CN113479737A - Safety tongs of high-speed elevator and fault monitoring system thereof - Google Patents
Safety tongs of high-speed elevator and fault monitoring system thereof Download PDFInfo
- Publication number
- CN113479737A CN113479737A CN202110734998.8A CN202110734998A CN113479737A CN 113479737 A CN113479737 A CN 113479737A CN 202110734998 A CN202110734998 A CN 202110734998A CN 113479737 A CN113479737 A CN 113479737A
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- Prior art keywords
- movable wedge
- wedge block
- controller
- block
- movable
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Classifications
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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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
- B66B3/002—Indicators
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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
- B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
Abstract
The invention discloses safety tongs of a high-speed elevator, which comprise a tong body, a top block, a pair of positioning wedge blocks and a pair of movable wedge blocks, wherein the tong body is provided with a jack; the top block is fixed on the clamp body, and the pair of positioning wedge blocks are respectively arranged in the top block through springs and are symmetrical about the center line of the top block; the pull rod is arranged at the top of the movable wedge block and penetrates out of the top of the clamp body, the movable wedge block is attached to the wedge-shaped surface of the positioning wedge block and slides along the straight line of the positioning wedge block, so that the distance between the movable wedge blocks is gradually changed, when the distance is reduced, the movable wedge block and the elevator guide rail are subjected to friction braking, and a cooling coating is coated on one surface of the movable wedge block, which is subjected to friction with the guide rail. In the high-speed operation process of the elevator, the cooling coating coated on the opposite surface of the movable wedge block effectively prevents heat transfer, avoids overheating damage to the internal tissue of the movable wedge block material, enhances safety, and also improves durability and prolongs service life.
Description
Technical Field
The invention belongs to the technical field of elevators, and particularly relates to a safety gear of a high-speed elevator and a fault monitoring system thereof.
Background
An elevator, a vertical elevator powered by an electric motor, is equipped with a box-like car for carrying people or cargo in a multi-story building. There are also steps, where the tread plates are mounted on a track for continuous operation, commonly known as an escalator. A fixed elevator apparatus serving a predetermined floor. It has a cage which runs between at least two rows of vertical or inclined rigid guide rails with an angle of inclination of less than 15 deg.. The size and the structural form of the car are convenient for passengers to access or load and unload goods.
The elevator safety gear device is a safety device which emergently stops a car and clamps the car on a guide rail under the operation of a speed limiter when the speed of an elevator exceeds the set limit speed of the speed limiter of the elevator or in the case of breakage and looseness of a suspension rope. It provides effective protection for the safe operation of the elevator and is generally installed on a car frame or a counterweight frame.
For high-rise buildings, due to the fact that the number of floors is large, the speed of a generally equipped elevator is high, the safety tongs are instantly clasped with the guide rail in emergency braking, the generated friction force is very large, a large amount of heat is generated certainly, the service life of a wedge block is damaged due to overheating, the working reliability is affected, and the problem of possible working failure is solved because the abrasion loss exceeds a set value and needs to be replaced.
Disclosure of Invention
In order to solve the existing problems in the background technology, the invention provides a safety gear of a high-speed elevator and a fault monitoring system thereof, which can reduce the temperature generated by friction under the action of a cooling coating during braking, avoid damaging part materials by overheating, monitor the temperature and the abrasion condition by the fault monitoring system and facilitate the timely maintenance.
The invention adopts the following technical scheme:
the utility model provides a safety tongs of high-speed elevator, installs at car top or lower part for with the braking of elevator guide rail cohesion, safety tongs includes the pincers body, still includes:
the device comprises a top block, a pair of positioning wedges and a pair of movable wedges;
the top block is fixed on the clamp body, and the pair of positioning wedges are respectively installed in the top block through springs and are symmetrical about the center line of the top block;
the pull rod is established at the activity voussoir top and is worn out the pincers body top, the activity voussoir pastes in the wedge-shaped face of location voussoir and slides along its straight line, causes interval between the activity voussoir changes gradually, reduces when the interval, the friction braking of activity voussoir and elevator guide rail, the one side coating cooling coating of friction takes place with the guide rail on the activity voussoir.
A fault monitoring system for a high speed elevator safety gear for monitoring the wear level of a movable wedge, the fault monitoring system comprising:
the controller is connected with the power supply;
and the monitoring circuit is connected with the movable wedge blocks and the controller, each movable wedge block corresponds to one monitoring circuit, and the controller determines the abrasion condition of the movable wedge block corresponding to each monitoring circuit according to the state information of the monitoring circuits and sends corresponding information.
Further, the monitoring circuit includes a connection route;
and early warning positions are arranged on the cooling coating of the movable wedge block, the connecting lines are connected with the early warning positions, when any movable wedge block rubs to the early warning position, the corresponding connecting line is disconnected, and the controller determines the worn positioning wedge block according to the disconnected connecting line.
Furthermore, a thermosensitive sensor is embedded in the movable wedge block and connected with the controller, a temperature limit value is set in the controller, and when the thermosensitive sensor detects that the temperature of the movable wedge block exceeds the limit value, a signal is transmitted to the controller, and the controller judges that the movable wedge block is abnormal.
Further, the connection route includes:
two ends of the first detection line are respectively connected with the movable wedge block and the bonding wire;
two ends of the second detection line are respectively connected with the movable wedge block and the controller;
and two ends of the third detection line are respectively connected with the controller and the bonding wire.
Further, the controller includes:
a circuit board having a plurality of interfaces;
the alarm is arranged on the circuit board and connected with the interface, the interface is provided with position information of each movable wedge block, one end, far away from the movable wedge block, of the second detection line is connected with the interface, the heat-sensitive sensor is connected with the interface, and when the heat-sensitive sensor detects that the temperature exceeds a limit value and the second detection line is disconnected, the alarm gives out alarm information.
Further, the fault monitoring system further comprises:
and the display is connected with the controller and is used for displaying the detected temperature of the movable wedge block during braking and the corresponding position information of the movable wedge block when the second detection line is disconnected on the display.
Furthermore, the fault monitoring system also comprises a communication unit which is connected with the controller, and the PC end is connected with the controller in a wired or wireless mode so as to manage and maintain the information.
The invention has the following beneficial effects:
in the high-speed operation process of the elevator, the pull rod drives the movable wedge blocks to clamp the sliding rail in a sliding mode, the cooling coating coated on the opposite surfaces of the movable wedge blocks effectively prevents heat transfer, the internal tissue of the movable wedge block material is prevented from being damaged due to overheating, the safety is improved, the durability is improved, and the service life is prolonged.
The temperature value when the embedded heat sensitive sensor of activity voussoir monitors braking in real time exceeds the settlement extreme value, and the controller judges abnormal information, shows through the display to send out the alarm suggestion by the alarm, later stage to the maintenance of emphasizing on the activity voussoir, maintain normal braking function.
The bond strap, the first detection line, the movable wedge block, the second detection line, the controller and the third detection line form a loop, when the movable wedge block is worn to an early warning position, the first detection line and the movable wedge block are connected and interrupted, the controller obtains information of loop disconnection, the condition of the movable wedge block wearing can be rapidly known from the display, an alarm prompt is received, meanwhile, the position of the worn movable wedge block is judged, and the movable wedge block is checked and maintained in a targeted mode.
Drawings
Fig. 1 is a simplified schematic diagram of the structure of a safety gear of a high-speed elevator according to the invention;
FIG. 2 is a schematic diagram of a fault monitoring system according to an embodiment;
FIG. 3 is a schematic diagram showing the components of the fault monitoring system according to the second embodiment;
FIG. 4 is a schematic diagram showing the components of a fault monitoring system according to a third embodiment;
FIG. 5 is a schematic diagram showing the configuration of a fault monitoring system according to a fourth embodiment;
fig. 6 is a schematic diagram of the fault monitoring system according to the fifth embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention designs a safety gear of a high-speed elevator, which is arranged on the top or the lower part of a car and used for embracing and braking with an elevator guide rail.
Example one
As shown in fig. 1, the safety gear comprises a gear body 1, a top block 2, a pair of positioning wedges 3 and a pair of movable wedges 4.
In this embodiment, in detail, the top block 2 is fixed on the caliper body 1, and the pair of positioning wedges 3 are respectively installed in the top block 2 through a spring 5 and are symmetrical with respect to a center line of the top block 2, so that a certain action elasticity on the positioning wedges 3 is always maintained under the action of the spring 5, which is beneficial to resetting.
4 tops of activity voussoir are established pull rod 6 and are worn out 1 top of the pincers body, activity voussoir 4 pastes in the wedge face of location voussoir 3 and slides along its straight line, causes interval between the activity voussoir 4 changes gradually, reduces when the interval, activity voussoir 4 and elevator guide rail friction braking, the one side coating cooling coating of friction takes place with the guide rail on the activity voussoir 4, and the cooling coating improves thermal-insulated effect when activity voussoir 4 and guide rail friction, therefore reduces heat transfer, and whole lowering the temperature improves the incorruptibility.
In addition, a fault monitoring system of a safety gear of a high-speed elevator, as shown in fig. 2, for monitoring the degree of wear of a movable wedge 4, the fault monitoring system comprising: the controller 7 is connected with a power supply; the monitoring circuits are connected with the movable wedges 4 and the controller 7, each movable wedge 4 corresponds to one monitoring circuit, and the controller 7 determines the abrasion condition of the movable wedge 4 corresponding to each monitoring circuit according to the state information of the monitoring circuits and sends corresponding information.
In this embodiment, as shown in fig. 2, the monitoring circuit includes a connection line 8, and the connection line 8 includes: two ends of the first detection line 80 are respectively connected with the movable wedge 4 and the bonding wire; two ends of the second detection line 81 are respectively connected with the movable wedge 4 and the controller 7; and two ends of a third detection line 82 are respectively connected with the controller 7 and the bonding wire. In addition, an early warning position is arranged on a cooling coating of the movable wedge block 4, the connecting lines 8 are connected with the early warning position, when any movable wedge block 4 rubs to the early warning position, the corresponding connecting line 8 is disconnected, and the controller 7 determines the worn positioning wedge block 3 according to the disconnected connecting line 8, specifically: the bond wire, the first detection line 80, the movable wedge block 4, the second detection line 81, the controller 7 and the third detection line 82 form a loop, when the movable wedge block 4 is worn to an early warning position, the first detection line 80 is disconnected with the movable wedge block 4, the controller 7 obtains information of loop disconnection, the condition of the movable wedge block 4 wearing can be rapidly known from the display 10, an alarm prompt is received, meanwhile, the position of the worn movable wedge block 4 is judged, and the targeted inspection and maintenance are performed.
Example two
As shown in fig. 3, in this embodiment, in addition to the first embodiment, a thermal sensor 9 is embedded in the movable wedge 4, the thermal sensor 9 is connected to the controller 7, a temperature limit value is set in the controller 7, and when the thermal sensor detects that the temperature of the movable wedge 4 exceeds the limit value, a signal is transmitted to the controller 7, and the controller 7 determines that the movable wedge is abnormal, and when the movable wedge is abnormal, the movable wedge is replaced and maintained in time in consideration of overheating and damaging the material itself, so that the occurrence of breakage during braking is avoided, the normal operation is maintained, and the operation safety of the elevator is improved.
EXAMPLE III
As shown in fig. 4, on the basis of the two embodiments, the following features are additionally included:
the controller 7 includes: a circuit board 70 having a plurality of interfaces 71; the alarm 72 is arranged on the circuit board 70 and connected with the interface 71, the position information of each movable wedge 4 is set on the interface 71, the second detection line 81 is far away from one end of each movable wedge 4 and connected with the interface 71, the heat-sensitive sensor 9 is connected with the interface 71, when the heat-sensitive sensor 9 detects that the temperature exceeds the limit value and the second detection line 81 is disconnected, the alarm 72 gives out alarm information, so that maintenance personnel can quickly judge the worn position and the accurate position of the movable wedge 4 with overhigh temperature, and the investigation time is saved.
Example four
As shown in fig. 5, in addition to the above-mentioned embodiment, the following features are added, and the fault monitoring system further includes: and the display 10 is connected with the controller 7 and is used for displaying the detected temperature of the movable wedge 4 during braking and the corresponding position information of the movable wedge 4 when the second detection line 81 is disconnected on the display 10, so that the movable wedge is intuitive and clear and has high visualization degree.
EXAMPLE five
As shown in fig. 6, based on the above embodiment, the following features are added, and the fault monitoring system further includes a communication unit 11 connected to the controller 7, and the PC end is connected to the controller 7 in a wired or wireless manner, so as to manage and maintain information, facilitate data processing and analysis in the later period, and set and modify elevator operation parameters in the controller 7 at the PC end, thereby meeting different working requirements.
The invention has the advantages that:
in the high-speed operation process of the elevator, the pull rod drives the movable wedge blocks to clamp the sliding rail in a sliding mode, the cooling coating coated on the opposite surfaces of the movable wedge blocks effectively prevents heat transfer, the internal tissue of the movable wedge block material is prevented from being damaged due to overheating, the safety is improved, the durability is improved, and the service life is prolonged.
The temperature value when the embedded heat sensitive sensor of activity voussoir monitors braking in real time exceeds the settlement extreme value, and the controller judges abnormal information, shows through the display to send out the alarm suggestion by the alarm, later stage to the maintenance of emphasizing on the activity voussoir, maintain normal braking function.
The bond strap, the first detection line, the movable wedge block, the second detection line, the controller and the third detection line form a loop, when the movable wedge block is worn to an early warning position, the first detection line and the movable wedge block are connected and interrupted, the controller obtains information of loop disconnection, the condition of the movable wedge block wearing can be rapidly known from the display, an alarm prompt is received, meanwhile, the position of the worn movable wedge block is judged, and the movable wedge block is checked and maintained in a targeted mode.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (8)
1. The utility model provides a safety tongs of high-speed elevator installs at car top or lower part for with the braking of elevator guide rail cohesion, safety tongs includes the pincers body, its characterized in that still includes:
the device comprises a top block, a pair of positioning wedges and a pair of movable wedges;
the top block is fixed on the clamp body, and the pair of positioning wedges are respectively installed in the top block through springs and are symmetrical about the center line of the top block;
the pull rod is established at the activity voussoir top and is worn out the pincers body top, the activity voussoir pastes in the wedge-shaped face of location voussoir and slides along its straight line, causes interval between the activity voussoir changes gradually, reduces when the interval, the friction braking of activity voussoir and elevator guide rail, the one side coating cooling coating of friction takes place with the guide rail on the activity voussoir.
2. A fault monitoring system for a high speed elevator safety gear for monitoring the wear level of a movable wedge of claim 1, wherein the fault monitoring system comprises:
the controller is connected with the power supply;
and the monitoring circuit is connected with the movable wedge blocks and the controller, each movable wedge block corresponds to one monitoring circuit, and the controller determines the abrasion condition of the movable wedge block corresponding to each monitoring circuit according to the state information of the monitoring circuits and sends corresponding information.
3. The fault monitoring system for high-speed elevator safety gear according to claim 2, characterized in that the monitoring circuit comprises a connection line;
and early warning positions are arranged on the cooling coating of the movable wedge block, the connecting lines are connected with the early warning positions, when any movable wedge block rubs to the early warning position, the corresponding connecting line is disconnected, and the controller determines the worn positioning wedge block according to the disconnected connecting line.
4. The system for monitoring the faults of the safety tongs of the high-speed elevators according to claim 2, wherein a heat-sensitive sensor is embedded in the movable wedge block, the heat-sensitive sensor is connected with a controller, a temperature limit value is set in the controller, and when the heat-sensitive sensor detects that the temperature of the movable wedge block exceeds the limit value, a signal is transmitted to the controller, and the controller judges the abnormal condition.
5. The fault monitoring system for high-speed elevator safety gear according to claim 4, characterized in that the connection route comprises:
two ends of the first detection line are respectively connected with the movable wedge block and the bonding wire;
two ends of the second detection line are respectively connected with the movable wedge block and the controller;
and two ends of the third detection line are respectively connected with the controller and the bonding wire.
6. The fault monitoring system for high-speed elevator safety gear according to claim 5, characterized in that the controller comprises:
a circuit board having a plurality of interfaces;
the alarm is arranged on the circuit board and connected with the interface, the interface is provided with position information of each movable wedge block, one end, far away from the movable wedge block, of the second detection line is connected with the interface, the heat-sensitive sensor is connected with the interface, and when the heat-sensitive sensor detects that the temperature exceeds a limit value and the second detection line is disconnected, the alarm gives out alarm information.
7. The fault monitoring system for high-speed elevator safety gear according to claim 6, characterized in that it further comprises:
and the display is connected with the controller and is used for displaying the detected temperature of the movable wedge block during braking and the corresponding position information of the movable wedge block when the second detection line is disconnected on the display.
8. The system for monitoring the fault of the safety gear of the high-speed elevator as recited in any one of claims 2 to 7, further comprising a communication unit connected with the controller, wherein the PC terminal is connected with the controller by wire or wireless mode to manage and maintain the information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734998.8A CN113479737A (en) | 2021-06-30 | 2021-06-30 | Safety tongs of high-speed elevator and fault monitoring system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734998.8A CN113479737A (en) | 2021-06-30 | 2021-06-30 | Safety tongs of high-speed elevator and fault monitoring system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113479737A true CN113479737A (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110734998.8A Pending CN113479737A (en) | 2021-06-30 | 2021-06-30 | Safety tongs of high-speed elevator and fault monitoring system thereof |
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| CN (1) | CN113479737A (en) |
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| CN202139513U (en) * | 2011-03-08 | 2012-02-08 | 张昆 | Intelligent temperature-lowering and expansion-reducing steel rail |
| CN102756961A (en) * | 2011-04-28 | 2012-10-31 | 株式会社日立制作所 | An emergency stop device for elevators, a brake component, and an elevator |
| CN205527143U (en) * | 2016-04-25 | 2016-08-31 | 巨人通力电梯有限公司 | Be applicable to elevator hauler band -type brake brake block limit of wear alarm device |
| CN110356945A (en) * | 2018-03-26 | 2019-10-22 | 上海三菱电梯有限公司 | The wear sensing equipment and brake device for elevator of linear motion component |
| CN209721274U (en) * | 2019-03-08 | 2019-12-03 | 辛格林电梯（中国）有限公司 | A kind of safety tongs monitoring device applied on active safety elevator |
| CN213231085U (en) * | 2020-09-27 | 2021-05-18 | 上海市特种设备监督检验技术研究院 | Elevator brake shoe wear monitoring and grading early warning device |
-
2021
- 2021-06-30 CN CN202110734998.8A patent/CN113479737A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202139513U (en) * | 2011-03-08 | 2012-02-08 | 张昆 | Intelligent temperature-lowering and expansion-reducing steel rail |
| CN102756961A (en) * | 2011-04-28 | 2012-10-31 | 株式会社日立制作所 | An emergency stop device for elevators, a brake component, and an elevator |
| CN205527143U (en) * | 2016-04-25 | 2016-08-31 | 巨人通力电梯有限公司 | Be applicable to elevator hauler band -type brake brake block limit of wear alarm device |
| CN110356945A (en) * | 2018-03-26 | 2019-10-22 | 上海三菱电梯有限公司 | The wear sensing equipment and brake device for elevator of linear motion component |
| CN209721274U (en) * | 2019-03-08 | 2019-12-03 | 辛格林电梯（中国）有限公司 | A kind of safety tongs monitoring device applied on active safety elevator |
| CN213231085U (en) * | 2020-09-27 | 2021-05-18 | 上海市特种设备监督检验技术研究院 | Elevator brake shoe wear monitoring and grading early warning device |
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Application publication date: 20211008 |