CN110626907B - Overload detection device of indoor elevator and method for controlling elevator by using overload detection device - Google Patents
Overload detection device of indoor elevator and method for controlling elevator by using overload detection device Download PDFInfo
- Publication number
- CN110626907B CN110626907B CN201910678984.1A CN201910678984A CN110626907B CN 110626907 B CN110626907 B CN 110626907B CN 201910678984 A CN201910678984 A CN 201910678984A CN 110626907 B CN110626907 B CN 110626907B
- Authority
- CN
- China
- Prior art keywords
- ropes
- elevator
- supporting member
- motor
- winding drum
- 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
Links
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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/14—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads
-
- 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
- B66B5/14—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads
- B66B5/145—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads electrical
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Abstract
The invention relates to an overload detection device of an indoor elevator and a method for controlling the elevator by using the device, the overload detection device comprises an elevator car, the elevator car is connected with a motor, a rotating shaft of the motor is connected with a winding drum, two ropes are arranged on the surface of the winding drum, the bottom ends of the two ropes are respectively connected with the winding drum, the top ends of the two ropes are respectively wound around the winding drum and two fixed pulleys and then are fixed at the upper position of the elevator car, the two fixed pulleys are arranged at the two sides of the top of the elevator car, a vertical section between the top ends of the ropes and the fixed pulleys is arranged along the movement track of the elevator car to bear the elevator car, and the motor drives the winding drum to rotate so as to tighten or release the ropes on the surface of the winding drum, so that the elevator car can ascend or descend. The invention biases the winding drum between the two fixed pulleys, so that the deformation of the two ropes in the load state is different, the difference value of the deformation of the two ropes has a rated quantity, the rated quantity corresponds to the maximum rated load of the lift car, and whether the lift car is overloaded is judged by detecting whether the difference value of the deformation of the two ropes exceeds the rated quantity.
Description
Technical Field
The invention relates to an overload detection device of an indoor elevator and a method for controlling the elevator by using the device.
Background
With the continuous improvement of the economic level, the continuous promotion of the urban and urbanization processes, the residential forms of people are developed towards the trend of high-rise buildings and villas. In the construction process of high-rise buildings, elevator shafts are designed independently, and traction elevators are mostly used, so that the elevator has relatively perfect and independent control and operation systems, and the development and application of related technologies are relatively mature; in such low-rise buildings as villas, the storey height of the villas is generally designed into two or three layers, the elevators are not designed in most villas, and because the whole equipment structure of the traction type elevator is complex, a hoistway is required to be arranged, a large space is occupied, the occupied space and the manufacturing cost of the traction type elevator are considered, the elevator is not installed in most villas, but in recent years, along with the increase of the population aging problem in China, the old people live in the villas and go upstairs and downstairs by using stairs, and potential safety hazards exist, so the demand on the small household elevators in the market is also more and more urgent, the small household elevators in the prior art are widely applied to screw type small elevators, and can be directly installed in the villas without being provided with the hoistway, and the structure is relatively simple, but the screw type elevator structure has defects: the running of the elevator car is required to rely on the rotation of the screw rod, namely the screw rod is required to be vertically installed at the running track position of the elevator car, and higher requirements are put forward on the installation perpendicularity of the screw rod, because if the installation perpendicularity of the screw rod is not high, the elevator car is easy to run to a high position after being inclined, namely the gravity center is deviated when the elevator car runs to an upper position, particularly when the load of the elevator car is large, or after long-term use, the screw rod is easy to bend, so that the elevator car is unstable to run, and a large potential safety hazard exists; the screw type small-sized elevator does have the problems at present, and the screw type small-sized elevator needs frequent overhauling and maintenance according to the feedback of users using the products, so that the failure rate of equipment operation is high.
The inventor proposes and designs an indoor elevator structure according to the defects existing in the prior art, the indoor elevator uses a motor to tighten or release ropes to realize the ascending and descending of a car, but because the household indoor elevator is different from a traction motor with a hoistway, the inventor designs a structure for using two ropes to pull the car in consideration of space limitation and equipment cost control, and because the traction mode of the ropes is different from the existing elevator, the existing overload detection system is not suitable for being applied in the elevator structure of the scheme, and the structure of the household indoor elevator is simpler than that of the traction elevator, so the overload detection is also necessary, and danger after overload is avoided.
Disclosure of Invention
The invention provides an overload detection device of an indoor elevator and a method for controlling the elevator by using the device, wherein a winding drum is arranged between two fixed pulleys in a biased way, so that the distances between two ropes and the winding drum are different, the deformation of the two ropes under a load state is different by utilizing an asymmetric arrangement mode of the two ropes and the winding drum, the difference value of the deformation of the two ropes has a rated quantity which corresponds to the maximum rated load of the elevator car, whether the elevator car is overloaded is judged by detecting whether the difference value of the deformation of the two ropes exceeds the rated quantity, the applied structure is ingenious and reasonable, and the elevator can be timely and accurately detected to be in an overload state without arranging a complex electrical detection system, thereby solving the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: overload detection device of indoor elevator includes:
the elevator car is connected with a motor, a rotating shaft of the motor is connected with a winding drum, two ropes are arranged on the surface of the winding drum, the bottom ends of the two ropes are respectively connected with the winding drum, the top ends of the two ropes are respectively wound around the winding drum and the two fixed pulleys and then are fixed at the upper position of the elevator car, the two fixed pulleys are arranged at the two sides of the top of the elevator car, a vertical section between the top ends of the ropes and the fixed pulleys is arranged along the movement track of the elevator car to bear the elevator car, and the motor drives the winding drum to rotate so as to tighten or release the ropes on the surface of the winding drum, so that the elevator car can ascend or descend;
the winding drum is arranged between the two ropes in an offset manner, so that the deformation amounts of the two ropes in a load state are different, and the deformation amount difference value of the two ropes has a rated amount;
and the detection unit is suitable for detecting the change that the difference of the deformation amounts of the two ropes is larger than the rated amount.
Further, two fixed pulleys are connected with a supporting piece, vertical sections of two ropes are symmetrically arranged along the supporting piece, a hinge shaft is arranged on the supporting piece between the two fixed pulleys, and the supporting piece rotates along one side of the rope with large deformation in the hinge shaft, so that the supporting piece rotates with rated rotation.
Further, the detection unit includes a position detection switch provided in a rotation direction larger than a rated rotation amount of the support member.
Further, the tangential position of the rope and the winding drum near the winding drum side is positioned at the lower part of the winding drum, and the tangential position of the rope and the winding drum far from the winding drum side is positioned at the upper part of the winding drum.
Further, the hinge shaft of the supporting piece is located at the middle position of the two ropes, the motor is connected with the supporting piece, and the position of the motor changes along with the rotation of the supporting piece.
Further, the position detection switch is provided in a position change direction of the motor to detect a change in the rotational amount of the motor greater than the rated rotational amount.
Further, the device also comprises an actuating piece, wherein the actuating piece is connected with the supporting piece or the motor, the position of the actuating piece changes along with the rotation of the supporting piece or the motor, and the position of the actuating piece comprises a first position interval for enabling the position detection switch to be switched on and a second position interval for enabling the position detection switch to be switched off.
Further, the support piece is arranged between the two fixed beams, the fixed beams are arranged on two sides of the support piece along the axial direction of the hinge shaft, the hinge shaft penetrates through the support piece and then is connected with the two fixed beams, one end of the motor is connected with the support piece, the connecting position of the motor and the support piece is close to one side of a rope with small deformation, the actuating piece is arranged at the other end of the motor, the position detection switch is arranged at the lower position of the actuating piece, and the position detection switch is connected with the fixed beams.
Further, the support piece is arranged between the two fixed beams, the fixed beams are arranged on two sides of the support piece along the axial direction of the hinge shaft, the hinge shaft penetrates through the support piece and then is connected with the two fixed beams, the actuating piece and the support piece are connected with one side, close to a rope with large deformation, of the support piece, and the position detection switch is arranged below the support piece.
Further, the support piece is arranged between the two fixed beams, the fixed beams are arranged on two sides of the support piece along the axial direction of the hinge shaft, the hinge shaft penetrates through the support piece and then is connected with the two fixed beams, the actuating piece and one side of the support piece, which is close to a rope with small deformation, are connected, and the position detection switch is arranged at the upper position of the support piece.
The method for controlling the elevator by using the overload detection device comprises the following steps:
detecting an actual deformation of which the difference of the deformation of the two ropes is larger than the rated quantity;
determining whether the elevator is in an overload state according to the actual deformation;
if the elevator is in an overload state, the control motor is kept stopped and an overload alarm is sent out.
The elevator overload detection device has the beneficial effects that the winding drum is arranged between the two fixed pulleys in an offset manner, so that the distances between the two ropes and the winding drum are different, the deformation of the two ropes in a load state is different by utilizing an asymmetric arrangement mode of the two ropes and the winding drum, the difference value of the deformation of the two ropes has a rated quantity which corresponds to the maximum rated load of the elevator car, whether the elevator car is overloaded is judged by detecting whether the difference value of the deformation of the two ropes exceeds the rated quantity, the applied structure is ingenious and reasonable, and the elevator overload can be timely and accurately detected without arranging a complex electrical detection system.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic diagram of a partial side view of the present invention.
Fig. 3 is a schematic structural view of a first embodiment of the position detecting switch of the present invention.
Fig. 4 is a schematic structural view of a second embodiment of the position detecting switch of the present invention.
Fig. 5 is a schematic structural view of a third embodiment of a position detecting switch according to the present invention.
In the figure, 1, a car; 2. a motor; 3. a reel; 4. a rope; 5. a fixed pulley; 6. a support; 7. a hinge shaft; 8. a position detection switch; 9. an actuator; 10. and fixing the beam.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and thus the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," etc. indicate or refer to an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1-5, the overload detection device of the indoor elevator comprises a car 1, the car 1 is connected with a motor 2, a rotating shaft of the motor 2 is connected with a winding drum 3, two ropes 4 are arranged on the surface of the winding drum 3, the bottom ends of the two ropes 4 are respectively connected with the winding drum 3, the top ends of the two ropes 4 are respectively wound around the winding drum 3 and two fixed pulleys 5 and then are fixed at the upper position of the car 1, the two fixed pulleys 5 are arranged at the two sides of the top of the car 1, a vertical section between the top end of the rope 4 and the fixed pulleys 5 is arranged along the motion track of the car 1 to bear the car 1, and the motor 2 drives the winding drum 3 to rotate so as to tighten or release the ropes 4 on the surface of the winding drum 3, so that the car 1 ascends or descends; the winding drum 3 is arranged between the two ropes 4 in a biasing way, so that the deformation of the two ropes 4 in a load state is different, and the deformation difference value of the two ropes 4 has a rated quantity; and a detection unit is provided which is adapted to detect a change in the difference in the amounts of deformation of the two ropes 4 greater than a nominal amount. In this embodiment, the winding drum 3 is offset between the two fixed pulleys 5, the distance between the two ropes 4 and the winding drum 3 is different, and the deformation amount of the two ropes 4 in the loaded state is different by using the asymmetric arrangement mode of the two ropes 4 and the winding drum 3 of the motor 2, and the difference between the deformation amounts of the two ropes 4 has a rated amount corresponding to the maximum rated load of the car 1, for example: the rated maximum load of the car 1 is designed to be 800KG, and when the load in the car 1 is equal to 800KG, the difference value of the deformation amounts of the two ropes 4 is the rated amount; when the load in the car 1 exceeds 800KG, the difference value of the deformation amounts of the two ropes 4 exceeds the rated amount, whether the car 1 is overloaded is judged by detecting whether the difference value of the deformation amounts of the two ropes 4 exceeds the rated amount, the applied structure is ingenious and reasonable, and the elevator can be timely and accurately detected in an overload state without setting a complex electrical detection system.
In the preferred embodiment, two fixed pulleys 5 are connected with a supporting member 6, and the vertical sections of two ropes 4 are symmetrically arranged along the supporting member 6, the supporting member 6 between the two fixed pulleys 5 is provided with a hinge shaft 7, and the supporting member 6 rotates along the hinge shaft 7 to the side of the rope 4 with large deformation, so that the rotation of the supporting member 6 has rated rotation. In this embodiment, the two fixed pulleys 5 are disposed on the supporting member 6, and the supporting member 6 is hinged, the supporting member 6 rotates along the hinge shaft 7 due to the difference of the deformation amounts of the two ropes 4, the supporting member 6 rotates toward the rope 4 with larger deformation amount due to the change of the deformation amount difference of the two ropes 4, the larger the load is, the larger the difference of the deformation amounts of the two ropes 4 is, the larger the rotation angle of the supporting member 6 is, when the load reaches the rated maximum load of the car 1, the rotation amount of the supporting member 6 is the rated rotation amount, and when the car 1 is overloaded, the difference of the deformation amounts of the two ropes 4 exceeds the rated rotation amount, so that the rotation amount of the supporting member 6 exceeds the rated rotation amount.
In a preferred embodiment, the detection unit comprises a position detection switch 8, the position detection switch 8 being arranged in a rotational direction which is greater than the nominal rotational amount of the support 6. In order to detect whether the difference in the amounts of deformation of the two ropes 4 exceeds the rated amount, this can be achieved by detecting whether the amount of rotation of the support member 6 exceeds the rated amount of rotation, and therefore in this embodiment the position detection switch 8 is provided in a rotation direction greater than the rated amount of rotation of the support member 6, and when the amount of rotation of the support member 6 exceeds the rated amount of rotation, the position detection switch 8 is triggered to obtain a detection signal.
In a preferred embodiment, the tangent position of the rope 4 on the side close to the reel 3 and the reel 3 is located in the lower part of the reel 3, and the tangent position of the rope 4 on the side remote from the reel 3 and the reel 3 is located in the upper part of the reel 3. The ropes 4 are wound and connected with the winding drum 3 after passing through the fixed pulleys 5, so that the ropes 4 are reversely bent, the anti-fatigue capability of the ropes 4 is reduced due to the reverse bending, and because the winding drum 3 needs to be arranged between the two fixed pulleys 5 in a biased way, the positions of the two ropes 4 from the fixed pulleys 5 to the winding drum 3 are different, the ropes 4 on the side close to the winding drum 3 are wound from the lower part to the upper part of the winding drum 3, and the ropes 4 on the side far from the winding drum 3 are wound from the upper part of the winding drum 3 in view of the potential risk of reverse bending; if the winding direction of the ropes 4 and the winding drum 3 is opposite to the setting direction, the fatigue resistance of the ropes 4 near the winding drum 3 is seriously reduced, so that the fatigue resistance of the two ropes 4 is excessively poor, the ropes 4 near the winding drum 3 are possibly broken after long-term use, and a great potential safety hazard exists.
In the preferred embodiment, the hinge shaft 7 of the support member 6 is located at the intermediate position between the two ropes 4, the motor 2 is connected to the support member 6, and the position of the motor 2 is changed following the rotation of the support member 6. Considering the stability of the car 1, two fixed pulleys 5 on the supporting element 6 need to be symmetrically arranged along the top of the car 1, in this case, in order to make the rotation amount of the supporting element 6 more directly and accurately reflect the difference change of the deformation amounts of the two ropes 4, the hinge shaft 7 of the supporting element 6 is arranged at the middle position of the two ropes 4, so that the winding drum 3 is offset along the hinge shaft 7, the rotation amount change of the supporting element 6 is more reasonable, and the accuracy of detecting the rotation amount of the supporting element 6 is facilitated to be ensured. It will be appreciated that the motor 2 is fixedly arranged on the support member 6, and that the motor 2 and the reel 3 can be rotated in synchronism with the support member 6 to provide support for different arrangements of the position detecting switch 8.
In the preferred embodiment, the position detection switch 8 is provided in the position change direction of the motor 2 to detect a change in the rotation amount of the motor 2 greater than the rated rotation amount. In this embodiment, another arrangement mode of the position detecting switch 8 is proposed, because the above scheme describes that the motor 2 is connected to the supporting member 6, so that the motor 2 and the supporting member 6 rotate synchronously, that is, the motor 2 has a rotation amount that changes synchronously with the supporting member 6, it can be understood that the rotation amount of the motor 2 also has a rated rotation amount, and the position detecting switch 8 arranged in the rotation direction of the motor 2 can detect a state that the rotation amount of the motor 2 exceeds the rated rotation amount, that is, can detect whether the elevator is in an overload state.
It will be appreciated that the triggering of the position detecting switch 8 may be triggered by the structure of the support 6 or the motor 2 itself, for example by the protruding structure of the surface of the support 6 or the motor 2, but that this triggering makes the mounting condition of the position detecting switch 8 limited, taking into account the protruding position of the surface of the support 6 or the motor 2, resetting the position detecting switch 8 according to the protruding position, which may lead to an obstruction in the mounting of the position detecting switch 8 if the protruding position is not easily found or is not suitable, but that this also has the possibility of being able to trigger the position detecting switch, as an alternative.
In a preferred embodiment, the device further comprises an actuating member 9, wherein the actuating member 9 is connected with the supporting member 6 or the motor 2, the position of the actuating member 9 changes along with the rotation of the supporting member 6 or the motor 2, and the position of the actuating member 9 comprises a first position interval for switching on the position detecting switch 8 and a second position interval for switching off the position detecting switch. The actuating piece 9 is arranged in the embodiment, so that the actuating piece 9 is connected with the supporting piece 6 or the motor 2, and the connection position can be flexibly adjusted and selected, so that the position detection switch 8 is more convenient to install and more reasonable to match with the actuating piece 9; the actuator 9 will change position following the rotation of the support 6 or the motor 2, whereas since the difference in the amounts of deformation of the two ropes 4 has two intervals not exceeding the rated amount of deformation and exceeding the rated amount of deformation, the amount of rotation of the support 6 or the motor 2 has two intervals not exceeding the rated amount of rotation and exceeding the rated amount of rotation, and accordingly the position of the actuator 9 on the support 6 or the motor 2 comprises a first position interval in which the position detection switch 8 is turned on and a second position interval in which the position detection switch 8 is turned off.
In the preferred embodiment, the supporting member 6 is disposed between two fixed beams 10, the fixed beams 10 are disposed on both sides of the supporting member 6 in the axial direction of the hinge shaft 7, the hinge shaft 7 passes through the supporting member 6 and is connected to the two fixed beams 10, one end of the motor 2 is connected to the supporting member 6, the connection position of the motor 2 and the supporting member 6 is close to the side of the rope 4 having small deformation, the actuating member 9 is disposed at the other end position of the motor 2, and the position detecting switch 8 is disposed at the lower position of the actuating member 9, and the position detecting switch 8 is connected to the fixed beams 10. Considering the concrete installation of the supporting element 6, a fixed beam 10 is arranged at the top of the car 1, the supporting element 6 is hinged in the fixed beam 10, the connecting position of the actuating element 9 and the motor 2 can be selectively installed at one side close to the rope 4 with large deformation, the motor 2 is connected with the supporting element 6 at one side close to the rope 4 with small deformation, the actuating element 9 can have enough rotation space, the position detection switch 8 has enough installation space so as to accurately express the difference change of the deformation of the two ropes, and the position detection switch 8 can be connected with the fixed beam 10, so that the assembly and the disassembly are convenient; if the rotational space of the actuator 9 is insufficient and the actual rated load of the car 1 is large, however, an overload condition of the car 1 still cannot be expressed when the actuator 9 rotates to the maximum position. It will be appreciated that in actual installation use, as shown in fig. 4, because the distance of the support member 6 from the top of the car 1 is limited, the position detection switch 8 is disposed at the top position of the car 1, and it may be necessary to raise the relative height of the actuating member 9 using a connecting member to ensure that the position change of the actuating member 9 has reasonable first and second position intervals.
In the preferred embodiment, as shown in fig. 5, the supporting member 6 is disposed between two fixed beams 10, the fixed beams 10 are disposed on both sides of the supporting member 6 in the axial direction of the hinge shaft 7, the hinge shaft 7 passes through the supporting member 6 and then is connected to the two fixed beams 10, the actuating member 9 and the supporting member 6 are connected to one side of the rope 4 having a large deformation amount, and the position detecting switch 8 is disposed below the supporting member 6. In the present embodiment, whether or not overload is determined by detecting whether or not the rotation amount of the support member 6 exceeds the rated rotation amount, because the rotation direction of the support member 6 is turned toward the rope 4 side where the deformation amount is large along the hinge shaft 7, the actuator 9 can be connected to the side where the support member 6 is turned downward, and therefore it is necessary to provide the position detection switch 8 at a position below the side where the support member 6 is turned downward, and in consideration of the change in distance between the position detection switch 8 and the actuator 9, the actuator 9 can be provided at a position above the support member 6 by the connection member.
In the preferred embodiment, the supporting member 6 is disposed between two fixed beams 10, the fixed beams 10 are disposed on both sides of the supporting member 6 in the axial direction of the hinge shaft 7, the hinge shaft 7 passes through the supporting member 6 and then is connected to the two fixed beams 10, the actuating member 9 is connected to the side of the supporting member 6 near the rope 4 having a small deformation amount, and the position detecting switch 8 is disposed at the upper position of the supporting member 6. In the present embodiment, whether or not the overload is detected by detecting whether or not the rotation amount of the support member 6 exceeds the rated rotation amount, because the rotation direction of the support member 6 is turned toward the rope 4 side with a large deformation amount along the hinge shaft 7, the actuator 9 can be connected to the side on which the support member 6 is turned upward, at which time the position detecting switch 8 needs to be provided at the upper position of the support member 6 so that the actuator 9 triggers the position detecting switch 8 following the upward turning of the support member 6.
The method for controlling the elevator by using the overload detection device comprises the following steps:
if the difference between the deformation amounts of the two ropes 4 is greater than the actual deformation amount of the rated amount, the rotation amount of the supporting member 6 or the motor 2 exceeds the rated rotation amount, and an actuating member 9 connected with the supporting member 6 or the motor 2 triggers a position detecting switch 8;
the position detection switch 8 triggers and then sends a signal to the controller, and the controller judges that the actual deformation of the two ropes 4 exceeds a rated amount after receiving the signal, so as to determine that the elevator is in an overload state;
if the elevator is in an overload state, the controller sends a signal to the motor 2, controlling the motor 2 to remain stopped and giving an overload alarm.
It can be understood that the controller is connected with the motor 2, the position detection switch 8 and the alarm respectively through wires, the controller can purchase a PLC controller, the position detection switch 8 can select a limit switch or a photoelectric sensor (such as a proximity switch) and can be triggered by the actuating piece 9, and the specific circuit connection of the PLC controller adopts the prior art in the field and is not repeated herein.
The above embodiments are not to be taken as limiting the scope of the invention, and any alternatives or modifications to the embodiments of the invention will be apparent to those skilled in the art and fall within the scope of the invention.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.
Claims (11)
1. Overload detection device of indoor elevator, its characterized in that includes:
the elevator car is connected with a motor, a rotating shaft of the motor is connected with a winding drum, two ropes are arranged on the surface of the winding drum, the bottom ends of the two ropes are respectively connected with the winding drum, the top ends of the two ropes are respectively wound around the winding drum and the two fixed pulleys and then are fixed at the upper position of the elevator car, the two fixed pulleys are arranged at the two sides of the top of the elevator car, a vertical section between the top ends of the ropes and the fixed pulleys is arranged along the movement track of the elevator car to bear the elevator car, and the motor drives the winding drum to rotate so as to tighten or release the ropes on the surface of the winding drum, so that the elevator car can ascend or descend;
the winding drum is arranged between the two ropes in an offset manner, so that the deformation amounts of the two ropes in a load state are different, and the deformation amount difference value of the two ropes has a rated amount;
and the detection unit is suitable for detecting the change that the difference of the deformation amounts of the two ropes is larger than the rated amount.
2. The overload detecting apparatus of an elevator in a room according to claim 1, wherein the two fixed pulleys are connected to the supporting member, and vertical sections of the two ropes are symmetrically arranged along the supporting member, the supporting member between the two fixed pulleys is provided with a hinge shaft, and the supporting member rotates along one side of the rope having a large deformation amount in the hinge shaft, so that the rotation of the supporting member has a rated rotation amount.
3. The overload detecting device of an indoor elevator according to claim 2, wherein the detecting unit includes a position detecting switch provided in a rotation direction larger than a rated rotation amount of the supporting member.
4. The overload detecting apparatus for an elevator in a room according to claim 3, wherein a tangential position of the rope and the drum near the drum side is located at a lower portion of the drum, and a tangential position of the rope and the drum far from the drum side is located at an upper portion of the drum.
5. The overload detecting apparatus of claim 3 or 4, wherein the hinge shaft of the supporter is located at a middle position of the two ropes, the motor is connected to the supporter, and a position of the motor is changed following a rotation of the supporter.
6. The overload detecting apparatus of an indoor elevator according to claim 5, wherein the position detecting switch is provided in a position change direction of the motor to detect a change in a rotation amount of the motor greater than the rated rotation amount.
7. The overload detecting apparatus for an elevator in a room according to claim 6, further comprising
The actuating piece is connected with the supporting piece or the motor, the position of the actuating piece changes along with the rotation of the supporting piece or the motor, and the position of the actuating piece comprises a first position interval for enabling the position detection switch to be on and a second position interval for enabling the position detection switch to be off.
8. The overload detecting apparatus of an elevator in a room according to claim 7, wherein the supporting member is provided between two fixing beams provided on both sides of the supporting member in an axial direction of the hinge shaft, the hinge shaft is connected to the two fixing beams after passing through the supporting member, one end of the motor is connected to the supporting member, a connection position of the motor and the supporting member is adjacent to a rope side having a small deformation amount, the actuating member is provided at the other end of the motor, and the position detecting switch is provided at a lower position of the actuating member, and the position detecting switch is connected to the fixing beams.
9. The overload detecting apparatus of an elevator in a room according to claim 7, wherein the supporting member is provided between two fixing beams, the fixing beams are provided on both sides of the supporting member in an axial direction of the hinge shaft, the hinge shaft is connected to the two fixing beams after passing through the supporting member, the actuating member is connected to one side of the supporting member near the rope having a large deformation amount, and the position detecting switch is provided below the supporting member.
10. The overload detecting apparatus of an elevator in a room according to claim 7, wherein the supporting member is provided between two fixing beams, the fixing beams are provided on both sides of the supporting member in an axial direction of the hinge shaft, the hinge shaft is connected to the two fixing beams after passing through the supporting member, the actuating member is connected to a rope side of the supporting member, which is close to the rope and has a small deformation amount, and the position detecting switch is provided at an upper position of the supporting member.
11. Method for controlling an elevator using an overload detection device according to any one of claims 1-10, characterised in that it comprises the steps of:
detecting an actual deformation of which the difference of the deformation of the two ropes is larger than the rated quantity;
determining whether the elevator is in an overload state according to the actual deformation;
if the elevator is in an overload state, the control motor is kept stopped and an overload alarm is sent out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910678984.1A CN110626907B (en) | 2019-07-25 | 2019-07-25 | Overload detection device of indoor elevator and method for controlling elevator by using overload detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910678984.1A CN110626907B (en) | 2019-07-25 | 2019-07-25 | Overload detection device of indoor elevator and method for controlling elevator by using overload detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110626907A CN110626907A (en) | 2019-12-31 |
| CN110626907B true CN110626907B (en) | 2023-07-25 |
Family
ID=68969301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910678984.1A Active CN110626907B (en) | 2019-07-25 | 2019-07-25 | Overload detection device of indoor elevator and method for controlling elevator by using overload detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110626907B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH480259A (en) * | 1967-06-05 | 1969-10-31 | Otis Elevator Co | Elevator system with a truck arrangement |
| GB1172258A (en) * | 1967-05-30 | 1969-11-26 | Otis Elevator Co | Elevator System |
| CN1427798A (en) * | 2000-05-01 | 2003-07-02 | 因温特奥股份公司 | Load-carrying means for cable operated elevators with integrated load measurement device |
| JP2006151683A (en) * | 2004-11-05 | 2006-06-15 | Kuma Lift Gijutsu Kenkyusho:Kk | Load detecting device of lift |
| EP2746207A1 (en) * | 2012-12-19 | 2014-06-25 | Kone Corporation | Elevator arrangement and method of computing control information for elevator |
| CN105523457A (en) * | 2015-12-08 | 2016-04-27 | 广州日滨科技发展有限公司 | Elevator weighting method and device |
| CN211056448U (en) * | 2019-07-25 | 2020-07-21 | 山东奔速电梯股份有限公司 | Overload detection device of indoor elevator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298307B (en) * | 2007-05-03 | 2010-06-23 | 因温特奥股份公司 | Elevator equipment, a slewing roller for elevator equipment and a method for installing a load sensor |
-
2019
- 2019-07-25 CN CN201910678984.1A patent/CN110626907B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1172258A (en) * | 1967-05-30 | 1969-11-26 | Otis Elevator Co | Elevator System |
| CH480259A (en) * | 1967-06-05 | 1969-10-31 | Otis Elevator Co | Elevator system with a truck arrangement |
| CN1427798A (en) * | 2000-05-01 | 2003-07-02 | 因温特奥股份公司 | Load-carrying means for cable operated elevators with integrated load measurement device |
| JP2006151683A (en) * | 2004-11-05 | 2006-06-15 | Kuma Lift Gijutsu Kenkyusho:Kk | Load detecting device of lift |
| EP2746207A1 (en) * | 2012-12-19 | 2014-06-25 | Kone Corporation | Elevator arrangement and method of computing control information for elevator |
| CN105523457A (en) * | 2015-12-08 | 2016-04-27 | 广州日滨科技发展有限公司 | Elevator weighting method and device |
| CN211056448U (en) * | 2019-07-25 | 2020-07-21 | 山东奔速电梯股份有限公司 | Overload detection device of indoor elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110626907A (en) | 2019-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211056448U (en) | Overload detection device of indoor elevator | |
| CN102596786B (en) | elevator | |
| WO2011010991A1 (en) | Building sway resistant elevator derailment detection system | |
| US11247881B2 (en) | Lifting apparatus for highly-mounted device and control method thereof | |
| JP2007039240A (en) | Counter clearance measuring device of elevator and its measuring method | |
| CN110626907B (en) | Overload detection device of indoor elevator and method for controlling elevator by using overload detection device | |
| CN110770159B (en) | Lifting device for high-altitude installation equipment and method for controlling lifting device | |
| CN103754731A (en) | Household trackless elevator | |
| CN211056446U (en) | Down rope looseness detection device of indoor elevator | |
| CN211056432U (en) | Household elevator | |
| CN108821045B (en) | Novel elevator releveling device | |
| JP4317603B2 (en) | Elevator equipment | |
| WO2001079105A1 (en) | Machine-room-less elevator installation structure with traction machine mounted in an extended pit | |
| CN211056433U (en) | Household elevator | |
| CN211034781U (en) | Flat layer detection operation device of indoor elevator | |
| CN110482345A (en) | A kind of home lift | |
| CN112357717A (en) | Braking safety tongs of household elevator without pit and working method | |
| CN105329731A (en) | Extension ladder guardrail | |
| WO2003078291A1 (en) | A gravity elevator | |
| CN110589655A (en) | Reversing device for drive rope of indoor elevator | |
| CN110526063A (en) | The leveling of indoor elevator detects running gear | |
| KR100420027B1 (en) | Link structure for elevator governor | |
| CN213679343U (en) | Braking safety tongs of household elevator without pit | |
| CN211056465U (en) | Reversing device for drive rope of indoor elevator | |
| JP4147527B2 (en) | Elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |