CN114955773A - Debugging equipment and debugging method for elevator progressive safety gear lifting mechanism - Google Patents
Debugging equipment and debugging method for elevator progressive safety gear lifting mechanism Download PDFInfo
- Publication number
- CN114955773A CN114955773A CN202210724118.3A CN202210724118A CN114955773A CN 114955773 A CN114955773 A CN 114955773A CN 202210724118 A CN202210724118 A CN 202210724118A CN 114955773 A CN114955773 A CN 114955773A
- Authority
- CN
- China
- Prior art keywords
- safety gear
- driving
- force
- piece
- displacement
- 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.)
- Granted
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
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
- B66B5/0093—Testing of safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
-
- 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 invention belongs to the technical field of elevator equipment debugging and discloses elevator progressive safety gear lifting mechanism debugging equipment and a debugging method, wherein a lifting device comprises a first driving part and a tension detecting part, the first driving part is used for applying lifting force so that a driving wedge block and a corresponding driven wedge block clamp a guide rail, and the tension detecting part is used for detecting the lifting force; the distance measuring device is used for detecting the displacement of the active wedge block; the push-pull device comprises a second driving piece, a push-pull force detection piece and a first displacement detection piece, wherein the second driving piece is used for applying load to the tested car frame, the push-pull force detection piece is used for detecting the push-pull force of the second driving piece, and the first displacement detection piece is used for detecting the displacement of the tested car frame; the control unit is in communication connection with the first driving piece, the tension detecting piece, the distance measuring device, the second driving piece and the push-pull force detecting piece, so that required data can be accurately acquired, manual experience intervention is reduced, and the accuracy and reliability of debugging of the safety gear lifting rod mechanism are improved.
Description
Technical Field
The invention relates to the technical field of elevator equipment debugging, in particular to elevator progressive safety gear lifting mechanism debugging equipment and a debugging method.
Background
The elevator safety gear is an extremely important safety device in an elevator system, and the elevator safety gear is matched with an elevator speed limiter to be used as a linkage protection device when the elevator exceeds the speed or is out of control. The elevator governor is used as a device for speed reaction and operation of the safety gear device, and the elevator safety gear is a mechanism for forcibly stopping the elevator on the guide rail through mechanical action. When the elevator car moves downwards with higher speed and exceeds the mechanical action speed of the elevator speed limiter, the speed limiter acts immediately to block a steel wire rope of the speed limiter, the steel wire rope lifts a lifting rod of a safety clamp device to force a wedge block of the elevator safety clamp device to act and clamp the wedge block on an elevator guide rail, and then the elevator car is forcibly stopped on the elevator guide rail. And when the safety gear wedge block acts, the connecting rod switch on the safety gear system also correspondingly acts, so that the traction machine stops running. It follows that the performance of elevator safety tongs is a determining factor in the safety of elevator operation.
The safety gear braking process is actually the result of the cooperative cooperation of the parts such as the speed limiter, the lifting rod and the safety gear. In the safety protection braking system, the assembly and debugging processes of the safety clamp pull rod lifting mechanism must be ensured to be accurate and reliable to ensure the accuracy and reliability of the action of the safety clamp.
The following regulations are in GB7588 "elevator manufacturing and installation safety code":
1. when the speed limiter acts, the tension of the speed limiter rope is not less than the larger value of the following two values: a) twice the force required for the safety gear to function; b) 300N. (regulation 9.9.4)
2. The clamping jaw or the clamp body of the safety clamp is prohibited from being used as a guide shoe. (regulation 9.8.6.1)
3. Limitation of inclination of car floor: under the condition that the car is unloaded or the load is evenly distributed, the inclination of the floor of the car after the safety gear acts is not more than 5% of the normal position of the floor. (regulation 9.8.7)
4. The car should be equipped with safety tongs that can act in the downward direction, and when the speed of action of the speed limiter is reached, even in the event of breakage of the suspension means, the safety tongs should be able to grip the guide rails to arrest the car that is equipped with the rated load and to keep it stationary. (regulation 9.8.1.1)
At present, the assembly and debugging of the safety gear lifting rod mechanism generally depend on workers with rich experience for debugging, and a reliable detection means is not provided, so that the accuracy and the reliability of the assembly and debugging process of the safety gear lifting rod mechanism cannot be ensured.
Disclosure of Invention
The invention aims to provide elevator progressive safety gear lifting mechanism debugging equipment and a debugging method, which reduce manual experience intervention and improve the debugging accuracy and reliability of a safety gear lifting mechanism, thereby ensuring the accuracy and reliability of the action of the safety gear and improving the operation safety of an elevator.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, a debugging device for a progressive elevator safety gear lifting mechanism is provided, which comprises:
the test bench is provided with two guide rails which are spaced and opposite;
the guide shoes in sliding fit with the guide rails are correspondingly arranged on two opposite sides of the tested car frame, and the tested car frame comprises two vertical beams arranged at intervals and an upper cross beam and a lower cross beam which are connected with the two vertical beams;
the first safety gear and the second safety gear are respectively arranged at two ends of the upper cross beam, the first safety gear is a speed limiter side safety gear, and the first safety gear and the second safety gear respectively comprise a driving wedge block and a driven wedge block which can be close to or far away from each other;
the lifting device comprises a first driving piece and a tension detecting piece, the first driving piece is arranged on the upper cross beam and used for driving a driving wedge block of the first safety gear and a driving wedge block of the second safety gear to move upwards so that the driving wedge block and the corresponding driven wedge block clamp the guide rail, and the tension detecting piece is used for detecting the lifting force of the first driving piece;
the distance measuring device is used for detecting the displacement of the active wedge block;
the push-pull device is connected between the lower cross beam and the bottom of the test bench and comprises a second driving piece, a push-pull force detection piece and a first displacement detection piece, the second driving piece is used for applying a load to the tested car frame, the push-pull force detection piece is used for detecting the push-pull force of the second driving piece, and the first displacement detection piece is used for detecting the displacement of the tested car frame;
and the control unit is in communication connection with the first driving piece, the tension detecting piece, the distance measuring device, the second driving piece, the push-pull force detecting piece and the first displacement detecting piece.
As a preferable scheme of the debugging device of the elevator progressive safety gear lifting mechanism provided by the invention, a transversely extending dowel bar is rotatably arranged on the upper cross beam, a first force transmission crank arm and a second force transmission crank arm are respectively arranged at two ends of the dowel bar, one end of the first force transmission crank arm, which is far away from the dowel bar, is rotatably connected with a driving wedge block of the first safety gear, one end of the second force transmission crank arm, which is far away from the dowel bar, is rotatably connected with a driving wedge block of the second safety gear, and an output end of the first driving piece is connected to the first force transmission crank arm and is positioned between the dowel bar and the driving wedge block of the first safety gear.
As a preferred embodiment of the debugging device for the elevator progressive safety gear lifting mechanism provided by the present invention, each of the first safety gear and the second safety gear further includes a base fixed to the upper beam, and a first guide plate and a second guide plate disposed on the base, the active wedge is slidably engaged with the first guide plate, the passive wedge is slidably engaged with the second guide plate, the first safety gear and the second safety gear are both provided with the distance measuring device, the distance measuring device includes a second displacement detecting element disposed on the first guide plate and a moving element protruding from the active wedge, and the second displacement detecting element is used for detecting a displacement of the moving element.
As a preferable scheme of the debugging device of the elevator progressive safety gear lifting mechanism provided by the invention, the distance measuring device further comprises a mounting seat, the mounting seat comprises a mounting part and a positioning part which are vertically connected, one side of the first guide plate, which is back to the second guide plate, is provided with a positioning groove, the positioning part is clamped in the positioning groove, the mounting part is attached to the surface of the first guide plate, and the second displacement detection part is arranged on the mounting part.
As a preferable scheme of the debugging equipment for the elevator progressive safety gear lifting mechanism, the first driving piece comprises a first torque motor, a first lead screw is vertically and movably arranged on the first torque motor, the side, far away from the first torque motor, of the first lead screw is sequentially provided with the tension detecting piece, the joint bearing and a retaining ring which is detachably arranged on the joint bearing, and the retaining ring is connected with the driving wedge block.
As a preferable scheme of the debugging device of the elevator progressive safety gear lifting mechanism provided by the invention, the second driving piece comprises a second torque motor, a second lead screw is vertically movably arranged on the second torque motor, the push-pull force detection piece and a connecting plate are sequentially arranged on one side of the second lead screw, which is far away from the second torque motor, and the connecting plate is connected to the bottom surface of the lower cross beam.
As a preferred scheme of the debugging equipment of the elevator progressive safety gear lifting mechanism, the test bench is provided with a mounting rack, the control unit comprises an electric control box body, the electric control box body is arranged on the mounting rack, a PLC (programmable logic controller) and a torque controller are arranged in the electric control box body and are in communication connection, the torque controller is used for controlling the first driving piece and the second driving piece to output torque, and the electric control box body is provided with a human-computer interaction interface and an emergency stop switch.
In a second aspect, a method for debugging a progressive elevator safety gear lifting mechanism is provided, wherein the method for debugging the progressive elevator safety gear lifting mechanism by using the debugging equipment comprises the following steps:
s1, controlling the first driving piece to output a lifting force, and detecting whether the driving wedge displacement D1 of the first safety gear and the driving wedge displacement D2 of the second safety gear exceed a specified range, wherein the first safety gear is a speed limiter side safety gear;
s2, controlling the second driving piece to output a push-pull force, and judging whether the driving wedge and the driven wedge have a safety clearance with the surface of the guide rail on the premise that D1 and D2 are both in a specified range;
s3, controlling the first driving piece to output a pulling force, and testing the initial clamping force F First stage And determining the initial clamping force F First stage Whether the safety condition of the clamping force of the speed limiter is less than or equal to the safety condition of the clamping force of the speed limiter is met;
s4, controlling the first driving piece to output linear lifting force, and judging whether the difference value between D2 and D1 is within a preset range to judge whether the inclination of the tested car frame meets the requirement;
and S5, controlling the first driving piece to output a lifting force and the second driving piece to output a pulling force, and detecting whether the displacement increment of the tested car frame is 0.
As the preferable proposal of the debugging method of the elevator progressive safety gear lifting mechanism provided by the invention,
in S2, by comparing the variation of the front and rear detection values of the push-pull force detection member, it is determined whether the active wedge and the passive wedge are in contact with the surface of the guide rail;
in the S3, when the pulling force is increased but the displacement value is not increased in any one of D1 and D2, the detection value of the pulling force detector is the initial clamping force F First stage 。
As the preferable proposal of the debugging method of the elevator progressive safety gear lifting mechanism provided by the invention,
in S4, the step of controlling the first driving element to output the linear lifting force sequentially includes:
s41, increasing the pulling force to 0.5F First stage And holding for a time T1;
s42, pulling force is 0.5F Beginning of the design Increased to 0.7F First stage And holding for a time T2;
s43, pulling force is 0.7F First stage Increased to 0.9F First stage And holding for a time T3;
s44, pulling force is 0.9F First stage Increase to F First stage And held for time T4.
The invention has the beneficial effects that:
when the debugging equipment is used for debugging, the control unit controls the first driving piece to output a lifting force so as to detect whether the displacement D1 of the active wedge block of the first safety gear and the displacement D2 of the active wedge block of the second safety gear exceed a specified range, thereby avoiding overlarge displacement of the active wedge block of the first safety gear and the active wedge block of the second safety gear. The control unit can control the second driving piece to output push-pull force, and judges whether the driving wedge block and the driven wedge block have safety clearances with the surface of the guide rail on the premise that D1 and D2 are within a specified range. The control unit can control the first driving part to output the lifting force so as to test the initial clamping force F First stage And determining the initial clamping force F First stage Whether the safety condition of the clamping force of the speed limiter is less than or equal to the safety condition of the clamping force of the speed limiter is met. The control unit can control the first driving piece to output linear lifting force, whether the difference value between D2 and D1 is within a preset range or not is judged, and the difference value between D2 and D1 is used for reflecting the inclination of the tested car frame, so that whether the inclination of the tested car frame meets the national standard requirement or not is judged. The control unit can control the first driving element to output a lifting force and the second driving element to output a pulling force so as to detect whether the displacement increment of the tested car frame is 0 or not, thereby ensuring that the safety tongs can clamp the guide rail when the action speed of the speed limiter is reached, so that the car with rated load capacity is stopped and kept in a static state, and ensuring the safety performance of the elevator. The debugging equipment and the debugging method can reduce manual experience intervention, accurately acquire required data and improve the debugging accuracy and the debugging feasibility of the safety tongs lifting rod mechanism through the communication connection of the control unit, each detection piece and each driving pieceThe reliability is ensured, so that the accuracy and the reliability of the action of the safety tongs are ensured, and the running safety of the elevator is improved.
Drawings
Fig. 1 is a schematic structural diagram of a debugging device of a progressive safety gear lifting mechanism of an elevator, which is provided by the embodiment of the invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic diagram of a test bench according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of the invention at B in FIG. 3;
fig. 5 is a schematic structural view of a car frame under test according to an embodiment of the present invention;
FIG. 6 is a schematic view of a first safety gear installed with a distance measuring device according to an embodiment of the present invention;
FIG. 7 is a schematic view of the connection of a pulling device with a first safety gear according to an embodiment of the present invention;
fig. 8 is a schematic connection diagram of a second safety gear according to an embodiment of the present invention;
FIG. 9 is a schematic view of the structure of a pulling apparatus according to an embodiment of the present invention;
figure 10 is a schematic structural view of a push-pull device according to an embodiment of the present invention;
FIG. 11 is a control schematic of a control unit provided in accordance with an embodiment of the present invention;
fig. 12 is a graph showing the setting of the lifting force output by the first driving member in step S4 according to the present invention.
In the figure:
1. a test bench; 2. a tested car frame; 3. a first safety gear; 4. a second safety gear; 5. a pulling device; 6. a distance measuring device; 7. a push-pull device; 8. a control unit;
11. a guide rail; 12. a base; 13. a support stand; 14. pressing a plate; 15. a mounting frame;
21. a guide shoe; 22. erecting a beam; 23. an upper cross beam; 24. a lower cross beam; 25. a dowel bar; 26. a first power transmission crank arm; 27. a second force-transmitting crank arm;
31. an active wedge block; 32. a passive wedge; 33. a base body; 34. a first guide plate; 35. a second guide plate; 341. positioning a groove;
51. a first driving member; 52. a tension detecting member; 53. a knuckle bearing; 54. a retaining ring; 55. a fixing plate;
511. a first torque motor; 512. a first lead screw;
61. a second displacement detecting member; 62. a movable member; 63. a mounting seat;
631. an installation part; 632. a positioning part;
71. a second driving member; 72. a push-pull force detecting member; 73. a first displacement detecting member; 74. a connecting plate;
711. a second torque motor; 712. a second lead screw;
81. an electric control box body; 82. and (5) a human-computer interaction interface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying 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 further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1 and fig. 2, the present embodiment provides a debugging device for a progressive elevator safety gear lifting mechanism, which includes a test bench 1, a car frame 2 to be tested, a first safety gear 3, a second safety gear 4, a lifting device 5, a distance measuring device 6, and a control unit 8.
Referring to fig. 3, the test rig 1 includes a base 12 and two support stands 13 spaced apart and vertically disposed on the base 12. The base 12 is I-shaped, so that the contact area with the ground can be increased, and the stability of the equipment is improved. The sides of the two supporting uprights 13 facing each other are provided with guide rails 11, which guide rails 11 extend vertically and function as guide rails for simulating the raising and lowering of the elevator.
Referring to fig. 3 and 4, a plurality of pressing plates 14 are vertically arranged on the two guide rails 11 at intervals, and the pressing plates 14 are pressed on the contact surfaces of the guide rails 11 and the supporting stands 13. The fastening member is passed through the pressing plate 14 and screwed with the support stand 13 to press-fix the guide rail 11 to the support stand 13.
Referring to fig. 5, the car frame 2 under test includes an upper cross member 23, a lower cross member 24, and two vertical members 22 arranged at intervals. The upper cross member 23 is connected to the upper ends of the two vertical beams 22 and is perpendicular to the two vertical beams 22. The lower cross member 24 is connected to the lower ends of the two vertical beams 22 and is perpendicular to the two vertical beams 22. That is, the upper cross member 23, the lower cross member 24, and the two vertical members 22 are surrounded to form a rectangular frame structure for simulating a car frame of an elevator.
With continued reference to fig. 5, one guide shoe 21 is disposed above each end of the upper cross member 23, one guide shoe 21 is disposed below each end of the lower cross member 24, the two guide shoes 21 on the left side are slidably engaged with the left guide rail 11, and the two guide shoes 21 on the right side are slidably engaged with the right guide rail 11 (see the orientation in fig. 3 and 5).
The first safety gear 3 and the second safety gear 4 are respectively arranged at two ends of the upper beam 23, and the two have the same structure in the embodiment. The first safety gear 3 and the second safety gear 4 can clamp or release the guide rail 11 so as to simulate the state when the elevator normally runs and simulate the state when the elevator car runs downwards and accelerates, and the speed limiter and the safety gears act together to forcibly stop the elevator car on the guide rail of the elevator.
Specifically, referring to fig. 6, taking the first safety gear 3 as an example, the first safety gear 3 includes a seat body 33, a first guide plate 34, a second guide plate 35, and an active wedge 31 and a passive wedge 32 that can move toward or away from each other. The seat body 33 is fixed to an end of the upper beam 23, and defines a mounting groove thereon, and the first guide plate 34 and the second guide plate 35 are both fixedly disposed in the mounting groove. The sides of the first guide plate 34 and the second guide plate 35 facing each other are each provided with a guide slope so that the distance between the first guide plate 34 and the second guide plate 35 gradually decreases from bottom to top. The driving wedge 31 is slidably matched with the first guide plate 34, and specifically, an inclined surface on the driving wedge 31 is slidably matched with a guide inclined surface of the first guide plate 34; the passive wedge 32 is slidably engaged with the second guide plate 35, and specifically, an inclined surface of the passive wedge 32 is slidably engaged with a guide inclined surface of the second guide plate 35, so that the active wedge 31 and the passive wedge 32 can move toward or away from each other, thereby clamping or releasing the corresponding guide rail 11.
Referring to fig. 7 and 8, the structure of the second safety gear 4 corresponds to the structure of the first safety gear 3 and will not be described in detail here. And distance measuring devices 6 are arranged on the first safety gear 3 and the second safety gear 4. The distance measuring device 6 is used for detecting the displacement of the active wedge 31 on the two safety tongs.
Referring to fig. 7 and 9, the pulling device 5 includes a first driving member 51 and a tension detecting member 52, the first driving member 51 is disposed on the upper cross beam 23 and is used for driving the active wedge 31 of the first safety gear 3 and the active wedge 31 of the second safety gear 4 to move upwards, so that the active wedge 31 and the corresponding passive wedge 32 clamp the guide rail 11. Specifically, the first driving member 51 can apply a lifting force to move the driving wedge 31 of the first safety gear 3 and the driving wedge 31 of the second safety gear 4 upward, the driving wedge 31 gradually approaches the surface of the guide rail 11 during the upward movement, and after the driving wedge 31 and the driven wedge 32 are both in contact with the surface of the guide rail 11, the driving wedge 31 and the driven wedge 32 can clamp the middle guide rail 11 more tightly when the lifting force is continuously applied. The tension detecting member 52 is for detecting the lifting force applied by the first driving member 51.
When an actual elevator runs, if an elevator car suddenly accelerates and descends, the speed limiter rope can apply lifting force to the safety tongs, so that two wedge blocks of the safety tongs clamp an elevator guide rail. The safety gear on the elevator car has a tendency to move downwards relative to the elevator guide rail, so that the guide rail is clamped more tightly by the two wedges.
In this embodiment, the process of applying a lifting force to the safety gear by the speed governor rope is simulated by providing the lifting device 5, and the applied lifting force value of the first driving member 51, which is the tension value of the speed governor rope, is detected by the tension detecting member 52.
Referring to fig. 1, the push-pull device 7 is connected between the lower cross beam 24 of the car frame 2 under test and the base 12 of the test bench 1, and is used for simulating the load condition of the car frame 2 under test during operation. Specifically, referring to fig. 10, the push-pull device 7 includes a second driving member 71, a push-pull force detecting member 72, and a first displacement detecting member 73, the second driving member 71 being used to apply a load to the car frame 2 under test. The tested car frame 2 has the states of acceleration ascending, deceleration ascending, acceleration descending, deceleration descending and the like during actual operation. By arranging the push-pull device 7, push-pull force can be applied to the tested car frame 2, so that the real uplink and downlink process of the car frame can be simulated. The push-pull force detecting member 72 is used to detect the push-pull force of the second driving member 71. The first displacement detecting member 73 is used to detect the amount of displacement of the car frame 2 under test. After the first safety gear 3 and the second safety gear 4 are actuated, the tested car frame 2 with the rated load capacity should be stopped and kept in a static state, i.e. the measured increment of the displacement of the tested car frame 2 should be 0.
The control unit 8 is communicatively connected to the first driving member 51, the tension detecting member 52, the distance measuring device 6, the second driving member 71 and the push-pull force detecting member 72. The control unit 8 is able to control the first driver 51 and the second driver 71 to output a desired force in accordance with the set parameters. And the control unit 8 can acquire the detection values of the tension detector 52, the distance measuring device 6, the push-pull force detector 72 and the first displacement detector 73, so as to know the displacement amount of the driving wedge 31 and the displacement amount of the car frame 2 under test.
It is emphasized that in this embodiment, the speed limiter is simulated using the pulling device 5, and the first safety gear 3 is located on the same side as the pulling device 5, i.e. the first safety gear 3 is a speed limiter-side safety gear in an actual elevator. As shown in fig. 1 and 2, the lifting device 5 and the first safety gear 3 are both located on the right side of the upper beam 23, corresponding to a speed governor and a speed governor-side safety gear on an actual elevator.
The arrangement mode of debugging equipment in this embodiment can simulate the operating mode of elevator overspeed governor side safety tongs and overspeed governor offside safety tongs actual motion more lifelikely to accomplish corresponding inspection project to two safety tongs, improve the reliability and the accuracy of inspection result.
In this embodiment, when the commissioning apparatus is used for commissioning, the control unit 8 controls the first driving element 51 to output a pulling force to detect whether the displacement D1 of the driving wedge 31 of the first safety gear 3 and the displacement D2 of the driving wedge 31 of the second safety gear 4 exceed a predetermined range, so as to avoid an excessive displacement of the driving wedge 31 of the first safety gear 3 and the driving wedge 31 of the second safety gear 4. At this stage, a governor tension value of a suitable magnitude can be obtained.
The control unit 8 can control the second driving member 71 to output the push-pull force, and determine whether the driving wedge 31 and the driven wedge 32 have a safety clearance with the surface of the guide rail 11 on the premise that D1 and D2 are both within a specified range, so as to ensure that the safety clearance exists between the driving wedge 31 and the driven wedge 32 and the surface of the guide rail 11 when the elevator is in normal operation, and avoid friction between the driving wedge 31 and the driven wedge 32 and the guide rail 11.
The control unit 8 can control the first driving member 51 to output the lifting force so as to test the initial clamping force F First stage And determining the initial clamping force F First stage Whether the safety condition of the clamping force of the speed limiter is less than or equal to the safety condition of the clamping force of the speed limiter is met, so that the speed limiter can ensure that the first safety gear 3 and the second safety gear 4 can act until the first safety gear and the second safety gear clamp the guide rails 11 on two sides.
The control unit 8 can control the first driving element 51 to output linear lifting force, and judge whether the difference value between D2 and D1 is within a preset range, and the difference value between D2 and D1 is used for reflecting the inclination of the tested car frame 2, so as to judge whether the inclination of the tested car frame 2 meets the national standard requirements.
Further, the control unit 8 can control the first driving element 51 to output a lifting force and the second driving element 71 to output a pulling force so as to simulate the process that the first safety gear 3 and the second safety gear 4 act to clamp the guide rail 11 when the tested car frame 2 moves downwards at an accelerated speed, and whether the increment of the displacement of the tested car frame 2 is 0 can be judged according to the detection value of the first displacement detection element 73, so that the safety gears can clamp the guide rail when the action speed of the speed limiter is reached, the car with rated load capacity is stopped and kept in a static state, and the safety performance of the elevator is ensured.
According to the debugging device and the debugging method, manual experience intervention can be reduced through the communication connection of the control unit 8, the detection parts and the driving part, required data can be accurately acquired, and the debugging accuracy and reliability of the safety tongs lifting rod mechanism are improved, so that the action accuracy and reliability of the safety tongs are ensured, and the operation safety of an elevator is improved.
Referring to fig. 5, 7 and 8, a transverse extending dowel bar 25 is rotatably disposed on the upper cross beam 23, and the dowel bar 25 is parallel to the upper cross beam 23. Two ends of the dowel bar 25 are respectively provided with a first force transmission crank arm 26 and a second force transmission crank arm 27, and the first force transmission crank arm 26 and the second force transmission crank arm 27 are both perpendicular to the dowel bar 25. As shown in fig. 7, one end of the first transmission crank arm 26, which is far away from the transmission rod 25, is rotatably connected with the driving wedge 31 of the first safety gear 3, and the output end of the first driving element 51 is connected to the first transmission crank arm 26 and is located between the transmission rod 25 and the driving wedge 31 of the first safety gear 3. As shown in fig. 8, the end of the second force transmission connecting lever 27 remote from the force transmission rod 25 is rotatably connected to the driving wedge 31 of the second safety gear 4.
When the first driving element 51 outputs a pulling force, the first transmission connecting lever 26 can be driven to rotate around the center of the transmission rod 25, so that the driving wedge 31 of the first safety gear 3 is driven to move upwards to clamp the right guide rail 11 with the driven wedge 32. Meanwhile, the transmission lever 25 is driven by the first transmission connecting lever 26 to synchronously rotate, so that the second transmission connecting lever 27 is driven to rotate around the center of the transmission lever 25 to drive the driving wedge 31 of the second safety gear 4 to move upwards to clamp the left guide rail 11 with the driven wedge 32.
In this embodiment, the lifting device 5 for simulating the speed governor is disposed on one side of the first safety gear 3, and the lifting device 5 can simultaneously move the first safety gear 3 and the second safety gear 4 through the dowel bar 25, so that the matching movement process of the speed governor and the safety gears on the two sides of the elevator car can be truly simulated.
Referring to fig. 6, the distance measuring device 6 includes a second displacement detecting element 61 disposed on the first guide plate 34 and a movable element 62 protruding from the active wedge 31, wherein when the movable element 62 on the active wedge 31 moves relative to the second displacement detecting element 61, the second displacement detecting element 61 is capable of detecting and recording the displacement of the movable element 62. In the present embodiment, the second displacement detecting member 61 is a displacement sensor, and the displacement sensor may be a resistance type displacement sensor.
In order to ensure that the installation positions of the two distance measuring devices 6 on the corresponding first guide plates 34 are consistent, the distance measuring devices 6 further comprise installation seats 63, and the installation seats 63 have a positioning function. Specifically, referring to fig. 7 and 8, the mounting base 63 includes a mounting portion 631 and a positioning portion 632 that are vertically connected, a positioning groove 341 is disposed on a side of the first guide plate 34 facing away from the second guide plate 35, and the positioning portion 632 is snapped into the positioning groove 341 to realize quick positioning of the distance measuring device 6, which only needs to ensure that positions of the positioning grooves 341 on the two first guide plates 34 are consistent. The mounting portion 631 is attached to the surface of the first guide plate 34, and the second displacement detector 61 is provided on the mounting portion 631.
Referring to fig. 9, a schematic view of the structure of the pulling device 5 is shown. The first driving member 51 includes a first torque motor 511, and a first screw 512 is vertically movably disposed on the first torque motor 511. The first torque motor 511 can output a linear pulling force through the first lead screw 512, or stabilize the pulling force at a certain value. The side of the first screw 512 away from the first torque motor 511 is sequentially provided with the tension detecting element 52, the knuckle bearing 53 and the retaining ring 54 detachably mounted on the knuckle bearing 53, and the retaining ring 54 is connected with the hanging ring on the first power transmission crank arm 26. The knuckle bearing 53 can prevent the lifting device 5 and the first power transmission crank arm 26 from being rigidly connected, and can adapt to the rotation of the first power transmission crank arm 26. The retaining ring 54 is engaged with the hanging ring to prevent the two from separating.
Further, a fixing plate 55 is provided at a lower end of the first torque motor 511, and the fixing plate 55 is coupled to the upper beam 23. Illustratively, the attachment plate 55 is coupled to the upper cross member 23 by threaded fasteners.
Referring to figure 10, a schematic view of the push-pull 7 is shown. The second driving member 71 includes a second torque motor 711, and a second screw 712 is vertically movably disposed on the second torque motor 711. The second torque motor 711 can output a linear push-pull force through the second lead screw 712, or stabilize the push-pull force at a certain value. The push-pull force detection member 72 and the connection plate 74 are sequentially disposed on a side of the second lead screw 712 away from the second torque motor 711, and the push-pull force detection member 72 and the connection plate 74 are connected by a connection rod. The connecting plate 74 is attached to the bottom surface of the lower beam 24 and the housing of the second torque motor 711 is fixed to the base 12 of the test rig 1 to secure the push-pull 7 between the lower beam 24 and the base 12. The first displacement sensing member 73 is connected between the lower beam 24 and the base 12, and is preferably a displacement sensor.
In this embodiment, the second displacement detector 61 for detecting the displacement of the driving wedge 31 of the first safety gear 3 is defined as a first displacement sensor, and the second displacement detector 61 for detecting the displacement of the driving wedge 31 of the second safety gear 4 is defined as a second displacement sensor. The first displacement detecting member 73 is defined as a displacement sensor three. Further, the tension detector 52 is a tension sensor, and the push-pull force detector 72 is a push-pull force sensor.
Referring to fig. 2 and 4, the upper end of the supporting upright 13 of the test bed 1 is provided with a mounting frame 15, the control unit 8 comprises an electronic control box body 81, and the electronic control box body 81 is arranged on the mounting frame 15. A PLC controller and a torque controller are disposed in the electronic control box 81, and the torque controller is used for controlling the output torque of the first driving element 51 (the first torque motor 511) and the second driving element 71 (the second torque motor 711). In particular, in the present embodiment, the torque controller includes a first torque motor controller and a second torque motor controller. Referring to fig. 11, the PLC controller can input signals to the first torque motor controller and the second torque motor controller according to set parameters, and the first torque motor controller and the second torque motor controller further control the first torque motor 511 and the second torque motor 711 to output a pair stress value according to the signals.
Furthermore, the first displacement sensor, the second displacement sensor, the third displacement sensor, the tension sensor and the push-pull force sensor are all in communication connection with the PLC, so that the PLC can acquire detection values of the sensors.
The electronic control box 81 is provided with a human-computer interface 82. Referring to fig. 11, parameter settings such as setting of the governor tension, the governor clamping force, and the car rated load force can be performed through the man-machine interface 82. Furthermore, the human-machine interface 82 can display various required parameters in real time, such as the detected value of the first displacement sensor (the displacement of the safety gear 1 in fig. 11), the detected value of the second displacement sensor (the displacement of the safety gear 2 in fig. 11), the detected value of the third displacement sensor (the displacement of the car in fig. 11), the detected value of the tension sensor (the tension of the speed governor in fig. 11), the detected value of the push-pull force sensor (the load force of the car in fig. 11), and the parameters such as the clamping force of the speed governor. The debugging personnel can judge whether the test is qualified according to the parameters displayed by the interface.
Optionally, an emergency stop switch is arranged on the electronic control box 81, and the emergency stop switch is used for stopping the operation of the equipment at an emergency, so that the safety of the equipment is ensured. The electronic control box 81 is provided with a plurality of function selection buttons, such as a "tension start button", an "initial clamping force start button", and a "load start button" (described below). Further, an indicator light is further disposed on the electronic control box 81 for indicating the corresponding button to be turned on or off.
The electric control box 81 is also provided with a power supply for supplying power to electronic elements such as a PLC (programmable logic controller), a first torque motor controller, a second torque motor controller, a man-machine interaction interface 82, an emergency stop switch, a button and an indicator light.
The embodiment also provides a debugging method of the elevator progressive safety gear lifting mechanism, and the debugging method adopts the debugging equipment of the elevator progressive safety gear lifting mechanism to debug, and comprises the following steps:
and S0, electrifying the equipment, entering parameter setting in the human-computer interaction interface 82, and respectively inputting the tension of the speed limiter, the clamping force of the speed limiter and the rated load of the car according to debugging requirements.
And S1, controlling the first driver 51 to output a lifting force, and detecting whether the displacement D1 of the driving wedge 31 of the first safety gear 3 and the displacement D2 of the driving wedge 31 of the second safety gear 4 exceed a specified range, wherein the first safety gear 3 is a speed governor side safety gear, and the second safety gear 4 is a safety gear opposite to the speed governor.
Specifically, when a "tension start button" is pressed to start debugging, the PLC controller inputs a signal to the first torque motor controller according to the magnitude of the tension value of the speed limiter, and the first torque motor controller controls the first torque motor 511 to output pulling force (reach corresponding pulling force and maintain the pulling force). Meanwhile, the PLC controller compares whether the displacement D1 of the driving wedge 31 of the first safety gear 3 and the displacement D2 of the driving wedge 31 of the second safety gear 4 (i.e., the displacement of the safety gear 1 and the displacement of the safety gear 2 in fig. 11) are within a predetermined range, and if the displacement exceeds the predetermined range, checks the two safety gears and adjusts the lifting and pulling rod mechanism. If the displacement is within the specified range, the next debugging is carried out.
And S2, controlling the second driving piece 71 to output the push-pull force, and judging whether the driving wedge 31 and the driven wedge 32 have a safety clearance with the surface of the guide rail 11 on the premise that D1 and D2 are both within a specified range.
Specifically, in S2, the PLC controller inputs a signal to the second torque motor controller, and the second torque motor controller controls the second torque motor 711 to operate, and determines whether the active wedge 31 and the passive wedge 32 are in contact with the surface of the guide rail 11 by comparing the variation of the front and rear detection values of the push-pull force detector 72. If the active wedge 31 and/or the passive wedge 32 contact with the surface of the guide rail 11, the detection value of the push-pull force sensor is obviously increased due to the frictional resistance, and the safety clearance between the two safety tongs and the surface of the guide rail 11 can be judged by comparing the change of the front and rear force values of the push-pull force sensor. If not, the two safety tongs are checked and the lifting rod mechanism is adjusted. And (5) carrying out the next step after the product is qualified.
S3, controlling the first driving member 51 to output a pulling force to test the initial clamping force F First stage And determining the initial clamping force F First stage Whether the safety condition of the clamping force of the speed limiter is less than or equal to the safety condition of the clamping force of the speed limiter is met; when the pulling force increases but the displacement value does not increase in either of D1 and D2, the detection value of the pulling force detector 52 is the initial clamping force F First stage 。
Specifically, in S3, when the "initial clamping force start button" is pressed, the PLC controller inputs a signal to the first torque motor controller, the first torque motor controller controls the first torque motor 511 to output the pulling force, and simultaneously, the PLC controller monitors the detection values of the tension sensor, the first displacement sensor, and the second displacement sensor in real time, wherein the tension value of one of the displacement sensors when the pulling force increases but the displacement amount does not increase is defined as the initial clamping force F First stage . And the PLC records the initial clamping force, compares the initial clamping force with the clamping force of the speed limiter, and terminates debugging if the initial clamping force is greater than the clamping force of the speed limiter. And when the initial clamping force meets the safety condition that the clamping force is less than or equal to the clamping force of the speed limiter, carrying out the next test.
S4, controlling the first driving piece 51 to output linear lifting force, and judging whether the difference value between D2 and D1 is within a preset range so as to judge whether the inclination of the tested car frame 2 meets the requirement;
in S4, the PLC controller inputs a signal to the first torque motor controller according to the set curve given in fig. 12, and the first torque motor controller controls the first torque motor 511 to output a pulling force (reach a corresponding pulling force and maintain), specifically, the steps of controlling the first torque motor 511 to output a linear pulling force sequentially include:
s41, increasing the lifting force to 0.5F Beginning of the design And holding for a time T1;
s42, pulling force is 0.5F First stage Increased to 0.7F First stage And holding for a time T2;
s43, pulling force is 0.7F Beginning of the design Increased to 0.9F First stage And holding for a time T3;
s44, pulling force is 0.9F First stage Increase to F First stage And held for time T4.
Meanwhile, the PLC compares the displacement D1 of the active wedge 31 of the first safety gear 3 with the displacement D2 of the active wedge 31 of the second safety gear 4, if the value D1 is smaller than the value D2, namely 1 mm-2 mm, the difference value between D2 and D1 is within a preset range, if the difference value exceeds the range, the lifting rod mechanism is manually adjusted, and then the test is repeated to enable the difference value to meet the requirements. In the step, force values of 50%, 70%, 90% and 100% of the initial clamping force are tested, and the next force value is tested after one force value is qualified. And (5) after all the products are qualified, carrying out the next step.
And S5, controlling the first driving element 51 to output the lifting force and the second driving element 71 to output the pulling force, and detecting whether the displacement increment of the tested car frame 2 is 0.
When the load starting button is pressed, the PLC controller inputs a signal to the first torque motor controller according to the magnitude of the clamping force of the speed limiter, and the first torque motor controller controls the first torque motor 511 to output the pulling force (to achieve the corresponding pulling force and maintain the pulling force). Subsequently, the PLC controller inputs a signal to the second torque motor controller according to the magnitude of the rated load of the car, and the second torque motor controller controls the second torque motor 711 to output a pulling force (reach a corresponding pulling force and maintain) so as to simulate the rated load of the car frame 2 under test. And the PLC monitors whether the detection value of the displacement sensor III is in a limited range in real time, namely whether the displacement increment of the tested car frame 2 is 0.
According to the debugging method of the elevator progressive safety gear lifting mechanism, the tension value of the speed limiter and the initial clamping force of the safety gear are displayed on the man-machine interaction interface 82 through the tension sensor and the corresponding module; displaying the rated load of the car in real time on the man-machine interaction interface 82 through a push-pull force sensor and a corresponding module; displaying the displacement of the active wedge 31 of the first safety gear 3 in real time on a human-computer interaction interface 82 through a first displacement sensor and a corresponding module; displaying the displacement of the active wedge 31 of the second safety gear 4 in real time on the human-computer interaction interface 82 through a second displacement sensor and a corresponding module; and displaying the car displacement (namely the displacement of the tested car frame 2) in real time on the human-computer interaction interface 82 through the third displacement sensor and the corresponding module. By original debugging work through operator's experience, convert into and detect corresponding data through each sensor to debug, the result of debugging is quantized simultaneously, can save a large amount of debugging data, makes things convenient for later maintenance to trail, ensures elevator safe operation.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a gradual safety tongs of elevator draws mechanism debugging equipment which characterized in that includes:
the test bench comprises a test bench (1), wherein two guide rails (11) which are spaced and opposite are arranged on the test bench (1);
the guide shoes (21) which are in sliding fit with the guide rails (11) are correspondingly arranged on two opposite sides of the tested car frame (2), and the tested car frame (2) comprises two vertical beams (22) which are arranged at intervals, and an upper cross beam (23) and a lower cross beam (24) which are connected with the two vertical beams (22);
the first safety gear (3) and the second safety gear (4) are respectively arranged at two ends of the upper cross beam (23), the first safety gear (3) is a speed limiter side safety gear, and the first safety gear (3) and the second safety gear (4) respectively comprise an active wedge block (31) and a passive wedge block (32) which can be close to or far away from each other;
the lifting device (5) comprises a first driving piece (51) and a tension detecting piece (52), the first driving piece (51) is arranged on the upper cross beam (23) and used for driving a driving wedge block (31) of the first safety gear (3) and a driving wedge block (31) of the second safety gear (4) to move upwards so that the driving wedge block (31) and a corresponding driven wedge block (32) clamp the guide rail (11), and the tension detecting piece (52) is used for detecting the lifting force of the first driving piece (51);
the distance measuring device (6) is used for detecting the displacement of the active wedge block (31);
the push-pull device (7) is connected between the lower cross beam (24) and the bottom of the test bench (1), the push-pull device (7) comprises a second driving piece (71), a push-pull force detection piece (72) and a first displacement detection piece (73), the second driving piece (71) is used for applying load to the tested car frame (2), the push-pull force detection piece (72) is used for detecting the push-pull force of the second driving piece (71), and the first displacement detection piece (73) is used for detecting the displacement of the tested car frame (2);
and the control unit (8) is in communication connection with the first driving piece (51), the tension detecting piece (52), the distance measuring device (6), the second driving piece (71), the push-pull force detecting piece (72) and the first displacement detecting piece (73).
2. The elevator progressive safety gear lifting mechanism debugging device of claim 1, a transversely extending dowel bar (25) is rotatably arranged on the upper cross beam (23), a first force transmission crank arm (26) and a second force transmission crank arm (27) are respectively arranged at two ends of the force transmission rod (25), one end of the first force transmission crank arm (26) far away from the force transmission rod (25) is rotationally connected with a driving wedge block (31) of the first safety gear (3), one end of the second force transmission crank arm (27) far away from the force transmission rod (25) is rotationally connected with a driving wedge block (31) of the second safety gear (4), the output end of the first driving piece (51) is connected to the first force transmission crank arm (26), and is located between the dowel bar (25) and the active wedge (31) of the first safety gear (3).
3. The elevator progressive safety gear lifting mechanism debugging device of claim 1, the first safety gear (3) and the second safety gear (4) respectively comprise a base body (33) fixed on the upper cross beam (23), a first guide plate (34) and a second guide plate (35) arranged on the base body (33), the active wedge (31) is slidably engaged with the first guide plate (34), the passive wedge (32) is slidably engaged with the second guide plate (35), the first safety gear (3) and the second safety gear (4) are both provided with the distance measuring device (6), the distance measuring device (6) comprises a second displacement detecting piece (61) arranged on the first guide plate (34) and a movable piece (62) protruding on the active wedge block (31), the second displacement detecting member (61) is for detecting a displacement amount of the movable member (62).
4. The debugging equipment for the progressive safety gear lifting mechanism of the elevator according to claim 3, wherein the distance measuring device (6) further comprises a mounting seat (63), the mounting seat (63) comprises a mounting part (631) and a positioning part (632) which are vertically connected, one side of the first guide plate (34) facing away from the second guide plate (35) is provided with a positioning groove (341), the positioning part (632) is clamped into the positioning groove (341), the mounting part (631) is attached to the surface of the first guide plate (34), and the second displacement detector (61) is arranged on the mounting part (631).
5. The debugging equipment for the elevator progressive safety gear lifting mechanism according to claim 4, wherein the first driving piece (51) comprises a first torque motor (511), a first lead screw (512) is vertically movably arranged on the first torque motor (511), one side of the first lead screw (512) far away from the first torque motor (511) is sequentially provided with the tension detection piece (52), a joint bearing (53) and a retaining ring (54) detachably mounted on the joint bearing (53), and the retaining ring (54) is connected with the driving wedge block (31).
6. The debugging equipment for the elevator progressive safety gear lifting mechanism according to claim 1, wherein the second driving piece (71) comprises a second torque motor (711), a second screw rod (712) is vertically movably arranged on the second torque motor (711), the side, away from the second torque motor (711), of the second screw rod (712) is sequentially provided with the push-pull force detection piece (72) and a connecting plate (74), and the connecting plate (74) is connected to the bottom surface of the lower cross beam (24).
7. The elevator progressive safety gear lifting mechanism debugging equipment according to any one of claims 1 to 6, wherein a mounting frame (15) is arranged on the test bench (1), the control unit (8) comprises an electric control box body (81), the electric control box body (81) is arranged on the mounting frame (15), a PLC (programmable logic controller) and a torque controller which are in communication connection are arranged in the electric control box body (81), the torque controller is used for controlling the first driving piece (51) and the second driving piece (71) to output torque, and a human-computer interaction interface (82) and an emergency stop switch are arranged on the electric control box body (81).
8. A debugging method for a progressive safety gear lifting mechanism of an elevator is characterized in that the debugging equipment for the progressive safety gear lifting mechanism of the elevator is adopted for debugging according to any one of claims 1 to 7, and the debugging method comprises the following steps:
s1, controlling the first driving piece (51) to output lifting force, and detecting whether the displacement D1 of the driving wedge (31) of the first safety gear (3) and the displacement D2 of the driving wedge (31) of the second safety gear (4) exceed a specified range, wherein the first safety gear (3) is a speed limiter side safety gear;
s2, controlling the second driving piece (71) to output a push-pull force, and judging whether the driving wedge (31) and the driven wedge (32) have a safety clearance with the surface of the guide rail (11) or not on the premise that D1 and D2 are both in a specified range;
s3, controlling the first driving element (51) to output a pulling force so as to test the initial clamping force F First stage And determining the initial clamping force F First stage Whether the safety condition of the clamping force of the speed limiter is less than or equal to the safety condition of the clamping force of the speed limiter is met;
s4, controlling the first driving piece (51) to output linear lifting force, and judging whether the difference value between D2 and D1 is within a preset range so as to judge whether the inclination of the tested car frame (2) meets the requirement;
s5, controlling the first driving element (51) to output a lifting force and the second driving element (71) to output a pulling force, and detecting whether the displacement increment of the tested car frame (2) is 0.
9. The method for debugging the progressive safety gear lifting mechanism of an elevator according to claim 8,
in S2, by comparing the amount of change in the front-rear detection value of the push-pull force detector (72), it is determined whether the active wedge (31) and the passive wedge (32) are in contact with the surface of the guide rail (11);
in the S3, when the pulling force is increased but the displacement value is not increased in any one of D1 and D2, the detection value of the pulling force detection piece (52) is the initial clamping force F First stage 。
10. The debugging method of the progressive safety gear lifting mechanism of the elevator according to claim 8, wherein in the step S4, the step of controlling the first driving element (51) to output the linear lifting force sequentially comprises the following steps:
s41, increasing the pulling force to 0.5F First stage And holding for a time T1;
s42, pulling force is 0.5F First stage Increased to 0.7F First stage And holding for a time T2;
s43, pulling force is 0.7F First stage Increased to 0.9F First stage And holding for a time T3;
s44, pulling force is 0.9F Beginning of the design Increase to F First stage And held for time T4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210724118.3A CN114955773B (en) | 2022-06-23 | 2022-06-23 | Debugging equipment and debugging method for progressive safety tongs lifting mechanism of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210724118.3A CN114955773B (en) | 2022-06-23 | 2022-06-23 | Debugging equipment and debugging method for progressive safety tongs lifting mechanism of elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114955773A true CN114955773A (en) | 2022-08-30 |
| CN114955773B CN114955773B (en) | 2023-05-26 |
Family
ID=82965871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210724118.3A Active CN114955773B (en) | 2022-06-23 | 2022-06-23 | Debugging equipment and debugging method for progressive safety tongs lifting mechanism of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114955773B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117125570A (en) * | 2023-10-27 | 2023-11-28 | 菱王电梯有限公司 | Method, system, equipment and medium for installing and debugging elevator multi-linkage safety tongs |
| CN117303156A (en) * | 2023-11-17 | 2023-12-29 | 广东华辉电梯配件有限公司 | Safety tongs with limit structure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001002342A (en) * | 1999-06-21 | 2001-01-09 | Toshiba Elevator Co Ltd | Emergency stop device for elevator |
| CN202144416U (en) * | 2011-07-05 | 2012-02-15 | 河北东方富达机械有限公司 | Progressive safety gear |
| CN102942090A (en) * | 2012-12-04 | 2013-02-27 | 蒂森克虏伯家用电梯(上海)有限公司 | Safety tongs |
| CN105000446A (en) * | 2015-08-13 | 2015-10-28 | 卫小兵 | Device for preventing elevator car from moving accidentally |
| CN105668368A (en) * | 2016-04-06 | 2016-06-15 | 巨立电梯股份有限公司 | Device for detecting pulling force of safety tongs |
| CN107176523A (en) * | 2017-07-20 | 2017-09-19 | 广州日滨科技发展有限公司 | Elevator safety gear device to test platform and method of testing |
| CN207312863U (en) * | 2017-10-11 | 2018-05-04 | 肇庆富士通电梯有限公司 | A kind of dual-wedge synchronous safety pincers |
| WO2020110316A1 (en) * | 2018-11-30 | 2020-06-04 | 株式会社日立製作所 | Emergency stopping device |
| CN214733615U (en) * | 2021-05-14 | 2021-11-16 | 孟辉 | Novel elevator safety tongs |
| CN215710895U (en) * | 2021-08-30 | 2022-02-01 | 日立电梯（中国）有限公司 | Wedge block action detection device |
-
2022
- 2022-06-23 CN CN202210724118.3A patent/CN114955773B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001002342A (en) * | 1999-06-21 | 2001-01-09 | Toshiba Elevator Co Ltd | Emergency stop device for elevator |
| CN202144416U (en) * | 2011-07-05 | 2012-02-15 | 河北东方富达机械有限公司 | Progressive safety gear |
| CN102942090A (en) * | 2012-12-04 | 2013-02-27 | 蒂森克虏伯家用电梯(上海)有限公司 | Safety tongs |
| CN105000446A (en) * | 2015-08-13 | 2015-10-28 | 卫小兵 | Device for preventing elevator car from moving accidentally |
| CN105668368A (en) * | 2016-04-06 | 2016-06-15 | 巨立电梯股份有限公司 | Device for detecting pulling force of safety tongs |
| CN107176523A (en) * | 2017-07-20 | 2017-09-19 | 广州日滨科技发展有限公司 | Elevator safety gear device to test platform and method of testing |
| CN207312863U (en) * | 2017-10-11 | 2018-05-04 | 肇庆富士通电梯有限公司 | A kind of dual-wedge synchronous safety pincers |
| WO2020110316A1 (en) * | 2018-11-30 | 2020-06-04 | 株式会社日立製作所 | Emergency stopping device |
| CN214733615U (en) * | 2021-05-14 | 2021-11-16 | 孟辉 | Novel elevator safety tongs |
| CN215710895U (en) * | 2021-08-30 | 2022-02-01 | 日立电梯（中国）有限公司 | Wedge block action detection device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117125570A (en) * | 2023-10-27 | 2023-11-28 | 菱王电梯有限公司 | Method, system, equipment and medium for installing and debugging elevator multi-linkage safety tongs |
| CN117125570B (en) * | 2023-10-27 | 2024-01-23 | 菱王电梯有限公司 | Method, system, equipment and medium for installing and debugging elevator multi-linkage safety tongs |
| CN117303156A (en) * | 2023-11-17 | 2023-12-29 | 广东华辉电梯配件有限公司 | Safety tongs with limit structure |
| CN117303156B (en) * | 2023-11-17 | 2024-04-19 | 广东华辉电梯配件有限公司 | Safety tongs with limit structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114955773B (en) | 2023-05-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114955773B (en) | Debugging equipment and debugging method for progressive safety tongs lifting mechanism of elevator | |
| CN100445193C (en) | Elevator apparatus | |
| CN101585465B (en) | Checking procedure for speed detecting device of elevator cage | |
| EP2258650A2 (en) | Emergency braking system for an elevator | |
| KR20070120459A (en) | Method of checking lift braking equipment, a method for placing a lift installation in operation and equipment for carrying out placing in operation | |
| US20110283814A1 (en) | Apparatus for performing a loading test in an elevator system and method for performing such a loading test | |
| CN113581967A (en) | Elevator speed limiter safety gear linkage test detection method and system | |
| CN201622143U (en) | Device for measuring movement tension of speed limiter for elevator and movement tensile force of safety tongs | |
| CN114030962B (en) | Elevator non-load measuring instrument | |
| CN209117770U (en) | Floor truck electric drive trains Guided Missiles Service Test Set | |
| JP5907912B2 (en) | Elevator rail test apparatus and test method | |
| CN113720384B (en) | Glass lifter detection equipment | |
| CN214584086U (en) | Traction machine static load test bed | |
| CN113825716B (en) | Emergency stop device for elevator, and inspection device for emergency stop device for elevator | |
| KR102058189B1 (en) | Elevator safety plank reliability test apparatus | |
| CN210513737U (en) | Stair climbing machine test equipment | |
| CN110844737B (en) | Elevator speed limiter | |
| CN209367601U (en) | A kind of protection trigger device and the lift appliance using the protection trigger device | |
| CN209992162U (en) | Pantograph performance testing device | |
| CN110375969B (en) | Device for testing anti-hooking performance of grid grillwork | |
| JPS5917478A (en) | Method of inspecting balance device for elevator | |
| CN219469384U (en) | Elevator wire rope tensile force tester | |
| CN220982665U (en) | Elevator wheel test equipment | |
| CN114942094B (en) | Dynamic clamping force testing device and testing method for speed limiter | |
| CN217560930U (en) | Electric push rod fatigue test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |