A movable crown block smoke collecting device

Abstract

The application provides a movable smoke collecting device of a crown block, which comprises a cuboid support arranged on a bridge of a crown block moving device, the cuboid support comprises an upper quadrilateral ring, a lower quadrilateral ring and first vertical columns connecting corresponding four corners of the upper quadrilateral ring and the lower quadrilateral ring, the movable smoke collecting device of the crown block is arranged below an existing smoke exhaust hood, thus avoiding that the existence of the crown block hinders the pollutant transport path and leads to a large amount of pollutant escaping and a rapid reduction of the exhaust efficiency, the first gear transmission mechanism and the second gear transmission mechanism are arranged above and below the cuboid support respectively, the expansion and contraction of upper and lower opening and closing plates can be controlled according to specific needs, the device has a certain flexibility, the purpose of improving the exhaust efficiency is achieved, the working process is not disturbed, and the technical problems of the prior art, i.e. the existence of the crown block hinders the pollutant transport path and leads to a large amount of pollutant escaping and a rapid reduction of the exhaust efficiency, are solved.

Description

Technical Field

[0001] This invention belongs to the field of industrial ventilation and relates to a smoke collection device, specifically a crane-mounted smoke collection device. Background Technology

[0002] With the rapid development of my country's manufacturing industry, the scale of industrial plants is constantly increasing, the intensity of indoor pollutant emission is increasing, and the sources of emission are increasing. Moreover, with the dual pressure of occupational health and atmospheric smog both indoors and outdoors, the problem of controlling indoor pollutants in large spaces is becoming increasingly prominent.

[0003] Large-space industrial plants typically employ large mobile overhead cranes for handling and operating heavy materials or equipment during production, making them indispensable equipment in industrial processes. However, the presence of these mobile overhead cranes is a significant reason why controlling indoor thermal pollution emissions in large-space industrial plants is difficult. This is mainly due to two reasons: First, the presence of mobile overhead cranes in tall, open spaces necessitates clearing the space above the pollution source to ensure their movement and operation. Exhaust hoods can only be installed above the cranes, requiring pollutants to undergo long-distance free diffusion and mixing before being captured by the hoods, significantly reducing exhaust efficiency and drastically increasing ventilation energy consumption. Second, pollution emissions from the pollution source usually occur during the crane's operation of the pollution source, such as in the metallurgical industry where overhead cranes are used for feeding, mixing, and slag removal. During crane operation, the pollution transport path between the pollution source and the roof exhaust hood is significantly obstructed, causing a large amount of pollutants to escape, leading to a rapid decrease in exhaust efficiency and rapid environmental degradation. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a crane-mounted smoke collection device to solve the technical problem in the existing technology that the crane obstructs the pollutant transport path, resulting in a large amount of pollutants escaping and a rapid decrease in sewage discharge efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A crane-mounted smoke collection device includes a cuboid support mounted on the bridge of the crane's moving device. The cuboid support includes an upper quadrilateral ring, a lower quadrilateral ring, and first columns connecting the four corresponding corners of the upper and lower quadrilateral rings. Four baffles are arranged around the circumference between the upper and lower quadrilateral rings, with two baffles perpendicularly intersecting the bridge, and crane trolley inlets and outlets respectively opened at the intersection positions on the two baffles. Each corner of the upper quadrilateral ring is equipped with a first gear transmission mechanism via two first gear support columns, and each corner of the lower quadrilateral ring is equipped with a second gear transmission mechanism via two second gear support columns.

[0007] Each of the aforementioned first gear transmission mechanisms includes two first bearings respectively fixedly mounted on two first gear support columns. An upper rotating shaft is rotatably mounted in a pair of first bearings that are closer together at two adjacent corners. Both ends of the upper rotating shaft extend out of the first bearings and are fixedly mounted with first rotating gears. The two first rotating gears at each corner mesh. An upper opening and closing plate is fixedly provided on the upper rotating shaft. Adjacent upper opening and closing plates are connected by a first flexible telescopic plate, so that the four upper opening and closing plates are connected to form a semi-flexible enclosure whose upper opening can be expanded to a certain extent. The bottom of the first flexible telescopic plate has a through hole for the first rotating gear.

[0008] One of the first gear transmission mechanisms is also provided with a first motor. The first motor is mounted on the upper quadrilateral ring between the first rotating gears by a fixing rod. The first output shaft of the first motor is perpendicularly connected to one of the first rotating gears.

[0009] Each of the aforementioned second gear transmission mechanisms includes two second bearings respectively fixedly mounted on two second gear support columns. A lower rotating shaft is rotatably mounted in a pair of second bearings that are closer together at two adjacent corners. Both ends of the lower rotating shaft extend out of the second bearings and are fixedly mounted with second rotating gears. Two first rotating gears located at each corner mesh. A lower opening and closing plate is fixedly provided on the lower rotating shaft. Adjacent lower opening and closing plates are connected by a second flexible telescopic plate, so that the four lower opening and closing plates are connected to form a semi-flexible enclosure whose lower opening can be expanded to a certain extent. The bottom of the second flexible telescopic plate has a second rotating gear through hole.

[0010] One of the second gear transmission mechanisms is also provided with a second motor. The second motor is mounted on the lower quadrilateral ring between the second rotating gears by a fixing rod. The second output shaft of the second motor is perpendicularly connected to one of the second rotating gears.

[0011] The baffle is provided with crane trolley inlets and outlets on both sides along the direction of the bridge frame, and each crane trolley inlet and outlet is equipped with a roller shutter door structure.

[0012] This invention also includes the following technical features:

[0013] The roller shutter door structure includes a support rod and two third bearings fixedly mounted on the upper quadrilateral ring by the support rod. A rotating shaft is provided inside the third bearing. One end of the rotating shaft extends out of one of the third bearings and is connected to a third motor. The roller shutter is mounted on the rotating shaft.

[0014] The roller shutter door structure has a pair of symmetrical rotating doors on both sides.

[0015] The revolving door is equipped with multiple pulleys on both its inner and outer sides.

[0016] The lower edge of the rotating door has a square hole.

[0017] Compared with the prior art, the beneficial technical effects of this invention are:

[0018] (I) By installing the crane-mounted smoke collection device of the present invention below the existing smoke hood, the large-scale escape of pollutants and the rapid reduction of sewage discharge efficiency caused by the crane obstructing the pollutant transport path are avoided. By setting the first gear transmission mechanism and the second gear transmission mechanism at the top and bottom of the cuboid support respectively, the opening and closing of the upper and lower opening and closing plates can be controlled according to specific needs, so that the device has a certain degree of flexibility. It achieves the purpose of improving sewage discharge efficiency without interfering with the operation process, and solves the technical problem in the prior art that the large-scale escape of pollutants and the rapid reduction of sewage discharge efficiency are caused by the crane obstructing the pollutant transport path.

[0019] (II) In this invention, only one motor is set in both the first gear transmission mechanism and the second gear transmission mechanism. While ensuring that the upper and lower opening and closing plates can be driven, energy saving is also achieved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a partial structural diagram of the present invention when unfolded;

[0022] Figure 3 This is a schematic diagram of a local structure during the contraction of the present invention;

[0023] Figure 4 This is a schematic diagram of the first gear transmission mechanism in this invention;

[0024] Figure 5 This is a schematic diagram of the first gear transmission mechanism in this invention without a first motor;

[0025] Figure 6 This is a schematic diagram of the second gear transmission mechanism in this invention;

[0026] Figure 7 This is a schematic diagram of the second gear transmission mechanism in this invention without a second motor;

[0027] Figure 8 This is another partial schematic diagram of the present invention;

[0028] Figure 9 This is a schematic diagram of the roller shutter door structure in this invention;

[0029] Figure 10 This is a schematic diagram of the structure of the revolving door in this invention.

[0030] The meanings of the labels in the figure are as follows: 1-Cable tray, 2-Cuboid support, 3-First gear support column, 4-First gear transmission mechanism, 5-Second gear support column, 6-Second gear transmission mechanism, 7-Roller shutter structure, 8-Revolving door, 9-Pulley, 10-Square hole, 11-Fence;

[0031] 201-Upper quadrilateral ring, 202-Lower quadrilateral ring, 203-First column, 204-Baffle, 205-Lifting trolley inlet and outlet;

[0032] 401-First bearing, 402-Upper rotating shaft, 403-First rotating gear, 404-Upper opening and closing plate, 405-First flexible telescopic plate, 406-First rotating gear through hole, 407-First motor, 408-Fixing rod, 409-First output shaft;

[0033] 601-Second bearing, 602-Lower rotating shaft, 603-Second rotating gear, 604-Lower opening and closing plate, 605-Second flexible telescopic plate, 606-Second rotating gear through hole, 607-Second motor, 608-Fixing rod, 609-Second output shaft;

[0034] 701-Support rod, 702-Third bearing, 703-Rotating shaft, 704-Third motor, 705-Roller blind.

[0035] The specific content of the present invention will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0036] It should be noted that the overhead crane movement device in this invention generally includes: a bridge frame, a trolley, a slide rail, slings and hooks, a protective fence, and an operator's compartment. The bridge frame is used for the movement of the bridge frame and its superstructure along the longitudinal direction of the factory building. The trolley is located above the bridge frame, with the slings and hooks connected to its lower part. The trolley and slings / hooks move laterally on the bridge frame as a whole via the slide rails. A protective fence is provided on the outside of the slide rails above the bridge frame, and the operator's compartment is located below one side of the bridge frame.

[0037] It should be noted that, unless otherwise specified, all components in this invention are those known in the art.

[0038] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0039] This invention provides a movable smoke collection device for overhead cranes, such as... Figures 1 to 10 As shown, a cuboid support 2 is installed on the bridge frame 1 of the overhead crane motion device. The cuboid support 2 includes an upper quadrilateral ring 201, a lower quadrilateral ring 202, and first columns 203 connecting the four corresponding corners of the upper quadrilateral ring 201 and the lower quadrilateral ring 202. Four baffles 204 are arranged around the upper quadrilateral ring 201 and the lower quadrilateral ring 202. Two of the baffles 204 intersect the bridge frame 1 perpendicularly, and the intersection positions on the two baffles 204 are respectively provided with crane trolley inlets and outlets 205. Each corner of the upper quadrilateral ring 201 is equipped with a first gear transmission mechanism 4 through two first gear support columns 3, and each corner of the lower quadrilateral ring 202 is equipped with a second gear transmission mechanism 6 through two second gear support columns 5.

[0040] Each first gear transmission mechanism 4 includes two first bearings 401 fixedly mounted on two first gear support columns 3. An upper rotating shaft 402 is rotatably mounted in a pair of first bearings 401 that are closer together at two adjacent corners. Both ends of the upper rotating shaft 402 extend out of the first bearings 401 and are fixedly mounted with first rotating gears 403. The two first rotating gears 403 at each corner mesh. An upper opening and closing plate 404 is fixedly provided on the upper rotating shaft 402. Adjacent upper opening and closing plates 404 are connected by a first flexible telescopic plate 405, so that the four upper opening and closing plates 404 are connected to form a semi-flexible enclosure whose upper opening can be expanded to a certain extent. A first rotating gear through hole 406 is provided at the bottom of the first flexible telescopic plate 405.

[0041] One of the first gear transmission mechanisms 4 is also equipped with a first motor 407. The first motor 407 is mounted on the upper quadrilateral ring 201 between the first rotating gears 403 via a fixing rod 408. The first output shaft 409 of the first motor 407 is perpendicularly connected to one of the first rotating gears 403.

[0042] Each second gear transmission mechanism 6 includes two second bearings 601 fixedly mounted on two second gear support columns 5. A lower rotating shaft 602 is rotatably mounted in a pair of second bearings 601 that are closer together at two adjacent corners. Both ends of the lower rotating shaft 602 extend out of the second bearings 601 and are fixedly mounted with second rotating gears 603. The two first rotating gears 603 at each corner mesh. A lower opening plate 604 is fixedly provided on the lower rotating shaft 602. Adjacent lower opening plates 604 are connected by a second flexible telescopic plate 605, so that the four lower opening plates 604 are connected to form a semi-flexible enclosure whose lower opening can be expanded to a certain extent. A second rotating gear through hole 606 is provided at the bottom of the second flexible telescopic plate 605.

[0043] One of the second gear transmission mechanisms 6 is also equipped with a second motor 607. The second motor 607 is mounted on the lower quadrilateral ring 202 between the second rotating gears 603 via a fixing rod 608. The second output shaft 609 of the second motor 607 is perpendicularly connected to one of the second rotating gears 603.

[0044] The baffle 204 has crane trolley inlets and outlets 205 on both sides along the direction of the bridge frame 1, and each crane trolley inlet and outlet 205 is equipped with a roller shutter door structure 7.

[0045] In the above technical solution, when the smoke collection device is needed to assist the roof exhaust hood in smoke extraction, the first motor 407 and the second motor 607 are started simultaneously. The first output shaft 409 of the first motor 407 drives the upper rotating shaft 402 to rotate, so that the upper opening plate 404 is parallel to the baffle 204 and the first flexible telescopic plate 405 is unfolded. The second output shaft 609 of the second motor 607 drives the lower rotating shaft 602 to rotate, so that the lower opening plate 604 is parallel to the baffle 204 and the first flexible telescopic plate 605 is unfolded. At the same time, it works with the rotating door 8 and the roller shutter structure 7 to form an annular sealed space, so that most of the smoke below can enter the roof exhaust hood.

[0046] When the smoke collection device is not required to assist the roof exhaust hood in smoke extraction, the first motor 407 and the second motor 607 are started simultaneously. The first output shaft 409 of the first motor 407 drives the upper rotating shaft 402 to rotate, so that the upper opening and closing plate 404 is perpendicular to the baffle 204, and the first flexible telescopic plate 405 retracts. The second output shaft 609 of the second motor 607 drives the lower rotating shaft 602 to rotate, so that the lower opening and closing plate 604 is perpendicular to the baffle 204, and the first flexible telescopic plate 605 retracts. The roller shutter 705 of the roller shutter door structure 7 in the inlet and outlet 205 of the crane trolley is retracted to a height that does not interfere with the operation. At this time, the trolley can pass freely, and the rotating door 8 opens and closes as the trolley moves.

[0047] In the above technical solution, by setting the overhead crane movable smoke collection device below the existing smoke hood, the problem of large-scale pollutant escape and rapid reduction in sewage discharge efficiency caused by the obstruction of the pollutant transport path due to the presence of the overhead crane is avoided. By setting the first gear transmission mechanism and the second gear transmission mechanism at the top and bottom of the cuboid support respectively, the opening and closing of the upper and lower opening and closing plates can be controlled according to specific needs, making the device flexible. This achieves the purpose of improving sewage discharge efficiency without interfering with the operation process, and solves the technical problem in the prior art of large-scale pollutant escape and rapid reduction in sewage discharge efficiency due to the obstruction of the pollutant transport path by the overhead crane.

[0048] Furthermore, in this invention, only one motor is provided in both the first gear transmission mechanism 4 and the second gear transmission mechanism 5, which achieves energy saving while ensuring that the upper opening and closing plate 404 and the lower opening and closing plate 604 can be driven.

[0049] Specifically, the roller shutter door structure 7 includes a support rod 701 and two third bearings 702 fixedly mounted on the upper quadrilateral ring 201 via the support rod 701. A rotating shaft 703 is provided inside the third bearing 702. One end of the rotating shaft 703 extends out of one of the third bearings 702 and is connected to a third motor 704. A roller shutter 705 is provided on the rotating shaft 703. It is simple, practical, and has good sealing performance.

[0050] Specifically, such as Figure 10 As shown, a pair of rotating doors 8 are symmetrically arranged on both sides of the roller shutter structure 7. The rotating doors 8 can fill the gap between the fence 11 in the crane movement device and the roller shutter 705 in the roller shutter structure 7, ensuring the sealing of the crane trolley inlet and outlet 205 when the smoke collection work is carried out.

[0051] Specifically, multiple pulleys 9 are provided on both the inner and outer sides of the rotating door 8 to prevent the trolley from directly contacting the rotating door 8 when it enters or exits the crane trolley inlet / outlet 205, thus avoiding wear and tear caused by collision between the rotating door 8 and the trolley.

[0052] Specifically, a square hole 10 is provided on the edge of the lower end face of the rotating door 8 to adapt to the structure of the cable tray 1 and ensure the sealing of the device.

Claims

1. A movable crown catch device for a crown block, characterized in that The utility model relates to a kind of crane motion device, including the cuboid support (2) set on the bridge (1) of crane motion device, the cuboid support (2) includes upper quadrilateral ring (201), lower quadrilateral ring (202) and the first column (203) of connecting corresponding four corners of upper quadrilateral ring (201) and lower quadrilateral ring (202), four baffles (204) are arranged between the upper quadrilateral ring (201) and the lower quadrilateral ring (202) one week, two baffles (204) are vertically intersected with bridge (1) and the position of the intersection on the two baffles (204) is respectively opened with trolley import and export (205);Every corner of the upper quadrilateral ring (201) is installed with first gear transmission mechanism (4) by two first gear support columns (3), every corner of the lower quadrilateral ring (202) is installed with second gear transmission mechanism (6) by two second gear support columns (5); Every the first gear transmission mechanism (4) includes two first bearings (401) respectively fixedly installed on two first gear support columns (3), rotatable mounting is carried out on a pair of first bearings (401) in adjacent two corners distance closer, and upper rotating shaft (402) is arranged on the first gear transmission mechanism (4);The both ends of the upper rotating shaft (402) are stretched out first bearing (401) and fixedly installed first rotating gear (403), and two first rotating gears (403) located in every corner are engaged;Upper opening and closing plate (404) is fixedly arranged on the upper rotating shaft (402), and adjacent upper opening and closing plate (404) is connected by first flexible expansion plate (405), so that four upper opening and closing plates (404) are connected into a semi-flexible enclosure whole with upper end opening being expandable to a certain extent;The bottom of the first flexible expansion plate (405) is provided with first rotating gear through hole (406); One of the first gear transmission mechanism (4) is further provided with first motor (407), the first motor (407) is installed on the upper quadrilateral ring (201) between first rotating gear (403) by fixed rod (408), and the first output shaft (409) of the first motor (407) is connected with one of first rotating gear (403) vertically. Each of the second gear transmission mechanisms (6) comprises two second bearings (601) fixedly installed on two second gear support columns (5) respectively, a lower rotating shaft (602) is rotatably installed in a pair of second bearings (601) adjacent to each other at a shorter distance, both ends of the lower rotating shaft (602) extend out of the second bearings (601) and are fixedly installed with second rotating gears (603), the two second rotating gears (603) located at each corner are engaged; a lower opening and closing plate (604) is fixedly arranged on the lower rotating shaft (602), adjacent lower opening and closing plates (604) are connected through a second flexible expansion plate (605); so that the four lower opening and closing plates (604) are connected into a semi-flexible fence whole with an open lower end that can be expanded and opened to a certain extent; a second rotating gear passing hole (606) is formed in the bottom of the second flexible expansion plate (605); One of the second gear transmission mechanisms (6) is further provided with a second motor (607), the second motor (607) is installed on a lower quadrilateral ring (202) between the second rotating gears (603) through a fixed rod (608), and a second output shaft (609) of the second motor (607) is connected with one of the second rotating gears (603) perpendicularly; The baffle (204) is provided with a crane entrance and exit (205) on both sides along the direction of the bridge (1), and each crane entrance and exit (205) is provided with a roller shutter door structure (7); The roller shutter door structure (7) comprises a support rod (701) and two third bearings (702) fixedly installed on the upper quadrilateral ring (201) through the support rod (701), a rotating shaft (703) is arranged in the third bearing (702), one end of the rotating shaft (703) extends out of one of the third bearings (702) and is connected with a third motor (704), and a roller shutter (705) is arranged on the rotating shaft (703); The roller shutter door structure (7) is symmetrically provided with a pair of rotating doors (8) on both sides; The inner side and the outer side of the rotating door (8) are provided with a plurality of pulleys (9); The edge of the lower end face of the rotating door (8) is provided with a square hole (10).

Images