CN114920108A - Special permanent magnet synchronous motor car-sliding speed control device for elevator - Google Patents
Special permanent magnet synchronous motor car-sliding speed control device for elevator Download PDFInfo
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- CN114920108A CN114920108A CN202210629955.8A CN202210629955A CN114920108A CN 114920108 A CN114920108 A CN 114920108A CN 202210629955 A CN202210629955 A CN 202210629955A CN 114920108 A CN114920108 A CN 114920108A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 25
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 16
- 238000013016 damping Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000008093 supporting effect Effects 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000005389 magnetism Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0266—Passive systems
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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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
-
- 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
- B66B5/24—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 acting on guide ropes or cables
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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
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
-
- 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
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/284—Buffer-stops for cars, cages, or skips mounted on cars or counterweights
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
- B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses a special permanent magnet synchronous motor sliding speed control device for an elevator, which comprises: the guide rail frames are vertically and symmetrically arranged in the hoistway; the elevator car body is vertically arranged on one side of the guide rail frame, a pulley block is fixed on one side of the elevator car body through a support part, and the pulley block is connected to the guide rail frame in a sliding mode; the permanent magnet synchronous dragging machine is horizontally fixed above the guide rail frame through a mounting seat, and a dragging rope is arranged on the permanent magnet synchronous dragging machine; the connecting frame is transversely fixed on one side of the mounting seat in an overhead manner; the lower support frame assembly is arranged below the car body, and one end of the lower support frame assembly is arranged on the guide rail frame in a sliding manner; the speed control protection assemblies are vertically arranged; and the locking wheel set is installed on the connecting frame, and the locking wheel set can lock the dragged guide rope after the sliding speed of the car main body is lower than a warning threshold value.
Description
Technical Field
The invention belongs to the technical field of elevator control equipment, and particularly relates to a special permanent magnet synchronous motor vehicle sliding speed control device for an elevator.
Background
The existing elevators are all provided with elevator emergency circuit equipment and corresponding methods, and the elevator emergency circuit equipment and the corresponding methods are used for ensuring the completion of emergency rescue of the elevators under emergency conditions, so that the life safety of elevator passengers is guaranteed. At present, a permanent magnet synchronous motor is used as a low-speed elevator of a driving main machine, emergency rescue is generally finished by a method of sliding a car to a flat position to put people, but because the sliding speed of the elevator is difficult to control, the sliding protection of the elevator is realized only by a speed limiter with a sliding prevention device, so that the whole working strength is high when the elevator slides, the phenomenon of internal abrasion and damage is easy to occur, and the maintenance cost is high;
therefore, the technical personnel in the field provide a permanent magnet synchronous motor car-sliding speed control device special for an elevator to solve the problems in the background technology.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a special permanent magnet synchronous motor car-sliding speed control device for an elevator comprises:
the guide rail frames are vertically and symmetrically arranged in the hoistway;
the elevator car body is vertically arranged on one side of the guide rail frame, a pulley block is fixed on one side of the elevator car body through a support part, and the pulley block is connected to the guide rail frame in a sliding mode;
the permanent magnet synchronous dragging machine is horizontally fixed above the guide rail frame through a mounting seat, and a dragging rope is arranged on the permanent magnet synchronous dragging machine;
the connecting frame is transversely fixed on one side of the mounting seat in an overhead mode, a guide wheel is rotatably arranged at one end of the connecting frame, and the dragging rope bypasses the guide wheel and is connected with the car body;
the lower support frame assembly is arranged below the car body, and one end of the lower support frame assembly is arranged on the guide rail frame in a sliding mode;
the speed control protection assemblies are vertically arranged, each speed control protection assembly is transversely fixed on the guide rail frame, and the speed control protection assemblies can be connected with one end of the lower support frame assembly through magnetic attraction, so that when the car body slides, the speed control protection assemblies can effectively control the sliding speed of the car body; and
the locking wheel set is installed on the connecting frame, and the locking wheel set can lock the main body after the car sliding speed of the car main body is lower than a warning threshold value.
Further, preferably, the method further comprises:
the outer fixing pieces are symmetrically arranged at the upper end and the lower end of the guide rail frame from top to bottom;
the connecting rope is connected between the outer fixing pieces;
the speed measuring wheel is arranged on one side of the upper end surface of the car main body in a relatively rotating manner through the outer support;
the fastening wheel is arranged on the outer support, the connecting rope can bypass the speed measuring wheel and the fastening wheel, and the fastening wheel can effectively adjust the tightness of the connecting rope.
Further, preferably, the lower bracket assembly includes:
a fixed base;
the bearing frame plates are arranged in an overlapped mode and fixed with the fixed base, and the cross section of each bearing frame plate is of an arc-shaped structure;
the side supports are obliquely connected to the upper end face of the bearing frame plate in a bilaterally symmetrical mode, and the other ends of the side supports are connected with the car main body;
the inner springs are transversely arranged and are respectively connected between the bearing frame plate and the car main body;
the supporting springs are symmetrically connected between the fixed base and the bearing frame plate in a left-right mode;
the load-bearing column piece is obliquely connected below the fixed base, and one end of the load-bearing column piece is provided with an outer guide seat which is arranged on the guide rail frame in a limiting and sliding manner; and
and the metal plate frame is fixed on one side of the outer guide seat and is connected with each speed control protection component under the magnetic attraction effect.
Further, as preferred, still be equipped with the electromagnetism seat on one side of metal plate frame.
Further, preferably, the speed control protection assembly comprises:
embedding the base;
the sealed air bins are arranged in two groups from left to right, and each group of sealed air bins are arranged in an array manner;
the plunger rod is arranged in the sealed air bin in a sliding mode;
the lower connecting disc is fixed at the lower end of each plunger rod;
the outer connecting seat is vertically arranged on the lower connecting disc in a sliding manner through a limiting column, and an outer spring is vertically connected between the outer connecting seat and the lower connecting disc;
the electromagnetic piece can be arranged in the outer connecting seat in a relatively transverse sliding manner, and a limiting spring is further connected between the electromagnetic piece and the outer connecting seat; and
and the outer guide wheels are symmetrically and rotatably arranged above and below the outer connecting seat.
Further, preferably, the method further comprises:
the discharge cavity is transversely and correspondingly arranged on each sealed air bin on the left side;
the driving inner disc is rotatably arranged in the discharge cavity, an air pressure plug is arranged in the discharge cavity in a sliding manner, and one end of the air pressure plug is connected with the driving inner disc through a support rod;
the connecting pipe is transversely connected between the left and right sealed air bins;
the damping springs are vertically and symmetrically arranged in each sealed air bin, the sealed air bins are internally provided with abutting rings in a sliding mode, the abutting rings are connected with the damping springs, and one side of the lower end face of each sealed air bin is provided with an air hole;
the upper row of cavities is correspondingly arranged in the middle of the upper end surface of each sealed air bin, and the cross section of each upper row of cavities is of a circular structure;
the upper beam frame is transversely arranged above the sealed air bin, and a plurality of telescopic guide rods are vertically connected between the upper beam frame and the sealed air bin; and
and the blocking ball body is vertically fixed on the upper beam frame and can seal and block the upper row of cavities.
Further, the blocking ball preferably provides internal flow resistance to the upper chamber to adjust the rate of flow.
Further, as preferred, each electromagnetic component can provide the magnetic attraction effect that increases progressively from top to bottom when car main part takes place to slide, and simultaneously the jam spheroid can provide the gas choked flow effect that increases progressively to last row's chamber from top to bottom.
Further, as a preferred option, the clasping wheel set comprises a main wheel body and a secondary wheel, the secondary wheel is suspended on the main wheel body through a support rod frame in a rotating mode, and the deflection angle range of the support rod frame is 15 degrees to 78 degrees.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, a speed measuring wheel is rotatably arranged on one side of a car body and is used for measuring the speed of sliding of the car body, a plurality of speed control protection components are vertically distributed on a guide rail frame, and the speed control protection components can gradually reduce the sliding speed of an elevator in the sliding of the elevator and can timely stop sliding when the sliding speed is lower than a warning threshold value;
2. according to the invention, the lower support frame assembly is arranged below the car main body, and the lower support frame assembly can be used for carrying out car sliding buffering support on the car main body, so that the safety is improved;
3. the car sliding speed warning device is also provided with the holding wheel set, and the holding wheel set can lock the dragging rope on the car main body after the car sliding speed warning threshold value of the car main body, so that the car sliding parking is realized, the working strength of the holding wheel set is reduced, and the later maintenance cost is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a tachometer wheel according to the present invention;
FIG. 3 is a schematic structural view of a lower support assembly of the present invention;
FIG. 4 is a schematic structural view of a speed control protection assembly according to the present invention;
FIG. 5 is a schematic structural view of the sealed gas bin of the present invention;
FIG. 6 is a schematic structural view of a clasping wheel set of the present invention;
in the figure: the elevator car speed-measuring device comprises a guide rail frame 1, a permanent magnet synchronous dragging machine 11, a guide wheel 12, a speed measuring wheel 13, a fastening wheel 14, an external fixed part 15, a car body 2, a holding wheel group 3, a main wheel body 31, an auxiliary wheel 32, a lower support frame component 4, a fixed base 41, a bearing frame plate 42, a side support 43, an internal spring 44, a load-bearing column 45, an external guide seat 46, a metal plate frame 47, a speed control protection component 5, a sealed air chamber 51, an embedded seat 52, a lower connecting plate 53, a limiting column 54, an external connecting seat 55, an electromagnetic component 56, an internal driving disc 57, a damping spring 58, an abutting ring 59, an upper beam frame 510, a telescopic guide rod 511 and a blocking ball 512.
Detailed Description
Referring to fig. 1, in an embodiment of the present invention, a speed control device for a permanent magnet synchronous motor special for an elevator, includes:
the guide rail frames 1 are vertically and symmetrically arranged in the hoistway;
the lift car body 2 is vertically arranged on one side of the guide rail frame 1, a pulley block 21 is fixed on one side of the lift car body 2 through a support part, and the pulley block 21 is connected to the guide rail frame 1 in a sliding mode;
the permanent magnet synchronous dragging machine 11 is horizontally fixed above the guide rail frame 1 through a mounting seat, and a dragging rope is arranged on the permanent magnet synchronous dragging machine 11;
the connecting frame is transversely overhead-fixed on one side of the mounting seat, a guide wheel 12 is rotatably arranged at one end of the connecting frame, and the dragging rope bypasses the guide wheel 12 and is connected with the car main body 2;
the lower support frame assembly 4 is arranged below the car body 2, and one end of the lower support frame assembly 4 is arranged on the guide rail frame 1 in a sliding mode;
the speed control protection assemblies 5 are vertically arranged, each speed control protection assembly 5 is transversely fixed on the guide rail frame 1, and the speed control protection assemblies 5 can be connected with one end of the lower support frame assembly 4 through magnetic attraction, so that when the car body slides, the speed control protection assemblies 5 effectively control the sliding speed of the car body; and
the locking wheel set 3 is installed on the connecting frame, the locking wheel set 3 can lock the main body of a dragging rope after the sliding speed of the car main body 1 is lower than a warning threshold value, and the locking wheel set is directly braked and locked relative to the locking wheel set adopted by most of elevators at present, the speed of the elevator can be reduced preferentially by the speed control protection component, and when the sliding speed is lower than the warning threshold value (generally set to be 0.25m/s), the locking wheel set works, so that the functional loss of the locking wheel set during sliding of the elevator is reduced, the working failure of the locking wheel set under the high-speed sliding of the elevator is avoided, and the later maintenance cost is reduced.
In this embodiment, the method further includes:
the outer fixing pieces 15 are symmetrically arranged at the upper end and the lower end of the guide rail frame 1;
the connecting rope is connected between the outer fixing pieces 2;
a tachometer wheel 13 which is relatively rotatably arranged on one side of the upper end surface of the car body 2 through an outer bracket; the speed measuring wheel can measure the speed of the elevator sliding under rotation;
and the fastening wheel 14 is arranged on the outer bracket, the connecting rope can bypass the tachometer wheel 13 and the fastening wheel 14, and the fastening wheel 14 can effectively adjust the tightness of the connecting rope.
As a preferred embodiment, the lower support frame assembly 4 includes:
a fixed base 41;
the bearing frame plates 42 are arranged in an overlapped mode, the bearing frame plates 42 are fixed with the fixing base 41, and the cross section of each bearing frame plate 42 is of an arc-shaped structure;
a plurality of inner springs 44 arranged in a horizontal direction, each of the inner springs 44 being connected between the receiving frame plate 42 and the car body 2;
the supporting springs are symmetrically connected between the fixed base 41 and the bearing frame plate 42 in a left-right mode; during the speed reduction of the elevator sliding, the bearing frame plate can buffer the car main body under the action of elastic deformation, and meanwhile, the inner spring and the supporting spring can achieve the elastic supporting action under the action of compression deformation, so that the elevator sliding device has higher safety and stability;
the load-bearing column piece 45 is obliquely connected below the fixed base 41, one end of the load-bearing column piece 45 is provided with an outer guide seat 46, and the load-bearing column piece is limited by the outer guide seat 46 and is arranged on the guide rail frame 1 in a sliding manner; and
and the metal plate frame 47 is fixed on one side of the outer guide seat 46 and is connected with each speed control protection component 5 under the magnetic attraction effect.
In this embodiment, an electromagnetic seat is further disposed on one side of the metal plate frame 47, and it should be noted that the magnetism generated by the electromagnetic seat during operation and the magnetism generated by the speed control protection component during operation should be opposite attraction, so as to further improve the magnetic attraction strength between the lower support frame component and the speed control protection component.
In this embodiment, the speed control protection assembly 5 includes:
the insert seat 52;
the sealed air bins 51 are arranged in two groups at the left and the right, and the sealed air bins 51 of each group are arranged in a plurality;
a plunger rod slidably disposed within the sealed gas chamber 51;
a lower connecting plate 53 fixed to the lower end of each plunger rod;
the outer connecting seat 55 is vertically arranged on the lower connecting disc 53 in a sliding manner through a limiting column 54, and an outer spring is vertically connected between the outer connecting seat 55 and the lower connecting disc 53;
the electromagnetic piece 56 is arranged in the outer connecting seat 55 in a relatively transverse sliding manner, and a limiting spring is further connected between the electromagnetic piece and the outer connecting seat; and
outer guide wheel, the symmetry rotates and sets up the top and bottom of outer connecting seat 55, that is to say, under the vertical swift current car of car main part, the effect is inhaled to electromagnetism piece work production magnetism this moment, and lower carriage subassembly can carry out magnetism through the metal plate frame and inhale fixedly, make outer connecting seat along with the vertical slip of car main part, outer spring is to its elastic support, after reaching certain compressive strength, lower connection pad can carry out vertical displacement, make the plunger rod along sealed gas storehouse relative slip, and reach utmost point limit after moving at the plunger rod, lower carriage subassembly and electromagnetism piece magnetism are inhaled with the electromagnetism and are broken away from this moment, thereby through magnetism effect of inhaling under the effect many times, the swift current car speed control is carried out to elastic support etc., the safety in utilization is higher.
In this embodiment, the method further includes:
the discharge cavity is transversely and correspondingly arranged on each sealed air bin 51 on the left side;
the driving inner disc 57 is rotatably arranged in the discharge cavity, a pneumatic plug is arranged in the discharge cavity in a sliding manner, and one end of the pneumatic plug is connected with the driving inner disc 57 through a support rod;
a connection pipe transversely connected between the left and right sealed air bins 51;
damping springs 58 vertically and symmetrically arranged in each sealed air bin 51, wherein abutting rings 59 are arranged in the sealed air bins 51 in a sliding manner, the abutting rings 59 are connected with the damping springs 58, and air holes are formed in one side of the lower end face of each sealed air bin 51;
the upper row of cavities are correspondingly arranged in the middle of the upper end surface of each sealed air bin 51, and the cross section of each upper row of cavities is of a circular structure;
the upper beam frame 510 is transversely arranged above the sealing air chamber 51, and a plurality of telescopic guide rods 511 are vertically connected between the upper beam frame 510 and the sealing air chamber 51; and
the blocking ball body 512 is vertically fixed on the upper beam frame 510, and the blocking ball body 512 can seal and block the upper discharge cavity, namely, when the car body slides, the damping spring in the sealing air bin can elastically support the plunger rod, so that the secondary damping effect is achieved by matching the outer spring, the sliding control effect can be improved in the single sliding speed control, and the sliding distance is reduced.
In a preferred embodiment, the blocking ball 512 is capable of internally blocking the upper chamber to adjust the flow rate, wherein the plunger rod is capable of relatively displacing to seal the chamber when in contact with the abutment ring under normal conditions (i.e., during non-operation); and in the elevator sliding, each plunger rod positioned below can gradually extend into the sealed air bin through the displacement sliding action of the air pressure plug (at the moment, the upper row of cavities is in a blocking state), when the car main body moves to the position corresponding to the speed control protection component, each upper row of cavities on the sealed air bin in the speed control protection component adjacent to the lower row of cavities is in an unblocked state, then the car main body slides to the position corresponding to the speed control protection component, and external air is introduced into the sealed air bin through the upper row of cavities by the relative displacement of the plunger rods.
In this embodiment, each electromagnetic member 56 can provide an increasing magnetic attraction effect from top to bottom when the car body 2 slides, and the blocking ball 512 can provide an increasing air flow blocking effect to the upper row cavity from top to bottom; particularly, in the sliding vehicle, the corresponding blocking ball bodies can gradually block the upper discharge cavities from top to bottom, so that the discharge gaps of the upper discharge cavities are gradually reduced, the plunger rod is in a speed reduction state from top to bottom in the displacement relative to the sealed air bin, and the gradually enhanced speed reduction control effect of the sliding vehicle is provided; when the swift current car speed is less than 1.15m/s, the chamber all can set up to the shutoff state in the sealed gas storehouse in the fast protective assembly of each accuse that lies in car main part below this moment relatively to the each upper row on the storehouse to the provision provides high strength reverse pulling force by the plunger rod, makes car main part brake in the fast protective assembly displacement range of three accuse in adjacent below, and the wheelset of locking can correspond the work of locking in this, thereby reduces the wheelset working strength of locking, reduces inside wearing and tearing.
In this embodiment, the clasping wheel set 3 includes a main wheel body 31 and an auxiliary wheel 32, the auxiliary wheel 32 is suspended on the main wheel body 31 through a strut frame, and the deflection angle of the strut frame ranges from 15 ° to 78 °.
Specifically, when the car body slides, each speed control protection assembly positioned below the car body starts to work and shows that each plunger rod can gradually extend into a sealed air bin through the displacement sliding action of a pressure plug (at the moment, an upper row of cavities are in a blocking state), when the car body moves to the position corresponding to the speed control protection assembly, each upper row of cavities in the sealed air bin in the speed control protection assembly adjacent to the lower row of cavities in the lower row of cavities are blocked by a blocking ball body under the displacement and do not block an upper row of cavities, the plunger rods slowly slide at a low speed, the lower support assembly can be fixed by magnetic absorption through a metal plate frame, so that an outer connecting seat vertically slides along the car body, an outer spring elastically supports the outer connecting seat, and after certain compression strength is reached, the lower connecting plate can vertically move, so that the plunger rods relatively slide along the sealed air bin, and after the plunger rods reach the limit position, at the moment, the lower support frame assembly is separated from the electromagnetic component in a magnetic attraction mode, so that the speed of the sliding vehicle is controlled through the magnetic attraction effect, the elastic support and the like under the effect of multiple times, and when the speed of the sliding vehicle is lower than a warning threshold value (generally set to be 0.25m/s), the sliding vehicle works through the clasping wheel set, and therefore the functional loss and the use safety of the clasping wheel set during the sliding of the elevator are reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent substitutions or changes according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a special PMSM swift current car speed control device of elevator which characterized in that: it includes:
the guide rail frames (1) are vertically and symmetrically arranged in the shaft;
the lift car body (2) is vertically arranged on one side of the guide rail frame (1), a pulley block (21) is fixed on one side of the lift car body (2) through a support component, and the pulley block (21) is connected to the guide rail frame (1) in a sliding mode;
the permanent magnet synchronous dragging machine (11) is horizontally fixed above the guide rail frame (1) through a mounting seat, and a dragging rope is arranged on the permanent magnet synchronous dragging machine (11);
the connecting frame is transversely overhead-fixed on one side of the mounting seat, one end of the connecting frame is rotatably provided with a guide wheel (12), and the dragging rope bypasses the guide wheel (12) and is connected with the lift car main body (2);
the lower support frame assembly (4) is arranged below the car body (2), and one end of the lower support frame assembly (4) is arranged on the guide rail frame (1) in a sliding mode;
the car speed control protective assemblies (5) are vertically arranged, each speed control protective assembly (5) is transversely fixed on the guide rail frame (1), and the speed control protective assemblies (5) can be connected with one end of the lower support frame assembly (4) through the magnetic attraction effect, so that when the car body slides, the speed control protective assemblies (5) effectively control the sliding speed of the car body; and
the locking wheel set (3) is installed on the connecting frame, and the locking wheel set can (3) lock the main body of the dragging rope after the speed of sliding the car main body (1) is lower than a warning threshold value.
2. The device for controlling the speed of the permanent magnet synchronous motor vehicle sliding for the elevator as claimed in claim 1, wherein: further comprising:
the outer fixing pieces (15) are symmetrically arranged at the upper end and the lower end of the guide rail frame (1) up and down;
the connecting rope is connected between the outer fixing pieces (2);
a tachometer wheel (13) which is arranged on one side of the upper end surface of the car body (2) and can rotate relatively through an outer bracket;
fastening wheel (14), set up on the outer support, the rope of connecting can walk around tachometry wheel (13) with fastening wheel (14), just fastening wheel (14) can be to connecting the tightness of rope and effectively adjusting.
3. The device for controlling the slipping speed of the permanent magnet synchronous motor specially used for the elevator according to claim 1, characterized in that: the lower bracket assembly (4) comprises:
a fixed base (41);
the bearing frame plates (42) are arranged in an overlapped mode, the bearing frame plates (42) are fixed with the fixing base (41), and the cross section of each bearing frame plate (42) is of an arc-shaped structure;
the side brackets (43) are obliquely connected to the upper end face of the bearing frame plate (42) in a bilaterally symmetrical mode, and the other ends of the side brackets (43) are connected with the car main body (2);
a plurality of inner springs (44) which are arranged in a transverse direction, wherein each inner spring (44) is connected between the bearing frame plate (42) and the car main body (2);
the supporting springs are connected between the fixed base (41) and the bearing frame plate (42) in a bilateral symmetry manner;
the load-bearing column piece (45) is obliquely connected below the fixed base (41), one end of the load-bearing column piece (45) is provided with an outer guide seat (46), and the load-bearing column piece is limited by the outer guide seat (46) and is arranged on the guide rail frame (1) in a sliding manner; and
and the metal plate frame (47) is fixed on one side of the outer guide seat (46) and is connected with each speed control protection component (5) under the magnetic attraction effect.
4. The device for controlling the slipping speed of the permanent magnet synchronous motor specially used for the elevator according to claim 3, characterized in that: and one side of the metal plate frame (47) is also provided with an electromagnetic seat.
5. The device for controlling the slipping speed of the permanent magnet synchronous motor specially used for the elevator according to claim 1, characterized in that: the speed control protection assembly (5) comprises:
a built-in seat (52);
the sealed gas bins (51) are arranged in two groups at the left and the right, and the sealed gas bins (51) of each group are arranged in a plurality;
the plunger rod is arranged in the sealed gas cabin (51) in a sliding way;
a lower connecting disc (53) fixed at the lower end of each plunger rod;
the outer connecting seat (55) is vertically arranged on the lower connecting disc (53) in a sliding manner through a limiting column (54), and an outer spring is vertically connected between the outer connecting seat (55) and the lower connecting disc (53);
the electromagnetic piece (56) is arranged in the outer connecting seat (55) in a relatively transverse sliding manner, and a limiting spring is further connected between the electromagnetic piece and the outer connecting seat; and
the outer guide wheels are symmetrically and rotatably arranged above and below the outer connecting seat (55).
6. The permanent magnet synchronous motor slipping speed control device special for the elevator as claimed in claim 5, wherein: further comprising:
the discharge cavities are transversely and correspondingly arranged on the sealed air bins (51) on the left side;
the driving inner disc (57) is rotatably arranged in the discharge cavity, a pneumatic plug is arranged in the discharge cavity in a sliding manner, and one end of the pneumatic plug is connected with the driving inner disc (57) through a support rod;
the connecting pipe is transversely connected between the left and right sealed air bins (51);
the damping springs (58) are vertically and symmetrically arranged in the sealed air bins (51), the sealed air bins (51) are internally provided with abutting rings (59) in a sliding manner, the abutting rings (59) are connected with the damping springs (58), and one side of the lower end face of each sealed air bin (51) is provided with an air hole;
the upper row of cavities are correspondingly formed in the middle of the upper end face of each sealed air bin (51), and the cross sections of the upper row of cavities are of a circular structure;
the upper beam frame (510) is transversely arranged above the sealed gas cabin (51), and a plurality of telescopic guide rods (511) are vertically connected between the upper beam frame (510) and the sealed gas cabin (51); and
and the blocking ball body (512) is vertically fixed on the upper beam frame (510), and the blocking ball body (512) can seal and block the upper row of cavities.
7. The device for controlling the speed of the permanent magnet synchronous motor vehicle sliding for the elevator as claimed in claim 6, wherein: the blocking sphere (512) is capable of internally choking the upper row of chambers to adjust the rate of airflow.
8. The device for controlling the slipping speed of the permanent magnet synchronous motor specially used for the elevator according to claim 7, characterized in that: each electromagnetic part (56) can provide an increasing magnetic attraction effect from top to bottom when the car body (2) slides, and simultaneously the blocking ball body (512) can provide an increasing air flow blocking effect to the upper row cavity from top to bottom.
9. The device for controlling the speed of the permanent magnet synchronous motor vehicle sliding for the elevator as claimed in claim 1, wherein: the enclasping wheel set (3) comprises a main wheel body (31) and an auxiliary wheel (32), the auxiliary wheel (32) is erected on the main wheel body (31) through a support rod frame in a rotating mode, and the deflection angle range of the support rod frame is 15 degrees to 78 degrees.
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|---|---|---|---|
| CN202210629955.8A CN114920108B (en) | 2022-06-06 | 2022-06-06 | Permanent magnet synchronous motor car sliding speed control device special for elevator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210629955.8A CN114920108B (en) | 2022-06-06 | 2022-06-06 | Permanent magnet synchronous motor car sliding speed control device special for elevator |
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| CN114920108B CN114920108B (en) | 2023-11-28 |
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| CN107500074A (en) * | 2017-09-19 | 2017-12-22 | 商洛市虎之翼科技有限公司 | A kind of simple reliable elevator anti roll system and method |
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| CN208631868U (en) * | 2018-06-21 | 2019-03-22 | 天津市宇程电梯配件有限公司 | It is a kind of to promote the guide for elevator for dragging gravitation |
| CN113060615A (en) * | 2021-04-07 | 2021-07-02 | 瑞姆沃（苏州）系统科技有限公司 | Quick response's combined type elevator braking protection device |
| CN216155264U (en) * | 2021-09-06 | 2022-04-01 | 苏州萤火机电科技有限公司 | Reliable villa elevator anti-falling mechanism |
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2022
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013175546A1 (en) * | 2012-05-21 | 2013-11-28 | 株式会社日立製作所 | Elevator device |
| CN103964273A (en) * | 2014-04-29 | 2014-08-06 | 宁波宏大电梯有限公司 | Slide speed control method of elevator based on permanent magnet synchronous motor |
| JP3207470U (en) * | 2016-09-01 | 2016-11-10 | 財達 張 | Elevator instantaneous braking protection device |
| CN106185524A (en) * | 2016-09-26 | 2016-12-07 | 常熟理工学院 | Elevator prevents the safety guard of car accidental movement and hypervelocity |
| CN107500074A (en) * | 2017-09-19 | 2017-12-22 | 商洛市虎之翼科技有限公司 | A kind of simple reliable elevator anti roll system and method |
| CN208631868U (en) * | 2018-06-21 | 2019-03-22 | 天津市宇程电梯配件有限公司 | It is a kind of to promote the guide for elevator for dragging gravitation |
| CN109279470A (en) * | 2018-11-22 | 2019-01-29 | 迈格钠磁动力股份有限公司 | A kind of Elevator landing security protection system |
| CN113060615A (en) * | 2021-04-07 | 2021-07-02 | 瑞姆沃（苏州）系统科技有限公司 | Quick response's combined type elevator braking protection device |
| CN216155264U (en) * | 2021-09-06 | 2022-04-01 | 苏州萤火机电科技有限公司 | Reliable villa elevator anti-falling mechanism |
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|---|---|
| CN114920108B (en) | 2023-11-28 |
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