GB2125851A - Mining machine for extraction of minerals - Google Patents

Mining machine for extraction of minerals Download PDF

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Publication number
GB2125851A
GB2125851A GB08223197A GB8223197A GB2125851A GB 2125851 A GB2125851 A GB 2125851A GB 08223197 A GB08223197 A GB 08223197A GB 8223197 A GB8223197 A GB 8223197A GB 2125851 A GB2125851 A GB 2125851A
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GB
United Kingdom
Prior art keywords
mining machine
conveyor
minerals
parallel
machine
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.)
Granted
Application number
GB08223197A
Other versions
GB2125851B (en
Inventor
Jury Niselievich Spektor
Valery Mikhailovich Gaponov
Felix Zinovievich Masovich
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.)
G PK EXI UGOLNOGO MASH
Original Assignee
G PK EXI UGOLNOGO MASH
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
Application filed by G PK EXI UGOLNOGO MASH filed Critical G PK EXI UGOLNOGO MASH
Priority to GB08223197A priority Critical patent/GB2125851B/en
Publication of GB2125851A publication Critical patent/GB2125851A/en
Application granted granted Critical
Publication of GB2125851B publication Critical patent/GB2125851B/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/02—Machines which completely free the mineral from the seam solely by slitting
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
    • E21C29/22—Propulsion of machines for slitting or completely freeing the mineral from the seam by wheels, endless tracks or the like
    • E21C29/24—Trucks carrying the machine while working
    • E21C29/26—Trucks carrying the machine while working with means for adjustably positioning the machine on the truck
    • E21C29/28—Trucks carrying the machine while working with means for adjustably positioning the machine on the truck adjusting the height of the whole machine
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/06—Equipment for positioning the whole machine in relation to its sub-structure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/08—Guiding the machine
    • E21C35/12—Guiding the machine along a conveyor for the cut material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

A mining machine comprises a body (1), drum-type cutting heads, a gantry coupled with the body (1), adjustable hydraulic supports (5) arranged inside the body (1), grippers (7) hinge-connected to the body (1) by means of levers (8) and (9) arranged in parallel to one another and providing for vertical movement of the mining machine, and links (14), each being coupled with the respective top lever (9) and with the respective hydraulic support (5). <IMAGE>

Description

SPECIFICATION Mining machine for extraction of minerals The present invention relates to mineral mining equipment, and more particularly, to mining machines for extraction of minerals.
The invention can most advantageously be used for extraction of minerals, and, primarily, thin-bedded minerals, preferably coal and salt.
It is known to those skilled in the art that mining machines serving for exploitation of thinbed seams may not come out of certain size limits, that is, must be relatively small in height and length because of confined operating space.
There is known a mining machine for extraction of minerals deposited in thin seams. Said machine comprises two drum-type cutting heads arranged on opposite ends of a body coupled with a gantry disposed above a conveyor. The body accommodates adjustable hydraulic supports and two grippers installed on conveyor guides and serving to hold the mining machine in position above the conveyor. Each gripper is hingeconnected to the body by means of levers positioned in parallel to one another and designed to permit vertical movement of the mining machine (cf. British Patent Specification No. 1 ,52 1 ,006, Class E IF, 1978, and FRG laidopen Application No. 2649599.8, 1977).
In the mining machine of the foregoing design, the body is hinge-connected to the grippers thorugh two parallel levers, and the mining machine body position in the horizontal plane depends on location of the common axis of the hinge joints disposed beside the grippers.
The mining machine body and the gripper in set with the parallel levers form a parallel-crank mechanism serving to permit the movement of the body in parallel thereof in the vertical direction when the hydraulic supports are extended or retracted.
However, gaps in the parallel-crank mechanism hinge joints may cause displacement of the body from the position parallel to the seam floor, with the result that the mining machine cutting head winning the mineral may leave wedge-shaped seam remains near the seam roof and floor.
According to the present invention there is provided a mining machine for extraction of minerals, comprising a body carrying cutting heads, a gantry coupled with the body for installation above a conveyor, hydraulic support members supporting the body at an adjustable height relative to the conveyor, two mounting devices for locating the machine above the conveyor and each coupled with the body by an arrangement of parallel arms pivoted to the body and to the mounting devices for guiding the body for vertical movement, and a respective link connected between and pivoted to the uppermost arm of each coupling arrangement a stationary part of one of the hydraulic support members.
In a machine according to the invention the links may ensure that the body of the machine remains in a horizontal position relative to the conveyor.
A full understanding of the invention will be had from the following detailed description of a preferred embodiment thereof given with reference to the accompanying drawings, wherein: Fig. 1 is a plan view of a mining machine for extraction of minerals, according to the invention; Fig. 2 is an enlarged scale sectional view of the mining machine taken along line Il-Il in Fig. 1, the machine being shown set to a full bottom position; Fig. 3 is a similar view to Fig. 2 with the machine set to a full top position.
Referring to Fig. 1 ,the mining machine for extraction of minerals comprises a body 1, drumtype cutting heads 2 arranged on opposite ends of the machine and serving to win the seam of minerals, and a gantry 3 whereto the body 1 is coupled. The gantry 3 is arranged above a face conveyor 4.
The body 1 accommodates hydraulic supports 5 (Figs. 2 and 3) installed on gatherer 6 located on the face side of the conveyor 4.
Besides, the mining machine is retained in place above the conveyor 4 by means of two mounting devices or grippers 7 coupled with the body 1 by two pairs of arms or levers 8 and 9. The levers 8 and 9 are linked with the body 1 by means of hinge joints 10 and 11, and are coupled with the grippers 7 by means of hinge joints 12 and 13.
The levers 8 and 9 are arranged in pairs in parallel to one another.
The top lever 9, according to the invention, is connected by a link 14 to a fixed member of the support 5, for example, in the form of a cylinder 1 5. This feature provides for locking the mining machine in place during adjustment of the height thereof above the conveyor.
The foregoing height adjustment of the mining machine above the conveyor 4 is effected by extending the hydraulic supports 5 (Fig. 3). The link 14 prevents folding of a parallel-crank mechanism formed by the levers 8 and 9, the body 1 and the gripper 7 since a rigid delta linkage is formed by hydraulic jacks 1 6 of the support 5, link 14 and the lever 9.
The link 14 is arranged in such a way that a common axis 1 7 of the hinge joints 12 and 13 is retained in a vertical position and no gaps occur in the hinge joints 10 to 13 of the parallel-crank mechanism that may cause tilting of the mining machine toward the face if no link 14 is provided.
Thus, the use of the link hinged with one lever and fixed member of the support permits locking the mining machine body in the horizontal plane and provides for parallel movement of the body during height adjustment, and prevents displacements of the mining machine in the horizontal plane.
1. A mining machine for extraction of minerals, comprising a body carrying cutting heads, a gantry coupled with the body for installation above a conveyor, hydraulic support members supporting the body at an adjustable height relative to the
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (2)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Mining machine for extraction of minerals The present invention relates to mineral mining equipment, and more particularly, to mining machines for extraction of minerals. The invention can most advantageously be used for extraction of minerals, and, primarily, thin-bedded minerals, preferably coal and salt. It is known to those skilled in the art that mining machines serving for exploitation of thinbed seams may not come out of certain size limits, that is, must be relatively small in height and length because of confined operating space. There is known a mining machine for extraction of minerals deposited in thin seams. Said machine comprises two drum-type cutting heads arranged on opposite ends of a body coupled with a gantry disposed above a conveyor. The body accommodates adjustable hydraulic supports and two grippers installed on conveyor guides and serving to hold the mining machine in position above the conveyor. Each gripper is hingeconnected to the body by means of levers positioned in parallel to one another and designed to permit vertical movement of the mining machine (cf. British Patent Specification No. 1 ,52 1 ,006, Class E IF, 1978, and FRG laidopen Application No. 2649599.8, 1977). In the mining machine of the foregoing design, the body is hinge-connected to the grippers thorugh two parallel levers, and the mining machine body position in the horizontal plane depends on location of the common axis of the hinge joints disposed beside the grippers. The mining machine body and the gripper in set with the parallel levers form a parallel-crank mechanism serving to permit the movement of the body in parallel thereof in the vertical direction when the hydraulic supports are extended or retracted. However, gaps in the parallel-crank mechanism hinge joints may cause displacement of the body from the position parallel to the seam floor, with the result that the mining machine cutting head winning the mineral may leave wedge-shaped seam remains near the seam roof and floor. According to the present invention there is provided a mining machine for extraction of minerals, comprising a body carrying cutting heads, a gantry coupled with the body for installation above a conveyor, hydraulic support members supporting the body at an adjustable height relative to the conveyor, two mounting devices for locating the machine above the conveyor and each coupled with the body by an arrangement of parallel arms pivoted to the body and to the mounting devices for guiding the body for vertical movement, and a respective link connected between and pivoted to the uppermost arm of each coupling arrangement a stationary part of one of the hydraulic support members. In a machine according to the invention the links may ensure that the body of the machine remains in a horizontal position relative to the conveyor. A full understanding of the invention will be had from the following detailed description of a preferred embodiment thereof given with reference to the accompanying drawings, wherein: Fig. 1 is a plan view of a mining machine for extraction of minerals, according to the invention; Fig. 2 is an enlarged scale sectional view of the mining machine taken along line Il-Il in Fig. 1, the machine being shown set to a full bottom position; Fig. 3 is a similar view to Fig. 2 with the machine set to a full top position. Referring to Fig. 1 ,the mining machine for extraction of minerals comprises a body 1, drumtype cutting heads 2 arranged on opposite ends of the machine and serving to win the seam of minerals, and a gantry 3 whereto the body 1 is coupled. The gantry 3 is arranged above a face conveyor 4. The body 1 accommodates hydraulic supports 5 (Figs. 2 and 3) installed on gatherer 6 located on the face side of the conveyor 4. Besides, the mining machine is retained in place above the conveyor 4 by means of two mounting devices or grippers 7 coupled with the body 1 by two pairs of arms or levers 8 and 9. The levers 8 and 9 are linked with the body 1 by means of hinge joints 10 and 11, and are coupled with the grippers 7 by means of hinge joints 12 and 13. The levers 8 and 9 are arranged in pairs in parallel to one another. The top lever 9, according to the invention, is connected by a link 14 to a fixed member of the support 5, for example, in the form of a cylinder 1 5. This feature provides for locking the mining machine in place during adjustment of the height thereof above the conveyor. The foregoing height adjustment of the mining machine above the conveyor 4 is effected by extending the hydraulic supports 5 (Fig. 3). The link 14 prevents folding of a parallel-crank mechanism formed by the levers 8 and 9, the body 1 and the gripper 7 since a rigid delta linkage is formed by hydraulic jacks 1 6 of the support 5, link 14 and the lever 9. The link 14 is arranged in such a way that a common axis 1 7 of the hinge joints 12 and 13 is retained in a vertical position and no gaps occur in the hinge joints 10 to 13 of the parallel-crank mechanism that may cause tilting of the mining machine toward the face if no link 14 is provided. Thus, the use of the link hinged with one lever and fixed member of the support permits locking the mining machine body in the horizontal plane and provides for parallel movement of the body during height adjustment, and prevents displacements of the mining machine in the horizontal plane. CLAIMS
1. A mining machine for extraction of minerals, comprising a body carrying cutting heads, a gantry coupled with the body for installation above a conveyor, hydraulic support members supporting the body at an adjustable height relative to the conveyor, two mounting devices for locating the machine above the conveyor and each coupled with the body by an arrangement of parallel arms pivoted to the body and to the mounting devices for guiding the body for vertical movement, and a respective link connected between and pivoted to the uppermost arm of each coupling arrangement and a stationary part of one of the hydraulic support members.
2. A mining machine for extraction of minerals substantially as herein described with reference to the accompanying drawings.
GB08223197A 1982-08-12 1982-08-12 Mining machine for extraction of minerals Expired GB2125851B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08223197A GB2125851B (en) 1982-08-12 1982-08-12 Mining machine for extraction of minerals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08223197A GB2125851B (en) 1982-08-12 1982-08-12 Mining machine for extraction of minerals

Publications (2)

Publication Number Publication Date
GB2125851A true GB2125851A (en) 1984-03-14
GB2125851B GB2125851B (en) 1985-08-14

Family

ID=10532259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08223197A Expired GB2125851B (en) 1982-08-12 1982-08-12 Mining machine for extraction of minerals

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212193A (en) * 1987-11-11 1989-07-19 Dowty Mining Equipment Ltd Coal excavating machinery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212193A (en) * 1987-11-11 1989-07-19 Dowty Mining Equipment Ltd Coal excavating machinery

Also Published As

Publication number Publication date
GB2125851B (en) 1985-08-14

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PCNP Patent ceased through non-payment of renewal fee