CN113998556A - Speed limiter checking method and device calibration equipment and method - Google Patents
Speed limiter checking method and device calibration equipment and method Download PDFInfo
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- CN113998556A CN113998556A CN202111405394.5A CN202111405394A CN113998556A CN 113998556 A CN113998556 A CN 113998556A CN 202111405394 A CN202111405394 A CN 202111405394A CN 113998556 A CN113998556 A CN 113998556A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000004088 simulation Methods 0.000 claims description 11
- 238000012795 verification Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 12
- 241000209094 Oryza Species 0.000 description 10
- 235000007164 Oryza sativa Nutrition 0.000 description 10
- 235000009566 rice Nutrition 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/048—Testing of overspeed governor
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Abstract
The invention discloses a speed limiter checking method and device and a device calibration device and method. The invention can obtain the action speed of the speed limiter by testing the instantaneous linear speed at the middle diameter of the speed measuring wheel through the speed measuring encoder, thereby not only representing the action speed of the speed limiter truly and accurately, but also effectively solving the problems that the outer diameter of the rope wheel wound with the steel wire rope is inconvenient to measure and the middle diameter of the steel wire rope is more inconvenient to measure.
Description
Technical Field
The invention belongs to the field of elevator equipment, and particularly relates to a speed limiter checking method and device calibration equipment and method.
Background
The speed limiter is an important safety protection device for preventing the elevator from overspeed and falling. Whether the action speed of the elevator speed limiter meets the requirement directly relates to whether the safety performance of the elevator meets the requirement. According to regulations, a governor of an elevator should be checked periodically for a governor operating speed. Fig. 1 shows a method for checking a speed reducer in the prior art, a magnet 2 is attached to the outer side of a speed limiter rope wheel 4, the speed limiter rope wheel 4 is driven to rotate by driving a speed reducing motor 1, and the action speed of the speed limiter is tested by detecting the time required for one rotation through a first counting sensor 3. It is clear that this measure is the average rotational speed of the governor sheave 4. This rotational speed does not really represent the actual operating speed of the governor and is far from the actual operating speed of the governor, and therefore it has been a technical problem in the art how to verify the governor so that the obtained verification data most closely approximates the actual operating speed of the governor.
Disclosure of Invention
The invention aims to provide a speed limiter checking method and device and a device and method for calibrating the device, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the speed limiter checking method includes installing one speed measuring wheel in the annular rope groove of the speed limiter rope wheel, and measuring the instantaneous speed of the speed limiter via real-time measurement of the instantaneous speed of the speed measuring wheel.
Preferably, the governor sheave is driven by a tachometer wheel or is driven solely by external force.
The invention also provides a speed limiter calibration device, which is applied to the speed limiter calibration method and comprises a speed measuring wheel arranged in a tangent mode with the speed limiter rope wheel, wherein bulges matched with the annular rope grooves are formed at the edge of the speed measuring wheel in the radial direction and positioned in the annular rope grooves to be in rolling friction with the annular rope grooves, and a speed measuring encoder is fixedly connected to one side of the speed measuring wheel.
Preferably, the elevator further comprises a driving wheel, wherein the driving wheel is attached to the annular rope groove of the speed limiter rope pulley and is connected to the output end of the driving speed reduction motor in a driving mode.
The utility model provides a calibration equipment of overspeed governor calibration equipment, is applied to a overspeed governor calibration equipment that the above-mentioned, and this calibration equipment includes two overspeed governor simulation wheels and winds the rope that tests the speed of establishing on two overspeed governor simulation wheels, tests the speed the rope and is the same with the wire rope diameter of establishing on the overspeed governor rope sheave, adopts to set up in the rope straightway that tests the speed and carries out the calibration that tests the speed with speed wheel matched with meter rice ware.
Preferably, meter rice ware is plane pressure and touches meter rice ware, and it is including last wheelset and lower wheelset, goes up the wheelset and winds respectively on the wheelset down the conveyer belt, goes up the wheelset and all includes a action wheel and a follow driving wheel down, and the conveyer belt is convoluteed on action wheel and follow driving wheel, and action wheel and follow driving wheel all coaxial fixedly connected with the identical rope sheave of rope that tests the speed, the meter rice wheel of action wheel for being furnished with second count sensor that is located lower wheelset.
A calibration method of a speed limiter calibration device adopts the calibration equipment of the speed limiter calibration device, a plane press-contact meter device is placed on a straight line section of a speed measuring rope, rope wheels on an upper wheel set and a lower wheel set are matched with the speed measuring rope, a speed measuring wheel is matched with one speed limiter simulation wheel, the speed limiter simulation wheel is driven to rotate by external power or power of the speed measuring wheel, the speed measuring rope drives the plane press-contact meter device to work, and the speed indication value of the plane press-contact meter device is used for calibrating the elevator speed limiter calibration device.
Compared with the prior art, the invention provides a speed limiter calibration method and device and calibration equipment and method of the calibration device, and the method and device have the following beneficial effects:
(1) the speed measuring wheel is tangent to the rope wheel of the speed limiter, the radial bulge of the testing wheel is matched with the annular rope groove of the rope wheel of the speed limiter, and then the instantaneous linear speed at the middle diameter of the speed measuring wheel is tested through the speed measuring encoder, so that the action speed of the speed limiter can be obtained. The mode replaces the measurement of the linear speed of the middle diameter of the steel wire rope on the rope wheel of the speed limiter, the action speed of the speed limiter can be truly and accurately represented, and the problems that the outer diameter of the rope wheel wound with the steel wire rope is inconvenient to measure and the middle diameter of the steel wire rope is more inconvenient to measure can be effectively solved.
(2) Meanwhile, the plane piezotouch meter counter is matched with a speed measuring wheel in the checking equipment, and the elevator speed limiter checking device can be calibrated through the speed indication value of the plane piezotouch meter counter.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:
fig. 1 is a schematic diagram of a device for checking the action speed of a speed limiter in the prior art;
fig. 2 is a schematic diagram of a device for checking the speed limiter action speed in the application;
fig. 3 is a schematic view of the assembly of the governor calibration apparatus in operation;
FIG. 4 is a schematic structural view of a flat contact meter counter in an embodiment;
FIG. 5 is a schematic sectional view of a tachometer wheel according to an embodiment.
In the figure: 1. driving a gear motor; 2. a magnet; 3. a first counting sensor; 4. a governor sheave; 5. an annular rope groove; 6. a speed measuring wheel; 7. a protrusion; 8. a speed measuring encoder; 9. a drive wheel; 10. a speed measuring rope; 11. a plane pressure-contact meter counter; 12. an upper wheel set; 13. a lower wheel set; 14. a conveyor belt; 15 speed limiter simulation wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2 to 4, this embodiment provides a speed governor checking device and a method for checking by using the same, where the checking device includes a speed measurement wheel 6 disposed tangentially to a speed governor rope sheave 4, a protrusion 7 matched with an annular rope groove 5 is formed at a radial edge of the speed measurement wheel 6, the protrusion 7 is located in the annular rope groove 5 and is in rolling friction therewith, a speed measurement encoder 8 is fixedly connected to one side of the speed measurement wheel 6, an instantaneous linear velocity at a middle diameter of the speed measurement wheel 6 is measured by the speed measurement encoder 8, and the instantaneous linear velocity at the middle diameter of the speed measurement wheel 6 is measured by the speed measurement encoder 8, which is in the prior art and will not be described herein. Because the radial bulge 7 of the speed measuring wheel 6 is matched with the annular rope groove 5 of the speed governor rope wheel 4, the instantaneous linear speed of the middle diameter of the speed measuring wheel 6 is closest to the action speed of the speed governor rope wheel 4, and the test result is most accurate. At this time, the pitch diameter of the speed measuring wheel 6 is matched with the pitch diameter position of the steel wire rope wound on the speed governor rope wheel 4.
When the verifying device is used for verifying the action speed of the speed limiter, firstly, the speed measuring wheel 6 with the bulge 7 is arranged at the annular rope groove 5 of the speed limiter rope wheel 4, and the bulge 7 is matched with the annular rope groove 5, as shown in figure 5, the cross section of the bulge 7 is of a semicircular structure, the circle center of the semicircular structure is the middle diameter position of the speed measuring wheel 6, and the circle center is also the middle diameter position of a steel wire rope wound on the speed limiter rope wheel 4. Then, the speed measuring wheel 6 drives the speed governor rope wheel 4 to rotate, and the speed measuring encoder 8 works to detect the intermediate diameter instantaneous linear speed of the speed measuring wheel 6, so that the instantaneous action speed of the speed governor can be obtained.
In addition, the calibration device in this application still includes the drive wheel 9 with the same shape of tachometer wheel 6, and drive wheel 9 is laminated in the annular grooving 5 of overspeed governor rope sheave 4 and drive connection drives the output that drives gear motor 1, drives gear motor 1 action drive wheel 9 and rotates, and then drives overspeed governor rope sheave 4 and rotates. Since the drive pulley 9 requires a certain driving force when the speed governor sheave 4 is driven to operate at a high speed, and the drive pulley 9 is deformed and changed in size, it is necessary to provide the speed measurement wheel 6 and the drive pulley 9 separately, that is, it is preferable to drive the speed governor sheave 4 to rotate by using a separate drive pulley 9.
When the speed governor calibration device detects out that the speed governor action speed is not conform to the requirements, just need to calibrate the speed governor calibration device, therefore this application still provides a calibration equipment of speed governor calibration device, this calibration equipment includes two speed governor simulation wheels 15 and around establishing the rope 10 that tests the speed on two speed governor simulation wheels 15, it is the same with the wire rope diameter of establishing around on the speed governor rope sheave 4 to test the speed rope 10, adopt and press the meter rice ware 11 with the plane of speed measurement wheel 6 matched with, it sets up in the rope 10 straightway that tests the speed when using.
Specifically, plane pressure touches meter rice ware 11 in this embodiment is including last wheelset 12 and lower wheelset 13, go up and have wound confined conveyer belt 14 on wheelset 12 and the lower wheelset 13 respectively, go up wheelset 12 and lower wheelset 13 and all include a action wheel and a follow driving wheel, conveyer belt 14 is convoluteed on action wheel and follow driving wheel, action wheel and follow driving wheel equal coaxial fixedly connected with rope sheave that the rope 10 is tested the speed identical, the meter rice wheel of action wheel for being furnished with second count sensor that is located on lower wheelset 13, second count sensor notes the required time of action wheel rotation round in wheelset 13, finally reachs the instantaneous linear velocity when the rope 10 that tests the speed through the action wheel.
When the calibration equipment of adopting above-mentioned overspeed governor calibration equipment carries out the calibration, plane pressure touches meter rice ware 11 and places the straightway at the rope 10 that tests the speed, go up the rope sheave on wheelset 12 and the lower wheelset 13 and coincide with the rope 10 that tests the speed, it is identical with overspeed governor rope sheave 4 to test the speed wheel 6, it is rotatory to drive overspeed governor rope sheave 4 through external power or the power of speed wheel 6 oneself, it drives plane pressure and touches meter rice ware 11 work to test the speed rope 10, with the speed indicating value of plane pressure touch meter rice ware 11, calibrate for the elevator overspeed governor calibration equipment.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The speed limiter checking method is characterized by comprising the following steps: a speed measuring wheel (6) which is matched with the annular rope groove (5) of the speed governor rope wheel (4) is arranged at the position of the annular rope groove (5), the pitch diameter of the speed measuring wheel (6) is matched with the pitch diameter of a steel wire rope wound on the speed governor rope wheel (4), and the instantaneous action speed of the speed governor is obtained by testing the instantaneous linear speed of the pitch diameter of the speed measuring wheel (6) in real time.
2. The speed limiter verification method according to claim 1, characterized in that: the speed governor rope wheel (4) is driven by the speed measuring wheel (6) or is driven by external force independently.
3. A speed governor checking device applied to the speed governor checking method of claim 1 or 2, characterized in that: including tachometry wheel (6) with tangent setting up of overspeed governor rope sheave (4), radial edge of tachometry wheel (6) is formed with arch (7) identical with annular grooving (5) to arch (7) are located annular grooving (5) and rolling friction with it, and one side fixedly connected with of tachometry wheel (6) moves speed encoder (8).
4. A speed governor checking apparatus in accordance with claim 3, wherein: the driving device is characterized by further comprising a driving wheel (9), wherein the driving wheel (9) is attached to the speed limiter rope wheel (4) and is in driving connection with the output end of the driving speed reduction motor (1).
5. A calibration device of a speed limiter verification device, which is applied to the speed limiter verification device of claim 3 or 4, wherein: the calibration equipment comprises two speed governor simulation wheels (15) and a speed measuring rope (10) wound on the two speed governor simulation wheels (15), wherein the diameter of the speed measuring rope (10) is the same as that of a steel wire rope wound on a speed governor rope wheel (4), and the speed measuring calibration is carried out by adopting a meter counter which is arranged on a straight line section of the speed measuring rope (10) and matched with a speed measuring wheel (6).
6. The calibration device of the speed limiter verification device according to claim 5, wherein: the meter counter is plane pressure touch meter counter (11), it is including last wheelset (12) and lower wheelset (13), go up wheelset (12) and lower wheelset (13) and go up respectively around having confined conveyer belt (14), go up wheelset (12) and lower wheelset (13) and all include a action wheel and a follow driving wheel, conveyer belt (14) are convoluteed on action wheel and follow driving wheel, action wheel and follow driving wheel equal coaxial fixedly connected with the rope sheave that tests the speed rope (10) identical, the meter counter wheel that is equipped with second count sensor is located the action wheel on lower wheelset (13).
7. A calibration method of a speed limiter calibration device, which uses the calibration apparatus of a speed limiter calibration device according to claim 6, characterized in that: the plane pressure-sensitive meter counter (11) is placed on a straight line segment of a speed measuring rope (10), a rope wheel on an upper wheel set (12) and a lower wheel set (13) is matched with the speed measuring rope (10), a speed measuring wheel (6) is matched with one speed limiter simulation wheel (15), the speed limiter simulation wheel (15) is driven to rotate through external power or power of the speed measuring wheel (6), the speed measuring rope (10) drives the plane pressure-sensitive meter counter (11) to work, a speed indicating value of the plane pressure-sensitive meter counter (11) is used, and an elevator speed limiter checking device is calibrated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111405394.5A CN113998556A (en) | 2021-11-24 | 2021-11-24 | Speed limiter checking method and device calibration equipment and method |
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| CN202111405394.5A CN113998556A (en) | 2021-11-24 | 2021-11-24 | Speed limiter checking method and device calibration equipment and method |
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2021
- 2021-11-24 CN CN202111405394.5A patent/CN113998556A/en active Pending
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