CN216696366U

CN216696366U - Small module gear speed sensor

Info

Publication number: CN216696366U
Application number: CN202123190620.0U
Authority: CN
Inventors: 奚道安
Original assignee: Shanghai Daokun Technology Co ltd
Current assignee: Shanghai Daokun Technology Co ltd
Priority date: 2021-12-18
Filing date: 2021-12-18
Publication date: 2022-06-07
Anticipated expiration: 2031-12-18

Abstract

The utility model discloses a small-modulus gear rotating speed sensor which comprises a card and a part which are fixed with a rotating shaft of a gear to be detected, wherein the card and the part are coaxially arranged with the rotating shaft of the gear to be detected, one side of the card and the part, which is far away from the gear to be detected, is connected with a coaxial rotating shaft, one end of the rotating shaft, which is far away from the card and the part, is provided with a rotating wheel, the rotating wheel is arranged in a rotating bin, the rotating wheel is provided with a mark part, the inner wall of the rotating bin is provided with a first identifier and a second identifier, the first identifier and the second identifier are oppositely arranged, the first identifier and the second identifier are electrically connected with a processor, and the processor is electrically connected with a display. The rotating shaft of the gear to be detected and the clamping part are fixed, the gear to be detected rotates to drive the rotating wheel to drive, the number of times that the two pairs of identification parts of the first recognizer and the second recognizer scratch is counted and counted, data are sent to the processor, the processor calculates the rotating speed of the rotating wheel to obtain the rotating speed of the gear to be detected, and compared with the transmission method that the gear to be detected is directly detected through a single sensor, the result is more accurate.

Description

Small module gear speed sensor

Technical Field

The utility model belongs to the technical field of rotating speed sensors, and particularly relates to a small-module gear rotating speed sensor.

Background

The rotation speed sensor is a sensor for converting the rotation speed of a rotating object into electric quantity and outputting the electric quantity. The rotation speed sensor belongs to an indirect measuring device and can be manufactured by a mechanical, electrical, magnetic, optical and hybrid method and the like. The speed sensor can be divided into an analog type and a digital type according to different signal forms. The rotation speed sensor uses a magnetic sensitive resistor as an inductive element, and is a novel rotation speed sensor. The core component adopts a magnetic sensitive resistor as a detection element, and the noise is reduced through a brand new signal processing circuit, so that the function is more complete. Compared with the output waveform of other types of tooth speed sensors, the measured speed has extremely small error and good consistency of linear characteristics. When the tested object is provided with a convex (or concave) magnetic or magnetic conductive material, the sensor outputs a pulse signal related to the rotation frequency along with the rotation of the tested object, so as to achieve the purpose of sending a signal for speed measurement or displacement detection.

However, many sensors used for detecting the rotating speed of the gear at present directly detect the gear through a single induction head to perform induction measurement, and the problem of inaccurate detection result is easy to occur.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to solve the problem that the detection result is inaccurate because a plurality of existing sensors used for detecting the rotating speed of the gear detect the gear through a single induction head to perform induction measurement.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the utility model is as follows:

the utility model discloses a small module gear rotating speed sensor which comprises a card and a part fixed with a rotating shaft of a gear to be detected, wherein the card and the part are coaxially arranged with the rotating shaft of the gear to be detected, one side of the card and the part, which is far away from the gear to be detected, is connected with a coaxial rotating shaft, one end of the rotating shaft, which is far away from the card and the part, is provided with a rotating wheel, the rotating wheel is arranged in a rotating bin, the rotating wheel is provided with a mark part, the inner wall of the rotating bin is provided with a first identifier and a second identifier, the first identifier and the second identifier are oppositely arranged, the first identifier and the second identifier are electrically connected with a processor, and the processor is electrically connected with a display.

Preferably, the opposite side walls of the rotating bin are provided with a first rotating bearing and a second rotating bearing which are used for supporting and fixing the rotating shaft.

Preferably, the inner wall of the card and the inner wall of the card part are provided with a plurality of magnetic blocks which are uniformly distributed.

Preferably, the diameter of the clamping part is matched with the diameter of the rotating shaft of the gear to be measured.

Preferably, the processor is a plc controller.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

the utility model discloses a small-modulus gear rotating speed sensor which comprises a clamp and a part which are fixed with a rotating shaft of a gear to be detected, wherein the clamp and the part are arranged coaxially with the rotating shaft of the gear to be detected, one side of the clamp and the part, which is far away from the gear to be detected, is connected with a coaxial rotating shaft, one end of the rotating shaft, which is far away from the clamp and the part, is provided with a rotating wheel, the rotating wheel is arranged in a rotating bin, the rotating wheel is provided with a mark part, the inner wall of the rotating bin is provided with a first identifier and a second identifier, the first identifier and the second identifier are arranged oppositely, the first identifier and the second identifier are electrically connected with a processor, and the processor is electrically connected with a display. Through fixing gear axis of rotation and card and portion that awaits measuring, the gear rotation that awaits measuring drives and rotates the wheel drive, rotates the sign portion on the wheel and constantly sweeps recognizer one and recognizer two, and the number of times that recognizer one and recognizer two pairs of sign portions were drawn is counted and is timed to give the treater with data transmission, thereby the treater calculates the rotational speed that rotates the wheel and obtains the rotational speed of the gear that awaits measuring, than the driven gear that awaits measuring through single sensor direct detection, the result is more accurate.

Drawings

Fig. 1 is a schematic structural diagram of a small module gear speed sensor according to the present invention.

The reference numerals in the schematic drawings illustrate:

100. a card and a portion; 200. rotating the bin; 210. a first rotating bearing; 220. a second rotating bearing; 230. a marking part; 240. a rotating wheel; 251. a first identifier; 252. a second recognizer; 260. a rotating shaft; 300. a processor; 400. a display.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the utility model are shown, but which may be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of providing a more thorough disclosure of the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1, the small module gear revolution speed sensor of this embodiment includes the card and the portion 100 fixed with the gear rotating shaft that awaits measuring, card and portion 100 and the coaxial setting of gear rotating shaft that awaits measuring, card and portion 100 deviate from one side of the gear that awaits measuring is connected with coaxial rotation axis 260, the one end that card and portion 100 were kept away from to rotation axis 260 is equipped with and rotates wheel 240, it sets up in rotating storehouse 200 to rotate wheel 240, be equipped with sign portion 230 on the rotation wheel 240, it is equipped with recognizer one 251 and recognizer two 252 to rotate the inner wall of storehouse 200, recognizer one 251 and recognizer two 252 set up relatively, recognizer one 251 and recognizer two 252 electricity are connected with treater 300, treater 300 electricity is connected with display 400. The device of this embodiment fixes the gear axis of rotation that awaits measuring with card and portion 100, the gear rotation that awaits measuring drives and rotates wheel 240 and drive, first recognizer 251 and second recognizer 252 are constantly crossed to identification part 230 on rotating wheel 240, recognizer 251 and second recognizer 252 count and time the number of times that identification part 230 crossed, and send data to treater 300, thereby treater 300 calculates the rotational speed that rotates wheel 240 and obtains the rotational speed of the gear that awaits measuring, than the driven gear that awaits measuring through single sensor directly, the result is more accurate.

The opposite side walls of the rotating bin 200 are provided with a first rotating bearing 210 and a second rotating bearing 220 for supporting and fixing a rotating shaft 260, and the inner wall of the clamping part 100 is provided with a plurality of magnetic blocks which are uniformly distributed. For increasing the fixing firmness of the card and portion 100 and the rotating shaft of the gear to be tested.

The diameter of the clamping part 100 is matched with that of the rotating shaft of the gear to be measured. The processor 300 is a plc controller.

The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A small module gear speed sensor which is characterized in that: include card and portion (100) fixed with the gear rotation axle that awaits measuring, card and portion (100) and the coaxial setting of gear rotation axle that awaits measuring, card and portion (100) deviate from one side of the gear that awaits measuring is connected with coaxial rotation axis (260), the one end that card and portion (100) were kept away from in rotation axis (260) is equipped with rotates wheel (240), it sets up in rotating storehouse (200) to rotate wheel (240), be equipped with identification portion (230) on rotating wheel (240), it is equipped with recognizer one (251) and recognizer two (252) to rotate storehouse (200) inner wall, recognizer one (251) and recognizer two (252) set up relatively, recognizer one (251) and recognizer two (252) electricity are connected with treater (300), treater (300) electricity is connected with display (400).

2. A small module gear speed sensor as claimed in claim 1, wherein: and a first rotary bearing (210) and a second rotary bearing (220) are arranged on opposite side walls of the rotary bin (200) and used for supporting and fixing the rotary shaft (260).

3. A small module gear speed sensor as claimed in claim 1, wherein: the inner wall of the clamping part (100) is provided with a plurality of magnetic blocks which are uniformly distributed.

4. A small module gear speed sensor as claimed in claim 1, wherein: the diameter of the clamping part (100) is matched with the diameter of the rotating shaft of the gear to be measured.

5. A small module gear speed sensor as claimed in claim 1, wherein: the processor (300) is a plc controller.