Hoisting mechanism of movable hoist

Abstract

A hoisting mechanism of a movable hoist comprises a winch, a winch support and a rope, the winch is arranged on the winch support, a swing mechanism is arranged below the winch support and arranged on a straight moving mechanism, and the hoisting mechanism further comprises a fixed pulley assembly and a movable pulley assembly. A traditional arrangement mode of a fixed pulley and a balance pulley in the prior art is broken through, so that enough space is reserved on the rotary support, and a space for arranging a rotary driving mechanism, a hydraulic mechanism and a pipeline winding drum is reserved. And the first fixed pulley shaft adopts a split design, so that when a fault occurs, only the sub-shaft needs to be replaced, the maintenance cost is reduced, and the maintenance time is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting equipment, and in particular relates to an improvement on a lifting mechanism of a mobile gate hoist. Background Art

[0002] When inspecting the lock channel, the inspection gate needs to be lifted. However, considering the passage of ships, there will be safety hazards if the gate is suspended above the channel. Therefore, it needs to be lifted, moved horizontally, rotated 90 degrees, and finally dropped to the ground.

[0003] See also Figure 10-12 According to the old design, the upper fixed pulley group a + balance wheel group b and the lower suspended movable pulley group c are used. The fixed pulley a and the balance wheel b are perpendicular to each other, which occupies a large space. Specifically, in terms of application, it will increase the overall "width". In this way, it is difficult to lay out pipeline drums, slewing mechanisms, etc. in the ship locks used in this case.

[0004] In actual use, there is another problem. The waterway environment of the ship lock is complex, and the underwater situation is difficult to observe. Jams often occur, resulting in excessive load when lifting the gate. If this situation is not mastered, it is easy to cause damage to the lifting mechanism. Therefore, a load shaft is set on the fixed pulley in this field, which can timely collect the changes in the load during the work process. The traditional load shaft is set on the balance wheel b. Since the load shaft is a wearing part, it often needs to be replaced. The balance wheel and the original pulley are set on the same axis and share a rotating shaft. According to the concept of ordinary technicians, it can only be processed as a load shaft on this rotating shaft. This will result in an overall replacement once a failure occurs. The load shaft that runs through multiple wheels is a customized part, and the cost of maintenance and replacement is high.

[0005] Therefore, it is urgent to design a lifting mechanism of a mobile gate hoist with a new structure. Summary of the invention

[0006] In view of the above technical problems, the present invention provides a lifting mechanism of a mobile gate hoist to solve the problems of insufficient space on the rotary structure and high maintenance cost of the rotating shaft in the prior art.

[0007] The technical solution of the present invention is: a lifting mechanism of a mobile hoist, comprising a winch, a winch bracket and a rope, wherein the winch is arranged on the winch bracket, a slewing mechanism is arranged below the winch bracket, the slewing mechanism is arranged on the straight-moving mechanism, and further comprises a fixed pulley assembly and a movable pulley assembly. The fixed pulley assembly includes a first fixed pulley group and a second fixed pulley group, the first fixed pulley group includes a first fixed pulley shaft and a plurality of first fixed pulleys, both ends of the first fixed pulley shaft are arranged on the winch bracket, and the first fixed pulley is arranged on the first fixed pulley shaft; The second fixed pulley assembly includes a second fixed pulley shaft and a plurality of second fixed pulleys, the two ends of the second fixed pulley shaft are arranged on the winch bracket, the second fixed pulleys are arranged on the second fixed pulley shaft, and the number of the second fixed pulleys is one less than the number of the first fixed pulleys; The movable pulley assembly is arranged below the fixed pulley assembly, and the movable pulley assembly comprises a bracket, a first movable pulley group and a second movable pulley group; The first movable pulley group includes a first movable pulley shaft and a plurality of first movable pulleys, wherein both ends of the first movable pulley shaft are arranged on a bracket, and the first movable pulleys are arranged on the first movable pulley shaft; The second movable pulley group includes a second pulley shaft and a plurality of second movable pulleys, the first movable pulley shaft and the second movable pulley shaft are parallel and on the same horizontal plane, both ends of the second movable pulley shaft are arranged on the bracket, the second movable pulley is arranged on the second movable pulley shaft, and the number of the second movable pulleys is the same as that of the first movable pulleys; One end of the rope is fixed to the drum of the winch, and the other end goes around the first movable pulley at the bottom, then goes around the first fixed pulley at the top, then goes around another first movable pulley at the bottom, and so on, turns to the second movable pulley at the last first fixed pulley, then goes around the second fixed pulley at the top, and so on, and finally is fixed to the drum upwards through the last second movable pulley. A weighing sensor is arranged on one of the first fixed pulleys.

[0008] Preferably, a balancing guide wheel is provided on the second fixed pulley shaft, one end of the rope is fixed to the drum of the winch, and the other end is passed downward around the first movable pulley below, then passed upward around the first fixed pulley above, and then passed downward around another first movable pulley, and so on and so forth, after turning to the balancing guide wheel at the last first fixed pulley, it then turns downward to the second movable pulley, then passed upward around the second fixed pulley above, and so on and so forth, and finally is fixed upward to the drum via the last second movable pulley.

[0009] Preferably, the first fixed pulley shaft comprises a main shaft and a sub-shaft, the sub-shaft is detachably arranged on the main shaft, and the first fixed pulley provided with the weighing sensor is arranged on the sub-shaft.

[0010] Preferably, the sub-shaft is detachably connected to the main shaft via a threaded connection.

[0011] Preferably, the slewing mechanism includes a slewing support and a slewing drive, and the winch bracket is arranged on the slewing support.

[0012] Preferably, the fixed pulley assembly includes two second fixed pulleys and three first fixed pulleys.

[0013] The beneficial effects of the present invention are: breaking the traditional setting mode of the fixed pulley and the balance pulley in the prior art, so that there is enough space on the slewing support to lay out the slewing drive mechanism, the hydraulic mechanism and the pipeline reel. The first fixed pulley shaft adopts a split design, and when a failure occurs, only the sub-shaft needs to be replaced, which reduces the maintenance cost and shortens the maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall application structure of the present invention, Figure 2 is a side view of the present invention, Figure 3 is a side view of the present invention in another direction, Figure 4 is a schematic diagram of rope winding in Example 1 of the present invention, Figure 5 is a schematic diagram of rope winding in Example 2 of the present invention, Figure 6 This is a schematic diagram showing the force of the first fixed pulley provided with a weighing sensor in the present invention. Figure 7 is a schematic diagram of the structure of the fixed pulley block in Example 3, Figure 8 yes Figure 7 Schematic diagram of AA, Fig. 9 yes Figure 6 Schematic diagram of BB, Fig.10 It is a structural diagram of the prior art. Fig.11 It is a top view of the prior art. Fig.12 is a side view of the prior art, In the figure, 1 is a winch, 11 is a drum, 2 is a winch bracket, 3 is a slewing mechanism, 4 is a straight-moving mechanism, 5 is a fixed pulley assembly, 51 is a first fixed pulley block, 511 is a first fixed pulley shaft, 5111 is a main shaft, 5112 is a sub-shaft, 512 is a first fixed pulley, 52 is a second fixed pulley block, 521 is a second fixed pulley shaft, 522 is a second fixed pulley, 523 is a balancing guide wheel, 6 is a movable pulley assembly, 61 is a bracket, 62 is a first movable pulley block, 621 is a first movable pulley shaft, 622 is a first movable pulley, 63 is a second movable pulley block, 631 is a second pulley shaft, 632 is a second movable pulley, 7 is a rope, and 8 is a gate.

[0015] a is the fixed pulley group, b is the balance pulley group, c is the movable pulley group, Figure 6 The arrow in the middle indicates the direction of force applied on the rope. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0017] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "vertical", "cross", "inside", "outside", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0018] Example 1 Figures 1 to 4 The hoisting mechanism of a mobile gate hoist is shown in the figure, including a winch 1, a winch bracket 2 and a rope 3. The winch 1 is arranged on the winch bracket 2, and a slewing mechanism 3 is arranged below the winch bracket 2. The slewing mechanism 3 includes a slewing support and a slewing drive. The winch bracket 2 is arranged on the slewing support, and the slewing mechanism 3 is arranged on a straight travel mechanism 4. The above are all prior arts and will not be described in detail. The fixed pulley assembly 5 and the movable pulley assembly 6 are also included. The fixed pulley assembly 5 includes a first fixed pulley group 51 and a second fixed pulley group 52. The first fixed pulley group 51 includes a first fixed pulley shaft 511 and a plurality of first fixed pulleys 512. Both ends of the first fixed pulley shaft 511 are arranged on the winch bracket 2. The first fixed pulleys 512 are arranged on the first fixed pulley shaft 511. The second fixed pulley assembly 52 includes a second fixed pulley shaft 521 and a plurality of second fixed pulleys 522. Both ends of the second fixed pulley shaft 521 are arranged on the winch bracket 2. The second fixed pulleys 522 are arranged on the second fixed pulley shaft 521. The number of the second fixed pulleys 522 is one less than the number of the first fixed pulleys 521. In this embodiment, the number of the second fixed pulleys 522 is 2, and the number of the first fixed pulleys 512 is 3. The movable pulley assembly 6 is arranged below the fixed pulley assembly 5, and the movable pulley assembly 6 includes a bracket 61, a first movable pulley group 62 and a second movable pulley group 63; The first movable pulley group 62 includes a first movable pulley shaft 621 and a plurality of first movable pulleys 622. Both ends of the first movable pulley shaft 621 are arranged on the bracket 61. The first movable pulleys 622 are arranged on the first movable pulley shaft 621. The second movable pulley group 63 includes a second pulley shaft 631 and a second movable pulley 632. The first movable pulley shaft 621 and the second movable pulley shaft 632 are parallel and on the same horizontal plane. Both ends of the second movable pulley shaft 632 are arranged on the bracket 61. The second movable pulley 622 is arranged on the second movable pulley shaft 621. The number of the second movable pulley 622 and the first movable pulley 612 is the same. One end of the rope 7 is fixed to the drum 11 of the winch 1, and the other end is passed around the first movable pulley 612 at the bottom, then passed around the first fixed pulley 512 at the top, and then passed around another first movable pulley 612 at the bottom, and so on, and at the last first fixed pulley 512, it turns to the second movable pulley 622, and then passes around the second fixed pulley 522 at the top, and so on, and finally is fixed to the drum 11 upward through the last second movable pulley 622.

[0019] A weighing sensor is provided on one of the first fixed pulleys 512. The weighing sensor is used to measure the load of the rope. It is an existing mature component, and the specific installation method and working principle are not described in detail.

[0020] See also Figure 1 By adopting the structure in this embodiment, two movable pulley groups are arranged in parallel without a balance wheel design. When the gate 8 is suspended, the structural "width" of the upper part of the slewing support is reduced, breaking the traditional setting mode of the fixed pulley and the balance pulley in the prior art, so that there is enough space on the slewing mechanism 3 to lay out the slewing drive mechanism, the hydraulic mechanism and the pipeline reel.

[0021] Example 2 See also Figure 5 and 6 The difference between this embodiment and embodiment 1 is that a balancing guide wheel 523 is provided on the second fixed pulley shaft 521, one end of the rope 7 is fixed to the drum 11 of the winch 1, and the other end is passed around the first movable pulley 612 below downward, then passed around the first fixed pulley 512 above upward, and then passed around another first movable pulley 612 downward, and so on and so forth. After turning to the balancing guide wheel 523 at the last first fixed pulley 512, it turns to the second movable pulley 622, then passes around the second fixed pulley 522 above upward, and so on and so forth, and finally is fixed to the drum 11 upward through the last second movable pulley 622.

[0022] See also Figure 6 By adopting the structure in this embodiment, the rope and the first fixed pulley 512 provided with the weighing sensor can always maintain a 90-degree angle, without considering the calculation changes caused by the angle change. The calculation process is simpler and the calculation result is more accurate.

[0023] Example 3 See also Figures 7 to 9The difference between this embodiment and embodiment 3 is that the first fixed pulley shaft 511 includes a main shaft 5111 and a sub-shaft 5112, the sub-shaft 5112 is detachably arranged on the main shaft 5111, and the first fixed pulley 521 with a weighing sensor is arranged on the sub-shaft.

[0024] In this embodiment, the sub-shaft 5112 is detachably provided on the main shaft 5111 via a threaded connection.

[0025] By adopting the structure of this embodiment, once the weighing sensor fails, it is not necessary to replace the first fixed pulley shaft 511 as a whole, but only the sub-shaft 5112 needs to be replaced, thereby reducing the maintenance cost and shortening the maintenance time.

[0026] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A lifting mechanism of a mobile hoist, comprising a winch, a winch bracket and a rope, wherein the winch is arranged on the winch bracket, a slewing mechanism is arranged below the winch bracket, and the slewing mechanism is arranged on a straight-moving mechanism, wherein: It also includes a fixed pulley assembly and a movable pulley assembly, The fixed pulley assembly includes a first fixed pulley group and a second fixed pulley group, the first fixed pulley group includes a first fixed pulley shaft and a plurality of first fixed pulleys, both ends of the first fixed pulley shaft are arranged on the winch bracket, and the first fixed pulley is arranged on the first fixed pulley shaft; The second fixed pulley assembly includes a second fixed pulley shaft and a plurality of second fixed pulleys, the two ends of the second fixed pulley shaft are arranged on the winch bracket, the second fixed pulleys are arranged on the second fixed pulley shaft, and the number of the second fixed pulleys is one less than the number of the first fixed pulleys; The movable pulley assembly is arranged below the fixed pulley assembly, and the movable pulley assembly comprises a bracket, a first movable pulley group and a second movable pulley group; The first movable pulley group includes a first movable pulley shaft and a plurality of first movable pulleys, wherein both ends of the first movable pulley shaft are arranged on a bracket, and the first movable pulleys are arranged on the first movable pulley shaft; The second movable pulley group includes a second pulley shaft and a plurality of second movable pulleys, the first movable pulley shaft and the second movable pulley shaft are parallel and on the same horizontal plane, both ends of the second movable pulley shaft are arranged on the bracket, the second movable pulley is arranged on the second movable pulley shaft, and the number of the second movable pulleys is the same as that of the first movable pulleys; One end of the rope is fixed to the drum of the winch, and the other end goes around the first movable pulley at the bottom, then goes around the first fixed pulley at the top, then goes around another first movable pulley at the bottom, and so on, turns to the second movable pulley at the last first fixed pulley, then goes around the second fixed pulley at the top, and so on, and finally is fixed to the drum upwards through the last second movable pulley. A weighing sensor is arranged on one of the first fixed pulleys.

2. The lifting mechanism of a mobile gate hoist according to claim 1 is characterized in that: A balancing guide wheel is provided on the second fixed pulley shaft, one end of the rope is fixed to the drum of the winch, and the other end of the rope is passed downward around the first movable pulley below, then passed upward around the first fixed pulley above, and then passed downward around another first movable pulley, and so on and so forth. After turning to the balancing guide wheel at the last first fixed pulley, it turns downward to the second movable pulley, then passes upward around the second fixed pulley above, and so on and so forth, and finally is fixed upward to the drum via the last second movable pulley.

3. A lifting mechanism of a mobile gate hoist according to claim 1 or 2, characterized in that: The first fixed pulley shaft comprises a main shaft and a sub-shaft, the sub-shaft is detachably arranged on the main shaft, and the first fixed pulley provided with a weighing sensor is arranged on the sub-shaft.

4. The lifting mechanism of a mobile gate hoist according to claim 1 is characterized in that: The sub-shaft is detachably arranged on the main shaft through threaded connection.

5. The lifting mechanism of a mobile gate hoist according to claim 1 is characterized in that: The slewing mechanism comprises a slewing support and a slewing drive, and the hoist bracket is arranged on the slewing support.

6. A lifting mechanism of a mobile gate hoist according to claim 1 or 2, characterized in that: The fixed pulley assembly includes two second fixed pulleys and three first fixed pulleys.

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