A pin unloading device with load-balancing heavy wire rope

Abstract

The present invention discloses a pin unloading device for a load-balanced weight wire rope, comprising an outer frame, a movable pressure sleeve, and a jack; the movable pressure sleeve and the jack are arranged on the inner side of the outer frame, and the jack is located above the movable pressure sleeve; one end of the outer frame is used to be fixed on the wire rope, and the other end is used to be fixed on the connecting rod of the wire rope, and the movable pressure sleeve is used to be fixed above the pear-shaped head of the wire rope. When the wire rope is loaded, the pin load is transferred to the unloading device, so that the pin can be ejected smoothly and safely, thereby effectively ensuring that the wire rope pin does not bounce up to cause personal or equipment accidents.

Description

Technical Field

[0001] The invention relates to the technical field of pin shaft disassembly, in particular to a pin shaft unloading device with a load-balancing heavy steel wire rope. Background Art

[0002] The disassembly of the counterweight wire rope is usually carried out under load unloading. After the load is unloaded, the pin shaft is not subjected to tangential stress and can be plugged and unplugged relatively smoothly. However, in some special maintenance situations, the counterweight system cannot be unloaded as a whole. In the prior art, the pin shaft is ejected by hydraulic driving force, but the counterweight wire rope directly ejects the pin shaft when the pin shaft is not unloaded, which may cause the wire rope to release stress instantly and pop out to injure people. In addition, the load force of the counterweight system is large, and it is difficult to directly eject the pin shaft when loaded. Hydraulic ejection may cause irreversible damage to the pin shaft or the pin hole, and is not suitable for unloading and ejecting part of the wire rope pin shaft when the counterweight system is loaded as a whole. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a pin unloading device with a loaded counterweight steel wire rope, so as to safely disassemble the pin when the counterweight steel wire rope is loaded.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is:

[0005] A pin unloading device with a load-balancing weight steel wire rope comprises an outer frame, a movable pressure sleeve, and a jack; the movable pressure sleeve and the jack are arranged on the inner side of the outer frame, and the jack is located above the movable pressure sleeve; one end of the outer frame is used to be fixed on the steel wire rope, and the other end is used to be fixed on the connecting rod of the steel wire rope, and the movable pressure sleeve is used to be fixed above the pear-shaped head of the steel wire rope.

[0006] The beneficial effects of the present invention are: providing a pin unloading device for a load-balanced heavy wire rope, which can unload the tangential force of the pin when the wire rope is loaded, transfer the pin load to the unloading device, and enable the pin to be ejected smoothly and safely, thereby effectively ensuring that the wire rope pin does not bounce up and cause personal or equipment accidents. The longitudinal dimensions of the outer frame are adjustable, which improves the versatility of the device. At the same time, the inner cylindrical surfaces of the upper and lower beams of the outer frame and the inner conical surface of the lower end of the movable pressure sleeve all adopt a large-area surface contact fit to ensure the accuracy of the guide and the tightness of the assembly. Multiple components are assembled in a split manner and fastened by bolts to ensure the convenience of disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a three-dimensional schematic diagram of the assembly of an unloading device of a pin shaft unloading device with a load-balancing heavy steel wire rope according to an embodiment of the present invention;

[0008] Figure 2 A top view of a movable pressing sleeve of a pin shaft unloading device with a load-balancing heavy wire rope according to an embodiment of the present invention;

[0009] Figure 3 It is a cross-sectional view of a movable pressing sleeve of a pin shaft unloading device with a load-balancing heavy wire rope in accordance with an embodiment of the present invention, which cooperates with the pear-shaped head cone surface of the wire rope;

[0010] Figure 4 It is a three-dimensional schematic diagram of a frame upper beam of a pin shaft unloading device with a load-balancing heavy steel wire rope according to an embodiment of the present invention;

[0011] Figure 5 It is a three-dimensional schematic diagram of a frame lower beam of a pin shaft unloading device with a load-balancing heavy steel wire rope according to an embodiment of the present invention.

[0012] Description of labels:

[0013] 1. Frame upper beam; 2. Jack; 3. Movable pressure sleeve; 4. Stud; 5. Frame lower beam; 6. Protective cover; 7. Pear-shaped head of wire rope. DETAILED DESCRIPTION

[0014] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0015] A pin unloading device with a load-balancing weight steel wire rope comprises an outer frame, a movable pressure sleeve, and a jack; the movable pressure sleeve and the jack are arranged on the inner side of the outer frame, and the jack is located above the movable pressure sleeve; one end of the outer frame is used to be fixed on the steel wire rope, and the other end is used to be fixed on the connecting rod of the steel wire rope, and the movable pressure sleeve is used to be fixed above the pear-shaped head of the steel wire rope.

[0016] From the above description, it can be seen that the beneficial effects of the present invention are: providing a pin unloading device for a load-balanced heavy wire rope, which can unload the tangential force of the pin when the wire rope is loaded, and transfer the pin load to the unloading device, so that the pin can be ejected smoothly and safely, thereby effectively ensuring that the wire rope pin does not bounce up and cause personal or equipment accidents. The longitudinal dimensions of the outer frame are adjustable, which improves the versatility of the device. At the same time, the inner cylindrical surfaces of the upper and lower beams of the outer frame and the inner conical surface of the lower end of the movable pressure sleeve all adopt a large-area surface contact fit to ensure the accuracy of the guide and the tightness of the assembly. Multiple components are assembled in a split manner and fastened by bolts to ensure the convenience of disassembly and assembly.

[0017] Furthermore, the jack is a separate hydraulic jack, and the jack is symmetrically placed on the upper end surface of the movable pressing sleeve.

[0018] From the above description, it can be seen that the hydraulic jack has a large upper and lower contact surface and a low center of gravity. It can be directly and stably placed on the movable pressure sleeve to ensure the balance of downward pressure on both sides. The jack can then be pre-tightened and fixed by adjusting the four studs and matching nuts.

[0019] Furthermore, the inner side of the lower end of the movable pressing sleeve is a conical notch which is narrow at the top and wide at the bottom.

[0020] From the above description, it can be seen that the inner conical surface of the movable pressure sleeve matches the outer conical surface of the pear-shaped head of the wire rope, which ensures the accuracy of the guidance and transmits the pressure from the jack to push the pear-shaped head of the wire rope to move down smoothly.

[0021] Furthermore, the outer frame includes an upper frame beam, a lower frame beam, and studs, and two ends of the studs are respectively connected to the upper frame beam and the lower frame beam.

[0022] It can be seen from the above description that the longitudinal dimension of the outer frame is adjustable, which improves the versatility of the device.

[0023] Furthermore, four reinforcing rib plates are symmetrically arranged between the outer cylindrical surface of the frame upper beam and the bottom plate; and a protective cover is arranged between the frame upper beam and the steel wire rope.

[0024] From the above description, it can be seen that four reinforcing ribs are symmetrically designed between the outer cylindrical surface of the frame upper beam and the bottom plate, and a nylon sleeve is designed between the frame upper beam and the steel wire rope to protect the steel wire rope.

[0025] Furthermore, four reinforcing rib plates are symmetrically arranged between the outer cylindrical surface of the frame lower beam and the top plate; the inner cylindrical surface of the frame lower beam is interference fit with the connecting rod of the wire rope, and the top plate of the frame lower beam is used to fit with the end face of the hexagonal head of the connecting rod of the wire rope.

[0026] From the above description, it can be seen that four reinforcing ribs are symmetrically designed between the outer cylindrical surface of the frame lower beam and the top plate. The inner cylindrical surface of the frame lower beam and the connecting rod are interference fit, and the top plate of the frame lower beam and the end face of the hexagonal head of the connecting rod are fitted to ensure that the frame lower beam does not move upward during the top pressure process.

[0027] Furthermore, the frame upper beam, frame lower beam and movable pressing sleeve are all bilaterally symmetrical split structures, which are fastened together by bolts.

[0028] From the above description, it can be seen that the inner cylindrical surfaces of the upper and lower beams of the outer frame and the inner conical surface of the lower end of the movable pressure sleeve all adopt a large-area surface contact fit, which ensures the accuracy of the guidance and the tightness of the assembly. The components are all assembled in a split manner and fastened by bolts to ensure the convenience of disassembly and assembly.

[0029] The above-mentioned pin unloading device for a loaded counterweight steel wire rope of the present invention can safely remove the pin when the counterweight steel wire rope is loaded, and is described below through specific implementation methods:

[0030] Embodiment 1

[0031] Please refer to Figure 1 A pin unloading device with a load-balancing weight wire rope is characterized in that it includes an outer frame, a movable pressure sleeve 3, and a jack 2; the movable pressure sleeve 3 and the jack 2 are arranged on the inner side of the outer frame, and the jack 2 is located above the movable pressure sleeve 3; one end of the outer frame is used to be fixed on the wire rope, and the other end is used to be fixed on the connecting rod of the wire rope, and the movable pressure sleeve 3 is used to be fixed above the pear-shaped head 7 of the wire rope.

[0032] Specifically, the movable pressure sleeve 3 is used to place the jack 2 and transmit the pressure of the jack 2 to the pear-shaped head, pushing the pear-shaped head 7 of the wire rope downward to unload the pin. By symmetrically arranging two jacks 2 and building pressure at the same time, the downward pressure on both sides is balanced, and the pear-shaped head 7 of the wire rope is pushed downward smoothly.

[0033] Among them, the jack 2 is a split hydraulic jack. Specifically, since the stroke required for the pin shaft to unload is extremely small, and in order to ensure the stability of the jacking process, an ultra-thin split hydraulic jack is used, and a manual hydraulic pump is used for pressurization. Since the ultra-thin hydraulic jack has a large upper and lower contact surface and a low center of gravity, it can be directly and stably placed on the movable pressure sleeve 3, and then the jack 2 can be pre-tightened and fixed by adjusting the four studs 4 and the matching nuts. The jacks 2 are symmetrically placed on the upper end surface of the movable pressure sleeve 3, and the jacks 2 on both sides simultaneously build pressure and press the movable pressure sleeve 3, pushing the pear-shaped head 7 of the movable wire rope downward to unload the pin shaft load.

[0034] Please refer to Figure 2 and Figure 3 The inner side of the lower end of the movable pressing sleeve 3 is a conical notch that is narrow at the top and wide at the bottom. Specifically, the inner conical surface of the movable pressing sleeve 3 matches the outer conical surface of the pear-shaped head 7 of the wire rope. The two jacks 2 placed on the movable pressing sleeve 3 are constrained by the outer frame and simultaneously press the movable pressing sleeve 3 downward. The movable pressing sleeve 3 transmits the pressure of the jacks 2 downward to the pear-shaped head 7 of the wire rope, and the pear-shaped head 7 of the wire rope is pressed downward to realize the pin unloading.

[0035] Please refer to Figure 1 The outer frame includes an upper frame beam 1, a lower frame beam 5, and a stud 4, and the two ends of the stud 4 are respectively connected to the upper frame beam 1 and the lower frame beam 5. Specifically, the outer frame structure is composed of an upper frame beam 1, a lower frame beam 5, four studs 4 and matching nuts, and the longitudinal size of the outer frame is adjusted by the nuts.

[0036] Embodiment 2

[0037] The difference between this embodiment and the first embodiment is that the structures of the components of the outer frame and the movable pressing sleeve 3 are further defined:

[0038] Please refer to Figure 4 Four reinforcing ribs are symmetrically welded between the outer cylindrical surface of the frame upper beam 1 and the bottom plate; a nylon protective cover is provided between the frame upper beam 1 and the wire rope. Specifically, when assembling the frame upper beam 1, firstly put the nylon protective cover 6 on the wire rope, and then pre-tighten the fastening bolts of the frame upper beam 1 and hold it tightly on the nylon protective cover 6.

[0039] Please refer to Figure 5 Four reinforcing rib plates are symmetrically welded between the outer cylindrical surface of the frame lower beam 5 and the top plate; the inner cylindrical surface of the frame lower beam 5 is interference fit with the connecting rod of the wire rope, and the top plate of the frame lower beam 5 is used to fit with the end face of the hexagonal head of the connecting rod of the wire rope and is pre-tightened on the connecting rod of the wire rope.

[0040] Among them, the frame upper beam 1, the frame lower beam 5 and the movable pressing sleeve 3 are all bilaterally symmetrical split structures, which are fastened together by bolts. Specifically, the frame upper beam 1 is fine-tuned longitudinally until the distance between the frame upper beam 1 and the movable pressing sleeve 3 can just fit the hydraulic jack 2, and the fastening bolts of the frame upper beam 1 are tightened. The split structure of the frame upper beam 1, the frame lower beam 5 and the movable pressing sleeve 3 ensures the convenience of disassembly and assembly.

[0041] In summary, the present invention provides a pin unloading device with a load-balancing weight wire rope, which transfers the pin load to the unloading device by adding an external frame outside the wire rope, so that the pin can be pushed out smoothly and safely, thereby effectively ensuring that the wire rope pin does not bounce up and cause personal or equipment accidents.

[0042] It should be noted that, for the convenience of description, the aforementioned method embodiments are all described as a series of action combinations, but those skilled in the art should be aware that the present invention is not limited by the described action sequence, because according to the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0043] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pin unloading device with a load-balancing heavy wire rope, characterized in that: It comprises an outer frame, a movable pressing sleeve and a jack; the movable pressing sleeve and the jack are arranged on the inner side of the outer frame, and the jack is located above the movable pressing sleeve; one end of the outer frame is used to be fixed on the steel wire rope, and the other end is used to be fixed on the connecting rod of the steel wire rope, and the movable pressing sleeve is used to be fixed above the pear-shaped head of the steel wire rope; The jack is a separate hydraulic jack, and the jack is symmetrically placed on the upper end surface of the movable pressing sleeve; The inner side of the lower end of the movable pressing sleeve is a conical notch which is narrow at the top and wide at the bottom; The outer frame comprises an upper frame beam, a lower frame beam, and a stud, and two ends of the stud are respectively connected to the upper frame beam and the lower frame beam; The frame upper beam, frame lower beam and movable pressing sleeve are all bilaterally symmetrical split structures, which are fastened together by bolts.

2. A pin unloading device with a load-balanced heavy wire rope according to claim 1, characterized in that: A reinforcing rib plate is symmetrically arranged between the outer cylindrical surface of the frame upper beam and the bottom plate; and a protective cover is arranged between the frame upper beam and the steel wire rope.

3. A pin unloading device with a load-balanced heavy wire rope according to claim 1, characterized in that: A reinforcing rib plate is symmetrically arranged between the outer cylindrical surface and the top plate of the frame lower beam; the inner cylindrical surface of the frame lower beam is interference fit with the connecting rod of the wire rope, and the top plate of the frame lower beam is used to fit with the end face of the hexagonal head of the connecting rod of the wire rope.

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