CN111913003A - Shaft rotating speed measuring device - Google Patents
Shaft rotating speed measuring device Download PDFInfo
- Publication number
- CN111913003A CN111913003A CN202010679017.XA CN202010679017A CN111913003A CN 111913003 A CN111913003 A CN 111913003A CN 202010679017 A CN202010679017 A CN 202010679017A CN 111913003 A CN111913003 A CN 111913003A
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- Prior art keywords
- laser
- ring
- measuring device
- baffle
- speed measuring
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- 238000005259 measurement Methods 0.000 claims abstract 2
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to the technical field of measuring equipment, and discloses a shaft rotating speed measuring device which comprises a measuring instrument and a baffle ring annularly arranged on a rotating shaft, wherein a laser through hole is formed in the baffle ring, the measuring instrument comprises a laser transmitter, a laser receiver, an installation frame, a connection frame and a main controller, the laser transmitter and the laser receiver are both arranged on the installation frame, the laser transmitter is opposite to the laser receiver, a baffle ring passageway is formed between the laser transmitter and the laser receiver, a laser beam emitted by the laser transmitter is vertical to a speed measuring direction, the installation frame is arranged on the connection frame, the connection frame is fixedly arranged, and the laser transmitter and the laser receiver are respectively and electrically connected with the main controller; the invention can realize high rotating speed measurement precision and stable transmission performance.
Description
Technical Field
The invention relates to the technical field of measuring equipment, in particular to a shaft rotating speed measuring device.
Background
Because the ship host computer does not have independent power monitoring system, its power monitoring relies on the rotational speed signal of external rotational speed sensor transmission on the axle, obtains the host computer power through the host computer built-in procedure carries out the conversion, after the rotational speed sensor on the axle breaks down, can lead to the host computer power to make mistakes.
At present, a rotating speed sensor on a ship measures the rotating speed in the following mode: the inner circle is bluetooth emitter, is fixed in epaxially, and the shell is for being fixed in the bluetooth receiver of a department, and when the bearing rotated, bluetooth emitter followed the bearing and rotated, when changeing the bluetooth receiver position, sent bluetooth signal, and the bluetooth receiver received behind the bluetooth signal and converts into the rotational speed value through software. Because the unable external power supply on the axle, consequently the bluetooth transmitter is built-in battery usually, needs often to change the battery, and bluetooth signal precision and transmission distance have certain limitation simultaneously, can cause the signal to lose usually, under this kind of condition, are difficult to guarantee measuring result's accuracy nature.
Disclosure of Invention
The invention aims to provide a shaft rotating speed measuring device with high rotating speed measuring precision and stable transmission performance.
In order to achieve the purpose, the invention provides a shaft rotating speed measuring device which comprises a measuring instrument and a baffle ring annularly arranged on a rotating shaft, wherein a laser through hole is formed in the baffle ring, the measuring instrument comprises a laser transmitter, a laser receiver, a mounting frame, a connecting frame and a main controller, the laser transmitter and the laser receiver are both arranged on the mounting frame, the laser transmitter is opposite to the laser receiver, a baffle ring passageway is formed between the laser transmitter and the laser receiver, a laser beam emitted by the laser transmitter is vertical to a speed measuring direction, the mounting frame is arranged on the connecting frame, the connecting frame is fixedly arranged, and the laser transmitter and the laser receiver are respectively and electrically connected with the main controller.
As a preferable scheme of the present invention, the baffle ring includes a first semicircular ring and a second semicircular ring, both the first semicircular ring and the second semicircular ring include a mounting plate that is matched with the shape of the rotating shaft and a baffle plate that is fixedly arranged on the mounting plate, the mounting plate of the first semicircular ring and the mounting plate of the second semicircular ring are connected with the rotating shaft through a bolt, and the laser via hole is arranged on the first semicircular ring or/and the second semicircular ring.
As a preferable scheme of the present invention, the baffle plate of the first semicircular ring and the baffle plate of the second semicircular ring are uniformly provided with one or more laser via holes at intervals.
As a preferable aspect of the present invention, a connection baffle is provided between the baffle of the first semicircular ring and the baffle of the second semicircular ring.
As a preferable scheme of the invention, the protective cover is arranged on the baffle ring and the baffle ring passage.
In a preferred embodiment of the present invention, one or more of the laser transmitter and the laser receiver are provided.
As a preferable aspect of the present invention, the mounting bracket is connected to the connecting bracket by a bolt.
In a preferred embodiment of the present invention, the retainer ring is mounted on a main engine shaft of the ship.
Compared with the prior art, the shaft rotating speed measuring device provided by the embodiment of the invention has the beneficial effects that:
in the embodiment of the invention, the baffle ring and the rotating shaft synchronously rotate, the laser beam emitted by the laser emitter is shielded by the baffle ring, the laser receiver cannot receive the laser beam, and no signal is generated, when the laser generating point of the laser emitter, the laser via hole on the baffle ring and the laser receiving point of the laser receiver are positioned on the same straight line, the laser irradiates the laser receiver through the laser via hole, the laser receiver receives the laser and generates a signal to be transmitted to the main controller, and the main controller processes the signal so as to acquire the rotating speed of the rotating shaft; the baffle ring can pass through the baffle ring passageway, so that the baffle ring is not in direct contact with the measuring instrument, the normal operation of the rotating shaft is prevented from being influenced, the measuring instrument cannot deviate, the measuring instrument can be externally connected with a power supply, the service life of the measuring instrument is ensured to be long, and the maintenance is convenient; in addition, the divergence of the laser is extremely small, and the stable transmission performance is ensured; therefore, the rotating speed measuring device is high in rotating speed measuring precision and stable in transmission performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
FIG. 1 is a schematic structural diagram of a shaft speed measuring device provided by the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural view of another embodiment of a shaft speed measuring device;
in the figure, 1 is a rotating shaft; 2 is a baffle ring; 21 is a mounting plate; 22 is a baffle plate; 3 is a laser via hole; 4 is a laser transmitter; 5 is a laser receiver; 6 is a mounting frame; 7 is a connecting frame; 8 is a master controller; 9 is a baffle ring passageway; and 10 is a protective cover.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
As shown in fig. 1 and fig. 2, a shaft rotation speed measuring device according to a preferred embodiment of the present invention includes a measuring instrument and a baffle ring 2 annularly disposed on a rotating shaft 1, the baffle ring 2 is mounted on the rotating shaft 1 of a main engine of a ship, the baffle ring 2 is provided with a laser via hole 3, a hole diameter of the laser via hole 3 is adjusted according to a size of a laser beam, the measuring instrument includes a laser transmitter 4, a laser receiver 5, a mounting frame 6, a connecting frame 7 and a main controller 8, the laser transmitter 4 and the laser receiver 5 are both mounted on the mounting frame 6, the laser transmitter 4 is opposite to the laser receiver 5, a baffle ring passageway 9 is formed between the laser transmitter 4 and the laser receiver 5, the laser beam emitted by the laser transmitter 4 is perpendicular to a speed measuring direction, the mounting frame 6 is mounted on the connecting frame 7, the connecting frame 7 is fixedly disposed, the connecting frame 7 is welded on a ship, and the laser transmitter 4 and the laser receiver 5 are respectively and electrically connected with the main controller 8.
Exemplarily, keep off ring 2 including first semicircle ring and second semicircle ring, first semicircle ring and second semicircle ring all include with 1 shape complex mounting panel 21 of pivot and set firmly the baffle 22 at mounting panel 21, the mounting panel 21 of first semicircle ring with the mounting panel 21 of second semicircle ring is connected with pivot 1 through the bolt, laser via hole 3 sets up on first semicircle ring or the second semicircle ring, keep off ring 2 and divide into first semicircle ring and second semicircle ring two parts, conveniently keep off the installation and the dismantlement of ring 2, first semicircle ring and second semicircle ring pass through the bolt fastening on pivot 1 moreover, guarantee its installation stability, avoid pivot 1 to take place first semicircle ring and second semicircle ring at the rotation in-process, and measured data's accuracy.
Further, equal interval evenly is equipped with one or more on the baffle 22 of first semicircle ring and the baffle 22 of second semicircle ring laser via hole 3, pivot 1 when rotating the round, the measuring apparatu is through measuring each laser via hole 3 on first semicircle ring and the second semicircle ring, and each circle is through measuring the multiple spot, can improve measuring accuracy.
Exemplarily, a connection baffle 22 is arranged between the baffle 22 of the first semicircular ring and the baffle 22 of the second semicircular ring, and the connection baffle 22 can cover a gap between the baffle 22 of the first semicircular ring and the baffle 22 of the second semicircular ring, so that the laser in the measuring instrument can be prevented from passing through the gap between the baffle 22 of the first semicircular ring and the baffle 22 of the second semicircular ring, and the accuracy of the measured data is affected.
Illustratively, the shaft rotation speed measuring device further comprises a protective cover 10, the protective cover 10 covers the baffle ring 2 and the baffle ring passageway 9, the protective cover 10 is installed on the installation frame 6, the preferred protective cover 10 comprises a first cover body and a second cover body, the first cover body is located above the baffle ring 2 and the baffle ring passageway 9, the second cover body is located below the baffle ring 2 and the baffle ring passageway 9, and the protective cover 10 can shield light, prevent dust and prevent water, so that the measuring accuracy of the tester is guaranteed against being influenced by external factors.
Illustratively, the measuring instrument is provided with one or more; as shown in fig. 3, in this embodiment, two measuring instruments are provided, the accuracy of the measured data can be ensured by the two measuring instruments, and when the measured data deviation between the two measuring instruments is large, it is necessary to check whether the shaft rotation speed measuring device has a fault.
Exemplarily, the mounting frame 6 is connected with the connecting frame 7 through a bolt, so that the mounting frame 6 is convenient to detach and mount, and the subsequent shaft rotating speed measuring device is convenient to inspect and maintain.
In summary, in the embodiment of the present invention, the baffle ring 2 and the rotating shaft 1 rotate synchronously, the laser beam emitted by the laser emitter 4 is shielded by the baffle ring 2, and the laser receiver 5 cannot receive the laser beam and cannot generate a signal, when the laser generating point of the laser emitter 4, the laser via hole 3 on the baffle ring 2, and the laser receiving point of the laser receiver 5 are located on the same straight line, the laser irradiates the laser receiver 5 through the laser via hole 3, the laser receiver 5 receives the laser and generates a signal to be transmitted to the main controller 8, and the main controller 8 processes the signal to obtain the rotating speed of the rotating shaft 1; the baffle ring 2 can pass through the baffle ring passageway 9, so that the baffle ring 2 is not in direct contact with the measuring instrument, the normal operation of the rotating shaft 1 is prevented from being influenced, the measuring instrument cannot deviate, the measuring instrument can be externally connected with a power supply, the service life of the measuring instrument is ensured to be long, and the maintenance is convenient; in addition, the divergence of the laser is extremely small, and the stable transmission performance is ensured; therefore, the rotating speed measuring device is high in rotating speed measuring precision and stable in transmission performance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between 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.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an axle speed measuring device, its characterized in that establishes in the pivot including measuring apparatu and ring and keeps off the ring, keep off and be equipped with the laser via hole on the ring, the measuring apparatu includes laser emitter, laser receiver, mounting bracket, link and master controller, laser emitter and laser receiver all install the mounting bracket, laser emitter with laser receiver is just right, laser emitter with form between the laser receiver and keep off the ring passageway, the laser beam that laser emitter sent is mutually perpendicular with the direction of testing the speed, the mounting bracket is installed the link, the link is fixed setting, laser emitter and laser receiver respectively with the master controller electricity is connected.
2. The shaft rotation speed measuring device according to claim 1, wherein the baffle ring comprises a first semicircular ring and a second semicircular ring, the first semicircular ring and the second semicircular ring each comprise a mounting plate which is matched with the rotating shaft in shape and a baffle plate which is fixedly arranged on the mounting plate, the mounting plate of the first semicircular ring and the mounting plate of the second semicircular ring are connected with the rotating shaft through bolts, and the laser through holes are formed in the first semicircular ring or/and the second semicircular ring.
3. The shaft speed measuring device of claim 2, wherein the baffles of the first semi-circular ring and the baffles of the second semi-circular ring are uniformly spaced with one or more laser through holes.
4. The shaft speed measuring device according to claim 2, wherein a connection baffle is provided between the baffle of the first semicircular ring and the baffle of the second semicircular ring.
5. The shaft speed measurement device of claim 1, further comprising a protective cover disposed over the slinger and the slinger passageway.
6. Shaft speed measuring device according to claim 1, characterized in that the measuring instrument is provided with one or more.
7. The shaft rotational speed measuring device according to claim 1, wherein the mounting bracket is connected to the connecting bracket by a bolt.
8. Shaft speed measuring device according to any of claims 1-7, characterised in that the stop ring is mounted on the main machine shaft of the vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010679017.XA CN111913003A (en) | 2020-07-15 | 2020-07-15 | Shaft rotating speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010679017.XA CN111913003A (en) | 2020-07-15 | 2020-07-15 | Shaft rotating speed measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111913003A true CN111913003A (en) | 2020-11-10 |
Family
ID=73280955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010679017.XA Pending CN111913003A (en) | 2020-07-15 | 2020-07-15 | Shaft rotating speed measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111913003A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112986606A (en) * | 2021-03-11 | 2021-06-18 | 铜陵有色金属集团股份有限公司工程技术分公司 | Fan speed and acceleration tester |
| CN114183932A (en) * | 2021-12-17 | 2022-03-15 | 珠海格力电器股份有限公司 | Gas water heater and fan rotating speed detection method and device |
| CN115060923A (en) * | 2022-08-17 | 2022-09-16 | 苏州铁近机电科技股份有限公司 | Bearing rotating speed testing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016080426A (en) * | 2014-10-14 | 2016-05-16 | 新日鐵住金株式会社 | Speed measuring device and speed measuring method |
| CN206906410U (en) * | 2017-05-11 | 2018-01-19 | 李瑞强 | A kind of measuring device for measuring rotating speed of mine blower fan |
| CN109975574A (en) * | 2019-04-18 | 2019-07-05 | 贵州民族大学 | A kind of small propeller rotation-speed measuring device and its measurement method |
| CN110261639A (en) * | 2019-06-05 | 2019-09-20 | 广州文冲船厂有限责任公司 | It is a kind of for measuring the device and its working method of axis revolving speed |
-
2020
- 2020-07-15 CN CN202010679017.XA patent/CN111913003A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016080426A (en) * | 2014-10-14 | 2016-05-16 | 新日鐵住金株式会社 | Speed measuring device and speed measuring method |
| CN206906410U (en) * | 2017-05-11 | 2018-01-19 | 李瑞强 | A kind of measuring device for measuring rotating speed of mine blower fan |
| CN109975574A (en) * | 2019-04-18 | 2019-07-05 | 贵州民族大学 | A kind of small propeller rotation-speed measuring device and its measurement method |
| CN110261639A (en) * | 2019-06-05 | 2019-09-20 | 广州文冲船厂有限责任公司 | It is a kind of for measuring the device and its working method of axis revolving speed |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112986606A (en) * | 2021-03-11 | 2021-06-18 | 铜陵有色金属集团股份有限公司工程技术分公司 | Fan speed and acceleration tester |
| CN114183932A (en) * | 2021-12-17 | 2022-03-15 | 珠海格力电器股份有限公司 | Gas water heater and fan rotating speed detection method and device |
| CN115060923A (en) * | 2022-08-17 | 2022-09-16 | 苏州铁近机电科技股份有限公司 | Bearing rotating speed testing device |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201110 |
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| RJ01 | Rejection of invention patent application after publication |