JP4946312B2 - Elevator drive device - Google Patents

Elevator drive device Download PDF

Info

Publication number
JP4946312B2
JP4946312B2 JP2006261171A JP2006261171A JP4946312B2 JP 4946312 B2 JP4946312 B2 JP 4946312B2 JP 2006261171 A JP2006261171 A JP 2006261171A JP 2006261171 A JP2006261171 A JP 2006261171A JP 4946312 B2 JP4946312 B2 JP 4946312B2
Authority
JP
Japan
Prior art keywords
belt
spring
tension
car
pulley
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2006261171A
Other languages
Japanese (ja)
Other versions
JP2008081227A (en
Inventor
庸祐 合田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitec Co Ltd
Original Assignee
Fujitec Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitec Co Ltd filed Critical Fujitec Co Ltd
Priority to JP2006261171A priority Critical patent/JP4946312B2/en
Publication of JP2008081227A publication Critical patent/JP2008081227A/en
Application granted granted Critical
Publication of JP4946312B2 publication Critical patent/JP4946312B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Cage And Drive Apparatuses For Elevators (AREA)

Description

本発明は、ベルト伝動機構を使用してエレベータかご等を往復駆動させる駆動装置に係り、特にベルト伝動機構のベルトに張力を付与する張力付与装置の改良に関するものである。   The present invention relates to a driving device that reciprocally drives an elevator car or the like using a belt transmission mechanism, and more particularly to an improvement in a tension applying device that applies tension to a belt of the belt transmission mechanism.

図2は、出願人が提案しているベルト伝動機構を備えた駆動装置であり(特許文献1参照)、図示省略しているが、主ロープ3の一側にはエレベータかご、他側にはカウンターウェイトが設けられている。駆動装置40はフレーム41にシーブ42を取り付けるとともに、該シーブ42の上方と両側の3箇所にプーリ43,44,45を配置し、これらのプーリ43,44,45にベルト46を張設し、このベルト46によってシーブ42に巻き付けられた主ロープ3をシーブ42に押圧する。上方のプーリ43はフレーム41の背面に取り付けられたモータ(図示省略)に連結されており、ベルト46の周回移動により、シーブ42と主ロープ3を移動させてかご及びカウンターウェイトを昇降させる構成になっている。また両側のプーリ44,45はそれぞれ位置調節機構47によって、フレーム41に対して高さ位置の調節が可能に取り付けられており、これら高さ位置を調節することによってベルト46の張力を調節することができる。48は非常時等に主ロープ3を挟持するロープグリッパーで油圧等によって動作する。49はモータの回動状態を検出する検出装置、例えばロータリーエンコーダ、50はモータのブレーキである。   FIG. 2 shows a drive device provided with a belt transmission mechanism proposed by the applicant (see Patent Document 1), which is not shown, but an elevator car is provided on one side of the main rope 3 and an elevator car is provided on the other side. A counterweight is provided. The drive device 40 attaches a sheave 42 to a frame 41, and arranges pulleys 43, 44, 45 at three locations above and on both sides of the sheave 42, and stretches a belt 46 around these pulleys 43, 44, 45, The main rope 3 wound around the sheave 42 is pressed against the sheave 42 by the belt 46. The upper pulley 43 is connected to a motor (not shown) attached to the back surface of the frame 41, and the sheave 42 and the main rope 3 are moved by the circumferential movement of the belt 46 to raise and lower the car and the counterweight. It has become. The pulleys 44 and 45 on both sides are attached to the frame 41 by the position adjusting mechanism 47 so that the height position can be adjusted. By adjusting the height position, the tension of the belt 46 can be adjusted. Can do. Reference numeral 48 denotes a rope gripper that holds the main rope 3 in an emergency or the like, and operates by hydraulic pressure or the like. Reference numeral 49 is a detection device that detects the rotational state of the motor, for example, a rotary encoder, and 50 is a brake for the motor.

この装置では、位置調節機構47により両側のプーリ44,45の位置を調節することによって、ベルト46に張力を付与しているが、ベルト46は使用により若干の伸びを生じるため位置調節機構47の調節が必要になる。そこで図1に示すように、ばね等の弾性体を使ってベルト46に張力を付与することが考えられている。
図1において、11は軸12によりフレーム41に回動自在に設けられたレバーで、プーリ45が枢着されているとともに、フレーム41に固定されたボルト13が貫通している。このボルト13とレバー11の間にはばね14が設けられベルト46に張力を付与している。これらのレバー11〜ばね14によりかご側張力付与装置10を構成している。また、カウンターウェイト側張力付与装置20も同様にレバー21,軸22,ボルト23,ばね24を備えた構成となっており、両ばね14,24のばね定数は同一である。また図2と同一符号は同一のものを示している。
In this apparatus, tension is applied to the belt 46 by adjusting the positions of the pulleys 44 and 45 on both sides by the position adjusting mechanism 47. However, since the belt 46 is slightly stretched by use, Adjustment is required. Therefore, as shown in FIG. 1, it is considered to apply tension to the belt 46 using an elastic body such as a spring.
In FIG. 1, reference numeral 11 denotes a lever rotatably provided on a frame 41 by a shaft 12. A pulley 45 is pivotally attached, and a bolt 13 fixed to the frame 41 passes therethrough. A spring 14 is provided between the bolt 13 and the lever 11 to apply tension to the belt 46. These lever 11 to spring 14 constitute a car-side tension applying device 10. Similarly, the counterweight-side tension applying device 20 includes a lever 21, a shaft 22, a bolt 23, and a spring 24, and the spring constants of both the springs 14 and 24 are the same. The same reference numerals as those in FIG. 2 denote the same components.

特開2005−96953号公報JP 2005-96953 A

人や物などの荷重を運搬するエレベータ等においては、かご内の荷重は常に変動するが、荷重の大小にかかわらず主ロープ3が滑らないようにしておく必要がある。そこでかごが過積載状態、例えばかご内荷重が定格荷重の125%程度になっても主ロープ3を保持できるように、ベルト46の張力を高く設定している。したがって、荷重の大小にかかわらず常に張力が高い状態にあるためベルト46の寿命が短くなるという問題があった。   In an elevator or the like for carrying a load such as a person or an object, the load in the car always fluctuates, but it is necessary to prevent the main rope 3 from slipping regardless of the magnitude of the load. Therefore, the tension of the belt 46 is set high so that the main rope 3 can be held even when the car is overloaded, for example, the load inside the car is about 125% of the rated load. Accordingly, there is a problem that the life of the belt 46 is shortened because the tension is always high regardless of the load.

本発明は、前記かご側張力付与装置10のばね14のばね定数を、前記カウンターウェイト側張力付与装置20のばね24のばね定数より小さくしたものである。   In the present invention, the spring constant of the spring 14 of the car-side tension applying device 10 is made smaller than the spring constant of the spring 24 of the counterweight-side tension applying device 20.

本発明によれば、かごの荷重が大きくなればなるほどベルト張力が増加するため、ベルトの張力を従来より低くしておいても、過積載状態になった場合にも、従来と同様に主ロープを保持することができる。したがって、ベルトの寿命も従来に比べ長くなる。   According to the present invention, the belt tension increases as the load of the car increases. Therefore, even when the belt tension is lower than that of the conventional one, even when the belt is overloaded, the main rope is maintained in the same manner as the conventional one. Can be held. Therefore, the life of the belt is also longer than before.

本発明の実施の形態を図1により説明する、説明の便宜上、カウンターウエイト側張力付与装置20のばね24のばね定数を大きくした場合と、かご側張力付与装置10のばね14のばね定数を小さくした場合を分けて説明する。   The embodiment of the present invention will be described with reference to FIG. 1. For convenience of explanation, the spring constant of the spring 24 of the counterweight side tension applying device 20 is increased and the spring constant of the spring 14 of the car side tension applying device 10 is decreased. This will be explained separately.

まず、カウンターウエイト側張力付与装置20のばね24のばね定数を大きくした場合について説明する。過積載等によりかご側の荷重がカウンターウェイト側に比べて過大になると、主ロープ3を右方(矢印方向)に引っ張る力が大きくなり、これによってベルト46は矢印方向に送られる。このためプーリ44に働く引き上げ力が大きくなり、プーリ44は引き上げられることになる。
ばね24のばね定数を大きくすると、ベルト46によるプーリ44の引き上げ量が少なくなり、シーブ上面におけるプーリ44側からプーリ45側に送られるベルト46の量が少なくなる。
これによりプーリ45の位置が高くなるため、ばね14を圧縮する力が強くなる。そのためばね14の反力が大となり、結果的に張力付与装置10のばね力(反力)が大きくなるため、ベルト46の張力が大きくなることになるのである。この効果はかごの荷重が過大になればなるほど大きくなる。
First, a case where the spring constant of the spring 24 of the counterweight side tension applying device 20 is increased will be described. If the load on the car side becomes excessive compared to the counterweight side due to overloading or the like, the force that pulls the main rope 3 to the right (in the direction of the arrow) becomes large, whereby the belt 46 is sent in the direction of the arrow. For this reason, the pulling force acting on the pulley 44 is increased, and the pulley 44 is pulled up.
When the spring constant of the spring 24 is increased, the amount by which the pulley 44 is pulled up by the belt 46 is reduced, and the amount of the belt 46 sent from the pulley 44 side to the pulley 45 side on the sheave upper surface is reduced.
As a result, the position of the pulley 45 is increased, and the force for compressing the spring 14 is increased. For this reason, the reaction force of the spring 14 is increased, and as a result, the spring force (reaction force) of the tension applying device 10 is increased, so that the tension of the belt 46 is increased. This effect increases as the load on the car becomes excessive.

次に、かご側張力付与装置10のばね14のばね定数を小さくした場合について説明する。かご側の荷重がカウンターウェイト側に比べて過大になると、主ロープ3を矢印方向に引っ張る力が大きくなり、これによってベルト46は矢印方向に送られる。このためプーリ45に働く引き上げ力が小さくなる。プーリ45に働く引き上げ力が小さくなるとばね14の圧縮量が少なくなり、これに比例してばね14の反力も小さくなる。
ばね14のばね定数を小さくすると、ばね定数が大きい場合に比べて圧縮量の変動に対する力の変動が小さくなる。即ち、ばね14の圧縮量が少なくなっても、ばね14の反力の低下は小さくて済む。したがって、従来に比べてばね14の力(反力)は結果的に大きくなるため、ベルト46の張力が大きくなることになる。この効果はかごの荷重が過大になればなるほど大きくなる。
Next, a case where the spring constant of the spring 14 of the car-side tension applying device 10 is reduced will be described. When the load on the car side becomes excessive compared to the counterweight side, the force pulling the main rope 3 in the direction of the arrow becomes large, whereby the belt 46 is sent in the direction of the arrow. For this reason, the pulling force which acts on the pulley 45 becomes small. When the pulling force acting on the pulley 45 is reduced, the amount of compression of the spring 14 is reduced, and the reaction force of the spring 14 is also reduced in proportion thereto.
When the spring constant of the spring 14 is reduced, the force fluctuation with respect to the fluctuation of the compression amount becomes smaller than when the spring constant is large. That is, even if the amount of compression of the spring 14 decreases, the decrease in the reaction force of the spring 14 can be small. Accordingly, since the force (reaction force) of the spring 14 is increased as compared with the conventional case, the tension of the belt 46 is increased. This effect increases as the load on the car becomes excessive.

上記の説明からわかるように、ばね24のばね定数を大きくし、ばね14のばね定数を小さくすることにより、かご荷重が過大になった場合におけるばね14の力を結果的に大きくすることができる。すなわちかご荷重が過大になった場合におけるベルト46のロープ保持能力を大きくすることができる。
したがって、ベルト46の張力を従来よりも小さくできるので、ベルト46の寿命を長くすることができる。
As can be understood from the above description, by increasing the spring constant of the spring 24 and decreasing the spring constant of the spring 14, the force of the spring 14 when the car load becomes excessive can be increased as a result. . That is, the rope holding ability of the belt 46 when the car load becomes excessive can be increased.
Therefore, since the tension of the belt 46 can be made smaller than before, the life of the belt 46 can be extended.

前記実施の形態では、主ロープ3を使用したエレベータに着いて説明しているが、主ロープ3の代わりにベルト状の張力部材を使用する場合であっても、同様に実施することができる。またばね14,24はコイルばね、皿ばね等ばねとしての機能を有するものであればよい。   In the embodiment described above, the elevator using the main rope 3 is described. However, even when a belt-like tension member is used instead of the main rope 3, the same can be implemented. Moreover, the springs 14 and 24 should just have a function as springs, such as a coil spring and a disc spring.

本発明の実施の形態を示す図である。It is a figure which shows embodiment of this invention. 従来の往復移動体駆動装置の一例を示す図である。It is a figure which shows an example of the conventional reciprocating body drive device.

符号の説明Explanation of symbols

3 主ロープ
10 かご側張力付与装置
11,21 レバー
12,22 軸
13,23 ボルト
14,24 ばね
20 カウンターウェイト側張力付与装置
40 駆動装置
41 フレーム
42 シーブ
43 プーリ
44 カウンターウェイト側プーリ
45 かご側プーリ
46 ベルト
3 Main rope 10 Car side tension applying device 11, 21 Lever 12, 22 Shaft 13, 23 Bolt 14, 24 Spring 20 Counterweight side tension applying device
40 Drive Device 41 Frame 42 Sheave 43 Pulley 44 Counterweight Side Pulley 45 Car Side Pulley 46 Belt

Claims (1)

かご及びカウンターウェイトを往復移動させるためのロープ状又はベルト状の張力部材と、ベルトと複数のプーリを有し前記張力部材の張設経路に沿って周回移動するベルト伝動機構と、前記ベルトに張力を付与する張力付与装置とを備え、前記ベルトを前記張力部材に接触して前記張力部材の一定領域を側方から押圧しながら長手方向へ駆動するエレベータの駆動装置において、
前記プーリは少なくともかご側プーリとカウンターウェイト側プーリとを含むとともにそれぞれに前記張力付与装置が設けられており、かご側プーリの張力付与装置のばね定数はカウンターウェイト側プーリの張力付与装置のばね定数よりも小さいことを特徴とするエレベータ駆動装置。
A rope-like or belt-like tension member for reciprocating the cage and the counterweight, a belt transmission mechanism having a belt and a plurality of pulleys and moving around along the tensioning path of the tension member, and tension on the belt An elevator driving device that drives in the longitudinal direction while contacting the belt with the tension member and pressing a certain region of the tension member from the side,
The pulley includes at least a car-side pulley and a counterweight-side pulley, and is provided with the tension applying device. The spring constant of the tension applying device of the car-side pulley is the spring constant of the tension applying device of the counterweight-side pulley. An elevator driving device characterized by being smaller than the above.
JP2006261171A 2006-09-26 2006-09-26 Elevator drive device Active JP4946312B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006261171A JP4946312B2 (en) 2006-09-26 2006-09-26 Elevator drive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006261171A JP4946312B2 (en) 2006-09-26 2006-09-26 Elevator drive device

Publications (2)

Publication Number Publication Date
JP2008081227A JP2008081227A (en) 2008-04-10
JP4946312B2 true JP4946312B2 (en) 2012-06-06

Family

ID=39352464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006261171A Active JP4946312B2 (en) 2006-09-26 2006-09-26 Elevator drive device

Country Status (1)

Country Link
JP (1) JP4946312B2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4503917B2 (en) * 2002-11-20 2010-07-14 フジテック株式会社 Reciprocating body drive device
JP4226894B2 (en) * 2002-12-26 2009-02-18 東芝エレベータ株式会社 Elevator rope traction increase device
EP1860055A1 (en) * 2005-03-15 2007-11-28 Mitsubishi Denki Kabushiki Kaisha Brake auxiliary device of elevator

Also Published As

Publication number Publication date
JP2008081227A (en) 2008-04-10

Similar Documents

Publication Publication Date Title
EP1367019B1 (en) Both-way movable body driving mechanism and elevator device using the same
JP4351211B2 (en) Shock suspension
WO2014122754A1 (en) Elevator device
JP4946312B2 (en) Elevator drive device
JPWO2006098166A1 (en) Elevator brake assist device
JP4135379B2 (en) Reciprocating body drive device
JP4616288B2 (en) Winch
JP5017944B2 (en) Elevator drive
JP4092930B2 (en) Brake device of driving device
CN114746353B (en) Elevator and emergency stop device thereof
JP4288916B2 (en) Reciprocating body drive device
JP4232379B2 (en) Reciprocating body device
JP2005096953A (en) Reciprocating body driving device
JP4503917B2 (en) Reciprocating body drive device
JP4591027B2 (en) Driving devices such as elevators
JP5709679B2 (en) Human-powered drive system for elevator hoist
JP6678814B2 (en) Elevator equipment
JP2004203601A (en) Traction increasing device for elevator rope
JP4123864B2 (en) Reciprocating body drive device
JP2006182483A (en) Governor device of elevator
JP4244595B2 (en) Reciprocating body drive device
JP4543865B2 (en) Rope brake
JP4239757B2 (en) Reciprocating body drive device shipping method
JP4123797B2 (en) Reciprocating body drive device
JP4135378B2 (en) Reciprocating body drive device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090909

TRDD Decision of grant or rejection written
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120131

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120207

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120220

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150316

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4946312

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250