Lifting device for cable crane

Abstract

The utility model belongs to the field of hoisting equipment, and particularly provides a lifting device for a cable crane, which comprises at least one group of moving trolleys arranged on a cable crane rack, a guide rail is arranged on the upper side of the cable crane rack and is perpendicular to a cable of the cable crane, and second traveling wheels which are matched with the guide rail and are driven by a motor are arranged at the bottom of a trolley body of each moving trolley. A winch is arranged on the moving trolley, a lifting rope of the winch is connected with the main lifting hook mechanism, and an object lifting hole for the main lifting hook mechanism to penetrate through is formed in the cable crane rack. The lifting position can be adjusted in the direction perpendicular to the cable, and the operation range of the cable crane is widened.

Description

Technical Field

[0001] The utility model relates to the field of lifting equipment, in particular to a lifting device for cable lifting equipment. Background Art

[0002] Cable cranes are widely used and play a vital role in hydropower and water conservancy projects. They are often used for lifting small loads over large spans and heights, such as bridge construction and installing equipment on top of television towers. They offer high lifting heights, large spans, and a wide operating range. Under specific conditions, they can perform functions that other cranes cannot.

[0003] However, the lifting mechanism of the cable crane can only move along the cable. When it stops at a fixed position on the cable, the lifting position is also fixed, which is not conducive to adjusting the lifting position. At the same time, it can only operate at a single lifting point, and the operating coverage is small. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a lifting device for a cable crane, which can adjust the lifting position in the direction perpendicular to the cable rope and improve the operating range of the cable crane.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a lifting device for a cable crane, comprising at least one group of mobile trolleys arranged on a cable crane frame, a guide rail is provided on the upper side of the cable crane frame, the guide rail is arranged perpendicular to the cable of the cable crane, a second traveling wheel driven by a motor and cooperating with the guide rail is provided at the bottom of the body of the mobile trolley, a winch is provided on the mobile trolley, the lifting rope of the winch is connected to the main hook mechanism, and a hanging hole for the main hook mechanism to pass through is provided on the cable crane frame.

[0006] In the preferred solution, a lifting arm is provided at the end of the mobile trolley, an arm wheel that cooperates with the guide rail is provided at the bottom of the lifting arm, a second supporting wheel is provided on the upper side of the lifting arm, and a plurality of rollers are provided on the lower side. An end hook mechanism is provided at the end of the lifting arm, and the end hook mechanism includes an end wheel arranged at the end of the lifting arm, a first movable pulley is provided below the end wheel, and a side hook is provided on the wheel frame of the first movable pulley. The main hook mechanism includes a steering wheel arranged at the bottom of the mobile trolley, a second movable pulley is provided below the steering wheel, and a main hook is provided on the wheel frame of the second movable pulley. The lifting rope of the winch passes through the upper side of the second supporting wheel, passes around the end wheel and the first movable pulley in turn, and then passes around the roller and the upper side of the steering wheel in turn, and finally passes around the second movable pulley and is fixed to the bottom of the mobile trolley.

[0007] In the preferred solution, a first upper electromagnet is provided on the wheel frame of the end wheel, a first lower electromagnet is provided on the wheel frame of the first movable pulley corresponding to the first upper electromagnet, a second upper electromagnet is provided on the wheel frame of the steering wheel, and a second lower electromagnet is provided on the wheel frame of the second movable pulley corresponding to the second upper electromagnet.

[0008] In a preferred embodiment, a first magnet frame is provided on the wheel frame of the end wheel, a first upper electromagnet is arranged on the first magnet frame, a second magnet frame for installing a first lower electromagnet is provided on the wheel frame of the first movable pulley, a third magnet frame for installing a second upper electromagnet is provided on the wheel frame of the steering wheel, and a fourth magnet frame for installing a second lower electromagnet is provided on the wheel frame of the second movable pulley.

[0009] In a preferred solution, the end of the guide rail is provided with a limit protrusion and an electronic limit switch.

[0010] The utility model provides a lifting device for a cable crane, which has the following beneficial effects:

[0011] 1. During the lifting process, the lifting device can not only move back and forth on the cable with the cable crane frame, but also move along the guide rail through the mobile trolley to drive the main hook mechanism to adjust the lifting position, thereby improving the lifting operation coverage.

[0012] 2. It can be hoisted with the main hook or with the side hook for telescopic hoisting, which is more flexible to use.

[0013] 3. During the hoisting process, the cable crane frame moves back and forth on the cable, and the mobile trolley moves left and right with the lifting arm, which can achieve a full range of hoisting operations that is larger than the coverage of a pair of cables, and achieves a good operating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a top view of the installation of the utility model;

[0017] In the figure: mobile trolley 100, second traveling wheel 110, winch 200, main hook mechanism 300, steering wheel 310, second movable pulley 320, main hook 330, third magnet frame 340, second upper electromagnet 350, second lower electromagnet 360, fourth magnet frame 370, lifting arm 400, arm wheel 500, second supporting roller 600, end hook mechanism 700, end wheel 710, first movable pulley 720, side hook 730, first magnet frame 740, first upper electromagnet 750, first lower electromagnet 760, second magnet frame 770, roller 800, cable crane frame 900, guide rail 910, hanging hole 920, limit protrusion 930, electronic limit switch 940, cable 1000. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0019] like Figures 1 and 2 As shown, a lifting device for a cable crane includes at least one group of moving trolleys 100 arranged on a cable crane frame 900. In this embodiment, two groups of moving trolleys 100 are provided, which are symmetrically arranged at the left and right ends.

[0020] A guide rail 910 is provided on the upper side of the machine frame 900, and the guide rail 910 is arranged perpendicular to the cable 1000 of the cable crane. The guide rail 910 is symmetrically arranged along the hanging hole 920. The bottom of the body of the mobile trolley 100 is provided with a second walking wheel 110 driven by a motor that cooperates with the guide rail 910. The mobile trolley 100 is provided with a winch 200, and the lifting rope of the winch 200 is connected to the main hook mechanism 300. The cable crane frame 900 is provided with a hanging hole 920 for the main hook mechanism 300 to pass through. The hanging hole 920 is a strip hole parallel to the guide rail 910.

[0021] During the lifting process, the lifting device can not only move back and forth on the cable with the cable crane frame, but also move along the guide rail 910 through the mobile trolley 100 to drive the main hook mechanism 300 to adjust the lifting position, thereby improving the lifting operation coverage.

[0022] Preferably, a lifting arm 400 is provided at the end of the mobile trolley 100, and an arm wheel 500 cooperating with the guide rail 910 is provided at the bottom of the lifting arm 400. The lifting arm 400 can move synchronously with the mobile trolley 100 to meet the needs of expanding the working area outside the track.

[0023] A second supporting wheel 600 is provided on the upper side of the lifting arm 400, and a plurality of rollers 800 are provided on the lower side. An end hook mechanism 700 is provided at the end of the lifting arm 400, and the end hook mechanism 700 includes an end wheel 710 arranged at the end of the lifting arm 400, and a first movable pulley 720 is provided below the end wheel 710, and a side hook 730 is provided on the wheel frame of the first movable pulley 720. The main hook mechanism 300 includes a steering wheel 310 arranged at the bottom of the mobile trolley 100, and a second movable pulley 320 is provided below the steering wheel 310, and a main hook 330 is provided on the wheel frame of the second movable pulley 320. The lifting rope of the winch 200 passes through the upper side of the second supporting wheel 600, passes around the end wheel 710 and the first movable pulley 720 in turn, then passes around the roller 800 and the upper side of the steering wheel 310 in turn, and finally passes around the second movable pulley 320 and is fixed to the bottom of the mobile trolley 100.

[0024] The wheel frame of the end wheel 710 is provided with a first upper electromagnet 750, and the wheel frame of the first movable pulley 720 is provided with a first lower electromagnet 760 corresponding to the first upper electromagnet 750. The wheel frame of the steering wheel 310 is provided with a second upper electromagnet 350, and the wheel frame of the second movable pulley 320 is provided with a second lower electromagnet 360 corresponding to the second upper electromagnet 350.

[0025] Specifically, the wheel frame of the end wheel 710 is provided with a first magnet frame 740, and the first upper electromagnet 750 is arranged at the bottom of the first magnet frame 740. The wheel frame of the first movable pulley 720 is provided with a second magnet frame 770 for mounting the first lower electromagnet 760, and the first lower electromagnet 760 is mounted at the top of the second magnet frame 770 and corresponds to the first upper electromagnet 750. The wheel frame of the steering wheel 310 is provided with a third magnet frame 340 for mounting the second upper electromagnet 350, and the second upper electromagnet 350 is mounted at the bottom of the third magnet frame 340. The wheel frame of the second movable pulley 320 is provided with a fourth magnet frame 370 for mounting the second lower electromagnet 360, and the second lower electromagnet 360 is mounted at the top of the fourth magnet frame 370 and corresponds to the second upper electromagnet 350.

[0026] The main hook mechanism 300 and the end hook mechanism 700 can work in time division mode. The winch 200 first retracts the lifting rope. In the initial state, the first upper electromagnet 750 and the first lower electromagnet 760 are powered to be adsorbed, and the second upper electromagnet 350 and the second lower electromagnet 360 are powered to be adsorbed. When the main hook mechanism 300 needs to be operated, the first upper electromagnet 750 and the first lower electromagnet 760 remain in the powered adsorption state, and the second upper electromagnet 350 and the second lower electromagnet 36 are powered off to be released from adsorption. The main hook 330 is controlled to move up and down by the winch 200 to perform lifting operation. When the end hook mechanism 700 needs to be operated, the second upper electromagnet 350 and the second lower electromagnet 360 remain in the adsorption state, and the first upper electromagnet 750 and the first lower electromagnet 760 are powered off to be released from adsorption. The side hook 730 is controlled to move up and down by the winch 200 to perform lifting operation.

[0027] During the hoisting process, the cable machine frame 900 moves back and forth on the cable 1000, and the moving trolley 100 moves left and right with the lifting arm 400, so that the hoisting operation can be performed in a full range larger than the coverage range of a pair of cables 1000, and good operation effect is achieved.

[0028] Preferably, the end of the guide rail 910 is provided with a limiting protrusion 930 and an electronic limiting switch 940, so as to ensure the safety of the moving trolley 100 through multiple protections.

[0029] The above-described embodiments are merely preferred technical solutions of the present application and should not be regarded as limiting the present application, and the protection scope of the present application should be based on the technical solutions recited in the claims, including equivalent replacement solutions of the technical features recited in the claims as the protection scope. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the embodiments, and equivalent replacement improvements within this range are also within the protection scope of the present application.

Claims

1. A lifting device for a cable crane, characterized in that: The invention comprises at least one group of mobile trolleys (100) arranged on a cable crane frame (900), wherein a guide rail (910) is provided on the upper side of the cable crane frame (900), wherein the guide rail (910) is arranged perpendicular to the cable (1000) of the cable crane, and a second traveling wheel (110) driven by a motor and cooperating with the guide rail (910) is provided at the bottom of the body of the mobile trolley (100), wherein a winch (200) is provided on the mobile trolley (100), wherein a lifting rope of the winch (200) is connected to a main hook mechanism (300), and a lifting hole (920) for the main hook mechanism (300) to pass through is provided on the cable crane frame (900).

2. A lifting device for a cable crane according to claim 1, characterized in that: The end of the mobile trolley (100) is provided with a lifting arm (400), the bottom of the lifting arm (400) is provided with an arm wheel (500) that cooperates with the guide rail (910), the upper side of the lifting arm (400) is provided with a second supporting wheel (600), the lower side is provided with a plurality of supporting rollers (800), the end of the lifting arm (400) is provided with an end hook mechanism (700), the end hook mechanism (700) includes an end wheel (710) arranged at the end of the lifting arm (400), a first movable pulley (720) is provided below the end wheel (710), and a side hook (700) is provided on the wheel frame of the first movable pulley (720). 30), the main hook mechanism (300) includes a steering wheel (310) arranged at the bottom of the mobile trolley (100), a second movable pulley (320) is provided below the steering wheel (310), and a main hook (330) is provided on the wheel frame of the second movable pulley (320). The hoisting rope of the winch (200) passes through the upper side of the second supporting wheel (600), passes around the end wheel (710) and the first movable pulley (720) in sequence, then passes around the roller (800) and the upper side of the steering wheel (310) in sequence, and finally passes around the second movable pulley (320) and is fixed to the bottom of the mobile trolley (100).

3. A lifting device for a cable crane according to claim 2, characterized in that: The wheel frame of the end wheel (710) is provided with a first upper electromagnet (750), the wheel frame of the first movable pulley (720) is provided with a first lower electromagnet (760) corresponding to the first upper electromagnet (750), the wheel frame of the steering wheel (310) is provided with a second upper electromagnet (350), and the wheel frame of the second movable pulley (320) is provided with a second lower electromagnet (360) corresponding to the second upper electromagnet (350).

4. A lifting device for a cable crane according to claim 3, characterized in that: The wheel frame of the end wheel (710) is provided with a first magnet frame (740), the first upper electromagnet (750) is arranged on the first magnet frame (740), the wheel frame of the first movable pulley (720) is provided with a second magnet frame (770) on which the first lower electromagnet (760) is installed, the wheel frame of the steering wheel (310) is provided with a third magnet frame (340) on which the second upper electromagnet (350) is installed, and the wheel frame of the second movable pulley (320) is provided with a fourth magnet frame (370) on which the second lower electromagnet (360) is installed.

5. A lifting device for a cable crane according to claim 1, characterized in that: The end of the guide rail (910) is provided with a limit protrusion (930) and an electronic limit switch (940).

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