CN218765330U

CN218765330U - Signal conditioning device for vibration sensor of hydroelectric generating set

Info

Publication number: CN218765330U
Application number: CN202221924571.0U
Authority: CN
Inventors: 匙庆磊
Original assignee: Zhejiang Boyuan Electronic Technology Co ltd
Current assignee: Zhejiang Boyuan Electronic Technology Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-03-28
Anticipated expiration: 2032-07-25

Abstract

The utility model provides a hydroelectric generating set runout sensor signal conditioning device relates to hydroelectric generating set conditioning technology field, which comprises a housin, the inside rotation of casing is connected with the ware of dialling a grade, the casing is equipped with first gear, second gear and third gear respectively in the one side of being close to the ware of dialling a grade, the one side of dialling a grade ware is laminated mutually with outer wall one side of second gear, casing outer wall avris threaded connection has a plurality of screws, the casing has the cap through the screw connection, cap outer wall one side is inlayed and is equipped with the bearing, the cap has the knob through bearing swing joint, the cap is run through to the one end of knob to be connected with one side block of dialling a grade ware, chip, accurate resistance, collection card, digital signal reduction ware and voltage sensor are installed respectively to the inside one side of casing. The utility model discloses a problem that the signal is numerous and diverse has effectively been solved, the signal feedback of the real-time detection hydroelectric generating set runout sensor of being convenient for.

Description

Signal conditioning device for vibration sensor of hydroelectric generating set

Technical Field

The utility model belongs to the technical field of the hydroelectric generating set is taked care of, more specifically says, in particular to hydroelectric generating set runout sensor signal conditioning device.

Background

The signal conditioning device of the vibration sensor is used for conditioning output signals of sensors for fault diagnosis of various hydroelectric generating sets and supplying power, so that the acquisition equipment can normally acquire the conditioned signals.

Based on the above, the present inventors found that the following problems exist: when the existing conditioning device collects a-2-18V voltage signal, two precision resistors are directly adopted to divide the voltage of the signal into-1-9V voltage for collection, and if the signal output part of the sensor is not isolated, the internal circuit of the sensor may be coupled with the voltage dividing circuit, so that the importance of a test result is influenced.

In view of the above, research and improvement are made in view of the existing structure and defects, and a signal conditioning device for a hydro-power generating unit oscillation sensor is provided in order to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a hydroelectric generating set runout sensor signal conditioning device to solve the unable problem that realizes signal isolation processing of present conditioning device.

The utility model discloses hydroelectric generating set runout sensor signal conditioning device's purpose and efficiency are reached by following specific technological means:

the utility model provides a hydroelectric generating set runout sensor signal conditioning equipment, includes the casing, the casing internal rotation is connected with dials the shelves ware, the casing is equipped with first gear, second gear and third gear respectively in the one side that is close to dialling the shelves ware, the one side of dialling the shelves ware is laminated with outer wall one side of second gear mutually, casing outer wall avris threaded connection has a plurality of screws, the casing has the cap through screwed connection, cap outer wall one side inlays and is equipped with the bearing, the cap has the knob through bearing swing joint, the one end of knob runs through the cap to be connected with one side block of dialling the shelves ware, chip, precision resistor, collection card, digital signal restorer and voltage sensor are installed respectively to the inside one side of casing, the inside signal follower that is provided with of chip.

Furthermore, a power adapter is connected to one side of the outer wall of the shell, and one end of the power adapter penetrates through the shell and is electrically connected with the voltage sensor.

Furthermore, the outer wall of the shell is connected with a pair of signal interfaces, and the pair of signal interfaces are respectively a signal input port and a signal output port.

Furthermore, a gear mark is bonded on one side, close to the knob, of the shell cover, and a reflective layer is coated on the outer wall of the gear mark.

Furthermore, the output end of the voltage sensor is electrically connected with the output end of the chip, the output end of the signal follower is electrically connected with one end of the precision resistor, one side of the outer wall of the precision resistor is electrically connected with the input end of the acquisition card, and the output end of the acquisition card is electrically connected with the input end of the digital signal reducer.

Compared with the prior art, the utility model discloses following beneficial effect has:

this kind of hydroelectric generating set runout sensor signal conditioning device, through shifting the shelves ware, the signal follower, the knob, first gear, mutually supporting of second gear and third gear, make the device realize the function of signal isolation processing, and use through voltage sensor's installation, the power adapter of being convenient for carries out effectual power supply measure, and then satisfy the power supply demand of each electrical apparatus in the device, the influence each other between sensor output and divider resistance is kept apart to the rethread, and then be convenient for supply power for multiple different supply voltage's sensor. The utility model discloses the numerous and diverse problem of signal has effectively been solved, the signal feedback of the real-time detection hydroelectric generating set runout sensor of being convenient for.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a front sectional view of the present invention.

Fig. 3 is a side sectional view of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a housing; 2. a shell cover; 3. a knob; 4. a power adapter; 5. a signal interface; 6. identifying a gear; 7. a chip; 8. a signal follower; 9. precision resistance; 10. collecting cards; 11. a digital signal restorer; 12. a gear shifter; 13. a first gear; 14. a second gear; 15. a third gear; 16. a voltage sensor.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to 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, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment is as follows:

as shown in figures 1 to 3:

the utility model provides a hydroelectric generating set runout sensor signal conditioning equipment, which comprises a

housin

1, 1 inside rotation of casing is connected with gear shifting device 12, casing 1 is equipped with first gear 13 respectively in one side that is close to gear shifting device 12, second gear 14 and third gear 15, one side of gear shifting device 12 is laminated mutually with outer wall one side of

second gear

14, 1 outer wall avris threaded connection of casing has a plurality of screws, casing 1 has cap 2 through the screw connection, 2 outer wall one side inlays and is equipped with the bearing of cap, cap 2 has knob 3 through bearing swing joint, cap 2 is run through to the one end of knob 3, and be connected with one side block of gear shifting device 12, chip 7 is installed respectively to 1 inside one side of casing, precision resistance 9, collection card 10, digital signal reduction ware 11 and voltage sensor 16, the inside signal follower 8 that is provided with of chip 7.

Wherein, casing 1 outer wall one side is connected with power adapter 4, and power adapter 4 one end runs through casing 1 to with 16 electric connection of voltage sensor, through power adapter 4's connection use, be convenient for the device acquire sufficient electric energy.

Wherein, the outer wall of casing 1 is connected with a pair of signal interface 5, and a pair of signal interface 5 is signal input port and signal output port respectively, uses through the connection of signal interface 5, and the device of being convenient for docks with external sensor.

Wherein, the cap 2 has gear sign 6 in the one side bonding of being close to knob 3, and the reflector layer has been paintd on the 6 outer walls of gear sign, through the bonding of gear sign 6, is convenient for indicate the current gear information of operating personnel.

The output end of the voltage sensor 16 is electrically connected with the output end of the chip 7, the output end of the signal follower 8 is electrically connected with one end of the precision resistor 9, one side of the outer wall of the precision resistor 9 is electrically connected with the input end of the acquisition card 10, and the output end of the acquisition card 10 is electrically connected with the input end of the digital signal reductor 11.

The specific use mode and function of the embodiment are as follows:

when the signal conditioning device of the hydro-power generating unit vibration sensor is used, firstly, the device is installed in a designated working area, the device is started to carry out operation test, and the device is put into use after normal operation is ensured, wherein power is supplied through the connection of a power adapter 4, the voltage entering the device is respectively converted into +24V, -24V, ± 12V and ± 18V, wherein the +24V, -24V and ± 12V are used for supplying power to an accessed voltage sensor 16, a rail-to-rail chip 7 and a signal follower 8 which is amplified once are selected, the input impedance is fixedly adjusted to be 1M omega, then the chip 7 is supplied with power by the ± 18V to enable the signal follower 8 to carry out operation work, and as the chip 7 is in a rail-to-rail mode, signals of-2-18V can be successfully isolated from the front end, voltage division of the voltage signals after isolation is carried out by a precision resistor 9 to obtain voltages of-1-9V, the voltages can smoothly enter an acquisition card 10V acquisition range, digital signals in addition to be multiplied by a voltage division multiple in the 10 and then are input to a digital signal divider 11 to be subjected to a digital signal processing device, and a first stage is designed as a first stage, and a first stage signal is calculated and a first stage is calculated and is finished; a 250 omega resistor is connected in parallel to form a second gear 14; parallelly connected 500 omega's resistance is third gear 15 to realize voltage within the 18V, 4 ~ 20mA electric currents, 0 ~ 10mA electric currents switching gear alright gather, the utility model discloses effectively solve the numerous and diverse problem of signal, the signal feedback of the real-time detection hydroelectric generating set runout sensor of being convenient for.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a hydroelectric generating set runout sensor signal conditioning device which characterized in that: including casing (1), casing (1) inside rotation is connected with dials shelves ware (12), casing (1) is equipped with first gear (13), second gear (14) and third gear (15) respectively in the one side that is close to dialling shelves ware (12), the one side of dialling shelves ware (12) is laminated with the outer wall one side of second gear (14) mutually, casing (1) outer wall avris threaded connection has a plurality of screws, casing (1) has cap (2) through screwed connection, cap (2) outer wall one side inlays and is equipped with the bearing, cap (2) have knob (3) through bearing swing joint, the one end of knob (3) runs through cap (2) to be connected with one side block of dialling shelves ware (12), install chip (7), precision resistor (9), acquisition card (10), digital signal restorer (11) and voltage sensor (16) respectively in casing (1) inside one side, chip (7) inside is provided with signal follower (8).

2. The signal conditioning device for the hydro-power generating unit runout sensor according to claim 1, characterized in that: the power adapter (4) is connected to casing (1) outer wall one side, casing (1) is run through to power adapter (4) one end to with voltage sensor (16) electric connection.

3. The signal conditioning device for the hydro-power generating unit runout sensor according to claim 1, characterized in that: the outer wall of the shell (1) is connected with a pair of signal interfaces (5), and the signal interfaces (5) are a signal input port and a signal output port respectively.

4. The signal conditioning device for the hydro-power generating unit runout sensor according to claim 1, characterized in that: gear sign (6) have been bonded in one side that cap (2) are close to knob (3), gear sign (6) outer wall has scribbled the reflector layer.

5. The signal conditioning device for the hydro-power generating unit runout sensor according to claim 1, characterized in that: the output of voltage sensor (16) and the output electric connection of chip (7), the one end electric connection of signal follower (8) output and precision resistor (9), the input electric connection of outer wall one side and collection card (10) of precision resistor (9), the output of collection card (10) and the input electric connection of digital signal reduction ware (11).