CN210001366U - roller speed measuring device - Google Patents
roller speed measuring device Download PDFInfo
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- CN210001366U CN210001366U CN201920505972.4U CN201920505972U CN210001366U CN 210001366 U CN210001366 U CN 210001366U CN 201920505972 U CN201920505972 U CN 201920505972U CN 210001366 U CN210001366 U CN 210001366U
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- roller
- gyro wheel
- guide rail
- center
- speed
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Abstract
The utility model belongs to the technical field of elevator equipment, concretely relates to gyro wheel speed sensor, include two at least gyro wheels that match with the elevator guide rail, be gyro wheel and second gyro wheel respectively, third gyro wheel and second gyro wheel are located the both sides of guide rail respectively, the distance of gyro wheel centre of a circle to the guide rail is less than gyro wheel radius, the distance of second gyro wheel centre of a circle to the guide rail is less than second gyro wheel radius, it has the structure of testing the speed to have at least gyro wheels in gyro wheel and the second gyro wheel, the utility model discloses a gyro wheel speed sensor sets up two gyro wheels in elevator guide rail both sides and applys definite precompression, makes the gyro wheel cooperate with the guide rail all the time and do not break away from the track, effectively avoids the gyro wheel to break away from the cooperation with the elevator guide rail, has the structure of testing the speed in the gyro wheel, and speed measurement is more.
Description
Technical Field
The utility model belongs to the technical field of elevator equipment, concretely relates to gyro wheel speed sensor.
Background
The elevator speed limiter monitors and controls the speed of the elevator car at any time, can send out signals in time when an over-speed condition occurs, then generates mechanical action to cut off a power supply circuit or trigger other safety devices to brake the elevator car, and is which is a safety control part in an elevator safety protection system.
Elevator overspeed governor theory of operation matches through the overspeed governor with the same thing of referring to of car motion state, for example the hold-in range, wire rope, guide rail etc, thereby drive the overspeed governor and rotate the motion state that detects the car, current overspeed governor adopts the hold-in range, wire rope's cooperation is more, but in the continuous promotion along with the elevator floor, adopt the hold-in range, the hold-in range can appear in wire rope's overspeed governor, the wire rope overlength, it is extremely inconvenient to install, and hold-in range or wire rope can rock the influence car, also higher to the requirement of tight device that rises, and relative hold-in range of guide rail and wire rope, the guide rail is in fixed state, high stability, therefore cooperation gyro wheel replaces the hold-in range, wire rope.
To above technical problem, propose neotype gyro wheel speed sensor.
SUMMERY OF THE UTILITY MODEL
Based on the above-mentioned not enough that exists among the prior art, the utility model provides an kinds of gyro wheel speed sensor.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:
roller speed measurement devices, including with the at least two gyro wheels that the elevator guide rail matches, be gyro wheel and second gyro wheel respectively, gyro wheel and second gyro wheel are located the both sides of guide rail respectively, the distance of gyro wheel centre of a circle to the guide rail is less than gyro wheel radius, the distance of second gyro wheel centre of a circle to the guide rail is less than second gyro wheel radius, at least gyro wheels have the structure of testing the speed in gyro wheel and the second gyro wheel.
Preferably, the center of the th roller and the center of the second roller are located on the same plane perpendicular to the guide rail.
Preferably, the center of the th roller and the center of the second roller are located on the same straight line perpendicular to the guide rail.
Preferably, the th roller radius is the same as the second roller radius.
Preferably, the distance from the center of the th roller to the side surface is equal to the distance from the center of the second roller to the side surface.
Preferably, the roller speed measuring device further comprises a base and a swing connecting portion, the swing connecting portion is used for fixedly connecting the th roller and the second roller, and the swing connecting portion is connected to the base in a swing mode.
Preferably, the th roller has a mechanical and/or electronic speed measuring structure, and the second roller has a mechanical and/or electronic speed measuring structure.
Preferably, the th roller surface and the second roller surface are respectively provided with an elastic ring.
Compared with the prior art, the utility model, beneficial effect is: the utility model discloses a detection of guide rail as car operation speed limit saves wire rope, hold-in range, and speed sensor sets up two gyro wheels in elevator guide rail both sides, makes the gyro wheel all the time with the guide rail cooperation and not break away from the track, makes speed measurement more accurate, and the synchronism is better, reinforcing elevator safety arrangement's validity.
Drawings
Fig. 1 is a schematic view of an overall structure of a roller speed measuring device according to embodiment of the present invention;
fig. 2 is a schematic view of a base and a swing connection portion of a roller velocity measurement device according to an embodiment of the present invention.
The device comprises a guide rail A, a first roller, a second roller, a swing connecting part 3 and a base 4.
Detailed Description
It is apparent that the drawings in the following description are only examples of of the present invention, and other drawings and embodiments can be obtained by those skilled in the art without inventive effort.
Example :
as shown in fig. 1-2, the roller speed measurement device of this embodiment is used in the process that the roller speed governor is matched with the elevator guide rail a, and avoids the risk of derailing of the speed governor, and includes th roller 1 and second roller 2 that are matched with the elevator guide rail a, th roller 1 and second roller 2 are respectively located on both sides of the guide rail a, and apply fixed pre-pressure to th roller 1 and second roller 2, so that th roller 1 and second roller 2 are always in contact with the guide rail a, and avoid derailing, wherein at least of th roller 1 and second roller 2 have speed measurement structures.
Specifically, a roller 1 and a second roller 2 are fixed on a car through a base 4 and a swing connecting portion 3 and are respectively matched with two side guide surfaces of an elevator guide rail A, so that the distance from the center of a circle of a roller 1 to the side guide surface of the guide rail A where the 0 roller 1 is located is smaller than the radius of the roller 1, the distance from the center of a circle of the second roller 2 to the side guide surface of the guide rail A where the second roller is located is smaller than the radius of the second roller 2, at this time, a precompression force exists between the th roller 1 and the side of the elevator guide rail A, a precompression force exists between the second roller 2 and the side of the elevator guide rail A, the directions of the two precompression forces are opposite, under the action of the two opposite precompression forces, a th roller speed limit and the second roller 2 can be tightly matched with the guide rail A, compared with a single roller matched with the guide rail A, a rigid contact exists between the roller matched with the roller, the roller and the roller is separated from the roller and matched with the guide rail A, when the elevator car moves, the elevator car cannot be matched with the roller A, the roller 2 is located on a swing linear connection portion of the swing supporting portion of the swing of the roller 14, the roller 14, the roller is located on the swing of the swing fixing base, the roller, the swing of the swing connecting portion of the roller 2, the roller 2, the roller is located on the swing fixing base, the swing fixing portion of the swing fixing base, the roller.
The distance from the center of the circle of the th roller 1 to the guide rail A is equal to the distance from the center of the circle of the th roller 1 to the side, the installation precision is convenient to control, the mutual acting force of two pre-pressures tends to be balanced, the loss of the two rollers tends to be synchronous, and the later debugging and maintenance are convenient.
gyro wheel 1 has the machinery structure of testing the speed for example centrifugal mechanism cooperation trigger mechanism in, it for example is used for measuring the encoder and the trigger mechanism of gyro wheel rotational speed to have the electron structure of testing the speed for example in the second gyro wheel 2, two gyro wheel overspeed governor trigger mechanism linkage connection lifting device or arresting gear, adopt redundant formula design, detect elevator car running state preferred, gyro wheel surface and second gyro wheel surface are equipped with the elastic ring respectively, the material can select for use rubber, silica gel etc. reduces the friction loss when gyro wheel and guide rail A cooperate.
It should be noted that, because the roller has a width and a thickness, in the present application, the center of the roller refers to the center of the roller at the center point of the contact surface where the roller is matched with the guide rail a. if the th roller surface and the second roller surface are respectively provided with an elastic ring, the st roller 1 radius and the second roller 2 radius include the thickness of the elastic ring.
The utility model discloses a gyro wheel speed sensor sets up two gyro wheels in elevator guide rail A both sides and applys pre-pressure fixed, makes the gyro wheel all the time with guide rail A cooperation and not break away from the track, effectively avoids the gyro wheel to break away from with elevator guide rail A's cooperation, has the structure of testing the speed in the gyro wheel, and speed measurement is more accurate, and the synchronism is better, adopts redundant formula design, reinforcing elevator safety arrangement's validity.
Example two:
the difference between this embodiment and the roller speed measuring device of embodiment is that:
the center of the second roller and the center of the first roller are on the same plane perpendicular to the guide rail and not on the same line compared with embodiment , the center of the roller and the center of the second roller can be arranged in a front-back staggered mode at the same height of the guide rail , and the corresponding structure is selected according to field installation conditions.
Other structures refer to example .
Example three:
the difference between this embodiment and the roller speed measuring device of embodiment is that:
the center of the roller and the center of the second roller are not on the same plane vertical to the guide rail comparing with , the center of the roller and the center of the second roller can be arranged at different heights of the guide rail, the corresponding structure is selected according to the field installation condition.
Other structures refer to example .
Example four:
the difference between this embodiment and the roller speed measuring device of embodiment is that:
roller radius is different from the second roller radius, and different roller radii limit the roller speed respectively according to the actual speed limit requirement of the car, compare embodiment , select corresponding structure according to the on-the-spot installation condition.
Other structures refer to example .
Example five:
the difference between this embodiment and the roller speed measuring device of embodiment is that:
the distance from the center of the roller to the side surface is not equal to the distance from the center of the roller to the side surface, and the distance is adapted according to the actual roller material comparing with the embodiment , the distance from the center of each roller to the side surface is not limited.
Other structures refer to example .
Example six:
the difference between this embodiment and the roller speed measuring device of embodiment is that:
the base and the swing connecting part can be omitted, and the th roller and the second roller are directly fixed on the car through the mounting frame, so that the structure is simplified compared with the embodiment .
Other structures refer to example .
Example seven:
the difference between this embodiment and the roller speed measuring device of embodiment is that:
the th roller is internally provided with an electronic speed measuring structure, the second roller is internally provided with a mechanical speed measuring structure, the th roller is internally provided with no speed measuring structure, the second roller is internally provided with no speed measuring structure, the combination mode of the speed measuring structures in the two rollers can be a double-mechanical type, a double-electronic type and the like, the th roller is internally provided with an electronic speed measuring structure, and the second roller is internally provided with a mechanical speed measuring structure.
Other structures refer to example .
Example eight:
the difference between this embodiment and the roller speed measuring device of embodiment is that:
the roller side and/or the second roller side can be added with a plurality of rollers, the rollers in the plurality of rollers can be provided with speed limiting mechanisms as the standby or be provided with multi-stage speed limiting, compared with the embodiment , the number of rollers is not limited, and the plurality of rollers are provided with the functions of standby or multi-stage speed limiting.
Other structures refer to example .
It should be noted that the above embodiments can be freely combined as necessary. The foregoing has been a detailed description of the preferred embodiments and principles of the present invention, and it will be apparent to those skilled in the art that variations may be made in the specific embodiments based on the concepts of the present invention, and such variations are considered as within the scope of the present invention.
Claims (7)
- The roller speed measuring device is characterized by comprising at least two rollers matched with an elevator guide rail, namely a th roller and a second roller, wherein the th roller and the second roller are respectively positioned on two sides of the guide rail, the distance from the center of the th roller to the guide rail is less than the radius of a th roller, the distance from the center of the second roller to the guide rail is less than the radius of the second roller, and at least rollers in the th roller and the second roller are provided with speed measuring structures.
- 2. The roller speed measurement device of claim 1, wherein the roller center of circle and the second roller center of circle are on the same plane perpendicular to the guide rail.
- 3. The roller speed measurement device of claim 2, wherein the roller center and the second roller center are on the same line perpendicular to the rail.
- 4. The roller speed measurement device of claim 3, wherein the roller radius is the same as the second roller radius.
- 5. The roller speed measurement device of claim 4, wherein the distance from the center of the roller to the side is equal to the distance from the center of the second roller to the side.
- 6. The roller speed measurement device of claim 5, wherein the roller speed measurement device further comprises a base and a swing connection portion, the swing connection portion is used for fixedly connecting the roller and the second roller, and the swing connection portion is swing-connected to the base.
- 7. The roller speed measurement device of any one of claims 1-6 and wherein the th roller has mechanical and/or electrical speed measurement structure and the second roller has mechanical and/or electrical speed measurement structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920505972.4U CN210001366U (en) | 2019-04-15 | 2019-04-15 | roller speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920505972.4U CN210001366U (en) | 2019-04-15 | 2019-04-15 | roller speed measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210001366U true CN210001366U (en) | 2020-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920505972.4U Active CN210001366U (en) | 2019-04-15 | 2019-04-15 | roller speed measuring device |
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| Country | Link |
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| CN (1) | CN210001366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020211662A1 (en) * | 2019-04-15 | 2020-10-22 | 杭州沪宁电梯部件股份有限公司 | Roller speed measuring apparatus |
-
2019
- 2019-04-15 CN CN201920505972.4U patent/CN210001366U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020211662A1 (en) * | 2019-04-15 | 2020-10-22 | 杭州沪宁电梯部件股份有限公司 | Roller speed measuring apparatus |
| CN111824893A (en) * | 2019-04-15 | 2020-10-27 | 杭州沪宁电梯部件股份有限公司 | Roller speed measuring device |
| CN111824893B (en) * | 2019-04-15 | 2024-05-24 | 杭州沪宁电梯部件股份有限公司 | Roller speed measuring device |
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