CN107401964B - Centering device and centering method for elevator traction machine - Google Patents

Centering device and centering method for elevator traction machine Download PDF

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Publication number
CN107401964B
CN107401964B CN201710113212.4A CN201710113212A CN107401964B CN 107401964 B CN107401964 B CN 107401964B CN 201710113212 A CN201710113212 A CN 201710113212A CN 107401964 B CN107401964 B CN 107401964B
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CN
China
Prior art keywords
plumb line
traction sheave
traction
elevator
position adjusting
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CN201710113212.4A
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Chinese (zh)
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CN107401964A (en
Inventor
筱原大典
大森信克
佐藤敦雄
织田信幸
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Hitachi Building Systems Co Ltd
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Hitachi Building Systems Co Ltd
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Priority to JP2016100955A priority Critical patent/JP6568823B2/en
Priority to JP2016-100955 priority
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Publication of CN107401964A publication Critical patent/CN107401964A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04Driving gear ; Details thereof, e.g. seals

Abstract

The invention aims to provide a centering device of an elevator traction machine with excellent transportability and storability. The centering device for an elevator hoisting machine is a centering device for an elevator hoisting machine, which has a traction sheave around which a main rope connected to a car is wound and a guide sheave around which the main rope is wound, and includes: a fixing part installed at a side surface of the traction sheave, and positioning the plumb line at a certain distance from the side surface of the traction sheave; a position adjusting part which is installed on the side surface of the guide wheel and adjusts the distance between the guide wheel and the plumb line under the state of clamping the plumb line; and a hammer attached to an end of the plumb line and configured to apply tension to the plumb line.

Description

Centering device and centering method for elevator traction machine
Technical Field
The invention relates to a centering device of an elevator traction machine.
Background
A general elevator includes a hoisting machine having a traction sheave around which a main rope is wound, and the hoisting machine rotates the traction sheave to raise and lower a car and a counterweight bucket via the main rope. The main rope wound around the traction sheave is often wound around a guide sheave (a rope sheave) so as to hang down at a predetermined position later.
If these traction sheave and guide sheave are not installed in parallel, it becomes a factor of wear deterioration of the main rope, and therefore, it is necessary to perform centering work, that is, to measure the parallelism of both and to perform position adjustment.
As a conventional method for performing centering, there is proposed a method in which a long centering jig is attached between two wheels, and the distance between the centering jig and each wheel is adjusted to perform centering of the two wheels (see patent document 1).
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 11-63905
Disclosure of Invention
Problems to be solved by the invention
However, in order to use the centering jig of patent document 1 for centering the elevator hoisting machine, it is necessary to prepare a long centering jig having a distance substantially equal to the distance between the traction sheave and the guide sheave, and there are the following inconveniences: the elevator has poor transportability to the installation site, and requires a large storage space.
The present invention has been made to solve the above-described inconvenience, and an object of the present invention is to provide a centering device for an elevator hoisting machine, which is excellent in transportability and storability.
Means for solving the problems
In order to achieve the above object, an elevator hoisting machine centering device according to the present invention is an elevator hoisting machine centering device including a traction sheave around which a main rope coupled to a car is wound and a guide sheave around which the main rope is wound, the elevator hoisting machine centering device including: a fixing part installed at a side surface of the traction sheave, and positioning the plumb line at a certain distance from the side surface of the traction sheave; a position adjusting part which is installed on the side surface of the guide wheel and adjusts the distance between the guide wheel and the plumb line under the state of clamping the plumb line; and a hammer attached to an end of the plumb line and configured to apply tension to the plumb line.
Effects of the invention
According to the present invention, it is possible to provide a centering device for an elevator hoisting machine, which is excellent in transportability and storability.
Drawings
Fig. 1 is a perspective view showing an overall structure of a centering device for an elevator hoisting machine according to an embodiment.
Fig. 2A is a plan view showing the entire structure of the centering device of fig. 1 (the guide wheels are four-grooved).
Fig. 2B is a plan view showing the entire structure of the centering device of fig. 1 (the guide wheel is a three-groove).
Fig. 3A is a perspective view of the fixing portion 7.
Fig. 3B is a front view of the fixing portion 7.
Fig. 3C is a bottom view of the fixing portion 7.
Fig. 3D is a side view of the fixing portion 7.
Fig. 4A is a perspective view of the scale table 8.
Fig. 4B is a plan view of the mounting plate 8 a.
Fig. 4C is a side view of the mounting plate 8 a.
Fig. 4D is a rear view of the mounting plate 8 a.
Fig. 5A is a plan view of the position adjustment unit 9.
Fig. 5B is a perspective view of the position adjustment portion 9.
Fig. 5C is a perspective view of the position adjustment portion 9.
Fig. 5D is a front view of the position adjustment portion 9.
Fig. 5E is a rear view of the position adjustment portion 9.
Fig. 6 is a plan view showing a centering sequence of the centering device.
Description of the symbols
1-main rope, 2-traction sheave, 2 a-traction sheave side, 3-guide sheave, 3 a-guide sheave side, 4-plumb main body, 5-plumb line, 6-hammer, 7-fixing portion, 7 a-magnet portion, 7 b-positioning portion, 7 c-notch portion, 8-index table, 8 a-mounting plate, 81 a-magnet portion, 8 b-index portion, 81 b-connecting member, 82 b-scale portion, 9-position adjusting portion, 9 a-position adjusting stopper portion, 91 a-groove portion, 92 a-shaft, 92 b-nut, 9 c-magnet portion, 9 d-base plate, 9 f-mounting plate.
Detailed Description
Hereinafter, a structure of a centering device for an elevator hoisting machine according to an embodiment of the present invention will be described with reference to the drawings.
Fig. 1 is a perspective view showing the overall configuration of the centering device of the present embodiment, and fig. 2 is a plan view thereof. The elevator of the present embodiment is configured such that a car, not shown, and a counterweight are coupled by main ropes 1, and the main ropes 1 are driven by a traction sheave 2 of a hoisting machine, thereby raising and lowering the car. In addition, a guide sheave 3 is provided adjacent to the traction sheave 2 so that the main ropes 1 hang down to appropriate positions.
As described above, in order to suppress wear deterioration of the main ropes 1, it is necessary to adjust the traction sheave 2 and the guide sheave 3 so as to be parallel to each other or so that the positional relationship therebetween falls within a predetermined normal value. Therefore, in the present embodiment, the centering and fixing of both are performed using a centering device whose overall configuration is shown in the perspective view of fig. 1.
As shown in fig. 1 and 2, the centering device includes: a plumb main body 4 detachably fixed to the traction wheel side surface 2 a; a plumb line 5 led out from the plumb main body 4; a hammer 6 provided at the tip of the plumb line 5 and applying tension to the plumb line 5; a fixing part 7 for fixing the plumb line 5 drawn out from the plumb main body 4 at a predetermined distance (for example, 5mm) from the side surface 2a of the traction sheave; a scale table 8 detachably fixed to the traction sheave side surface 2a and measuring a distance between the plumb line 5 hanging from the fixing portion 7 and the traction sheave side surface 2 a; and a position adjusting portion 9 provided on the guide wheel side surface 3a and engaged with the plumb line 5. Fig. 2A shows a case where the guide wheel 3 has four grooves, and fig. 2B shows a case where the guide wheel 3 has three grooves. As can be seen from these, even when the guide wheels 3 have different thicknesses, the plumb line 5 can be engaged with the position adjusting portions 9 at the same position by adjusting the projecting amounts of the position adjusting portions 9.
First, the fixing unit 7 will be described in detail with reference to fig. 3. As shown in the front view, the bottom view, and the side view of fig. 3B to 3D, the fixing portion 7 having a substantially コ shape is detachably fixed to the hoisting wheel side surface 2a by the magnet portions 7a embedded at two locations in the bottom surface thereof. Further, the notch portion 7c is provided with a rod-shaped positioning portion 7b, and the plumb line 5 can be positioned at a predetermined distance (for example, 5mm) from the sheave side surface 2a as shown in the perspective view of fig. 3A by bringing the plumb line 5 into contact with the positioning portion 7 b. In the present embodiment, the positioning portion 7b is formed in a rod shape, and the contact area between the plumb line 5 and the positioning portion 7b is reduced, thereby reducing the frictional resistance generated on the contact surface between the two, but if the shape of the notch portion 7c itself is reduced, the positioning portion 7b may be omitted from the fixing portion 7.
Next, the scale base 8 will be described in detail with reference to fig. 4. As shown in fig. 4A, the scale 8 is formed by coupling the attachment plate 8a and the scale portion 8b via the coupler 81b of the attachment plate 8 a. In the present embodiment, the coupler 81b is attached to the metallic scale portion 8b as a magnet. As shown in the top view, the side view, and the rear view of fig. 4B to 4D, the substantially L-shaped attachment plate 8a can be detachably fixed to the hoisting wheel side surface 2a by the magnet portion 81a embedded in the base. As shown in fig. 4A, the scale portion 8b is provided with a scale portion 82b, and the distance between the sheave side surface 2a and the plumb line 5 can be measured using the scale portion 82 b. Although not shown, the scale portion 82b is provided on both surfaces of the scale portion 8b, and the scale can be read from either the front or back.
Next, the position adjustment unit 9 will be described in detail with reference to fig. 5. As shown in fig. 5A, the position adjustment portion 9 is composed of three members, i.e., a position adjustment stopper portion 9a, a base plate 9d, and a mounting plate 9 f. As shown in the perspective views, front views, and rear views of fig. 5B to 5E, the position adjustment portion 9 can be detachably fixed to the guide wheel side surface 3a by the magnet portions 9c embedded in three positions of the substantially T-shaped attachment plate 9 f. In fig. 5B, the position adjustment stopper portion 9a is attached to the right nut 92B, but the position adjustment stopper portion 9a may be attached to the left nut 92B depending on the shape of the guide wheel 3 and the attachment position of the position adjustment portion 9.
As shown in fig. 5A, the position adjustment stopper 9a is provided with a plurality of grooves 91a for engaging the plumb line 5 and a shaft 92a screwed to a nut 92 b. By rotating the shaft 92a, the amount of projection of the position adjustment stopper portion 9a can be adjusted. With this configuration, the projecting amount of the position adjustment stopper portion 9a can be freely set within the allowable range of the parallelism between the traction sheave 2 and the guide sheave 3.
Using fig. 6, the procedure of centering until the traction sheave 2 and the guide sheave 3 of the elevator hoisting machine are arranged in parallel using the centering device constituted by the fixing portion 7, the scale 8, and the position adjusting portion 9 is described.
First, the plumb main body 4 is fixed by magnetic attraction to the upper portion of the sheave side surface 2a (fig. 6 (a)), and then the plumb line 5 drawn out from the plumb main body 4 is pressed by the positioning portion 7b of the fixing portion 7 mounted so as to straddle it, and the positioning is maintained at a certain distance (e.g., 5mm) from the sheave side surface 2a (fig. 6 (b)).
Then, the fixed position adjusting part 9 is magnetically attracted to the edge part of the guide sheave side surface 3a opposite to the traction sheave 2. Then, the plumb line 5 is further drawn out and engaged with the groove 91a of the position adjustment portion 9, and the weight 6 is attached to the tip end thereof to apply tension to the plumb line 5 (fig. 6 (c)). Then, the scale table 8 is fixed by magnetic attraction to the edge portion of the side surface 2a of the sheave on the side of the guide sheave 3 (fig. 6 (d)). As can be seen from the figure, the hoisting wheel side surface 2a is not parallel to the plumb line 5 at this time.
Then, the distance between the plumb line 5 and the side surface 3a of the guide wheel is adjusted by adjusting the amount of projection of the position adjustment stopper portion 9a, and the plumb line 5 is spaced apart from the side surface 2a of the traction wheel by a predetermined distance (for example, 5mm) at the position of the scale base 8. That is, the distance between the traction sheave side surface 2a and the plumb line 5 is a constant distance between the fixing portion 7 and the index table 8, and the plumb line 5 is disposed in a positional relationship of being laid in parallel on the traction sheave side surface 2a, and the plumb line 5 can be used as a reference for centering operation of the elevator hoisting machine (fig. 6 (e)).
Finally, the distance between the guide wheel side surface 3a and the plumb line 5 (the reference for centering) is measured at least two locations, and the plumb line 5 and the guide wheel 3 can be made parallel by adjusting the guide wheel 3 to a normal value. Thus, the traction wheel side surface 2a can be made parallel to the guide wheel side surface 3a, so that the centering adjustment is not required any more, and the operation is completed (fig. 6 (f)).
As described above, in the present embodiment, the centering device of the elevator hoisting machine is formed of the weight-reduced structure of the plumb body 4, the fixing portion 7, and the position adjusting portion 9, and is excellent in transportability and storability, and the centering adjustment work can be performed using such a centering device.
In the above embodiment, the scale 8 is used when the traction sheave 2 is parallel to the plumb line 5 (see fig. 6(e)), but the scale 8 may not be used. In this case, in the above embodiment, the distance between the traction sheave 2 and the plumb line 5 may be manually measured at the position where the scale base 8 is provided, and the amount of projection of the position adjustment portion 9 may be adjusted so that the distance becomes a predetermined distance (for example, 5 mm).

Claims (5)

1. A centering device of an elevator traction machine, the elevator traction machine comprises: a traction sheave around which a main rope connected to the car is wound; and a guide pulley for winding the main rope,
the centering device for an elevator hoisting machine is characterized by comprising:
a fixing part installed at a side surface of the traction sheave, and positioning the plumb line at a certain distance from the side surface of the traction sheave;
a position adjusting part which is installed on the side surface of the guide wheel and adjusts the protruding amount of the position adjusting part under the state that the plumb line is clamped so that the distance between the traction wheel and the plumb line is equal at the fixing part and the other part; and
and a weight attached to an end of the plumb line and configured to apply tension to the plumb line.
2. The centering device for an elevator hoisting machine according to claim 1, further comprising:
a plumb main body which is mounted on a side surface of the traction sheave and supplies the plumb line; and
and a scale table which is installed on a side surface of the traction sheave and measures a distance between the side surface of the traction sheave and the plumb line.
3. The centering device of an elevator traction machine according to claim 2,
the fixing portion, the scale table, and the position adjusting portion are fixed to the traction sheave or the guide sheave by magnetic attraction by means of magnet portions provided to the fixing portion, the scale table, and the position adjusting portion.
4. A centering method of an elevator traction machine, the elevator traction machine comprises: a traction sheave around which a main rope connected to the car is wound; and a guide pulley for winding the main rope,
the centering method of the elevator traction machine described above is characterized in that,
a plumb main body for supplying plumb lines is arranged on the side surface of the traction sheave,
a fixing part for positioning the plumb line at a certain distance from the side surface of the traction sheave is arranged on the side surface of the traction sheave,
a position adjusting part is arranged on the side surface of the guide wheel, the position adjusting part adjusts the protruding amount of the position adjusting part under the state of clamping the plumb line,
a hammer for applying tension to the plumb line is mounted on the end of the plumb line,
the position adjusting part is adjusted in a manner that the distance between the traction sheave and the plumb line is equal between the fixing part and the other part,
the position of the guide wheel is adjusted so that the distances between the guide wheel and the plumb line are equal at a plurality of positions.
5. The method for centering an elevator traction machine according to claim 4,
after the hammer is installed, a scale table for measuring the distance between the side surface of the traction sheave and the plumb line is installed on the side surface of the traction sheave,
the position adjusting unit is adjusted so that the distance between the traction sheave and the plumb line is equal between the fixed unit and the scale.
CN201710113212.4A 2016-05-20 2017-02-28 Centering device and centering method for elevator traction machine Active CN107401964B (en)

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Application Number Priority Date Filing Date Title
JP2016100955A JP6568823B2 (en) 2016-05-20 2016-05-20 Elevator hoisting machine centering device and centering method
JP2016-100955 2016-05-20

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110615340B (en) * 2019-09-17 2021-02-12 浙江尼邦电梯有限公司 Traction sheave capable of reducing displacement deviation of traction sheave

Citations (5)

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JPS5493537A (en) * 1977-12-29 1979-07-24 Mitsubishi Electric Corp Method of installing hoist and deflector wheel of elevator
JPH05139657A (en) * 1991-11-20 1993-06-08 Mitsubishi Electric Corp Device for holding plumb wire for work of installing elevator
JPH10167613A (en) * 1996-12-04 1998-06-23 Hitachi Building Syst Co Ltd Installation device for elevator guide rail
CN103925862A (en) * 2014-05-07 2014-07-16 中冶建工集团有限公司 Installation adjustment method for RH finery lifting frame guide rails
CN204439083U (en) * 2015-02-03 2015-07-01 山西二建集团有限公司 Shear wall formwork detecting device

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Publication number Priority date Publication date Assignee Title
JPH082856A (en) * 1994-06-22 1996-01-09 Hitachi Building Syst Eng & Service Co Ltd Device for measuring verticality of hydraulic jack for hydraulic elevator
JPH10115353A (en) * 1996-10-09 1998-05-06 Mitsubishi Denki Bill Techno Service Kk Stretch device for adjusting of pulley mounting
JP2005132521A (en) * 2003-10-28 2005-05-26 Mitsubishi Electric Building Techno Service Co Ltd Block parallel core measuring tool, and block parallel core measuring method using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5493537A (en) * 1977-12-29 1979-07-24 Mitsubishi Electric Corp Method of installing hoist and deflector wheel of elevator
JPH05139657A (en) * 1991-11-20 1993-06-08 Mitsubishi Electric Corp Device for holding plumb wire for work of installing elevator
JPH10167613A (en) * 1996-12-04 1998-06-23 Hitachi Building Syst Co Ltd Installation device for elevator guide rail
CN103925862A (en) * 2014-05-07 2014-07-16 中冶建工集团有限公司 Installation adjustment method for RH finery lifting frame guide rails
CN204439083U (en) * 2015-02-03 2015-07-01 山西二建集团有限公司 Shear wall formwork detecting device

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JP2017206370A (en) 2017-11-24
CN107401964A (en) 2017-11-28

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