Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B19/00—Mining-hoist operation
  • B66B19/02—Installing or exchanging ropes or cables

Definitions

• the invention relates to a clamping and pulling device for cyclically pulling out the hoisting ropes optionally one of the dreams of a hoistway conveyor system, comprising in the longitudinal direction of the hoisting ropes fixed clamping elements and displaceably arranged clamping elements, each two themselves
• the pulling of ropes for the purpose of relieving the ropes by means of a clamping and pulling devices is, for example, the rope change, removal and installation of
• This generic clamping and traction device is provided with slidably fixed in the longitudinal direction of the hoisting ropes and displaceable by adjusting cylinders, which in pairs cause the hoisting rope comprising a non-positive contact pressure on the hoisting rope and between each of which recesses are used to shorten the necessary stroke, further between the opposite movable
• Clamping wedges and the fixed clamping wedges two rolling elements are arranged.
• the recesses serve as rest positions in which the rolling elements are when the movable
• Clamping wedges of the clamping and pulling device are completely open and therefore hang the hoisting ropes freely.
• the recesses are required to adjust the path of movement of the slidable
• Clamping wedges for a sufficient clamping effect to be limited. Without the recesses also an extremely long path of movement would be required to provide a sufficient distance between the clamping members for the immersion of the hoisting ropes.
• the wedged clamping surfaces of the movable clamping wedges and the fixed clamping wedges are divided in the longitudinal direction of the hoisting rope alternately in clamping surfaces with downwardly facing and upwardly pointing wedge tips.
• the fixed clamping wedges and the recesses continuous gears are arranged, engage in the gears which are rotatably mounted with respect to the rolling elements.
• the movable clamping wedges are provided with bolts, which are guided in a profile groove.
• a major disadvantage of the known clamping and traction device consists in their large height. Another disadvantage is the high space requirement over the
• the invention is based on the object to provide a clamping and pulling device of the type mentioned, which has a lower
• Traction device reduces the space requirement in the conveyor frame or tower, which increases the cost of the establishment of the
• clamping elements according to the invention are that the geometry of the clamping surfaces over the prior art can be simple.
• the clamping surfaces are formed in the simplest case as planes without the need for complex transition areas, as required in the prior art.
• each wedged clamping surface with upward pointing wedge tip and the opposite wedged clamping surface with downward pointing wedge tip hereinafter also referred to as clamping surface set, each arranged a plurality of rolling elements.
• Rolling friction of the rolling elements is generally lower than the direct sliding friction between the wedged clamping surfaces by a power of ten.
• the clamping and pulling device according to the invention can be used with the use of advantageous rolling friction even at high cable loads and low cable distances.
• the plurality of rolling elements between the clamping surfaces of a clamping surface set in a WälzSystemurafig be supported, which is attached to the fixed or displaceable clamping elements.
• the WälzMechshifig can for example consist of two elongated flat profiles, between which the rolling elements are mounted.
• the distance between the flat profiles corresponds approximately to the width of the clamping surfaces of the clamping surface set.
• Engage teeth can completely eliminated according to the invention.
• standard components can be used. Since it concerns the rolling elements to wear parts, these can be summarized in a
• each clamping element has three wedged clamping surfaces, wherein the clamping elements with the aid of two of the clamping surfaces the
• the two clamping surfaces associated rolling elements are due to the smaller width of the two clamping surfaces less long than the wider clamping surface associated rolling elements. As a result, an overload of the clamping elements is avoided.
• the two co-rotating clamping surfaces that receive the rope load in the first direction are left and right of the arranged opposite counter-clamping surface which receives the rope load in the opposite direction.
• Clamping element has a flat boundary surface, the flat boundary surfaces of the opposite
• slidable clamping elements are arranged at a distance parallel to each other, starting from the flat boundary surfaces in each displaceable clamping element in each case one in
• Groove extending longitudinally of the hoisting rope is inserted, which is part-circular in cross-section and extends over the entire length of the flat boundary surface and the grooves are aligned with each other in opposing sliding clamping elements.
• the grooves in the oppositely displaceable clamping elements positively take each a cylindrical guide part of a two-part
• Guide member is pivotable about a vertical axis parallel to Nutverlauf in the groove.
• a Seilbettungsnut is introduced to the hoisting rope, which can be brought flush to the conveyor rope to the plant.
• Deadlock occurs. Since the displaceable clamping elements come in a slight vertical movement in the cable direction directly to the conveyor rope to the plant, which are in the already known clamping and pulling device
• bearing metal in particular bearing metal.
• This is an alloy of lead, tin, antimony and copper, which is particularly advantageous for plain bearings. Due to the relatively low hardness and compressive strength of the bearing metals is preferably
• the collar has means for guiding the pivotal movement of the guide member in the respective groove.
• each displaceable clamping part by means of at least one
• Traction device preferably comprises a removable
• the profile groove is preferably introduced into the removable front panel.
• the fixed and movable wedge elements are arranged between the plates.
• the profile groove is preferably formed such that the clamping elements always have their greatest distance from one another in the vertical middle position along their displacement path in the direction of the conveying cable. From the vertical middle position, the movable clamping elements can be moved by means of the drive in the direction of the hoisting rope both upwards and downwards.
• Figure 1 is an isometric view of a
• Figure 2 shows a front view of a clamping and pulling device according to the invention for three hoisting ropes with
• Figure 3 is a plan view of the clamping and pulling device
• FIG. 4 shows an isometric view of a guide part of a two-part guide element of the clamping and pulling device according to the invention
• Figure 5 is a partial side view of a
• Figure 6 is a representation along the section line A-A
• Figure 7 is a view along the section line A-A
• Figure 5 in the first operating position of the guide element Figure 9 is a representation along the section line B-B after
• FIG. 5 in the second operating position of FIG
• Figure 11 is a schematic representation along the
• FIG. 12 is a schematic partial view of the clamping
• Figure 13 is a schematic partial view of the clamping
• Traction device for illustrating the load transfer in opposite direction to Figure 12 without representation of the rolling elements and Figure 14 is a partial front view of a
• FIG. 1 Clamping and pulling device according to the invention for illustrating the course of the guide grooves for guiding the displaceable clamping elements.
• Clamping elements (5) engaging drives (26) are connected to reciprocate (see Figure 2).
• drive (26) for example, a shown in Figure 2
• the two displaceable clamping elements (5) comprise
• Clamping surfaces results from an imaginary vertical plane, which includes the wedge angle () with the wedged clamping surface (6, 7).
• the wedge angles () are correct for all
• the housing comprises a plurality of front panels (8) shown in Figure 1 and a frame-like rear panel (9), not shown in Figure 1 (see Figure 3).
• pointing wedge tip and its opposite wedge-shaped clamping surface (7) with pointing down wedge tip each have a plurality of rolling elements (10) are arranged, which are mounted in a WälzSystemurafig (11).
• the WälzSystemurafige (11) are formed of two elongated plate-shaped profiles (12), between which the rolling elements (10) extend.
• the Wälz stresses niefige (11) are on cuboid blocks (13 a, b) releasably supported by a bolt (14) which engages arranged in the ends of the profiles slots.
• the slots allow a relative movement of the
• the wider blocks (13 a) are arranged on the upper end face of the fixed clamping elements (4), while the narrower blocks (13 b) are arranged on the upper end face of the displaceable clamping elements (5).
• the two displaceable clamping elements (5) each have a flat boundary surface (15 a, b), which are arranged at a distance parallel to each other. Starting from the flat boundary surface (15 a, b) is in each of the two displaceable clamping elements (5) in the longitudinal direction (3) of the hoisting rope (2) extending, in cross section
• the guide element (17) comprises two cylindrical guide parts (18 a, b), wherein in each guide part (18 a, b) a Seilbettungsnut (19) is introduced.
• the guide members (18 a, b) are within the grooves (16) in the displaceable clamping elements (5) about an axis parallel to the course of the groove (16) pivotally, as is apparent in particular from Figures 6-9. From the
• cylindrical guide parts (18 a, b) serving as a stop annular collar (20) is arranged both at the base and the top surface, which when open
• a pin (22) which engages in a guide slot (21), which guides the pivoting movement of the guide parts (18 a, b) about its pivot axis and prevents the
• Front panel (8) in Figure 14 can be seen.
• the displaceable clamping elements (5) due to the largest distance there between the opposite guide grooves (24), the greatest distance from each other.
• Figures 7 and 9 show the position of the guide members (18 a, b) take in the middle position before the Kiemmund traction device (1) is pushed into the plane of the hoisting ropes (2). In this open position the
• Figure 2 is a complete clamping and pulling device (1) for receiving three hoisting ropes (2) in
• Figure 3 shows a plan view of the clamping
• FIG. 3 the front panels (8) are mounted.
• the front plates (8) by means of screw (27) on the
• FIG. 10 shows the sections along the lines CC and EE according to FIG. 9, to illustrate the course of FIG
• Clamping element (4 or 5) extends, shown.
• the wedged clamping surfaces (6, 7) form together with the imaginary
• Figure 12 illustrates the load bearing by clamping surfaces shown in Figure 10 (6, 7) by a downwards in the direction of the hoisting rope (2) load, said
• Figure 13 illustrates the load bearing by the clamping surfaces (6, 7) shown in Figure 11 by an upward in the direction of the hoisting rope (2) load, each
• Clamping surface (6) has an upwardly tapering inner Clamping wedge of the displaceable clamping element (5) forms.
• the first by means of the drives (26) biased movable clamping elements (5) are already in a self-locking position in which the hoisting rope (2) by the high clamping force between the guide members (18 a, b) of the guide element (17) is compressed.

Landscapes

• Clamps And Clips (AREA)
• Load-Engaging Elements For Cranes (AREA)
• Types And Forms Of Lifts (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=44627854

Family Applications (1)

Country Status (6)

Cited By (3)

Families Citing this family (3)

Citations (4)

Family Cites Families (4)

• 2010
  • 2010-07-22 DE DE102010032004A patent/DE102010032004A1/de not_active Withdrawn
• 2011
  • 2011-06-30 WO PCT/EP2011/061021 patent/WO2012010391A1/de active Application Filing
  • 2011-06-30 RU RU2013107708/11A patent/RU2561650C2/ru active
  • 2011-06-30 CA CA2804544A patent/CA2804544C/en active Active
  • 2011-06-30 EP EP11729300.1A patent/EP2585396B1/de active Active
• 2013
  • 2013-01-07 ZA ZA2013/00158A patent/ZA201300158B/en unknown

Patent Citations (5)

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