CN214252334U - Rotating speed monitoring device - Google Patents

Abstract

The utility model relates to a rotational speed monitoring technology field especially relates to a rotational speed monitoring devices. The rotating speed monitoring device comprises a base, a rotary table, a first driving piece, a sensing support and a second driving piece, wherein the rotary table is rotatably connected to the base; the first driving piece is connected to the rotary table in a transmission manner and used for driving the rotary table to rotate around a first direction; the sensing bracket is rotationally connected with the rotary table and used for mounting a rotating speed sensor; the second driving piece is connected to the sensing support in a transmission mode and used for driving the sensing support to rotate around a second direction, and the second direction and the first direction are arranged in a staggered mode. The rotation speed monitoring device can realize the angle and position adjustment of the remote control rotation speed sensor, and has the advantages of convenience in disassembly and assembly and convenience in maintenance.

Description

Rotating speed monitoring device

Technical Field

The utility model relates to a rotational speed monitoring technology field especially relates to a rotational speed monitoring devices.

Background

The water supply system of the thermal power plant is an important system for ensuring the normal operation of the boiler, the water supply system can adopt a steam feed pump to provide boiler water supply, the water supply system can cause the water cut of the boiler when the water supply system fails, the failures of metal overtemperature, metal fatigue, tube explosion and the like of the boiler occur, and great potential safety hazards are brought to the operation of the thermal power plant. The water supply system of a common power plant usually adopts steam-driven water supply pump equipment, and a water supply pump is driven to operate by a steam turbine. The impeller rotating speed of the water feeding pump directly reflects whether the water feeding pump normally operates, so a monitoring device is generally installed for monitoring the rotating speed in real time. The function of the prior art rotational speed monitoring device is mainly realized by a rotational speed sensor. The rotation speed sensor can be of a laser type, a magnetic type, an electromagnetic type and the like, wherein the laser type rotation speed sensor can remotely measure the speed. However, the laser rotating speed sensor needs to be fixedly installed after being aligned with the impeller, and the remote angle adjustment and maintenance are inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rotational speed monitoring devices to solve the technical problem of the inconvenient remote angle regulation of speed sensor and maintenance.

The utility model provides a rotational speed monitoring devices for monitoring water pump rotational speed, this rotational speed monitoring devices includes:

a base;

the rotary table is rotatably connected to the base;

the first driving piece is connected to the rotary table in a transmission mode and used for driving the rotary table to rotate around a first direction;

the sensing bracket is rotationally connected to the rotary table and used for mounting a rotating speed sensor; and

the second driving piece is in transmission connection with the sensing support and used for driving the sensing support to rotate around a second direction, and the second direction and the first direction are arranged in a staggered mode.

Furthermore, the rotary table is of a cylindrical shell structure, the first driving part comprises a first motor, and the output end of the first motor is fixedly connected with the lower end part of the rotary table;

and/or the second direction is vertically arranged in a staggered manner with the first direction.

Furthermore, a driving gear is pivoted in the turntable, the second driving piece comprises a second motor, and the output end of the second motor is fixedly connected with the driving gear;

the upper end part outside the rotary table is fixedly provided with two lug plates which are arranged in parallel at intervals;

the sensing bracket comprises a driven gear and a sensor mounting plate fixedly connected to the driven gear; the driven gear is meshed with the driving gear.

Further, the base includes the base and sets firmly in the accent position box of base, first motor, the revolving stage with the driving gear all is located the accent position box is inside.

Furthermore, the inner side wall of the positioning box is connected with the outer side wall of the rotary table in a sliding mode, a ring plate is fixedly arranged at the position, between the first motor and the rotary table, of the inner side wall of the positioning box, and a rolling body is arranged between the ring plate and the rotary table.

Further, the upper end face of the ring plate is provided with a first ring groove, and the rolling bodies are located in the first ring groove.

Further, the base comprises a fixed plate, a support plate and a support plate, the fixed plate is perpendicular to and fixedly connected with the support plate, and the support plate is horizontally arranged; the upper end of the supporting plate is fixedly connected with the lower end face of the supporting plate, and the lower end of the supporting plate is fixedly connected with the end face of the fixed plate for fixedly connecting the supporting plate;

the position adjusting box is fixedly connected to the upper end face of the support plate.

Further, one side of the support plate, which is far away from the fixing plate, is provided with a U-shaped opening;

the lower end of the position adjusting box is fixedly provided with a positioning block, and the positioning block is matched with the U-shaped opening.

Further, the locating piece has the screw hole, screw hole match has the bolt, the nut external diameter of bolt is greater than the width of U-shaped opening.

Further, the position adjusting box is provided with a controller, and the controller is electrically connected with the rotating speed sensor.

The utility model provides a rotational speed monitoring devices can produce following beneficial effect:

the utility model provides an among the rotational speed monitoring devices, first driving piece drive revolving stage rotates around the first direction, second driving piece drive sensing support rotates around the second direction, first direction and the crisscross setting of second direction, namely first direction is different with the second direction, therefore, can realize the rotation to two directions of sensing support through first driving piece and second driving piece, thereby drive the rotational speed sensor on the sensing support and rotate to two directions, thereby realize a plurality of angles and the position adjustment to rotational speed sensor, first driving piece and second driving piece can be in remote control, thereby realize remote control rotational speed sensor's angle and position adjustment; during the use, only need with the base install in relevant position can, during the maintenance, only need pull down the base and can carry out corresponding maintenance to it, it is convenient to have the dismouting, the advantage of being convenient for maintain.

Drawings

Fig. 1 is an explosion schematic view of a three-dimensional structure of a rotation speed monitoring device according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of the rotational speed monitoring device according to the embodiment of the present invention after assembly.

Description of reference numerals:

100-a base;

110-a base; 111-a fixed plate; 112-a plate; 113-a support plate;

120-positioning box; 121-ring plate; 122-rolling elements;

123-positioning blocks; 124-a controller; 125-a circuit board;

200-a turntable; 210-a drive gear; 220-ear plate;

300-a first driver;

400-a sensing support; 410-driven gear; 420-a sensor mounting plate;

500-a second driver;

600-rotating speed sensor.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

This embodiment provides a rotational speed monitoring devices for monitoring water pump rotational speed, this rotational speed monitoring devices includes as shown in fig. 1, fig. 2: the sensor comprises a base 100, a turntable 200, a first driving member 300, a sensing bracket 400 and a second driving member 500, wherein the turntable 200 is rotatably connected to the base 100; the first driving member 300 is in transmission connection with the turntable 200 and is used for driving the turntable 200 to rotate around a first direction; the sensing bracket 400 is rotatably connected to the turntable 200 and used for mounting the rotation speed sensor 600; the second driving member is connected to the sensing bracket 400 in a transmission manner, and is used for driving the sensing bracket 400 to rotate around a second direction, and the second direction and the first direction are arranged in a staggered manner.

In the rotational speed monitoring device provided by this embodiment, the first driving member drives the turntable to rotate around the first direction, the second driving member drives the sensing bracket to rotate around the second direction, and the first direction and the second direction are arranged in a staggered manner, that is, the first direction is different from the second direction, so that the rotation of the sensing bracket in two directions can be realized through the first driving member and the second driving member, thereby driving the rotational speed sensor on the sensing bracket to rotate in two directions, thereby realizing the adjustment of multiple angles and positions of the rotational speed sensor, and the first driving member and the second driving member can be remotely controlled, thereby realizing the adjustment of angles and positions of the rotational speed sensor; during the use, only need with the base install in relevant position can, during the maintenance, only need pull down the base and can carry out corresponding maintenance to it, have the advantage that the dismouting is convenient, be convenient for maintain.

In this embodiment, the second direction is vertically staggered with respect to the first direction.

In this embodiment, specifically, as shown in fig. 1 and 2, the turntable 200 is a cylindrical housing structure, the first driving member 300 includes a first motor, and an output end of the first motor is fixedly connected to a lower end portion of the turntable 200. The first motor rotates to rotate the turntable 200 around the first direction.

In this embodiment, the transmission connection manner between the second driving member 500 and the sensing bracket 400 is gear transmission, specifically, as shown in fig. 1 and fig. 2, a driving gear 210 is pivoted inside the turntable 200, the second driving member 500 includes a second motor, and an output end of the second motor is fixedly connected with the driving gear 210; the outer upper end part of the rotary table 200 is fixedly provided with two lug plates 220, and the two lug plates 220 are arranged in parallel at intervals; the sensing bracket 400 comprises a driven gear 410 and a sensor mounting plate 420 fixedly connected to the driven gear 410; the driven gear 410 is engaged with the driving gear 210. The second motor is operated to drive the driving gear 210 to rotate, and the driven gear 410 drives the sensing bracket 400 to rotate around the second direction under the meshing action of the driving gear 210, thereby driving the rotation speed sensor to rotate around the second direction.

Referring to fig. 1 and fig. 2, in the present embodiment, the driving gear 210 and the driving gear shaft fixedly connected thereto may be an integrated structure, or may be a detachable fixed connection structure; the driven gear and the driven gear shaft fixedly connected with the driven gear can be of an integral structure or a detachable fixed connection structure, and only part of circumferential angles of the teeth of the driven gear are provided with teeth around the circumferential direction of the driven gear shaft; the sensor mounting plate 420 is coplanar or parallel to the axis of the driven gear and is located at a position where the circumference has no teeth, and the sensor mounting plate 420 has a mounting hole for mounting the rotation speed sensor therethrough.

It should be noted that in other embodiments of the present application, the transmission connection between the second driving member 500 and the sensing bracket 400 may also be a belt transmission, which is not described in detail herein.

In this embodiment, as shown in fig. 1 and 2, the base 100 includes a base 110 and a positioning box 120 fixed to the base 110, and the first motor, the turntable 200 and the driving gear 210 are all located inside the positioning box 120. Specifically, the positioning box 120 is a cylindrical shell structure, and corresponding parts can be arranged in the positioning box 120, so that the parts are effectively protected, and particularly, the first driving member and the second driving member inside the parts can be protected, so that the service life is prolonged.

Specifically, the inner side wall of the positioning box 120 is slidably connected to the outer side wall of the turntable 200, a ring plate 121 is fixedly disposed at a position between the first motor and the turntable 200 on the inner side wall of the positioning box 120, and a rolling body 122 is disposed between the ring plate 121 and the turntable 200. The setting of crown plate 121 can bear the gravity of revolving stage 200 and its top, and the pressure that the first motor bore is liberated, effectively protects first motor, prolongs its life, and moreover, the steady rotation of revolving stage 200 can be realized in the setting of crown plate 121, and then makes speed sensor can steadily rotate the adjustment. The rolling body 122 may be a cylinder or a sphere, which is not limited herein, and the rolling body 122 may be arranged to realize that the friction between the turntable 200 and the ring plate 121 is rolling, so as to ensure a smaller friction coefficient therebetween.

In this embodiment, the rolling element 122 is a ball, the upper end surface of the ring plate 121 has a first ring groove, and the rolling element 122 is located in the first ring groove. With this arrangement, the rolling elements 122 can be confined in the first ring grooves and prevented from rolling off.

In this embodiment, as shown in fig. 1 and fig. 2, the base 110 includes a fixing plate 111, a supporting plate 112 and a supporting plate 113, the fixing plate 111 is perpendicular to and fixedly connected with the supporting plate 112, and the supporting plate 112 is horizontally disposed; the upper end of the supporting plate 113 is fixedly connected to the lower end surface of the supporting plate 112, and the lower end is fixedly connected to the end surface of the fixing plate 111 for fixedly connecting the supporting plate 112; the positioning box 120 is fixed to the upper end surface of the support plate 112. The fixing plate 111 is used for mounting on other equipment or a wall. The fixing connection between the fixing plate 111 and the support plate 112 may be welding, or may be detachable, for example, by fixing the fixing plates 111 and 112 with fasteners. The supporting plate 113 has the function of a reinforcing rib, so that the lower part of the supporting plate 112 can be effectively supported, the strength and the rigidity of the supporting plate are improved, and the stability of the whole base is ensured. The positioning box 120 and the support plate 112 can be fixedly connected in a detachable manner, for example, by a fastener or a snap connection.

In this embodiment, as shown in fig. 1 and fig. 2, a side of the support plate 112 away from the fixing plate 111 has a U-shaped opening 1121; the lower end of the positioning box 120 is fixedly provided with a positioning block 123, and the positioning block 123 is matched with the U-shaped opening 1121. Specifically, the positioning block 123 has a rectangular structure, and when the positioning block 123 is inserted into the U-shaped opening, the positioning box 120 can be limited. Has the advantages of wide material source and simple structure.

In this embodiment, the positioning block 123 has a threaded hole, the threaded hole is matched with a bolt 1231, and the outer diameter of the nut of the bolt 1231 is greater than the width of the U-shaped opening. When the positioning box 120 is used, a bolt or a screw is screwed into the threaded hole from the lower direction, and the nut abuts against the lower end face of the support plate 112, so that the positioning box 120 is positioned.

In this embodiment, the positioning box 120 is provided with a controller 124, and the controller 124 is electrically connected to the rotation speed sensor. The controller structurally comprises a shell, a display screen, a control button and a circuit module, wherein a Bluetooth module is arranged in the circuit module, the controller is in Bluetooth wireless connection with a circuit board, and the controller can send an instruction signal to the circuit board 125 to control the motor to operate. In this embodiment, the inside circuit board that is provided with of positioning box, be provided with control circuit, processing circuit, bluetooth module, wireless connection module on the circuit board, speed sensor, motor and circuit board electric connection, circuit board and remote terminal wireless connection, the circuit board is received and is handled the rotational speed signal to realize exchanging with remote terminal's data. Therefore, the control over the rotating speed sensor, the first driving piece and the second driving piece is realized, and the remote angle and position adjustment of the rotating speed sensor is effectively realized.

In short, in this embodiment, the first motor drives the rotating platform to rotate horizontally, the rotating platform drives the sensing support to rotate horizontally, the second motor drives the sensing support to rotate vertically through gear transmission, and the rotation speed sensor rotates horizontally and vertically along with the sensing support until the signal of the rotation speed sensor is aligned to the sensing point of the water pump impeller; the rotating speed sensor senses the rotating speed of the impeller, and the circuit board receives and processes rotating speed signals and transmits the signals to the remote terminal.

Finally, it is further noted that, herein, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A rotational speed monitoring device for monitoring a rotational speed of a water pump, the rotational speed monitoring device comprising:

a base (100);

a turntable (200), said turntable (200) being rotatably connected to said base (100);

the first driving part (300), the first driving part (300) is connected to the rotary table (200) in a transmission manner and is used for driving the rotary table (200) to rotate around a first direction;

the sensing bracket (400), the sensing bracket (400) is rotatably connected to the rotary table (200) and is used for installing a rotating speed sensor (600); and

and the second driving piece (500) is in transmission connection with the sensing bracket (400) and is used for driving the sensing bracket (400) to rotate around a second direction, and the second direction and the first direction are arranged in a staggered manner.

2. The device for monitoring the rotating speed according to claim 1, wherein the rotating platform (200) is of a cylindrical shell structure, the first driving member (300) comprises a first motor, and the output end of the first motor is fixedly connected with the lower end part of the rotating platform (200);

and/or the second direction is perpendicular to the first direction in a staggered mode.

3. The rotating speed monitoring device according to claim 2, wherein a driving gear (210) is pivoted inside the turntable (200), the second driving member (500) comprises a second motor, and an output end of the second motor is fixedly connected with the driving gear (210);

the upper end part outside the rotary table (200) is fixedly provided with two lug plates (220), and the two lug plates (220) are arranged in parallel at intervals;

the sensing bracket (400) comprises a driven gear (410) and a sensor mounting plate (420) fixedly connected to the driven gear (410); the driven gear (410) is engaged with the driving gear (210).

4. The device for monitoring the rotating speed according to claim 3, wherein the base (100) comprises a base (110) and a positioning box (120) fixedly arranged on the base (110), and the first motor, the rotary table (200) and the driving gear (210) are all positioned inside the positioning box (120).

5. The rotating speed monitoring device according to claim 4, wherein an inner side wall of the positioning box (120) is slidably connected with an outer side wall of the rotary table (200), a ring plate (121) is fixedly arranged at a position, between the first motor and the rotary table (200), of the inner side wall of the positioning box (120), and a rolling body (122) is arranged between the ring plate (121) and the rotary table (200).

6. A rotational speed monitoring device according to claim 5, wherein the upper end surface of the ring plate (121) has a first ring groove, and the rolling bodies (122) are located in the first ring groove.

7. A device for monitoring the rotation speed according to any one of the claims 4 to 6, wherein the base (110) comprises a fixed plate (111), a support plate (112) and a support plate (113), the fixed plate (111) is perpendicular to and fixedly connected with the support plate (112), and the support plate (112) is horizontally placed; the upper end of the supporting plate (113) is fixedly connected to the lower end face of the supporting plate (112), and the lower end of the supporting plate is fixedly connected to the end face of the fixing plate (111) for fixedly connecting the supporting plate (112);

the positioning box (120) is fixedly connected to the upper end face of the support plate (112).

8. A rotational speed monitoring device according to claim 7, wherein the side of the support plate (112) remote from the fixed plate (111) has a U-shaped opening (1121);

the lower end of the position adjusting box (120) is fixedly provided with a positioning block (123), and the positioning block (123) is matched with the U-shaped opening (1121).

9. A rotational speed monitoring device according to claim 8, wherein the positioning block (123) has a threaded hole fitted with a bolt (1231), the bolt (1231) having a nut outer diameter larger than the width of the U-shaped opening (1121).

10. A rotational speed monitoring device according to claim 9, wherein the positioning box (120) is provided with a controller (124), the controller (124) being electrically connected with the rotational speed sensor.

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