IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0993584
(2009-05-20)
|
등록번호 |
US-8708315
(2014-04-29)
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국제출원번호 |
PCT/US2009/044718
(2009-05-20)
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§371/§102 date |
20110203
(20110203)
|
국제공개번호 |
WO2009/143276
(2009-11-26)
|
발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
4 |
초록
▼
Disclosed is an impact-reduction box through which the hoisting ropes of a mining shovel or other machine pass. The impact-reduction box includes a roller frame subassembly and spring box subassemblies attached thereto on either side. The impact-reduction box is configured so that when the hoisting
Disclosed is an impact-reduction box through which the hoisting ropes of a mining shovel or other machine pass. The impact-reduction box includes a roller frame subassembly and spring box subassemblies attached thereto on either side. The impact-reduction box is configured so that when the hoisting cables impact the box during undesirable whipping, the roller frame subassembly will move in reaction while the spring box subassemblies will remain essentially motionless. The mining shovel will feel less of the impact of the jolting hoisting rope, and the rope will not suffer the wear and tear of frequent slapping against the machine such that the rope will be less likely to completely break.
대표청구항
▼
1. An impact-reduction box for reducing the impact of cables on a machine when the cables move undesirably and for reducing wear and tear on the cables, the cables being connected to the machine, the impact-reduction box comprising: a roller frame subassembly comprising: a roller frame comprising a
1. An impact-reduction box for reducing the impact of cables on a machine when the cables move undesirably and for reducing wear and tear on the cables, the cables being connected to the machine, the impact-reduction box comprising: a roller frame subassembly comprising: a roller frame comprising a frame top side, a frame bottom side, a frame right side, and a frame left side, the frame top side being connected to the frame right side and the frame left side, the frame bottom side being connected to the frame right side and the frame left side;a plurality of rollers, at least one roller of the plurality being attached to the frame top side and at least another roller of the plurality being attached to the frame bottom side;a plurality of roller frame support blocks, at least one roller frame support block of the plurality being fixedly attached to the frame right side and at least another roller frame support block of the plurality being fixedly attached to the frame left side; anda pair of spring support rods, each spring support rod of the pair of spring support rods being attached to one roller frame support block of the plurality;the roller frame subassembly defining at least one cable pass-through space between at least two rollers of the plurality, each cable pass-through space configured to accommodate passage therethrough of the cable;a plurality of spring box subassemblies, each spring box subassembly of the plurality comprising: a pair of spring box sides;a spring box mounting side attached to each spring box side of the pair of spring box sides, the spring box mounting side being configured to accommodate securing of the spring box mounting side to the machine;a spring box bottom connected to the pair of spring box sides and to the spring box mounting side, the spring box bottom defining a bottom rod insertion hole;a spring retainer plate connected to the pair of spring box sides and to the spring box mounting side, the spring retainer plate including a plurality of retainer plate mounting points, each retainer plate mounting point of the plurality being configured to accommodate securing of the spring retainer plate to the machine, to the pair of spring box sides, or to the spring box mounting side, the spring retainer plate defining a top rod insertion hole;a plurality of springs, each spring of the plurality winding around one or the other spring support rod of the pair of spring support rods, at least one of the plurality of springs being wound around a top portion of the one spring support rod and at least another of the plurality of springs being wound around a bottom portion of the one spring support rod;wherein, when the impact-reduction box is mounted on the machine and the cable passes through the at least one cable pass-through space, when the cable moves undesirably, the cable will impact one of the rollers of the plurality and, therefore, assert a force on the roller such that the force will be asserted on the roller frame subassembly, the roller frame subassembly will thereafter move in response to the force and move relative to each spring box subassembly of the plurality, such that the plurality of roller frame support blocks will move against the plurality of springs, in which case, the plurality of springs will react to the plurality of roller frame support blocks to stabilize the roller frame subassembly, such that the cable's impact on the plurality of rollers will not be fully felt by the machine. 2. The impact-reduction box of claim 1, wherein the roller frame subassembly further comprises a frame middle support attached to the frame top side and to the frame bottom side and positioned between the frame right side and the frame left side. 3. The impact-reduction box of claim 1, wherein the spring box mounting side comprises side mounting holes. 4. The impact-reduction box of claim 1, wherein the pair of spring support rods is approximately two inches in diameter. 5. The impact-reduction box of claim 1, wherein the plurality of retainer plate mounting points comprises retainer plate mounting holes. 6. The impact-reduction box of claim 1, wherein the spring retainer plate is configured to be removable from the plurality of spring box subassemblies so as to accommodate maintenance of the plurality of spring box subassemblies. 7. The impact-reduction box of claim 1, wherein the pair of spring box sides is made of half-inch-thick steel. 8. The impact-reduction box of claim 1, wherein the pair of spring support rods is made of roll steel with approximately two-inch diameters. 9. The impact-reduction box of claim 1, wherein the plurality of roller frame support blocks is configured to move relative to the pair of spring support rods, and wherein the pair of spring support rods is configured to not move relative to the spring retainer plate and the spring box bottom, such that when the cable passing through the at least one cable pass-through space whips, slaps, or moves undesirably and impacts one of the rollers, the roller frame subassembly will move relative to the machine in response to the cable's impact while the pair of spring support rods will not move in response to the cable's impact. 10. The impact-reduction box of claim 1, wherein the plurality of roller frame support blocks is configured to not move relative to the pair of spring support rods, and wherein the pair of spring support rods is configured to move relative to the spring retainer plate and the spring box bottom, such that when the cable passing through the at least one cable pass-through space whips, slaps, or moves undesirably and impacts one of the rollers, the roller frame subassembly and the pair of spring support rods will move relative to the machine in response to the cable's impact while the spring retainer plate and the spring box bottom will not move in response to the cable's impact. 11. The impact-reduction box of claim 10, wherein each roller frame support block of the plurality is welded to one of the pair of spring support rods. 12. The impact-reduction box of claim 1, wherein the plurality of rollers are nylon rollers having diameters in the range of three to four inches. 13. The impact-reduction box of claim 1, wherein at least one roller frame support block of the plurality is welded to the frame right side and at least another roller frame support block of the plurality is welded to the frame left side. 14. The impact-reduction box of claim 1, wherein the frame left side and the frame right side are made of two-by-ten box tubing. 15. The impact-reduction box of claim 1, wherein the frame top side and the frame bottom side are made of one-and-a-half-by-ten channel iron. 16. An impact-reduction box for reducing the impact of cables on a machine when the cables swing undesirably, the cables being connected to the machine, the impact-reduction box comprising: a roller frame subassembly comprising: a roller frame comprising a frame top side, a frame bottom side, a frame right side, and a frame left side, the frame top side being connected to the frame right side and the frame left side, the frame bottom side being connected to the frame right side and the frame left side;a plurality of rollers, at least one roller of the plurality being fixedly attached to the frame top side via a pair of pillow block bearings and at least another roller of the plurality being fixedly attached to the frame bottom side via another pair of pillow block bearings;a plurality of roller frame support blocks, at least one roller frame support block of the plurality being fixedly attached to the frame right side and at least another roller frame support block of the plurality being fixedly attached to the frame left side; anda plurality of spring support rods, each spring support rod of the plurality being attached to one of the roller frame support blocks of the plurality at a middle portion of the spring support rod;the roller frame subassembly defining at least one cable pass-through space between at least two rollers of the plurality, each of the at least one cable pass-through spaces configured to accommodate passage therethrough of the cable;a plurality of spring box subassemblies, each spring box subassembly of the plurality comprising: a pair of spring box sides;a spring box mounting side attached to each spring box side, the spring box mounting side defining a plurality of side mounting points configured to accommodate securing of the spring box mounting side to the machine;a spring box bottom connected to the pair of spring box sides and to the spring box mounting side, the spring box bottom defining a bottom rod insertion hole;a spring retainer plate connected to the pair of spring box sides and to the spring box mounting side, the spring retainer plate defining a plurality of retainer plate mounting points, each retainer plate mounting point of the plurality being configured to accommodate securing of the spring retainer plate to the machine, to the pair of spring box sides, or to the spring box mounting sides, the spring retainer plate defining a top rod insertion hole;a plurality of springs, each spring of the plurality winding around a spring support rod of the plurality of spring support rods, one spring of the plurality being wound around a top portion of one spring support rod of the plurality and another spring of the plurality being wound around a bottom portion of the one spring support rod of the plurality;wherein, when the impact-reduction box is mounted on the machine and the cable passes through the at least one cable pass-through space, when the cable moves undesirably, the cable will impact one of the rollers of the plurality and, therefore, assert a force on the roller such that the force will be asserted on the roller frame subassembly, the roller frame subassembly will thereafter move in response to the force and move relative to each spring box subassembly of the plurality, such that the plurality of roller frame support blocks will move against the plurality of springs, in which case, the plurality of springs will react to the plurality of roller frame support blocks to stabilize the roller frame subassembly, such that the cable's impact on the plurality of rollers will not be fully felt by the machine. 17. An impact-reduction box for reducing the impact of cables on a machine when the cables swing undesirably, the cables being connected to the machine, the impact-reduction box comprising: a roller frame subassembly comprising: an upper frame segment, the upper frame segment comprising a frame top side and an upper frame middle support, the frame top side being connected to the upper frame middle support;a lower frame segment, the lower frame segment comprising: a frame bottom side, a frame right side, a frame left side, and a lower frame middle support, the frame bottom side being connected to the frame right side, the frame left side, and the lower frame middle support;the upper frame segment and the lower frame segment being configured to interconnect with one another;a plurality of rollers, one roller of the plurality being fixedly attached to the frame top side and another roller of the plurality being fixedly attached to the frame bottom side; anda plurality of roller frame support blocks, at least one roller frame support block of the plurality being fixedly attached to the frame right side and at least another roller frame support block of the plurality being fixedly attached to the frame left side; anda plurality of spring support rods, each spring support rod of the plurality being fixedly attached to one roller frame support block of the plurality;the frame left side, the frame top side, the upper frame middle support, the lower frame middle support, and the frame bottom side defining a left cable pass-through space between at least two rollers of the plurality, the left cable pass-through space configured to accommodate passage therethrough of the cable;the frame right side, the frame top side, the upper frame middle support, the lower frame middle support, and the frame bottom side defining a right cable pass-through space between another at least two rollers of the plurality, the right cable pass-through space configured to accommodate passage therethrough of the cable;at least two spring box subassemblies, each spring box subassembly of the at least two spring box subassemblies comprising: a pair of spring box sides;a spring box mounting side attached to each spring box side of the pair of spring box sides, the spring box mounting side defining a plurality of side mounting points configured to accommodate securing of the spring box mounting side to the machine;a spring box bottom connected to the pair of spring box sides and to the spring box mounting side, the spring box bottom defining a bottom rod insertion hole;a spring retainer plate connected to the pair of spring box sides and to the spring box mounting side, the spring retainer plate defining a plurality of retainer plate mounting points, the plurality of retainer plate mounting points being configured to accommodate securing of the spring retainer plate to the machine, to the pair of spring box sides, or to the spring box mounting side, the spring retainer plate defining a top rod insertion hole; anda plurality of springs, each spring of the plurality winding around a spring support rod of the plurality, one spring of the plurality being wound around a top portion of one spring support rod of the plurality, and another spring of the plurality being wound around a bottom portion of the one spring support rod of the plurality;wherein, when the impact-reduction box is mounted on the machine and the cable passes through the left cable pass-through space and the right cable pass-through space, when the cable whips undesirably, the cable will impact one of the rollers of the plurality and, therefore, assert a force on the roller such that the force will be asserted on the roller frame subassembly, the roller frame subassembly will thereafter move in response to the force and move relative to each spring box subassembly of the at least two spring box subassemblies, such that the plurality of roller frame support blocks will move against the plurality of springs, in which case, the plurality of springs will react to the plurality of roller frame support blocks to stabilize the roller frame subassembly, such that the cable's impact on the plurality of rollers will not be fully felt by the machine. 18. The impact-reduction box of claim 17, further comprising: a plurality of block bearings, each block bearing of the plurality supporting at least one roller of the plurality; anda lubrication system, the lubrication system being configured to lubricate the plurality of rollers.
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