CN217543161U - Portable sensor calibration equipment - Google Patents

Abstract

The utility model discloses a portable sensor calibration equipment. The method comprises the steps that a gear rotating speed sensor to be detected is installed at a corresponding position of a driven gear, a motor is started, when a driving gear rotates, a magnetic rod can move under the action of attraction of a gear, so that a coil generates current and transmits the current to a signal amplification transmitter through a lead, the signal amplification transmitter amplifies signals and transmits the amplified signals to a controller, the controller processes the signals of each signal amplification transmitter to obtain a plurality of gear rotating speeds and calculates the average rotating speed to serve as a final result, the rotating speed result of a display control panel is compared with the detection result of the gear rotating speed sensor to be detected, and the gear rotating speed sensor to be detected can be conveniently and accurately checked. Compared with the traditional dynamometer, the dynamometer is more convenient to use and lower in cost.

Description

Portable sensor calibration equipment

Technical Field

The utility model belongs to the technical field of the rotational speed sensor check-up, a portable sensor calibration equipment particularly.

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 method, an electrical method, a magnetic method, an optical method and a mixed method. The rotation 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 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, and the induction object is a magnetic material or a magnetic conduction material, such as magnetic steel, iron, electrical steel and the like. 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. The existing gear rotation speed sensor is generally checked by a manual work or a dynamometer system. The dynamometer system is used for detecting the performance of the gear rotating speed sensor, the dynamometer system is used for detecting, the testing process of the testing mode is complex, and the cost of the dynamometer system is high. The performance of the gear rotating speed sensor is measured manually, the error in picking up a tiny signal is large, and the result is not accurate.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

An object of the utility model is to solve current dynamometer system and detect gear speed sensor's with high costs and remove the problem of difficulty.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a portable sensor calibration equipment, including magnetic ring and a plurality of evenly distributed in detection subassembly on the magnetic ring absolutely, magnetic ring installs the driving gear absolutely, motor and driven gear are connected respectively to the transmission shaft both ends of driving gear, driving gear and driven gear size and specification are the same, it sets up in the corresponding detection position of driven gear to wait to detect the sensor, detection subassembly includes the bar magnet and encircles the coil that the bar magnet set up, bar magnet and coil set up in magnetic ring's the round hole absolutely, the round hole outside extension that magnetic ring was absolutely in the bar magnet protrusion is formed with the non return end, the diameter of non return end is greater than the diameter of round hole, the coil is connected with signal amplification transmitter through the wire, magnetic ring outside parcel has the shell absolutely, be equipped with the wire in the shell and connect signal amplification transmitter, the shell skin is connected with the casing through the fixed bolster, be equipped with the controller in the casing and be connected with the shell wire, the casing surface is equipped with the display control panel and is connected with the controller electricity, the control switch of motor is connected to the controller electricity.

Preferably, the motor is fixed on the bottom plate through a motor support, the shell is fixed on the bottom plate, and a plurality of groups of pulleys are arranged at the bottom of the bottom plate.

Preferably, the magnetic rod is movably arranged in the circular hole of the magnetic isolation circular ring.

Preferably, the side face of the coil adjacent to the magnetic bar is provided with a magnetic insulating layer.

Preferably, the distance of the non-return end protruding out of the magnetic insulation ring is 2-4 cm.

Preferably, the magnetic rod is further provided with a locking end, and the locking end is used for fixing the magnetic rod and limiting the movement of the magnetic rod.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

the utility model discloses a portable sensor calibration equipment, including magnetic ring and a plurality of evenly distributed in the detection subassembly on the magnetic ring absolutely, the driving gear is installed to the magnetic ring absolutely, motor and driven gear are connected respectively to the transmission shaft both ends of driving gear, driving gear and driven gear size and specification are the same, it sets up in the corresponding detection position of driven gear to wait to detect the sensor, the detection subassembly includes the bar magnet and encircles the coil that the bar magnet set up, bar magnet and coil set up in the round hole of magnetic ring absolutely, the round hole of bar magnet protrusion magnetic ring outwards extends and is formed with the non return end, the diameter of non return end is greater than the diameter of round hole, the coil is connected with signal amplification transmitter through the wire, magnetic ring outside parcel has the shell absolutely, be equipped with wire connection signal amplification transmitter in the shell, the shell skin is connected with the casing through the fixed bolster, be equipped with the controller in the casing and be connected with the wire in the shell, the casing surface is equipped with the display control panel and is connected with the controller electricity, the control switch of motor is connected to the controller electricity. The method comprises the steps that a gear rotating speed sensor to be detected is installed at a corresponding position of a driven gear, a motor is started, when a driving gear rotates, a magnetic bar can move under the action of attraction of the gear, a coil generates current and transmits the current to a signal amplification transmitter through a lead, the signal amplification transmitter amplifies signals and transmits the amplified signals to a controller, the controller processes the signals of each signal amplification transmitter to obtain a plurality of gear rotating speeds and calculates the average rotating speed to serve as a final result, the rotating speed result of a display control panel is compared with the detection result of the gear rotating speed sensor to be detected, and the gear rotating speed sensor to be detected can be conveniently and accurately checked. Compared with the traditional dynamometer, the dynamometer is more convenient to use and lower in cost.

Drawings

Fig. 1 is a schematic structural diagram of a portable sensor calibration device of the present invention;

fig. 2 is a schematic structural diagram of the housing of the present invention.

The reference numerals in the schematic drawings illustrate:

110. a magnetic isolation ring; 120. a housing; 130. a detection component; 131. a signal amplification transmitter; 132. a non-return end; 133. a coil; 134. a locking end; 135. a magnetic bar; 141. fixing a bracket; 142. a housing; 143. A display control panel; 144. a controller; 210. a drive shaft; 220. a driving gear; 230. a driven gear; 240. an electric motor; 250. a motor bracket; 300. a base plate; 310. a pulley.

Detailed Description

In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but on the contrary are provided for the purpose of making the disclosure more thorough and complete.

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 invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; 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 and 2, the portable sensor calibration device of this embodiment includes a magnetism-insulating ring 110 and a plurality of detection assemblies 130 uniformly distributed on the magnetism-insulating ring 110, the magnetism-insulating ring 110 is provided with a driving gear 220, two ends of a transmission shaft 210 of the driving gear 220 are respectively connected with a motor 240 and a driven gear 230, the driving gear 220 and the driven gear 230 have the same size and specification, the sensor to be detected is disposed at a corresponding detection position of the driven gear 230, the detection assembly 130 includes a magnetic rod 135 and a coil 133 disposed around the magnetic rod 135, the magnetic rod 135 and the coil 133 are disposed in a circular hole of the magnetism-insulating ring 110, the magnetic rod 135 protrudes out of the circular hole of the magnetism-insulating ring 110 and extends outward to form a non-return end 132, the diameter of the non-return end 132 is greater than that of the circular hole, the coil 133 is connected with a signal amplification transmitter 131 through a wire, the outer side of the magnetism-insulating ring 110 is wrapped with a housing 120, the housing 120 is provided with a wire connected with an outer layer 131 through a fixing bracket 141, the housing 142 is provided with a wire controller 144, and the housing 120 is electrically connected with a display controller panel 144 and electrically connected with the motor controller 144. The gear rotating speed sensor to be detected is installed at a corresponding position of the driven gear 230, the motor is started, when the driving gear 220 rotates, the magnetic rod 135 moves under the attraction of the gear, so that the coil 133 generates current and transmits the current to the signal amplification transmitter 131 through a lead, the signal amplification transmitter 131 amplifies and transmits the signal to the controller, the controller processes the signal of each signal amplification transmitter 131 to obtain a plurality of gear rotating speeds and calculates the average rotating speed as a final result, the rotating speed result of the display control panel 143 is compared with the detection result of the gear rotating speed sensor to be detected, and the gear rotating speed sensor to be detected can be conveniently and accurately checked. Compared with the traditional dynamometer, the dynamometer is more convenient to use and lower in cost.

Specifically, the motor 240 is fixed on the base plate 300 through the motor bracket 250, the housing 142 is fixed on the base plate 300, a plurality of sets of pulleys 310 are arranged at the bottom of the base plate 300, and the base plate 300 is driven to move through the pulleys 310, so that the whole device is conveniently moved.

The magnetic bar 135 is movably disposed in the circular hole of the magnetic isolation ring 110. The side of the coil 133 adjacent to the magnetic bar 135 is provided with a magnetic insulating layer. The non-return end 132 protrudes from the magnetic insulating ring 110 by a distance of 2 to 4cm. The magnetic rod 135 is further provided with a locking end 134, and the locking end 134 is used for fixing the magnetic rod 135 and limiting the movement of the magnetic rod 135.

The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not to be 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 all fall within the scope of the present invention; therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (6)

1. The utility model provides a portable sensor calibration equipment which characterized in that: the magnetic insulation detection device comprises a magnetic insulation ring (110) and a plurality of detection assemblies (130) uniformly distributed on the magnetic insulation ring (110), wherein a driving gear (220) is installed on the magnetic insulation ring (110), two ends of a transmission shaft (210) of the driving gear (220) are respectively connected with a motor (240) and a driven gear (230), the driving gear (220) and the driven gear (230) are the same in size and specification, each detection assembly (130) comprises a magnetic rod (135) and a coil (133) surrounding the magnetic rod (135), the magnetic rod (135) and the coil (133) are arranged in a round hole of the magnetic insulation ring (110), the round hole, protruding out of the magnetic insulation ring (110), of the magnetic rod (135) extends outwards to form a non-return end (132), the diameter of the non-return end (132) is larger than that of the round hole, the coil (133) is connected with a signal amplification transmitter (131) through a lead, a shell (120) is arranged outside the magnetic insulation ring (110), a lead is arranged in the shell (120) and connected with the signal amplification transmitter (131), a fixed support (120) is connected with a control panel (144) and a control panel (144) is arranged in the shell (142), the controller (144) is electrically connected with a control switch of the motor (240).

2. The portable sensor verification device of claim 1, wherein: the motor (240) is fixed on the bottom plate (300) through a motor support (250), the shell (142) is fixed on the bottom plate (300), and a plurality of groups of pulleys (310) are arranged at the bottom of the bottom plate (300).

3. The portable sensor verification device of claim 1, wherein: the magnetic bar (135) is movably arranged in the circular hole of the magnetic insulation ring (110).

4. The portable sensor verification device of claim 1, wherein: the side face of the coil (133) adjacent to the magnetic bar (135) is provided with a magnetic insulation layer.

5. The portable sensor verification device of claim 1, wherein: the distance of the non-return end (132) protruding out of the magnetic isolation ring (110) is 2-4 cm.

6. The portable sensor verification device of claim 1, wherein: the magnetic rod (135) is further provided with a locking end (134), and the locking end (134) is used for fixing the magnetic rod (135) and limiting the movement of the magnetic rod (135).

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