CN114104877B - Four-quadrant variable frequency elevator driving device - Google Patents
Four-quadrant variable frequency elevator driving device Download PDFInfo
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- CN114104877B CN114104877B CN202111295410.XA CN202111295410A CN114104877B CN 114104877 B CN114104877 B CN 114104877B CN 202111295410 A CN202111295410 A CN 202111295410A CN 114104877 B CN114104877 B CN 114104877B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims description 45
- 230000005389 magnetism Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
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- 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)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Elevator Control (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a four-quadrant variable frequency elevator driving device, and relates to the technical field of four-quadrant variable frequency elevator driving. The four-quadrant variable frequency elevator driving device comprises an elevator car, wherein a motor is arranged at the top of the elevator car, a four-quadrant variable frequency box is arranged on the right side of the motor, an inverter is arranged on the inner wall of the front side of the four-quadrant variable frequency box, four connecting grooves are formed in the front side of the four-quadrant variable frequency box, fixed sleeves are fixedly connected with the surface of the front side of the inverter, the surfaces of the four fixed sleeves are respectively connected with the four connecting grooves formed in the inner wall of the four-quadrant variable frequency box in a sliding mode, and connecting mechanisms are arranged in the four fixed sleeves. Through coupling mechanism's setting, make operating personnel not need just can accomplish the connection between dc-to-ac converter and the four-phase frequency conversion case with the help of the instrument, solved the inverter and at the great problem of four-phase frequency conversion case internally mounted degree of difficulty, improved the installation rate of dc-to-ac converter, improved operating personnel's work efficiency.
Description
Technical Field
The invention relates to the technical field of four-quadrant variable frequency elevator driving, in particular to a four-quadrant variable frequency elevator driving device.
Background
The four-quadrant elevator frequency converter uses controllable rectification, namely, a power semiconductor is adopted to replace a diode (the power semiconductor can be an IGBT or a thyristor and the like), a three-phase input alternating current power supply is controlled to be rectified into direct current through a Pulse Width Modulation (PWM) signal, energy is fed back to a power grid for regeneration and utilization, and meanwhile, bidirectional flow of energy is realized, so that four-quadrant operation of the elevator is realized.
However, the four-phase frequency converter is used for realizing the purpose of converting potential energy into alternating current which can be directly used by a motor, and better utilizing energy sources, so that the modules such as an inverter, a power supply, a conversion circuit, an isolation circuit, overvoltage/undervoltage protection and the like are assembled in the four-phase frequency converter, and further, the internal space of the four-phase frequency converter is very narrow, however, an elevator used in a construction site is required to be repeatedly used for conveying building materials, in order to save energy sources, all the modules in the four-phase frequency converter are always in a working state, particularly, the working load of the inverter for converting and utilizing the energy generated when the elevator runs is the largest at all times, meanwhile, the four-phase frequency converter on the construction site is generally arranged in a simple shed beside the elevator for conveniently controlling the elevator, only can play a role of shading the four-phase frequency converter, and further, people cannot be well shaded for the four-phase frequency converter, the inverter is very easy to be damaged due to continuous working states and external high temperatures, and the inverter is required to be always in a working state, and the number of screws are required to be replaced with the four-phase frequency converter, and the number of the four-phase frequency converter is very difficult to be inserted into the space between the four-phase frequency converter and the inverter is usually replaced by a screw, and the internal space of the four-phase frequency converter is difficult to be connected with the inverter by a screw driver, and the internal space of the inverter is usually replaced by the four-phase frequency converter, and the inverter is difficult to be connected with the internal space of the inverter.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a four-quadrant variable frequency elevator driving device which can solve the problem of high installation difficulty of an inverter.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a four-quadrant variable frequency elevator drive arrangement, includes the elevator car, the top of elevator car is provided with the motor, the right side of motor is provided with the four-quadrant variable frequency case, the front side inner wall of four-quadrant variable frequency case is provided with the dc-to-ac converter, four spread grooves have been seted up to the inside of four-quadrant variable frequency case front side, the fixed cover of fixed surface connection of dc-to-ac converter front side, four spread grooves sliding connection is seted up with four spread grooves that four-quadrant variable frequency case inner wall was seted up respectively on the surface of dc-to-ac converter, four slots that run through the dc-to-ac converter surface have been seted up on the surface of dc-to-ac converter, the inner wall sliding connection of the slot that the dc-to-ac converter surface was seted up has the push rod, the front end of push rod runs through the inside of the slot that the dc-to-ac converter surface was seted up and the inner wall sliding connection of fixed cover, the inside of four fixed cover all is provided with coupling mechanism.
Preferably, the coupling mechanism includes the extrusion pole, the surface of extrusion pole and the inner wall sliding connection of fixed cover, the front end of extrusion pole is toper and contains magnetism, the front end fixed connection of rear end and push rod of extrusion pole, the spout that runs through fixed cover surface is all offered to the upper and lower both sides on fixed cover surface, the inner wall of two spouts that the fixed cover is inside to be offered all sliding connection has first kelly, the relative end and the surface sliding connection of extrusion pole of two first kelly, and with the surface looks mutual attraction of extrusion pole, the draw-in groove has all been offered to the upper and lower both sides of the spread groove inner wall that the interior of four-phase frequency conversion case was offered, the inner wall sliding connection of two draw-in grooves that the surface of two first kelly was offered with the interior of four-phase frequency conversion case respectively.
Preferably, the rear end fixedly connected with of extrusion pole is with the first elastic element of the surface activity cup joint of push rod, and the one end fixed connection of first elastic element keeping away from the extrusion pole is at the inner wall of fixed cover.
Preferably, the front side and the rear side of the inner walls of the two sliding grooves formed in the fixing sleeve are fixedly connected with trapezoid blocks, the front side and the rear side of the surfaces of the two first clamping rods are respectively provided with trapezoid grooves, and the inner walls of the four trapezoid grooves formed in the surfaces of the two first clamping rods are respectively in sliding connection with the four trapezoid blocks.
Preferably, disconnection grooves which are respectively communicated with the four slots are formed in the periphery of the top of the inverter, and pressing rods are slidably connected to the inner walls of the four disconnection grooves formed in the surface of the inverter.
Preferably, the limiting rods are fixedly connected to the front side and the rear side of the surface of the pressing rod, the front side and the rear side of the inner wall of the breaking groove formed in the surface of the inverter are provided with limiting grooves, and the inner walls of the two limiting grooves formed in the inverter are respectively connected with the surfaces of the two limiting rods in a sliding mode.
Preferably, the surface of the push rod is provided with an extrusion groove, the inner wall of the extrusion groove formed in the surface of the push rod is slidably connected with a second clamping rod, the top end of the second clamping rod is hemispherical, and the surface of the second clamping rod is slidably connected with the inner wall of the break groove formed in the surface of the inverter.
Preferably, the lower end of the second clamping rod is fixedly connected with a second elastic element, and one end of the second elastic element, which is far away from the second clamping rod, is fixedly connected with the inner wall of an extrusion groove formed in the surface of the push rod.
Preferably, a balancing weight is arranged on the right side of the elevator car.
Preferably, a brake resistor is arranged at the rear side of the four-quadrant frequency conversion box.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the four-quadrant variable frequency elevator driving device, through the arrangement of the connecting mechanism, an operator can complete connection between the inverter and the four-quadrant variable frequency box without using tools, the problem that the inverter is difficult to install in the four-quadrant variable frequency box is solved, the installation difficulty of the inverter is reduced, the installation speed of the inverter is improved, the working efficiency of the operator is improved, and the practicability of the device is improved.
(2) According to the four-quadrant variable frequency elevator driving device, through the arrangement of the pressing rod, an operator can clearly know whether the inverter is successfully connected, judgment in the operator is facilitated, uncertainty in connection of the inverter is avoided, and correct connection of the device is guaranteed.
(3) This four-quadrant variable frequency elevator drive arrangement, through the setting of two first clamping bars and the surperficial looks mutual attraction of extrusion pole, make the opposite end of two first clamping bars contact with the surface of extrusion pole all the time, and then avoided two first clamping bars to remove in the inside of two draw-in grooves respectively, and then avoided the unable dismantlement of device, guaranteed device operation rationality.
(4) According to the four-quadrant variable frequency elevator driving device, through the arrangement of the pressing rod, an operator can detach the inverter from the four-quadrant variable frequency box only by pressing the pressing rod, the detachment difficulty of the inverter is reduced, the time is greatly saved, the detachment speed of the operator is improved, and the practicability of the device is improved.
(5) According to the four-quadrant variable frequency elevator driving device, through the arrangement of the four trapezoidal blocks and the four trapezoidal grooves, the two first clamping rods cannot be separated from the interiors of the two sliding grooves, so that the two first clamping rods can only move up and down in the interiors of the two sliding grooves, the deviation of the moving directions of the two first clamping rods is avoided, the normal operation of the device is ensured, and the operation rationality of the device is improved.
(6) This four-quadrant variable frequency elevator drive arrangement, the degree of pressing through the length of pressing the pole is the same with the degree of depth of breaking the groove, and then has made things convenient for operating personnel to know the degree of pressing, has avoided pressing the pole to press the degree not enough, leads to the unable problem of dismantling of dc-to-ac converter, has made things convenient for operating personnel to the dismantlement of dc-to-ac converter.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic structural diagram of a driving device of a four-quadrant variable frequency elevator of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the four-quadrant frequency conversion box of the invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a schematic view of the internal structure of the connecting groove of the present invention;
FIG. 5 is a schematic view showing the internal structure of the fixing sleeve of the present invention;
FIG. 6 is an enlarged view of FIG. 5 at B;
FIG. 7 is a schematic diagram of the internal structure of the slot according to the present invention;
FIG. 8 is an enlarged view of FIG. 7 at C;
FIG. 9 is a schematic view showing the internal structure of the extrusion tank of the present invention.
Reference numerals: the elevator car 2, the balancing weight 3, the braking resistor 4, the four-quadrant frequency conversion box 5, the inverter 6, the push rod 7, the slot 8, the pressing rod 9, the disconnection slot 10, the connection slot 11, the clamping slot 12, the first clamping rod 13, the fixed sleeve 14, the limiting rod 15, the first elastic element 16, the pressing rod 17, the sliding chute 18, the trapezoid block 19, the trapezoid slot 20, the limiting slot 21, the pressing slot 22, the second clamping rod 23 and the second elastic element 24.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, greater than, less than, exceeding, etc. are understood to exclude this number, and above, below, within, etc. are understood to include this number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Embodiment one:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a four-quadrant variable frequency elevator drive arrangement, including elevator car 2, the top of elevator car 2 is provided with motor 1, through the setting of motor 1, the lift of drive elevator car 2, the right side of elevator car 2 is provided with balancing weight 3, through the setting of balancing weight 3, make elevator car 2 keep balance in the lift process, and utilize self weight, for the device energy saving, elevator car 2 and balancing weight 3 are with the both ends of outside chain respectively, the surface of chain is connected with the output of motor 1 simultaneously, make elevator car 2 can smooth operation, the right side of motor 1 is provided with four-image frequency conversion case 5, through the setting of four-image frequency conversion case 5, the energy feedback when making motor 1 slow down is to the electric wire netting, the loss of energy has been reduced, the effect of device energy saving has been improved, the rear side of four-image frequency conversion case 5 is provided with brake resistor 4 through the setting of brake resistor 4, the unnecessary electric energy that produces motor 1 consumes, prevent that the inside voltage of four-image frequency conversion case 5 is too high and lead to the overheat of device or the stable work of four-image frequency conversion case 5 has been guaranteed.
Further, when the device is used, when the motor 1 drives the elevator car 2 to ascend, the four-image frequency conversion box 5 drags the motor 1 to work against gravity, the motor 1 is in an electric state at the moment, when the elevator car 2 descends, the gravity drags the motor 1 to generate electricity, the motor 1 at the moment is in a generating state, then the generated electricity is fed back to the whole electric network through the transmission inside the four-image frequency conversion box 5, and then the device converts potential energy into electric energy to be transmitted to the whole electric network in the use process, so that the electricity-saving effect is improved, and the energy loss in the braking process is reduced.
Embodiment two;
referring to fig. 2-4, on the basis of the first embodiment, an inverter 6 is disposed on the inner wall of the front side of the four-image frequency conversion box 5, through the arrangement of the inverter 6, direct current inside the four-image frequency conversion box 5 is converted into alternating current, so as to provide power output for the motor 1, four connecting grooves 11 are formed inside the front side of the four-image frequency conversion box 5, a fixed sleeve 14 is fixedly connected to the surface of the front side of the inverter 6, the surfaces of the four fixed sleeves 14 are respectively slidably connected with the four connecting grooves 11 formed on the inner wall of the four-image frequency conversion box 5, four slots 8 penetrating the surface of the inverter 6 are formed on the surface of the inverter 6, and as the four slots 8 are formed at corners of the inverter 6, damage to internal elements of the inverter 6 is not caused, the operation of the inverter 6 is not affected, and as the structures inside the four slots 8 are identical, only one connecting groove 11 is described herein, the inner wall of the slot 8 formed on the surface of the inverter 6 is slidably connected with a push rod 7, the front end of the push rod 7 is slidably connected with the inner wall of the slot 8 formed on the surface of the fixed sleeve 14, and the four fixed sleeves 14 are connected inside the connecting mechanism.
Referring to fig. 5-6, the connection mechanism comprises an extrusion rod 17, the surface of the extrusion rod 17 is slidably connected with the inner wall of a fixed sleeve 14, the front end of the extrusion rod 17 is conical and has magnetism, the rear end of the extrusion rod 17 is fixedly connected with the front end of a push rod 7, the rear end of the extrusion rod 17 is fixedly connected with a first elastic element 16 movably sleeved with the surface of the push rod 7, one end of the first elastic element 16, far away from the extrusion rod 17, is fixedly connected with the inner wall of the fixed sleeve 14, the upper side and the lower side of the surface of the fixed sleeve 14 are respectively provided with a chute 18 penetrating through the surface of the fixed sleeve 14, the front side and the rear side of the inner wall of two chutes 18 provided inside the fixed sleeve 14 are respectively fixedly connected with a trapezoid block 19, the inner walls of two chutes 18 provided inside the fixed sleeve 14 are respectively slidably connected with a first clamping rod 13, the opposite ends of the two first clamping rods 13 are respectively have magnetism, the opposite ends of the two first clamping rods 13 are respectively slidably connected with the surface of the extrusion rod 17, in the initial state of the device, opposite ends of the two first clamping rods 13 are contacted with conical ends of the extrusion rods 17, trapezoid grooves 20 are formed in the front side and the rear side of the surfaces of the two first clamping rods 13, inner walls of four trapezoid grooves 20 formed in the surfaces of the two first clamping rods 13 are respectively connected with four trapezoid blocks 19 in a sliding mode, further through arrangement of the four trapezoid blocks 19 and the four trapezoid grooves 20, the two first clamping rods 13 cannot be separated from the interiors of the two sliding grooves 18, the two first clamping rods 13 can only move up and down in the interiors of the two sliding grooves 18, deviation of moving directions of the two first clamping rods 13 is avoided, normal operation of the device is guaranteed, rationality of operation of the device is improved, clamping grooves 12 are formed in the upper side and the lower side of the inner wall of a connecting groove 11 formed in the interior of a four-image frequency conversion box 5, the surfaces of the two first clamping rods 13 are respectively connected with the inner walls of two clamping grooves 12 formed in the four-quadrant frequency conversion box 5 in a sliding manner.
Referring to fig. 7-9, the open slots 10 respectively connected with the four slots 8 are formed around the top of the inverter 6, because the inner structure of the four open slots 10 is the same, only one open slot 10 is described herein, the inner wall of the open slot 10 formed on the surface of the inverter 6 is slidably connected with the pressing rod 9, the length of the pressing rod 9 is the same as the depth of the open slot 10, thereby facilitating the understanding of the pressing degree by an operator, avoiding the problem that the pressing rod 9 is not sufficiently pressed, resulting in the incapability of disassembling the inverter 6, facilitating the disassembly of the inverter 6 by the operator, the front and rear sides of the surface of the pressing rod 9 are fixedly connected with the limiting rods 15, the front and rear sides of the inner wall of the open slot 10 formed on the surface of the inverter 6 are respectively provided with the limiting slots 21, the inner walls of the two limiting slots 21 formed inside the inverter 6 are respectively slidably connected with the surfaces of the two limiting rods 15, further, the follow-up operation of the pressing rod 9 from the open slot 10 is avoided through the arrangement of the limiting rods 15, the follow-up operation is avoided, the complete shape of the structure of the device is ensured, the smooth operation of the device is ensured, the clamping element is prevented from being successfully operated, the clamping element is pressed by the clamping element is arranged on the inner wall of the clamping rod 7, and the clamping element is provided with the second end of the clamping element 23 is provided with the second end of the elastic element 23, and is provided with the second end 23, and is fixedly connected with the second end of the elastic element 23, and is provided with the second end 23, and is provided with the clamping element is 23.
When the inverter 6 is connected with the four-quadrant frequency conversion box 5, the four fixing sleeves 14 on the front side of the inverter 6 are respectively aligned with the four connecting grooves 11, then the inverter 6 is pressed, the four fixing sleeves 14 are respectively inserted into the interiors of the four connecting grooves 11, then the inverter 6 is initially connected, then the second clamping rods 23 are sequentially pressed, the second clamping rods 23 slide down in the extrusion grooves 22, then the second elastic elements 24 are extruded, the second elastic elements 24 are in a compressed state, then the push rod 7 is pushed, the push rod 7 slides forward in the slot 8, the second clamping rods 23 enter the slot 8, then the push rod 7 is continuously pushed, the second clamping rods 23 slide forward in the slot 8, the push rod 7 slides forward, the extrusion rods 17 slide forward in the interiors of the fixing sleeves 14, and the first elastic elements 16 are stretched, simultaneously, the front end of the extrusion rod 17 slides and moves forward between the two first clamping rods 13, and as the front end of the extrusion rod 17 is conical, the opposite ends of the two first clamping rods 13 slide on the surface of the extrusion rod 17 along with the sliding forward movement of the extrusion rod 17, and meanwhile, the distance between the two first clamping rods 13 is increased, and further, the two first clamping rods 13 slide in opposite directions in the two sliding grooves 18 respectively, and further, the opposite ends of the two first clamping rods 13 are respectively inserted into the two clamping grooves 12, and further, the distance between the two first clamping rods 13 can be increased along with the forward movement of the extrusion rod 17 through the arrangement of the conical ends of the extrusion rod 17, so that the two first clamping rods 13 can smoothly enter the two clamping grooves 12 respectively, the rationality of the device in running is ensured, and along with the continuous pushing of the push rod 7, the top of second draw-in bar 23 and the lower extreme contact of pressing rod 9, and then under the elasticity of second elastic element 24, the top of second draw-in bar 23 extrudees pressing rod 9, and then make second draw-in bar 23 and pressing rod 9 all slide at the inside of disconnect groove 10 and move up, make second draw-in bar 23 get into the inside of disconnect groove 10, two first draw-in bars 13 break away from the conical tip of extrusion rod 17 this moment, two first draw-in bars 13 all have half to lie in the inside of two draw-in grooves 12 this moment, and then through pressing rod 9's setting, make operating personnel can know clearly that inverter 6 has been connected successfully, the judgement in the operating personnel has been made things convenient for, the connection uncertainty of inverter 6 has been avoided, the correct connection of device has been guaranteed, simultaneously through the setting up of first elastic element 16, make two first draw-in bars 13 and a second draw-in bar 23 extrude two draw-in grooves 12 and a disconnect groove 10 respectively, avoid two first draw-in bars 13 to break away from two draw-in grooves 12 respectively, second draw-in bar 23 break away from in bar 23 from the inside of disconnect groove 10, the inside of guaranteeing that two draw-in bars 12 break away from 5 and be connected device from 5, the setting up the switching device has been guaranteed, the setting up of four-phase change conversion device has been like 5 and the inverter 6 has been accomplished, the setting up the speed of the switching device has been like that can be connected between the operating personnel has been difficult, the operating personnel has been solved, the setting up the inverter 6 can be like a four-phase change device, and the speed can be like the operating personnel has been connected, and the speed 5 can be like, and can be connected, and can be mounted, and can be like the speed.
When the inverter 6 needs to be disassembled, only the pressing rod 9 needs to be pressed downwards at the moment, and then the pressing rod 9 and the second clamping rod 23 slide downwards in the breaking groove 10, and then the pressing rod 17 slides backwards in the fixing sleeve 14 under the condition of insufficient pressing force of the pressing rod 9, under the elastic force of the first elastic element 16, the second clamping rod 23 can be extruded by the breaking groove 10, so that the pressing force of an operator on the pressing rod 9 is reduced, the operation of the operator is facilitated, the sliding downwards movement of the pressing rod 9 is facilitated, the second elastic element 24 is further compressed, when the pressing rod 9 is completely pressed into the breaking groove 10, the second clamping rod 23 is completely separated from the range of the breaking groove 10, and then the pressing rod 17 slides backwards in the fixing sleeve 14 under the elastic force of the first elastic element 16, and then the pushing rod 7 slides backwards in the slot 8, and simultaneously the opposite ends of the two first clamping rods 13 slide on the surfaces of the breaking rod 17 respectively, the two first clamping rods 13 enter the pressing rod 17 again, and the two opposite ends of the two clamping rods 13 are prevented from being separated from the opposite to each other by the elastic element 12 at the same time, and the two opposite elastic elements are prevented from being completely separated from the inner surfaces of the first clamping rods 13 and the two clamping rods 13 and further being completely separated from the inner surfaces of the first clamping rods 13 and the elastic element 13 and the opposite to the second clamping rod is completely separated from the first clamping rod 13 is completely and completely arranged, and the elastic element is further, and the elastic element is completely separated from the inner between the two clamping rods is completely and is completely separated from the two opposite the pressing rod 13 and is arranged in the pressing rod 13 and is further completely inside the pressing groove 13 and is completely opposite the pressing groove 13 and is completely opposite outwards, the disassembly between the inverter 6 and the four-quadrant frequency conversion box 5 can be completed by only pressing the pressing rod 9 by an operator, the disassembly difficulty of the inverter 6 is reduced, the time is greatly saved, the disassembly speed of the operator is improved, and the practicability of the device is improved.
The four-quadrant frequency conversion box 5 is made of aluminum, magnetic force between the extrusion rod 17 and the two first clamping rods cannot be influenced, meanwhile, the first elastic element 16 and the second elastic element 24 are springs made of phosphor-copper, and the four-quadrant frequency conversion box is not influenced by the magnetic force between the extrusion rod 17 and the two first clamping rods, so that the device can run smoothly.
Working principle: when the inverter 6 is connected with the four-image frequency conversion box 5, the four fixing sleeves 14 on the front side of the inverter 6 are respectively aligned with the four connecting grooves 11, then the inverter 6 is pressed, the four fixing sleeves 14 are respectively inserted into the interiors of the four connecting grooves 11, then the second clamping rod 23 is sequentially pressed, the second clamping rod 23 slides down in the interior of the extrusion groove 22, then the second elastic element 24 is extruded, then the push rod 7 is pushed, the second clamping rod 23 enters the interior of the slot 8, the push rod 7 slides forward, the extrusion rod 17 slides forward in the interiors of the fixing sleeves 14, the first elastic element 16 stretches, the front end of the extrusion rod 17 slides forward between the two first clamping rods 13, the opposite ends of the two first clamping rods 13 are respectively inserted into the interiors of the two clamping grooves 12, the tops of the second clamping rods 23 are contacted with the lower end of the pressing rod 9 along with the continuous pushing of the push rod 7, and then the second clamping rod 23 and the pressing rod 9 are disconnected in the state of the two opposite ends of the two clamping rods 10 on the two grooves 10 under the elasticity of the second elastic element 24, and the two clamping rods 23 are disconnected from the two opposite ends of the two clamping rods 10 in the state of the two opposite sides of the four-image frequency conversion box 5 respectively, and the two inverter 6 are disconnected from the two inverter grooves 10 respectively.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (7)
1. A four-quadrant variable frequency elevator driving device is characterized in that: the elevator comprises an elevator car (2), wherein a motor (1) is arranged at the top of the elevator car (2), a four-image frequency conversion box (5) is arranged on the right side of the motor (1), an inverter (6) is arranged on the inner wall of the front side of the four-image frequency conversion box (5), four connecting grooves (11) are formed in the front side of the four-image frequency conversion box (5), a fixed sleeve (14) is fixedly connected to the surface of the front side of the inverter (6), the surfaces of the four fixed sleeves (14) are respectively in sliding connection with the four connecting grooves (11) formed in the inner wall of the four-image frequency conversion box (5), four slots (8) penetrating through the surfaces of the inverter (6) are formed in the surfaces of the inverter (6), push rods (7) are connected to the inner walls of the slots (8) formed in the surfaces of the inverter in a sliding manner, and connecting mechanisms are arranged in the inner walls of the slots (8) formed in the front of the push rods (7) and the inner walls of the fixed sleeves (14) in a sliding manner;
the connecting mechanism comprises an extrusion rod (17), the surface of the extrusion rod (17) is in sliding connection with the inner wall of a fixed sleeve (14), the front end of the extrusion rod (17) is conical and contains magnetism, the rear end of the extrusion rod (17) is fixedly connected with the front end of a push rod (7), sliding grooves (18) penetrating through the surface of the fixed sleeve (14) are formed in the upper side and the lower side of the surface of the fixed sleeve (14), first clamping rods (13) are fixedly connected with the inner walls of two sliding grooves (18) formed in the fixed sleeve (14), the opposite ends of the two first clamping rods (13) are in sliding connection with the surface of the extrusion rod (17), the surfaces of the four-image frequency conversion box (5) are mutually attracted with the surfaces of the extrusion rod (17), clamping grooves (12) are formed in the upper side and the lower side of the inner wall of the connecting groove (11) formed in the interior of the four-image frequency conversion box (5), the rear end of the two first clamping rods (13) are fixedly connected with the inner walls of the two clamping grooves (12) formed in the interior of the four-image frequency conversion box (5), the two elastic elements (16) are fixedly connected with the inner walls of the first clamping grooves (16) formed in the interior of the surface of the push rod (7) and are respectively, the two elastic elements (16) are fixedly connected with the inner walls of the first clamping elements (16) and are connected with the inner walls of the inner walls (16) of the inner walls of the push rod (7 respectively, trapezoidal grooves (20) are formed in the front side and the rear side of the surfaces of the two first clamping rods (13), and the inner walls of the four trapezoidal grooves (20) formed in the surfaces of the two first clamping rods (13) are respectively connected with four trapezoidal blocks (19) in a sliding mode.
2. The four-quadrant variable frequency elevator driving device according to claim 1, characterized in that: break grooves (10) which are respectively communicated with the four slots (8) are formed in the periphery of the top of the inverter (6), and pressing rods (9) are slidably connected to the inner walls of the four break grooves (10) formed in the surface of the inverter (6).
3. The four-quadrant variable frequency elevator driving device according to claim 2, characterized in that: limiting rods (15) are fixedly connected to the front side and the rear side of the surface of the pressing rod (9), limiting grooves (21) are formed in the front side and the rear side of the inner wall of a breaking groove (10) formed in the surface of the inverter (6), and the inner walls of the two limiting grooves (21) formed in the inverter (6) are respectively connected with the surfaces of the two limiting rods (15) in a sliding mode.
4. A four-quadrant variable frequency elevator driving device according to claim 3, characterized in that: the surface of push rod (7) has seted up extrusion groove (22), and the inner wall sliding connection of extrusion groove (22) of push rod (7) surface set up has second clamping rod (23), and the top of second clamping rod (23) is hemispherical, and the inner wall sliding connection of break slot (10) of surface set up of second clamping rod (23) and dc-to-ac converter (6).
5. The four-quadrant variable frequency elevator driving device according to claim 4, wherein: the lower end of the second clamping rod (23) is fixedly connected with a second elastic element (24), and one end, far away from the second clamping rod (23), of the second elastic element (24) is fixedly connected with the inner wall of an extrusion groove (22) formed in the surface of the push rod (7).
6. The four-quadrant variable frequency elevator driving device according to claim 5, wherein: the right side of the elevator car (2) is provided with a balancing weight (3).
7. The four-quadrant variable frequency elevator driving device according to claim 6, wherein: the rear side of the four-quadrant frequency conversion box (5) is provided with a brake resistor (4).
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| CN202111295410.XA CN114104877B (en) | 2021-11-03 | 2021-11-03 | Four-quadrant variable frequency elevator driving device |
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| CN114104877A (en) | 2022-03-01 |
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Denomination of invention: A Four Quadrant Variable Frequency Elevator Drive Device Granted publication date: 20230526 Pledgee: Zhejiang Nanxun Rural Commercial Bank branch Linghu Limited by Share Ltd. Pledgor: SUXUN ELEVATOR Co.,Ltd. Registration number: Y2024330000593 |
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