JP2013133213A - Passenger conveyor driving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passenger conveyor driving device in which a position adjusting mechanism for adjusting the position of a machine bed is hardly damaged.SOLUTION: A driving device includes: a motor 12 for generating a driving force for the passenger conveyor; a reduction gear 14 for increasing the driving force output from the motor 12 and outputs it from an output shaft 14b; the machine bed 26 with the motor 12 and the reduction gear 14 mounted thereon; a support beam 23 fixed to a truss 16 of the passenger conveyor and for supporting the machine bed 26; a position adjusting mechanism 50a for adjusting the position of the machine bed 26 with respect to the support beam 23; a first wedge member 60 disposed in an interspace between the support beam 23 and the machine bed 26, and fixed to either of the support beam 23 or the machine bed 26; and a second wedge member 62 inserted between the other of the support beam 23 or the machine bed 26 and the first wedge member 60.

Description

  The present invention relates to a drive device for a passenger conveyor.

  A passenger conveyor driving device includes a motor that generates driving force for a passenger conveyor, a speed reducer that outputs the driving force output from the motor, and a machine bed on which the motor and the speed reducer are mounted. The driving force output from the machine is transmitted to the sprocket via the drive chain, and the drive sprocket circulates and moves the step chain connecting the steps.

  In the drive device of the passenger conveyor, in order to adjust the tension and elongation of the drive chain, a bolt protruding from the bottom cross beam spanned across the width of the truss bottom is brought into contact with the machine bed, A position adjustment mechanism that adjusts the position of the machine bed in the direction of movement of the step is provided (for example, see Patent Document 1 below).

  By the way, when the driving device drives the passenger conveyor, the first sprocket coupled to the output shaft of the speed reducer is pulled toward the driving sprocket by the tension of the driving chain, and thus the driving device having the position adjusting mechanism as described above. Then, the tension of the drive chain is concentrated on the bolt as a force for compressing the bolt of the position adjusting mechanism. Therefore, when the floor height of the passenger conveyor is high or when the passenger conveyor is inundated, the tension of the drive chain increases and a large compressive force acts on the bolt, causing the bolt to break. There is a problem that it becomes easy.

JP-A-10-194647

  This invention is made in view of the above point, and it aims at providing the drive device of the passenger conveyor which the position adjustment mechanism which adjusts the position of a machine bed does not damage easily.

  A driving device for a passenger conveyor according to an embodiment includes a motor that generates driving force for the passenger conveyor, a reduction gear that increases the driving force output from the motor and outputs the driving force, and the motor and the reduction gear. , A receiving beam fixed to a truss of a passenger conveyor and supporting the machine bed, a position adjusting mechanism for adjusting the position of the machine bed with respect to the receiving beam, the receiving beam and the machine bed A first wedge member disposed in the gap and fixed to one of the receiving beam and the machine bed, and a first wedge member inserted between the other of the receiving beam and the machine bed and the first wedge member. And two wedge members.

It is a side view which shows the drive device of the passenger conveyor which concerns on 1st Embodiment of this invention. It is a top view of the drive device of a passenger conveyor shown in FIG. It is a disassembled perspective view of the drive device of the passenger conveyor shown in FIG. It is the figure which expanded the principal part of FIG. It is the top view to which the principal part of the drive device of the passenger conveyor which concerns on 2nd Embodiment was expanded. It is the top view which expanded the principal part of the drive device of the passenger conveyor which concerns on 3rd Embodiment. It is the top view to which the principal part of the drive device of the passenger conveyor which concerns on 4th Embodiment was expanded.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the passenger conveyor drive device 10 in the present embodiment is a drive device that drives an escalator installed inclined across the upper and lower floors of a building. It is arrange | positioned inside the machine room 11 provided in the part.

  The drive device 10 includes a motor 12, a speed reducer 14, and a machine bed 26 on which the motor 12 and the speed reducer 14 are mounted. In the present embodiment, an escalator will be described as a passenger conveyor, but it may be a moving sidewalk drive device.

  The motor 12 generates a driving force for the passenger conveyor, and its rotating shaft 12 a is connected to the input shaft 14 a of the speed reducer 14 by the coupling 13 and outputs the driving force of the motor 12 to the speed reducer 14. The speed reducer 14 increases the driving force output from the motor 12 and outputs it from the output shaft 14 b of the speed reducer 14.

  The output shaft 14b of the speed reducer 14 protrudes toward one side W1 in the width direction W of the passenger conveyor, and the first sprocket 15 is connected to the tip portion thereof. That is, in the present embodiment, the first sprocket 15 is arranged close to one side in the width direction W of the passenger conveyor.

  A driving chain 20 is wound around the first sprocket 15 and the driving force output from the speed reducer 14 is transmitted to the second sprocket 24. As a result, the second sprocket 24 rotates to circulate and move the endless step chain 19 that connects the plurality of steps 22, and transports passengers who are on the passenger conveyor.

  2 and 3, the machine bed 26 is a rectangular plate-like member disposed at the bottom of the machine room 11, and a plate portion 18 on which the motor 12 and the speed reducer 14 are mounted on the upper surface, And a support frame 30 provided outside the plate portion 18.

  The support frame 30 includes a frame portion 31 that surrounds the side wall 18 a of the plate portion 18, and a lower support portion 32 that protrudes in a flange shape from the lower end of the frame portion 31 toward the inside, and is disposed inside the frame portion 31. The lower support portion 32 supports the bottom surface of the formed plate portion 18.

  The frame portion 31 presses the plate portion 18 disposed inside the frame portion 31 to one of the front and rear directions L corresponding to the moving direction of the step 22 (for example, the front approaching the second sprocket 24) L1. On the opposing surface of the mechanism 33, the second pressing mechanism 34 that presses one side in the width direction W (for example, the right side when the second sprocket 24 is viewed from the machine bed 26), and the side wall 18a of the plate portion 18. And anti-vibration materials 35 and 42 made of a rubber-like elastic body.

  The first pressing mechanism 33 includes a bolt that penetrates the frame portion 31 so as to be able to advance and retreat in the front-rear direction L, and a nut that is screwed to the bolt, and the tip of the bolt is attached to the rear side wall 18 a of the plate portion 18. The side wall in front of the plate portion 18 with the vibration-proof material 35 attached to the frame portion 31 interposed by abutting against the vibration-proof material 38 made of rubber-like elastic material and pressing the plate portion 18 forward L1. 18a is pressed and fixed to the frame part 31.

  The second pressing mechanism 34 includes a bolt that penetrates the frame portion 31 so as to be able to advance and retreat in the width direction W, and a nut that is screwed to the bolt. The left side wall) 18a abuts against the vibration isolating material 41 made of a rubber-like elastic body and presses the plate portion 18 to the right W1, thereby interposing the vibration isolating material 42 affixed to the frame portion 31. In this state, the left and right side walls 18a of the plate portion 18 are pressed and fixed to the frame portion 31.

  In the machine bed 26 having such a configuration, the plate portion 18 disposed inside the support frame 30 is moved back and forth while the vibration isolating materials 35 and 38 are interposed between the frame portion 31 and the bolts of the first pressing mechanism 33. It is clamped in the direction L, and is also clamped in the width direction W with the anti-vibration materials 41 and 42 interposed between the frame 31 and the bolts of the second pressing mechanism 34. Accordingly, the plate portion 18 is fixed to the inside of the support frame 30 while suppressing the vibration of the motor 12 and the speed reducer 14 from being transmitted to the support frame 30 via the plate portion 18.

  On the outside of the support frame 30 that constitutes the machine bed 26, a receiving beam 23 that is fixed to the bottom beam that constitutes the bottom of the truss 16 is provided.

  Specifically, the bottom beam constituting the bottom of the truss 16 connects the pair of left and right main beams 16a disposed along the moving direction of the step 22 (that is, the front-rear direction L) and the left and right main beams 16a. And a horizontal beam 16b spanned in the width direction W.

  The receiving beam 23 has a frame shape surrounding the side wall of the support frame 30 and is provided inside the left and right main beams 16a. The lower end of the receiving beam 23 projects in a flange shape toward the inside, has a substantially L-shaped cross section, and supports the bottom of the support frame 30 disposed inside the receiving beam 23.

  Further, a position adjustment mechanism that adjusts the position of the support frame 30 relative to the receiving beam 23 is provided between the receiving beam 23 and the support frame 30. The position adjusting mechanism includes a front / rear position adjusting mechanism 50a that adjusts the position of the support frame 30 in the front / rear direction L with respect to the receiving beam 23, and a left / right position adjusting mechanism 50b that adjusts the position of the support frame 30 in the width direction W with respect to the receiving beam 23. It consists of.

  The front / rear position adjusting mechanism 50a is provided with a bolt that protrudes in the front / rear direction L from the receiving beam 23 and abuts against the frame portion 31 of the support frame 30, and a nut that is screwed to the bolt, and adjusts the protrusion amount of the bolt. Then, the position of the support frame 30 in the front-rear direction L with respect to the receiving beam 23 is adjusted.

  The left / right position adjusting mechanism 50b is provided with a bolt that protrudes in the width direction W from the frame portion 31 of the support frame 30 and abuts against the receiving beam 23, and a nut that is screwed to the bolt, and adjusts the protruding amount of the bolt. Thus, the position of the support frame 30 in the width direction W with respect to the receiving beam 23 is adjusted.

  In the driving apparatus 10 having such a configuration, the first wedge member 60 and the gap S sandwiched between the support frame 30 constituting the machine bed 26 and the receiving beam 23 facing the front L1 of the support frame 30 A second wedge member 62 is disposed.

  Specifically, as shown in FIGS. 2 and 4, the first wedge member 60 and the second wedge member 62 are gaps S between the receiving beam 23 and the support frame 30, and are first in the plan view of the machine chamber 11. It is wound between the first sprocket 15 and the second sprocket 24, in other words, between the first sprocket 15 and the second sprocket 24, and is disposed below the drive chain 20.

  The first wedge member 60 is fixed to either one of the receiving beam 23 and the support frame 30 (in this embodiment, the receiving beam 23) by bolting or welding.

  In the first wedge member 60 fixed to the receiving beam 23, the surface 60a facing the support frame 30 is longer in the front-rear direction of the first wedge member 60 as it goes from one side W1 to the other side W2 in the width direction W of the passenger conveyor. The first wedge member 60 has a tapered shape that narrows toward the other side W2 in the width direction W.

  The second wedge member 62 is inserted between the other of the receiving beam 23 and the support frame 30 (in this embodiment, the support frame 30) and the inclined surface 60a of the first wedge member 60 fixed to the receiving beam 23. It is a member. The second wedge member 62 has a shape obtained by inverting the first wedge member 60 in the width direction W, that is, a tapered shape having an inclined surface 62a and narrowing toward one side W1 in the width direction W. It is inserted between the support frame 30 and the inclined surface 60 a of the first wedge member 60 while sliding on the frame 30.

  In the driving apparatus 10 of the present embodiment as described above, the position in the width direction W of the machine bed 26 with respect to the receiving beam 23 fixed to the truss 16 is adjusted by the left and right position adjusting mechanism 50b, and the position is received by the front and rear position adjusting mechanism 50a. By adjusting the position of the machine bed 26 in the front-rear direction L with respect to the beam 23, the second wedge member 62 is wound around the first sprocket 15 and the second sprocket 24 and the tension of the drive chain 20 is adjusted. The second wedge member 62 is inserted between the support frame 30 and the inclined surface 60a of the first wedge member 60 fixed to the receiving beam 23 while sliding on the support frame 30. 60 and surface contact.

  Thus, after the position adjustment of the machine bed 26 is completed, the second wedge member 62 is inserted between the first wedge member 60 fixed to the receiving beam 23 and the support frame 30, and the receiving beam 23, the support frame 30, and the like. Since the first wedge member 60 and the second wedge member 62 that are in surface contact with each other are disposed in the gap S, the tension of the drive chain 20 is not limited to the bolts constituting the front-rear position adjusting mechanism 50a, but also the first wedge member. 60 and the second wedge member 62 are also dispersed, so that the front / rear position adjusting mechanism 50a is not easily damaged.

  In addition, in the present embodiment, the first wedge member 60 and the second wedge member 62 are disposed between the first sprocket 15 and the second sprocket 24 in a plan view of the machine room 11, and are attached to the machine bed 26. Since it is disposed at a position where the tension of the drive chain 20 is most easily received, the tension of the drive chain 20 is more likely to act on the first wedge member 60 and the second wedge member 62 from the front / rear position adjustment mechanism 50a. Further, the front / rear position adjusting mechanism 50a is less likely to be damaged.

  In the present embodiment, the case where the machine bed 26 is divided into the plate portion 18 on which the motor 12, the speed reducer 14, and the like are mounted and the support frame 30 has been described, but the present invention is not limited to this. Instead, the machine bed 26 is not divided into the plate portion 18 and the support frame 30 and may be provided integrally.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG.

  In the present embodiment, as shown in FIG. 5, the second wedge member 62 is inserted between the inclined surface 60 a of the first wedge member 60 fixed to the receiving beam 23 and the support frame 30. The plate-like connecting member 70 is bolted to the first wedge member 60 and the second wedge member 62 in a state in which the support frame 30 and the first wedge member 60 are in surface contact with each other. The two wedge members 62 are connected by a connecting member 70.

  In the present embodiment, since the first wedge member 60 and the second wedge member 62 are connected and fixed by the connecting member 70, the first wedge member 60 and the second wedge member 62 may be displaced due to the tension of the drive chain 20 or the vibration generated from the motor 12 and the speed reducer 14. Absent.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG.

  In the present embodiment, as shown in FIG. 6, a bracket 81 fixed to the receiving beam 23, a bolt 82 protruding from the bracket 81 in the width direction W and having a tip abutting against the second wedge member 62, and a screw threaded on the bolt 82. A pressing mechanism 80 provided with a mating nut 83 is provided, and the second wedge member 62 is pressed in the insertion direction with respect to the first wedge member 60 by screwing the bolt 82.

  In this embodiment, since the second wedge member 62 can be pressed in the direction of insertion with respect to the first wedge member 60 by the screw operation of the bolt 82, there is no need to knock the second wedge member 62. The second wedge member 62 can be pushed between the first wedge member 60 and the support frame 30 with a small force, and the pushing operation can be easily performed even in a narrow space.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIG.

  In the present embodiment, as shown in FIG. 7, the bracket 91 fixed to the receiving beam 23, the bracket 92 fixed to the bracket 91 in the second wedge member 62 at a position facing the width direction W, and the receiving beam 23. A bolt 93 that passes through the bracket 91 of the second wedge member 62 and the bracket 92 of the second wedge member 62, a nut 94 that is attached to the bracket 91 and screwed to the bolt 93, and a nut 95 that is attached to the bracket 92 and screwed to the bolt 93. A push / pull mechanism 90 is provided. The push-pull mechanism 90 moves the second wedge member 62 in the direction W1 to be inserted into the first wedge member 60 and the pull-out direction W2 by screwing the bolt 93 back and forth.

  In this embodiment, the bolt 93 of the push-pull mechanism 90 is screwed to move the second wedge member 62 in the insertion direction W1 with respect to the first wedge member 60 and in the pulling direction W2. The second wedge member 62 can be pushed or removed with a small force, and the pushing or removing operation can be easily performed even in a narrow space.

  As mentioned above, although embodiment of this invention was described, these embodiment was shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

DESCRIPTION OF SYMBOLS 10 ... Drive apparatus 11 ... Machine room 12 ... Motor 14 ... Reduction gear 15 ... 1st sprocket 16 ... Truss 16a ... Main beam 16b ... Cross beam 18 ... Plate part 19 ... Step chain 20 ... Drive chain 22 ... Step 23 ... Receiving beam 24 ... second sprocket 26 ... machine bed 30 ... support frame 50a ... front / rear position adjustment mechanism 50b ... left / right position adjustment mechanism 60 ... first wedge member 62 ... second wedge member 70 ... connecting member 80 ... pressing mechanism 90 ... push-pull mechanism

Claims (5)

A motor that generates the driving force of the passenger conveyor;
A reducer that increases the driving force output from the motor and outputs it from the output shaft;
A machine bed on which the motor and the speed reducer are mounted;
A receiving beam fixed to a truss of a passenger conveyor and supporting the machine bed;
A position adjustment mechanism for adjusting the position of the machine bed with respect to the receiving beam;
A first wedge member disposed in a gap between the receiving beam and the machine bed, and fixed to one of the receiving beam and the machine bed;
A passenger conveyor drive device comprising a second wedge member inserted between the receiving beam and the other of the machine bed and the first wedge member. A first sprocket connected to the output shaft and rotating a second sprocket that circulates and moves the step chain via the drive chain;
2. The passenger conveyor drive device according to claim 1, wherein the first wedge member and the second wedge member are disposed between the first sprocket and the second sprocket in a plan view. .   The drive device for a passenger conveyor according to claim 1 or 2, further comprising a connecting member that connects the first wedge member and the second wedge member.   The driving device for a passenger conveyor according to any one of claims 1 to 3, further comprising a pressing mechanism that presses the second wedge member in a direction in which the second wedge member is inserted.   The passenger conveyor drive device according to any one of claims 1 to 3, further comprising a push-pull mechanism that pushes and pulls the second wedge member in a direction in which the second wedge member is inserted and a direction in which the second wedge member is pulled out.

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