-
公开(公告)号：US11383933B2
公开(公告)日：2022-07-12
申请号：US16973507
申请日：2019-06-12
发明人： Martin S. Lurie , R. Steven Kasper
摘要： A trough conveyor that transports fine bulk material and is exposed to windy conditions may include a belt for transporting bulk material, a center roll for supporting the belt, first and second wing rolls that support angled segments of the belt, a frame that supports the center roll and the first and second wing rolls, and a hood cover disposed above the belt. The trough conveyor may also include first and second baffles that form labyrinths that help attenuate wind velocity over the fine bulk material. The baffles may also help contain fine bulk material that is stirred up within a stilling space formed between the hood cover, the belt, and the baffles. In addition or in the alternative, the trough conveyor may include fairings that deflect crosswind beneath the belt.
-
公开(公告)号：US20210245957A1
公开(公告)日：2021-08-12
申请号：US16973507
申请日：2019-06-12
发明人： Martin S. LURIE , R. Steven KASPER
摘要： A trough conveyor that transports fine bulk material and is exposed to windy conditions may include a belt for transporting bulk material, a center roll for supporting the belt, first and second wing rolls that support angled segments of the belt, a frame that supports the center roll and the first and second wing rolls, and a hood cover disposed above the belt. The trough conveyor may also include first and second baffles that form labyrinths that help attenuate wind velocity over the fine bulk material. The baffles may also help contain fine bulk material that is stirred up within a stilling space formed between the hood cover, the belt, and the baffles. In addition or in the alternative, the trough conveyor may include fairings that deflect crosswind beneath the belt.
-
公开(公告)号：US20190322459A1
公开(公告)日：2019-10-24
申请号：US16472595
申请日：2018-01-16
发明人： Martin S. LURIE , Mark ALSPAUGH , Ruben E. LEZIUS , Kalin TONCHEV , R. Steven KASPER , Vladimir SVIRSKY
摘要： A tensioning system maintains tension within a target range for an endless belt of a conveyor. The tensioning system may include a movable carriage that supports a take-up pulley that provides tension to the conveyor belt. The tensioning system may also include various hydraulic components supported on a repositionable cart. One example hydraulic component is a hydraulic cylinder that is in tension between the movable carriage and the repositionable cart. An accumulator initially pressurized to a predetermined pressure may be connected so as to supply pressure to the hydraulic cylinder. One or more flow-restriction valves between the hydraulic cylinder and the accumulator may substantially increase a pressure in the hydraulic cylinder during phases when a piston rod is rapidly drawn out of the hydraulic cylinder by tension waves in the endless belt. Further, a check valve may permit substantially unimpeded fluid flow from the accumulator to the hydraulic tensioning cylinder.
-
公开(公告)号：US20180222689A1
公开(公告)日：2018-08-09
申请号：US15912122
申请日：2018-03-05
发明人： Martin S. LURIE
摘要： A material handling machine for transferring discrete loads of excavated, uncrushed waste from an excavator or other excavation equipment to a dumping location beyond the reach of the excavator. The material handling machine may include a mobile bridge supported by two or more crawlers. The material handling machine may further include at least one skip that is selectively moved between a first end and a second end of the mobile bridge. The at least one skip may receive material from excavation equipment at the first end and deposit the received material proximate the second end. When the material handling machine includes two skips, one skip may be positioned above the other skip, or the skips may be positioned to be side-by-side.
-
公开(公告)号：US10011431B2
公开(公告)日：2018-07-03
申请号：US15111771
申请日：2015-01-14
摘要： A long run conveyor system is disclosed in which at least a portion thereof traverses a slope sufficiently steep so that tensile force associated with overcoming the effects of the slope is greater per unit length than tensile force per unit length of run due to main frictional resistance of the conveyor system. The long run conveyor system includes an external belt defining a continuous loop traversing an entire route of the conveyor system and is configured to transport material load across the entire route. The conveyor system also includes an internal belt positioned inside the continuous loop of the external belt, which also traverses substantially the entire route. An upper side of the internal belt operably engages an underside of the external belt. The internal and external belts are configured such that each respectively carries an approximately equal amount of belt tension.
-
公开(公告)号：US10647521B2
公开(公告)日：2020-05-12
申请号：US16427544
申请日：2019-05-31
发明人： Martin S. Lurie
摘要： A material handling apparatus may be employed to transfer discrete loads of excavated waste from an excavator or other excavation equipment to a dumping location beyond the reach of the excavator. The material handling apparatus may include a mobile bridge supported by two or more crawlers that enable movement of the mobile bridge. The material handling apparatus may further include a conveyance mechanism that transfers material between first and second ends of the mobile bridge. The conveyance mechanism may transfer material to haul trucks at the second end of the mobile bridge, which may be disposed above the first end of the mobile bridge. The conveyance mechanism may receive material from an intermediate transfer mechanism at the first end of the mobile bridge.
-
公开(公告)号：US10189647B2
公开(公告)日：2019-01-29
申请号：US15677686
申请日：2017-08-15
发明人： Martin S. Lurie , R. Steven Kasper
摘要： A conveyor system, at least a portion of which may traverse a continuous slope sufficiently steep such that tensile forces associated with overcoming the effects of the slope are several times larger per unit length of run than tensile forces per unit length of run due to main frictional resistance of the conveyor system, may include a belt-on-belt drive. The belt-on-belt drive may include at least one internal belt configured to operably engage the carry belt of the conveyor system so as to frictionally drive the carry belt over at least a one-third length of the sloped run. At the portion of the external belt driven by the at least one internal belt, the rate of tension change in the external belt may be configured to be approximately zero or a modest rise. In some embodiments, the longitudinal stiffness of the at least one internal belt may be substantially greater than the external belt's longitudinal stiffness.
-
公开(公告)号：US20190283976A1
公开(公告)日：2019-09-19
申请号：US16427544
申请日：2019-05-31
发明人： Martin S. LURIE
摘要： A material handling apparatus may be employed to transfer discrete loads of excavated waste from an excavator or other excavation equipment to a dumping location beyond the reach of the excavator. The material handling apparatus may include a mobile bridge supported by two or more crawlers that enable movement of the mobile bridge. The material handling apparatus may further include a conveyance mechanism that transfers material between first and second ends of the mobile bridge. The conveyance mechanism may transfer material to haul trucks at the second end of the mobile bridge, which may be disposed above the first end of the mobile bridge. The conveyance mechanism may receive material from an intermediate transfer mechanism at the first end of the mobile bridge.
-
公开(公告)号：US20170341870A1
公开(公告)日：2017-11-30
申请号：US15677686
申请日：2017-08-15
发明人： Martin S. LURIE , R. Steven Kasper
摘要： A conveyor system, at least a portion of which may traverse a continuous slope sufficiently steep such that tensile forces associated with overcoming the effects of the slope are several times larger per unit length of run than tensile forces per unit length of run due to main frictional resistance of the conveyor system, may include a belt-on-belt drive. The belt-on-belt drive may include at least one internal belt configured to operably engage the carry belt of the conveyor system so as to frictionally drive the carry belt over at least a one-third length of the sloped run. At the portion of the external belt driven by the at least one internal belt, the rate of tension change in the external belt may be configured to be approximately zero or a modest rise. In some embodiments, the longitudinal stiffness of the at least one internal belt may be substantially greater than the external belt's longitudinal stiffness.
-
公开(公告)号：US09731901B2
公开(公告)日：2017-08-15
申请号：US14765126
申请日：2014-02-03
发明人： Martin S. Lurie , R. Steven Kasper
摘要： A conveyor system, at least a portion of which may traverse a continuous slope sufficiently steep such that tensile forces associated with overcoming the effects of the slope are several times larger per unit length of run than tensile forces per unit length of run due to main frictional resistance of the conveyor system, may include a belt-on-belt drive. The belt-on-belt drive may include at least one internal belt configured to operably engage the carry belt of the conveyor system so as to frictionally drive the carry belt over the sloped run. The longitudinal stiffness of the at least one internal belt may be at least twice the external belt's longitudinal stiffness. At the portion of the external belt driven by the at least one internal belt, the rate of tension rise in the external belt may be configured to be approximately zero or a modestly higher rate.
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.015 秒)
