CN213209079U

CN213209079U - Wide-range stable sensor device

Info

Publication number: CN213209079U
Application number: CN202022625199.0U
Authority: CN
Inventors: 胡波; 顾雨蒙
Original assignee: Beijing Dongfang Zhongheng Technology Development Co ltd
Current assignee: Beijing Dongfang Zhongheng Technology Development Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-05-14
Anticipated expiration: 2030-11-13

Abstract

The invention discloses a wide-range stable sensor device which comprises a rotary inductor and a stay rope reel, wherein one end of the rotary inductor is provided with a fixed head, the fixed head penetrates through an inductor base and is fixed, the stay rope reel is formed by fixedly connecting a hub and a clockwork spring chuck, the hub is positioned in a stay rope reel bin, a stay rope is wound on the hub, a rotating shaft of the rotary inductor penetrates through the inductor base and is fixedly connected with the hub, the clockwork spring chuck is clamped at one end of two groups of clockwork springs, the two groups of clockwork springs are placed in corresponding clockwork spring bins, the other end of each clockwork spring is clamped in a notch of the corresponding clockwork spring bin, and the inductor base, the stay rope reel bin and the two clockwork spring bins are sequentially overlapped. The double-spring structure with the two spring springs is arranged, and the stability and the reliability of the two spring springs are improved. The problem that the spring is rusted or is in an energy storage state for a long time to reduce the tension of the spring and influence the precision can be prevented.

Description

Wide-range stable sensor device

Technical Field

The invention relates to the technical field of sensors, in particular to a wide-range stable sensor device.

Background

The pull rope displacement sensor is also called a pull rope sensor, a pull rope electronic ruler and a pull rope encoder. The pull rope displacement sensor is a delicate structure of the linear displacement sensor, fully combines the advantages of an angle sensor and the linear displacement sensor, and is a sensor with small installation size, compact structure, large measurement stroke and high precision, and the stroke is different from hundreds of millimeters to dozens of meters.

Some existing stay cord displacement sensors have the problems of complex structure, high processing difficulty, insufficient stability and reliability and high manufacturing cost. After the sensor is used for a long time, the spring is in an energy storage state for a long time, so that the tension of the spring is reduced, the precision is influenced, and even the spring directly fails, so that the sensor cannot work continuously.

Disclosure of Invention

To overcome the above-mentioned deficiencies of the prior art, the present invention provides a wide range robust sensor apparatus.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a wide range sensor device that stabilizes, includes rotary inductor, stay cord spool, rotary inductor one end has the fixed head, the fixed head passes the inductor base and fixes, the stay cord spool comprises wheel hub and clockwork spring dop fixed connection, wheel hub is located the stay cord reel storehouse, the winding has the stay cord on the wheel hub, the pivot of rotary inductor pass the inductor base and with wheel hub fixed connection, clockwork spring dop card is in two sets of clockwork spring one end, and is two sets of clockwork spring places in the clockwork spring storehouse that corresponds and the breach in the clockwork spring storehouse that corresponds is just held to the other end card, and inductor base, stay cord reel storehouse, two clockwork spring storehouses overlap in proper order and fix.

The fixed head is fixedly connected with the inductor base through a fixed nut.

The sensor base passes through the fix with screw with stay cord spool storehouse, and two clockwork spring storehouses overlap in proper order and are fixed with stay cord spool storehouse through the screw.

A pull rope guide cylinder is embedded into the side face of the pull rope reel bin, and one end of the pull rope penetrates through the pull rope guide cylinder.

The pull rope is a stainless steel rope.

And a rotating shaft of the rotary inductor is inserted into the hub and is locked and fixed through a locking screw.

The rotary inductor is an incremental encoder or an absolute independent encoder or a mixed plastic rotary potentiometer or a conductive plastic rotary potentiometer or a synchronizer or a resolver.

The invention has the technical effects and advantages that:

1. this patent sets up two clockwork spring's double spring structure, and two clockwork spring have improved stability, reliability. The problem that the spring is rusted or is in an energy storage state for a long time to reduce the tension of the spring, the precision is influenced, and even the spring directly fails to cause the sensor to work continuously can be prevented.

2. The structure design is simple, and the cost is low.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a schematic view of the construction of the pull cord reel;

FIG. 5 is a schematic structural diagram of an inductor base;

FIG. 6 is a schematic structural view of a pull rope reel bin;

fig. 7 is a schematic structural diagram of a spring and a spring chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A wide range sensor device that stabilizes as shown in fig. 1 to 7, including rotary inductor 1, stay cord spool 2, rotary inductor 1 one end has fixed head 11, fixed head 11 passes inductor base 3 and fixes, stay cord spool 2 comprises wheel hub 21 and clockwork spring dop 22 fixed connection, wheel hub 21 is located stay cord spool storehouse 4, the winding has the stay cord on wheel hub 21, rotary inductor 1's pivot 12 pass inductor base 3 and with wheel hub 21 fixed connection, clockwork spring dop 22 card is in the one end at two sets of clockwork spring 6 centers, and is two sets of clockwork spring 6 places in corresponding clockwork spring storehouse 7 and the other end card is in the breach 71 of corresponding clockwork spring storehouse 7, and inductor base 3, stay cord spool storehouse 4, two clockwork spring storehouses 7 overlap in proper order and fix.

Preferably, the fixing head 11 is fixedly connected with the inductor base 3 through a fixing nut 8.

Preferably, the sensor base 3 and the rope reel chamber 4 are fixed by a first screw 41, and the two spring chambers 7 are sequentially overlapped and fixed to the rope reel chamber 4 by a second screw 42.

Preferably, a pull rope guide cylinder 43 is embedded in the side surface of the pull rope reel bin 4, and one end of the pull rope penetrates through the pull rope guide cylinder. The pull rope is a stainless steel rope.

Preferably, the rotating shaft 12 of the rotary inductor 1 is inserted into the hub 21 and is locked and fixed by the locking screw 9.

The function of the device is to convert mechanical motion into an electrical signal that can be metered, recorded or transmitted. The wide range robust sensor assembly consists of a stretchable stainless steel cable wound around a threaded hub that is coupled to a precision rotary sensor.

In operation, the device is mounted in a fixed position and the pull cord is attached to a moving object. The linear motion of the pull rope is aligned with the motion axis of the moving object. As the motion occurs, the drawstring expands and contracts. An internal spring ensures constant tension in the pull cord. The hub with the thread drives the precise rotary inductor to rotate, and an electric signal proportional to the moving distance of the pull rope is output. The displacement, direction or speed of the moving object can be obtained by measuring the output signal.

Common parameters include measuring stroke, output signal mode, linearity, repeatability, resolution, wire diameter specification, outlet tension, maximum round-trip speed, weight, input resistance, power, operating voltage, operating temperature, vibration, protection level, and the like.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. A wide range robust sensor apparatus, comprising: including rotary inductor, stay cord spool, rotary inductor one end has the fixed head, the fixed head passes the inductor base and fixes, the stay cord spool comprises wheel hub and clockwork spring dop fixed connection, wheel hub is located the stay cord spool storehouse, the winding has the stay cord on the wheel hub, rotary inductor's pivot pass the inductor base and with wheel hub fixed connection, clockwork spring dop card is in two sets of clockwork spring one end, and is two sets of clockwork spring places in the clockwork spring storehouse that corresponds and the other end card is in the breach in the clockwork spring storehouse that corresponds, and inductor base, stay cord spool storehouse, two clockwork spring storehouses overlap in proper order and are fixed.

2. A wide range robust sensor apparatus, as claimed in claim 1, wherein: the fixed head is fixedly connected with the inductor base through a fixed nut.

3. A wide range robust sensor apparatus, as claimed in claim 1, wherein: the sensor base passes through the fix with screw with stay cord spool storehouse, and two clockwork spring storehouses overlap in proper order and are fixed with stay cord spool storehouse through the screw.

4. A wide range robust sensor apparatus, as claimed in claim 1, wherein: a pull rope guide cylinder is embedded into the side face of the pull rope reel bin, and one end of the pull rope penetrates through the pull rope guide cylinder.

5. A wide range robust sensor apparatus, as claimed in claim 1, wherein: the pull rope is a stainless steel rope.

6. A wide range robust sensor apparatus, as claimed in claim 1, wherein: and a rotating shaft of the rotary inductor is inserted into the hub and is locked and fixed through a locking screw.

7. A wide range robust sensor apparatus, as claimed in claim 1, wherein: the rotary inductor is an incremental encoder or an absolute independent encoder or a mixed plastic rotary potentiometer or a conductive plastic rotary potentiometer or a synchronizer or a resolver.