JP6749380B2 - Electric dust collector - Google Patents

Description

The present invention relates to an electrostatic precipitator, and more particularly, to a semicircular separated electrostatic precipitator for easily disassembling a lubricating bush, a housing, and a collar axially coupled to a main shaft integrated with a brush. It is about.

Generally, there are various types of electrostatic precipitators (1) in which brushes (61) are symmetrically arranged on both sides to scrape off dust collected in the electrostatic precipitator (50).

As an example, the electrostatic precipitator (1) shown in FIG. 1 (hereinafter referred to as "dust precipitator") is a typical one, and its contents are as follows.

As shown in the figure, the conventional dust collector (1) has a large drive unit (10), main shaft (20), upper and lower wheels (30) (40), dust collector (50), and brush unit (60). Be separated.

The drive device (10) is composed of a drive motor (11), a driven gear (13), and a connecting member (14). The drive motor (11) has a reduction gear integrated therein as a geared motor. A drive gear (15) is provided on the output shaft (not shown) at the tip.

The drive gear (15) is interlocked by a connecting member (14) including one of the driven gear (13), the chain (Chain) and the belt (Belt).

As shown in the figure, the driven gears (13) are formed in two rows having the same center on the center line, and are arranged in large numbers at equal intervals, and are arranged in parallel with the driven gears (13) arranged at different positions. Can be connected to.

Thus, the driven gear (13) is axially coupled to one end of the main shaft (20), and the upper wheel (30) is symmetrically axially coupled to one of the driven gear (13) and the other end of the main shaft (20). It

The upper wheel (30) and the lower wheel (40) are chain sprockets formed in the up-down direction, which are positions facing each other, and the chain (35) is linked and interlocked by a pulley system.

Chain sprocket may be applied to the lower wheel (40), but drum may be applied without any problem.

The dust collecting electrodes (50) are continuously installed at equal intervals on the chain (35). The dust collecting electrode (50) is one of the electrodes in the electrostatic precipitator, and the discharge electrode (55). The dust or mist in the dust collector to which the electric charge is applied adheres.

There are flat type, tube type, etc. in the form of the dust collecting electrode (50), but in the case of the electric dust collector that is generally used for industrial purposes, the dust collecting electrode is a positive electrode. Grounded. (A dust collecting electrode of the Neighbor Knowledge Encyclopedia (excerpt from Environmental Engineering Term Dictionary, 1996.4., Son Antan Publishing Co.)).

In this way, the brush unit (60) integrally formed with the brush (61) is provided in order to scrape off dust and mist from the surface of the dust collecting electrode (50).

The brush unit (60) is arranged in two rows so that the dust collecting electrode (50) can pass through, and includes a housing (80) that supports both ends of the brush unit (BS).

The drive unit (10) that drives the brush unit (60) has the same structure as the drive unit (10), and thus a separate description is omitted.

The brush unit (60) has a structure in which the brush (61) is integrally formed in a spiral shape in the length direction, and it is possible to easily adjust the interval between the brushes (61) described later by the thickness of the dust collecting electrode. A Universal Joint (63) may be provided in the middle.

The housing (80) includes a main body (80a), a lubricating bush (70) and a collar (90).

The main body (80a) has an external shape as shown in the figure, is a symmetrical type, and has a bolt hole (81a) in the mounting flange (81) so that the dust collector frame (FR) can be easily fastened with bolts, and the center part A bush seating groove (82) is provided so that a lubricating bush (70) described later can be inserted easily.

A lubrication bush (70) is provided in the bush seating groove (82). The lubrication bush (70) is a well-known oilless bearing, and is a high temperature or low temperature corrosive atmosphere or foreign matter inflow. , Bearings applied to impact load and vibration, points where structure cannot be refueled, and places where refueling is difficult or ineffective even if refueling, mainly made of copper.

The collar (90) is made of a metallic material (SS400) and is welded to the brush unit (60) to prevent the lubrication bush (70) from coming off.

Therefore, the dust collecting electrode (50) passes between the brushes (61) provided in two rows by the rotation of the upper and lower wheels (30, 40), and the dust or mist is removed.

However, during the rotation of the brush unit (60), one end of the lubricating bush (70) that is in close contact with the collar (90) is easily worn (the "A" marked part) and the life is shortened, which is a fatal problem. There is.

In addition, there is a problem that noise and vibration during the rotation of the brush unit (60) are aggravated due to the generation of a gap between the collar (90) and the housing (80) due to wear of the lubricating bush (70). ..

Furthermore, in order to replace the lubrication bush (70), the universal joint (63) must be disassembled and taken out to one side, which makes maintenance difficult and requires a lot of time for replacement work, resulting in a high operating rate of the equipment. It has a fatal defect of lowering it.

Further, in the brush unit welded part to which the collar is welded and mounted, there is a problem that the straightness (Straightness) is lowered due to stress concentration and thermal deformation, and wear of the lubricating bush is promoted by violent vibration during rotation.

As described above, the present invention has been invented in order to solve the conventional problems, and an object of the present invention is to prevent wear of a lubricating bush that is in close contact with a collar, which is the cause of noise and vibration. Is to remove.

Another object of the present invention is to facilitate replacement of the lubricating bush and improve the operating rate of the dust collector.

Further, a further object of the present invention is to maintain the straightness of the main shaft with which the brush is integrated, and realize quiet rotation operation.

The present invention, which has such a purpose,
An upper wheel that is provided at a large number at equal intervals so that it can be interlocked by a drive device, is symmetrically provided at both ends of a main shaft that is axially coupled to the center, and a lower wheel that is provided on the lower side facing the upper wheel. , With a number of dust collecting electrodes equidistantly provided on a chain connected to the upper and lower wheels by a pulley system;
The main shaft, which is symmetrically arranged so that it can be interlocked with a driving device to scrape off the mist or dust collected on the dust collecting electrode, and the brush is integrally provided, and the main shaft smoothly rotates. Is equipped with a lubricating bush that is axially coupled so that the electrostatic precipitator can be easily bolted. The present invention relates to an electric dust collector composed of a collar that is axially coupled to a main shaft,
The lubricating bush and housing are
It is characterized in that it is separated in a semicircular symmetry with respect to the vertical center for easy exchange.

The bolt holes formed in the mounting flange of the housing are elongated holes.

In addition, the housing may further include a protrusion and a seat groove formed on the separated contact portions.

In addition, the contact portion further includes a flange extending symmetrically and a bolt hole penetrating in a direction perpendicular to the flange.

Further, the lubricating bush is characterized by being formed of either self-lubricating engineering plastic or phenol resin.

As described in detail above, the electrostatic precipitator according to the present invention has the effect of fundamentally eliminating the cause of noise and vibration by preventing the wear of the lubricating bush that is in close contact with the collar.

Further, since the lubricating bush can be easily replaced, the operation rate of the dust collector can be improved.

Further, there is an effect that the straightness of the main shaft provided integrally with the brush is maintained and a quiet rotation operation is realized.

It is the perspective view which showed the electric dust collector. FIG. 2 is a sectional view taken along the line “A”-“A” in FIG. FIG. 2b is a sectional view taken along line “B”-“B” of FIG. 2a. It is the figure which extracted and showed the structure of the housing, the lubrication bush, and the collar which were isolate|separated in the structure of the electrostatic precipitator by this invention. It is the figure which extracted and showed the structure of the housing, the lubrication bush, and the collar which were isolate|separated in the structure of the electrostatic precipitator by this invention. It is a reference drawing shown in order to explain the operation|work which replaces the lubrication bush in the structure of the electrostatic precipitator by this invention.

As shown in FIG. 1, FIG. 3 and FIG. 4, the electrostatic precipitator (1) according to the present invention comprises a drive unit (10), a spindle (20), an upper wheel (30), a lower wheel (40), a dust collecting electrode (50), A brush unit (60) integrally provided with the brush (61), a lubricating bush (70), a housing (80), and a collar (90) are provided.

In the practice of the present invention, the lubrication bush (70), the housing (80), and the collar (90), which are separated into a semicircular shape, are substantially the same as the conventional ones except for a part of the configuration. A detailed description of the elements is omitted (see Figure 1 for configurations not shown in Figures 3 and 4).

Then, the same configuration as the conventional configuration will be described with the same name, but only the reference numerals will be separately described for convenience.

As shown in FIGS. 3 and 4, the lubrication bush (70), the housing (80), and the collar (90) are separated in a semi-circular symmetry with respect to the vertical center, and the lubrication bush (70) functions as described later. Either engineering plastic or phenol resin may be applied so that it is not necessary to inject the lubricating oil separately.

One must be aware of the composition table of synthetic resins and the role of the composition.

The housing (80) has a mounting flange (81) formed at the end symmetrically provided and separated to facilitate bolting to an electrostatic precipitator (not shown). It is desirable that the bolt hole (81a) formed so that the bolt can easily pass therethrough be formed as an elongated hole.

The reason why the bolt hole (81a) is formed as an elongated hole is that the lubricating bush (70) axially coupled to the brush unit (60) can be easily attached and detached by the working method described later so that it can be easily moved to one or the other. This is so that they can do it.

Further, in the housing (80), the convex portion (83a) and the seating groove (83b) are respectively formed in the separated surface contact portion (83), and the binding force is improved when the surface contact is made and the connection is made.

Further, the contact portion (83) is symmetrically extended to form a flange (85), and is provided with a bolt hole (87) penetrating in a direction perpendicular to the flange (85). Can be maintained.

Further, as shown in the drawing, the collar (90) is also separated into a semicircle, and a bolt fastening portion (91) is further formed in order to prevent deformation of the main shaft (60) that may occur during welding connection.

The bolt fastening portion (91) has a bolt hole (91a) formed on one side so that the bolt (wrench bolt) can easily pass therethrough, and the head portion of the bolt is formed on one side of the bolt hole (91a). A seat groove (91b) is provided so that it can be provided.

Regarding this, a tap (91c) was formed on the other side so as to fit with the bolt, so that the bolt could be firmly axially coupled to the brush unit (60).

Next, a method for replacing the lubricating bush (70) of the electrostatic precipitator (1) according to the present invention will be described with reference to FIG.

First, after loosening the bolts of the bolt fastening portion (91) of the collar (90) slightly, the bolts are pushed to one side so that the lubricating bush (70) can be easily disassembled.

Next, slightly loosen the bolts that have passed through the elongated bolt holes (81a) provided symmetrically on the left and right sides of the housing (80), and similarly push the connector to unfold the housing (80) to expand it outward. , After making it easy to separate the lubrication bush (70), also open the semicircular old lubrication bush (70) on both sides and take out the new lubrication bush (70) symmetrically on both sides of the housing (80). Prepare

After this, in the reverse order of the above work, after moving the housing (80) expanded on both sides toward the inside, tighten the bolts provided in the long bolt holes (81a) firmly, and then on one side The replacement work is completed by pushing the collar (90) so that it is in contact with and supporting the lubricating bush (70) in its original position and fastening the loosely closed bolt.

As described in detail above, the electrostatic precipitator (1) according to the present invention allows the lubrication bush (70) in close contact with the collar (90) to be formed of a material having wear resistance and strength higher than that of iron, and It is possible to improve the operation rate of the electrostatic precipitator (1) by fundamentally removing the cause of noise and vibration by making it difficult to replace and making it easy to replace the lubricating bush (70). did it.

Furthermore, the collar (90) is bolt-bonded instead of welded, and the cause of the straightness defect due to thermal deformation is fundamentally prevented, so that the brush unit (60) integrated with the brush unit (60) The straightness was maintained and quiet rotation operation was realized.

The present invention is not limited to the specific preferred embodiments described above, and any person having ordinary knowledge in the technical field to which the present invention pertains without departing from the gist of the present invention is easily modified and implemented. Of course, such modifications are possible and such modifications are within the scope of the claims.

1 Electrostatic Precipitator 10 Drive Unit 20 Main Spindle 30 Upper Wheel 40 Lower Wheel 50 Dust Collector 60 Brush Unit 61 Brush 70 Lubrication Bushing 80 Housing 81 Mounting Flange 81a Bolt Hole 83 Face Contact 83a Convex 83b Seating Groove 85 Flange 87 Bolt Hole 90 Color

Claims (1)

Equidistantly provided several in order to be able to interlock the drive device, an upper wheel provided symmetrically on both ends of the main shaft, which is axially coupled to the central, lower wheel provided on the lower side opposed to the upper wheel When formed in the dust collection electrode provided several at equal intervals in the chain is engaged binding to the upper wheel and the lower wheel;
A brush unit integrally provided with symmetrically arranged brushes that can be interlocked by a driving device to scrape off the mist or dust collected on the dust collecting electrode, and the brush unit are smooth. A lubricating bush axially coupled to the electric dust collector is provided, and a housing provided with a mounting flange and a bolt hole symmetrically so that the electrostatic precipitator can be easily bolted, and the lubricating bush is provided . in configured electrical precipitator and the color that is axially coupled to the main shaft for preventing detachment,
In addition, a universal joint configured to facilitate adjustment of the brush spacing,
The lubricating bush and housing are
Separated and installed in a semi-circular symmetry with respect to the vertical center ,
The collar is bisected in a semi-circular shape, and further includes a bolt fastening portion formed to prevent deformation of the main shaft,
Lubricating bush, an electrostatic precipitator, characterized in Rukoto is formed one of engineering plastic or phenolic resin to eliminate the need for injection of lubricating oil.