CN201037764Y - Displacement sensor for measuring gap of brake block - Google Patents
Displacement sensor for measuring gap of brake block Download PDFInfo
- Publication number
- CN201037764Y CN201037764Y CNU2007200359857U CN200720035985U CN201037764Y CN 201037764 Y CN201037764 Y CN 201037764Y CN U2007200359857 U CNU2007200359857 U CN U2007200359857U CN 200720035985 U CN200720035985 U CN 200720035985U CN 201037764 Y CN201037764 Y CN 201037764Y
- Authority
- CN
- China
- Prior art keywords
- cover
- sounding rod
- overcoat
- hall element
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a displacement sensor for measuring brake shoe clearance, applied in particular to measuring brake shoe clearance of mine hoist. The utility model consists of a rear cover, a jacket, a copper inner casing, a front cover, a measuring rod, a Hall element and a circuit board of the Hall element, a spring, a magnetic steel and an aviation plug, wherein, the copper inner casing is sleeved in the jacket; the rear of the measuring rod is arranged in the copper inner casing and connected with thread of the copper inner casing, and the front part of the measuring rod extends out of the jacket; the front cover is arranged on the jacket through the head thread of the measuring rod, and the rear cover is arranged at the rear of the jacket; the Hall element and the circuit board of the Hall element and the spring are arranged at bottom of the rear cover, and a lead of the circuit board is led by the aviation plug arranged at the bottom of the rear cover; the other end of the spring is sleeved on the measuring rod, and the magnetic steel is arranged in a groove at the rear of the measuring rod. When the magnetic steel moves along the measuring rod, magnetic field strength acting on the Hall element changes, and displacement is obtained by detecting the change of the magnetic field strength. The utility model has the advantages of simple structure, high measuring precision, strong anti-interference capacity, small volume, and broad practicability.
Description
Technical field
The utility model relates to the displacement transducer of measuring brake clearance, is particularly useful for the measurement of mine hoist brake clearance.
Background technology
Brake clearance is the important parameter that influences Braking Performance of Hoist." safety regulations in coal mine " the 427th regulation: lifting gear must be installed the brake clearance protective device, when the brake clearance surpasses the value of regulation, can report to the police automatically or outage automatically.Generally the brake clearance is adjusted into below the 2mm in the engineering reality, feeler gauge commonly used is measured when detecting brake clearance.At present, brake clearance is measured used sensor and mostly is inductive displacement transducer, because inductive displacement transducer is vulnerable to on-the-spot strong electromagnetic, so measuring error is bigger.
The utility model content
The purpose of this utility model is according to the weak point that exists in the prior art, and a kind of measuring accuracy height is provided, and antijamming capability is strong, and volume is little, the displacement transducer of the measurement brake clearance that cost is low.
For achieving the above object, displacement transducer of the present utility model is made of cover, front end end cover, sounding rod, Hall element and circuit board thereof, spring, magnet steel and aviation plug in rear end cap, overcoat, the copper, wherein: be set in the overcoat in the copper, the sounding rod rear portion is located in the copper and also is threaded togather with it in the cover, overcoat is stretched out in the front portion of sounding rod, and it is fixing on the coat that front end end cover passes the sounding rod head threads; Rear end cap is located at the rear end of overcoat, and Hall element and circuit board thereof and spring are located at the rear end cap bottom, and its circuit board leads is drawn by the aviation plug that is located at the rear end cap bottom, and the spring other end is enclosed within on the sounding rod, and magnet steel is located in the groove of sounding rod afterbody.
Cover is axially arranged with gathering sill with the overcoat surface of contact in the described copper, and outer the putting of corresponding gathering sill position is provided with the register pin that can slide along the gathering sill front and back; The head of described sounding rod is provided with and prevents that the stuck or measuring staff of its motion is diastrophic by steel ball sleeve be located at the rolling body that the steel ball in the steel ball sleeve is formed.
Displacement transducer of the present utility model is applicable to the measurement of mine hoist brake clearance.Pressing closer the brake shoe seat by sounding rod under the effect of spring, along with the brake shoe seat moves together, be provided with magnet steel in the inner chamber of sounding rod rear end, magnet steel is just along with sounding rod moves together.A Hall element is placed in the sensor bottom, and when magnet steel moved along with sounding rod, the magnetic field intensity that acts on the Hall element changed, and magnetic field intensity changes and is proportional to the variation of displacement, has just obtained displacement by detecting this change of magnetic field strength.It is simple in structure, and is easy for installation, the measuring accuracy height, and antijamming capability is strong, and volume is little, and is sturdy and durable, and price is lower, has practicality widely.
Description of drawings
Accompanying drawing is the structural drawing that the utility model is measured the displacement transducer of brake clearance.
Among the figure: 1-rear end cap, cover in the 2-overcoat, 3-copper, 4-front end end cover, 5-sounding rod, 6-steel ball sleeve, 7-steel ball, 8-Hall element, 9-spring, 10-magnet steel, 11 1 register pins, 12-aviation plug.
Embodiment
Below in conjunction with the embodiment in the accompanying drawing the utility model is further described:
Shown in the accompanying drawing, displacement transducer by overlap 3 in rear end cap 1, overcoat 2, the copper, front end end cover 4, sounding rod 5, steel ball sleeve 6, steel ball 7, Hall element and circuit board 8, spring 9, magnet steel 10, register pin 11 and aviation plug 12 constitute.Rear end cap 1, overcoat 2 and front end end cover 4 adopt stainless steel material, constitute the firm shell of sensor, effectively prevent the magnetic diffusion of inner magnet steel 10 simultaneously.Magnet steel 10 is installed in the cavity of sounding rod 5 rear ends.Cover 3 effectively prevents peripheral strong electromagnetic by being threaded togather with cover 3 in the copper in sounding rod 5 and the copper.The front end of spring 9 is installed in sounding rod 5 and overlaps in 3 annuluses that form with copper is interior, and the rear end heads on rear end cap 1, makes sounding rod 5 have from reset function.The front end of sounding rod 5 is installed steel ball 7, prevents effectively that on the one hand sounding rod 5 motions are stuck, and the radial motion of brake shoe can not cause sounding rod flexural deformation yet on the other hand.Cover 3 outer surface grooves cooperate in register pin 11 and the copper, prevent that sounding rod 5 from freely rotating.Hall element and circuit board 8 thereof also are installed on the rear end cap 1, and circuit board leads is drawn by aviation plug 12.
Claims (3)
1. measure the displacement transducer of brake clearance, it is characterized in that: it is made of cover (3), front end end cover (4), sounding rod (5), Hall element and circuit board (8), spring (9), magnet steel (10) and aviation plug (12) in rear end cap (1), overcoat (2), the copper, wherein: cover (3) is located in the overcoat (2) in the copper, sounding rod (5) rear portion is located in the copper and also is threaded togather with it in the cover (3), overcoat (2) is stretched out in the front portion of sounding rod (5), and front end end cover (4) passes sounding rod (5) head threads and is fixed on the overcoat (2); Rear end cap (1) is located at the rear end of overcoat (2), Hall element and circuit board thereof (8) and spring (9) are located at rear end cap (1) bottom, its circuit board leads is drawn by the aviation plug (12) that is located at rear end cap (1) bottom, spring (9) other end is enclosed within on the sounding rod (5), and magnet steel (10) is located in the groove of sounding rod (5) afterbody.
2. the displacement transducer of measurement brake clearance according to claim 1, it is characterized in that: cover (3) is axially arranged with gathering sill with overcoat (2) surface of contact in the described copper, and the overcoat (2) of corresponding gathering sill position is provided with can be along the register pin (11) of slip before and after the gathering sill.
3. the displacement transducer of measurement brake clearance according to claim 1 is characterized in that: the head of described sounding rod (5) is provided with and prevents that the stuck or measuring staff of its motion is diastrophic by steel ball sleeve (6) be located at the rolling body that the interior steel ball (7) of steel ball sleeve (6) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200359857U CN201037764Y (en) | 2007-04-12 | 2007-04-12 | Displacement sensor for measuring gap of brake block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200359857U CN201037764Y (en) | 2007-04-12 | 2007-04-12 | Displacement sensor for measuring gap of brake block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201037764Y true CN201037764Y (en) | 2008-03-19 |
Family
ID=39210279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200359857U Expired - Fee Related CN201037764Y (en) | 2007-04-12 | 2007-04-12 | Displacement sensor for measuring gap of brake block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201037764Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788570A (en) * | 2012-08-06 | 2012-11-21 | 山东黄金矿业股份有限公司新城金矿 | On-line monitor for deformation of coal mine shaft guide |
| CN102840973A (en) * | 2012-09-07 | 2012-12-26 | 太原鹏跃电子科技有限公司 | Stress testing device for brake adjuster |
| CN103279065A (en) * | 2013-06-21 | 2013-09-04 | 济钢集团有限公司 | Large-scale drive motor bearing bush detecting system |
| CN104930962A (en) * | 2015-06-29 | 2015-09-23 | 浙江工商大学 | An irregular goods transport non-contact displacement detection apparatus |
| CN105783688A (en) * | 2016-02-26 | 2016-07-20 | 清华大学 | Displacement meter servo calibration system |
| CN106949826A (en) * | 2015-09-25 | 2017-07-14 | 通用电气公司 | Recognize the wheel phyllomorphosis in turbine |
| CN107462199A (en) * | 2017-08-08 | 2017-12-12 | 武汉理工光科股份有限公司 | A kind of scalable anti-offset lossless support displacement monitoring device |
| CN108759646A (en) * | 2018-06-29 | 2018-11-06 | 广州华研精密机械股份有限公司 | A kind of displacement measuring device |
| CN108895955A (en) * | 2018-05-22 | 2018-11-27 | 江阴林格科技有限公司 | DVVA specialized compact hall displacement transducer and its assembly method |
| CN109506563A (en) * | 2018-11-07 | 2019-03-22 | 上海工业自动化仪表研究院有限公司 | Pivoting support radial clearance and flank of tooth jitter detection apparatus and method |
| CN110465886A (en) * | 2019-09-16 | 2019-11-19 | 武汉驿路通科技股份有限公司 | A kind of precise finiss polishing clamp |
| CN114322880A (en) * | 2021-12-06 | 2022-04-12 | 中铁第四勘察设计院集团有限公司 | Displacement monitoring device and displacement monitoring method for bridge support |
-
2007
- 2007-04-12 CN CNU2007200359857U patent/CN201037764Y/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788570A (en) * | 2012-08-06 | 2012-11-21 | 山东黄金矿业股份有限公司新城金矿 | On-line monitor for deformation of coal mine shaft guide |
| CN102788570B (en) * | 2012-08-06 | 2014-07-09 | 山东黄金矿业股份有限公司新城金矿 | On-line monitor for deformation of coal mine shaft guide |
| CN102840973A (en) * | 2012-09-07 | 2012-12-26 | 太原鹏跃电子科技有限公司 | Stress testing device for brake adjuster |
| CN102840973B (en) * | 2012-09-07 | 2015-03-11 | 太原鹏跃电子科技有限公司 | Stress testing device for brake adjuster |
| CN103279065A (en) * | 2013-06-21 | 2013-09-04 | 济钢集团有限公司 | Large-scale drive motor bearing bush detecting system |
| CN103279065B (en) * | 2013-06-21 | 2015-11-04 | 济钢集团有限公司 | A kind of large-scale drive motor bearing shell detection system |
| CN104930962A (en) * | 2015-06-29 | 2015-09-23 | 浙江工商大学 | An irregular goods transport non-contact displacement detection apparatus |
| CN106949826A (en) * | 2015-09-25 | 2017-07-14 | 通用电气公司 | Recognize the wheel phyllomorphosis in turbine |
| CN105783688A (en) * | 2016-02-26 | 2016-07-20 | 清华大学 | Displacement meter servo calibration system |
| CN107462199A (en) * | 2017-08-08 | 2017-12-12 | 武汉理工光科股份有限公司 | A kind of scalable anti-offset lossless support displacement monitoring device |
| CN108895955A (en) * | 2018-05-22 | 2018-11-27 | 江阴林格科技有限公司 | DVVA specialized compact hall displacement transducer and its assembly method |
| CN108895955B (en) * | 2018-05-22 | 2020-01-24 | 江阴林格科技有限公司 | Compact Hall displacement sensor special for DVVA and assembling method thereof |
| CN108759646A (en) * | 2018-06-29 | 2018-11-06 | 广州华研精密机械股份有限公司 | A kind of displacement measuring device |
| CN109506563A (en) * | 2018-11-07 | 2019-03-22 | 上海工业自动化仪表研究院有限公司 | Pivoting support radial clearance and flank of tooth jitter detection apparatus and method |
| CN109506563B (en) * | 2018-11-07 | 2024-02-27 | 上海工业自动化仪表研究院有限公司 | Slewing bearing radial clearance and tooth surface runout detection device and method |
| CN110465886A (en) * | 2019-09-16 | 2019-11-19 | 武汉驿路通科技股份有限公司 | A kind of precise finiss polishing clamp |
| CN110465886B (en) * | 2019-09-16 | 2024-03-01 | 武汉驿路通科技股份有限公司 | Precision grinding and polishing clamp |
| CN114322880A (en) * | 2021-12-06 | 2022-04-12 | 中铁第四勘察设计院集团有限公司 | Displacement monitoring device and displacement monitoring method for bridge support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20110412 |