WO2000004240A1 - Chain and bucket excavator - Google Patents

Chain and bucket excavator Download PDF

Info

Publication number
WO2000004240A1
WO2000004240A1 PCT/DE1999/002068 DE9902068W WO0004240A1 WO 2000004240 A1 WO2000004240 A1 WO 2000004240A1 DE 9902068 W DE9902068 W DE 9902068W WO 0004240 A1 WO0004240 A1 WO 0004240A1
Authority
WO
WIPO (PCT)
Prior art keywords
chain
ƒ
da
speed
characterized
Prior art date
Application number
PCT/DE1999/002068
Other languages
German (de)
French (fr)
Inventor
Karl Hartmann
Werner Daus
Helmut Newi
Peter Scholze
Original Assignee
Siemens Aktiengesellschaft
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 to DE19831913.4 priority Critical
Priority to DE1998131913 priority patent/DE19831913C1/en
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2000004240A1 publication Critical patent/WO2000004240A1/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/08Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain
    • E02F3/12Component parts, e.g. bucket troughs
    • E02F3/14Buckets; Chains; Guides for buckets or chains; Drives for chains
    • E02F3/141Buckets; Chains; Guides for buckets or chains; Drives for chains buckets
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/08Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain
    • E02F3/12Component parts, e.g. bucket troughs
    • E02F3/16Safety or control devices

Abstract

A chain and bucket excavator (1) with buckets (2) that are guided on a chain (3) for use in surface installations, whereby the chain (3) is driven by means of a drive mechanism (5) associated with the chain and bucket excavator (1). The chain and bucket excavator (1) has a speed measurement device (4) that operates in a contactless manner and is used to measure the speed of the chain (3). The drive mechanism (5) is regulated according to the output from the speed measurement device that operates in a contactless manner.

Description

description

Eimerkettenbagger

The invention relates to a bucket dredger with guided on a chain buckets for use in open cast mining equipment, wherein the chain is driven by means of an associated drive the bucket dredger, as well as a method for controlling the driving of the bucket excavator.

Due to extremely high investment costs for Eimerkettenbagger their downtime is a particularly critical size. The aim of the invention is therefore to provide a bucket dredger with less wear and less downtime than would be the case of known bucket excavators. Further, it is' goal to provide a method of operating a bucket ladder dredger, which reduces wear.

The object is inventively achieved by a Eimerkettenbag- ger for use in open cast mining equipment according to claim 1 and a method according to claim. 5 Here, the bucket dredger on a chain in a guided bucket, the chain is driven by means of an associated the Eimerkettenbagger drive or be driven. The speed of the chain is measured without contact. Further, it is particularly intended to regulate this drive as a function of measured values ​​obtained by the contactless speed measurement. In this way it is possible that acceleration forces that arise during and even con- stant operation of the bucket, regulate largely ruled out. This reduces wear on the chain significantly and leads to a significant reduction in the downtime of the bucket excavator.

In an advantageous embodiment of the invention, the derivative of the speed of the chain, in particular by means of a differentiator is determined. It is particularly advantageous to regulate the derivative of the speed of the chain to a predetermined target value. In this way, the wear on the chain over a pure speed control can continue to decrease significantly.

Further advantages and details will emerge from the following description of an embodiment. In this embodiment shown in Figure, reference numeral 1 denotes a bucket dredger which has a run on cables 10, 11, 12, 13 grave organ. 9 For balancing a boom 7 is provided with a balance weight. 8 By means of the grave member 9 are led to the elimination of abzubauendem material on a chain 3 guided bucket. 2 The chain is driven by a arranged in a so-called machine room 6 drive. 5 Via the drive 5, a contactlessly operating speedometer 4 is arranged, which measures the speed of the chain 3 without contact.

Speedometer operates in an exemplary embodiment according to the microwave Doppler radar principle and provides, for example, a continuous speed proportional frequency of about 62 Hz / m / s. This speed-dependent frequency is fed to a frequency / analogue converter 10 V or 4 ... generates a speed proportional standard signal 0 ... 20 mA. As Geschwindigkeitsmeßgeräte but other non-contact Geschwindigkeitsmeßgeräte be considered, such as ultrasonic devices.

In a particularly advantageous manner, the non-contact measured speed signal is differentiated and the drive means of a regulator controlled such that the derivative of the speed of the chain corresponds to a predetermined desired value. In constant operation while a target value is predetermined for the derivation of the rate of 0th As a regulator, for example, PI or PID controller and more complex controls are suitable. The speedometer is attached to the roof of the nacelle 6 of the bucket excavator 1 to the bulk chute 15 with beam direction bucket ladder top. There, the measurement of the running chain. The required for rate-mood reflection of the radiation emitted by the radar high-frequency radiation is advantageously carried out by the respectively largest irradiated area of ​​the bucket back. To adjust the speed measuring it is attached pivots and tilts. The particularly Advantageous arrangement of Geschwindigkeitsmeßgerätes in the region of the drive is achieved that term effects of the transmission of force to the elongate element chain does not falsify the measurement result, that is, the direct connection between Turasform and chain speed is detected.

Thus above Be'schleunigungskräfte be reduced as verschleißintensivierende factors of the grave organ or no longer occur. It comes in longer periods of operation of the bucket chains and thus to a significant reduction in maintenance costs.

Claims

Patentanspr├╝che
1. bucket dredger (1) on a chain (3) geführten buckets (2) for use in open cast mining equipment, wherein the chain (3) by means of the bucket dredger associated with (1) the drive can be driven, characterized in daß the bucket dredger (1) comprises a working berührungslos Geschwindigkeitsmeßgerät (4) for measuring the speed of the chain (3).
2. bucket dredger (1) according to claim 1, characterized in he daß a differentiator for forming a derivation from Geschwindigkeitsmeßgerät determined (4) speed value comprises. '
3. Eimerkettenbager (1) according to claim 2, characterized in he daß a regulator for such a control of the drive includes, daß the derivative of the Geschwindigkeitsmeßgerät (4) measured speed value corresponds to a predetermined desired value.
4. bucket dredger (1) according to claim 1, 2 or 3, characterized in daß the drive (5) is designed as direct drive.
5. A method for controlling the drive (5) of a Eimerketten- excavator (1) according to one of the preceding Anspr├╝che, wherein the bucket dredger (1) on a chain (3) bucket gef├╝hrte
(2), characterized in daß the speed of the chain (3) is measured berührungslos.
6. The method according to claim 5 characterized in, daß the derivative of the speed of the chain (3) is determined.
7. The method according to claim 6 characterized in, daß the derivative of the speed of the chain (3) is regulated to a predetermined desired value.
PCT/DE1999/002068 1998-07-16 1999-07-05 Chain and bucket excavator WO2000004240A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19831913.4 1998-07-16
DE1998131913 DE19831913C1 (en) 1998-07-16 1998-07-16 A process for the reduction of wear in the chain of buckets bucket excavators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU0102701A HU225659B1 (en) 1998-07-16 1999-07-05 Chain and bucket excavator and method of its driving control

Publications (1)

Publication Number Publication Date
WO2000004240A1 true WO2000004240A1 (en) 2000-01-27

Family

ID=7874222

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/002068 WO2000004240A1 (en) 1998-07-16 1999-07-05 Chain and bucket excavator

Country Status (5)

Country Link
CZ (1) CZ298392B6 (en)
DE (1) DE19831913C1 (en)
HU (1) HU225659B1 (en)
RU (1) RU2217553C2 (en)
WO (1) WO2000004240A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8768579B2 (en) 2011-04-14 2014-07-01 Harnischfeger Technologies, Inc. Swing automation for rope shovel
US9206587B2 (en) 2012-03-16 2015-12-08 Harnischfeger Technologies, Inc. Automated control of dipper swing for a shovel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10157345C1 (en) * 2001-11-22 2003-02-20 Lausitzer Braunkohle Ag Conveyor chain drive for bucket chain excavator uses drive polygons provided with extended bearing surfaces on either side

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1658028A1 (en) * 1966-05-14 1971-04-08 Rationalisierung Braunkohle Ve A method for automatic power control of excavators
DE19616056C1 (en) * 1996-04-23 1997-07-03 H Aug Schmidt Transportanlagen Controller for bucket-chain excavator with inverter-fed cable drives

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE507610C (en) * 1930-09-18 Luebecker Maschb Ges Connection between the bucket and ear Eimerschake
DE4342040A1 (en) * 1993-12-09 1995-06-14 H Aug Schmidt Transportanlagen Bucket chain excavator with slack bucket chain

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1658028A1 (en) * 1966-05-14 1971-04-08 Rationalisierung Braunkohle Ve A method for automatic power control of excavators
DE19616056C1 (en) * 1996-04-23 1997-07-03 H Aug Schmidt Transportanlagen Controller for bucket-chain excavator with inverter-fed cable drives

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8768579B2 (en) 2011-04-14 2014-07-01 Harnischfeger Technologies, Inc. Swing automation for rope shovel
US9315967B2 (en) 2011-04-14 2016-04-19 Harnischfeger Technologies, Inc. Swing automation for rope shovel
US9567725B2 (en) 2011-04-14 2017-02-14 Harnischfeger Technologies, Inc. Swing automation for rope shovel
US10227754B2 (en) 2011-04-14 2019-03-12 Joy Global Surface Mining Inc Swing automation for rope shovel
US9206587B2 (en) 2012-03-16 2015-12-08 Harnischfeger Technologies, Inc. Automated control of dipper swing for a shovel
US9745721B2 (en) 2012-03-16 2017-08-29 Harnischfeger Technologies, Inc. Automated control of dipper swing for a shovel

Also Published As

Publication number Publication date
CZ2001127A3 (en) 2002-02-13
HU0102701A2 (en) 2001-12-28
HU0102701A3 (en) 2003-08-28
HU225659B1 (en) 2007-05-29
DE19831913C1 (en) 2000-02-24
RU2217553C2 (en) 2003-11-27
CZ298392B6 (en) 2007-09-19

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