Brake device for fan maintenance

Abstract

The utility model relates to a brake device for fan maintenance, relates to the technical field of fan maintenance, and aims to solve the problems of long fan maintenance time and low working efficiency, the brake device comprises a cross beam frame, a brake mechanism is arranged on the cross beam frame, and the brake mechanism comprises a fixed arc plate, a movable arc plate and a pressure plate frame; one end of the pressure plate frame is hinged to the cross beam frame, the other end of the pressure plate frame is provided with a turn buckle used for adjusting the cross beam frame, the movable arc plate is hinged to the side, close to the cross beam frame, of the pressure plate frame, the fixed arc plate is connected to the cross beam frame, and the fixed arc plate corresponds to the movable arc plate. A friction area for braking of a fan coupler is formed between the fixed arc plate and the movable arc plate, and a supporting leg assembly is arranged at the bottom of the cross beam frame. The device has the advantages of being easy and convenient to operate, improving the overhaul work efficiency and being flexible in adjustment.

Description

Technical Field

[0001] The present application relates to the technical field of fan maintenance, and in particular to a brake device for fan maintenance. Background Art

[0002] In the steel industry, fans are key power equipment and their importance is self-evident. Fans are responsible for providing the necessary ventilation, cooling, gas transportation and other key functions for the steel production process. Their continuous and stable operation is directly related to the efficiency and safety of the entire production line. However, in the daily maintenance and overhaul of fans, we are faced with a technical problem that needs to be solved urgently.

[0003] In the related art, when the fan needs necessary inspection or maintenance, although the equipment has been powered off, due to the huge inertia of the fan impeller itself and the influence of external factors such as the chimney effect, the impeller cannot stop running completely immediately; this means that before the maintenance personnel enter the work area, they need to wait for a long time to ensure that the impeller stops completely, which not only seriously affects the inspection progress and wastes inspection time, but also greatly reduces work efficiency. In severe cases, it may cause production to not operate normally, so it needs to be improved. Utility Model Content

[0004] In order to solve the problem of long maintenance time and low working efficiency of fans, the present application provides a brake device for fan maintenance.

[0005] The present application provides a brake device for fan maintenance using the following technical solution:

[0006] A brake device for fan maintenance comprises a cross beam frame, on which a brake mechanism is arranged, the brake mechanism comprises a fixed arc plate, a movable arc plate and a pressure plate frame, one end of the pressure plate frame is hingedly arranged on the cross beam frame, the other end of the pressure plate frame is provided with a basket bolt for adjusting the cross beam frame, the movable arc plate is hingedly arranged on a side of the pressure plate frame close to the cross beam frame, the fixed arc plate is connected to the cross beam frame, the fixed arc plate corresponds to the movable arc plate, a friction area for braking a fan coupling is formed between the fixed arc plate and the movable arc plate, and a support leg assembly is arranged at the bottom of the cross beam frame.

[0007] Because maintenance personnel need to wait for a long time to ensure that the impeller stops completely before entering the work area, it not only seriously affects the maintenance progress, wastes maintenance time, and greatly reduces work efficiency, but also may cause production to not operate normally in severe cases; by adopting the above technical scheme, including a beam frame, a brake mechanism is installed on the beam frame, and the brake mechanism includes a fixed arc plate, a movable arc plate and a pressure plate frame; before the fan needs to be repaired, the brake device is placed near the fan coupling in advance to ensure that the fixed arc plate corresponds to the outer edge of the coupling, the basket bolts are loosened, and the angle of the pressure plate frame is adjusted to maintain an appropriate gap between the movable arc plate and the coupling. When the fan needs to be repaired and the impeller needs to stop rotating, the basket bolts are gradually tightened to make the movable arc plate The arc plate gradually approaches the coupling until it reaches a predetermined contact pressure, and friction is generated with the inner side of the coupling under the action of the movable arc plate and the fixed arc plate, thereby achieving a deceleration and braking effect. At the same time, the deceleration of the coupling is continuously observed, and the tightness of the basket bolt is adjusted in time as needed to optimize the braking effect. If couplings of different sizes are encountered, the basket bolts can also be adjusted to adapt to ensure that a good contact effect is always maintained between the movable arc plate and the coupling. Settings such as the crossbeam frame and the brake mechanism can help achieve a rapid deceleration and braking effect, greatly shortening the time waiting for the impeller to stop and ensuring normal production operation. It is easy to operate, improves maintenance efficiency, and is flexible to adjust, and can adapt to couplings of different sizes, enhancing its versatility and practicality.

[0008] Optionally, both the crossbeam frame and the pressure plate frame are provided with ears for fixing basket bolts, the two ears are respectively connected to the crossbeam frame and the pressure plate frame, and the two ends of the basket bolt are respectively connected to the two ears.

[0009] By adopting the above technical solution, the two lifting ears are respectively installed on the crossbeam frame and the pressure plate frame; the setting of the lifting ears enhances the stability of the installation of the basket bolt, ensuring that the basket bolt will not loosen or move during the braking process, while making the installation and disassembly of the basket bolt simple and convenient, reducing the difficulty of maintenance.

[0010] Optionally, the hinged end of the pressure plate frame is provided with a hinge assembly, and the hinge assembly includes two hinge seats, both of which are connected to the crossbeam frame, and the two hinge seats are respectively arranged on both sides of the pressure plate frame, and the pressure plate frame is hinged on the two hinge seats.

[0011] By adopting the above technical solution, the articulated assembly is installed at the articulated end of the pressure plate frame, and the articulated assembly includes two articulated seats. Through the setting of the two articulated seats, a stable support and rotation point can be provided for the pressure plate frame, making the pressure plate frame more stable when adjusting the angle, reducing the possibility of shaking and deviation, thereby improving the stability and reliability of the braking device.

[0012] Optionally, two connecting plates are provided at the hinged end of the pressure plate frame, the two connecting plates correspond to two hinged seats respectively, and the connecting plates are hingedly provided on the hinged seats.

[0013] By adopting the above technical solution, the connecting plate is welded and fixed on the pressure plate frame, and the pressure plate frame is hinged on the hinge seat through the connecting plate; through the setting of the connecting plate, it can withstand greater force and torque, which can significantly improve the strength and stability of the connection, ensuring that the hinged structure is not easily damaged or deformed during use, thereby extending the service life.

[0014] Optionally, a pin shaft for connection is provided between the two hinge seats, and the two connecting plates are rotatably connected to the pin shaft.

[0015] By adopting the above technical solution, the pin shaft is installed between the two hinged seats; through the setting of the pin shaft, the connection between the connecting plate and the hinged seat is ensured to be stable and reliable, and the force applied to the pressure plate frame can be evenly transmitted to the two hinged seats, reducing the possibility of force concentration and local deformation of the hinged seat, thereby improving the stability and reliability of the entire structure.

[0016] Optionally, the pressure plate frame is provided with two movable hinge seats for mounting the movable arc plate, the two movable hinge seats are respectively arranged on both sides of the movable arc plate, and the movable arc plate is hingedly connected to the two movable hinge seats.

[0017] By adopting the above technical solution, two movable hinges are installed on the pressure plate frame, and the movable arc plate is hinged on the two movable hinges; through the setting of the movable hinges, a stable support point can be provided for the movable arc plate, which helps to optimize the force distribution, reduce stress concentration, and improve the stability and durability of the entire structure.

[0018] Optionally, the number of the leg assemblies is four, and the four groups of leg assemblies are respectively arranged at each corner of the crossbeam frame, and each of the leg assemblies includes a positioning tube, a connecting tube and a leg rod, the connecting tube is connected to the bottom of the crossbeam frame, the connecting tube is sleeved on the positioning tube, and the leg rod is connected to the bottom of the positioning tube.

[0019] By adopting the above technical solution, the leg assembly includes a positioning tube, a connecting tube and a leg rod; through the arrangement of the positioning tube, the connecting tube and the leg rod, four groups of leg assemblies are arranged at the four corners of the crossbeam frame, forming a stable quadrilateral support structure, which can effectively support the crossbeam frame, and disperse and balance the weight and load from the crossbeam frame, thereby enhancing the stability of the entire structure.

[0020] Optionally, a plurality of connection holes are formed through the positioning tube and the connecting tube, and a positioning pin for fixing is provided between the positioning tube and the connecting tube, and the positioning pin passes through the corresponding connection holes of the connecting tube and the positioning tube in sequence.

[0021] By adopting the above technical solution, a number of connecting holes are opened through the positioning tube and the connecting tube, and the positioning pins pass through the corresponding connecting holes of the connecting tube and the positioning tube in turn to realize the adjustment of the positioning tube and the connecting tube; the setting of the connecting holes and the positioning pins helps to realize precise adjustment between the positioning tube and the connecting tube, and the positioning pins can be inserted into different combinations of connecting holes to adapt to different installation and adjustment requirements, thereby improving the flexibility and adaptability of the device and enabling the device to adapt to different working scenarios and changing needs.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] The crossbeam frame and brake mechanism are designed to help achieve a rapid deceleration and braking effect, greatly shortening the time waiting for the impeller to stop, ensuring normal production operation, easy operation, and improved maintenance efficiency. The adjustment is flexible and can adapt to couplings of different sizes, enhancing its versatility and practicality.

[0024] The two hinged seats provide a stable support and rotation point for the pressure plate frame, making the pressure plate frame more stable when adjusting the angle, reducing the possibility of shaking and deviation, thereby improving the stability and reliability of the brake device;

[0025] Through the arrangement of positioning tubes, connecting tubes and outrigger rods, four groups of outrigger assemblies are arranged at the four corners of the crossbeam frame, forming a stable quadrilateral support structure that can effectively support the crossbeam frame, disperse and balance the weight and load from the crossbeam frame, and enhance the stability of the entire structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a brake device for wind turbine maintenance in an embodiment of the present application.

[0027] Figure 2 It is a structural schematic diagram used to reflect the brake mechanism in the embodiment of the present application.

[0028] Figure 3 This is a front view of a brake device for wind turbine maintenance in an embodiment of the present application.

[0029] Figure 4 yes Figure 2 Enlarged view of part A.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. crossbeam frame; 2. brake mechanism; 21. fixed arc plate; 22. movable arc plate; 23. pressure plate frame; 3. basket bolt; 4. friction area; 5. leg assembly; 51. positioning cylinder; 52. connecting cylinder; 53. leg rod; 6. lifting ear; 7. hinge assembly; 71. hinge seat; 8. connecting plate; 9. pin shaft; 10. movable hinge seat; 11. connecting hole; 12. positioning pin. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The present application embodiment discloses a brake device for wind turbine maintenance. Figure 1 The brake device for fan maintenance includes a crossbeam frame 1. In this embodiment, the crossbeam frame 1 is flat. A brake mechanism 2 is installed on the crossbeam frame 1. The brake mechanism 2 is used to brake the fan coupling. At the same time, a support leg assembly 5 is installed at the bottom of the crossbeam frame 1. The support leg assembly 5 is used to support the crossbeam frame 1.

[0033] Reference Figure 1 and Figure 2 The brake mechanism 2 includes a fixed arc plate 21, a movable arc plate 22 and a pressure plate frame 23. A hinge assembly 7 is provided at one end of the pressure plate frame 23. The hinge assembly 7 includes two hinge seats 71. The two hinge seats 71 are fixedly mounted on the crossbeam frame 1, and the two hinge seats 71 are respectively arranged on both sides of the pressure plate frame 23. Two connecting plates 8 are welded and fixed at the end of the pressure plate frame 23. The two connecting plates 8 correspond to the two hinge seats 71 one by one. A pin shaft 9 is installed between the two hinge seats 71, and the two connecting plates 8 are rotatably mounted on the pin shaft 9; it is used to provide a stable support and rotation point for the pressure plate frame 23, so that the pressure plate frame 23 is more stable when adjusting the angle, reducing the possibility of shaking and deviation, thereby improving the stability and reliability of the brake device.

[0034] Reference Figure 2 and Figure 3 The fixed arc plate 21 is installed and fixed on the cross beam frame 1, and the fixed arc plate 21 is bent toward the cross beam frame 1. Two movable hinge seats 10 are installed and fixed on one end of the pressure plate frame 23 close to the fixed arc plate 21. The movable arc plate 22 is installed between the two movable hinge seats 10. The movable arc plate 22 is hingedly installed between the two movable hinge seats 10, and the movable arc plate 22 is bent toward the pressure plate frame 23. In this embodiment, the fixed arc plate 21 corresponds to the movable arc plate 22, and a friction area 4 for the fan coupling brake is formed between the fixed arc plate 21 and the movable arc plate 22. The inner walls of the fixed arc plate 21 and the movable arc plate 22 are coated with a rough wear-resistant coating.

[0035] Reference Figure 2 A turnbuckle 3 is installed at one end of the pressure plate frame 23 away from the hinge assembly 7. In this embodiment, the turnbuckle 3 is an existing structure. The turnbuckle 3 is also called a rigging turnbuckle or a tightening wire buckle. It is a device that uses a lead screw to retract and extend to adjust the tightness of the wire rope; the turnbuckle 3 can achieve a small angle deflection of the pressure plate frame 23, adjust the contact effect between the movable arc plate 22, the fixed arc plate 21 and the coupling, and is also applicable to coupling structures of different sizes, thereby expanding the scope of use of the device.

[0036] Reference Figure 2 The crossbeam frame 1 and the pressure plate frame 23 are both fixedly mounted with lifting ears 6, and the two ends of the basket bolt 3 are respectively connected to the two lifting ears 6, so as to enhance the stability of the installation of the basket bolt 3 and ensure that the basket bolt 3 will not loosen or move during the braking process. At the same time, the installation and disassembly of the basket bolt 3 is simple and convenient, and the maintenance difficulty is reduced.

[0037] Reference Figure 4 In this embodiment, there are four groups of leg assemblies 5, which are respectively installed at the corners of the beam frame 1. Each leg assembly 5 includes a positioning tube 51, a connecting tube 52 and a leg rod 53. The connecting tube 52 is installed at the bottom of the beam frame 1, and the connecting tube 52 is sleeved on the positioning tube 51. At the same time, the leg rod 53 is connected to the bottom of the positioning tube 51; the four groups of leg assemblies 5 are arranged at the four corners of the beam frame 1, forming a stable quadrilateral support structure, which can effectively support the beam frame 1, and disperse and balance the weight and load from the beam frame 1, thereby enhancing the stability of the entire structure.

[0038] Reference Figure 4 A plurality of connecting holes 11 are formed on the positioning tube 51 and the connecting tube 52. The plurality of connecting holes 11 are formed in sequence along the length direction of the positioning tube 51 or the connecting tube 52. A positioning pin 12 is installed between the positioning tube 51 and the connecting tube 52. The positioning pin 12 passes through the corresponding connecting holes 11 of the connecting tube 52 and the positioning tube 51 in sequence to achieve precise adjustment between the positioning tube 51 and the connecting tube 52. The positioning pin 12 can be inserted into different combinations of connecting holes 11 to meet different installation and adjustment requirements, thereby improving the flexibility and adaptability of the device and enabling the device to adapt to different working scenarios and changing requirements.

[0039] The implementation principle of a brake device for fan maintenance in the embodiment of the present application is as follows: before the fan needs to be repaired, the brake device is placed near the fan coupling in advance to ensure that the fixed arc plate 21 corresponds to the outer edge of the coupling, the basket bolt 3 is loosened, and the angle of the pressure plate frame 23 is adjusted to maintain an appropriate gap between the movable arc plate 22 and the coupling. When the fan needs to be repaired and the impeller needs to be stopped, the movable arc plate 22 is gradually approached to the coupling by gradually tightening the basket bolt 3 until a predetermined contact pressure is reached, and friction is generated between the movable arc plate 22 and the fixed arc plate 21 and the inner side of the coupling. The deceleration and braking effect can be achieved while continuously observing the deceleration of the coupling, and the tightness of the basket bolt 3 can be adjusted in time as needed to optimize the braking effect. If couplings of different sizes are encountered, the basket bolt 3 can also be adjusted to adapt to ensure that the movable arc plate 22 and the coupling always maintain a good contact effect; the settings of the crossbeam frame 1 and the brake mechanism 2 can help achieve a rapid deceleration and braking effect, greatly shortening the time waiting for the impeller to stop, ensuring the normal operation of production, easy operation, improved maintenance efficiency, and flexible adjustment. It can adapt to couplings of different sizes, enhancing its versatility and practicality.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A brake device for fan maintenance, characterized in that: The invention comprises a cross beam frame (1), wherein a brake mechanism (2) is arranged on the cross beam frame (1), wherein the brake mechanism (2) comprises a fixed arc plate (21), a movable arc plate (22) and a pressure plate frame (23), wherein one end of the pressure plate frame (23) is hingedly arranged on the cross beam frame (1), and the other end of the pressure plate frame (23) is provided with a basket bolt (3) for adjusting the cross beam frame (1), wherein the movable arc plate (22) is hingedly arranged on a side of the pressure plate frame (23) close to the cross beam frame (1), wherein the fixed arc plate (21) is connected to the cross beam frame (1), wherein the fixed arc plate (21) corresponds to the movable arc plate (22), and a friction area (4) for braking a fan coupling is formed between the fixed arc plate (21) and the movable arc plate (22), and a leg assembly (5) is arranged at the bottom of the cross beam frame (1).

2. A brake device for wind turbine maintenance according to claim 1, characterized in that: The cross beam frame (1) and the pressure plate frame (23) are both provided with lifting ears (6) for fixing the basket bolt (3), the two lifting ears (6) are respectively connected to the cross beam frame (1) and the pressure plate frame (23), and the two ends of the basket bolt (3) are respectively connected to the two lifting ears (6).

3. A brake device for wind turbine maintenance according to claim 1, characterized in that: The hinged end of the pressure plate frame (23) is provided with a hinge assembly (7), and the hinge assembly (7) includes two hinge seats (71). The two hinge seats (71) are both connected to the crossbeam frame (1). The two hinge seats (71) are respectively arranged on both sides of the pressure plate frame (23), and the pressure plate frame (23) is hingedly arranged on the two hinge seats (71).

4. A brake device for wind turbine maintenance according to claim 3, characterized in that: Two connecting plates (8) are arranged at the hinged end of the pressure plate frame (23), and the two connecting plates (8) correspond to two hinged seats (71) respectively, and the connecting plates (8) are hingedly arranged on the hinged seats (71).

5. A brake device for wind turbine maintenance according to claim 4, characterized in that: A pin shaft (9) for connection is arranged between the two hinge seats (71), and the two connecting plates (8) are both rotatably connected to the pin shaft (9).

6. A brake device for wind turbine maintenance according to claim 1, characterized in that: The pressure plate frame (23) is provided with two movable hinge seats (10) for mounting the movable arc plate (22); the two movable hinge seats (10) are respectively arranged on both sides of the movable arc plate (22); and the movable arc plate (22) is hingedly connected to the two movable hinge seats (10).

7. A brake device for wind turbine maintenance according to claim 1, characterized in that: The number of the leg assemblies (5) is four, and the four groups of leg assemblies (5) are respectively arranged at each corner of the crossbeam frame (1). Each leg assembly (5) comprises a positioning tube (51), a connecting tube (52) and a leg rod (53). The connecting tube (52) is connected to the bottom of the crossbeam frame (1), the connecting tube (52) is sleeved on the positioning tube (51), and the leg rod (53) is connected to the bottom of the positioning tube (51).

8. A brake device for wind turbine maintenance according to claim 7, characterized in that: A plurality of connection holes (11) are formed through the positioning tube (51) and the connecting tube (52), and a positioning pin (12) for fixing is provided between the positioning tube (51) and the connecting tube (52), and the positioning pin (12) passes through the corresponding connection holes (11) of the connecting tube (52) and the positioning tube (51) in sequence.

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