JP2012141052A - Chain cleaning mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chain cleaning mechanism having a simple structure and capable of always cleaning off a deposit on a chain while simplifying operation such as maintenance, and a conveyer system including the same.SOLUTION: A cleaning means 120 arranged in a linear traveling part of a chain C includes brush holding arms 122 rotatably holding a rotating brush 121 driven to rotate in contact with the chain C, and connection bars 123 for fixing the brush holding arms 122 to a fixing base 110 where a relative position thereof to a sprocket is fixed.

Description

  The present invention relates to a chain cleaning mechanism for cleaning a chain traveling between sprockets, for example, a chain suitable for cleaning a drive chain that drives a drive wheel of a scraper conveyor that scrapes sludge in a water tank of a sewage treatment facility or the like. The present invention relates to a cleaning mechanism and a conveyor system including the chain cleaning mechanism.

  Conventionally, in a sewage treatment facility or the like, a conveyor system having a scraper with a scraper wound endlessly around a plurality of wrapping rings in a water tank, and using the conveyor belt, the sludge that has settled on the bottom of the water tank is scraped Is well known (see, for example, Patent Documents 1 and 2).

  In this conveyor system, one of a plurality of winding wheels is used as a drive wheel, a drive means is provided in the upper part of the water tank, and a space between a drive sprocket provided in the drive means and a driven sprocket provided in the drive wheel. The conveyor belt is driven by rotating the chain around the chain.

  In these conveyor systems, the chain is always in contact with liquid containing sludge in the water tank, so impurities and dust are likely to adhere to it, and in particular, a large amount of oil (scum) that tends to float on the upper surface of the liquid. Adhere to.

If these impurities, dust, or the like adhere, the chain or sprocket may be worn out or troubled in rotation.
In addition, when oil or the like (scum) adheres, it adheres for a long time, and corrosion or pitting corrosion of the adhered part is promoted by metal electric action or chemical action. There is.

JP 59-223615 (all pages, all figures) Japanese Utility Model Publication No. 2-45107 (all pages, all figures)

  In order to avoid the conventional problem, the chain is regularly cleaned. However, since the chain case is usually provided and the chain is driven in the case, the drive is completely stopped. There is a problem that it is necessary to remove the chain case and perform a cleaning operation, which is a very time-consuming operation and is difficult to clean frequently.

  In addition, it is conceivable to inject water into the chain case to clean the deposits on the chain, but piping equipment and its control means are required, which complicates the equipment and provides maintenance of the added equipment. There was a problem that additional work occurred and the cost increased.

  The present invention solves the problems of the prior art as described above, that is, the object of the present invention is to always clean the deposits on the chain while simplifying the work such as maintenance with a simple configuration. The present invention is to provide a chain cleaning mechanism and a conveyor system including the chain cleaning mechanism.

  The invention according to claim 1 includes a chain that travels while being wound around a plurality of sprockets, a cleaning unit provided in a linear traveling part of the chain, and a fixed base that fixes the cleaning unit. A chain cleaning mechanism, wherein the cleaning means is in contact with the chain and rotates following a shaft parallel to the plurality of sprockets; a brush holding arm that rotatably holds the rotary brush; A connecting bar that fixes the brush holding arm to the fixed base, and the fixed base is fixed at a relative position to at least one sprocket of the plurality of sprockets. Is.

  According to the second aspect of the present invention, in addition to the structure of the chain cleaning mechanism according to the first aspect, drive means for driving a drive sprocket among the plurality of sprockets is fixed to a base member, and the fixed base portion However, the problem is solved by being fixed to the base member.

  In the invention according to claim 3, in addition to the structure of the chain cleaning mechanism described in claim 1 or 2, the brush holding arms are provided in pairs at both ends of the rotating shaft of the rotating brush, The rotating brush is rotatably supported at one end of the pair of brush holding arms, and the other end and the middle of the pair of brush holding arms are connected by the connecting bar. The above-mentioned problem is solved.

  In the invention according to claim 4, in addition to the structure of the chain cleaning mechanism described in claim 3, the connection bar is fixed by screwing to a long hole provided in the fixed base, and the long hole is By providing in a direction in which the pressing amount of the rotating brush against the chain is variable, the problem is solved.

  In the invention according to claim 5, in addition to the structure of the chain cleaning mechanism according to any one of claims 1 to 4, the cleaning means is provided in a linear travel portion on the loose side of the chain. Therefore, the above-described problem is solved.

  According to a sixth aspect of the present invention, in addition to the structure of the chain cleaning mechanism according to any one of the first to fifth aspects, the rotating brush has a width larger than the width of the chain, and the chain The above-mentioned problem is solved by having a diameter larger than the pitch.

  The invention according to claim 7 is a conveyor system comprising the chain cleaning mechanism according to any one of claims 1 to 6, wherein the driven sprocket among the plurality of sprockets drives the conveyor. The above-mentioned problem is solved by being provided on a wheel, the fixed base is fixed to a base member provided above the driven sprocket, and driving means for driving the driving sprocket is fixed to the base member. To do.

  In the invention according to claim 8, in addition to the configuration of the conveyor system according to claim 7, the conveyor is a scraper used in water, and the driven sprocket is disposed in water, The fixed base and the cleaning means are arranged on the water to solve the above problem.

The chain cleaning mechanism according to the first aspect of the present invention includes a chain that travels between a plurality of sprockets, a cleaning unit that is provided in a linear traveling unit of the chain, and a fixed base that fixes the cleaning unit. A cleaning mechanism, wherein the cleaning means is in contact with the chain and rotates following the axis parallel to the plurality of sprockets, and a brush holding arm that rotatably holds the rotating brush. And a connecting bar for fixing the brush holding arm to the fixed base, and the fixed base is fixed at a relative position to at least one sprocket of the plurality of sprockets, whereby the cleaning means is integrally connected to the connecting bar. Since it is only necessary to fix to the fixed base by means of the configuration, the structure is simple and the rotating brush can always contact the chain and clean the deposits, There is no need to perform the cleaning operation is stopped completely drive for scavenging.
Further, the vibration and noise of the chain can be reduced by the elasticity of the rotating brush itself.

  In the chain cleaning mechanism according to the second aspect of the present invention, in addition to the effect produced by the chain cleaning mechanism according to the first aspect, driving means for driving the driving sprocket among the plurality of sprockets is fixed to the base member, and the fixed base portion Since the base member to which the conventional driving means is fixed can be used as the base member to which the fixed base is fixed, the chain can be formed with a simple structure without adding a structure. It becomes possible to fix the relative position of the cleaning means with respect to.

  In the chain cleaning mechanism of the invention according to claim 3, in addition to the effect produced by the chain cleaning mechanism according to claim 1 or 2, a pair of brush holding arms is provided at both ends of the rotating shaft of the rotating brush, The rotating brush is rotatably supported at one end of the pair of brush holding arms, and the other end and the middle of the pair of brush holding arms are connected by a connecting bar, whereby the cleaning means is The simple structure that can be handled integrally makes installation and maintenance easy, and the position of the rotating brush can be firmly fixed by the two connecting bars, and the rotating brush always contacts the chain. Thus, it becomes possible to clean the deposits.

In the chain cleaning mechanism according to the fourth aspect of the present invention, in addition to the effect produced by the chain cleaning mechanism according to the third aspect, the connecting bar is screwed and fixed to the long hole provided in the fixed base, and the long hole corresponds to the chain. By providing in the direction which makes the pressing amount of a rotating brush variable, the rotating brush can be made into the pressing amount suitable for the cleaning of a chain, and it becomes possible to clean a deposit more effectively.
In addition, the vibration and noise of the chain can be further reduced by setting the pressing amount according to the tension and slack of the chain.

  In the chain cleaning mechanism according to the fifth aspect of the present invention, in addition to the effect exhibited by the chain cleaning mechanism according to any one of the first to fourth aspects, the cleaning means is provided in the linear travel portion on the loose side of the chain. As a result, the rotating brush is pressed against the loose side where chain slack is likely to occur, so that it can also serve as an idler, and the vibration and noise of the chain can be reduced.

  In addition to the effect of the chain cleaning mechanism according to any one of claims 1 to 5, the rotating brush has a width larger than the width of the chain. The entire width direction of the chain can be surely cleaned, and by having a diameter larger than the pitch of the chain, at least a part of the rotating brush is always in contact with the roller of the chain, so there is less influence from fluctuations in contact pressure In addition, the vibration and noise of the chain can be reduced.

A conveyor system according to a seventh aspect of the present invention is a conveyor system including the chain cleaning mechanism according to any one of the first to sixth aspects, wherein a driven sprocket among a plurality of sprockets drives the conveyor. The fixing base is fixed to a base member provided above the driven sprocket, and the driving means for driving the driving sprocket is fixed to the base member. By simply fixing to the fixed base, the relative positional relationship with the chain can be accurately fixed, so the configuration is simple and the rotating brush can always come into contact with the chain to clean the deposits. Therefore, it is not necessary to completely stop the drive and perform the cleaning work.
Further, the vibration and noise of the chain can be reduced by the elasticity of the rotating brush itself.

  In addition to the effect of the conveyor system according to claim 7, the conveyor system of the invention according to claim 8 is a scraper that is used in water, and the driven sprocket is fixed in water and fixed. Since the base and the cleaning means are arranged on the water, the rotating brush can always come into contact with the chain to clean the deposits. Therefore, the conveyor system having a scraper used in water containing sludge and the like. Even so, the chain and sprockets are prevented from being worn or rotated due to adhesion of impurities or dust, and corrosion or pitting caused by metal electrical or chemical action caused by adhesion of oil or the like (scum) is prevented. Is prevented, and the life of the chain is remarkably shortened or the chain is prevented from breaking early.

The side view of the chain cleaning mechanism which is one Example of this invention. The top view of the chain cleaning mechanism of FIG. The enlarged side view of the cleaning means part of the chain cleaning mechanism of FIG. The enlarged plan view of the cleaning means part of the chain cleaning mechanism of FIG.

  The present invention is a chain cleaning mechanism comprising a chain that travels around a plurality of sprockets, a cleaning unit provided in a linear traveling part of the chain, and a fixed base that fixes the cleaning unit. The cleaning means is in contact with the chain and rotates around the axis parallel to the plurality of sprockets, the brush holding arm that rotatably holds the rotating brush, and the brush holding arm on the fixed base. It has a connecting bar to be fixed, and the fixed base is fixed in relative position with at least one of the sprockets among the multiple sprockets. With simple structure, maintenance work is simplified and the chain deposits are always cleaned. Any specific embodiment may be used as long as it does.

  That is, the rotating brush of the chain cleaning mechanism of the present invention may be of any material, density, length, direction, etc., as long as it can clean the deposits on the chain.

Below, the basic structure of the chain cleaning mechanism 100 which is one Example of this invention is demonstrated based on drawing.
As shown in FIGS. 1 and 2, a chain cleaning mechanism 100 according to an embodiment of the present invention drives a drive sprocket S to a base member 101 provided above a water tank (not shown) such as a sewage treatment facility. A driving system 102 is fixed, and a chain C is wound around the driving sprocket S to provide a conveyor system for rotationally driving a driving wheel of a conveyor belt with a scraper provided in a water tank below the base member 101. Is provided.

The base member 101 is provided with an opening 103 through which the chain C can travel downward, and a fixed base 110 is fixed to the base member 101 so as to stand up around the opening 103.
The fixed base 110 is provided with a cleaning means 120 for the chain C, and a chain cover (not shown) is detachably provided above the upper part of the drive sprocket S by the chain cover when the conveyor system is in operation. .

  The cleaning unit 120 includes a rotary brush 121 rotatably supported on a rotary shaft 124 provided at one end of a pair of brush holding arms 122 and the other end of the pair of brush holding arms 122. And the intermediate part is connected by the connection bar 123, and it is comprised integrally.

  The connecting bar 123 is hollow and is formed so that the length in the width direction is the same as the width of the opening 103, and from one side of the long hole 111 provided on both sides of the opening 103 of the fixed base 110. The cleaning means 120 can be fixed to the fixed base 110 by inserting the fixing bolt 125 through the connecting bar 123 and tightening with the fixing nut 126 from the opposite side.

  The long holes 111 provided on both sides of the opening 103 are provided so as to extend in a direction in which the pressing amount of the rotating brush 121 against the chain C is variable, and the fixing position of the cleaning means 120 is adjusted and changed. It is made possible.

  As a result, the cleaning means 120 can be handled integrally with a simple structure, and installation and maintenance can be facilitated, and the position of the rotary brush 121 can be firmly secured to the optimum position by the two connecting bars 123. The rotating brush 121 always comes in contact with the chain C and can effectively clean the deposits.

Further, by setting the pressing amount according to the tension or slackness of the chain C, it becomes possible to further reduce the vibration and noise of the chain C.
Furthermore, by setting the cleaning unit 120 at the loose side where the slack of the chain C is likely to occur, the rotating brush 121 can also serve as an idler, and the vibration and noise of the chain C can be reduced.

Moreover, the width | variety of the rotating brush 121 has a width | variety larger than the width | variety of the chain C, and can clean the whole width direction of the chain C reliably.
Further, the diameter of the rotating brush 121 is larger than the pitch of the chain C, and at least a part of the rotating brush 121 is always in contact with the roller of the chain C. It becomes possible to reduce the vibration and noise of the chain C.

  As described above, according to the present invention, the effect is enormous, for example, it is possible to always clean the deposits on the chain while simplifying the work such as maintenance with a simple configuration.

Note that the rotating brush 121 has a large number of radially extending brush fibers, and in FIGS. 1 to 4, only the outermost diameter portion is simplified and shown in a simple cylindrical shape.
Further, the connecting bar 123 is solid, bolt holes are formed at both ends, and the fixing bolts are respectively screwed from the long holes 111 provided on both sides of the opening 103 of the fixing base 110 to be fastened and fixed. You may comprise as follows.

  Further, only one brush holding arm 122 may be used, and the rotating brush 121 may be supported in a cantilevered manner. In this case, the connecting bar 123 is shorter in the width direction than the width of the opening 103. Alternatively, the long hole 111 provided on one side of the opening 103 of the fixed base 110 may be fixed in a cantilever manner.

DESCRIPTION OF SYMBOLS 100 ... Chain cleaning mechanism 101 ... Base member 102 ... Driving means 103 ... Opening part 110 ... Fixed base 111 ... Long hole 120 ... Cleaning means 121 ... Rotary brush 122・ ・ ・ Brush holding arm 123 ・ ・ ・ Connection bar 124 ・ ・ ・ Rotating shaft 125 ・ ・ ・ Fixing bolt 126 ・ ・ ・ Fixing nut C ・ ・ ・ Chain S ・ ・ ・ Drive sprocket

Claims (8)

A chain cleaning mechanism comprising a chain that travels around a plurality of sprockets, a cleaning unit provided in a linear traveling part of the chain, and a fixed base that fixes the cleaning unit,
The cleaning means is in contact with the chain and rotates around a shaft parallel to the plurality of sprockets, a brush holding arm that rotatably holds the rotating brush, and the brush holding arm that is fixed. A connecting bar for fixing to the base,
The chain cleaning mechanism, wherein the fixed base is fixed at a relative position to at least one of the plurality of sprockets. Drive means for driving a drive sprocket among the plurality of sprockets is fixed to the base member,
The chain cleaning mechanism according to claim 1, wherein the fixed base is fixed to the base member. A pair of the brush holding arms are provided at both ends of the rotating shaft of the rotating brush,
The rotating brush is rotatably supported at one end of the pair of brush holding arms,
3. The chain cleaning mechanism according to claim 1, wherein the other end portion and the intermediate portion of the pair of brush holding arms are connected by the connecting bar. The connecting bar is screwed and fixed to a long hole provided in the fixed base,
The chain cleaning mechanism according to claim 3, wherein the long hole is provided in a direction in which a pressing amount of the rotating brush against the chain is variable.   The chain cleaning mechanism according to any one of claims 1 to 4, wherein the cleaning means is provided in a straight traveling portion on a loose side of the chain.   6. The chain cleaning mechanism according to claim 1, wherein the rotating brush has a width larger than a width of the chain and a diameter larger than a pitch of the chain. A conveyor system comprising the chain cleaning mechanism according to any one of claims 1 to 6,
A driven sprocket of the plurality of sprockets is provided on a drive wheel that drives a conveyor,
The fixed base is fixed to a base member provided above the driven sprocket;
A conveyor system, wherein a drive means for driving the drive sprocket is fixed to the base member. The conveyor is a scraper used in water,
The driven sprocket is disposed in water;
The conveyor system according to claim 7, wherein the fixed base and the cleaning unit are disposed on water.

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