Air conditioning device for crane operating room

Abstract

The invention relates to the technical field of cranes, discloses an air conditioning device for a crane operation room, and solves the problem that internal metal dust is easy to discharge when internal air is discharged due to positive pressure formed in an internal space by an organ cover of a conventional clean room crane. The air pump and the dust removal box are started, the air pump sucks air which just passes through the chain passing groove and carries metal dust into the dust removal box through the horn cover, the dust removal box filters the metal dust and then discharges clean air out of the dust removal box, and then the dust removal box is arranged through the negative charge applying assembly. And floating metal dust is negatively charged when approaching the negative charge endowing assembly and then is adsorbed on the surface by the positive electrode dust collection assembly, and then the positive electrode dust collection assembly automatically scrapes the metal dust on the surface into a dust collection cover, so that automatic cleaning of the metal dust is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and in particular to an air conditioning device for a crane operating room. Background Art

[0002] Cleanroom cranes, also known as air purification cranes, are lifting equipment designed, manufactured, installed, debugged, used and maintained for dust-free space requirements under specific environmental conditions. Cleanroom cranes have a wide range of applications in many fields, including microelectronics, ecological environment, biomedicine, nanotechnology, etc.

[0003] The structure of the clean room crane mainly includes the main beam, crane components, boom, hook and control system. The boom is commonly equipped with a hoist chain, etc. An accordion cover is often set on the periphery of the crane hoist chain to prevent the metal particles or dust generated by friction and wear during the movement of the crane hoist chain from spreading outside the machine. However, when the hoist chain suspends the hook up and down, the accordion cover will form positive or negative pressure on the space inside the cover, and the process will cyclically discharge internal air and inhale external air. When the accordion cover forms positive pressure on the internal space and discharges the internal air, it is easy to discharge the internal metal dust. Therefore, in actual use, it is necessary to reduce the speed of the hoist chain lifting hook moving up and down, reduce the laminar flow speed of the air, and avoid internal dust, but this is bound to affect the use efficiency of the clean room crane. Summary of the invention

[0004] The purpose of the present invention is to provide an air conditioning device for a crane operating room, which solves the problem that when a conventional clean room crane is in use, the accordion cover set on the outside forms a positive pressure on the inner space to discharge the internal air, which easily discharges the internal metal dust.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an air conditioning device for a crane operating room, comprising a main beam; a lifting mechanism for hoisting objects at the lower side of the main beam, the lifting mechanism comprising a crane group at the lower side of the main beam, a hoist chain connected to the lower side of the crane group, a hanging platform connected to the lower side of the hoist chain, and a hook provided at the lower side of the hanging platform; a dust cover is provided on the outer shell of the crane group, a first dust removal mechanism is provided on the outer shell of the hoist chain, a chain groove for the hoist chain to pass through is provided at the lower side of the dust cover, a second dust removal mechanism for dust removal is provided in the dust cover corresponding to the upper side of the chain groove, and a first dust removal mechanism for dust removal is provided on the inner side of the accordion cover; The second dust removal mechanism includes a horn cover arranged above the chain slot, a dust removal box fixedly installed inside the dust cover, a ventilation pipe connected between the dust removal box and the horn cover, and an air pump connected to the ventilation pipe; The first dust removal mechanism includes a positive dust suction component and a negative charge component which are arranged vertically in the accordion cover, the negative charge component is arranged between the positive dust suction component and the hoist chain, the positive dust suction component and the negative charge component are respectively connected to the positive and negative power supplies, an electric field is formed between the positive dust suction component and the negative charge component, and a dust collecting cover is arranged on the lower side of the positive dust suction component; The accordion cover includes an outer keel and an inner keel, and the positive dust suction assembly includes a positive dust suction plate swingably connected to the inner keel. There are multiple positive dust suction plates, and the multiple positive dust suction plates are vertically arranged on the inner side of the dust cover in a shingled manner. Flexible wires are arranged in series on one side of the multiple positive dust suction plates, and the flexible wires are connected to the positive power supply.

[0006] Preferably, the horn cover is adapted along the length direction of the chain slot, and two horn covers are symmetrically arranged on both sides of the chain slot.

[0007] Preferably, pull ropes are respectively provided on the four corners of the upper surface of the hanging platform, a spring disk for elastically winding the pull rope is fixedly installed on the bottom surface of the dust cover, a through hole for the pull rope to pass through is provided on the lower surface of the dust cover, a limiting ring is fixedly provided at the inner corner of the inner keel, and the hanging platform movably passes through the limiting ring.

[0008] Preferably, the positive electrode dust absorption plate includes an insulating plate, a metal plate is embedded in the side of the insulating plate close to the negatively charged component, an electrode connecting column is provided on the side of the insulating plate away from the metal plate, the electrode connecting column is arranged on the upper side of the insulating plate and is electrically connected to the metal plate, and the flexible wire is connected to the electrode connecting column.

[0009] Preferably, the lower side of the metal plate has a length from the lower side of the insulating plate, and the length is greater than the minimum height difference between two adjacent insulating plate tiles when they are stacked.

[0010] Preferably, a rubber scraper is provided on the lower surface of the insulating plate.

[0011] Preferably, an eccentric assembly is connected between the positive dust suction plate and the inner keel, the eccentric assembly includes a mounting frame fixedly connected to the inner keel, a bearing column is rotatably mounted on one side of the mounting frame, a cross bar is fixedly connected to the arc surface of the bearing column, a fixing column is fixedly connected to one end of the cross bar, the fixing column is fixedly connected to one side of the positive dust suction plate, the overall center of gravity of the positive dust suction plate and the eccentric assembly is located on the side away from the negatively charged component, and a push block is provided between the inner wall of the dust collecting hood and the lowest positive dust suction plate, the push block is used to support the positive dust suction plate to tilt toward the direction of the negatively charged component.

[0012] Preferably, the plurality of positive electrode dust collecting plates are arranged adjacent to each other in the vertical direction under the suspension of the eccentric assembly.

[0013] Preferably, the negative charge imparting component comprises a spring barrel fixedly mounted on the upper surface of the hanging platform, a metal mesh is elastically wound on the inner side of the spring barrel, one end of the metal mesh is fixedly connected to the lower surface of the dust cover, and the metal mesh is connected to a negative power supply.

[0014] Preferably, an inclined baffle is provided on the inner side of the dust hood, and the inclined baffle is adapted to the direction in which the lower sides of multiple positive electrode dust suction plates are tilted in the dust hood. The lower side of the dust hood is provided with a collecting box that can be removed from the lower surface of the hanging platform.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an air conditioning device for a crane operating room. When the accordion cover is folded to cause the air in the accordion cover to carry dust and flow into the dust cover through the chain groove, the air pump and the dust removal box are started. The air pump sucks the air carrying metal dust that has just passed through the chain groove into the dust removal box through the horn cover. After the metal dust is filtered by the dust removal box, the clean air is discharged to the outside of the dust cover. Then, by setting a negative charge component, the floating metal dust is negatively charged when it approaches the negative charge component. After the metal dust is negatively charged, it will be adsorbed on the surface by the positive dust suction component. Subsequently, the upper positive dust suction plate will scrape the metal dust on the surface of the lower positive dust suction plate into the dust collecting cover, thereby realizing automatic cleaning of the dust on the surface of the positive dust suction plate and collecting it in the dust collecting cover, thereby collecting the metal dust in the accordion cover and reducing the concentration of the metal dust inside the accordion cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the dust cover and the accordion cover of the present invention; Figure 3 It is a schematic structural diagram of the second dust removal mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the connection between the accordion cover and the hanging platform of the present invention; Figure 5 It is a partial structural schematic diagram of the first dust removal mechanism of the present invention; Figure 6 It is a schematic diagram of the connection structure related to the inner keel of the present invention; Figure 7 It is a schematic diagram of the structure of the eccentric assembly of the present invention; Figure 8 It is a schematic diagram of the planar structure of the positive electrode dust collection assembly and the dust collecting cover of the present invention; Fig. 9 It is a schematic diagram of the structure of the positive electrode dust collecting plate of the present invention; Fig.10 It is a schematic diagram of the structure of the dust collecting hood of the present invention.

[0017] In the figure: 1, main beam; 2, lifting mechanism; 21, hanging platform; 22, hoist chain; 23, crane assembly; 3, dust cover; 31, chain slot; 4, accordion cover; 41, outer keel; 42, inner keel; 43, limit ring; 5, second dust removal mechanism; 51, horn cover; 52, ventilation pipe; 53, air pump; 54, dust removal box; 6, first dust removal mechanism; 61, positive electrode dust suction assembly; 611, positive electrode dust suction plate; 6111, insulation plate; 6 112, metal plate; 6113, rubber scraper; 6114, electrode connecting column; 612, flexible wire; 613, eccentric assembly; 6131, mounting frame; 6132, bearing column; 6133, cross bar; 6134, fixing column; 62, dust hood; 621, push block; 622, inclined baffle; 623, collecting box; 63, negative charge component; 631, coil spring tube; 632, metal mesh; 71, coil spring disk; 72, pull rope. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0019] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0020] Combination Figure 1-Figure 10 An air conditioning device for a crane operating room comprises a main beam 1; a lifting mechanism 2 for lifting objects at the lower side of the main beam 1, the lifting mechanism 2 comprises a crane group 23 at the lower side of the main beam 1, a hoist chain 22 connected to the lower side of the crane group 23, a hanging platform 21 connected to the lower side of the hoist chain 22, and a hook arranged at the lower side of the hanging platform 21; a dust cover 3 is arranged on the outer sleeve of the crane group 23, a first dust removal mechanism 6 is arranged on the outer sleeve of the hoist chain 22, a chain groove 31 for the hoist chain 22 to pass through is opened at the lower side of the dust cover 3, a second dust removal mechanism 5 for dust removal is arranged in the dust cover 3 corresponding to the upper side of the chain groove 31, and a first dust removal mechanism 6 for dust removal is arranged on the inner side of the accordion cover 4; The second dust removal mechanism 5 includes a horn cover 51 disposed above the chain slot 31, a dust removal box 54 fixedly installed inside the dust cover 3, a ventilation pipe 52 connected between the dust removal box 54 and the horn cover 51, and an air pump 53 connected to the ventilation pipe 52; The first dust removal mechanism 6 includes a positive dust suction component 61 and a negative charge component 63 which are arranged vertically in the accordion cover 4. The negative charge component 63 is arranged between the positive dust suction component 61 and the hoist chain 22. The positive dust suction component 61 and the negative charge component 63 are respectively connected to the positive and negative power supplies. An electric field is formed between the positive dust suction component 61 and the negative charge component 63. A dust collecting cover 62 is arranged at the lower side of the positive dust suction component 61. The accordion cover 4 includes an outer keel 41 and an inner keel 42. The positive dust suction assembly 61 includes a positive dust suction plate 611 swingably connected to the inner keel 42. There are multiple positive dust suction plates 611. The multiple positive dust suction plates 611 are vertically stacked on the inner side of the dust cover 3. A flexible wire 612 is arranged in series on one side of the multiple positive dust suction plates 611, and the flexible wire 612 is connected to the positive power supply.

[0021] The above working principle and technical effect are: the hoist chain 22 is lifted by the crane group 23, and the lifting platform 21 is further lifted. The hook on the lower side of the lifting platform 21 is used to connect with the goods. The dust cover 3 is used to cover the crane group 23, and the accordion cover 4 is used to cover the hoist chain 22. The dust cover 3 and the accordion cover 4 are used to isolate the internal metal dust from leaking. The outer keel 41 and the inner keel 42 on the accordion cover 4 are arranged to facilitate its folding. When the hoist chain 22 lifts the accordion cover 4, the retraction and release of the accordion cover 4 causes the pressure inside to change. When the accordion cover 4 is folded, the air in the accordion cover 4 carrying dust flows through the chain slot 31 to the dust cover 3, and the air pump 53 and the dust removal box 54 are started. The air carrying metal dust that has just passed through the chain slot 31 is sucked into the dust removal box 54 by the air pump 53 through the horn cover 51. After the metal dust is filtered by the dust removal box 54, the clean air is discharged to the outside of the dust cover 3. As for the metal dust generated by the friction and wear of the hoist chain 22 in the accordion cover 4, since the metal dust itself has weight, it is easy to fall downward when it is generated and gather at the bottom of the dust cover 3. Therefore, when the space on the lower side of the accordion cover 4 is close to the chain groove 31, a large amount of metal dust stored in the lower space is easy to blow out at the chain groove 31. Therefore, in order to reduce the concentration of metal dust in the accordion cover 4, especially the metal dust in the lower space of the accordion cover 4, the negative charge component 63 is set so that the floating metal dust is negatively charged when it approaches the negative charge component 63. After the metal dust is negatively charged, it will be adsorbed on the surface by the positive electrode dust suction component 61; When dust adheres to the surface of the positive electrode dust suction assembly 61, that is, the surface of the positive electrode dust suction plate 611, as the hoist chain 22 pulls the hanging platform 21 up, so that the outer keel 41 and the inner keel 42 on the accordion cover 4 are folded from bottom to top, the two adjacent positive electrode dust suction plates 611, the upper positive electrode dust suction plate 611 will scrape the metal dust on the surface of the lower positive electrode dust suction plate 611 into the dust collecting hood 62, thereby realizing automatic cleaning of the dust on the surface of the positive electrode dust suction plate 611 and collecting it in the dust collecting hood 62, thereby collecting the metal dust in the accordion cover 4 and reducing the concentration of metal dust inside it.

[0022] In the previous embodiment, the speaker cover 51 is adapted along the length direction of the chain slot 31 , and two speaker covers symmetrically disposed on both sides of the chain slot 31 are provided.

[0023] Specifically, the air inlets of the two horn covers 51 are arranged opposite to each other, and the hoist chain 22 passing through the chain slot 31 and entering the dust cover 3 is placed between the two horn covers 51. The two horn covers 51 are used to fully cover the periphery of the chain slot 31, so that the metal dust can be fully sucked into the horn covers 51 when passing through the chain slot 31.

[0024] In the previous embodiment: pull ropes 72 are respectively arranged on the four corners of the upper surface of the hanging platform 21, a coil spring disk 71 for elastically winding the pull rope 72 is fixedly installed on the bottom surface of the dust cover 3, a through hole for the pull rope 72 to pass through is arranged on the lower surface of the dust cover 3, a limit ring 43 is fixedly arranged at the inner corner of the inner keel 42, and the hanging platform 21 moves through the limit ring 43.

[0025] Specifically, the weight of the hanging platform 21 can elastically pull the pull rope 72 out of the coiled spring disk 71. When the hanging platform 21 moves up and down, the pull rope 72 is elastically pulled by the coiled spring disk 71 and is always in a vertically taut state. The limiting ring 43 is used to limit the plurality of inner keels 42 to remain in the same vertical direction, thereby facilitating better stacking of the plurality of positive electrode dust collecting plates 611 for subsequent scraping of metal dust.

[0026] In the previous embodiment: the positive electrode dust suction plate 611 includes an insulating plate 6111, a metal plate 6112 is embedded on the side of the insulating plate 6111 close to the negative charge component 63, an electrode connecting column 6114 is provided on the side of the insulating plate 6111 away from the metal plate 6112, the electrode connecting column 6114 is arranged on the upper side of the insulating plate 6111 and is electrically connected to the metal plate 6112, and the flexible wire 612 is connected to the electrode connecting column 6114.

[0027] Specifically, by only setting the metal plate 6112 on the side of the insulating plate 6111 close to the negatively charged component 63, the metal dust is only adsorbed on the side close to the negatively charged component 63, so that the other insulating plate 6111 above can concentrate and hang down the adsorbed metal dust.

[0028] In the previous embodiment: the lower side of the metal plate 6112 has a length from the lower side of the insulating plate 6111, and the length is greater than the minimum height difference between two adjacent insulating plates 6111 when they are stacked.

[0029] Specifically, when the insulating plate 6111 moves upward with the hanging platform 21, the two adjacent insulating plates 6111 are stacked to the maximum extent, and the lower side of the upper insulating plate 6111 can completely cover the metal plate 6112 on the side surface of the lower insulating plate 6111, so that when the dust is pushed to no longer contact with the metal plate 6112, it loses its adsorption force and can fall into the inner side of the dust collecting hood 62 under the action of gravity, thereby achieving complete cleaning of the metal dust adsorbed on the surface of the positive electrode dust collecting plate 611.

[0030] In the previous embodiment: a rubber scraper 6113 is provided on the lower surface of the insulating plate 6111 .

[0031] Specifically, the rubber scraper 6113 can form a better contact with the surface of the metal plate 6112 below, so that the surface of the metal plate 6112 can be better cleaned.

[0032] In the previous embodiment: an eccentric component 613 is connected between the positive electrode dust collecting plate 611 and the inner keel 42, the eccentric component 613 includes a mounting frame 6131 fixedly connected to the inner keel 42, a bearing column 6132 is rotatably mounted on one side of the mounting frame 6131, a cross bar 6133 is fixedly connected to the arc surface of the bearing column 6132, one end of the cross bar 6133 is fixedly connected to a fixing column 6134, the fixing column 6134 is fixedly connected to one side of the positive electrode dust collecting plate 611, the overall center of gravity of the positive electrode dust collecting plate 611 and the eccentric component 613 is located on the side away from the negative charge component 63, a push block 621 is provided between the inner wall of the dust collecting cover 62 and the lowest positive electrode dust collecting plate 611, the push block 621 is used to support the positive electrode dust collecting plate 611 to tilt in the direction of the negative charge component 63; A plurality of positive electrode dust collecting plates 611 are suspended by the eccentric assembly 613 and are arranged adjacent to each other in the vertical direction.

[0033] Specifically, when multiple positive dust suction plates 611 are closely adjacent to each other in sequence, by correspondingly setting the connection positions of the bearing column 6132 and the mounting frame 6131, the multiple positive dust suction plates 611 are always in a parallel state. The positive dust suction plates 611 are suspended by the eccentric assembly 613 and pushed by the push block 621, the positive dust suction plates 611 tend to rotate toward the center of gravity. In this way, when the upper positive dust suction plate 611 scrapes the metal dust on the surface of the lower positive dust suction plate 611, it has more scraping force.

[0034] In the previous embodiment: the negative charge component 63 includes a spring tube 631 fixedly mounted on the upper surface of the hanging platform 21, a metal mesh 632 is elastically rolled up on the inner side of the spring tube 631, one end of the metal mesh 632 is fixedly connected to the lower surface of the dust cover 3, and the metal mesh 632 is connected to the negative power supply.

[0035] Specifically, when the hanging platform 21 moves up and down, the spring tube 631 can automatically elastically reel up the metal mesh 632 so that the metal mesh 632 remains taut and the metal dust comes into contact with it.

[0036] In the previous embodiment: an inclined baffle 622 is arranged on the inner side of the dust collecting hood 62, and the inclined baffle 622 is adapted to the lower side of multiple positive electrode dust collecting plates 611 in the direction of inclination of the stack inside the dust collecting hood 62, and a collecting box 623 which can be removed from the lower surface of the hanging platform 21 is arranged on the lower side of the dust collecting hood 62.

[0037] Specifically, the metal dust that enters the inner side of the hanging platform 21 slides into the inner side of the collecting box 623 from the surface of the inclined baffle 62. The inclined baffle 622 can prevent the laminar air in the accordion cover 4 from bringing out the metal dust in the dust collecting cover 62, and the collecting box 623 is detachably arranged on the lower surface of the hanging platform 21, so as to facilitate the timely cleaning of the metal dust stored inside.

[0038] Working principle: when the accordion cover 4 is pulled open, the positive electrode dust suction plate 611 is pulled open, and the metal mesh 632 is also pulled out. After the metal dust contacts the metal mesh 632, it is negatively charged and is immediately adsorbed on the surface of the positive electrode dust suction plate 611. When the accordion cover 4 is folded inside, the upper positive electrode dust suction plate 611 will scrape the surface of the lower positive electrode dust suction plate 611, and scrape the metal dust adsorbed on the surface into the dust collecting cover 62. For some of the metal dust that passes through the chain slot 31, the air pump 53 can suck the air carrying the metal dust into the dust removal box 54 through the horn cover 51. After the dust removal box 54 filters the metal dust, the clean air is discharged to the outside of the dust cover 3.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air conditioning device for a crane operating room, comprising a main beam (1); a lifting mechanism (2) for lifting objects on the lower side of the main beam (1); the lifting mechanism (2) comprising a crane group (23) on the lower side of the main beam (1); a hoist chain (22) connected to the lower side of the crane group (23); a hanging platform (21) connected to the lower side of the hoist chain (22); a hanging hook provided on the lower side of the hanging platform (21); a dust cover (3) provided on the outer shell of the crane group (23); a first dust removal mechanism (6) provided on the outer shell of the hoist chain (22); Features: A chain slot (31) for the hoist chain (22) to pass through is provided on the lower side of the dust cover (3); a second dust removal mechanism (5) for removing dust is provided in the dust cover (3) above the chain slot (31); and a first dust removal mechanism (6) for removing dust is provided on the inner side of the accordion cover (4); The second dust removal mechanism (5) comprises a horn cover (51) arranged above the chain slot (31), a dust removal box (54) fixedly installed inside the dust cover (3), a ventilation pipe (52) connected between the dust removal box (54) and the horn cover (51), and an air pump (53) connected to the ventilation pipe (52); The first dust removal mechanism (6) comprises a positive dust suction component (61) and a negative charge component (63) which are arranged vertically in the accordion cover (4); the negative charge component (63) is arranged between the positive dust suction component (61) and the hoist chain (22); the positive dust suction component (61) and the negative charge component (63) are respectively connected to a positive and negative power supply, and an electric field is formed between the positive dust suction component (61) and the negative charge component (63); a dust collecting cover (62) is arranged on the lower side of the positive dust suction component (61); The accordion cover (4) includes an outer keel (41) and an inner keel (42), and the positive electrode dust suction assembly (61) includes a positive electrode dust suction plate (611) swingably connected to the inner keel (42), and a plurality of positive electrode dust suction plates (611) are provided, and the plurality of positive electrode dust suction plates (611) are vertically arranged on the inner side of the dust cover (3) in a shingled manner, and a flexible wire (612) is arranged in series on one side of the plurality of positive electrode dust suction plates (611), and the flexible wire (612) is connected to a positive power supply.

2. An air conditioning device for a crane operating room according to claim 1, Features: The horn cover (51) is adapted to be arranged along the length direction of the chain slot (31), and two horn covers (51) are arranged symmetrically on both sides of the chain slot (31).

3. The air conditioning device for a crane operating room according to claim 1, Features: Draw ropes (72) are respectively arranged at the four corners of the upper surface of the hanging platform (21); a coil spring disk (71) for elastically winding up the draw rope (72) is fixedly mounted on the bottom surface of the dust cover (3); a through hole for the draw rope (72) to pass through is arranged on the lower surface of the dust cover (3); a limit ring (43) is fixedly arranged at the inner corner of the inner keel (42); and the hanging platform (21) movably passes through the limit ring (43).

4. The air conditioning device for a crane operating room according to claim 1, Features: The positive electrode dust collecting plate (611) comprises an insulating plate (6111), a metal plate (6112) is embedded in the insulating plate (6111) on a side close to the negative charge imparting component (63), an electrode connecting column (6114) is provided on a side of the insulating plate (6111) away from the metal plate (6112), the electrode connecting column (6114) is arranged on the upper side of the insulating plate (6111) and is electrically connected to the metal plate (6112), and the flexible wire (612) is connected to the electrode connecting column (6114).

5. An air conditioning device for a crane operating room according to claim 4, Features: The lower side of the metal plate (6112) has a length from the lower side of the insulating plate (6111), and the length is greater than the minimum height difference between two adjacent insulating plates (6111) when they are stacked.

6. An air conditioning device for a crane operating room according to claim 5, Features: A rubber scraper (6113) is provided on the lower surface of the insulating plate (6111).

7. The air conditioning device for a crane operating room according to claim 1, Features: An eccentric component (613) is connected between the positive electrode dust suction plate (611) and the inner keel (42), the eccentric component (613) comprising a mounting frame (6131) fixedly connected to the inner keel (42), a bearing column (6132) being rotatably mounted on one side of the mounting frame (6131), a cross bar (6133) being fixedly connected to the arc surface of the bearing column (6132), and a fixing column (6134) being fixedly connected to one end of the cross bar (6133). The fixed column (6134) is fixedly connected to one side of the positive electrode dust suction plate (611), and the overall center of gravity of the positive electrode dust suction plate (611) and the eccentric component (613) is located on the side away from the negative charge component (63). A push block (621) is provided between the inner wall of the dust collecting cover (62) and the lowest positive electrode dust suction plate (611), and the push block (621) is used to support the positive electrode dust suction plate (611) to tilt in the direction of the negative charge component (63).

8. An air conditioning device for a crane operating room according to claim 7, Features: The plurality of positive electrode dust collecting plates (611) are suspended by the eccentric assembly (613) and are arranged adjacent to each other in a vertical direction.

9. The air conditioning device for a crane operating room according to claim 1, Features: The negative charge imparting component (63) comprises a coiled spring barrel (631) fixedly mounted on the upper surface of the hanging platform (21), a metal mesh (632) being elastically rolled up inside the coiled spring barrel (631), one end of the metal mesh (632) being fixedly connected to the lower surface of the dust cover (3), and the metal mesh (632) being connected to a negative power supply.

10. The air conditioning device for a crane operating room according to claim 1, Features: An inclined baffle (622) is provided on the inner side of the dust collecting hood (62), and the inclined baffle (622) is adapted to the direction in which the lower sides of the plurality of positive electrode dust collecting plates (611) are tilted in the stack of tiles inside the dust collecting hood (62). A collection box (623) that can be removed from the lower surface of the hanging platform (21) is provided on the lower side of the dust collecting hood (62).

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