A hoisting wire rope length adjustment device

Abstract

The present invention discloses a length adjustment device for a hoisting steel wire rope, and relates to the technical field of engineering hoisting structures. The present invention comprises a main hoisting rope, and four evenly distributed sub-hoisting ropes are fixedly installed at the bottom end of the main hoisting rope, and the bottom ends of the sub-hoisting ropes are fixedly installed with adjustment tools, and the inside of the adjustment tools are fixedly installed with a winding frame, and one side of the winding frame is fixedly installed with a winding motor, and the output end of the winding motor is connected to the winding frame for driving, and the winding frame has a steel strand wound inside. The present invention arranges a winding frame, so that the winding motor drives the winding frame to reel in and unreel the steel strand, so that the length of the steel strand changes, and the steel strand is tightened and fixed by a through-type hydraulic press, and the overall rope length is adjusted by using the winding motor and the through-type hydraulic press to adjust the length of the steel strand, so that the change in the rope length has a very large upper limit, and the through-type hydraulic press is used to lock the steel strand, thereby improving the adjustment efficiency and accuracy of the rope length.

Description

Technical Field

[0001] The invention relates to the technical field of engineering hoisting structures, and in particular to a hoisting wire rope length adjustment device. Background Art

[0002] In the hoisting construction in the engineering field, it is often encountered that the length of the hoisting wire rope needs to be adjusted due to the change of the position of the hoisting components during the lifting and installation stages. The more common method is to connect the fall chain with the wire rope and adjust the length of the fall chain to achieve the change of the rope length. However, this method has many defects for components with larger external dimensions and large changes in lifting and installation positions. The change in the position of the larger components will cause the length of the wire rope to change greatly. For example, for a 40m long component, the length of the wire rope changes by nearly 10m-20m from the assembly state of being placed horizontally on the ground to the installation state after being rotated 60° upright.

[0003] The conventional fall chain method of adjusting rope length has the following defects: 1. When the rope length changes greatly, the adjustment length of the fall chain is limited and cannot meet the requirements of the rope length adjustment range; 2. The efficiency of the fall chain in adjusting rope length is very low, especially for large-tonnage fall chains; 3. The adjusted length change value cannot be directly monitored and requires manual measurement; 4. If several steel ropes are adjusted at the same time, the overall coordination between the fall chains is poor; 5. It is impossible to accurately ensure that the force on each steel rope is distributed according to the design value after the heavy object is lifted. For this reason, a hoisting wire rope length adjustment device is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the defects of the current method of adjusting the rope length of the hoisting wire rope using a conventional fall chain, and provide a hoisting wire rope length adjustment device.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A hoisting wire rope length adjustment device comprises a main hoisting rope, four evenly distributed sub-hoisting ropes are fixedly installed at the bottom end of the main hoisting rope, and the bottom ends of the sub-hoisting ropes are fixedly installed with adjustment tools, and a winding frame is fixedly installed inside the adjustment tools, and a winding motor is fixedly installed on one side of the winding frame, and the output end of the winding motor is connected to the winding frame for driving, and a steel strand is wound inside the winding frame, and a through-type hydraulic press is fixedly installed inside the adjustment tool, and the through-type hydraulic press is located on the winding frame The bottom of the adjusting tool is provided with an upper through hole and a lower through hole, the upper through hole is located between the winding frame and the through-type hydraulic press, and the lower through hole is located at the bottom of the through-type hydraulic press. The bottom end of the steel strand passes through the upper through hole, the through-type hydraulic press and the lower through hole in sequence and is fixedly installed with a hook. Two speed measuring components are provided at the bottom of the adjusting tool, and the two speed measuring components are symmetrically distributed on both sides of the steel strand. The speed measuring components are used to measure and warn the adjustment speed of the steel strand rope length.

[0007] Furthermore, the speed measuring assembly includes a merging guide rail fixedly mounted on the bottom of the adjusting tooling, a merging slide plate is slidably mounted on the merging guide rail, a side mounting plate is fixedly mounted on one end of the merging guide rail, a merging electric push rod is fixedly mounted on the side wall of the side mounting plate, the telescopic end of the merging electric push rod faces the steel strand and is arranged at the bottom of the merging slide plate, rotating wheel frames are fixedly mounted on both sides of the merging slide plate, a same control shaft is rotatably mounted between the two rotating wheel frames, a speed measuring wheel hub is fixedly sleeved on the control shaft, a speed sensor is fixedly mounted on one side of the rotating wheel frame, and the sensing end of the speed sensor is fixedly mounted on one end of the control shaft.

[0008] Furthermore, a locking electric push rod and a hanging telescopic rod are fixedly installed at the bottom of the combined skateboard, a locking gear rod is fixedly installed at the bottom end of the hanging telescopic rod, both ends of the control shaft are fixedly sleeved with control gears, the locking gear rod is adapted to one of the control gears, and the locking gear rod is fixedly connected to the telescopic end of the locking electric push rod.

[0009] Furthermore, an outer grinding roller is sleeved on the winding motor.

[0010] Furthermore, an auxiliary latching tooth is provided at the bottom of the combined slide plate, and the auxiliary latching tooth is adapted to another of the control gears. A control frame is fixedly mounted on the telescopic end of the combined electric push rod, and the auxiliary latching tooth is fixedly mounted on one end of the control frame.

[0011] Furthermore, the outer grinding roller is a double half-shell structure, and both the outer grinding roller and the speed measuring hub are provided with assembly holes, and the interior of the assembly holes is threaded with assembly bolts.

[0012] Furthermore, a spring rod is fixedly mounted on the bottom of the merging slide plate, the spring rod is located between the locking gear rod and the auxiliary latching tooth, and the spring rod is fixedly mounted on the telescopic end of the merging electric push rod.

[0013] Furthermore, a plurality of evenly distributed friction-reducing balls are rotatably mounted on the inner walls of the upper through hole and the lower through hole.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention provides a winding frame, so that the winding motor drives the winding frame to wind and unwind the steel strand, so that the length of the steel strand changes, and the through-type hydraulic press tightens and fixes the steel strand. The overall rope length is adjusted by adjusting the length of the steel strand using the winding motor and the through-type hydraulic press, so that the change amount of the rope length has a very large upper limit, and the through-type hydraulic press is used to lock the steel strand, thereby improving the adjustment efficiency and accuracy of the rope length;

[0016] 2. The present invention adopts system calculation to determine the adjustment rate and step length of each through-type hydraulic press in advance, so that each through-type hydraulic press can be adjusted synchronously, with high overall coordination, which greatly avoids the situation that the forces of each lifting rope and steel strand are uneven, and each group of winding motors and through-type hydraulic presses can be controlled and driven separately, and can also be adjusted synchronously, which can be manually controlled or automatically adjusted by the system, with high flexibility. The rope length change and the force conditions of each lifting rope and steel strand can be remotely monitored in real time through the computer control terminal, which improves the safety of operation;

[0017] 3. The present invention sets a speed measuring component so that the combined electric push rod drives the speed measuring hub to press against the steel strand, so that the steel strand drives the speed measuring hub to rotate, and the speed sensor senses and monitors the speed of the speed measuring hub. When the speed is abnormal, it means that the adjustment speed of the steel strand is abnormal. At this time, the speed sensor will send an alarm signal to the system, and the control system will immediately stop the rope length adjustment action and perform self-checking, thereby reducing the occurrence of accidents;

[0018] 4. The present invention sets a locking gear rod, so that when the rope length adjustment action is abnormal, the locking electric push rods on both sides will drive the locking gear rod to jam the control gear, so that the control shaft cannot continue to rotate, and the control shaft is used to press the steel strand, so that the steel strand cannot continue to move. In conjunction with the stop of the winding motor and the locking of the through-type hydraulic press, the rope length adjustment action is completely stopped, the braking action is completed, and the steel strand is prevented from continuing to move and causing accidents;

[0019] 5. The present invention provides an outer grinding roller so that the outer grinding roller can directly contact the steel strand instead of the speed measuring wheel hub, thereby increasing the friction force on the steel strand and avoiding the wear of the speed measuring wheel hub itself. By providing an assembly bolt, after the outer grinding roller is used for a long time or is severely worn, the assembly bolt can be screwed out, and the two half shells of the outer grinding roller can be removed from the speed measuring wheel hub and replaced, thereby ensuring the stable braking action.

[0020] 6. The present invention provides auxiliary latching teeth so that after the locking gear rod locks the control gear on one side, the combined electric push rod can drive the combined slide plate to continue sliding for a certain distance, so that the steel strand is completely compressed, and at the same time, the control frame drives the auxiliary latching teeth to lock the control gear on the other side, so that both ends of the control shaft are locked, thereby improving the stability of the speed measuring wheel hub locking;

[0021] 7. The present invention arranges a spring rod so that the electric push rod is combined to drive the speed measuring wheel hub to compress the steel strand, and at the same time drives the spring rod to be compressed, so that the speed measuring wheel hub has a large pre-tightening force when compressing the steel strand. At the same time, the spring rod provides a movement margin for the continued movement of the auxiliary clamping teeth, so that after the steel strand is compressed, the spring rod can continue to be compressed for a certain distance, so that the auxiliary clamping teeth can jam the control gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the adjusting tooling of the present invention;

[0024] Figure 3 The present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the adjustment tooling and the speed measuring component of the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the bottom of the adjusting tool of the present invention;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the speed measuring component of the present invention from a first viewing angle;

[0028] Figure 7 is a schematic diagram of the three-dimensional structure of the speed measuring assembly of the present invention from a second viewing angle;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the speed measuring hub and the outer grinding roller of the present invention;

[0030] 10. The jacking rod is a gear that is used to lift the gear of the vehicle. The jacking rod is a gear that is used to lift the gear of the vehicle. The jacking rod is a gear that is used to lift the gear of the vehicle. The jacking rod is a gear that is used to lift the gear of the vehicle. The jacking rod is a gear that is used to lift the gear of the vehicle. The jacking rod is a gear that is used to lift the gear of the vehicle. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] like Figures 1 to 8 As shown, a hoisting wire rope length adjustment device comprises a main hoisting rope 1, at the bottom end of which four evenly distributed sub-hoisting ropes 2 are fixedly installed, and at the bottom end of each sub-hoisting rope 2 an adjustment tool 3 is fixedly installed. Figure 2As shown, a winding frame 4 is fixedly installed inside the adjusting tool 3, and a winding motor 5 is fixedly installed on one side of the winding frame 4. The output end of the winding motor 5 is connected to the winding frame 4. Figure 3 As shown, the steel strand 6 is wound inside the winding frame 4, and a through-type hydraulic press 7 is fixedly installed inside the adjusting tool 3. The through-type hydraulic press 7 is located at the bottom of the winding frame 4, as shown in FIG. Figure 5 As shown, an upper through hole 101 and a lower through hole 102 are provided inside the adjusting tool 3. The upper through hole 101 is located between the winding frame 4 and the through-type hydraulic press 7, and the lower through hole 102 is located at the bottom of the through-type hydraulic press 7. The bottom end of the steel strand 6 passes through the upper through hole 101, the through-type hydraulic press 7 and the lower through hole 102 in sequence and is fixedly installed with a hook 8. In this embodiment, the control system on the computer side is used to calculate the rope length change and the tension of each lifting rope 2 and the steel strand 6, and then control the expansion and contraction amount and expansion and contraction speed of each through-type hydraulic press 7 to achieve the final adjustment purpose. The control system mainly includes a winding motor 5, a winding frame 4, a steel strand 6 and a through-type hydraulic press. The steel strand-through-core jack system composed of the core hydraulic press 7, the HPU hydraulic power unit (pump station), the information processing unit, the computer control terminal APP, the power supply system, the information transmission weak current system, the hydraulic pipeline system, etc., two speed measuring components are arranged at the bottom of the adjusting tool 3, and the two speed measuring components are symmetrically distributed on both sides of the steel strand 6. The speed measuring components are used to measure and warn the adjustment speed of the rope length of the steel strand 6; specifically, the hoisting wire rope length adjustment device is provided with a winding rack 4, so that there are four hanging points at the bottom end of the main hoisting rope 1, and the combined length of the hoisting rope 2, the adjusting tool 3 and the steel strand 6 together constitutes a single point of hanging. Rope length, and when it is necessary to adjust the length of the hanging rope at four points, the through-type hydraulic press 7 can loosen the clamping of the steel strand 6, and then the winding motor 5 drives the winding frame 4 to unwind or rewind the steel strand 6, so that the length of the steel strand 6 changes, and then the combined length of the sub-hoisting rope 2, the adjusting tool 3 and the steel strand 6 is changed to adjust the length of the hanging rope. Finally, the winding motor 5 stops, and the through-type hydraulic press 7 tightens the steel strand 6 to fix the steel strand 6 to complete the adjustment of the rope length. The overall rope length is adjusted by adjusting the length of the steel strand using the winding motor 5 and the through-type hydraulic press 7, so that the change in the rope length has a great upper limit, and the through-type hydraulic press The core-type hydraulic press 7 locks the steel strand 6, which improves the efficiency and accuracy of rope length adjustment. The adjustment rate and step size of each through-type hydraulic press 7 can be determined in advance according to calculation, so that each through-type hydraulic press 7 can be adjusted synchronously, with high overall coordination, which greatly avoids the situation where the forces on each branch lifting rope 2 and the steel strand 6 are uneven. Moreover, the winding motor 5 and the through-type hydraulic press 7 of each group are controlled and driven separately, and can also be adjusted synchronously. They can be manually controlled or automatically adjusted by the system, with high flexibility. The rope length change and the force conditions of each branch lifting rope 2 and the steel strand 6 can be remotely monitored in real time through the computer control terminal, which greatly improves the safety of the operation of the hanging equipment.

[0036] like Figure 4 , Figure 6 As shown, the speed measuring assembly includes a merging guide rail 9 fixedly mounted on the bottom of the adjusting tool 3, a merging slide plate 10 is slidably mounted on the merging guide rail 9, a side mounting plate 11 is fixedly mounted on one end of the merging guide rail 9, a merging electric push rod 12 is fixedly mounted on the side wall of the side mounting plate 11, the telescopic end of the merging electric push rod 12 faces the steel strand 6 and is arranged at the bottom of the merging slide plate 10, and a rotating wheel frame 13 is fixedly mounted on both sides of the merging slide plate 10, as shown in FIG. Figure 7 As shown, a same control shaft 14 is rotatably mounted between the two rotating wheel frames 13, and a speed measuring hub 15 is fixedly sleeved on the control shaft 14. In this embodiment, the two speed measuring hubs 15 are respectively located on both sides of the steel strand 6, and a speed sensor 16 is fixedly mounted on one side of the rotating wheel frame 13, and the sensing end of the speed sensor 16 is fixedly mounted on one end of the control shaft 14; specifically, by setting a speed measuring component, when the winding motor 5 drives the steel strand 6 to adjust the rope length, the merging electric push rods 12 on both sides will respectively drive the merging slide plate 10 along the merging guide rail 9 It slides toward the steel strand 6, thereby driving the speed measuring hubs 15 on both sides to press against the steel strand 6 through the rotating wheel frame 13 and the control shaft 14, so that the movement of the steel strand 6 can drive the speed measuring hubs 15 on both sides to rotate together. At this time, the speed sensor 16 can sense and monitor the speed of the two speed measuring hubs 15. When the speed of the speed measuring hub 15 abnormally accelerates or slows down, it means that the adjustment speed of the steel strand 6 is abnormal. At this time, the speed sensor 16 will send an alarm signal to the system, and the control system will immediately stop the rope length adjustment action and perform self-inspection, thereby reducing the occurrence of accidents.

[0037] like Figure 6 As shown, a locking electric push rod 17 and a hanging telescopic rod 18 are fixedly installed at the bottom of the combined slide plate 10, a locking gear rod 19 is fixedly installed at the bottom end of the hanging telescopic rod 18, and both ends of the control shaft 14 are fixedly sleeved with control gears 23, the locking gear rod 19 is adapted to one of the control gears 23, and the locking gear rod 19 is fixedly connected to the telescopic end of the locking electric push rod 17; specifically, by setting the locking gear rod 19, when the rope length adjustment action of the steel strand 6 is abnormal, the locking electric push rods 17 on both sides will actively retract , and then drive the two locking gear rods 19 to move upward until they contact and jam the control gear 23, thereby locking the control shaft 14 and the speed measuring hub 15, so that the control shaft 14 cannot continue to rotate, thereby cooperating with the drive of the combined electric push rod 12, and using the control shaft 14 to press the steel strand 6, so that the steel strand 6 cannot continue to move, cooperating with the stopping of the winding motor 5 and the locking of the through-type hydraulic press 7, the rope length adjustment action is completely stopped, completing the braking action, and avoiding the steel strand 6 from continuing to move and causing an accident.

[0038] like Figure 8 As shown, an outer grinding roller 24 is sleeved on the speed measuring hub 15. In the present embodiment, the outer grinding roller 24 can be made of carbon fiber friction material. Specifically, by providing the outer grinding roller 24, the outer grinding roller 24 can replace the speed measuring hub 15 to directly contact the steel strand 6, thereby increasing the friction force on the steel strand 6 and avoiding wear of the speed measuring hub 15 itself.

[0039] like Figure 7 As shown, an auxiliary latch tooth 22 is provided at the bottom of the merging slide 10, and the auxiliary latch tooth 22 is adapted to another control gear 23. A control frame 21 is fixedly installed on the telescopic end of the merging electric push rod 12, and the auxiliary latch tooth 22 is fixedly installed on one end of the control frame 21; specifically, by providing the auxiliary latch tooth 22, after the locking gear rod 19 locks the control gear 23 on one side, the merging electric push rod 12 can drive the merging slide 10 to continue to slide a certain distance, so that the steel strand 6 is completely compressed, and at the same time, the auxiliary latch tooth 22 is driven by the control frame 21 to lock the control gear 23 on the other side, so that both ends of the control shaft 14 are locked, thereby improving the stability of the locking of the speed measuring wheel hub 15.

[0040] like Figure 8 As shown, the outer grinding roller 24 is a double half-shell structure, and both the outer grinding roller 24 and the speed measuring hub 15 are provided with assembly holes 2401, and the interior of the assembly holes 2401 is screwed with assembly bolts 25; specifically, by providing the assembly bolts 25, after the outer grinding roller 24 is used for a long time or is severely worn, the assembly bolts 25 can be screwed out, and the two half shells of the outer grinding roller 24 can be removed from the speed measuring hub 15 and replaced, thereby ensuring stable braking action.

[0041] like Figure 8 As shown, a spring rod 20 is fixedly installed at the bottom of the combined slide plate 10, and the spring rod 20 is located between the locking gear rod 19 and the auxiliary latch tooth 22. The spring rod 20 is fixedly installed on the telescopic end of the combined electric push rod 12; specifically, by setting the spring rod 20, the combined electric push rod 12 drives the speed measuring wheel hub 15 to press the steel strand 6, and at the same time drives the spring rod 20 to compress, so that the speed measuring wheel hub 15 has a large pre-tightening force when pressing the steel strand 6. At the same time, the spring rod 20 provides a movement margin for the continued movement of the auxiliary latch tooth 22, so that after the steel strand 6 is pressed, the spring rod 20 can continue to be compressed for a certain distance, so that the auxiliary latch tooth 22 is stuck to the control gear 23.

[0042] like Figure 3 , Figure 5As shown, a plurality of evenly distributed anti-friction balls 26 are rotatably mounted on the inner walls of the upper through hole 101 and the lower through hole 102; specifically, by arranging the anti-friction balls 26, the evenly distributed anti-friction balls 26 on the inner sides of the upper through hole 101 and the lower through hole 102 can reduce the wear of the steel strand 6 and the sides of the upper through hole 101 and the lower through hole 102, thereby reducing the vibration generated when adjusting the rope length.

[0043] In summary, the hoisting wire rope length adjustment device is provided with a winding frame 4, so that there are four hanging points at the bottom end of the main hoisting rope 1, and the combined length of the sub-hoisting rope 2, the adjusting tool 3 and the steel strand 6 together constitutes the length of the hanging rope at a single point. When the hanging rope length at the four points needs to be adjusted, the through-type hydraulic press 7 can relax the clamping of the steel strand 6, and then the winding motor 5 drives the winding frame 4 to unwind or rewind the steel strand 6, so that the length of the steel strand 6 changes, and then the combined length of the sub-hoisting rope 2, the adjusting tool 3 and the steel strand 6 is changed, so as to adjust the length of the hanging rope. Finally, the winding motor 5 stops, and the through-type hydraulic press 7 tightens the steel strand 6 to fix the steel strand 6, thereby completing the adjustment of the rope length. The through-type hydraulic press 7 adjusts the length of the steel strand to adjust the overall rope length, so that the change in rope length has a very large upper limit. The through-type hydraulic press 7 is used to lock the steel strand 6, which improves the adjustment efficiency and accuracy of the rope length. The adjustment rate and step size of each through-type hydraulic press 7 can be determined in advance according to calculation, so that each through-type hydraulic press 7 can be adjusted synchronously, with high overall coordination, which greatly avoids the situation where the forces of each sub-hoisting rope 2 and the steel strand 6 are uneven. Moreover, the winding motor 5 and the through-type hydraulic press 7 of each group are controlled and driven separately, and can also be adjusted synchronously. They can be manually controlled or automatically adjusted by the system, with high flexibility. The change in rope length and the force conditions of each sub-hoisting rope 2 and the steel strand 6 can be remotely monitored in real time through the computer control terminal, which greatly improves The safety of the hanging equipment operation is ensured by setting a speed measuring component, so that when the winding motor 5 drives the steel strand 6 to adjust the rope length, the merging electric push rods 12 on both sides will respectively drive the merging slide plate 10 to slide along the merging guide rail 9 toward the steel strand 6, thereby driving the speed measuring hubs 15 on both sides to press against the steel strand 6 through the rotating wheel frame 13 and the control shaft 14, so that the movement of the steel strand 6 can drive the speed measuring hubs 15 on both sides to rotate together, and at this time, the speed sensor 16 can sense and monitor the speed of the two speed measuring hubs 15. When the speed of the speed measuring hub 15 abnormally accelerates or slows down, it means that the adjustment speed of the steel strand 6 is abnormal. At this time, the speed sensor 16 will send an alarm signal to the system, and the control system will immediately stop the rope length adjustment action and perform Self-checking can reduce the occurrence of accidents. By setting the locking gear rod 19, when the rope length adjustment action of the steel strand 6 is abnormal, the locking electric push rods 17 on both sides will actively shrink, thereby driving the two locking gear rods 19 to move upward until they contact the control gear 23 and jam the control gear 23, thereby locking the control shaft 14 and the speed measuring wheel hub 15, so that the control shaft 14 cannot continue to rotate, thereby cooperating with the drive of the combined electric push rod 12, using the control shaft 14 to press the steel strand 6, so that the steel strand 6 cannot continue to move, cooperating with the stop of the winding motor 5 and the locking of the through-type hydraulic press 7, the rope length adjustment action is completely stopped, the braking action is completed, and the steel strand 6 is prevented from continuing to move and causing accidents. By setting the outer grinding roller 24,The outer grinding roller 24 can replace the speed measuring wheel hub 15 to directly contact the steel strand 6, thereby increasing the friction force on the steel strand 6 and avoiding wear of the speed measuring wheel hub 15 itself. By setting the assembly bolts 25, after the outer grinding roller 24 has been used for a long time or has been seriously worn, the assembly bolts 25 can be screwed out, and the two half shells of the outer grinding rollers 24 can be removed from the speed measuring wheel hub 15 and replaced to ensure stable braking action. By setting the auxiliary latch teeth 22, after the locking gear rod 19 locks the control gear 23 on one side, the combined electric push rod 12 can drive the combined slide plate 10 to continue sliding for a certain distance, so that the steel strand 6 is completely compressed, and at the same time, the auxiliary latch teeth 22 are driven by the control frame 21 to clamp the control gear 23 on the other side, so that the control gear 23 is locked. Both ends of the shaft 14 are locked, thereby improving the stability of the locking of the speed measuring wheel hub 15. By setting the spring rod 20, the electric push rod 12 is combined to drive the speed measuring wheel hub 15 to press the steel strand 6, and at the same time drive the spring rod 20 to compress, so that the speed measuring wheel hub 15 has a large pre-tightening force when pressing the steel strand 6. At the same time, the spring rod 20 provides a movement margin for the continued movement of the auxiliary clamping teeth 22, so that after the steel strand 6 is compressed, the spring rod 20 can continue to be compressed for a certain distance, so that the auxiliary clamping teeth 22 are stuck to the control gear 23. By setting the anti-friction balls 26, the anti-friction balls 26 evenly distributed on the inner sides of the upper through hole 101 and the lower through hole 102 can reduce the wear of the steel strand 6 and the sides of the upper through hole 101 and the lower through hole 102, and reduce the vibration generated when adjusting the rope length.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A hoisting wire rope length adjustment device, characterized in that: The invention comprises a main hoisting rope (1), wherein four evenly distributed sub-hoisting ropes (2) are fixedly mounted on the bottom end of the main hoisting rope (1), wherein the bottom ends of the sub-hoisting ropes (2) are fixedly mounted with adjusting tools (3), wherein a winding frame (4) is fixedly mounted inside the adjusting tools (3), wherein a winding motor (5) is fixedly mounted on one side of the winding frame (4), wherein the output end of the winding motor (5) is drivingly connected to the winding frame (4), wherein a steel strand (6) is wound inside the winding frame (4), wherein a through-type hydraulic press (7) is fixedly mounted inside the adjusting tools (3), wherein the through-type hydraulic press (7) is located at the bottom of the winding frame (4), and wherein the adjusting tools (3) are fixedly mounted on the bottom end of the winding frame (4). ) is provided with an upper through hole (101) and a lower through hole (102) inside, the upper through hole (101) being located between the winding frame (4) and the through-type hydraulic press (7), and the lower through hole (102) being located at the bottom of the through-type hydraulic press (7); the bottom end of the steel strand (6) passes through the upper through hole (101), the through-type hydraulic press (7) and the lower through hole (102) in sequence and is fixedly mounted with a hook (8); two speed measuring assemblies are provided at the bottom of the adjusting fixture (3), the two speed measuring assemblies being symmetrically distributed on both sides of the steel strand (6), and the speed measuring assemblies being used to measure the adjustment speed of the rope length of the steel strand (6) and to provide an early warning; The speed measuring assembly comprises a merging guide rail (9) fixedly mounted on the bottom of the adjusting tool (3), a merging slide plate (10) being slidably mounted on the merging guide rail (9), a side mounting plate (11) being fixedly mounted on one end of the merging guide rail (9), a merging electric push rod (12) being fixedly mounted on the side wall of the side mounting plate (11), a telescopic end of the merging electric push rod (12) facing the steel strand (6) and arranged at the bottom of the merging slide plate (10), a rotating wheel frame (13) being fixedly mounted on both sides of the merging slide plate (10), a same control shaft (14) being rotatably mounted between the two rotating wheel frames (13), a fixed sleeve being provided on the control shaft (14) A speed measuring hub (15) is provided, a speed sensor (16) is fixedly mounted on one side of the rotating wheel frame (13), a sensing end of the speed sensor (16) is fixedly mounted on one end of the control rotating shaft (14), a locking electric push rod (17) and a hanging telescopic rod (18) are fixedly mounted on the bottom of the merging slide plate (10), a locking gear rod (19) is fixedly mounted on the bottom end of the hanging telescopic rod (18), both ends of the control rotating shaft (14) are fixedly sleeved with control gears (23), the locking gear rod (19) is matched with one of the control gears (23), and the locking gear rod (19) is fixedly connected to the telescopic end of the locking electric push rod (17).

2. A hoisting wire rope length adjustment device according to claim 1, characterized in that: An outer grinding roller (24) is sleeved on the speed measuring wheel hub (15).

3. The hoisting wire rope length adjustment device according to claim 1, characterized in that: An auxiliary latching tooth (22) is provided at the bottom of the combined slide plate (10), and the auxiliary latching tooth (22) is matched with another control gear (23). A control frame (21) is fixedly mounted on the telescopic end of the combined electric push rod (12), and the auxiliary latching tooth (22) is fixedly mounted on one end of the control frame (21).

4. A hoisting wire rope length adjustment device according to claim 2, characterized in that: The outer grinding roller (24) is of a double half-shell structure. Both the outer grinding roller (24) and the speed measuring wheel hub (15) are provided with assembly holes (2401), and assembly bolts (25) are screwed inside the assembly holes (2401).

5. The hoisting wire rope length adjustment device according to claim 3, characterized in that: A spring rod (20) is fixedly mounted on the bottom of the merging slide plate (10); the spring rod (20) is located between the locking gear rod (19) and the auxiliary latching tooth (22); and the spring rod (20) is fixedly mounted on the telescopic end of the merging electric push rod (12).

6. The hoisting wire rope length adjustment device according to claim 1, characterized in that: A plurality of evenly distributed friction-reducing balls (26) are rotatably mounted on the inner walls of the upper through hole (101) and the lower through hole (102).

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