KR100257308B1 - Apparatus for removing the clearance between roller and bush of steo chain before contacting sprocket to step chain of escalator - Google Patents

Abstract

PURPOSE: An apparatus for preventing abnormal noise in step chain rollers of a moving walk way is provided to remove the abnormal noise due to the compression of lubricating oil to enhance the riding comfort of passengers by rotating stage chain rollers through about 180° shortly before the stage chain engages with a drive sprocket or with a driven sprocket to eliminate the gaps created by gravity between a bush and rollers. CONSTITUTION: The apparatus has a stage chain roller element which rotates the stage chain roller(70,72) through about 180° shortly before the stage chain engages with the drive sprocket(56) or with the driven sprocket, to eliminate the gaps created by gravity between the bush and the roller, thus preventing noise occurring from the pressure exerted on the oil. Lubricating oil fills the cavity between the inner circumference of the chain roller and the outer circumference of the chain bolt.

Description

Step chain roller abnormal noise prevention device of moving walkway

The present invention is a step chain roller abnormality of the moving walkway to prevent the abnormal noise generated when the step chain applied to the moving walkway (hereinafter referred to as "moving walk") such as an escalator touches the driving or driven sprocket in advance. It relates to a noise prevention device.

In general, a moving walkway is a mechanism for carrying passengers continuously by being installed between floors or horizontally or inclinedly.

1 to 5 show a typical escalator 50 as an example of a moving walk. As shown in FIG. 1, a step 64 for carrying passengers and a stepped up vehicle in the upper flight room are provided. A drive motor 52 for providing a driving force to the 64, a handrail 66 continuously disposed at the left and right sides of the step 64 in the advancing direction, and a step 64 provided at an upper portion of the handrail 66; And a handrail 68 moving the same speed.

As shown in FIG. 2, the upper machine room includes a drive motor 52, a reducer 54 which is directly connected to the drive motor 52 to reduce the rotational force of the drive motor 52, and a drive sprocket connected to the reducer 54 ( 56 and a drive chain 61 connected to the coaxial of the drive sprocket 58 and the drive sprocket 56 are disposed, and the step 64 is moved by a step chain connected to the drive sprocket 56 and the driven sprocket. The guide rail is configured.

The guide rails include front wheel roller guide rails 74 and 80 for guiding the front wheel rollers 70 of step 64 and the rear wheel rollers of step 64 as shown in FIGS. The rear wheel roller guide rails 76 and 80 for guiding 72 and the rear wheel roller guide rails 76 and 78 for guiding the rear wheel rollers 72 of the step 64 are circularly moved.

Accordingly, when the driving sprocket 56 is driven by the driving motor 52, the step chain 100 rotates, and as the step chain 100 rotates, the step shaft 82 provided in the step 64 is rotated. Is connected to the step chain 100 to move the step 64. At this time, the front wheel roller 70 of step 64 is circularly moved along the front roller guide rails 74 and 80, and the rear wheel roller 72 is circularly moved along the rear roller guide rails 76 and 78. do.

In the conventional escalator 50 configured as described above, as shown in FIGS. 4 to 6, the step chain 100 includes a plurality of pairs of link plate pairs 102 extending in parallel with each other, and a link plate pair ( A plurality of pins 104 connecting the 102, rollers 110 provided around the pins 104 to engage the pitch of the drive sprocket 56, and the rollers 110 and the pins 104. It is composed of a bush 108 installed between, the step shaft 82 extending from the step 64 is inserted between the roller 110 and the roller 110, step 64 by the step chain 100 Towed).

At this time, the lubricating oil 200 is supplied between the bush 108 and the roller 110 of the pin 104 to maintain a state where oil is always filled.

The step chain 100 configured as described above is connected to the drive sprocket 56 and the driven sprocket (not shown) in a looped manner, and the step chain 100 passes through the driven sprocket and enters the drive sprocket 56. As shown in FIG. 6, the bush 108 and the roller 110 fall down from the pin 104 by their own weight, so that a gap (void) occurs between the bush 108 and the inner ring of the roller 110. As the lubricating oil 200 is accumulated in the gap.

In this state, when the step chain roller 110 is driven by the pitch of the driving sprocket 56 and receives the driving force, the roller 110 is lubricated oil 200 at the moment when the step chain 100 exceeds the reference line L, which receives the driving force. As pressurized), the lubricating oil 200 rapidly exits from the inner ring of the bush 108 and the roller 110, and at this time, abnormal noises are generated.

This abnormal noise is repeated every time the new roller 110 is bitten by the drive sprocket 56, it is transmitted to the passengers in the step 64 to give a discomfort.

In order to solve the above problems, these manufacturers drill holes through the entire pitch of the sprocket, insert an elastic body called a band buffer, and protrude it onto the driving sprocket, before the step chain touches the sprocket. The gap was eliminated and the sprocket was brought into contact.

However, this method has a problem in that a hole must be formed in the entire pitch of the sprocket, and a band buffer must be installed in the driving sprocket. The cost of the sprocket is excessive, and additional costs and time are required for repair. There is a problem.

The present invention was devised to solve the problems of the prior art as described above, and the step of reducing costs, facilitating work and maintenance by using a simple structure to prevent abnormal noise of the step chain roller, and semi-permanent use The purpose is to provide a moving walk that can prevent the noise of the chain roller.

The present invention thus provides a plurality of steps for providing a boarding surface on which a passenger boards; A pair of front wheel rollers provided for each step and rotatably connected to a lower portion of the front side in the movement direction of the step; A pair of rear wheel rollers provided at each step and rotatably connected to a lower rear side in a moving direction of the step; A loop type step chain connected to the step to move the step, wherein the step chain includes a plurality of link plate pairs arranged in parallel with each other at a predetermined interval, and the link plate pairs are parallel to each other A plurality of step chain rollers rotatably installed between the predetermined intervals and a plurality of pins installed through the respective step chain rollers and the link plate pair to rotatably support the chain rollers. And a lubricating oil is filled between the stepchain roller and the outer diameter of the pin; A drive sprocket for engaging a portion of the loop of the step chain and providing a rotational force for winding and rotating the step chain; A driven sprocket disposed opposite the drive sprocket and engaged with a part of a loop of the step chain to rotate by the step chain; A front wheel roller guide rail configured to provide a guide surface through which the front wheel rollers can be rolled and extended in the longitudinal direction of the moving walkway; A rear wheel roller guide rail which provides a guide surface through which the rear wheel roller can ride and roll, and extends in the longitudinal direction of the moving walkway; Rotating means fixed to a position adjacent to at least one of the drive sprocket and the driven sprocket of the front wheel roller guide rail, and the step chain roller to contact and rotate the step chain roller before it touches the drive sprocket or the driven sprocket It is achieved by providing a moving walk comprising a.

The step chain roller rotating means is made of a hard brush or is characterized in that consisting of a roller rotation pad member for providing a running surface on which the step chain roller can ride.

The present invention also provides a plurality of steps for providing a boarding surface for passengers; A pair of front wheel rollers provided for each step and rotatably connected to a lower portion of the front side in the movement direction of the step; A pair of rear wheel rollers provided at each step and rotatably connected to a lower rear side in a moving direction of the step; A rotation shaft provided at each step, the rotation shaft supporting the front wheel roller rotatably; A rotating shaft provided at each step to support the rear wheel roller rotatably; A loop type step chain connected to the step to move the step, wherein the step chain includes a plurality of link fleet pairs arranged in parallel with each other at a predetermined interval, and the link plate pair is parallel to each other A plurality of chain rollers rotatably installed between the predetermined intervals so as to maintain the plurality of chain rollers, a plurality of pins rotatably supporting the chain rollers and the link plate pair, and rotatably supporting the chain rollers; A plurality of bushes installed between the chain roller and the outer diameter of the pin, wherein lubricating oil is filled between the inner diameter of the chain roller and the outer diameter of the bush, and between the outer diameter of the pin and the inner diameter of the bush; A drive sprocket for engaging a portion of the loop of the step chain and providing a rotational force for winding and rotating the step chain; A driven sprocket disposed opposite the drive sprocket and engaged with a part of a loop of the step chain to rotate by the step chain; A front wheel roller guide rail configured to provide a guide surface through which the front wheel rollers can be rolled and extended in the longitudinal direction of the moving walkway; A rear wheel roller guide rail which provides a guide surface through which the rear wheel roller can ride and roll, and extends in the longitudinal direction of the moving walkway; A rotation means fixed to an adjacent position of at least one of the drive sprocket and the driven sprocket in the front wheel roller guide rail so as to contact and rotate the chain roller before the chain roller contacts the drive sprocket or the driven sprocket. This is accomplished by providing a moving walk.

The step chain roller rotating means is made of a hard brush or is characterized in that consisting of a roller rotation pad member for providing a running surface on which the step chain roller can ride.

1 is a perspective view illustrating a general escalator structure.

2 is a plan view showing a driving motor unit of the escalator shown in FIG.

3 is a block diagram showing the step roller guide rail of the escalator shown in FIG.

4 is an operational state diagram showing the configuration and operation of a conventional drive sprocket wheel and step chain.

5 is a plan view of the main portion in the direction A of FIG.

6 is a working state diagram showing in detail the operation of the step chain roller according to the prior art.

7 is an operational state diagram showing the configuration and operation of a drive sprocket and step chain in which the step chain roller rotating means of the present invention is installed.

8 is a plan view of main parts of the direction A in FIG. 7;

9 is an operational state diagram showing in detail the operation of the step chain roller by the step chain roller rotating means of the present invention.

10 is an operational state diagram showing the configuration and operation of a driven sprocket and step chain provided with the step chain roller rotating member of the present invention.

11 is a configuration and operation state of the step chain roller rotation means according to another embodiment of the present invention.

FIG. 12 is a front view showing the step chain roller rotating means illustrated in FIG.

13 is a side view of FIG.

* Explanation of symbols for the main parts of the drawings

10, 20: support bracket 12: hard brush

21: through hole 22: spring

24: pin 26: movable support plate

28: roller rotation pad member 56: drive sprocket

62: driven sprocket 74, 80: front wheel roller guide rail

76, 78: rear wheel guide rail 100: step chain

102 link plate pair 104 pin

108: bush 110: step chain roller

200: lubricating oil

Hereinafter, each embodiment of the moving walk to prevent the noise of the step chain roller according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 7 is an operational state diagram showing the construction operation of the drive sprocket and the step chain in which the step chain roller rotating means of the present invention is constructed, and FIG. 8 is a plan view of the main portion in the A direction of FIG.

As shown in the present invention, the roller 110 of the step chain 100 on the front wheel guide rail 74 for guiding the front wheel roller 70 of the step chain 100 before the roller 110 touches the drive sprocket 56. Step chain roller rotation means was installed so that it could rotate about half a).

The step chain roller rotating means includes a support bracket (10) having one end fixed to the front wheel roller guide rail (74) adjacent to the drive sprocket (56) and a hard brush (12) fixed at the other end of the support bracket (10). Is done.

The operation and effects of the moving walkway that can prevent such a step chain roller noise will be described.

When the drive sprocket 56 is driven by the drive motor, the step chain 100 rotates, and as the step chain 100 rotates, the step extends from both ends of the step 64 as shown in FIG. The shaft 82 is connected between the rollers 110 of the step chain 100 to move the step 64.

At this time, the front wheel roller 70 of step 64 is circulated along the front roller guide rails 74 and 80, and the rear wheel roller 72 of the step is circulated along the rear roller guide rails 76 and 78. Will move.

As shown in FIG. 9, the bush 108 and the roller 110 fall down from the pin 104 by their own weight in the section where the step chain 100 passes through the driven sprocket and enters the driving sprocket 56. When the gap is generated between the outer diameter of the bush 108 and the inner diameter of the roller 110 and between the inner diameter of the bush 108 and the outer diameter of the pin 104, the lubricating oil 200 is accumulated in the gap. As the roller 110 of the chain 100 is in contact with the wet brush 12 immediately before the pitch of the drive sprocket 56, the step chain roller 110 is about half a revolution.

Accordingly, the portion filled with the lubricating oil 200 is directed upward, and in this state, the roller 110 is snapped to the pitch of the driving sprocket 56, so that the roller 110 is used to remove the lubricating oil 200. Abnormal noise generated by pressurization is not generated.

10 is a diagram illustrating an operation state diagram of the driven sprocket 62 and the step chain 100 in which the step chain roller rotation means of the present invention is adjacently installed.

This shows the step chain roller rotation means in the situation that the escalator 50 is moved from the upper floor to the lower floor.

10 is contrary to the above description, in the section where the step chain 100 enters the driven sprocket wheel 62 through the driving sprocket wheel 56, the bush 108 and the roller 110 are driven by their own weight. 104 is drooped down, so that the bush 108 and the roller 110 are drooped down from the pin 104 of the step chain by their own weight, between the outer diameter of the bush 108 and the inner diameter of the roller 110. And the lubricating oil 200 is accumulated in the gap generated between the inner diameter of the bush 108 and the outer diameter of the pin 104, so that the roller 110 of the step chain 100 snaps to the pitch of the driven sprocket 62. The step chain roller 110 makes about half a turn while being in contact with the hard brush 12 immediately before, so that the portion filled with the lubricating oil 200 faces upward, and in this state, the roller 110 The roller 110 is generated by pressing the lubricating oil 200 due to the pitch of the driven sprocket 62. The noise is no longer generated.

11 is a configuration and operation state diagram of the step chain roller rotation means according to another embodiment of the present invention, Figure 12 is a front view showing the step chain roller rotation means illustrated in Figure 11, Figure 13 is a side view of FIG. It is shown.

11 to 13, another embodiment of the step chain roller rotating means according to the present invention includes the front wheel roller guide rail adjacent to at least one of the drive sprocket 56 and the driven sprocket 62 ( A support bracket 20 fixed to a portion of 74 and a plurality of through-holes 21 are formed in the upper surface of the support bracket 20, and are installed on the support bracket 20 and are supported by the support bracket 20. A movable support plate 26 movable in a vertical direction between a position proximate to an upper surface and a position away from the upper surface of the upper surface 20, one end fixed to the bottom surface of the movable support plate 26 and the through hole from the one end thereof. A plurality of pins 24 extending toward 21, a plurality of springs 22, which are elastic members installed around the pins to elastically support the movable support plate 26, and fixed to an upper portion of the movable support plate; Convex upward Bring the surface consists of a roller rotating pad member 28 to provide a driving side with the step chain roller 110 can roll riding.

One side of the support bracket 20 forms a fastening hole 23 to be attached to the front wheel roller guide rail 74 so that the fastening height can be fastened by using a screw 25 and formed long in the longitudinal direction. Make it easy to change.

According to the step chain roller rotating means configured as described above, as shown in FIG. 11, the bush 108 and the roller 110 in the section where the step chain 100 passes through the driven sprocket 62 and enters the driving sprocket 56. ) Is brought into contact with the roller rotation pad member 28 just before the roller 110 of the step chain 100 snaps down from the pin 104 of the step chain by its own weight, That is, the roller 110 as a cloud rides on the upper running surface convex upward of the roller rotation pad member 28 is about half a revolution. Accordingly, the portion filled with the lubricating oil 200 is directed upward, and in this state, the roller 110 is caught by the pitch of the driving sprocket 56, and the roller 110 pressurizes the lubricating oil 200. No abnormal noise is generated.

As described above, the present invention allows the rollers constituting the step chain to be rotated about halfway by the step chain roller rotating means immediately before the step chain is bitten by the driving or driven sprocket, thereby eliminating the oil gap between the bush and the roller generated by its own weight. It eliminates the abnormal noise generated by pressurizing the lubricating oil, thereby improving the riding comfort of the moving walkway and not causing noise damage around the moving walkway, and simplifying the construction of the step chain roller rotating means to reduce the manufacturing cost. It has the effect of reducing the cost of maintenance and maintenance.

Claims (10)

The moving walk includes: a plurality of steps for providing a boarding surface on which a passenger boards; A pair of front wheel rollers provided for each step and rotatably connected to a lower portion of the front side in the movement direction of the step; A pair of rear wheel rollers provided at each step and rotatably connected to a lower rear side in a moving direction of the step; A loop type step chain connected to the step to move the step, wherein the step chain includes a plurality of link plate pairs arranged in parallel with each other at a predetermined interval, and the link plate pairs are parallel to each other And a plurality of chain rollers rotatably installed between the predetermined intervals so as to maintain the plurality of chain rollers, and a plurality of pins rotatably supporting the chain rollers and the link plate pairs to rotatably support the chain rollers. A lubricating oil is filled between the chain roller and the outer diameter of the pin; A drive sprocket for engaging a portion of the loop of the step chain and providing a rotational force for winding and rotating the step chain; A driven sprocket disposed opposite the drive sprocket and engaged with a part of the loop of the step chain to rotate by the step chain; A front wheel roller guide rail configured to provide a guide surface through which the front wheel rollers can be rolled and extended in the longitudinal direction of the moving walkway; A rear wheel roller guide rail which provides a guide surface through which the rear wheel roller can ride and roll, and extends in the longitudinal direction of the moving walkway; A rear wheel roller guide rail which provides a guide surface through which the rear wheel roller can ride and roll, and extends in the longitudinal direction of the moving walkway; A rotation means fixed to an adjacent position of at least one of the drive sprocket and the driven sprocket in the front wheel roller guide rail so as to contact and rotate the chain roller before the chain roller contacts the drive sprocket or the driven sprocket. Step chain roller abnormal noise prevention device of moving walkway, characterized in that. 2. The abnormal noise preventing device of a step chain roller of a moving walkway according to claim 1, wherein said rotating means is a hard brush. According to claim 1, wherein the rotating means includes a support bracket, one end of which is fixed to the portion of the front wheel roller guide rail adjacent to any one of the drive sprocket and the driven sprocket; The step chain roller abnormal noise of the moving walkway comprising a hard brush which is fixed to the other end of the support bracket and extends upwardly to contact and rotate the step chain roller approaching any one of a drive sprocket or a driven sprocket. Prevention device. According to claim 1, wherein the rotating means is a step chain roller abnormal noise prevention device of a moving walkway, characterized in that the roller rotation pad member providing a running surface for the step chain roller to ride and roll. According to claim 1, The rotating means includes a support bracket fixed to the portion of the front wheel roller guide rail adjacent to any one of the drive sprocket and the driven sprocket; Wherein a plurality of through holes are drilled in the upper surface of the support bracket; A movable support plate movable vertically between a position proximate the upper surface of the support bracket and a position away from the upper surface; A plurality of pins having one end fixed to the bottom of the movable support plate and the other end extending from the one end toward the through hole; An elastic member installed on each of the pins to elastically support the movable support plate; An abnormal noise of the step chain roller of a moving walkway comprising a roller rotating pad member fixed to an upper portion of the movable support plate and having an upper surface convex upward to provide a running surface through which the step chain roller can ride and roll. Prevention device. The moving walk includes: a plurality of steps for providing a boarding surface on which a passenger boards; A pair of front wheel rollers provided for each step and rotatably connected to a lower portion of the front side in the movement direction of the step; A pair of rear wheel rollers provided at each step and rotatably connected to a lower rear side in a moving direction of the step; A rotation shaft provided at each step, the rotation shaft supporting the front wheel roller rotatably; A rotating shaft provided at each step to support the rear wheel roller rotatably; Here, a loop type step chain connected to the step to move the step, wherein the step chain is a plurality of link plate pairs arranged in parallel with each other at a predetermined interval and the link plate pair A plurality of chain rollers rotatably installed between the predetermined intervals so as to be parallel to each other, and a plurality of pins installed through the respective chain rollers and the link plate pair to rotatably support the chain rollers; And a plurality of bushes installed between the chain roller and the outer diameter of the pin, wherein lubricating oil is filled between the inner diameter of the chain roller and the outer diameter of the bush, and between the outer diameter of the pin and the inner diameter of the bush. ; A drive sprocket for engaging a portion of the loops of the step chain and providing a rotational force to grab and rotate the step chain; A driven sprocket disposed opposite the drive sprocket and engaged with a part of a loop of the step chain to rotate by the step chain; A front wheel roller guide rail configured to provide a guide surface through which the front wheel rollers can be rolled and extended in the longitudinal direction of the moving walkway; A rear wheel roller guide rail which provides a guide surface through which the rear wheel roller can ride and roll, and extends in the longitudinal direction of the moving walkway; Rotating means fixed to an adjacent position of at least one of the drive sprocket and the driven sprocket of the front wheel roller guide rail, and the chain roller contacts and rotates before the chain roller touches the drive sprocket or the driven sprocket. Step chain roller abnormal noise prevention device of a moving walk comprising a. 7. The abnormal noise preventing device of a step chain roller of a moving walkway according to claim 6, wherein the rotating means is a hard brush. 7. The apparatus of claim 6, wherein the rotating means comprises: a support bracket having one end fixed to a portion of the front wheel roller guide rail adjacent to any one of a drive sprocket and a driven sprocket; The step chain roller abnormal noise of the moving walkway comprising a hard brush which is fixed to the other end of the support bracket and extends upwardly to contact and rotate the step chain roller approaching any one of a drive sprocket or a driven sprocket. Prevention device. 7. The apparatus of claim 6, wherein the rotating means is a roller rotating pad member that provides a running surface for the step chain roller to ride and roll. 7. The apparatus of claim 6, wherein the rotating means comprises: a support bracket fixed to a portion of the front wheel roller guide rail adjacent to any one of a drive sprocket and a driven sprocket; Wherein a plurality of through holes are drilled in the upper surface of the support bracket; A movable support plate movable vertically between a position proximate the upper surface of the support bracket and a position away from the upper surface; A plurality of pins having one end fixed to the bottom of the movable support plate and the other end extending from the one end toward the through hole; An elastic member installed on each of the pin circumferences to elastically support the movable support plate; An abnormal noise of the step chain roller of a moving walkway comprising a roller rotating pad member fixed to an upper portion of the movable support plate and having an upper surface convex upward to provide a running surface through which the step chain roller can ride and roll. Prevention device.

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