is readily apparent that, as soon as the crushing plant 2 moves with a crawler chassis 7 mounted pivotably on the support frame 4 to an inclined plane P ', the crawler undercarriage 7 aligns with the inclined plane P' via its pivotable transverse link 142. In the illustrated embodiment - in which each wishbone 142 is connected via a separate support means 16 to the support frame 4, - the orientation of the inclined plane P 'according to - one support means 16 lengthen accordingly, while the other support means 16 is shortened accordingly. The support means 16 are advantageously designed in the form of so-called cylinders or presses. For the purposes of the invention, a cylinder is understood to mean a hydraulic piston-cylinder arrangement which can exert both tensile and compressive forces, while a press is understood as a piston-cylinder arrangement which can exert only compressive forces. A press thus has at least one free end only a contact surface, whereas a cylinder - in order to transmit both compressive and tensile forces - at both ends thereof correspondingly form-locking versions such as eyes or eyes or the like. Advantageously, the hydraulic support means 16 are connected to each other via hydraulic compensating lines 18 in a closed hydraulic circuit, such that the liquid displaced from the front of the one cylinder independently flows to the front of the other cylinder (and only this) and / or flows out of the The back of the one cylinder displaced liquid flows independently to the back of the other cylinder. Furthermore, the lines can also be connected to pumps and / or pressure accumulator.

Analogous to the embodiment according to FIGS. 2-4 is in Figs. 5-7 a

Embodiment of a crushing plant 2 shown, the suspension device 6 also includes a total of four connected to the support frame 4 crawler tracks 7, wherein the two crawlers 7 a first crawler undercarriage also connected via each one rigidly connected to the support frame 4 and transverse to its longitudinal axis LA extending axle extension 141 at the support frame 4 are connected, while the crawler tracks 7 of the second

Crawler undercarriage also mounted on the support frame 4 via pivoting

Wishbone 142 are connected to the support frame 4. Unlike the

Embodiment according to FIGS. 2-4, the crawler tracks 7 of the second crawler undercarriage are connected via transverse links 142 to the support frame 4, which are mounted on the support frame 4 only via a single bearing means W2. The in Fig.

3 illustrated compensation lines 18 are not shown in Fig. 6 and 7 but also in such an embodiment analogous to that in Figs. 2-4 conceivable. To stabilize the chassis, the wishbone 142 of the pivotally mounted second crawler undercarriage pair are on both sides of the longitudinal axis LA

Crushing system 2 in each case via a coupling rod K provided on both sides with articulated bearings (hinge eyes), each with a rigid portion of the support frame 4, which may be located in the region of the first, rigidly connected to the support frame 4 Fahrwerkanbindungsmittel 14. Here, the coupling rod K with its one end in the direction of the rigidly executed chassis bearing point (the

Bearing point of the pivot bearing SL for receiving the

Abwurffördereinrichtung 12 is positioned further away) pivotally connected to a parallel to the pendulum axis PA pivot axis to the support frame 4, and pivotable with its other end to a parallel to

Swing axle PA 'arranged pivot axis to the control arm 142 of the

Caterpillar track 7 of the pivotable second crawler undercarriage pair be connected. This stabilization is advantageous when the wishbone 142nd are each articulated only by means of a single bearing as a bearing means W2 'on the support frame 4.

In another embodiment of the fully mobile crushing plant 2, the chassis device 6 is designed such that at least two crawler tracks 7 a crawler undercarriage are in turn connected via a pivotally mounted on the support frame 4 wishbone to the support frame 4, wherein after the illustration in Figure 8 and 9, the wishbone illustrated embodiment supported by a single common support means 20 against each other. In addition, additional support means 22 may be provided, via which the wishbones are supported against the support frame 4. In the illustrated embodiment, each transverse link 142 has a first and a second (in particular via the support means 20 interconnected) Querachsschenkel 142a, 142b, which are rigidly interconnected. In the illustrated embodiment, the transverse link 142 is in

Longitudinal section seen running essentially L-shaped, where he is in

Connecting portion of its two Querachsschenkel 142 a and 142 b is pivotally supported on the support frame 4 of the crushing plant 2, while at its one free leg end to a pendulum axis PA 'pivotally mounted crawler 7 carries and at its other free leg end on the support means 20 with the other analog free Leg end of the other arm 142 of the other crawler chassis 7 of the

Crawler undercarriage pair is connected. Alternatively, the wishbone 142 in

Seen longitudinal section also any other profile such as a T-shaped profile o.d. have (Fig. 8, Fig. 9). Analogous to FIGS. 3 and 4 is the

Chassis device 6 shown on different planum conditions (P, P ').

Preferably, all embodiments of the chassis device 6 in common that the bearing pins of the load (ground pressure) transmitted by the chain links on the track frame support wheels or support rollers SR of the individual crawler tracks 7 rigid (or unsprung) and, rotatably mounted on the respective track frame are connected , Due to the inventive design of a chassis device 6 for a fully mobile crushing plant 2, the load distribution on the Planum P can be done via a 4-point support. Due to the fact that the individual crawler tracks 7 are mounted on pendulum axles PA, PA ¹ on the substructure or support frame 4 of the crushing plant 2, a better load distribution within the individual crawler tracks 7 and a more uniform introduction of force into the supporting frame 4 can be ensured. Furthermore, can be realized by the inventive design, a reduction of the horizontal distance between the arranged at one end of the crushing plant 2 hopper 10a and the local track pair without the total length of the supporting crawler tracks 7 need to increase. Furthermore, chain tension forces and drive torques can be distributed in optimized coordination with the four crawler tracks 7.

LIST OF REFERENCE NUMBERS

fully mobile crushing plant 2 shoring 4

Chassis mechanism 6

Crawler Track (s) 7

Crusher 8

Feeding conveyor 10 Feeding tank 10a

Dump conveyor 12

Chassis connection means 14

Axle extension 141

(rigid - on the supporting frame)

Wishbone 142

Axle section 141 '

(at vertically pivoting

Wishbone)

Querachsschenkel 142a, 142b

Supporting means 16

(Shoring)

Compensation line 18

Supporting means 20

(Wishbone)

Additional support means 22

(Shoring) Feedstock G

Crushed feedstock G '

Planum P

Oblique plane plane P ¹

Track width B

Track axis A

(Crawler chassis)

Longitudinal axis LA

(Shoring / crushing plant)

Vertical axis V

(Dumping conveyor / shoring)

Swivel axis SA

(Wishbone / shoring)

Swing axle PA ₁ PA '

(Crawler undercarriage / transverse link; I

First storage medium W1

Second bearing means W2, W2 '

Support roller SR

(Crawler chassis)

Swing bearing SL

(Discharge conveyor)

Claims

claims:

1. Mobile Crushing Plant (2), especially for use in opencast mining to the

Extraction subsequent comminution of raw materials, comprising - a support framework (4),

a chassis device (6) connected to the support frame (4) with a plurality of driven crawler tracks (7),

a breaking device (8) connected to the support frame (4),

- A feed conveyor (10) for supplying feed material (G) to the crushing device (8), wherein the feed conveyor

(10) on the one hand on the support frame (4) is arranged and on its the crushing device (8) facing away, free end carries a feed container (10 a) for receiving the feedstock (G),

- An ejection conveyor (12) for the removal of the crushed Aufgabeguts (G '), said Abwurffördereinrichtung (12) with one end on the support frame (4) is mounted pivotably in the horizontal and vertical directions, characterized in that

- Which comprises the chassis device (6) a total of four [on the support frame (4) tailed crawler tracks (7).

2. Mobile crushing plant (2) according to claim 1, characterized in that

- The transversely to the longitudinal axis (LA) of the crushing plant (2) arranged opposite caterpillars (7) at least one crawler under each suspension linkage means (14) to the support frame (4) are connected such that each of the at least two crawler tracks (7) pivotally a transverse to the longitudinal axis (LA) extending pendulum axis (PA, PA ') is mounted.

3. Mobile crushing plant (2) according to claim 2, characterized in that

- The chassis attachment means (14) for each of the four crawler tracks (7) by one rigidly attached to the support frame (4) and transverse to the longitudinal axis (LA) extending axle extension (141) formed are.

4. Mobile crushing plant (2) according to claim 2, characterized in that

- The chassis attachment means (14) for each crawler chassis (7) at least one crawler undercarriage pair by a respective control arm

(142) are formed,

- Wherein the transverse link (142) at one end about a substantially parallel to the longitudinal axis (LA) of the support frame (4) extending pivot axis (SA) is pivotally mounted on the support frame (4),

- And wherein the wishbone (142) at its other, the support frame (4) end facing a transversely to the longitudinal axis (LA) extending axle portion (141 '), via which the tracked crawler (7) pivotally about the by the axle section (141 ') formed pendulum axis (PA') is mounted.

5. Mobile crushing plant (2) according to claim 4, characterized in that

- The or each control arm (142) via a support means (16) against the support frame (4) is supported.

6. Mobile crushing plant (2) according to claim 5, characterized in that

- The or each support means (16) is designed as a hydraulic piston-cylinder unit.

7. Mobile crushing plant (2) according to claim 6, characterized in that

- The two support means (16) of a crawler undercarriage via hydraulic compensation lines (18) are coupled together.

8. Mobile crushing plant (2) according to claim 7, characterized in that - the hydraulic coupling of the support means (16) by hydraulic

Connection of the two piston head side cylinder chambers and / or the two piston bottom side cylinder chambers takes place, such that the displaced from the front of a first cylinder liquid of the front a second cylinder is supplied and / or that the displaced from the back of the second cylinder liquid is fed to the back of the first cylinder.

9. Mobile crushing plant (2) according to any one of the preceding claims 4-8, characterized in that

- The two wishbones (142) of a crawler undercarriage via a support means (20) are supported against each other.

Mobile crushing plant (2) according to claim 9, characterized in that each wishbone (142) of at least one crawler track pair has first and second transverse axle legs (142a, 142b),

- Wherein on the first Querachsschenkel (142 a) the associated crawler chassis (7) is pivotally connected to a substantially parallel to the longitudinal axis (LA) of the support frame (4) extending pivot axis (SA) to the support frame (4),

- And wherein over the second Querachsschenkel (142b), the two wishbones (142) of the crawler undercarriage pair over the common support means (20) are supported against each other.

11. Mobile crushing plant (2) according to claim 10, characterized in that

each wishbone (142) of at least one pair of crawler tracks is supported against the support frame (4) via an additional support means (22).

12. Mobile crushing plant (2) according to one of the preceding claims, characterized in that

- The two track pairs have the same track width (B).

13. Mobile crushing plant (2) according to claim 12, characterized in that - the two crawler undercarriage pairs are arranged such that the

Spur axles (A) of in the direction of travel (F) successively arranged crawler tracks (7) are aligned.