A shipyard sectional construction assembly line integrated ventilation dust removal system

Abstract

The utility model discloses a kind of shipyard segmented construction assembly line integrated ventilation dust removal systems, it is related to shipbuilding technical field, and it include: ventilation duct is installed on the wall of assembly line workshop, first drive motor is equipped in the coaxial center of ventilation duct cavity, first drive motor is connected with ventilation duct inner wall by fixed plate, the output shaft of first drive motor is equipped with fan blade adjusting mechanism, ventilation duct cavity is also equipped with air duct cleaning mechanism and fan blade cleaning mechanism;The utility model is adjusted by fan blade adjusting mechanism to drive ventilation fan blade to carry out angle, can be adjusted ventilation fan blade inclination according to dust concentration in real time, to flexibly control air volume and airflow direction, adapt to different working condition requirement;Air duct cleaning mechanism can efficiently scrape off the caked dust adhered on the inner wall of pipeline, especially the adherent of higher humidity, fan blade cleaning mechanism can remove the fibrous dust accumulated on the surface of ventilation fan blade, avoid dust accumulation to cause ventilation fan blade dynamic balance failure.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding technology, and in particular to an integrated ventilation and dust removal system for a shipyard section construction assembly line. Background Technology

[0002] With the development of modern shipbuilding methods, the modular assembly line system for shipyard construction has become the mainstream method for large ship manufacturing due to its advantages of high efficiency, standardization, and strong controllability. However, the efficient operation of this system, especially in key processes such as welding, grinding, and cutting, generates a large amount of metal dust and fibrous dust. This dust is extremely easy to disperse and suspend within large modular assembly workshops.

[0003] The segmented construction area is vast, resulting in a wide dust dispersion range. The concentration of welding fumes inside the compartments often exceeds 100 mg / m³, far exceeding national occupational health standards. If not effectively and promptly removed, this poses a serious threat to the health of assembly line workers. Simultaneously, the continuous accumulation and agglomeration of dust on the inner walls of ventilation ducts leads to a sharp increase in air resistance, severely reducing ventilation and dust removal efficiency and becoming a bottleneck restricting the continuous and efficient operation of the assembly line.

[0004] In addition, the humidity in coastal shipyards is consistently above 70%. In such high-humidity environments, dust easily combines with moisture to form sticky, hardened lumps that stubbornly adhere to the inner walls of ventilation ducts and the surfaces of ventilation fan blades. This not only further obstructs the airflow and significantly reduces air volume, but also causes the dynamic balance of ventilation fan blades to fail, increasing equipment failure rates and affecting the stable operation of the production line.

[0005] Existing ventilation and dust removal equipment is not compatible with the needs of intelligent production lines: most are independent devices with single functions, crude adjustment, and reliance on manual maintenance; and they cannot adjust the air volume and airflow direction according to the real-time changes in dust concentration generated at different work stations and processes in the production line, making it difficult to achieve on-demand ventilation and energy-saving operation; cleaning dust clumps on the inner wall of the pipes and dust on the surface of the fan blades usually requires stopping the machine and relying on manual entry into the pipes, which is labor-intensive and dangerous.

[0006] Therefore, an integrated ventilation and dust removal system for shipyard section construction assembly lines is proposed. This system can be seamlessly integrated into the intelligent assembly line operation system for shipyard section construction, effectively solving the above-mentioned pain points, ensuring efficient, stable, safe and continuous operation of the assembly line, and reducing manual intervention and maintenance costs. Utility Model Content

[0007] To achieve the above objectives, this utility model provides an integrated ventilation and dust removal system for shipyard section construction lines. The utility model provides the following technical solution, including:

[0008] A ventilation duct installed on the wall of the assembly line workshop has a first drive motor coaxially mounted in the cavity of the ventilation duct. The first drive motor is connected to the inner wall of the ventilation duct through a fixing plate. The output shaft of the first drive motor is equipped with a fan blade adjustment mechanism. The ventilation duct cavity is also equipped with an air duct cleaning mechanism and a fan blade cleaning mechanism.

[0009] Furthermore, the fan blade adjustment mechanism includes: a fixed housing connected to one end of the output shaft of the first drive motor, a second drive motor installed in the inner cavity of the fixed housing, a drive gear shaft connected to the output shaft of the second drive motor, and at least three driven gear shafts circumferentially distributed around the drive gear shaft; the driven gear shafts mesh with the drive gear shafts for transmission, and one end of the driven gear shaft is provided with a connecting rod, the other end of the connecting rod passing through the outside of the fixed housing and connected to the ventilation fan blades.

[0010] Furthermore, the air duct cleaning mechanism includes:

[0011] A symmetrical and coaxial sliding rail seat is provided on the inner wall of the ventilation duct cavity. A first sliding groove is provided on both sides of the sliding rail seat. An annular scraper adapted to the inner wall of the ventilation duct slides in the first sliding groove. A telescopic cylinder is also provided at the front end of the ventilation duct cavity. The telescopic end of the telescopic cylinder is connected to the annular scraper.

[0012] Furthermore, each of the sliding rail seats is provided with a second sliding groove on the side facing the ventilation fan blade. The fan blade cleaning mechanism includes: two symmetrical sliding blocks that are slidably disposed in the second sliding groove, a straight scraper connected to one end of the sliding block, and a ball screw that is rotatably disposed at both ends on the sliding rail seat. The ball screw is threadedly connected to the middle of the two sliding blocks. A third drive motor is also provided on one end of the sliding rail seat, and the output end of the third drive motor is connected to one end of the ball screw.

[0013] Furthermore, the number of driven gear shafts is three.

[0014] Furthermore, the ventilation fan blades are planar.

[0015] Furthermore, both the annular scraper and the straight scraper have ceramic scraper blades on their outer edges.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0017] This utility model uses a second drive motor to drive the active gear shaft, which in turn drives three driven gear shafts to rotate synchronously. This causes the ventilation fan blades at the outer end of the connecting rod to adjust their angle. The angle of the ventilation fan blades can be adjusted in real time according to the dust concentration, thereby flexibly controlling the air volume and airflow direction to adapt to different working conditions.

[0018] This utility model's ventilation duct cleaning mechanism uses an annular scraper that contacts the inner wall of the ventilation duct. A telescopic cylinder pushes the scraper to move axially along the sliding rail, which can efficiently scrape off clumps of dust adhering to the inner wall of the duct, especially adhesive substances when the humidity is high. Each stroke of the scraper covers the entire length of the duct, and the cleaning cycle can be set for automatic cleaning.

[0019] In this invention, the fan blade cleaning mechanism is driven by a third drive motor to rotate the ball screw in both directions, causing two sliding blocks to slide in opposite directions along the second sliding groove. At the same time, the angle of the ventilation fan blade is adjusted to be parallel to the straight scraper, so that the straight scraper is in close contact with the surface of the ventilation fan blade. When the ventilation fan blade rotates, the relative movement between the straight scraper and the surface of the ventilation fan blade realizes the automatic removal of fibrous dust, avoiding dust accumulation that could lead to the failure of the dynamic balance of the ventilation fan blade. The flat surface of the ventilation fan blade is smooth and has no concave structure, which can reduce the dust adhesion area. When cleaning with the straight scraper, the resistance is smaller, and the manufacturing cost is lower than that of curved fan blades. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0021] Figure 1 This is a first structural schematic diagram of the entire utility model;

[0022] Figure 2 This is a second structural schematic diagram of the entire utility model;

[0023] Figure 3 This is a cross-sectional view of the present invention;

[0024] Figure 4 This is a schematic diagram of the installation structure of the fan blade adjustment mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the installation structure of the ventilation duct cleaning mechanism of this utility model;

[0026] Figure 6 This is a schematic diagram of the installation structure of the fan blade cleaning mechanism in this utility model.

[0027] In the diagram: 1. Ventilation duct; 2. First drive motor; 3. Fixing plate; 4. Fan blade adjustment mechanism; 41. Fixed housing; 42. Second drive motor; 43. Drive gear shaft; 44. Driven gear shaft; 45. Connecting rod; 46. Ventilation fan blade; 5. Air duct cleaning mechanism; 51. Sliding rail seat; 52. First slide groove; 53. Annular scraper; 54. Telescopic cylinder; 55. Second slide groove; 6. Fan blade cleaning mechanism; 61. Sliding block; 62. Straight scraper; 63. Ball screw; 64. Third drive motor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1 to 6 The technical solution provided by this utility model is: an integrated ventilation and dust removal system for shipyard section construction lines, comprising:

[0030] A ventilation duct 1 is installed on the wall of the assembly line workshop. A first drive motor 2 is coaxially arranged in the cavity of the ventilation duct 1. The first drive motor 2 is connected to the inner wall of the ventilation duct 1 through a fixing plate 3. The output shaft of the first drive motor 2 is provided with a fan blade adjustment mechanism 4. The cavity of the ventilation duct 1 is also provided with an air duct cleaning mechanism and a fan blade cleaning mechanism.

[0031] By coaxially mounting the first drive motor 2 in the center of the ventilation duct 1, the airflow distribution is ensured to be uniform during the operation of the fan blade adjustment mechanism 4. The fixed plate 3 ensures stability while reducing obstruction of the airflow. The fan blade adjustment mechanism 4 is used to adjust the angle of the ventilation fan blade 46 as needed. Increasing the angle of the ventilation fan blade 46 can increase the air pushing area and increase the air volume per unit time. For example, when the humidity is high in coastal shipyards, appropriately increasing the angle can accelerate the airflow circulation and reduce moisture retention. At night or during periods of low dust concentration, decreasing the angle of the ventilation fan blade 46 reduces the motor load and energy consumption.

[0032] The duct cleaning mechanism is used to remove dust clumps adhering to the inner wall of the ventilation duct 1, especially to deal with the adhesive substances formed by the combination of dust and moisture in high humidity environments; the fan blade cleaning mechanism is used to remove fibrous dust and fine particles adhering to the surface of the ventilation fan blades 46, and maintain the dynamic balance and aerodynamic efficiency of the ventilation fan blades 46.

[0033] In a preferred embodiment, the fan blade adjustment mechanism 4 includes: a fixed housing 41 connected to one end of the output shaft of the first drive motor 2; a second drive motor 42 installed in the inner cavity of the fixed housing 41; a drive gear shaft 43 connected to the output shaft of the second drive motor 42; and at least three driven gear shafts 44 circumferentially distributed around the drive gear shaft 43. In this embodiment, the number of driven gear shafts 44 is three, and a three-set evenly distributed structure of driven gear shafts 44 is adopted to ensure that the force is balanced when the ventilation fan blades 46 are adjusted, and at the same time, a 120° symmetrical airflow distribution is formed to improve the dust removal coverage. The driven gear shafts 44 mesh with the drive gear shafts 43 for transmission. One end of the driven gear shaft 44 is provided with a connecting rod 45, and the other end of the connecting rod 45 passes through the outside of the fixed housing 41 and is connected to the ventilation fan blades 46.

[0034] The second drive motor 42 drives the active gear shaft 43, which in turn drives the three driven gear shafts 44 to rotate synchronously, thereby driving the ventilation fan blades 46 at the outer end of the connecting rod 45 to adjust the angle. The tilt angle of the ventilation fan blades 46 can be adjusted in real time according to the dust concentration (within ±30° range), so as to flexibly control the air volume and airflow direction to adapt to different working conditions.

[0035] In a preferred embodiment, the duct cleaning mechanism includes:

[0036] A sliding rail seat 51 is symmetrically and coaxially disposed on the inner wall of the ventilation duct 1 cavity. A first sliding groove 52 is provided on both sides of the sliding rail seat 51. An annular scraper 53 adapted to the inner wall of the ventilation duct 1 is slidably disposed in the first sliding groove 52. A telescopic cylinder 54 is also provided at the front end of the ventilation duct 1 cavity. The telescopic end of the telescopic cylinder 54 is connected to the annular scraper 53.

[0037] The outer edge of the annular scraper 53 contacts the inner wall of the ventilation duct 1. The scraper is pushed to move axially along the sliding rail seat 51 by the telescopic cylinder 54. It can efficiently scrape off the clumps of dust adhering to the inner wall of the duct, especially the sticky substances when the humidity is high. Each stroke of the scraper covers the entire length of the duct, and the cleaning cycle can be set to once every 2 hours.

[0038] In a preferred embodiment, any one of the sliding rail seats 51 is provided with a second sliding groove 55 on the side facing the ventilation fan blade 46. The fan blade cleaning mechanism includes: two symmetrical sliding blocks 61 slidably disposed in the second sliding groove 55, a straight scraper 62 connected to one end of the sliding block 61, and a ball screw 63 rotatably disposed at both ends on the sliding rail seat 51. The ball screw 63 is threadedly connected to the middle of the two sliding blocks 61. A third drive motor 64 is also provided on one end of the sliding rail seat 51. The output end of the third drive motor 64 is connected to one end of the ball screw 63.

[0039] In this preferred embodiment, the ventilation fan blade 46 is planar.

[0040] The fan blade cleaning mechanism drives the ball screw 63 to rotate forward and backward via the third drive motor 64, causing the two sliding blocks 61 to slide in opposite directions along the second slide groove 55. At the same time, it adjusts the angle of the ventilation fan blade 46 to be parallel to the straight scraper 62, so that the straight scraper 62 is in close contact with the surface of the ventilation fan blade 46. When the ventilation fan blade 46 rotates, the relative movement between the straight scraper 62 and the surface of the ventilation fan blade 46 realizes the automatic removal of fibrous dust, avoiding dust accumulation that could lead to dynamic imbalance of the ventilation fan blade 46. The flat surface of the ventilation fan blade 46 is smooth and has no concave structure, which can reduce the dust adhesion area. When cleaning with the straight scraper 62, the resistance is smaller, and the manufacturing cost is lower than that of curved fan blades.

[0041] In this preferred embodiment, both the annular scraper 53 and the straight scraper 62 are provided with ceramic scraper blades on their outer edges. The hardness and wear resistance of the ceramic scraper blades are several times that of ordinary steel scraper blades, which can effectively cope with the wear of metal dust (iron powder, welding slag) and at the same time avoid the generation of sparks during scraping, thus meeting the explosion-proof requirements of shipyards.

[0042] Working principle:

[0043] Ventilation and dust removal: The first drive motor 2 drives the ventilation fan blades 46 to rotate at high speed. The second drive motor 42 drives the active gear shaft 43, which in turn drives the three driven gear shafts 44 to rotate synchronously. This causes the ventilation fan blades 46 at the outer end of the connecting rod 45 to adjust their angle, forming a strong directional airflow that draws dust from the workshop into the ventilation duct 1.

[0044] Duct self-cleaning: The telescopic cylinder 54 periodically pushes the scraper to move axially along the sliding rail seat 51, scraping off the clumps of dust and discharging it through the bottom slag discharge port or through the ventilation fan blades 46.

[0045] Self-cleaning fan blades: When the ventilation fan blades 46 need to be cleaned, the ball screw 63 is driven by the third drive motor 64, which drives the two sliding blocks 61 to move closer to the ventilation fan blades 46 along the second slide groove 55. At the same time, the angle of the ventilation fan blades 46 is adjusted to be parallel to the straight scraper 62 by the fan blade adjustment mechanism, and the straight scraper 62 is made to be in close contact with the surface of the ventilation fan blades 46. When the ventilation fan blades 46 rotate, the fibrous dust accumulated on the surface of the ventilation fan blades 46 can be automatically removed, keeping the ventilation fan blades 46 clean.

[0046] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An integrated ventilation and dust removal system for a shipyard section construction assembly line, comprising ventilation ducts (1) installed on the walls of the assembly line workshop, characterized in that: The ventilation duct (1) cavity is coaxially provided with a first drive motor (2), the first drive motor (2) is connected to the inner wall of the ventilation duct (1) through a fixing plate (3), the output shaft of the first drive motor (2) is provided with a fan blade adjustment mechanism (4), and the ventilation duct (1) cavity is also provided with a duct cleaning mechanism (5) and a fan blade cleaning mechanism (6).

2. The integrated ventilation and dust removal system for a shipyard section construction line according to claim 1, characterized in that: The fan blade adjustment mechanism (4) includes: a fixed housing (41) connected to one end of the output shaft of the first drive motor (2), a second drive motor (42) installed in the cavity of the fixed housing (41), a drive gear shaft (43) connected to the output shaft of the second drive motor (42), and at least three driven gear shafts (44) distributed circumferentially around the drive gear shaft (43); the driven gear shaft (44) meshes with the drive gear shaft (43) for transmission, and one end of the driven gear shaft (44) is provided with a connecting rod (45), and the other end of the connecting rod (45) passes through the outside of the fixed housing (41) and is connected to a ventilation fan blade (46).

3. The integrated ventilation and dust removal system for a shipyard section construction line according to claim 2, characterized in that: The air duct cleaning mechanism (5) includes: A sliding rail seat (51) is symmetrically and coaxially arranged on the inner wall of the ventilation duct (1). A first sliding groove (52) is provided on both sides of the sliding rail seat (51). An annular scraper (53) adapted to the inner wall of the ventilation duct (1) is slidably arranged in the first sliding groove (52). A telescopic cylinder (54) is also provided at the front end of the ventilation duct (1). The telescopic end of the telescopic cylinder (54) is connected to the annular scraper (53).

4. The integrated ventilation and dust removal system for a shipyard section construction line according to claim 3, characterized in that: A second groove (55) is provided on the side of any of the sliding rail seats (51) facing the ventilation fan blade (46). The fan blade cleaning mechanism (6) includes: two symmetrical sliding blocks (61) slidably disposed in the second groove (55), a straight scraper (62) connected to one end of the sliding block (61), and a ball screw (63) rotatably disposed on the sliding rail seat (51) at both ends. The ball screw (63) is threadedly connected to the middle of the two sliding blocks (61). A third drive motor (64) is also provided on one end of the sliding rail seat (51). The output end of the third drive motor (64) is connected to one end of the ball screw (63).

5. The integrated ventilation and dust removal system for a shipyard section construction line according to claim 2, characterized in that: The number of driven gear shafts (44) is three.

6. The integrated ventilation and dust removal system for a shipyard section construction line according to claim 2, characterized in that: The ventilation fan blades (46) are planar.

7. The integrated ventilation and dust removal system for a shipyard section construction line according to claim 4, characterized in that: Both the annular scraper (53) and the straight scraper (62) have ceramic scraper blades on their outer edges.

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