Cathode rapping transmission device of electric dust remover

Abstract

The utility model discloses a cathode rapping transmission device of an electric dust remover, which belongs to the field of electric dust removers, solves the problem of unstable rapping, and adopts the technical scheme that the cathode rapping transmission device comprises a horizontally arranged rapping shaft, a rapping hammer is arranged on the rapping shaft, a cathode rapping power device is arranged above the rapping shaft, and the cathode rapping power device is connected with the rapping shaft. A transmission shaft extending vertically is connected between the cathode rapping power device and the rapping shaft, a driving wheel is arranged at the end of the transmission shaft, a driven wheel matched with the driving wheel is arranged on the rapping shaft, and a supporting frame supported below the driving wheel is further arranged on the transmission shaft. According to the utility model, the rapping is more stable.

Description

Technical Field

[0001] The utility model relates to the field of electrostatic precipitators, in particular to a cathode rapping drive device for an electrostatic precipitator. Background Art

[0002] The working principle of the existing cathode rapping device of an electrostatic precipitator is that when flue gas passes through the main structure of the electrostatic precipitator, due to the discharge of the cathode discharge electrode, the air is ionized. When the soot passes through, the dust particles therein will obtain negative charges and finally deposit on the positively charged anode plate. By rapping the cathode discharge electrode, the dust with a certain thickness will fall under the dual action of its own weight and vibration, so as to achieve the purpose of removing dust in the flue gas. For example, the cathode rapping pin wheel drive device of the electrostatic precipitator disclosed in the utility model patent CN200984534Y, a reduction motor drives a transmission shaft, and the transmission shaft drives the rapping shaft to rotate through a large pin wheel and a small pin wheel, so as to drive the rapping hammer on the rapping shaft to rap. However, in the above device, the small pin wheel is arranged in the middle and lower part of the transmission shaft. Since the distance between the rapping shaft and the reduction motor is relatively fixed, there is a part of the transmission shaft that extends beyond the small pin wheel. On the one hand, the part of the transmission shaft that extends beyond the small pin wheel will interfere with the rapping hammer on the rapping shaft, resulting in the need to avoid the transmission shaft when installing the rapping hammer, thus resulting in a smaller rapping electric field width. On the other hand, the part of the transmission shaft that extends beyond the small pin wheel is far from the reduction motor. During the process of the reduction motor driving the transmission shaft to rotate, the part of the transmission shaft that extends beyond the small pin wheel is prone to swing, causing the small pin wheel arranged on the transmission shaft to swing accordingly, so that the rapping of the rapping hammer on the vibration shaft is unstable. Summary of the Utility Model

[0003] The purpose to be achieved by the utility model is to provide a cathode rapping drive device for an electrostatic precipitator, which solves the problem of unstable rapping and makes the rapping more stable.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: a cathode rapping drive device for an electrostatic precipitator, including a horizontally arranged rapping shaft, a rapping hammer is arranged on the rapping shaft, a cathode rapping power device is arranged above the rapping shaft, a vertically extending transmission shaft is connected between the cathode rapping power device and the rapping shaft, a driving wheel is arranged at the lower end of the transmission shaft, a driven wheel matched with the driving wheel is arranged on the rapping shaft, and a support frame supporting the driving wheel is further arranged on the transmission shaft.

[0005] After adopting the above technical scheme, the utility model has the following advantages: First, the driving wheel is set at the lower end of the transmission shaft, which can shorten the length of the transmission shaft, reduce the torque of the transmission shaft, make the vibration more stable, and realize top vibration. The arrangement range of the vibration hammers on the vibration shaft can be increased, which is suitable for occasions with a large vibration electric field width, especially in large units, multi-chamber partition vibration can be implemented, reducing the difficulty of inspection. Secondly, by arranging a support frame on the transmission shaft, the driving wheel can be better supported, reducing the radial load of the transmission shaft, and ensuring the service life of the cathode vibration power device.

[0006] Furthermore, the support frame is provided with a boss protruding upward, and a groove is provided below the driving wheel. The boss is inserted into the groove and contacts with the bottom surface of the groove.

[0007] By adopting the above-mentioned technical solution, the cooperation between the boss and the groove can provide additional radial support, reduce the shaking of the driving wheel during operation, improve the stability of the transmission system, and facilitate the positioning and installation between the support frame and the driving wheel.

[0008] Furthermore, a positioning groove is provided on the driving wheel above the groove, and the boss supports the driving wheel upward so that the positioning groove abuts against the end of the transmission shaft.

[0009] By adopting the above-mentioned technical solution, the setting of the positioning groove provides precise axial positioning of the driving wheel, which is beneficial to the accurate installation of the driving wheel and the driven wheel. Secondly, the supporting effect of the boss reduces the shaking and vibration of the driving wheel, especially at high-speed operation, thereby improving the overall stability and reliability of the transmission system.

[0010] Furthermore, the support frame is provided with a first bow-shaped arm and a second bow-shaped arm, the boss is provided above the first bow-shaped arm, and the second bow-shaped arm is located below the first bow-shaped arm and is aligned with the lower part of the first bow-shaped arm.

[0011] By adopting the above-mentioned technical solution, the boss on the first bow arm bears the main load, while the second bow arm provides additional support and limitation. The shape of the bow arm can absorb and disperse vibration, reduce vibration transmission during transmission, and improve the dynamic response capability and running smoothness of the system.

[0012] Furthermore, the support frame is provided with a connecting arm extending upward to above the driving wheel, and the connecting arm is connected to the transmission shaft located above the driving wheel through a bearing.

[0013] By adopting the above-mentioned technical solution, the connecting arm extends upward to above the driving wheel and is connected to the transmission shaft through a bearing, which can provide additional support for the support frame, further shorten the distance to the reducer, reduce swing and deformation under load or vibration, and enhance the structural stability of the entire transmission system. Secondly, the use of bearings allows the transmission shaft to remain smooth during rotation, preventing the connecting arm from rotating with the transmission shaft, thereby avoiding interference between the connecting arm and the driven wheel.

[0014] Furthermore, the connecting arm and the driven wheel are located on different axial sides of the transmission shaft.

[0015] Through the above technical solution, when the connecting arm and the driven wheel are located on different sides of the transmission shaft, the space can be used more reasonably, especially when the internal space of the equipment is limited, which helps to achieve a more compact design. The driven wheel can also be separated from the connecting arm to avoid interference of the connecting arm with the driven wheel.

[0016] Furthermore, the transmission shaft is sleeved with at least two bearings, and the at least two bearings are spaced apart and connected to the connecting arm.

[0017] Through the above technical solution, the use of multiple bearings can significantly improve the stability of the drive shaft, especially when the bearings are arranged at intervals, they can provide more uniform support, more effectively disperse the load, reduce the pressure on a single bearing, extend the service life of the bearing, reduce the deflection and vibration of the drive shaft, and also increase the installation stability of the support frame.

[0018] Furthermore, the transmission shaft is provided with a dust cover located above the bearing.

[0019] Through the above technical solution, the dust cover can prevent dust, debris, moisture and other pollutants from entering the interior of the bearing, avoid premature failure of the bearing due to wear, corrosion or poor lubrication, and extend the service life of the bearing.

[0020] Furthermore, the cathode rapping power device includes a reducer, an insulator chamber, an output shaft and an insulator shaft. The insulator shaft is located in the insulator chamber, the output shaft is transmission-connected to the reducer, and the output shaft is connected to the transmission shaft via the insulator shaft.

[0021] Through the above technical solution, the segmented output shaft, insulator shaft and transmission shaft can be arranged according to actual space requirements, which helps to optimize the spatial layout of the equipment and save installation space.

[0022] Furthermore, an inspection hole is provided on the side of the insulator chamber.

[0023] Through the above technical solution, the existence of the inspection hole greatly simplifies the inspection and maintenance of the internal components of the insulator chamber. Necessary repairs or replacements can be carried out without disassembling the entire device or moving large components, potential problems such as the aging, damage or fouling of the insulators can be detected in a timely manner, thus preventing electrical failures, improving the safety of equipment operation, and saving time and costs. Brief Description of the Drawings

[0024] The present utility model will be further described below in conjunction with the accompanying drawings:

[0025] Figure 1 is a schematic structural view of the cathode rapping drive device of the electrostatic precipitator of the present utility model;

[0026] Figure 2 is of the present utility model Figure 1 an enlarged view of the structure at A in

[0027] Figure 3 is a schematic structural view of another perspective of the cathode rapping drive device of the electrostatic precipitator of the present utility model;

[0028] Figure 4 is a schematic structural view of the rapping shaft of the present utility model;

[0029] In the figures, 10, rapping shaft; 11, rapping hammer; 12, driven wheel; 20, reducer; 30, insulator chamber; 31, inspection hole; 40, transmission shaft; 41, driving wheel; 42, wear-resistant block; 43, groove; 44, dust cover; 45, positioning groove; 50, porcelain rotating shaft; 60, support frame; 61, boss; 62, connecting arm; 63, first bow-shaped arm; 64, second bow-shaped arm; 65, bearing; 70, output shaft. Detailed Embodiments

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model.

[0031] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above accompanying drawings are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order different from those illustrated or described herein.

[0032] It should be understood that in various embodiments of the present utility model, regarding the magnitudes of the sequence numbers of each process, it does not mean the sequence of execution is prior or subsequent. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present utility model.

[0033] It should be understood that in the present utility model, "comprising", "having" and any of their variations are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0034] It should be understood that in the present utility model, "a plurality of" means two or more. "And / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist simultaneously, and Y exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "Comprising X, Y and Z", "comprising X, Y, Z" means that all of X, Y, and Z are included, "comprising X, Y or Z" means that one of X, Y, and Z is included, and "comprising X, Y and / or Z" means that any one or any two or all three of X, Y, and Z are included.

[0035] The technical solutions of the present utility model will be described in detail below with specific embodiments. These several specific embodiments can be combined or replaced according to the actual situation. For the same or similar concepts or processes, they may not be repeated in some embodiments.

[0036] Such as Figures 1 to 4As shown in the figure, the utility model provides a cathode rapping drive device for an electrostatic precipitator, which includes a horizontally arranged rapping shaft 10. Rapping hammers 11 are provided on the rapping shaft 10. A cathode rapping power device is arranged above the rapping shaft 10. A vertically extending transmission shaft 40 is connected between the cathode rapping power device and the rapping shaft 10. The cathode rapping drive device includes a reducer 20, an insulator chamber 30, an output shaft 70 and an electric porcelain rotating shaft 50. The electric porcelain rotating shaft 50 is located in the insulator chamber 30. The output shaft 70 is in transmission connection with the reducer 20. The output shaft 70 is connected to the transmission shaft 40 through the electric porcelain rotating shaft 50. A driving wheel 41 is provided at the lower end of the transmission shaft 40. A driven wheel 12 that cooperates with the driving wheel 41 is provided on the rapping shaft 10, making the driving wheel 41 easier to approach, facilitating the mating installation of the driven wheel 12, shortening the length of the transmission shaft 40, reducing the torque of the transmission shaft 40, making the rapping more stable, realizing top rapping, avoiding interference of the transmission shaft 40 with the rapping hammers 11, increasing the range of the rapping hammers 11 on the rapping shaft 10, being applicable to occasions with a large rapping electric field width, especially in large units, multi-chamber zoning rapping can be implemented, reducing the difficulty of inspection.

[0037] It should be noted that the axes of the driving wheel 41 and the driven wheel 12 are perpendicular. The driving wheel 41 can be a small pinion, and the driven wheel 12 can be a large pinion, so as to be able to drive the rapping shaft 10 more stably.

[0038] In order to further improve the stability of the transmission shaft 40, a support frame 60 that supports below the driving wheel 41 is also provided on the transmission shaft 40, which can better support the driving wheel 41, reduce the radial load of the transmission shaft 40, and ensure the service life of the cathode rapping power device.

[0039] In order to realize the installation of the support frame 60, the support frame 60 is provided with a connecting arm 62 that extends upward above the driving wheel 41. The connecting arm 62 is connected to the transmission shaft 40 located above the driving wheel 41 through a bearing 65. The connecting arm 62 extends upward above the driving wheel 41 and is connected to the transmission shaft 40 through a bearing 65, which can provide additional support for the support frame 60, further shortening the distance to the reducer 20, reducing the swing and deformation under load or vibration, and enhancing the structural stability of the entire transmission system. Secondly, the use of the bearing 65 allows the transmission shaft 40 to rotate smoothly, preventing the connecting arm 62 from rotating with the transmission shaft 40, and thus avoiding interference between the connecting arm and the driven wheel 12.

[0040] Furthermore, at least two bearings 65 are sleeved on the transmission shaft 40, and at least two bearings 65 are arranged at intervals and connected to the connecting arm 62. The use of multiple bearings 65 can significantly improve the stability of the transmission shaft 40, especially when the bearings 65 are arranged at intervals, they can provide more uniform support, more effectively disperse the load, reduce the pressure on a single bearing 65, extend the service life of the bearing 65, reduce the deflection and vibration of the transmission shaft 40, and also increase the installation stability of the support frame 60.

[0041] It should be noted that the transmission shaft 40 may be provided with two, three, four, five or other bearings 65 .

[0042] In order to ensure the service life of the bearing 65, a dust cover 44 is provided on the transmission shaft 40 and is located above the bearing 65. The dust cover 44 can prevent dust, debris, moisture and other contaminants from entering the interior of the bearing 65, thereby avoiding premature failure of the bearing 65 due to wear, corrosion or poor lubrication, and extending the service life of the bearing 65.

[0043] In order to avoid interference with the installation of the driven wheel 12, the connecting arm 62 and the driven wheel 12 are located on different axial sides of the transmission shaft 40. This can make more rational use of space, especially when the internal space of the equipment is limited, which helps to achieve a more compact design. The driven wheel 12 can also be separated from the connecting arm 62 to avoid interference of the connecting arm 62 on the driven wheel 12.

[0044] Preferably, the connecting arm 62 and the driven wheel 12 are located on opposite sides of the transmission shaft 40 , so that the driven wheel 12 is as far away from the connecting arm 62 as possible.

[0045] In order to support the driving wheel 41, the support frame 60 is provided with an upwardly protruding boss 61, and a groove 43 is provided under the driving wheel 41. The boss 61 is inserted into the groove 43 and contacts with the bottom surface of the groove 43. The cooperation between the boss 61 and the groove 43 can provide additional radial support, reduce the shaking of the driving wheel 41 during operation, improve the stability of the transmission system, and facilitate the positioning and installation between the support frame 60 and the driving wheel 41.

[0046] Since the groove 43 is prone to friction, a wear-resistant block can be separately provided on the driving wheel 41, and the groove 43 is provided on the wear-resistant block 42. The wear-resistant block 42 is detachably connected to the driving wheel 41 through fasteners. The distance between the boss 61 and the groove 43 can also be compensated by replacing the wear-resistant blocks 42 of different sizes, so that the support frame 60 can support the driving wheel 41 more stably.

[0047] Moreover, a positioning groove 45 is provided above the driving wheel 41 in the groove 43. The boss 61 supports the driving wheel 41 upward so that the positioning groove 45 abuts against the end of the transmission shaft 40. The setting of the positioning groove 45 provides precise axial positioning for the driving wheel 41, which is beneficial to the accurate installation of the driving wheel 41 and the driven wheel 12. Secondly, the supporting effect of the boss 61 reduces the shaking and vibration of the driving wheel 41, especially during high-speed operation, improving the overall stability and reliability of the transmission system.

[0048] To make the operation of the transmission shaft 40 more stable, the support frame 60 is provided with a first arcuate arm 63 and a second arcuate arm 64. The boss 61 is arranged above the first arcuate arm 63, and the second arcuate arm 64 is located below the first arcuate arm 63. The boss 61 on the first arcuate arm 63 bears the main load, while the second arcuate arm 64 provides additional support and limit. The shape of the arcuate arm can absorb and disperse vibrations, reduce vibration transmission during the transmission process, and improve the dynamic response ability and operation stability of the system.

[0049] For the convenience of maintenance, a maintenance hole 31 is provided on the side of the insulator chamber 30. The existence of the maintenance hole 31 greatly simplifies the inspection and maintenance work of the internal components of the insulator chamber 30. Necessary repairs or replacements can be carried out without disassembling the entire device or moving large components, potential problems such as aging, damage or contamination of the insulators can be detected in time, thus preventing electrical faults, improving the safety of the equipment operation, and saving time and costs.

[0050] It can be understood that in other embodiments, the support frame can also be provided with a groove, and the driving wheel is provided with a boss for mating contact.

[0051] In addition to the above preferred embodiments, the present utility model has other implementation manners. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope claimed by the present utility model.

Claims

1. A cathode rapping drive device for an electrostatic precipitator, comprising a horizontally arranged rapping shaft, rapping hammers being provided on the rapping shaft, a cathode rapping power device being arranged above the rapping shaft, and a vertically extending transmission shaft being connected between the cathode rapping power device and the rapping shaft, characterized in that, A driving shaft is provided with a driving wheel at its lower end. A driven wheel, which is engaged with the driving wheel, is provided on the rapping shaft. The driving shaft is further provided with a support frame that is supported below the driving wheel.

2. The cathode rapping drive device of the electrostatic precipitator according to claim 1, characterized in that, The support frame is provided with a convex platform protruding upward. A groove is provided below the driving wheel. The convex platform is inserted into the groove and contacts the bottom surface of the groove.

3. The cathode rapping drive device of the electrostatic precipitator according to claim 2, characterized in that, A positioning groove is provided above the driving wheel in the groove. The convex platform supports the driving wheel upward so that the positioning groove abuts against the end of the driving shaft.

4. The cathode rapping drive device of the electrostatic precipitator according to claim 2, characterized in that, The support frame is provided with a first arcuate arm and a second arcuate arm. The convex platform is provided on the first arcuate arm. The second arcuate arm is located below the first arcuate arm.

5. The cathode rapping drive device of the electrostatic precipitator according to claim 1, characterized in that, The support frame is provided with a connecting arm extending upward above the driving wheel. The connecting arm is connected to the driving shaft above the driving wheel through a bearing.

6. The cathode rapping drive device of the electrostatic precipitator according to claim 5, characterized in that The connecting arm and the driven wheel are located on different sides in the radial direction of the driving shaft.

7. The cathode rapping drive device of the electrostatic precipitator according to claim 5, characterized in that, At least two bearings are sleeved on the driving shaft. The at least two bearings are arranged at intervals and connected to the connecting arm.

8. The cathode rapping drive device of the electrostatic precipitator according to claim 7, characterized in that, A dust-proof cover is provided on the driving shaft above the bearing.

9. The cathode rapping drive device of the electrostatic precipitator according to claim 1, characterized in that The cathode rapping power device includes a reducer, an insulator chamber, an output shaft and an electric porcelain rotating shaft. The electric porcelain rotating shaft is located in the insulator chamber. The output shaft is in transmission connection with the reducer. The output shaft is connected to the driving shaft through the electric porcelain rotating shaft.

10. The cathode rapping drive device of the electrostatic precipitator according to claim 9, characterized in that, An inspection hole is provided on the side of the insulator chamber.

Images