CN205136395U

CN205136395U - Can survey bearing of rotational speed

Info

Publication number: CN205136395U
Application number: CN201520867833.8U
Authority: CN
Inventors: 宋超; 顾彬腾; 戚大程
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-10-29
Filing date: 2015-10-29
Publication date: 2016-04-06
Anticipated expiration: 2025-10-29

Abstract

The utility model relates to a can survey the bearing of rotation rate, utilize two the little copper of symmetry bodies that run through the embedding on ball bearing's the shield, the little copper body links to each other with the speedometer through wire and power, with power, speedometer, switch, the continuous built -up circuit of wire. Can touch mutually with the ball at bearing operation in -process, the every rotatory round of bearing will produce eight touchings and break away from the phenomenon. Under the condition of switch closure, bearing revolution round will produce the electric current eight times, directly converts here current data to bearing rotation speed through the data conversion table and shows, reaches the purpose of measuring bearing rotation speed.

Description

A kind of bearing surveying rotating speed

Technical field

The utility model relates to a kind of bearing surveying rotating speed, belongs to mechanical equipment technical field.

Background technique

In field of engineering technology, often need the rotational speed measuring rotating equipment with speed probe, also need bearing to play support and the effect of reducing friction to rotating equipment.The principles such as the speed probe many employings Mageneto-sensitive type in machinery and laser type, cost of production is higher, so need a kind of novel principles to reduce the cost of speed probe.Also the example directly speed probe and ball bearing directly combined is lacked in engineering.

Model utility content

The utility model is for solving prior art Problems existing, a kind of bearing surveying rotating speed is provided, by the simple and easy and mode that fabricating cost is lower the rotational speed of rotating equipment measured in the mode of electric current and record, reducing the cost of production of speed probe.This bearing adopts ball bearing to be architecture basics, and additional speed probe function, makes this product can replace ball bearing and more complicated speed probe simultaneously.

The purpose of this utility model is realized by following measures:

A bearing for rotating speed can be surveyed, it is characterized in that: this bearing is made up of the ball bearing containing eight balls, insulation dust cover, common dust cover, two little copper bodies, measuring circuits;

Described insulation dust cover adopts the insulator that the friction factor such as plastics or nylon is less;

Described insulation dust cover runs through the symmetrical smooth little copper body of embedding two;

The little copper body in inner side of described insulation dust cover can just conduct electricity with wherein two ball contact but not hinder the rotation of ball;

Little copper body outside described insulation dust cover is connected with tachometer with power supply by wire, is connected to form circuit with power supply, tachometer, switch, wire.

The ball of described bearing can be touched mutually with little copper body in bearing operation process, and bearing often revolves to turn around and will produce eight touching break-offs.In the outside of insulation dust cover, circuit is connected to form: close switch with power supply, tachometer, switch, wire, when two balls contact with two little copper bodies, the closed-loop path of " positive source-switch-little copper body (I)-ball (I)-bearing inner race-ball (II)-little copper body (II)-tachometer-power cathode " will be formed; When little copper body is left in ball rotation, two little copper bodies make circuit disconnect owing to lacking ball as middle conductor.When switch is closed, bearing often turns around, and will produce eight primary currents.The effect of data conversion table is the number of times of generation current in circuit in the analytical unit time and this current data is directly changed into bearing rotating speed shows, and reaches the object measuring bearing rotating speed.

Accompanying drawing explanation

Fig. 1 is that ball of the present utility model contacts with little copper body the schematic diagram forming loop;

Fig. 2 is that ball of the present utility model is separated with little copper body the schematic diagram forming open circuit.

Fig. 3 is the side half sectional view under Fig. 1 state of the present utility model.

In Fig. 1 to Fig. 3: 1-outer ring, 2-inner ring, 3-ball, 4-insulate dust cover, the common dust cover of 5-, the little copper body of 6-, 7-power supply, 8-retainer, 9-tachometer.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Embodiment 1:

Can survey a bearing for rotating speed, this bearing is made up of the ball bearing containing eight balls 3, insulation dust cover 4, common dust cover 5, two little copper bodies 6, measuring circuits;

Described insulation dust cover 4 adopts the insulator that the friction factor such as plastics or nylon is less;

Described insulation dust cover 4 runs through the symmetrical smooth little copper body 6 of embedding two;

The little copper body 3 in inner side of described insulation dust cover 4 can just conduct electricity with wherein two ball contact but not hinder the rotation of ball;

Little copper body 3 outside described insulation dust cover 4 is connected with tachometer 9 with power supply 7 by wire, is connected to form circuit with power supply 7, tachometer 9, switch, wire.

Outer ring 1, inner ring 2, ball 3, insulation dust cover 4, common dust cover 5, retainer 8 form bearing basic structure, little copper body 6 is fixed on insulation dust cover 4, little copper body 6 is connected with tachometer 9 with power supply 7 by wire, power data tachometer 9 can convert the current signal in circuit to bearing rotating speed and show, insulation dust cover 5 is insulator, ensures that electric current cannot directly pass to outer ring 1 and inner ring 2 from little copper body 6.

Be fixed on a rotating equipment by the inner ring 2 of this speed probe, switch on power, along with the running of rotating equipment, tachometer 9 will demonstrate the rotating speed of equipment.

Although the utility model with preferred embodiment openly as above; but they are not for limiting the utility model; anyly be familiar with related domain technical professional; not departing from the spirit and scope of the utility model; various simple modification, equivalent variations can be made, still belong to the protection domain of technical solutions of the utility model.

Claims

1. can survey a bearing for rotating speed, it is characterized in that: this bearing surveying rotating speed is made up of the ball bearing containing eight balls, insulation dust cover, common dust cover, two little copper bodies, measuring circuits;

2. bearing according to claim 1, is characterized in that:

Described insulation dust cover adopts plastics or the nylon of insulation.

3. bearing according to claim 1, is characterized in that:

Described ball can be touched mutually with little copper body in bearing operation process, and bearing often revolves to turn around and will produce eight touching disengagings, in the outside of insulation dust cover, is connected to form circuit with power supply, tachometer, switch, wire; Close switch, when two balls contact with two little copper bodies, will form closed circuit; When little copper body is left in ball rotation, two little copper bodies make circuit disconnect owing to lacking ball as middle conductor; When switch is closed, bearing often turns around, and will produce eight primary currents, and this current data is directly changed into bearing rotating speed and shows by tachometer.