Tool for replacing crown block wheel

Abstract

The utility model relates to the field of crown block maintenance, and discloses a tool for replacing crown block wheels, which comprises a pull rod (1), a suspension rope (3) and a suspension ring (2) fixedly connected with the pull rod (1), and the suspension rope (3) penetrates through the suspension ring (2) and is used for suspending the pull rod (1); the parts between the two ends of the pull rod (1) and the hanging ring (2) are respectively provided with a short side and a long side, the length of the short side is not less than 500mm, and the length of the long side is greater than that of the short side. By means of the tool for replacing the crown block wheel, the wheel can be rapidly replaced in a labor-saving mode according to the lever principle.

Description

Technical Field

[0001] The utility model relates to the field of overhead crane maintenance, in particular to a tool for replacing overhead crane wheels. Background Art

[0002] Bridge crane is a common heavy lifting equipment, usually composed of a bridge, a trolley, a small car and a lifting mechanism. They move on a single-span or multi-span bridge with tracks on both sides, and are used for cargo handling and lifting operations in the industrial field.

[0003] The wheels of bridge cranes are usually installed on parallel tracks on both sides. Long-term use and high-frequency lifting and transportation work will cause the wheels to wear or deteriorate. In industrial production, when the wheels are worn or deteriorated to a certain extent, they need to be replaced with new wheels.

[0004] Due to the small location of the wheel, the wheel can only be removed from the offline line by manpower and hand winches, which is time-consuming and labor-intensive. Utility Model Content

[0005] In order to overcome the problem of time-consuming and labor-intensive wheel replacement in the prior art, the utility model provides a tool for replacing a crane wheel. The tool for replacing a crane wheel can replace the wheel quickly and labor-savingly by utilizing the lever principle.

[0006] In order to achieve the above-mentioned object, the utility model provides a tool for replacing the wheels of a crane, the tool for replacing the wheels of a crane comprising a pull rod, a suspension rope and a lifting ring fixedly connected to the pull rod, the suspension rope passes through the lifting ring to suspend the pull rod;

[0007] The parts between the two ends of the pull rod and the lifting ring are respectively set as a short side and a long side, the length of the short side is not less than 500 mm, and the length of the long side is greater than the short side.

[0008] Preferably, the length of the long side is not less than twice the length of the short side.

[0009] Preferably, the long sides are arranged as a splicing structure.

[0010] Preferably, the splicing structure is provided as two parts connected by threads.

[0011] Preferably, the suspension rope is configured as a flexible connecting material.

[0012] Preferably, the suspension rope is configured as a ring connected end to end.

[0013] Preferably, the lifting ring is detachably connected to the pulling rod.

[0014] Preferably, the lifting ring is threadedly connected to the pull rod.

[0015] According to the above technical solution, the suspension rope of the utility model is hung at a high place, and then the tool for replacing the wheel of the overhead crane becomes a lever with the hanging ring as the fulcrum, and the short side is extended into the wheel through the through hole on the wheel, and the operator presses down at one end of the long side to pry up the wheel, and then the operator can smoothly drag the wheel out of the traveling crane body and put it on the operating platform next to it. Therefore, the tool for replacing the wheel of the overhead crane can easily realize the removal of the wheel.

[0016] Specifically, before prying the wheel, the jack is used to raise the vehicle body to a certain height so that the wheel has enough space to be pried. Then, when the wheel is pried up and has left the track, the operator only needs to control the direction of movement of the wheel to easily drag the wheel to the operating platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a stereoscopic view of a tool for replacing a wheel of an overhead crane;

[0018] Figure 2 It is a diagram of the use status of a tool for replacing a wheel of an overhead crane;

[0019] Figure 3 A cross-section of a wheel.

[0020] Description of Reference Numerals

[0021] 1 pull rod 2 lifting rings

[0022] 30 tracks and 20 operating platforms

[0023] 10 wheels 40 driving body

[0024] 3 hanging rope 101 through the hole DETAILED DESCRIPTION

[0025] In the present invention, unless otherwise stated, directional words such as "upper, lower, side, both ends" generally refer to the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0026] See also Figure 1 The tool for replacing the wheels of the overhead crane comprises a pull rod 1, a suspension rope 3 and a lifting ring 2 fixedly connected to the pull rod 1, and the suspension rope 3 passes through the lifting ring 2 to suspend the pull rod 1;

[0027] The parts between the two ends of the pull rod 1 and the lifting ring 2 are respectively set as the short side and the long side. The length of the short side is not less than 500 mm, and the length of the long side is greater than the short side.

[0028] By implementing the above technical solution, the suspension rope 3 is hung at a high place, and the tool for replacing the wheel of the overhead crane becomes a lever with the suspension ring 2 as a fulcrum, and the short side is extended into the wheel 10 through the through hole 101 on the wheel 10, and the operator presses down at one end of the long side to pry up the wheel 10, and then the operator can smoothly drag the wheel 10 out of the traveling body 40 and put it on the operating platform next to it. Therefore, the tool for replacing the wheel of the overhead crane can easily realize the removal of the wheel 10.

[0029] Specifically, before prying the wheel 10, the jack is used to raise the vehicle body 40 to a certain height so that the wheel 10 has enough space to be pried. Then, when the wheel 10 is pried up and has left the track 30, the operator only needs to control the movement direction of the wheel 10 to easily drag the wheel 10 to the operating platform 20.

[0030] In this embodiment, preferably, the length of the long side is not less than twice the length of the short side.

[0031] In order to achieve a more labor-saving effect when prying the wheel 10, the ratio of the length of the long side to the short side should be as large as possible, but factors such as the time and space available on site and the safety of operation also need to be considered. Preferably, the length of the long side is not less than twice the length of the short side, so that the tool for replacing the overhead crane wheel can save at least half the effort.

[0032] In this embodiment, preferably, the long sides are configured as a splicing structure.

[0033] In actual production, if the weight of the wheel 10 is very large and the current long side cannot pry the wheel 10, in order to obtain a better labor-saving effect, a longer long side can be obtained by splicing.

[0034] One implementation method is to set the long side into two sections, the end of one section is set to a hole with a certain depth, and the end of the other section is set to an axis that matches the hole. By inserting the axis into the hole or pulling it out of the hole, the long side can be spliced ​​or disassembled.

[0035] Preferably, in order to prevent the two sections from rotating relative to each other during use, a limiting structure is preferably provided at the joint position. For example, a protrusion and a groove that can be reliably matched are provided on the two end faces of the joint, and the cooperation between the protrusion and the groove prevents the two sections from rotating relative to each other.

[0036] In this embodiment, preferably, the splicing structure is provided as two parts connected by threads.

[0037] The two sections that are spliced ​​to each other are respectively provided with threaded holes and threaded shafts, and the detachable connection of the spliced ​​structure is achieved through the cooperation of the threaded holes and the threaded shafts.

[0038] Preferably, in order to ensure the strength of the pull rod 1, the threaded shaft can be set to have the same diameter as the pull rod 1, and a nut that can reliably match the threaded shaft can be welded to the other section. When splicing is required, tightening the nut and the threaded shaft can not only achieve a reliable connection of the spliced ​​structure, but also effectively prevent the two sections from rotating relative to each other during use.

[0039] In this embodiment, preferably, the suspension rope 3 is configured as a flexible connecting material.

[0040] The suspension rope 3 is configured as a flexible connecting material so that the shape of the suspension rope 3 can be changed to adapt to different working environments, so that the suspension rope 3 has good adaptability and can find a reliable suspension point in different working environments.

[0041] Preferably, the suspension rope 3 can be configured as a flexible connecting material such as a rope or a chain.

[0042] In this embodiment, preferably, the suspension rope 3 is configured as a ring connected end to end.

[0043] In order to prevent the hanging rope 3 from being lost, the hanging rope 3 is arranged as a ring connected end to end, so that the hanging rope 3 is always hung on the hanging ring 2.

[0044] In this embodiment, preferably, the lifting ring 2 and the pull rod 1 are detachably connected.

[0045] The lifting ring 2 and the pull rod 1 are detachably connected, so when the lifting ring 2 or the pull rod 1 needs to be repaired or replaced, they can be separated by disassembly, and the usable part can be installed in a new tool for replacing the wheel of the overhead crane, so that a new tool for replacing the wheel of the overhead crane can be obtained. On the one hand, it can save costs, and on the other hand, it can effectively improve the maintenance speed.

[0046] In this embodiment, preferably, the lifting ring 2 and the pull rod 1 are threadedly connected.

[0047] The threaded connection can realize a detachable connection between the lifting ring 2 and the pull rod 1. In this way, maintenance is also more convenient.

[0048] The lifting ring 2 is provided with a screw rod, and the tie rod 1 is provided with a threaded hole. The connection between the lifting ring 2 and the tie rod 1 is achieved by screwing the screw rod into the threaded hole. If the connection position becomes loose or the screw rod breaks, etc., a new screw rod can be welded on the lifting ring 2 and / or a new threaded hole can be drilled on the tie rod 1 to achieve reconnection, which is very convenient and can effectively save manufacturing costs.

[0049] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0050] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0051] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A tool for replacing overhead crane wheels, characterized in that: The tool for replacing the overhead crane wheel comprises a pull rod (1), a suspension rope (3) and a lifting ring (2) fixedly connected to the pull rod (1), wherein the suspension rope (3) passes through the lifting ring (2) and is used to hang the pull rod (1); The portion between the two ends of the pull rod (1) and the lifting ring (2) is respectively arranged as a short side and a long side, the length of the short side is not less than 500 mm, and the length of the long side is greater than the short side.

2. The tool for replacing a crown wheel according to claim 1, characterized in that: The length of the long side is not less than twice the length of the short side.

3. The tool for replacing a crown wheel according to claim 2, characterized in that: The long sides are arranged as a splicing structure.

4. The tool for replacing a crown wheel according to claim 3, characterized in that: The splicing structure is configured as two parts connected by threads.

5. The tool for replacing a crown wheel according to claim 1, characterized in that: The suspension rope (3) is configured as a flexible connecting material.

6. The tool for replacing a crown wheel according to claim 5, characterized in that: The suspension rope (3) is arranged as a circular ring connected end to end.

7. The tool for replacing a crown crane wheel according to claim 1, characterized in that: The lifting ring (2) is detachably connected to the pulling rod (1).

8. The tool for replacing a crown crane wheel according to claim 7, characterized in that: The lifting ring (2) is threadedly connected to the pull rod (1).

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