CN114572834A - Crane system and prefabricated substation for crane - Google Patents
Crane system and prefabricated substation for crane Download PDFInfo
- Publication number
- CN114572834A CN114572834A CN202210458406.9A CN202210458406A CN114572834A CN 114572834 A CN114572834 A CN 114572834A CN 202210458406 A CN202210458406 A CN 202210458406A CN 114572834 A CN114572834 A CN 114572834A
- Authority
- CN
- China
- Prior art keywords
- box body
- transformer
- transformer substation
- crane
- voltage cabinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005611 electricity Effects 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000003044 adaptive Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
Abstract
The invention relates to a hoisting system which comprises a step-down transformer substation, a crane and a slide wire electricity taking device, wherein the crane comprises a rail and a bridge, the slide wire electricity taking device comprises a slide wire and an electricity taking part, the slide wire is arranged in a direction parallel to the rail, the electricity taking part is electrically connected with a high-voltage lead-in wire of the step-down transformer substation, a low-voltage lead-out wire of the step-down transformer substation is electrically connected with electric equipment of the crane, and the step-down transformer substation is fixedly connected with the bridge. It can reduce the loss of the transmission line. A pre-installed transformer substation for a crane comprises a transformer substation box body, wherein a safety channel is arranged on one side in the transformer substation box body, and a cable fixing device, a high-voltage cabinet, a low-voltage cabinet and a step-down transformer are arranged on the other side in the transformer substation box body; the high-voltage cabinet, the low-voltage cabinet and the step-down transformer are connected with the transformer box body through vibration reduction devices. The crane bridge frame vibration isolation device can adapt to the working environment of narrow space and vibration on the crane bridge frame.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to a hoisting system and a preassembled transformer substation for a crane.
Background
The bridge crane includes track, bridge frame, bogie and hoisting mechanism, the bridge frame has bogie moving mechanism for the bridge frame to move along the track, the bogie moving mechanism for the bogie to move along the direction parallel to the bridge frame, and the hoisting mechanism is installed on the bogie for hooking and hoisting heavy matter. Generally, the cart traveling mechanism and the trolley traveling mechanism are both electric motors, so that a main slide line is arranged in a direction parallel to the rail, an auxiliary slide line is arranged in a direction parallel to the bridge, electric equipment for the crane and the auxiliary slide line are all powered by a first power-taking part electrically connected with the main slide line in a sliding manner, and the trolley traveling mechanism is powered by a second power-taking part electrically connected with the auxiliary slide line.
The existing bridge crane is driven by a motor, and a special substation is required to be configured. At present, a transformer substation is fixed on the ground, the high-voltage side of the transformer substation is electrically connected with high voltage, the low-voltage side of the transformer substation is connected with a slide wire electricity taking device, a crane takes electricity through the slide wire electricity taking device, and the crane moves relative to the transformer substation during working. Generally, the voltage of the slide wire electricity taking device is 0.4kV, and the current of the slide wire electricity taking device in the running state of the crane is 7.5I-25I. If the line of the slide wire electricity taking device is too long, the voltage drop of the slide wire electricity taking device is obvious, and the transformer substation needs to be operated in an over-current mode in order to maintain the voltage of the motor in a rated voltage state, so that the service life of transformer substation equipment is damaged.
Disclosure of Invention
A first object of the present invention is to provide a hoisting system to reduce transmission line losses.
The second purpose of the invention is to provide a preassembled transformer substation for a crane, which is suitable for a working environment with narrow space and vibration on the crane.
The technical scheme of the invention is as follows:
the utility model provides a hoisting system, gets the electric installation including step-down transformer substation, hoist and slide-wire, the hoist includes track and crane span structure, the slide-wire gets the electric installation and includes the slide-wire and gets electric portion, the slide-wire is along being on a parallel with orbital direction sets up, get electric portion with step-down transformer substation's high-pressure service incoming line electricity is connected, step-down transformer substation's low pressure lead-out wire with the consumer electricity of hoist is connected, step-down transformer substation with crane span structure fixed connection.
The crane bridge has small width, and when the step-down transformer substation is fixedly connected with the bridge, the internal structure of the step-down transformer substation needs to be redesigned so as to adapt to the working environment with narrow space and vibration on the bridge.
Preferably, the crane is a gantry crane or a bridge crane.
A pre-installed transformer substation for a crane comprises a transformer substation box body, wherein a safety channel is arranged on one side in the transformer substation box body, and a cable fixing device, a high-voltage cabinet, a low-voltage cabinet and a step-down transformer are arranged on the other side in the transformer substation box body; the high-voltage cabinet, the low-voltage cabinet and the step-down transformer are connected with the transformer box body through vibration reduction devices.
Preferably, damping device includes transformer spring base, high-voltage board damping pad and low-voltage board damping pad, step-down transformer with transformer spring base's last expansion end fixed connection, transformer spring base's lower expansion end with transformer box fixed connection the high-voltage board with still be equipped with the high-voltage board damping pad between the transformer box, the high-voltage board with the transformer box is connected through first threaded connection the low-voltage board with still be equipped with the low-voltage board damping pad between the transformer box, the low-voltage board with the transformer box passes through second threaded connection and connects.
Preferably, the step-down transformer is a dry type transformer.
Preferably, the transformer box body is a fully-sealed transformer box body, a cooling device is further installed on the cable fixing device side of the transformer box body, and the cooling device is used for cooling the step-down transformer. The hoist operational environment is mostly high temperature high dust, and some environment is high humidity in addition, makes the transformer substation box body into the totally enclosed transformer substation box body, can make the transformer substation more adapt to hoist operational environment. After the transformer box body is made into a fully-sealed transformer box body, the problem of heat dissipation of the step-down transformer needs to be considered, and therefore a cooling device needs to be added.
Further preferably, the totally enclosed transformer box body includes high strength housing box body frame, the downside frame welding of high strength housing box body frame has the steel sheet, the upside frame connection of high strength housing box body frame has the roof of dismantling, the back side frame of high strength housing box body frame is connected with the back door, the left side frame mounting of high strength housing box body frame has left side outward opening door, the right side frame mounting of high strength housing box body frame has right side inward opening door, the front side frame of high strength housing box body frame is connected with can dismantle the wall body.
Preferably, the cooling device is an indoor unit of an air conditioner.
The invention has the beneficial effects that:
1. the slide wire electricity taking device is arranged on the high-voltage side of the step-down transformer substation, and after the step-down transformer substation is fixedly connected with the bridge, the diameter of a slide wire can be reduced, the wire loss is reduced, rated current of power supply system equipment runs, and the service life of the slide wire electricity taking device is long.
2. Through redesign distribution between security channel, cable fixing device, high-voltage board, low-voltage board, step-down transformer, the heat sink in the transformer box, can make the shape adjustment of step-down transformer substation be the length of narrowness, more adapt to the installation environment of crane span structure like this, through set up vibration damper between high-voltage board, low-voltage board, step-down transformer and transformer box, can make step-down transformer substation adapt to the vibration environment of crane span structure removal process.
Drawings
Fig. 1 is a top view of a hoist system.
Fig. 2 is a top view of the interior of a preassembled transformer substation for a crane.
Fig. 3 is an internal front view of a preassembled transformer substation for a crane.
Reference number specification, 11-crane, 111-rail, 112-bridge, 21-slide wire, 22-electricity taking part, 3-step-down transformer substation, 31-high-voltage lead-in wire, 32-low-voltage lead-out wire, 33-transformer box, 34-high-voltage cabinet, 35-low-voltage cabinet, 36-step-down transformer, 37-cooling device, 38-damping pad, 39-transformer spring base.
Detailed Description
The present invention is described below in terms of embodiments in conjunction with the accompanying drawings to assist those skilled in the art in understanding and implementing the present invention. Unless otherwise indicated, the following embodiments and technical terms therein should not be understood to depart from the background of the technical knowledge in the technical field.
Example 1: a hoisting system, see figure 1, comprises a step-down transformer substation 3, a crane 11 and a slide wire electricity taking device. The crane 11 comprises a rail 111 and a bridge 112, the bridge 112 being movable in the direction of the rail 111. The slide wire electricity taking device comprises a slide wire 21 and an electricity taking part 22, and the electricity taking part 22 is movably and electrically connected with the slide wire 21. The slide wire 21 is arranged in a direction parallel to the rail 111, the electricity-taking part 22 is electrically connected with a high-voltage lead-in wire 31 of the step-down transformer substation 3, a low-voltage lead-out wire 32 of the step-down transformer substation 3 is electrically connected with electric equipment of the crane 11, and the step-down transformer substation 3 is fixedly connected with the bridge 112.
The step-down substation can be suspended below the bridge 112 or can be located above the bridge 112.
In this embodiment, the crane is a bridge crane, and in other embodiments, the crane may also be a gantry crane.
The invention has the beneficial effects that: the voltage of the slide wire is increased (380V is increased to 3kV, even 10 kV), the line loss is reduced, the line diameter is reduced, and the line fixing cost is reduced; see table 1 for details.
Table 1 comparison of the effects of the present invention with the prior art
The crane span structure width is less, when step-down transformer substation and crane span structure fixed connection, needs redesign step-down transformer substation inner structure to adapt to the operating environment that the space is narrow and small, vibrate on the crane span structure.
Example 2: a pre-installed transformer substation for a crane is disclosed, and referring to fig. 2-3, the pre-installed transformer substation comprises a transformer box body 33, a safety channel is arranged on one side in the transformer box body 33, and a cable fixing device, a high-voltage cabinet 34, a low-voltage cabinet 35 and a step-down transformer 36 are arranged on the other side in the transformer box body 33; the high-voltage cabinet 34, the low-voltage cabinet 35 and the step-down transformer 36 are connected with the transformer box body 33 through a damping device. The high-voltage lead-in wires and the low-voltage lead-out wires are preferably arranged on the same side of the transformer box body 33, namely, on the side of the high-voltage cabinet 34, the low-voltage cabinet 35 and the step-down transformer 36.
Preferably, the damping device comprises a transformer spring base 39, a high-voltage cabinet damping pad and a low-voltage cabinet damping pad, the upper movable end of the step-down transformer 36 is fixedly connected with the transformer spring base 39, the lower movable end of the transformer spring base 39 is fixedly connected with the transformer box body 33, the high-voltage cabinet damping pad is further arranged between the high-voltage cabinet 34 and the transformer box body 33, the first threaded connector comprises a first bolt and a first nut, the first bolt penetrates through a bottom plate of the high-voltage cabinet 34, the high-voltage cabinet damping pad and the transformer box body 33 and is fixedly connected with the first nut, and therefore the first bolt and the first nut draw the high-voltage cabinet 34 and press the transformer box body 33 on the high-voltage cabinet damping pad. Still be equipped with the low-voltage cabinet damping pad between low-voltage cabinet 35 and transformer box body 33, second threaded connection spare includes second bolt and second nut, and the second bolt passes low-voltage cabinet 35's bottom plate, low-voltage cabinet damping pad, transformer box body 33 and second nut fastening connection, and like this, second bolt and second nut just pull low-voltage cabinet 35, transformer box body 33 press on the low-voltage cabinet damping pad. In this embodiment, the high-voltage cabinet damping pad and the low-voltage cabinet damping pad are both formed by damping pads 38. The vibration damping pad 38 may be an elastic pad such as a rubber pad.
The transformer spring base comprises a base and a pressure spring, one end of the pressure spring is fixedly connected with the base, and the other end of the pressure spring is fixedly connected with the bottom of the step-down transformer 36. The compression spring is generally selected from a column spring, and a guide column can be arranged on the base according to needs, the column spring is sleeved on the guide column, and a gap is formed between the upper end of the guide column and the step-down transformer 36.
Preferably, step-down transformer 36 is a dry transformer.
Preferably, the substation casing 33 is a totally enclosed substation casing, and a cooling device 37 is further installed on the cable fixing device side of the substation casing 33, and the cooling device 37 is used for cooling the step-down transformer 36. The crane working environment is mostly high-temperature and high-dust, and some environments are high in humidity, so that the transformer box body is made into a fully-sealed transformer box body, and the step-down transformer substation can be more adaptive to the crane working environment. In this embodiment, the heat sink selects the air conditioner, and only need to install the air conditioner indoor set in the transformer substation box can. Step-down transformer 36 is preferably located adjacent to temperature reduction device 37. The cable fixture side of the substation enclosure 33 is the side opposite the safe access of the substation enclosure.
Further preferably, the totally enclosed transformer box body includes high strength housing box body frame, the downside frame welding of high strength housing box body frame has the steel sheet, the upside frame connection of high strength housing box body frame has the roof of dismantling, the back side frame of high strength housing box body frame is connected with the back door, the left side frame mounting of high strength housing box body frame has left side outward opening door, the right side frame mounting of high strength housing box body frame has right side inward opening door, the front side frame of high strength housing box body frame is connected with can dismantle the wall body.
The invention is described in detail above with reference to the figures and examples. It should be understood that in practice the description of all possible embodiments is not exhaustive and that the inventive concepts are described herein as far as possible by way of illustration. Without departing from the inventive concept of the present invention and without any creative work, a person skilled in the art should, in all of the embodiments, make optional combinations of technical features and experimental changes of specific parameters, or make a routine replacement of the disclosed technical means by using the prior art in the technical field to form specific embodiments, which belong to the content implicitly disclosed by the present invention.
Claims (8)
1. The hoisting system comprises a step-down transformer substation, a crane and a slide wire electricity taking device, wherein the crane comprises a rail and a bridge, the slide wire electricity taking device comprises a slide wire and an electricity taking part, the slide wire is arranged in a direction parallel to the rail, the crane is characterized in that the electricity taking part is electrically connected with a high-voltage lead-in wire of the step-down transformer substation, a low-voltage lead-out wire of the step-down transformer substation is electrically connected with electric equipment of the crane, and the step-down transformer substation is fixedly connected with the bridge.
2. The hoisting system of claim 1 wherein the crane is a gantry crane or a bridge crane.
3. A pre-installed transformer substation for a crane comprises a transformer substation box body and is characterized in that a safety channel is arranged on one side in the transformer substation box body, and a cable fixing device, a high-voltage cabinet, a low-voltage cabinet and a step-down transformer are arranged on the other side in the transformer substation box body; the high-voltage cabinet, the low-voltage cabinet and the step-down transformer are connected with the transformer box body through vibration reduction devices.
4. The preassembled transformer substation for cranes as set forth in claim 3, wherein the damping device comprises a transformer spring base, a high-voltage cabinet damping pad and a low-voltage cabinet damping pad, the step-down transformer is fixedly connected with the upper movable end of the transformer spring base, the lower movable end of the transformer spring base is fixedly connected with the transformer box body, the high-voltage cabinet damping pad is further arranged between the high-voltage cabinet and the transformer box body, the high-voltage cabinet is connected with the transformer box body through a first threaded connector, the low-voltage cabinet damping pad is further arranged between the low-voltage cabinet and the transformer box body, and the low-voltage cabinet is connected with the transformer box body through a second threaded connector.
5. The preassembled transformer substation for cranes as set forth in claim 3, wherein said step-down transformer is a dry transformer.
6. The preassembled transformer substation for cranes as set forth in claim 3, wherein the transformer substation body is a fully sealed transformer substation body, and a temperature reduction device is further installed on the cable fixing device side of the transformer substation body, and the temperature reduction device is used for reducing the temperature of the step-down transformer.
7. The preassembled transformer substation for a crane of claim 6, wherein the fully sealed transformer substation box body comprises a high-strength shell box body frame, a steel plate is welded on a lower side frame of the high-strength shell box body frame, a detachable top plate is connected to an upper side frame of the high-strength shell box body frame, a rear side frame of the high-strength shell box body frame is connected with a rear door, a left outward opening door is installed on a left side frame of the high-strength shell box body frame, a right inward opening door is installed on a right side frame of the high-strength shell box body frame, and a detachable wall body is connected to a front side frame of the high-strength shell box body frame.
8. The preassembled transformer substation for cranes as set forth in claim 6, wherein said cooling device is an indoor unit of an air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210458406.9A CN114572834A (en) | 2022-04-28 | 2022-04-28 | Crane system and prefabricated substation for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210458406.9A CN114572834A (en) | 2022-04-28 | 2022-04-28 | Crane system and prefabricated substation for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114572834A true CN114572834A (en) | 2022-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210458406.9A Pending CN114572834A (en) | 2022-04-28 | 2022-04-28 | Crane system and prefabricated substation for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114572834A (en) |
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| CN206327161U (en) * | 2016-12-29 | 2017-07-14 | 江苏前山管道技术有限公司 | A kind of slip power taking rail transport small car |
| CN107879252A (en) * | 2017-11-05 | 2018-04-06 | 盐田国际集装箱码头有限公司 | A kind of tire type gantry crane is mixed can system |
| CN207459488U (en) * | 2017-12-06 | 2018-06-05 | 林燕红 | A kind of power transformation box with shockproof function |
| CN208571397U (en) * | 2018-08-20 | 2019-03-01 | 华翔翔能电气股份有限公司 | A kind of full burned prefabricated substation with water-circulating cooling device |
| CN112234488A (en) * | 2020-11-11 | 2021-01-15 | 中泽电气科技有限公司 | Outdoor prefabricated substation for urban power grid transformation |
| CN212518033U (en) * | 2020-05-15 | 2021-02-09 | 天津九晟机械设备制造有限公司 | Container formula transformer substation convenient to equipment transportation |
-
2022
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Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI224061B (en) * | 2000-06-17 | 2004-11-21 | Alstom | Improvements in electrical vehicles |
| WO2008043244A1 (en) * | 2006-09-18 | 2008-04-17 | Qinfen He | Power supplying equipment from electric supply network for rubber-tired crane in port |
| JP2009113691A (en) * | 2007-11-08 | 2009-05-28 | Kawasaki Heavy Ind Ltd | Ground power supply system of battery-driven type vehicle in railroad vehicle |
| CN201800722U (en) * | 2010-09-26 | 2011-04-20 | 济南金力液压机械有限公司 | Electric flatcar with low-voltage track for power supply |
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| WO2014180013A1 (en) * | 2013-05-07 | 2014-11-13 | He Chengxiang | Box-type substation |
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| CN106253098A (en) * | 2016-08-24 | 2016-12-21 | 泰富重工制造有限公司 | Mobile power transformation electric supply installation |
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| CN207459488U (en) * | 2017-12-06 | 2018-06-05 | 林燕红 | A kind of power transformation box with shockproof function |
| CN208571397U (en) * | 2018-08-20 | 2019-03-01 | 华翔翔能电气股份有限公司 | A kind of full burned prefabricated substation with water-circulating cooling device |
| CN212518033U (en) * | 2020-05-15 | 2021-02-09 | 天津九晟机械设备制造有限公司 | Container formula transformer substation convenient to equipment transportation |
| CN112234488A (en) * | 2020-11-11 | 2021-01-15 | 中泽电气科技有限公司 | Outdoor prefabricated substation for urban power grid transformation |
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