CN113602932B - Car monitoring devices and vertical conveying equipment - Google Patents

Car monitoring devices and vertical conveying equipment Download PDF

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Publication number
CN113602932B
CN113602932B CN202111149102.6A CN202111149102A CN113602932B CN 113602932 B CN113602932 B CN 113602932B CN 202111149102 A CN202111149102 A CN 202111149102A CN 113602932 B CN113602932 B CN 113602932B
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China
Prior art keywords
car
disc
trigger
lifting
roller
Prior art date
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Active
Application number
CN202111149102.6A
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Chinese (zh)
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CN113602932A (en
Inventor
邹家春
姚荣康
丁明星
刘坤
李黎
朱枭
张田生
胡小飞
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Hangzhou Huning Elevator Parts Co Ltd
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Hangzhou Huning Elevator Parts Co Ltd
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Priority to CN202111149102.6A priority Critical patent/CN113602932B/en
Publication of CN113602932A publication Critical patent/CN113602932A/en
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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
    • B66B5/044—Mechanical overspeed governors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
    • 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
    • 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
    • B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

The invention relates to a car monitoring device and an elevator, wherein the car monitoring device comprises a mounting seat, a first roller, a monitoring trigger mechanism, a force increasing mechanism and a lifting mechanism, wherein the first roller, the monitoring trigger mechanism, the force increasing mechanism and the lifting mechanism are arranged on the mounting seat; the first roller is used for being attached to the car guide rail; the monitoring and triggering mechanism is used for monitoring the running state of the lift car through the first roller and triggering the force increasing mechanism and the lifting mechanism when needed; the force increasing mechanism is used for increasing the positive pressure of the first roller and the car guide rail after the monitoring triggering mechanism is triggered; the lifting mechanism is used for providing lifting force to trigger the safety protection device by utilizing the positive pressure of the first roller and the car guide rail after the monitoring trigger mechanism is triggered. The first roller, the monitoring triggering mechanism, the force increasing mechanism and the lifting mechanism are integrated in the mounting seat, so that the operation monitoring and diagnosis of the lift car and the triggering and braking of the emergency protection device are realized, and the elevator car monitoring and braking device is simple in structure, integrated in function and miniaturized.

Description

Car monitoring devices and vertical conveying equipment
Technical Field
The invention belongs to the technical field of safety monitoring, and particularly relates to a car monitoring device and vertical conveying equipment.
Background
The traditional elevator car monitoring detects the moving speed of a car through a speed limiter to realize descending falling and overspeed detection, and the traditional elevator car monitoring is one of safety control components in an elevator safety protection system. When the elevator is overspeed or even falls in the running process, the speed limiter and the safety tongs are in linkage action to stop the car.
Conventional governors are mostly installed in elevator machine rooms and also installed in cars, and for example, patent document WO2011146050a1 discloses a governor assembly installed in a car. However, the existing speed limiter assembly installed on the car still needs the matching of the speed limiting rope or an additionally arranged triggering device to trigger the safety gear, so that the installation stroke is high, and the structure is complex.
In addition, most of speed limiters can only detect the trigger at a preset speed, and the speed limiters can only realize safe trigger through steel wire ropes and matched tensioning devices, so that safety chains are complex and have single functions. From the perspective of solving passenger safety, the car is the most direct that personnel bore, and it is the most direct to install monitoring devices in the car, obtains the most direct elevator running state and realizes safety protection under the fault condition to realize monitoring, diagnosis, maintenance and protection of elevator operation in the true sense.
Disclosure of Invention
Based on the above-mentioned disadvantages and shortcomings of the prior art, it is an object of the present invention to at least solve one or more of the above-mentioned problems of the prior art, in other words, to provide a car monitoring device and a vertical conveying apparatus which satisfy one or more of the above-mentioned needs.
In order to achieve the purpose, the invention adopts the following technical scheme:
a lift car monitoring device comprises a mounting seat, a first roller, a monitoring trigger mechanism, a force increasing mechanism and a lifting mechanism, wherein the first roller, the monitoring trigger mechanism, the force increasing mechanism and the lifting mechanism are arranged on the mounting seat;
the first roller is used for being attached to the car guide rail;
the monitoring and triggering mechanism is used for monitoring the running state of the lift car through the first roller and triggering the force increasing mechanism and the lifting mechanism when needed;
the force increasing mechanism is used for increasing the positive pressure of the first roller and the car guide rail after the monitoring triggering mechanism is triggered;
the lifting mechanism is used for providing lifting force to trigger the safety protection device by utilizing the positive pressure of the first roller and the car guide rail after the monitoring trigger mechanism is triggered.
Preferably, the monitoring trigger mechanism is triggered mechanically and/or electronically.
As a preferred scheme, the monitoring trigger mechanism comprises a linkage disc, a centrifugal block throwing mechanism, a trigger disc, a pawl piece, a lifting plate and a rotating piece;
the linkage disc is arranged on the mounting seat through a first main shaft and is in rotating fit with the first main shaft; one side of the linkage disc is coaxially and fixedly installed with the first roller, and the other side of the linkage disc is provided with a centrifugal throwing block mechanism;
the trigger disc and the lifting plate are respectively and rotatably arranged on the first main shaft;
the trigger disc is provided with a claw; when the rotating speed of the first roller reaches the target rotating speed, a throwing block of the centrifugal throwing block mechanism is clamped with a jaw of the trigger disc so as to link the trigger disc to rotate;
the pawl piece is arranged on the mounting seat through the driven shaft and is in rotating fit with the driven shaft; the mounting seat is provided with two arc-shaped sliding chutes respectively corresponding to two ends of the driven shaft; the driven shaft is parallel to the first main shaft, penetrates through the lifting plate and is in linkage connection;
a reset piece is arranged between the pawl piece and the lifting plate; the rotating piece is hinged with the lifting plate and used for triggering the lifting mechanism;
the trigger disc is provided with a linkage piece which is arranged corresponding to the pawl piece and is used for linking the pawl piece to rotate around the driven shaft;
the outer edge of the linkage disk is provided with a plurality of tooth sockets;
when the trigger disc rotates, the pawls of the linkage pawl pieces rotate to be clamped into tooth grooves of the linkage disc, the trigger disc continues to rotate to link the driven shaft to move along the arc-shaped sliding groove of the mounting seat, and the force increasing mechanism is triggered; and meanwhile, the driven shaft is linked with the lifting plate to rotate around the first main shaft so as to trigger the lifting mechanism through the rotating part.
Preferably, the monitoring and triggering mechanism comprises an electromagnet and a triggering insertion sheet, the electromagnet is installed on the triggering disc, and the electromagnet is used for driving the triggering insertion sheet to be inserted into or separated from the tooth groove of the linkage disc.
Preferably, the monitoring trigger mechanism comprises a magnetic encoder arranged corresponding to the first roller, the magnetic encoder is used for detecting car running information, and the car running information comprises one or more of running speed, position, displacement, acceleration and deceleration and vibration.
As a preferred scheme, the linkage disc comprises a bearing seat, a throwing block fixing disc and a pressing seat which are sequentially distributed along the axial direction of the first main shaft, the bearing seat is arranged outside the first main shaft through a bearing, the first roller and the throwing block fixing disc are respectively arranged at two axial ends of the bearing seat, and the pressing seat is pressed on the bearing seat in a pressing mode to fix the throwing block fixing disc; the throwing block fixing disc is used for mounting a centrifugal throwing block mechanism;
the bearing seat and the pressing seat are provided with outer edges with equal diameters, and the outer edges of the bearing seat and the pressing seat are provided with tooth grooves facing to each other.
Preferably, friction disks are arranged between the two sides of the swinging block fixing disk and the bearing seat and between the two sides of the swinging block fixing disk and the pressing seat respectively.
As a preferred scheme, the centrifugal throwing block mechanism comprises two throwing blocks and an elastic limiting part which are oppositely arranged, and each throwing block is arranged on a throwing block fixing disc through a fixing shaft; the two throwing blocks are connected in a linkage way through a connecting rod; one end of the elastic limiting part is installed on the throwing block fixing disc, and the other end of the elastic limiting part is connected with the throwing end of the throwing block.
Preferably, the elevator car guide rail further comprises a second roller arranged on the mounting seat, and the second roller and the first roller are respectively used for being attached to two sides of the car guide rail.
Preferably, the force increasing mechanism comprises a pull rod, a movable seat, a braking part, an elastic resetting part, a push disc and an elastic assembly, wherein one end of the pull rod is rotatably connected to the driven shaft, and the other end of the pull rod is rotatably connected to the braking part; the movable seat is attached to the mounting seat to move; the movable seat is provided with a braking sliding groove, and the braking part is arranged on the braking sliding groove and moves along the braking sliding groove; one end of the elastic reset piece is arranged on the movable seat, and the other end of the elastic reset piece is connected with the braking piece and used for resetting the braking piece after the braking piece moves to be in friction fit with the car guide rail along the braking sliding groove so as to enable the braking piece to be in clearance fit with the car guide rail;
the second roller is arranged on the mounting seat through a second main shaft, the push disc is coaxially arranged outside the second main shaft and synchronously rotates with the second roller, and the push disc is in clearance fit with the braking part; the movable seat is sleeved outside the second main shaft; the mounting seat is provided with a stroke hole for avoiding the second main shaft to move;
when the braking part moves along the braking sliding groove to be in friction fit with the car guide rail, the braking part pushes the push disc to link the elastic assembly to be in a compressed state, so that the compression amount of the elastic assembly is increased.
As a preferred scheme, two pull rods are provided, correspondingly, two braking parts and two elastic resetting parts are correspondingly arranged, and two braking chutes of the movable seat are symmetrically distributed; the pull rod is provided with an avoidance hole, so that a pull rod linkage brake part is realized in the process of ascending or descending the car.
Preferably, the elastic assembly comprises a spring seat, a push rod, a spring and a spring adjusting plate, the spring seat is sleeved outside the second main shaft, and the spring is sleeved outside the push rod; the push rod extends along the moving direction of the spring seat, one end of the push rod is arranged on the spring seat, and the other end of the push rod penetrates through the spring seat and is movably matched with the spring adjusting plate; the mounting seat is provided with two sliding grooves and an adjusting screw which respectively correspond to two sides of the spring adjusting plate, the spring adjusting plate is connected with the sliding grooves in a sliding mode, and the position of the spring adjusting plate is adjusted through the adjusting screw so as to adjust the compression amount of the spring.
As the preferred scheme, the mounting seat is provided with a limiting screw, and the limiting screw is used for limiting the movable displacement of the movable seat.
Preferably, the mounting seat is provided with a travel switch, and a triggering sheet of the travel switch is in linkage connection with the triggering disc.
Preferably, the lifting mechanism comprises a lifting rotating shaft and a lifting arm arranged on the lifting rotating shaft, and the rotating part is connected with the lifting rotating shaft and used for linking the lifting rotating shaft; the lifting rotating shaft is used for linking a lifting arm to lift and trigger the safety protection device;
the lifting mechanism further comprises a rotating shaft resetting piece arranged on the mounting seat and used for resetting the lifting rotating shaft.
The invention also provides vertical conveying equipment which comprises a car and a car guide rail, wherein the car goes up or down along the car guide rail, and the car is provided with the car monitoring device in any scheme.
Compared with the prior art, the invention has the beneficial effects that:
according to the car monitoring device, the first roller, the monitoring triggering mechanism, the force increasing mechanism and the lifting mechanism are integrated on the mounting seat, so that operation monitoring and diagnosis of a car and triggering and braking of an emergency protection device are realized, and the car monitoring device is simple in structure, integrated in function and miniaturized.
The vertical conveying equipment disclosed by the invention realizes safety monitoring and has higher safety.
Drawings
Fig. 1 is a schematic view of an installation structure of a car monitoring device and a car guide rail according to embodiment 1 of the present invention;
fig. 2 is a front view of a car monitoring device of embodiment 1 of the invention;
FIG. 3 is a cross-sectional view taken along line K-K of FIG. 2;
FIG. 4 is a sectional view taken along the line L-L of FIG. 2;
FIG. 5 is a cross-sectional view of the portion M-M of FIG. 2;
fig. 6 is a rear view of the car monitoring device of embodiment 1 of the invention;
fig. 7 is a schematic structural view of a car monitoring device according to embodiment 1 of the present invention;
fig. 8 is a schematic view of the internal structure of a car monitoring device according to embodiment 1 of the present invention;
fig. 9 is an internal structural view from another perspective of the car monitoring device according to embodiment 1 of the present invention;
FIG. 10 is a schematic structural view of a centrifugal block-throwing mechanism according to embodiment 1 of the present invention;
fig. 11 is a schematic view of a structure at the force amplifier of embodiment 1 of the invention;
fig. 12 is a schematic structural view of another angle of view at the force amplifier of embodiment 1 of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will explain the embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
Example 1:
as shown in fig. 1 to 12, the car monitoring device of this embodiment includes a mounting base, and a first roller 1, a second roller 2, a monitoring trigger mechanism, a force-increasing mechanism, and a lifting mechanism mounted on the mounting base, where the first roller 1 and the second roller 2 are respectively located at two sides of a car guide rail 0, and initially cling to the car guide rail at a certain positive pressure, and rotate by friction in the upward or downward process of the car, so as to implement monitoring of the monitoring trigger mechanism; the monitoring and triggering mechanism is used for monitoring the running state of the lift car through the first roller 1 and triggering the force increasing mechanism and the lifting mechanism when needed; the force increasing mechanism is used for increasing the positive pressure of the first roller and the car guide rail after the monitoring triggering mechanism is triggered; the lifting mechanism is used for providing lifting force to trigger the safety protection device by utilizing the positive pressure of the first roller and the car guide rail after the monitoring trigger mechanism is triggered. The safety protection device is exemplified by a safety gear. The lifting mechanism of the embodiment comprises a lifting rotating shaft 3 and a lifting arm 4 installed at one end of the lifting rotating shaft 3, wherein the lifting arm 4 is used for lifting safety tongs, and safety braking of the car is achieved.
Specifically, the mount pad includes outer frame and the mounting bracket of fixed mounting within outer frame, and outer frame is built by last roof, lower plate, left side board, right side board and medium plate and is formed, and the mounting bracket includes base plate I and installs first support II and the second support III on the base plate.
The monitoring trigger mechanism of the embodiment comprises a linkage disc, a centrifugal block throwing mechanism, a trigger disc 7, a pawl piece 8, a lifting plate 9 and a rotating piece 10, wherein the linkage disc is installed on a base plate I of an installation frame through a first main shaft 11 and is in rotating fit with the first main shaft, and the rear end of the first main shaft 11 penetrates through the base plate of an installation seat and is fixedly installed through a gasket and a nut; the right side of the linkage disk and the first roller 1 are coaxially and fixedly installed, the centrifugal throwing block mechanism is installed on the left side of the linkage disk, and a plurality of tooth grooves 50 are formed in the outer edge of the linkage disk. As shown in fig. 3, the linkage disk includes a bearing seat 51, a swinging block fixing disk 52 and a pressing seat 53 which are sequentially distributed along the axial direction of the first main shaft 11, the bearing seat 51 is sleeved outside the first main shaft 11 through two bearings 12, the swinging block fixing disk 52 and the first roller 1 are respectively installed at the left end and the right end of the bearing seat in the axial direction, and the pressing seat 53 is installed at the left end of the bearing seat 51 in a pressing manner, so that the swinging block fixing disk 52 is fixed. In addition, friction discs 54 are arranged between the left side and the right side of the swinging block fixing disc 52 and the bearing seat 51 and the pressing seat 53 respectively, so that constant lifting force is guaranteed to be provided, and the friction force between the friction discs and the bearing seat 51 and the pressing seat 53 can be adjusted through a split type design structure. The centrifugal flail fixing disc 52 is used for mounting a centrifugal flail mechanism, specifically, as shown in fig. 10, the centrifugal flail mechanism includes two flail blocks 61 and an elastic limiting member 62 which are oppositely arranged, and each flail block is mounted on the flail fixing disc 52 through a fixing shaft 63; the two throwing blocks are connected in a linkage way through a connecting rod 64; one end of the elastic limiting piece 62 is fixedly arranged on the throwing block fixing disc 52, and the other end is connected with the throwing end of the throwing block.
The bearing seat 51 and the pressing seat 53 of the present embodiment have outer edges with equal diameters, and the outer edges of the two have facing tooth grooves, thereby forming the tooth grooves 50.
The trigger disk 7 and the lifting plate 9 of the embodiment are respectively and rotatably installed on the first spindle 11, the lifting plate 9 is located on the rear side of the trigger disk 7, and the trigger disk 7 is located on the rear side of the swinging block. Wherein the trigger plate 7 has a plurality of jaws 70 distributed along its outer edge; when the rotating speed of the first roller 1 reaches the target rotating speed, the throwing block 61 of the centrifugal throwing block mechanism is clamped with the claw 70 of the trigger plate, so that the trigger plate 7 is linked to rotate.
In addition, as shown in fig. 9, one side of the striking plate 7 has a linking cam 71 provided corresponding to the pawl for linking the pawl 8; wherein the axial direction of the trigger disk 7 is parallel to the axial direction of the interlocking cam 71. Specifically, as shown in fig. 11 and 12, the interlocking cam 71 is partially embedded in the pawl 8, the pawl 8 is mounted on the first bracket II of the mounting rack through the driven shaft 13 and is rotationally matched with the driven shaft 13, and the driven shaft 13 is parallel to the axial direction of the interlocking cam 71; the pawl members 8 have pawls 80 on the upper and lower sides of the driven shaft 13, respectively, so that one pawl is caught in the tooth groove 50 of the interlocking plate during upward or downward movement of the car.
The base plate I and the first support II of the mounting bracket of this embodiment have the arc spout A corresponding to the driven shaft both ends respectively, and the tip sliding connection of driven shaft is fixed a position in corresponding arc spout and through nut and gasket combination. Wherein the driven shaft 13 is parallel to the first main shaft 11.
Specifically, as shown in fig. 8, the pulling plate 9 of the present embodiment is an L-shaped structure, and includes a transverse portion and a longitudinal portion extending therefrom, one side of the transverse portion is rotatably mounted on the first main shaft 11 and can rotate around the first main shaft 11, and the other side of the transverse portion is used for the driven shaft 13 to penetrate and be linked, that is, the aperture of the penetrating hole of the pulling plate matches the diameter of the driven shaft, so as to realize linked connection. A torsion spring 14 is arranged between the pawl 8 and the longitudinal part of the lifting plate 9, a spring coil of the torsion spring 14 is sleeved on the driven shaft, and two arms of the torsion spring 14 sequentially abut against the hole wall of the inner hole of the pawl 8 and the hole wall of the inner hole of the longitudinal part of the lifting plate 9 and are used for resetting the pawl. In addition, a connecting column 15 extends from the transverse part of the pulling plate 9 between the first main shaft 11 and the driven shaft 13, the connecting column 15 penetrates through a base plate I of the mounting frame, and the base plate I is provided with an arc-shaped avoiding groove B so as to avoid a moving path of the connecting column when the pulling plate rotates; the free end of the connecting column 15 is hinged with one side of the rotating piece 10, and the other side of the rotating piece 10 is synchronously and rotatably connected with the lifting rotating shaft 3. The cross section of the lifting rotating shaft 3 of the present embodiment is a square structure, and accordingly, the rotating member 10 has a square hole inserted into the lifting rotating shaft 3, thereby achieving synchronous rotation. Wherein, two ends of the lifting rotating shaft 3 are respectively and rotatably arranged on the left side plate and the right side plate of the outer frame I.
The force increasing mechanism comprises two pull rods 16, a movable seat 17, two brake wheels 18, two elastic resetting pieces 19, a push disc 20 and an elastic assembly, wherein the two pull rods 16 are respectively positioned at the upper side and the lower side of the driven shaft 13, the two brake wheels 18 are respectively positioned at the upper side and the lower side of the driven shaft 13, and the bottom end of the pull rod at the upper side and the top end of the pull rod at the lower side are respectively sleeved on the driven shaft so as to rotate around the driven shaft; the two pull rods are provided with avoidance holes 160 extending along the length direction of the pull rods, the avoidance holes of the pull rods on the upper sides are connected with the wheel shafts of the brake wheels on the upper sides in an inserting mode, the avoidance holes of the pull rods on the lower sides are connected with the wheel shafts of the brake wheels on the lower sides in an inserting mode, and only one pull rod is linked with the corresponding brake wheel in the ascending or descending process of the lift car.
Two braked wheels 18 are installed on the movable seat 17, the movable seat 17 is attached to the second support III of the installation seat to move, and the movable seat and the second support form a linear guide rail structure. Specifically, the movable seat 17 has two braking chutes 170 distributed vertically, and the braking wheel 18 is mounted on the braking chutes 170 and moves along the braking chutes; one end of the elastic reset piece is fixedly installed on the second support III of the movable seat, and the other end of the elastic reset piece is connected with a wheel shaft of the brake wheel and used for resetting the brake wheel in a way that the brake wheel moves along the brake sliding groove to be in friction fit with the car guide rail, so that the brake wheel is in clearance fit with the car guide rail, and the brake wheel is reset to the original position.
In the embodiment, the second roller 2 penetrates through the second bracket III through the second main shaft 21 and is installed on the substrate I of the installation seat, the push disc 20 is coaxially installed outside the second main shaft and rotates synchronously with the second roller 2, and the push disc 20 is in clearance fit with the two brake wheels 18 respectively; the movable seat 17 is sleeved outside the second spindle 21 and keeps radial synchronous movement with the second spindle; the second bracket III of the mount and the substrate I have a stroke hole C for avoiding the second spindle 21.
The elastic component of the embodiment includes a spring seat 22, a push rod 23, a spring 24 and a spring adjusting plate 25, wherein the spring seat 22 is sleeved outside the second main shaft 21 and keeps radial synchronous movement with the second main shaft 21; the spring 24 is sleeved outside the push rod 23; the push rod 23 extends along the moving direction of the spring seat 22, one end of the push rod is fixedly arranged on the spring seat 22, and the other end of the push rod penetrates through and is movably matched with the spring adjusting plate 25; the second bracket III of the mounting seat has two sliding grooves D and adjusting screws 26 corresponding to the upper and lower sides of the spring adjusting plate 25, respectively, the spring adjusting plate 25 is slidably connected to the sliding grooves D, and the position of the spring adjusting plate 25 is adjusted by the adjusting screws 26 to adjust the compression amount of the spring 24, thereby adjusting the initial positive pressure between the first roller and the car guide rail. In addition, a limit screw 27 is screwed on the second bracket III of the mounting seat, and the limit screw 27 is used for limiting the movable displacement of the movable seat 17 and adjusting the positive pressure between the first roller and the car guide rail.
The base plate I of the mounting seat of the present embodiment is mounted with a travel switch 28 adjacent to the trigger plate 7, and a trigger piece 29 of the travel switch is linked with the trigger plate 7. In addition, a rotating shaft reset piece 30 is installed on the left side plate of the installation seat and used for lifting and pulling the rotating shaft to reset. Specifically, the rotating shaft resetting piece 30 comprises a torsion spring 30a and a shifting plate 30b, the structure of the torsion spring 30a is the same as that of the shifting plate 30b, a spring ring of the torsion spring is sleeved on a screw, the screw is fixed on a left side plate, two support arms of the torsion spring are respectively inserted into two support arms of the shifting plate, and the shifting plate is sleeved on the lifting rotating shaft and rotates synchronously with the lifting rotating shaft.
The car monitoring devices of this embodiment are installed on the car, and its concrete theory of operation is as follows:
the first roller and the second roller are attached to two sides of the car guide rail, the first roller and the second roller rotate under the friction action with the car guide rail in the normal ascending or descending process of the car, when the car abnormally exceeds the speed, the rotating speed of the first roller reaches the target rotating speed, the centrifugal action of the throwing block is clamped with the claw of the triggering disc, the linkage triggering disc rotates, the triggering disc is linked with the claw piece through the linkage cam to rotate until the claw of the triggering disc is clamped into the tooth space of the linkage disc, the linkage disc and the triggering disc continue to rotate to link the driven shaft to move along the arc-shaped sliding groove of the mounting seat, the driven shaft drives the pull rod to move upwards or downwards, one of the brake wheels is pulled to move along the brake sliding groove to be in friction fit with the car guide rail, the brake wheel abuts against the car guide rail to push the push disc, so that the positive pressure of the second roller is reduced or even separated from the car guide rail, and simultaneously the spring of the elastic linkage assembly is compressed (namely the spring compression amount is increased), thereby increasing the positive pressure of the first roller with the car guide rail; meanwhile, the driven shaft linkage lifting plate rotates around the first main shaft so as to rotate through the linkage lifting rotating shaft of the rotating part, the lifting rotating shaft is linked with the lifting arm to generate lifting action, and the first roller and the car guide rail are used for providing lifting force so as to trigger the safety tongs to realize safety braking.
In addition, the end of the first main shaft 11 in the first roller 1 of the present embodiment is mounted with a magnetic encoding chip 31, and the hub of the first roller is mounted with a magnetic steel 32 corresponding to the magnetic encoding chip; the first spindle 11 is hollow in the axial direction and is used for leading out a cable of the magnetic coding chip 31. The magnetic coding chip 31 and the magnetic steel 32 form a magnetic encoder for detecting car running information, wherein the car running information comprises one or more of running speed, position, displacement, acceleration and deceleration and vibration, and the triggering of the triggering mechanism is monitored when the detection is abnormal.
The triggering plate 7 of the embodiment is provided with an electromagnet 33 and a triggering insertion sheet 34, wherein the electromagnet 33 is used for driving the triggering insertion sheet to be inserted into or separated from a tooth groove of the linkage plate, so that remote triggering and resetting are realized.
The embodiment also provides a vertical conveying device, which comprises a car and a car guide rail, wherein the car moves upwards or downwards along the car guide rail, and the car is provided with the car monitoring device of the embodiment to realize safety protection. Wherein a vertical transport device, such as an elevator or other vertical lift.
Example 2:
the car monitoring device of the present embodiment is different from embodiment 1 in that: only one-way triggering can be realized, the structure is simplified, and the requirements of different applications are met;
in particular, the pawl only needs to retain one pawl, correspondingly, only one pull rod and only one brake wheel.
The car monitoring device of the present embodiment is mounted on the car of the vertical conveyance apparatus of the present embodiment.
Other structures can refer to embodiment 1.
Example 3:
the car monitoring device of the present embodiment is different from embodiment 1 in that:
the brake wheel can be replaced by a brake wedge block or other conventional structures, and only the push disc can be pushed open after the brake wheel is contacted with the car guide rail.
The car monitoring device of the present embodiment is mounted on the car of the vertical conveyance apparatus of the present embodiment.
Other structures can refer to embodiment 1.
Example 4:
the car monitoring device of the present embodiment is different from embodiment 1 in that:
the electromagnet and the triggering insertion piece are omitted, the structure is simplified, and the requirements of different applications are met.
The car monitoring device of the present embodiment is mounted on the car of the vertical conveyance apparatus of the present embodiment.
Other structures can refer to embodiment 1.
Example 5:
the car monitoring device of the present embodiment is different from embodiment 1 in that:
the magnetic coding chip and the magnetic steel are omitted, the structure is simplified, and the requirements of different applications are met.
The car installation monitoring device of the present embodiment is mounted on the car of the vertical conveyance apparatus of the present embodiment.
Other structures can refer to embodiment 1.
Example 6:
the car monitoring device of the present embodiment is different from embodiment 1 in that:
the second roller is omitted, the structure is simplified, and the requirements of different applications are met.
The car installation monitoring device of the present embodiment is mounted on the car of the vertical conveyance apparatus of the present embodiment.
Other structures can refer to embodiment 1.
The foregoing has outlined rather broadly the preferred embodiments and principles of the present invention and it will be appreciated that those skilled in the art may devise variations of the present invention that are within the spirit and scope of the appended claims.

Claims (17)

1. A car monitoring device is characterized by comprising a mounting seat, a first roller, a monitoring trigger mechanism, a force increasing mechanism and a lifting mechanism, wherein the first roller, the monitoring trigger mechanism, the force increasing mechanism and the lifting mechanism are arranged on the mounting seat;
the first roller is used for being attached to the car guide rail;
the monitoring and triggering mechanism is used for monitoring the running state of the lift car through the first roller and triggering the force increasing mechanism and the lifting mechanism when needed;
the force increasing mechanism is used for increasing the positive pressure of the first roller and the car guide rail after the monitoring triggering mechanism is triggered;
the lifting mechanism is used for providing lifting force to trigger the safety protection device by utilizing the positive pressure of the first roller and the car guide rail after the monitoring trigger mechanism is triggered.
2. A car monitoring device as claimed in claim 1 wherein the monitoring trigger mechanism is mechanically triggered.
3. A car monitoring device as claimed in claim 2, wherein the monitoring triggering mechanism comprises a linkage disc, a centrifugal throw block mechanism, a triggering disc, a pawl member, a lifting plate and a rotating member;
the linkage disc is arranged on the mounting seat through a first main shaft and is in rotating fit with the first main shaft; one side of the linkage disc is coaxially and fixedly installed with the first roller, and the other side of the linkage disc is provided with a centrifugal throwing block mechanism;
the trigger disc and the lifting plate are respectively and rotatably arranged on the first main shaft;
the trigger disc is provided with a claw; when the rotating speed of the first roller reaches the target rotating speed, a throwing block of the centrifugal throwing block mechanism is clamped with a jaw of the trigger disc so as to link the trigger disc to rotate;
the pawl piece is arranged on the mounting seat through the driven shaft and is in rotating fit with the driven shaft; the mounting seat is provided with two arc-shaped sliding chutes respectively corresponding to two ends of the driven shaft; the driven shaft is parallel to the first main shaft, penetrates through the lifting plate and is in linkage connection;
a reset piece is arranged between the pawl piece and the lifting plate; the rotating piece is hinged with the lifting plate and used for triggering the lifting mechanism;
the trigger disc is provided with a linkage piece which is arranged corresponding to the pawl piece and is used for linking the pawl piece to rotate around the driven shaft;
the outer edge of the linkage disk is provided with a plurality of tooth sockets;
when the trigger disc rotates, the pawls of the linkage pawl pieces rotate to be clamped into tooth grooves of the linkage disc, the trigger disc continues to rotate to link the driven shaft to move along the arc-shaped sliding groove of the mounting seat, and the force increasing mechanism is triggered; and meanwhile, the driven shaft is linked with the lifting plate to rotate around the first main shaft so as to trigger the lifting mechanism through the rotating part.
4. A car monitoring device as claimed in claim 3, wherein the monitoring triggering means is also electronically triggered; the monitoring trigger mechanism comprises an electromagnet and a trigger inserting sheet, the electromagnet is installed on the trigger disc, and the electromagnet is used for driving the trigger inserting sheet to be inserted into or separated from a tooth groove of the linkage disc.
5. A car monitoring device as claimed in claim 3 or 4, wherein the monitoring trigger mechanism comprises a magnetic encoder arranged in correspondence with the first roller for detecting car movement information including one or more of movement speed, position, displacement, acceleration and deceleration, vibration.
6. The car monitoring device as claimed in claim 3 or 4, wherein the linkage disc comprises a bearing seat, a throwing block fixing disc and a pressing seat which are sequentially distributed along the axial direction of the first main shaft, the bearing seat is mounted outside the first main shaft through a bearing, the first roller and the throwing block fixing disc are respectively mounted at two axial ends of the bearing seat, and the pressing seat is pressed on the bearing seat to fix the throwing block fixing disc; the throwing block fixing disc is used for mounting a centrifugal throwing block mechanism;
the bearing seat and the pressing seat are provided with outer edges with equal diameters, and the outer edges of the bearing seat and the pressing seat are provided with tooth grooves facing to each other.
7. A car monitoring device as claimed in claim 6, wherein friction discs are provided between the bearing blocks and the pressure blocks on both sides of the flail block fixing disc.
8. The car monitoring device of claim 7, wherein the centrifugal flail mechanism comprises two flail blocks and an elastic limiting member, wherein the two flail blocks are oppositely arranged, and each flail block is mounted on a flail block fixing disc through a fixing shaft; the two throwing blocks are connected in a linkage way through a connecting rod; one end of the elastic limiting part is installed on the throwing block fixing disc, and the other end of the elastic limiting part is connected with the throwing end of the throwing block.
9. The car monitoring device of claim 3, further comprising a second roller disposed on the mounting base, wherein the second roller and the first roller are respectively configured to be attached to two sides of the car guide rail.
10. A car monitoring device as claimed in claim 9, wherein the force increasing means comprises a pull rod, a movable seat, a braking member, an elastic restoring member, a push plate and an elastic member, one end of the pull rod is rotatably connected to the driven shaft, and the other end of the pull rod is rotatably connected to the braking member; the movable seat is attached to the mounting seat to move; the movable seat is provided with a braking sliding groove, and the braking part is arranged on the braking sliding groove and moves along the braking sliding groove; one end of the elastic reset piece is arranged on the movable seat, and the other end of the elastic reset piece is connected with the braking piece and used for resetting the braking piece after the braking piece moves to be in friction fit with the car guide rail along the braking sliding groove so as to enable the braking piece to be in clearance fit with the car guide rail;
the second roller is arranged on the mounting seat through a second main shaft, the push disc is coaxially arranged outside the second main shaft and synchronously rotates with the second roller, and the push disc is in clearance fit with the braking part; the movable seat is sleeved outside the second main shaft; the mounting seat is provided with a stroke hole for avoiding the second main shaft to move;
when the braking part moves along the braking sliding groove to be in friction fit with the car guide rail, the braking part pushes the push disc to link the elastic assembly to be in a compressed state.
11. A car monitoring device as claimed in claim 10, wherein there are two of said tie rods, and correspondingly, there are two of said braking members and said elastic restoring member, respectively, and there are two and symmetrically distributed braking chutes of said movable seat; the pull rod is provided with an avoidance hole, so that a pull rod linkage brake part is realized in the process of ascending or descending the car.
12. The car monitoring device of claim 10 or 11, wherein the elastic assembly comprises a spring seat, a push rod, a spring and a spring adjusting plate, the spring seat is sleeved outside the second main shaft, and the spring is sleeved outside the push rod; the push rod extends along the moving direction of the spring seat, one end of the push rod is arranged on the spring seat, and the other end of the push rod penetrates through the spring seat and is movably matched with the spring adjusting plate; the mounting seat is provided with two sliding grooves and an adjusting screw which respectively correspond to two sides of the spring adjusting plate, the spring adjusting plate is connected with the sliding grooves in a sliding mode, and the position of the spring adjusting plate is adjusted through the adjusting screw so as to adjust the compression amount of the spring.
13. A car monitoring device as claimed in claim 10 or 11, wherein the mounting base is provided with a limit screw for limiting the movement displacement of the movable base.
14. A car monitoring device as claimed in claim 3, wherein the mounting base is provided with a travel switch, and a trigger plate of the travel switch is linked with the trigger plate.
15. The car monitoring device as claimed in claim 3, wherein the lifting mechanism comprises a lifting rotating shaft and a lifting arm arranged on the lifting rotating shaft, and the rotating member is connected with the lifting rotating shaft and used for linking the lifting rotating shaft; the lifting rotating shaft is used for linking a lifting arm to lift and trigger the safety protection device;
the lifting mechanism further comprises a rotating shaft resetting piece arranged on the mounting seat and used for resetting the lifting rotating shaft.
16. A car monitoring device as claimed in claim 1, wherein the monitoring triggering means is electronically triggered.
17. A vertical conveyance apparatus comprising a car and car guide rails along which the car travels up or down, wherein the car is mounted with a car monitoring device as claimed in any one of claims 1 to 16.
CN202111149102.6A 2021-09-29 2021-09-29 Car monitoring devices and vertical conveying equipment Active CN113602932B (en)

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Application Number Priority Date Filing Date Title
CN202111149102.6A CN113602932B (en) 2021-09-29 2021-09-29 Car monitoring devices and vertical conveying equipment

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CN113602932B true CN113602932B (en) 2022-01-11

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Publication number Priority date Publication date Assignee Title
CN2873723Y (en) * 2006-01-25 2007-02-28 周友仁 Integrated directly lift car
CN102897633B (en) * 2012-10-15 2015-07-01 上海大学 Elevator rolling guide shoe with brake function
DE102014017357A1 (en) * 2014-11-25 2016-05-25 Thyssenkrupp Ag elevator system
CN107777502B (en) * 2016-08-29 2023-04-18 杭州沪宁电梯部件股份有限公司 Steady-state low-speed limiter
CN106744157A (en) * 2017-03-31 2017-05-31 江苏利德尔塑化科技股份有限公司 A kind of elevator roller guide shoe of overall plastic property low noise
CN206985438U (en) * 2017-09-26 2018-02-09 宁波奥德普电梯部件有限公司 A kind of non-resilient elevator roller guide shoe
CN111824890B (en) * 2019-04-15 2024-05-24 杭州沪宁电梯部件股份有限公司 Emergency protection system for elevator car safety
CN111824895B (en) * 2019-04-15 2024-06-04 杭州沪宁电梯部件股份有限公司 Unexpected protection device that removes of car
CN112897276B (en) * 2021-04-02 2023-01-17 中建三局集团有限公司 Safety anti-falling device for elevator
CN113148801A (en) * 2021-04-09 2021-07-23 上海大学 Disc type elevator active braking guide shoe

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