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         necting plate 9 is connected to a side of the lower hydraulic
         rope adjusting device 8 by bolts 9-1, a push plate 8-3 is con-
         nected to the connecting plate 9 by connecting bolts 8-2, and
         the push plate 8-3 is connected to the upper part of a square
         threaded disk 8-5 by a set of bolts 8-4, a threaded hole is ar-
         ranged in the lower part of the square threaded disk 8-5, and
         the square threaded disk is thread-connected to the upper
         end of the hydraulic rod of the tensioning hydraulic cylinder
         8-6, and the base of the tensioning hydraulic cylinder 8-6 is
         fixed to a base of the rope adjusting guide frame 6 by a set of
         symmetric bolts 8-7.
           All of the upper rope clamping device 2, the lower hydraulic
         rope locking device 7, and the lower hydraulic rope adjust-
         ing device 8 comprise two wedge-shaped iron blocks 2-2 and
         shims 2-3, a front clamp plate 2-7, and a back clamp plate
         2-8, the shims 2-3 are fixed between the front clamp plate 2-7
         and the back clamp plate 2-8 by a set of bolts 2-6, a tapered
         slot that matches the shape of the wedge-shaped iron block
         2-2 is arranged in each shim 2-3, the wedge-shaped iron block
         2-2 is inserted into the tapered slot, and a roller grate 2-4 is
         arranged at the contact surface between the wedge-shaped
         iron block 2-2 and the tapered slot. The lower hydraulic rope
         locking device 7 and the lower hydraulic rope adjusting device
         8 further comprise a wedge-adjusting lever mechanism 7-5
         and a wedge-adjusting hydraulic cylinder  7-3 respectively,
         the hydraulic rod of the wedge-adjusting hydraulic cylinder
         7-3 is connected to the wedge-shaped iron block 2-2 via the
         wedge-adjusting lever mechanism 7-5, and the cylinder body
         of the wedge-adjusting hydraulic cylinder 7-3 is connected to






                                                              Figure 10: Side view of the shaft guide steel wire rope tensioner.

                                                              the shim 2-3; the tensioning hydraulic cylinder 8-6 and the
                                                              wedge-adjusting hydraulic cylinder 7-3 are connected to a hy-
                                                              draulic pump station 11 respectively, and the hydraulic pump
                                                              station 11 is connected to the control console 5.
                                                               As shown in figure 12, the wedge-adjusting lever mechanism
                                                              7-5 comprises a lever connecting plate 10-3, which has a slide
                                                              slot 10-1 at each end; the wedge-adjusting hydraulic cylinders
                                                              7-3 are arranged at the two sides of the lower hydraulic rope
                                                              locking device 7 and the lower hydraulic rope adjusting device
                                                              8, hydraulic cylinder dual-lug rings 7-2 are arranged at the
                                                              two sides of the shim 2-3, a shim dual-lug ring 7-7 is arranged
                                                              on the lower part of the shim 2-3, a wedge block dual-lug ring
                                                              7-8 is arranged on the lower part of the wedge-shaped iron
                                                              block 2-2, a threaded connector 7-4 is arranged on the end of
                                                              the hydraulic rod of the wedge-adjusting hydraulic cylinder
                                                              7-3, the hydraulic cylinder dual-lug rings 7-2 are connected
                                                              to the cylinder body of the wedge-adjusting hydraulic cylinder
                                                              7-3, the shim dual-lug ring 7-7 is connected to the middle part
                                                              of the lever connecting plate 10-3 via a pin shaft 10-2, the
                                                              wedge dual-lug ring 7-8 is connected to the slide slot 10-1 at
                                                              one end of the lever connecting plate 10-3 via the pin shaft
                                                              10-2, and the threaded connector 7-4 is connected to the slide
                                                              slot 10-1 at the other end of the lever connecting plate 10-3
                                                              via the pin shaft 10-2.
                                                               As shown in figures 8, 9, and 11, under the driving action
                                                              of the pumping station 11, the actions of the tensioning hy-
                                                              draulic cylinder 8-6 can be controlled to adjust the up-down
                                                              movement of the lower hydraulic rope adjusting device 8. As
         Figure 9: Front view of the shaft guide steel wire rope tensioner.  shown in figure 11, all of the rope clamping device 2, the lower

         66     Wire Rope News & Sling Technology   October 2017
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