CN220376173U - Portal crane with underneath-arranged cable drum - Google Patents
Portal crane with underneath-arranged cable drum Download PDFInfo
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- CN220376173U CN220376173U CN202321956713.6U CN202321956713U CN220376173U CN 220376173 U CN220376173 U CN 220376173U CN 202321956713 U CN202321956713 U CN 202321956713U CN 220376173 U CN220376173 U CN 220376173U
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- cable drum
- crane
- lifting appliance
- drum
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- 238000004804 winding Methods 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
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- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of portal cranes, and particularly discloses a portal crane with a cable reel arranged below, which comprises a crane main body, a crane boom, a lifting appliance provided with operation electric equipment, a cable, one end of which is led out from the top of the crane boom, the other end of which is electrically connected with the operation electric equipment, and a plurality of lifting steel wires for lifting the lifting appliance, wherein the portal crane also comprises the cable reel; the cable drum is arranged on the top surface of the lifting appliance; the cable drum is used for winding and tensioning the cable. The utility model can straighten and tension the cable supplied by the lifting appliance with low cost, high efficiency and safety, reduces the influence of the dead weight of the cable and ensures that the cable and the lifting steel wire are synchronously retracted and released in the lifting process.
Description
Technical Field
The utility model relates to the technical field of portal cranes, in particular to a portal crane with a cable drum arranged below.
Background
In the technical field of gantry cranes, if a lifting appliance such as a lifting container, a rotary lifting hook, an electromagnet and the like is used for operation, cables are required to supply power, so that the retraction mode of the cables is very important. At present, many mature practical cases exist on the machinery such as gantry cranes, bridge cranes, door cranes and the like, but the overall layout thought of the cable drum is still laid at the upper end of the cable, and the cable is lifted upwards by using external force. Because the cable itself is heavy, a motor with higher power is required to drive the winding drum, so that the winding drum is overlarge in volume and difficult to arrange at the head of the crane boom. If the original gantry crane does not take into account the cable used later in the manufacturing design process, a larger modification of the boom head is also required, thereby further increasing the modification cost. Therefore, how to scientifically and reasonably arrange the cable for supplying power to the lifting appliance of the gantry crane becomes a technical problem in the technical field.
In the existing gantry crane, there are three types of vertical retraction modes of cables for supplying power to a lifting appliance: firstly, arranging a winding drum at the head of a crane boom, and driving the winding drum to rotate through a motor; secondly, arranging a winding drum on a base of a crane boom, additionally arranging a pulley block at the head of the crane boom, and driving the winding drum to rotate through a motor; third, as shown in fig. 1, a cable storage basket (marked 300 in fig. 1) is arranged above the lifting appliance, and the cable is vertically placed by utilizing the gravity of the cable.
The first and second existing vertical cable winding and unwinding modes have the following two disadvantages:
lifting the cable from the head of the crane boom and the upper end of the cable is required, but a large power driving motor is required due to the self weight of the cable;
in order to keep the cable and the wire rope up and down synchronous, a large variable frequency motor is required to be used, and the cost, the complexity of a control system and the failure rate are increased.
The third conventional cable vertical winding and unwinding method has the following disadvantages:
because there is not external tensioning force at both ends about the cable, lead to the cable to rock easily, and then by wire rope winding tearing, need encapsulate the lead grain in the cable inside moreover, increase dead weight and cost.
Disclosure of Invention
In view of the foregoing, it is necessary to provide a portal crane with a cable drum arranged below the portal crane to overcome the drawbacks of the prior art, so as to solve the technical problem of how to straighten and tension the cable powered by the hanger with low cost, high efficiency and safety.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a portal crane with a cable drum arranged below, the portal crane comprises a crane main body, a crane arm frame, a lifting appliance provided with operation electric equipment, a cable, a plurality of lifting steel wires and a cable reel, wherein one end of the cable is led out from the top of the crane arm frame, the other end of the cable is electrically connected with the operation electric equipment, and the lifting steel wires are used for lifting the lifting appliance; the cable drum is arranged on the top surface of the lifting appliance; the cable drum is used for winding and tensioning the cable.
Further, the cable drum comprises a first vertical support body, a second vertical support body, a transverse shaft, a roller and a roller driving device; the first vertical supporting body and the second vertical supporting body are mutually spaced; the first vertical supporting body and the second vertical supporting body are arranged on the lifting appliance, or the cable drum also comprises a base arranged on the lifting appliance, and the first vertical supporting body and the second vertical supporting body are arranged on the base vertically; one end of the transverse shaft is pivoted on the first vertical support body, and the other end of the transverse shaft is pivoted on the second vertical support body; the roller is sleeved on the transverse shaft and is used for winding the cable; the roller driving device is used for driving the roller to rotate.
Further, the roller driving device is a driving motor or a rolling spring piece device.
Further, when the roller driving device is a driving motor, the gantry crane further comprises a frequency converter; the frequency converter is arranged on the lifting appliance and used for controlling the driving motor in a frequency conversion mode.
Further, a first pulley assembly and a second pulley assembly are respectively arranged on two sides of the top surface of the lifting appliance; the first pulley assembly and the second pulley assembly are both used for winding in the hoisting steel wire; the cable drum sets up in the middle part of hoist top surface.
Further, when the lifting appliance descends, the cable drum pays out; when the lifting appliance is lifted, the cable drum takes up the cable so as to tension the cable.
Further, the operation electric equipment is a lifting hook rotation driving device or an electromagnet device.
Further, a cable guide frame is arranged on the cable drum or the lifting appliance; the cable guide frame is used for guiding the cable which is put on the cable guide frame and is wound and unwound.
The beneficial effects of the utility model are as follows:
according to the utility model, the cable drum is arranged on the lifting appliance, the upper end of the cable is fixedly arranged at the head part of the crane boom, and under the winding tensioning action of the cable drum, the influence of the dead weight of the cable is reduced, so that the cable and the lifting steel wire are synchronously wound and unwound in the lifting process, and the cable is not swayed excessively or even wound and torn by the steel wire rope due to the swing of the operation of the gantry crane or the blowing of strong wind.
According to the utility model, lead particles do not need to be packaged in the cable, and a large motor is not required to be used for driving the head of the crane boom, so that the transformation cost and the failure rate are reduced.
Drawings
FIG. 1 is a schematic structural view of a cable storage basket of a conventional gantry crane mounted on a hanger;
FIG. 2 is a schematic view of a gantry crane with a down-set cable drum according to the present utility model;
FIG. 3 is an enlarged view of a portion of the view A of FIG. 2;
fig. 4 is a right side view of a cable drum according to the present utility model;
fig. 5 is a schematic view showing the installation of a cable drum on a hanger according to the present utility model
Reference numerals illustrate:
a crane body 400; a boom 500; a lifting appliance 1; a cable 100; hoisting the steel wire 200; a cable drum 2; a first upright support 21; a second upright support 22; a horizontal axis 23; a drum 25; a drum driving device 24; a first pulley assembly 11; a second pulley assembly 12; cable storage basket 300; a cable guide 26.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be further clearly and completely described in the following in conjunction with the embodiments of the present utility model. It should be noted that the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is to be understood that the terms "upper," "lower," "front," "rear," "left," "right," and the like indicate an orientation or positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a definition of "a first", "a second", "a third" or a fourth "feature may explicitly or implicitly include one or more of such features.
Example 1
As shown in fig. 2-5:
the embodiment provides a portal crane with a cable drum arranged below, which comprises a crane main body 400, a crane boom 500, a lifting appliance 1 provided with operation electric equipment, a cable 100 with one end led out from the top of the crane boom 500 and the other end electrically connected to the operation electric equipment, and a plurality of lifting steel wires 200 for lifting the lifting appliance 1, and further comprises a cable drum 2; the cable drum 2 is arranged on the top surface of the lifting appliance 1; the cable drum 2 is used for winding up and tensioning the cable 100.
In particular, the working electrical equipment may be a mating electrical equipment provided with a spreader 1 for lifting containers or rotating hooks or electromagnets or the like.
Specifically, the cable drum 2 winds and tightens the cable 100 by the elastic force of the internal spring; the cable 100 is wound around a length of about sixty-five meters.
Specifically, the cable 100 hangs down from the top (or head) of the boom 500 to the cable reel 2, and after threading into the interior of the cable reel 2, it is wired and pretensioned straight.
Further in this embodiment, the cable drum 2 comprises a first upright support 21, a second upright support 22, a transverse shaft 23, a drum 25 and a drum drive 24; the first upright support 21 and the second upright support 22 are spaced apart from each other; the first upright support body 21 and the second upright support body 22 are arranged on the lifting appliance 1, or the cable drum 2 also comprises a base arranged on the lifting appliance 1, and the first upright support body 21 and the second upright support body 22 are arranged on the base; one end of the cross shaft 23 is pivoted to the first upright support 21, and the other end of the cross shaft 23 is pivoted to the second upright support 22; the roller 25 is sleeved on the transverse shaft 23, and the roller 25 is used for winding the cable 100; the roller driving device 24 is used for driving the roller 25 to rotate.
Specifically, the cable 100 is wound three times on the drum 25 so that the cable 100 is exactly in the middle of the four vertical hoisting wires 200 when freely drooping; and a steel wire mesh protective sleeve is additionally arranged at the bending part of the upper end of the cable 100.
Specifically, the reel base is fixed on the spreader 1 by means of soldering.
Further, in this embodiment, the roller driving device 24 is a driving motor or a rolling spring leaf device.
Specifically, the wrap spring device imparts a suitable tension to the cable 100 by a spring force to maintain the cable 100 in a straightened state under any operating conditions.
Further, in this embodiment, when the roller driving device 24 is a driving motor, the gantry crane further includes a frequency converter; the frequency converter is arranged on the lifting appliance 1 and is used for controlling the driving motor in a frequency conversion mode.
Further, in this embodiment, two sides of the top surface of the lifting appliance 1 are respectively provided with a first pulley assembly 11 and a second pulley assembly 12; the first pulley assembly 11 and the second pulley assembly 12 are used for winding in the hoisting steel wire 200; the cable drum 2 is arranged in the middle of the top surface of the lifting appliance 1.
Further in this embodiment, when the spreader 1 descends, the cable drum 2 pays out; when the spreader 1 is raised, the cable drum 2 takes up the wire thereby tensioning the cable 100.
In this embodiment, the working electric device is a hook rotation driving device or an electromagnet device.
Further in this embodiment, the cable drum 2 or the hanger 1 is provided with a cable guide frame 26; the cable guide 26 guides the cable 100 wound around the cable guide 26.
Specifically, the transverse rotating shaft assembly of the cable guide frame 26 is composed of two nylon guide rods with the diameter of 60mm and the interval of 200mm, and the cable guide frame 26 is fixed on the side of the roller 25 in a welding mode.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (8)
1. The portal crane with the cable reel arranged below comprises a crane main body (400), a crane arm support (500), a lifting appliance (1) provided with operation electric equipment, a cable (100) with one end led out from the top of the crane arm support (500) and the other end electrically connected with the operation electric equipment, and a plurality of lifting steel wires (200) for lifting the lifting appliance (1), and is characterized by further comprising the cable reel (2); the cable drum (2) is arranged on the top surface of the lifting appliance (1); the cable drum (2) is used for winding and tensioning the cable (100).
2. Portal crane with an underlaid cable drum according to claim 1, characterized in that the cable drum (2) comprises a first upright support (21), a second upright support (22), a transverse shaft (23), a drum (25) and a drum drive (24); the first vertical support body (21) and the second vertical support body (22) are mutually spaced; the first vertical supporting body (21) and the second vertical supporting body (22) are arranged on the lifting appliance (1), or the cable drum (2) further comprises a base arranged on the lifting appliance (1), and the first vertical supporting body (21) and the second vertical supporting body (22) are arranged on the base vertically; one end part of the transverse shaft (23) is pivoted on the first vertical support body (21), and the other end part of the transverse shaft (23) is pivoted on the second vertical support body (22); the roller (25) is sleeved on the transverse shaft (23), and the roller (25) is used for winding the cable (100); the roller driving device (24) is used for driving the roller (25) to rotate.
3. Gantry crane with a down-laid cable drum according to claim 2, characterized in that the drum drive (24) is a drive motor or a wrap spring leaf.
4. A gantry crane with a down-laid cable drum according to claim 3, characterized in that the gantry crane further comprises a frequency converter when the drum drive (24) is a drive motor; the frequency converter is arranged on the lifting appliance (1) and is used for controlling the driving motor in a frequency conversion mode.
5. Portal crane with underlying cable drum according to any of claims 1-4, characterized in that the two sides of the top surface of the spreader (1) are provided with a first pulley assembly (11), a second pulley assembly (12) respectively; the first pulley assembly (11) and the second pulley assembly (12) are used for winding in the hoisting steel wire (200); the cable drum (2) is arranged in the middle of the top surface of the lifting appliance (1).
6. Gantry crane with down-laid cable drum according to any of claims 1-4, characterized in that the cable drum (2) is paid out when the spreader (1) is lowered; when the lifting appliance (1) is lifted, the cable drum (2) is wound up so as to tension the cable (100).
7. Gantry crane with an underlaid cable drum according to any of the claims 1-4, characterized in that the working electrical equipment is a hook rotation drive or an electromagnet device.
8. Gantry crane with down-laid cable drum according to claim 1, characterized in that the cable drum (2) or the spreader (1) is provided with a cable guide (26); the cable guide (26) guides a cable (100) wound and unwound on the cable guide (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321956713.6U CN220376173U (en) | 2023-07-24 | 2023-07-24 | Portal crane with underneath-arranged cable drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321956713.6U CN220376173U (en) | 2023-07-24 | 2023-07-24 | Portal crane with underneath-arranged cable drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220376173U true CN220376173U (en) | 2024-01-23 |
Family
ID=89563993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321956713.6U Active CN220376173U (en) | 2023-07-24 | 2023-07-24 | Portal crane with underneath-arranged cable drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220376173U (en) |
-
2023
- 2023-07-24 CN CN202321956713.6U patent/CN220376173U/en active Active
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