摘要:
A pan section for combined conveying and winning apparatuses having a bottom run and a top run for guiding driver elements of a conveyor chain, as well as a welded frame structure which has two side cheeks which consist of one-piece rolled profiles. The rolled profiles have a constant profile shape with a bottom leg and a top leg, which are angled outwards in the assembled state, and an intermediate leg being provided with an offset for supporting and welding at least one intermediate plate. The pan section further includes a substructure connected to the bottom leg of the rolled profiles to connect both bottom legs to one another at a distance from the intermediate bottom. The substructure also has mounting pieces positioned at the ends below the bottom legs for transverse-force transmission means.
摘要:
The invention relates to a multipart chain fixing device for securing at least one conveyor chain on a trough element of especially an underground scraper chain conveyor. The fixing device comprises a bridge part (60), which has a bridge bar (62) that at least partially overlaps the conveyor chain in a positive-locking manner and ends in two lateral side end portions (61). It also comprises two side parts (70), which are fastenable to the trough element pan and to which the side end portions 61 are releasably securable by positive-locking means. For providing a chain fixing device, inclusive of the associated trough element and the individual components, which offer increased safety in underground usage, combined with simple assembly, the side parts (70) are releasably fastenable in a positive-locking manner in cavities in the conveyor floor of the trough element.
摘要:
A pan section for combined conveying and winning apparatuses having a bottom run and a top run for guiding driver elements of a conveyor chain, as well as a welded frame structure which has two side cheeks which consist of one-piece rolled profiles. The rolled profiles have a constant profile shape with a bottom leg and a top leg, which are angled outwards in the assembled state, and an intermediate leg being provided with an offset for supporting and welding at least one intermediate plate. The pan section further includes a substructure connected to the bottom leg of the rolled profiles to connect both bottom legs to one another at a distance from the intermediate bottom. The substructure also has mounting pieces positioned at the ends below the bottom legs for transverse-force transmission means.
摘要:
The invention relates to a multipart chain fixing device for securing at least one conveyor chain on a trough element of especially an underground scraper chain conveyor. The fixing device comprises a bridge part (60), which has a bridge bar (62) that at least partially overlaps the conveyor chain in a positive-locking manner and ends in two lateral side end portions (61). It also comprises two side parts (70), which are fastenable to the trough element pan and to which the side end portions 61 are releasably securable by positive-locking means. For providing a chain fixing device, inclusive of the associated trough element and the individual components, which offer increased safety in underground usage, combined with simple assembly, the side parts (70) are releasably fastenable in a positive-locking manner in cavities in the conveyor floor of the trough element.
摘要:
A scraper for a scraper chain conveyor, having a top web, on which a chain attachment region for connecting the scraper to a scraper chain is configured, and having scraper wings for guiding the scraper on side profiles and bottom of a scraper chain conveyor. In order to provide scrapers with which a higher conveying output or a reduction of the drive output to be installed can be achieved, and which also enable a worn or defective scraper to be changed below ground, it is provided according to the invention that the scraper wings consist of a holding portion anchored to the metallic top web and a plastics sliding insert which can be releasably fastened to the holding portion. For the sliding inserts and their retention, various embodiments are proposed.
摘要:
A scraper for a scraper chain conveyor, having a top web, on which a chain attachment region for connecting the scraper to a scraper chain is configured, and having scraper wings for guiding the scraper on side profiles and bottom of a scraper chain conveyor. In order to provide scrapers with which a higher conveying output or a reduction of the drive output to be installed can be achieved, and which also enable a worn or defective scraper to be changed below ground, it is provided according to the invention that the scraper wings consist of a holding portion anchored to the metallic top web and a plastics sliding insert which can be releasably fastened to the holding portion. For the sliding inserts and their retention, various embodiments are proposed.
摘要:
A connecting device for connecting an attachment to a side member of a trough pan of an extracting device is provided. The connecting device includes first fittings on a side member and counter fittings on the attachment, which are detachably connectable to the first fittings. At least one retaining piece prevents detachment of fitting and counter fitting. The first fitting tapers upward in a trapeze-shaped manner and the counter fitting tapers upward in a trapeze-shaped manner, so that by a vertical movement, the first fitting and the counter fitting are able to be fitted into each other or to be detached from each other, and the first fitting and counter fitting are provided with locking strips and/or grooves which interlock in a locking state.
摘要:
A pick locking device for a plow pick that includes a pick shank inserted into a receptor box of a pick holder. The locking device may include a retaining pin and a deformable clamp element. The retaining pin may be forced through an opening on the pick holder into a locking groove extending in a shank insert direction along one side face of the shank. The clamp element may secure the retaining pin in a locked position, and may include a first leg and a second leg positioned at an angle to each other. The first leg may be inserted into a retainer in the pick shank and the second leg may be inserted into a locking recess on the retaining pin. The second leg may include a trunnion protruding from the first leg and an annular enclosed opening that extends to a rear of the first leg.
摘要:
A mining machine for underground mining is disclosed, particularly an extraction or coal plough. When in use, the mining machine is guided along a machine guide, said machine guide including a guide rail and a guide pawl. The guide pawl engaging around said guide rail from above wherein a guide piece is disposed between said guide pawl and said guide rail. The guide piece is releasably attached or attachable to said guide pawl and is sliding along said guide rail. According to the invention, said guide pawl has at least one support means whereassaid guide piece in its installation position is supported on said support means. Further, the guide piece with said guide pawl is fixed by means of a locking mechanism in the longitudinal direction of said guide rail.
摘要:
A bit holder for a ploughing bit, particularly a bottom bit of a coal plough, includes an insert pocket 12 which is open at the top side 11 for receiving and supporting a bit stem of the ploughing bit and which pocket 12 is bounded on its edges by two lateral supporting walls 20, 30, a front supporting wall 13 and a rear supporting wall 14 with the rear supporting wall 14 projecting above the front supporting wall 13. In order to minimise the wear effect on the contact surfaces between bit stem and bit holder, the lateral supporting wall 20 facing away from the working face when the plough is in use projects above the front supporting wall 13 and the other lateral supporting wall 30 and forms an extended lateral support for the bit stem with respect to the other supporting wall 30.