CN215005466U

CN215005466U - Radial multi-tooth gear disc water pump speed measuring device with redundant logic

Info

Publication number: CN215005466U
Application number: CN202121396430.1U
Authority: CN
Inventors: 赵占峰; 张闯休; 张全付; 闫琰; 刘轶
Original assignee: State Power Investment Group Zhengzhou Gas Power Generation Co ltd
Current assignee: State Power Investment Group Zhengzhou Gas Power Generation Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-03
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a radial multiple tooth gear dish water pump speed sensor with redundant logic, including detecting the gear dish, be provided with fixed knot structure between detecting the gear dish and the erection bracing pole, a plurality of tooth bodies have been seted up to detecting gear dish surface equidistance. Through the multiple tooth structure that sets up on the detection toothed disc, under the speed measuring principle of rotational speed and number of teeth inverse ratio, mode through increase tooth body number, measuring error has been reduced, thereby speed measuring device's measurement accuracy has been improved, avoid the water pump to open and stop and add when adding and subtracting the load the big influence to rotational speed measurement of string axle volume, through connecting rod and fixed block cooperation, conveniently install the detection toothed disc on the erection bracing pole, it tests the speed along with the water pump rotation to be convenient for the detection toothed disc, the rethread stop lever carries on spacingly to the fixed block, make the detection toothed disc be connected stably with the erection bracing pole, avoid connecting unstable influence accuracy of testing the speed because of the detection toothed disc, stability when having improved the detection toothed disc and using.

Description

Radial multi-tooth gear disc water pump speed measuring device with redundant logic

Technical Field

The utility model relates to a speed sensor, especially a radial multiple tooth gear dish water pump speed sensor with redundant logic.

Background

A high-pressure feed pump rotating speed measuring system matched with a domestic Siemens 9F gas turbine is characterized in that 1 speed measuring probe is axially arranged, the number of teeth is 3, a spoon pipe actuator frequently breaks down in actual use, a feed pump rotating speed signal jumps when the spoon pipe actuator breaks down, an automatic fault exits, the fault disappears soon, the rotating speed signal recovers, and great potential safety hazards are caused to the operation of a unit.

The main failure reasons are that a speed measuring probe designed by a manufacturer is axially installed, the installation and maintenance are generally 2-2.5mm, and the axial vibration quantity reaches 2-3mm when a feed pump is started or stopped, so that the gap of the speed measuring probe is reduced or even abraded, a speed measuring signal jumps, and abnormal failure of an automatic system of a spoon pipe of the high-pressure feed pump is caused. Therefore, a radial multi-tooth gear disc water pump speed measuring device with redundant logic is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The radial multi-tooth gear disc water pump speed measuring device with the redundancy logic is provided in the embodiment and used for solving the problem that in the prior art, a speed measuring signal jumps easily to cause abnormal faults of an automatic system of a spoon pipe of a high-pressure water feed pump in the measuring device.

According to the utility model discloses an aspect provides a radial multiple tooth toothed disc water pump speed sensor with redundant logic, including the detection toothed disc, be provided with fixed knot structure between detection toothed disc and the erection bracing pole, a plurality of tooth bodies have been seted up to detection toothed disc surface equidistance.

Further, fixed knot constructs including connecting rod and fixed block, the erection bracing pole has been cup jointed to detection toothed disc inside, and erection bracing pole bottom mounting has the connecting rod, the connecting rod extends to one end threaded connection of detection toothed disc lower part and has the fixed block, and the inside symmetrical sliding connection of connecting rod of fixed block bottom has the gag lever post, two the gag lever post all with middle dead lever sliding connection, and the dead lever upper and lower extreme all fixes inside the connecting rod, the cover is equipped with the spring on the dead lever, and two branches of spring are fixed respectively on the gag lever post

Further, the detection gear dish is provided with two, two the detection gear dish is each other redundant, the tooth body is provided with one.

Furthermore, the detection gear disc is connected with the intelligent control instrument through a signal cable.

Furthermore, the limiting rods are all arranged in a transverse T shape, and the length of the limiting rods is smaller than one half of that of the connecting rods.

Furthermore, the fixed rods are all arranged in a cross shape, and movable grooves matched with the fixed rods are formed in the limiting rods.

Through the above-mentioned embodiment of the utility model, adopted tooth multiple tooth structure to test the speed, through be provided with a plurality of tooth bodies on detecting the toothed disc, increase detecting the measuring accuracy of toothed disc, each other is redundant two detecting the toothed disc again for two detecting the toothed disc are each other for reserve, and any one detecting the toothed disc trouble does not influence the measurement, thereby has improved the measurement reliability, has solved the problem that the feed-water pump string axle volume produced the influence to the speed measurement when opening and stop and add and subtract the load greatly easily.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a structural detection gear plate according to an embodiment of the present invention;

fig. 2 is a schematic top view of a test site structure according to an embodiment of the present invention;

fig. 3 is a schematic front sectional view of an installation structure according to an embodiment of the present invention.

In the figure: 1. detection toothed disc, 2, tooth body, 3, bracing piece, 4, connecting rod, 5, fixed block, 6, gag lever post, 7, dead lever, 8, spring.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The speed measuring device in this embodiment can be applicable to the water pump, for example, provides following energy-conserving water pump based on water pump exit-inlet differential pressure in this embodiment, and the speed measuring device in this embodiment can be used to the energy-conserving water pump based on water pump exit-inlet differential pressure.

The water pump comprises a water pump body, wherein a water inlet end of the water pump body is communicated with a water inlet pipe, a water outlet end of the water pump body is communicated with a water outlet pipe, a hydraulic sensor is fixedly mounted on the inner wall of the water outlet pipe, a shell is communicated with the top of the water outlet pipe, a water outlet pipe is communicated with the top of the shell, a fixing frame is fixedly connected to the top and the bottom of the right side of the shell, a motor is fixedly connected to the right side of the opposite side of the fixing frame, a threaded rod is fixedly connected to an output shaft of the motor, a threaded pipe is sleeved on the surface of the threaded rod in a threaded manner, the left end of the threaded pipe extends to the inner cavity of the shell, slide bars are fixedly connected to the top and the bottom of the threaded pipe, slide grooves are formed in the top and the bottom of the inner cavity of the shell, the opposite ends of the slide bars extend to the inner cavity of the slide grooves and are movably connected with the inner wall of the slide bars, and an adjusting bar is fixedly connected to the left end of the threaded pipe, the right side of the bottom of the shell is fixedly connected with a controller.

Of course, the present embodiment may be used for other water pumps. Give unnecessary details here again one by one, introduce the utility model discloses a speed sensor.

Referring to fig. 1-3, a radial multi-tooth gear disc water pump speed measuring device with redundant logic includes a detection gear disc 1, a fixing structure is arranged between the detection gear disc 1 and a mounting support rod 3, the detection gear disc 1 with a plurality of tooth bodies 2 and 12-tooth multi-tooth structure is equidistantly arranged on the outer surface of the detection gear disc 1 in a radial installation manner, and disturbance of axial movement of a water feeding pump to rotation speed measurement is reduced, so that the measurement precision of the detection gear disc 1 can be improved.

The fixing structure comprises a connecting rod 4 and a fixing block 5, an installation supporting rod 3 is sleeved inside the detection gear disc 1, the connecting rod 4 is fixed at the bottom end of the installation supporting rod 3, one end of the connecting rod 4 extending to the lower part of the detection gear disc 1 is in threaded connection with the fixing block 5, limiting rods 6 are symmetrically and slidably connected inside the connecting rod 4 at the bottom end of the fixing block 5, the two limiting rods 6 are in sliding connection with a middle fixing rod 7, the upper end and the lower end of the fixing rod 7 are fixed inside the connecting rod 4, a spring 8 is sleeved on the fixing rod 7, the two springs 8 are respectively fixed on the limiting rods 6, the fixing block 5 is matched with the connecting rod 4, the detection gear disc 1 is convenient to install and fix, and the fixing block 5 is limited by the limiting rod 6, so that the fixing block 5 is more firmly and stably connected with the connecting rod 4, and the detection gear disc 1 is also convenient to take down, thereby facilitating the maintenance and replacement of the detection gear plate 1; the water feeding pump is characterized in that two detection gear discs 1 are arranged, the two detection gear discs 1 are redundant, 12 tooth bodies 2 are arranged, 2 radial mounting modes are adopted, disturbance of axial movement of the water feeding pump to rotation speed measurement can be reduced, 2 mounting probes are adopted and are mutually standby, and the reliability of the equipment is improved; the detection gear disc 1 is connected with the intelligent control instrument through a signal cable, so that a speed measurement signal is conveniently transmitted to the control instrument when the detection gear disc 1 measures speed, and measurement data can be conveniently observed; the limiting rods 6 are all arranged in a transverse T shape, and the length of the limiting rods 6 is less than one half of that of the connecting rod 4; dead lever 7 all sets up to "ten" font, 6 insides of gag lever post all offer with dead lever 7 complex movable groove, make things convenient for dead lever 7 and connecting rod 4 inside fixed, and make things convenient for gag lever post 6 to remove on dead lever 7 through the movable groove.

The utility model discloses when using, when needs are tested the speed, know according to the rotational speed measurement principle, produce a voltage pulse when the magnetic resistance formula speed probe response is tested the speed gear and is toothed, just produce Z (number of teeth) voltage pulse signal when the axle rotates the round, then according to formula N60T ZN is rotational speed unit: t is the voltage pulse per second, Z is the number of teeth of a gear disc), therefore, the rotating speed is inversely proportional to the number of teeth, when the number of teeth is 1, each pulse error is 60 revolutions, and when the number of teeth is 2, each pulse error is reduced to 30 revolutions, so that the larger the number of teeth Z is, the smaller the measurement error is, therefore, the larger the number of teeth Z is, the detection gear disc 1 sends an alternating current pulse signal to a rotating speed intelligent control instrument through a signal cable, the instrument carries out signal processing, when the detection gear disc 1 is installed, a limit rod 6 is pressed, the limit rod 6 compresses a spring 8 to move to the inside of a connecting rod 4, then the detection gear disc 1 is sleeved on an installation supporting rod 3, then a fixing block 5 is screwed to penetrate through the connecting rod 4 of the detection gear disc 1, the detection gear disc 1 can be fixed on the connecting rod 4 through the fixing block 5, the limit rod 6 is loosened, so that the limit rod 6 moves to the side edge of the fixing block 5 under the pushing of the spring 8, the detection gear plate 1 and the mounting support rod 3 can be firmly fixed.

The utility model discloses an useful part lies in:

1. the utility model is simple in operation, through setting up the multiple tooth structure of 12 on the detection toothed disc 1, under the speed measurement principle that rotational speed and number of teeth are inversely proportional, through the mode of increasing 2 numbers of tooth bodies, reduced measuring error to improve speed measuring device's measurement accuracy, avoided the water pump to open and stop and add and subtract the influence that the axle shaft volume is big to the rotational speed measurement when increasing and decreasing the load;

2. the utility model discloses rational in infrastructure, through connecting rod 4 and the cooperation of fixed block 5, conveniently install detection gear dish 1 on erection bracing pole 3, be convenient for detection gear dish 1 rotates along with the water pump and tests the speed, and rethread gag lever post 6 carries on spacingly to fixed block 5 for detection gear dish 1 is connected stably with erection bracing pole 3, avoids connecting unstable influence accuracy of testing the speed because of detection gear dish 1, has improved the stability when detection gear dish 1 uses.

It is well within the skill of those in the art to implement, without undue experimentation, the present invention does not relate to software and process improvements, as related to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a radial multiple tooth gear dish water pump speed sensor with redundant logic which characterized in that: including detection toothed disc (1), be provided with fixed knot between detection toothed disc (1) and erection bracing pole (3) and construct, a plurality of tooth bodies (2) have been seted up to detection toothed disc (1) surface equidistance.

2. A radial multiple-tooth-disc water pump speed measurement device with redundant logic according to claim 1, wherein: fixed knot constructs including connecting rod (4) and fixed block (5), erection bracing pole (3) have been cup jointed to detection toothed disc (1) inside, and erection bracing pole (3) bottom mounting has connecting rod (4), one end threaded connection that connecting rod (4) extended to detection toothed disc (1) lower part has fixed block (5), and the inside symmetrical sliding connection of connecting rod (4) of fixed block (5) bottom has gag lever post (6), two gag lever post (6) all with middle dead lever (7) sliding connection, and dead lever (7) are gone up the lower extreme and are all fixed inside connecting rod (4), the cover is equipped with spring (8) on dead lever (7), and spring (8) are two to be fixed respectively on gag lever post (6).

3. A radial multiple-tooth-disc water pump speed measurement device with redundant logic according to claim 1, wherein: the detection gear dish (1) is provided with two, two detection gear dish (1) each other is redundant, tooth body (2) are provided with 12.

4. A radial multiple-tooth-disc water pump speed measurement device with redundant logic according to claim 1, wherein: the detection gear plate (1) is connected with the intelligent control instrument through a signal cable.

5. A radial multiple-tooth-disc water pump speed measurement device with redundant logic according to claim 2, characterized in that: the limiting rods (6) are all arranged in a T shape in a transverse mode, and the length of each limiting rod (6) is smaller than one half of the length of the connecting rod (4).

6. A radial multiple-tooth-disc water pump speed measurement device with redundant logic according to claim 2, characterized in that: the fixing rods (7) are all arranged in a cross shape, and movable grooves matched with the fixing rods (7) are formed in the limiting rods (6).