CN217051173U - Speed limiter calibration device and device calibration equipment - Google Patents
Speed limiter calibration device and device calibration equipment Download PDFInfo
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- CN217051173U CN217051173U CN202122901722.2U CN202122901722U CN217051173U CN 217051173 U CN217051173 U CN 217051173U CN 202122901722 U CN202122901722 U CN 202122901722U CN 217051173 U CN217051173 U CN 217051173U
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Abstract
The utility model discloses a overspeed governor calibration equipment and device calibration equipment installs one identical tachometry wheel with it in the annular grooving department of overspeed governor rope sheave, and the pitch diameter of tachometry wheel is identical with wire rope's pitch diameter, and the instantaneous action speed of overspeed governor is obtained through the instantaneous linear velocity of the pitch diameter of real-time test tachometry wheel. The utility model discloses a speed encoder test tachometer wheel middlings footpath department's instantaneous linear velocity can obtain the action speed of overspeed governor, can be true accurate action speed of representing the overspeed governor, again can effectual solution around establishing wire rope's rope sheave external diameter measurement inconvenient, wire rope's more inconvenient problem of middlings footpath measurement.
Description
Technical Field
The utility model belongs to the elevator equipment field, concretely relates to overspeed governor check square device and device calibration equipment.
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 for an elevator is required to periodically check the operation speed of the governor. Fig. 1 shows a method for verifying a speed reducer in the prior art, wherein a magnet 2 is adhered to the outer side of a speed limiter rope pulley 4, the speed limiter rope pulley 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. The rotating speed cannot really represent the real operating speed of the speed limiter and is far from the real operating speed of the speed limiter, so that how to verify the speed limiter to enable the obtained verification data to be closest to the real operating speed of the speed limiter is a technical problem in the field.
Disclosure of Invention
An object of the utility model is to provide a overspeed governor calibration device and device calibration equipment to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a speed limiter calibration device is applied to a speed limiter calibration method and comprises a speed measuring wheel arranged in a tangent mode with a speed limiter rope wheel, wherein bulges matched with annular rope grooves are formed in the edge of the speed measuring wheel in the radial direction, the bulges are located in the annular rope grooves and are 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 with the output end of the driving speed reduction motor in a driving mode.
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 utility model provides a calibration equipment of overspeed governor calibration equipment, is applied to a overspeed governor calibration equipment that above-mentioned mentions, this calibration equipment include two overspeed governor simulation wheels and around establishing the rope that tests the speed on two overspeed governor simulation wheels, tests the speed the rope and is the same with the wire rope diameter of establishing around 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 tachometer 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 utility model provides a calibration equipment of calibration equipment and calibration equipment of overspeed governor possesses following beneficial effect:
(1) the utility model discloses a tachometer wheel is tangent in the overspeed governor rope sheave, and the radial ascending arch of test wheel is identical with the annular rope groove of overspeed governor rope sheave, then can obtain the action speed of overspeed governor through the instantaneous linear velocity of tachometer encoder test tachometer wheel pitch diameter department. 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) And simultaneously the utility model discloses a speed measuring wheel in plane pressure contact meter rice ware and the check-up equipment cooperatees, and the speed indication value of accessible plane pressure contact meter rice ware calibrates elevator overspeed governor calibration equipment.
Drawings
The accompanying drawings 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, do not constitute a limitation of 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 verifying the speed governor operating speed in the present application;
fig. 3 is a schematic view of the governor calibration apparatus assembled in operation;
FIG. 4 is a schematic structural view of a flat contact length 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 speed governor sheave; 5. an annular rope groove; 6. a tachometer 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as 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 invention, as 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. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to 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 checking device in the application also comprises a driving wheel 9 with the same shape as the speed measuring wheel 6, the driving wheel 9 is attached in the annular rope groove 5 of the speed limiter rope wheel 4 and is connected with the output end of the driving speed reducing motor 1 in a driving mode, the driving speed reducing motor 1 operates to drive the driving wheel 9 to rotate, and then the speed limiter rope wheel 4 is driven to rotate. 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 press-touch meter rice ware 11 in this embodiment is including last wheelset 12 and lower wheelset 13, go up respectively around having confined conveyer belt 14 on wheelset 12 and the lower wheelset 13, 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 the action wheel and follows the driving wheel, action wheel and the equal coaxial fixedly connected with rope sheave that tests the speed rope 10 of following the driving wheel, the meter rice wheel that is equipped with second count sensor of action wheel that is located on lower wheelset 13, the second count sensor notes the required time of action wheel rotation round in the wheelset 13, finally reachs the instantaneous linear velocity when testing the speed rope 10 and passing 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 present 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 (4)
1. The utility model provides a overspeed governor calibration equipment which 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).
2. A speed limiter verification device in accordance with claim 1, wherein: the driving device is characterized by further comprising a driving wheel (9), wherein the driving wheel (9) is attached to the speed governor rope wheel (4) and is in driving connection with the output end of the driving speed reduction motor (1).
3. A calibration device of a speed limiter verification device, which is applied to the speed limiter verification device of claim 1 or 2, and is characterized in that: 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).
4. A calibration apparatus for a speed limiter verification device as claimed in claim 3, 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122901722.2U CN217051173U (en) | 2021-11-24 | 2021-11-24 | Speed limiter calibration device and device calibration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122901722.2U CN217051173U (en) | 2021-11-24 | 2021-11-24 | Speed limiter calibration device and device calibration equipment |
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| CN217051173U true CN217051173U (en) | 2022-07-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998556A (en) * | 2021-11-24 | 2022-02-01 | 河南大亘计量检测研究院有限公司 | Speed limiter checking method and device calibration equipment and method |
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2021
- 2021-11-24 CN CN202122901722.2U patent/CN217051173U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998556A (en) * | 2021-11-24 | 2022-02-01 | 河南大亘计量检测研究院有限公司 | Speed limiter checking method and device calibration equipment and method |
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