CN110872036A - Elevator rope breakage detection device and elevator - Google Patents
Elevator rope breakage detection device and elevator Download PDFInfo
- Publication number
- CN110872036A CN110872036A CN201811014683.0A CN201811014683A CN110872036A CN 110872036 A CN110872036 A CN 110872036A CN 201811014683 A CN201811014683 A CN 201811014683A CN 110872036 A CN110872036 A CN 110872036A
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- CN
- China
- Prior art keywords
- plate
- elevator
- balance plate
- shaft
- rope
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
- B66B5/125—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack electrical
Abstract
The invention provides an elevator rope breakage detection device and an elevator. This elevator detection device that restricts absolutely is arranged in the elevator that has two parallel steel bands to detect the lax or the fracture of unilateral steel band, and every steel band passes through the fag end to be installed on the hauler mounting panel, and elevator detection device that restricts absolutely includes: the balance plate is rotatably arranged on the tractor mounting plate through a balance plate shaft, rope heads of the two steel belts are respectively connected with the balance plate at two radial sides of the balance plate shaft, and the balance plate is kept static by the force acting on the balance plate when the two steel belts work; and a safety circuit travel switch mounted on the tractor mounting plate; when one of the two steel belts is loosened or broken, the balance plate rotates around the balance plate shaft, so that one end of the balance plate is in contact with the safety circuit travel switch. The elevator rope breakage detection device and the elevator can stop the elevator when the single-side steel belt of the double-steel-belt elevator is loosened or broken, and are simple in structure and high in reliability.
Description
Technical Field
The invention relates to the technical field of elevators. Specifically, the present invention relates to an elevator rope breakage detection device for detecting slackening or breakage of a single-sided steel belt in an elevator having two steel belts, and an elevator.
Background
Steel belt type home elevators generally use two steel belts to lift the car, and when one of the steel belts is loosened or broken, if a safety detection device is not provided, the elevator can still continue to operate, which is very dangerous. The currently adopted rope breakage detection device is generally complex in structure and low in reliability.
CN 102358546 a discloses a rope breakage protection device for an elevator, which utilizes the elongation of a rope end combined spring when a steel belt is broken to apply pressure to a detection plate, and pushes the detection plate to overcome the tension of the rope breakage device spring to displace, thereby triggering a reset limit switch to break off the safety loop of the elevator. This kind of protection device needs a plurality of spring parts, and the mechanical performance requirement on the spring is higher.
Therefore, it is necessary to provide an elevator rope breakage detecting device capable of detecting slackening or breakage of a single-sided steel belt and having a simple structure and high reliability.
Disclosure of Invention
The above problem is solved by an elevator rope breakage detection device according to the present invention. This elevator detection device that restricts absolutely is arranged in the elevator that has two parallel steel bands to detect the lax or the fracture of unilateral steel band, and every steel band passes through the fag end to be installed on the hauler mounting panel, and this elevator detection device that restricts absolutely includes: the balance plate is rotatably arranged on the tractor mounting plate through a balance plate shaft, rope heads of the two steel belts are respectively connected with the balance plate at two radial sides of the balance plate shaft, and the balance plate is kept static by the force acting on the balance plate when the two steel belts work; and a safety circuit travel switch mounted on the tractor mounting plate; when one of the two steel belts is loosened or broken, the balance plate rotates around the balance plate shaft, so that one end of the balance plate is in contact with the safety circuit travel switch. The elevator rope breakage detection device utilizes a lever principle, takes a balance plate shaft as a fulcrum, the force of rope ends of two steel belts acting on the balance plate keeps the balance plate balanced, when the steel belt on one side is loosened or broken, the balance plate loses balance and rotates to one side, a safety loop travel switch is triggered, and then the safety loop is disconnected to stop the elevator.
According to a preferred embodiment of the present invention, the elevator rope breakage detecting device includes two safety circuit stroke switches which are respectively brought into contact with the balancing plate when the balancing plate is rotated in two opposite directions, so that the safety circuit stroke switches can be triggered by the balancing plate when the steel belt on either side is loosened or broken. Preferably, in the rotation plane of the balancing plate, the two safety circuit travel switches may be located on opposite sides of the steel strip, or the two safety circuit travel switches may be located on the same side of the steel strip and on two sides of the balancing plate in an up-and-down arrangement, so that the balancing plate may contact one of the safety circuit travel switches in different rotation directions.
According to another preferred embodiment of the invention, the end of the balancing plate is formed with a triggering plate extending perpendicularly to the plane of rotation of the balancing plate. The trigger plate may contact the safety circuit travel switch when the balance plate rotates.
According to another preferred embodiment of the present invention, two rope end shafts are rotatably mounted on the balance plate, the two rope end shafts are respectively located at two radial sides of the balance plate shaft and are parallel to the balance plate shaft, and the two rope ends are respectively fixedly connected with the two rope end shafts. The rope end is rotatably connected with the balance plate through the rope end shaft, so that the rope end can be pulled to drive the balance plate to rotate around the balance plate shaft.
According to a further preferred embodiment of the invention, the balancing plate comprises two shaft mounting plates which extend parallel to the rotation plane of the balancing plate and are spaced apart from each other in a direction perpendicular to the rotation plane, the trigger plate and/or the cord end shaft and/or the balancing plate shaft being mounted between the two shaft mounting plates. The two parallel shaft mounting plates provide mounting space for the trigger plate and can support the rotation of the rope head shaft and the balance plate shaft.
According to another preferred embodiment of the present invention, the elevator rope breakage detecting apparatus includes a stopper rod stopping rotation of the balance plate to prevent the rotation angle of the balance plate from being excessively large.
According to another preferred embodiment of the present invention, the safety circuit stroke switch is fixed to the traction machine mounting plate by a switch mounting plate. The tractor mounting plate provides firm support for the safety circuit travel switch.
The above-mentioned problem is also solved by an elevator according to the invention, which has two parallel steel belts and comprises an elevator rope break detection device having the above-mentioned features.
Drawings
The invention is described in detail below with reference to the attached drawing figures:
fig. 1 shows a perspective view of an elevator rope breakage detecting apparatus according to an embodiment of the present invention; and
fig. 2 illustrates a perspective view of a balance board according to an embodiment of the present invention.
Detailed Description
Hereinafter, a detailed embodiment of an elevator rope breakage detecting apparatus according to the present invention will be described with reference to the accompanying drawings. The following detailed description and drawings are included to illustrate the principles of the invention, which is not to be limited to the preferred embodiments described, but is to be defined by the appended claims.
As shown in fig. 1, the elevator rope breakage detecting apparatus according to the embodiment of the present invention includes a balance board 3 and a safety circuit stroke switch 6. The elevator rope breakage detection device is suitable for an elevator with two parallel steel belts, and rope heads 1 of the two steel belts are respectively installed on a traction machine installation plate (not shown) of the elevator. Each rope head 1 is also provided with an adjusting spring 2. The balance plate 3 comprises two flat plate-like shaft mounting plates 3.1, the two shaft mounting plates 3.1 being spaced apart in parallel. The balancing plate shaft 3.4 fastened to the hoisting machine mounting plate passes vertically through the two shaft mounting plates 3.1 in a horizontal central position, so that the two shaft mounting plates 3.1 can be rotated together by means of the balancing plate shaft 3.4, the plane of rotation of which is parallel to the plane of extension of the shaft mounting plates 3.1. Two rope end shafts 3.3 are respectively arranged at two radial sides of the balance plate shaft 3.4, and each rope end shaft 3.3 is respectively arranged between the two shaft mounting plates 3.1 in a penetrating way in parallel with the balance plate shaft 3.4. The two rope end shafts 3.3 are respectively fixedly connected with the two rope ends 1 and can rotate relative to the shaft mounting plate 3.1. The pulling force of the rope head 1 can act on the shaft mounting plate 3.1 through the rope head shaft 3.3, so that the drive shaft mounting plate 3.1 rotates around the balance plate shaft 3.4. Trigger plates 3.2 are respectively formed at both ends of the balance plate 3, and the trigger plates 3.2 are installed between the ends of the two shaft installation plates 3.1 and extend perpendicular to the rotation plane of the balance plate 3. The safety loop travel switch 6 is fixed on the tractor mounting plate through the switch mounting plate 5.
After the load is applied to the two steel belts of the elevator, the nut of the adjusting spring 2 on the rope head 1 is adjusted to keep the balance plate 3 of the broken rope detection device horizontal. When the elevator runs in a normal state, the balance plate 3 is in a balance state, the safety loop travel switch 6 is closed, and the elevator safety loop is communicated. When one steel belt of the elevator is loosened or broken, the rope head 1 connected with the steel belt loses tension, under the action of the tension of the other rope head 1, the balance plate 3 loses balance, one end connected with the rope head 1 which is not loosened or broken moves downwards under the action of the tension, so that the balance plate 3 integrally rotates around a balance plate shaft 3.4, and the trigger plate 3.2 at the end part is contacted with one safety loop travel switch 6, so that the safety loop is triggered, and the elevator stops running. Preferably, a stopper rod 4 may be provided on a rotation path of the balance plate 3, the stopper rod 4 being fixed to the traction machine mounting plate to stop the balance plate 3 from excessively rotating or descending, thereby preventing damage to other components of the elevator.
According to a preferred embodiment of the invention, two safety circuit travel switches 6 are arranged below the two ends of the balancing plate 3, respectively on both sides of the steel strip, in the plane of rotation of the balancing plate 3, and correspond to the trigger plates 3.2 at both ends of the balancing plate 3. When the steel belt on one side is loosened or broken, the balance plate 3 rotates in one direction, so that one safety loop travel switch 6 is triggered; when the steel strip on the other side is loosened or broken, the balance plate 3 is rotated in the opposite direction, thereby triggering the other safety circuit travel switch 6. Alternatively, the two safety circuit travel switches 6 may also be arranged on the same side of the steel strip and arranged one above the other in the plane of rotation of the balancing plate 3 with respect to the same end of the balancing plate 3. In this way, the compensating plate 3 can also be brought into contact with one of the safety circuit travel switches 6 in each case in different directions of rotation. The safety circuit travel switch 6 can also be arranged in other ways, as long as the switch is triggered by rotation of the balancing plate 3 in different directions.
As described above, although the exemplary embodiments of the present invention have been described in the description with reference to the drawings, the present invention is not limited to the above-described embodiments, and the scope of the present invention should be defined by the claims and their equivalents.
List of reference numerals
1 rope end
2 adjusting spring
3 balance plate
3.1 axle mounting plate
3.2 trigger plate
3.3 rope stub axle
3.4 balance plate axle
4 limiting rod
5 switch mounting plate
6 safety circuit travel switch.
Claims (10)
1. An elevator rope breakage detecting device is used for detecting the looseness or breakage of a steel belt on one side in an elevator with two parallel steel belts, each steel belt is arranged on a tractor mounting plate through a rope head (1),
it is characterized in that the preparation method is characterized in that,
the elevator rope breakage detection device comprises:
the balance plate (3) is rotatably mounted on the traction machine mounting plate through a balance plate shaft (3.4), the rope heads (1) of two steel belts are respectively connected with the balance plate (3) at two radial sides of the balance plate shaft (3.4), and the force acting on the balance plate (3) when the two steel belts work makes the balance plate (3) keep static; and
a safety circuit travel switch (6), the safety circuit travel switch (6) being mounted on the tractor mounting plate;
wherein, when one of the two steel belts is loosened or broken, the balance plate (3) rotates around the balance plate shaft (3.4) so that one end of the balance plate (3) is in contact with the safety circuit travel switch (6).
2. The elevator rope breakage detection apparatus according to claim 1, characterized in that the elevator rope breakage detection apparatus includes two safety circuit stroke switches (6), the two safety circuit stroke switches (6) being in contact with the balance plate (3) when the balance plate (3) rotates in two opposite directions, respectively.
3. The elevator rope breakage detection device according to claim 2, characterized in that in the plane of rotation of the balance plate (3) the two safety circuit travel switches (6) are located on either side of the steel belt.
4. Elevator rope break detection device according to claim 2, characterized in that in the plane of rotation of the balancing plate (3) the two safety circuit travel switches (6) are located on the same side of the steel belt and are arranged one above the other on both sides of the balancing plate (3).
5. Elevator rope break detection device according to claim 1, characterized in that the end of the balancing plate (3) is formed with a triggering plate (3.2) extending perpendicular to the plane of rotation of the balancing plate (3).
6. The elevator rope breakage detection device according to claim 1, characterized in that two rope head shafts (3.3) are rotatably mounted on the balance plate (3), the two rope head shafts (3.3) are respectively located on two radial sides of the balance plate shaft (3.4) and are parallel to the balance plate shaft (3.4), and the two rope heads (1) are respectively fixedly connected with the two rope head shafts (3.3).
7. Elevator rope break detection device according to claim 5 or 6, characterized in that the balancing plate (3) comprises two shaft mounting plates (3.1), the two shaft mounting plates (3.1) extending parallel to the plane of rotation of the balancing plate (3) and being spaced apart from each other in a direction perpendicular to the plane of rotation, the triggering plate (3.2) and/or the rope head shaft (3.3) and/or the balancing plate shaft (3.4) being mounted between the two shaft mounting plates (3.1).
8. The elevator rope breakage detecting device according to claim 1, characterized in that it includes a stopper rod (4), the stopper rod (4) stopping rotation of the balance plate (3).
9. The elevator rope breakage detecting apparatus according to claim 1, wherein the safety circuit stroke switch (6) is fixed to the traction machine mounting plate by a switch mounting plate (5).
10. Elevator with two parallel steel belts, characterized in that it comprises an elevator rope break detection device according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014683.0A CN110872036A (en) | 2018-08-31 | 2018-08-31 | Elevator rope breakage detection device and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014683.0A CN110872036A (en) | 2018-08-31 | 2018-08-31 | Elevator rope breakage detection device and elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110872036A true CN110872036A (en) | 2020-03-10 |
Family
ID=69715825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811014683.0A Pending CN110872036A (en) | 2018-08-31 | 2018-08-31 | Elevator rope breakage detection device and elevator |
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| Country | Link |
|---|---|
| CN (1) | CN110872036A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860118A (en) * | 2021-10-21 | 2021-12-31 | 安徽大学 | Elevator with rope breakage alarm function |
-
2018
- 2018-08-31 CN CN201811014683.0A patent/CN110872036A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860118A (en) * | 2021-10-21 | 2021-12-31 | 安徽大学 | Elevator with rope breakage alarm function |
| CN113860118B (en) * | 2021-10-21 | 2023-02-14 | 安徽大学 | Elevator with rope breakage alarm function |
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Address after: 201602 Building 1, 333 Changye Road, Sheshan District, Songjiang District, Shanghai Applicant after: Tisheng home elevator (Shanghai) Co.,Ltd. Address before: 201602 Building 1, 333 Changye Road, Sheshan District, Songjiang District, Shanghai Applicant before: THYSSENKRUPP ELEVATORS Co.,Ltd. SHANGHAI BRANCH |