CN108622760B - Elevator speed limiter - Google Patents
Elevator speed limiter Download PDFInfo
- Publication number
- CN108622760B CN108622760B CN201810580521.7A CN201810580521A CN108622760B CN 108622760 B CN108622760 B CN 108622760B CN 201810580521 A CN201810580521 A CN 201810580521A CN 108622760 B CN108622760 B CN 108622760B
- Authority
- CN
- China
- Prior art keywords
- rotating
- block
- clamping block
- shaft
- rotating wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/26—Positively-acting devices, e.g. latches, knives
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The application discloses elevator overspeed governor, including centrifugal action mechanism and with centrifugal action mechanism complex first rotation wheel, first rotation wheel is provided with centrifugal action mechanism complex first fitting surface, first fitting surface sets up on centrifugal action mechanism's centrifugal motion route, first rotation wheel's lateral surface is provided with at least one first dog, still include mechanical triggering mechanism, mechanical triggering mechanism is provided with first fixing base, first fixing base fixedly connected with first clamp splice, first fixing base rotates and is connected with the second clamp splice, first clamp splice sets up with the second clamp splice relatively, one side that the second clamp splice faced first dog is provided with stretches out the end, stretch out the end setting on first dog rotation route, avoid centrifugal action structure direct action mechanical triggering mechanism, mechanical triggering mechanism direct action on mechanical triggering mechanism has effectively been protected, the problem that mechanical triggering mechanism is easy to damage can be solved.
Description
Technical Field
The present disclosure relates generally to the field of elevator manufacturing, and more particularly to the field of elevator safety components, and more particularly to an elevator speed limiter.
Background
The elevator speed limiter is one of four safety components of the elevator. The elevator safety device can be triggered to act in time under the condition of unexpected overspeed, so that the elevator is stopped, and the life and property safety of passengers is guaranteed. The speed limiter of the high-speed elevator is a difficult point in design, the speed limiter of the existing high-speed elevator has no great difference from a common elevator speed limiter, and when the speed limiter acts, the centrifugal action mechanism directly acts on the mechanical triggering mechanism, and the mechanical triggering mechanism is easily damaged due to the too high speed.
Disclosure of Invention
In view of the foregoing drawbacks or shortcomings of the prior art, it is desirable to provide an elevator governor that is reliable in construction and not prone to damage by a mechanical trigger mechanism.
In a first aspect, the elevator speed limiter comprises a centrifugal action mechanism and a first rotating wheel matched with the centrifugal action mechanism, wherein the first rotating wheel is provided with a first matching surface matched with the centrifugal action mechanism, the first matching surface is arranged on a centrifugal movement path of the centrifugal action mechanism, the outer side surface of the first rotating wheel is provided with at least one first stop block,
still include mechanical triggering mechanism, mechanical triggering mechanism is provided with first fixing base, and first fixing base fixedly connected with first clamp splice, first fixing base rotate and are connected with the second clamp splice, and first clamp splice sets up with the second clamp splice is relative, and one side that the second clamp splice faced first dog is provided with the end that stretches out, stretches out the end setting on first dog rotation path.
According to the technical scheme provided by the embodiment of the application, the first rotating wheel is arranged between the centrifugal action mechanism and the mechanical triggering mechanism to indirectly drive, so that the centrifugal action mechanism is prevented from directly acting on the mechanical triggering mechanism, the mechanical triggering mechanism is effectively protected, and the problem that the centrifugal action mechanism directly acts on the mechanical triggering mechanism and the mechanical triggering mechanism is easy to damage can be solved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
fig. 1 is a schematic view of the structure of an elevator governor of an embodiment of the present invention;
fig. 2 is a schematic view of the mechanical triggering mechanism of the elevator governor of an embodiment of the invention;
fig. 3 is a schematic view of the mechanical triggering mechanism of the elevator governor of an embodiment of the invention;
fig. 4 is a schematic structural view of an electrical trigger mechanism of an elevator governor of an embodiment of the invention;
fig. 5 is a schematic view of the structure of the electrical triggering mechanism of the elevator governor of an embodiment of the present invention.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, the elevator speed limiter of the present invention comprises a centrifugal action mechanism 10 and a first rotating wheel 20 matched with the centrifugal action mechanism 10, wherein the first rotating wheel 20 is provided with a first matching surface matched with the centrifugal action mechanism 10, the first matching surface is arranged on a centrifugal movement path of the centrifugal action mechanism 10, the outer side surface of the first rotating wheel 20 is provided with at least one first stop block 22,
the mechanical triggering mechanism is provided with a first fixing seat, the first fixing seat is fixedly connected with a first clamping block 32, the first fixing seat is rotationally connected with a second clamping block 33, the first clamping block 32 and the second clamping block 33 are oppositely arranged, one side of the second clamping block 33, which faces the first stop block 22, is provided with an extending end 36, and the extending end 36 is arranged on the rotating path of the first stop block 22.
In the embodiment of the invention, the centrifugal action mechanism can be, but is not limited to, a three-bar mechanism, the three-bar mechanism is connected with the second rotating wheel through a tension spring, when the rotating speed of the second rotating wheel is faster, the distance between the throwing block of the centrifugal action mechanism and the rotating center of the second rotating wheel is longer, and when the rotating speed of the second rotating wheel reaches a limiting speed, the throwing block triggers the mechanical triggering mechanism to brake the elevator.
The first driving wheel can not rotate when the high-speed elevator normally operates, when the speed of the high-speed elevator exceeds the speed limit of the speed limiter, the centrifugal action mechanism is subjected to centrifugal force increase, the throwing block moves in the direction away from the rotation center, the first rotating wheel is driven to rotate along with the centrifugal action mechanism, specifically, the first driving wheel can be driven to rotate by arranging a stop block on the matching surface or through friction, the first stop block on the first driving wheel pushes the extending end to move, the extending end drives the second clamping block to rotate, at the moment, the distance between the second clamping block and the first clamping block is reduced, the lifting rope of the safety tongs passes through the gap between the first clamping block and the second clamping block, the second clamping block and the first clamping block clamp the lifting rope of the safety tongs, and the safety tongs are triggered to act, and the elevator is braked. When the elevator exceeds the speed limit of the speed limiter, the centrifugal action mechanism directly acts on the mechanical triggering mechanism, and the mechanical triggering mechanism is damaged due to the fact that the speed is too high, so that the service life of the mechanical triggering mechanism is prolonged.
With reference to fig. 2 and 3, further, the first fixing base is provided with two opposite fixing plates 34, the first clamping block 32 and the second clamping block 33 are both arranged between the two fixing plates 34, the first clamping block 32 is fixed on one side of the two fixing plates 34 close to the first stop block 22, the second clamping block 33 is rotatably connected on one side of the two fixing plates 34 far away from the first stop block 22,
the second stopper 37 is provided on the side of the second clamping block 33 facing away from the fixing plate 34, the second stopper 37 is provided above the two fixing plates 34, the second stopper 37 is stopped on the side of the fixing plate 34 facing the second stopper 37, and the protruding end 36 is provided on the side of the second stopper 37 facing the first stopper 22.
In the embodiment of the invention, the two opposite fixing plates can limit the rotation of the second clamping block between the two fixing plates, so that the reliability of the speed limiter is improved. Through being provided with the second dog in one side that the second clamp splice was kept away from the fixed plate, when first rotation wheel drove the second clamp splice and rotated, the fixed plate can stop second dog motion, and then stop second clamp splice rotates, make second clamp splice and first clamp splice can press from both sides tight safety tongs's pulling mechanism, make safety tongs action, the second dog plays the spacing effect of backstop, when fixed plate backstop second dog motion, stretch out the end and break away from first dog, that is to say, first rotation wheel can continue to rotate, simultaneously, first dog can not touch the end of stretching out again in the rotation process, avoid first dog to strike the end of stretching out and cause first dog or stretch out the damage of end, the security and the reliability of overspeed governor have been improved.
Further, at least a first rotating block 41 and a second rotating block 51 are rotatably connected between the two fixing plates 34,
the first rotating block 41 is provided with a first through hole, a first fixed shaft 43 is sleeved in the first through hole, the first fixed shaft 43 is rotationally connected with the second clamping block 33, a first pressure spring 44 is sleeved outside the first fixed shaft 43, the first pressure spring 44 is arranged between the first rotating block 41 and the second clamping block 33, the first fixed shaft 43 extends out of the surface of the first rotating block 41, which is opposite to the side of the second clamping block 33, the first fixed shaft 43 is detachably and fixedly connected with a first clamping block 45, the first rotating block 41 is arranged between the first clamping block 45 and the first pressure spring 44, the length of the first clamping block 45 is larger than the diameter of the first through hole,
the second rotating block 51 is provided with a second through hole, a second fixed shaft is sleeved in the second through hole and is connected with the second clamping block 33 in a rotating mode, a second pressure spring is sleeved outside the second fixed shaft and is arranged between the second rotating block 51 and the second clamping block 33, the second fixed shaft extends out of the surface, facing away from the second clamping block 33, of the second rotating block 51, a second clamping block is detachably and fixedly connected with the second fixed shaft, the second rotating block 51 is arranged between the second clamping block and the second pressure spring, and the length of the second clamping block is larger than the diameter of the second through hole.
In the embodiment of the invention, the first compression spring is sleeved outside the first fixed shaft, the first fixed shaft stretches out of the surface of the first rotating block and is detachably and fixedly connected with the first clamping block, the second compression spring is sleeved outside the second fixed shaft, the second fixed shaft stretches out of the surface of the second rotating block and is detachably and fixedly connected with the second clamping block, the first clamping block triggers the stretching end to drive the second clamping block to rotate, the gap between the second clamping block and the first clamping block is gradually reduced, of course, the gap between the first clamping block and the second clamping block is slightly smaller than the diameter of the lifting rope of the safety tongs, when the first clamping block and the second clamping block clamp the lifting rope, the second compression spring is in a compressed state, the first clamping block is separated from the surface of the first rotating block, and the second clamping block is separated from the surface of the second rotating block, and at the moment, the second clamping block can tightly push the lifting rope under the elastic action of the second compression spring, so that the first clamping block and the second clamping block tightly clamp the lifting rope, and the safety tongs are enabled to act, and the reliability and the sensitivity of the speed limiter are improved.
The first fixed axle stretches out the surface of first turning block one side of second clamp splice dorsad, and first fixed axle detachably fixedly connected with first fixture block, first turning block set up between first fixture block and first pressure spring, and the length of first fixture block is greater than the diameter of first through-hole, can avoid first fixed axle to break away from first through-hole. The second fixed axle stretches out the second and rotates the surface that piece was kept away from second clamp splice one side, and second fixed axle detachably fixedly connected with second fixture block, second rotate the piece setting between second fixture block and second pressure spring, and the length of second fixture block is greater than the diameter of second through-hole, can avoid the second fixed axle to break away from first through-hole. The fixed plate, the first fixed shaft, the second fixed shaft and the second clamping block form a four-bar mechanism, the second clamping block is driven to rotate after the extending end is impacted by the first stop block, and the first pressure spring and the second pressure spring are guaranteed to provide larger elastic force for the second clamping block, so that the second clamping block tightly presses the lifting rope, the first clamping block and the second clamping block clamp the lifting rope to drive the safety tongs to act, the elevator is braked, and the safety of the elevator is guaranteed.
Further, a first semi-cylindrical groove 35 is formed in the side, facing the second clamping block 33, of the first clamping block 32 in the vertical direction, a second semi-cylindrical groove 38 is formed in the position, opposite to the first semi-cylindrical groove 35, of the second clamping block 33 in the vertical direction, and the first semi-cylindrical groove 35 and the second semi-cylindrical groove 38 enclose a cylindrical cavity with two open ends.
In the embodiment of the invention, the lifting rope slides up and down in the first semi-cylindrical groove, when the elevator exceeds the speed limit of the speed limiter, the second clamping block rotates, the gap between the second clamping block and the first clamping block is reduced, the second semi-cylindrical groove rotates towards the first semi-cylindrical groove, the second semi-cylindrical groove and the first semi-cylindrical groove are enclosed to form a cylindrical cavity, the cylindrical cavity clamps the lifting rope, the lifting rope is prevented from being separated from the cylindrical cavity, on one hand, the contact area of the first clamping block, the second clamping block and the lifting rope is increased by the cylindrical cavity, and the friction force of the first clamping block, the second clamping block and the lifting rope is increased, so that the lifting rope can be rapidly clamped after the second clamping block acts, and the safety tongs are driven to act to brake the elevator, and on the other hand, the lifting rope can be prevented from being separated from the range of the cylindrical cavity, and the limiting effect is achieved.
Further, the centrifugal force device comprises a second rotating wheel 60 which rotates coaxially with the first rotating wheel 20, a certain gap is arranged between the first rotating wheel 20 and the second rotating wheel 60, a centrifugal action mechanism 10 is fixed on one side of the second rotating wheel 60 facing the first rotating wheel 20, a first cavity for accommodating rotation of the centrifugal action mechanism 10 is arranged on one side of the first rotating wheel 20 facing the second rotating wheel 60, and a first matching surface is arranged as an inner wall of the first rotating wheel 20.
In the embodiment of the invention, the second rotating wheel is connected with the steel wire rope or the synchronous belt, when the elevator moves up and down, the second rotating wheel rotates in a following way, the centrifugal action mechanism is fixed on the second rotating wheel, the rotating speed of the second rotating wheel can be monitored in real time, namely the moving speed of the elevator is monitored, when the moving speed of the elevator exceeds the speed limit, the centrifugal action mechanism can act for triggering the mechanical triggering mechanism and the electric triggering mechanism to act at the first time, the elevator is braked, and the electric connection of the elevator is cut off, so that the safety of the elevator is ensured.
Referring to fig. 4 and 5, further, the centrifugal action mechanism comprises a first rotating shaft, the first rotating shaft is sleeved at the rotating center of the second rotating wheel 60, the second rotating wheel 60 rotates around the first rotating shaft, a semi-closed second cavity 71 is arranged at one end of the first rotating shaft far away from the first rotating wheel 20, a push rod 74 is slidably connected in the second cavity 71, the push rod 74 is used for triggering the electric switch 11, the second rotating wheel 60 is rotatably connected with a connecting rod 75, a throwing block of the centrifugal action mechanism 10 is in contact with the connecting rod 75, and one side of the push rod 74 far away from the opening end of the second cavity 71 is in contact with the connecting rod 75.
In an embodiment of the invention, the slinger of the centrifugal action mechanism does not contact the connecting rod during normal running of the elevator, or the slinger contacts the connecting rod, and the ejector block is not ejected out of the open end of the second cavity by the connecting rod. When the elevator exceeds the speed limit of the speed limiter, the throwing block of the centrifugal action mechanism props against the connecting rod, the connecting rod drives the ejector rod to move towards the opening end of the second cavity, and the ejector rod is pushed out of the opening end of the second cavity by the connecting rod, so that an electrical switch is triggered, an electrical system of the elevator is cut off, other problems are avoided, and the safety of the elevator is guaranteed. Through setting up the second cavity in first axis of rotation, sliding connection ejector pin in the second cavity, rethread ejector pin triggers electrical switch for overspeed governor overall structure is compacter, has reduced the volume of overspeed governor.
Further, the ejector pin 74 is sleeved with the first spring 76, the first baffle 72 is arranged at the opening end of the second cavity 71, the first baffle 72 is provided with the third through hole 73, the diameter of the third through hole 73 is smaller than the outer diameter of the first spring 76, one end of the ejector pin 74, far away from the connecting rod 75, extends out of the second cavity 71 from the third through hole 73, the second baffle 77 is arranged at one end of the ejector pin 74, near the connecting rod 75, the diameter of the second baffle 77 is larger than the inner diameter of the first spring 76, and the first spring 76 is arranged between the first baffle 72 and the second baffle 77.
In the embodiment of the invention, when the connecting rod pushes the ejector rod, the ejector rod extends out of the opening end of the second cavity from the third through hole, and the first baffle can support the ejector rod and also play a role of guiding. After the elevator exceeds the limiting speed of the speed limiter, the ejector rod is ejected out of the opening end of the second cavity after the centrifugal action mechanism acts, at the moment, the first spring is compressed, and after the elevator is braked, the first spring provides elasticity for the ejector rod, so that the ejector rod moves towards the inside of the second cavity, the ejector rod and the connecting rod are reset, an external structure is not required to be removed to reset the ejector rod and the connecting piece, and the workload of workers in the elevator installation test process and the maintenance process is reduced.
Further, the first rotating wheel 20 and the second rotating wheel 60 are both fixed on the second fixing seat 80, a second rotating shaft 81 is fixedly connected to the second fixing seat 80, a shifting plate 82 is rotatably connected to the second rotating shaft 81, one end of the shifting plate 82 is arranged on a moving path of the ejector rod 74, the other end of the shifting plate is in contact with a triggering mechanism of the electric switch 11, the triggering mechanism of the electric switch 11 and the ejector rod 74 are arranged on the same side of the shifting plate 82, and the second rotating shaft 81 is arranged between the triggering mechanism and the ejector rod 74.
In the embodiment of the invention, when the speed of the elevator exceeds the speed limited by the speed limiter, the throwing block of the centrifugal action mechanism drives the connecting rod to rotate, the connecting rod pushes the ejector rod to slide in the second cavity, the ejector rod pushes the shifting plate to rotate around the second rotating shaft, the shifting plate pushes the trigger mechanism of the electric switch to trigger the electric switch to act, the electric system of the elevator is cut off, and the elevator is simple and reliable in structure and ensures the operation safety of the elevator.
Further, one side of the shifting plate 82 facing the triggering mechanism is fixedly connected with one end of a second spring 83, the other end of the second spring 83 is movably and fixedly connected with the second fixing seat 80 through a screw 84, and the second rotating shaft 81 is arranged between the second spring 83 and the ejector rod 74.
In the embodiment of the invention, the second spring is fixed on one side of the shifting plate, which is contacted with the trigger mechanism of the electric switch, and is in threaded connection with the second fixing seat through the screw rod, so that the tensioning degree of the second spring can be changed, when the screw rod is far away from the shifting plate, the second spring is stretched, the pulling force provided by the second spring for the shifting plate is increased, when the push rod pushes the shifting plate to rotate, the shifting plate can press the trigger mechanism of the electric switch more rapidly, the rotating speed of the shifting plate is accelerated, the tensioning degree of the second spring is adjusted through adjusting the distance between the screw rod and the shifting plate, and the speed of the shifting plate for pressing the trigger mechanism of the electric switch is adjusted, so that the action speed of the electric system is adjusted, the structure is simple and reliable, and different requirements can be met.
Further, a fixed block 61 is fixed on one side of the second rotating wheel 60 facing the first rotating wheel 20, the fixed block 61 is arranged in the first cavity, a friction pad 62 is fixed on one side of the fixed block 61 facing the first matching surface, a certain gap is arranged between the friction pad 62 and the first matching surface,
the centrifugal action mechanism 10 is fixedly connected with a shaft 63, a third fixing seat 64 is clamped between the shaft 63 and the friction pad 62, the third fixing seat 64 is provided with an extending part and a stopping part, the extending part is arranged between the shaft 63 and the friction pad 62, the length of the stopping part is larger than the distance between the shaft and the friction pad 62, the stopping part is arranged on the movement path of the shaft 63, the third fixing seat 64 is rotationally connected with a friction wheel 67 in rolling fit with the friction pad 62, the rolling fit surface of the friction pad 62 and the friction wheel 67 is a second fit surface 68,
the distance between the side of the second mating surface 68 close to the shaft 63 and the first mating surface is larger than the diameter of the friction wheel 67, and the distance between the side of the second mating surface 68 away from the shaft 63 and the first mating surface is smaller than the diameter of the friction wheel 67.
In the embodiment of the invention, when the elevator exceeds the limit speed of the speed limiter, the throwing block of the centrifugal action mechanism drives the shaft to rotate, the shaft is clamped into the stop part to drive the second fixing seat to move, the second fixing seat drives the friction wheel to roll on the friction pad, at the moment, the friction wheel rolls between the first matching surface and the second matching surface, and when the rotation speed of the second rotation wheel is faster, the friction wheel rolls towards a place with smaller distance between the second matching surface and the first matching surface until the friction wheel contacts with the first matching surface, and the friction force between the friction wheel and the first matching surface drives the first rotation wheel to rotate together with the second rotation wheel, so that the first stop block on the first rotation wheel drives the extending end to trigger the mechanical triggering mechanism to act, and the elevator is braked. The friction wheel is used for driving the first rotating wheel to rotate, so that the mechanical triggering mechanism is prevented from being triggered by the direct contact of the throwing block and the mechanical triggering mechanism, and the service lives of the mechanical triggering mechanism and the centrifugal action mechanism are prolonged. When friction wheel wearing and tearing are comparatively serious, can only change the third fixing base can, easy operation has reduced maintenance cost and degree of difficulty.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (8)
1. The elevator speed limiter is characterized by comprising a centrifugal action mechanism, a first rotating wheel matched with the centrifugal action mechanism, a second rotating wheel coaxially rotating with the first rotating wheel and a first rotating shaft, wherein the first rotating wheel is provided with a first matching surface matched with the centrifugal action mechanism, the first matching surface is arranged on a centrifugal movement path of the centrifugal action mechanism, and the outer side surface of the first rotating wheel is provided with at least one first stop block;
a certain gap is arranged between the first rotating wheel and the second rotating wheel, the centrifugal action mechanism is fixed on one side of the second rotating wheel facing the first rotating wheel, a first cavity for accommodating rotation of the centrifugal action mechanism is arranged on one side of the first rotating wheel facing the second rotating wheel, and the first matching surface is arranged as the inner wall of the first rotating wheel;
a fixed block is fixed on one side of the second rotating wheel facing the first rotating wheel, the fixed block is arranged in the first cavity, a friction pad is fixed on one side of the fixed block facing the first matching surface, and a certain gap is arranged between the friction pad and the first matching surface;
the first rotating shaft is sleeved at the rotating center of the second rotating wheel, the second rotating wheel rotates around the first rotating shaft, a semi-closed second cavity is formed in one end, far away from the first rotating wheel, of the first rotating shaft, a push rod is connected in a sliding mode in the second cavity and used for triggering an electric switch, the second rotating wheel is rotationally connected with a connecting rod, a throwing block of the centrifugal action mechanism is in contact with the connecting rod, and one side, far away from the opening end of the second cavity, of the push rod is in contact with the connecting rod;
still include mechanical triggering mechanism, mechanical triggering mechanism is provided with first fixing base, first fixing base fixedly connected with first clamp splice, first fixing base rotates and is connected with the second clamp splice, first clamp splice with the second clamp splice sets up relatively, the second clamp splice towards one side of first dog is provided with stretches out the end, stretch out the end setting and be in on the first dog rotation path.
2. The elevator speed limiter according to claim 1, wherein the first fixing base is provided with two opposite fixing plates, the first clamping block and the second clamping block are both arranged between the two fixing plates, the first clamping block is fixed on one side of the two fixing plates close to the first stop block, the second clamping block is connected on one side of the two fixing plates far away from the first stop block in a rotating way,
the second check block is arranged on one side, facing away from the fixed plate, of the second clamping block, the second check blocks are arranged above the two fixed plates, one side, facing the second check block, of the fixed plate is stopped by the second check block, and one side, facing the first check block, of the second check block is provided with the extending end.
3. The elevator speed limiter according to claim 2, wherein at least a first rotating block and a second rotating block are rotatably connected between the two fixed plates,
the first rotating block is provided with a first through hole, a first fixed shaft is sleeved in the first through hole and is in rotating connection with the second clamping block, a first pressure spring is sleeved outside the first fixed shaft and is arranged between the first rotating block and the second clamping block, the first fixed shaft extends out of the surface of the first rotating block, which is opposite to one side of the second clamping block, a first clamping block is detachably and fixedly connected with the first fixed shaft, the first rotating block is arranged between the first clamping block and the first pressure spring, the length of the first clamping block is larger than the diameter of the first through hole,
the second rotating block is provided with a second through hole, a second fixed shaft is sleeved in the second through hole, the second fixed shaft is connected with the second clamping block in a rotating mode, a second pressure spring is sleeved outside the second fixed shaft, the second pressure spring is arranged between the second rotating block and the second clamping block, the second fixed shaft stretches out of the surface of the second rotating block, which faces away from one side of the second clamping block, a second clamping block is detachably and fixedly connected with the second fixed shaft, the second rotating block is arranged between the second clamping block and the second pressure spring, and the length of the second clamping block is larger than the diameter of the second through hole.
4. The elevator speed limiter according to claim 1, wherein a first semicircular column groove is formed in a side, facing the second clamping block, of the first clamping block in the vertical direction, a second semicircular column groove is formed in a position, opposite to the first semicircular column groove, of the second clamping block in the vertical direction, and the first semicircular column groove and the second semicircular column groove enclose a cylindrical cavity with two open ends.
5. The elevator speed limiter according to any one of claims 1-4, wherein the ejector rod is sleeved with a first spring, the open end of the second cavity is provided with a first baffle, the first baffle is provided with a third through hole, the diameter of the third through hole is smaller than the outer diameter of the first spring, one end of the ejector rod, which is far away from the connecting rod, extends out of the second cavity from the third through hole, the ejector rod is provided with a second baffle near one end of the connecting rod, the diameter of the second baffle is larger than the inner diameter of the first spring, and the first spring is arranged between the first baffle and the second baffle.
6. The elevator speed limiter according to any one of claims 1-4, wherein the first rotating wheel and the second rotating wheel are both fixed on a second fixing seat, a second rotating shaft is fixedly connected to the second fixing seat, the second rotating shaft is rotatably connected with a shifting plate, one end of the shifting plate is arranged on a movement path of the ejector rod, the other end of the shifting plate is in contact with a triggering mechanism of the electrical switch, the triggering mechanism of the electrical switch and the ejector rod are arranged on the same side of the shifting plate, and the second rotating shaft is arranged between the triggering mechanism and the ejector rod.
7. The elevator speed limiter according to claim 6, wherein one side of the pulling plate facing the triggering mechanism is fixedly connected with one end of a second spring, the other end of the second spring is movably and fixedly connected with the second fixing seat through a screw, and the second rotating shaft is arranged between the second spring and the ejector rod.
8. The elevator speed limiter according to any one of claims 1 to 4, wherein the centrifugal action mechanism is fixedly connected with a shaft, a third fixing seat is clamped between the shaft and the friction pad, the third fixing seat is provided with an extending part and a stopping part, the extending part is arranged between the shaft and the friction pad, the length of the stopping part is larger than the distance between the shaft and the friction pad, the stopping part is arranged on the movement path of the shaft, the third fixing seat is rotatably connected with a friction wheel in rolling fit with the friction pad, the rolling fit surface of the friction pad and the friction wheel is a second fit surface,
the distance between the side, close to the shaft, of the second matching surface and the first matching surface is larger than the diameter of the friction wheel, and the distance between the side, away from the shaft, of the second matching surface and the first matching surface is smaller than the diameter of the friction wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810580521.7A CN108622760B (en) | 2018-06-07 | 2018-06-07 | Elevator speed limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810580521.7A CN108622760B (en) | 2018-06-07 | 2018-06-07 | Elevator speed limiter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108622760A CN108622760A (en) | 2018-10-09 |
| CN108622760B true CN108622760B (en) | 2023-07-14 |
Family
ID=63691160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810580521.7A Active CN108622760B (en) | 2018-06-07 | 2018-06-07 | Elevator speed limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108622760B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2542633Y (en) * | 2002-05-17 | 2003-04-02 | 河北东方机械厂 | Two-way speed governors |
| CN1509977A (en) * | 2002-12-24 | 2004-07-07 | �����ذ¹ɷݹ�˾ | Slipper for brake cable |
| CN101780910A (en) * | 2009-01-15 | 2010-07-21 | 上海摩顿电气有限公司 | Machine-room-less speed limiter for elevator |
| CN104609276A (en) * | 2015-02-03 | 2015-05-13 | 合肥工业大学 | Elevator speed limiter and control method thereof |
| EP3279125A1 (en) * | 2016-08-03 | 2018-02-07 | Aip Aps | Fall arrest devices, and related methods |
| CN208577309U (en) * | 2018-06-07 | 2019-03-05 | 南通中力重科机械工程有限公司 | Elevator governor |
-
2018
- 2018-06-07 CN CN201810580521.7A patent/CN108622760B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2542633Y (en) * | 2002-05-17 | 2003-04-02 | 河北东方机械厂 | Two-way speed governors |
| CN1509977A (en) * | 2002-12-24 | 2004-07-07 | �����ذ¹ɷݹ�˾ | Slipper for brake cable |
| CN101780910A (en) * | 2009-01-15 | 2010-07-21 | 上海摩顿电气有限公司 | Machine-room-less speed limiter for elevator |
| CN104609276A (en) * | 2015-02-03 | 2015-05-13 | 合肥工业大学 | Elevator speed limiter and control method thereof |
| EP3279125A1 (en) * | 2016-08-03 | 2018-02-07 | Aip Aps | Fall arrest devices, and related methods |
| CN208577309U (en) * | 2018-06-07 | 2019-03-05 | 南通中力重科机械工程有限公司 | Elevator governor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108622760A (en) | 2018-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9919898B2 (en) | Safety brake device for an elevator installation | |
| US11325810B2 (en) | Traction sheave safety device and elevator car emergency stop method thereof | |
| CN107673159B (en) | Speed limiter of elevator | |
| CN105293247A (en) | Over-speed governor and using method thereof | |
| CN105480890B (en) | Disc locking device and braking method thereof | |
| JP5399597B2 (en) | Braking device for elevator | |
| CN205151436U (en) | Overspeed governor | |
| CN208345519U (en) | A kind of towed elevator car guide rail sure brake system | |
| CN100581971C (en) | Wireless speed limiting system of elevator | |
| CN105819302B (en) | Rope brake | |
| CN106744414B (en) | Stage suspender winch with mechanical anti-falling function | |
| CN114269672B (en) | Electromechanical unidirectional emergency stop device for elevator | |
| CN101284617A (en) | Speed limiter of elevator | |
| CN106365011A (en) | Speed limit protection device with invariable braking force | |
| CN108622760B (en) | Elevator speed limiter | |
| CN208577309U (en) | Elevator governor | |
| CN108455403B (en) | Car follow-up elevator speed limiter | |
| CN210438237U (en) | Lifting device with lifting force | |
| US3509970A (en) | Safety device for elevator cars | |
| CN102398844A (en) | Device for detecting fall-off of hand strap of escalator or moving sidewalk | |
| CN213415928U (en) | Bidirectional progressive safety gear device | |
| CN111706624B (en) | Normally closed brake with flexible speed reduction function | |
| CN211338414U (en) | Speed limiter | |
| CN110203791B (en) | Speed Limiter | |
| CN106904505B (en) | Bidirectional speed limiter for elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 555, Zhennan Road, High tech Zone, Hai'an County, Nantong City, Jiangsu Province 226600 Applicant after: Nantong Zhongli Technology Co.,Ltd. Address before: No. 555, Zhennan Road, High tech Zone, Hai'an County, Nantong City, Jiangsu Province 226600 Applicant before: NANTONG ZHONGLI HEAVY MACHINERY ENGINEERING Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |