CN100460844C - Braking moment involute shaped measurement mechanism of large-sized brake - Google Patents
Braking moment involute shaped measurement mechanism of large-sized brake Download PDFInfo
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- CN100460844C CN100460844C CNB2007100252040A CN200710025204A CN100460844C CN 100460844 C CN100460844 C CN 100460844C CN B2007100252040 A CNB2007100252040 A CN B2007100252040A CN 200710025204 A CN200710025204 A CN 200710025204A CN 100460844 C CN100460844 C CN 100460844C
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- lifting jack
- brake
- braking moment
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Abstract
A kind of evolvent-style measure device of brake moment of large-scale arresting gear is made up of evolvent-style bearing device set on the braken working machine disk, the lifting jack set whose axial line tegents with the braken working machine disk and which is set under the evolvent-style bearing device, the measuring-power device and fluid pressure device connecting the oil pressure chamber of the lifting jack. The pin-lift of lifting jack is on the face of evolvent-style bearing device. To push the evolvent-style bearing device with the pin-lift, during the process to push arresting gear disk rotation, the pushing direct is constant and tangents with the working disk. This device can not only measure the static frictional moment but also measure the dynamic moment, and can be used for measuring the brake moment of the band conveyor disc brake machine and the mine elevating conveyor widely, convenient for field service unit to usually measure brake moment, when braking the checking elevating conveyor arrester completely, whether the total brake moment are greater than the max-static moment, to keep the arresting gear working safely.
Description
Technical field
The present invention relates to braking moment involute shaped measurement mechanism of large-sized brake, be particularly useful for the measurement of hoister braking device braking moment, also be applicable to the measurement of the brake braking force square of other disc lock.
Background technology
" safe coal rules " regulation: when hoister braking device was braked fully, the total braking force square should be greater than 3 times of maximum quiescent load moments.Technical measurement mode commonly used at present is to hold the cylinder of hoister with jack or winch, between jack or winch and elevator drum, connect a disk draw-bar donamometer with wire rope, by jack or winch gradually tense wire rope begin to rotate until elevator drum, the record elevator drum begins to rotate the draw-bar donamometer reading of moment, draws the maximum static friction braking moment.The draw-bar donamometer reading error is bigger in this metering system, only can measure the maximum static friction braking moment, and be difficult to spur the elevator drum uniform rotation, so can not draw the dynamic friction braking moment, jack or winch are installed with operation all inconvenient, are unfavorable for that the hoister applying unit often measures braking moment.
Summary of the invention
The objective of the invention is according to the weak point in the prior art, provide a kind of simple in structure, install with easy to operate, the quiet dynamic friction braking moment of energy measurement, measurement data is braking moment involute shaped measurement mechanism of large-sized brake accurately.
For achieving the above object, braking moment measurement mechanism of the present invention, by be located at involute urve shape pressure part on the working machine disk that is braked, be located at the tangent lifting jack of its axis of involute urve shape pressure part below and the working machine disk that is braked, device for measuring force and the hydraulic means that is connected with lifting jack oil pressure chamber constitutes, the push rod of lifting jack withstands on the involute urve shape face of involute urve shape pressure part.
The involute urve shape of described involute urve shape pressure part is that the cylindrical with the working machine disk that is braked is that base radius processes; The push rod of described lifting jack is provided with roller; Described device for measuring force is made of sensor and coupled data acquisition unit; Described hydraulic means is by the retaining valve that is located on the oil circuit, hydraulic pump and be used to regulate oil circuit flow magnitude proportion surplus valve and constitute.
Braking moment measurement mechanism of the present invention, the principle all tangent with its basic circle according to normal on the involute urve any point, the size of braking moment equals the pressure of oil in the lifting jack and the product of involute urve base radius all the time, when the hoister brake disc was braked, its braking moment can calculate by fuel pressure gage in the lifting jack.Compared with prior art, can not only measure static friction moment, go back the energy measurement dynamic friction torque, when measuring static friction moment, the manual link mechanism that moves lifting jack drives the lifting jack motion, can pass through the device for measuring force reading of data; When measuring dynamic friction torque, the primer fluid pressure device, hydraulic pump charges into hydraulic oil to lifting jack, slowly promotes the brake disc uniform rotation, by the device for measuring force reading of data.It is simple in structure, and volume is little, easily installs, easy to operate, measurement result is accurately reliable, and adaptability is strong, can be widely used in the measurement of colliery Winder Disk Brake braking moment, convenient on-the-spot applying unit is often measured braking moment, guarantees the safe operation of detent.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Among the figure: the working machine disk that 1-is braked, 2-is the open form pressure part gradually, 3-push rod, 4-manual link mechanism, 5-lifting jack, 6-oil pressure sensor, 7-data acquisition unit, 8-retaining valve, 9-hydraulic pump, 10-proportional pressure control valve.
Embodiment
The invention will be further described below in conjunction with the embodiment in the accompanying drawing:
Shown in the accompanying drawing, involute urve shape braking moment measurement mechanism of the present invention, mainly by involute urve shape pressure part 2, lifting jack 5, hydraulic system and dynamometric system four parts are formed.Involute urve shape pressure part 2 usefulness Bolt Connection are on the working machine disk 1 that is braked, and the involute urve shape of involute urve shape pressure part 2 is to be that basic circle processing is manufactured and formed with the working machine disk 1 that is braked.Lifting jack 5 is placed in the below of involute urve shape pressure part 2, and its axis is tangent with the working machine disk 1 that is braked.Lifting jack 5 comprises push rod 3, high-voltage oil cavity joint, manual link mechanism 4, on the push rod 3 roller is housed.Hydraulic system comprises retaining valve 8, hydraulic pump 9 and proportional pressure control valve 10; Dynamometric system comprises oil pressure sensor 6 and data acquisition unit 7.
Principle of work: push rod 3 center lines of mounting strap roller are tangent with the basic circle that forms involute urve shape pressure part 2, push rod 3 with the band roller pushes away involute urve shape pressure part 2, the principle all tangent with its basic circle according to normal on the involute urve any point, in promoting brake disk 1 rotation process, thrust direction remains unchanged always and is tangent with the working machine disk 1 that is braked, so braking moment equals with the thrust of the push rod 2 of roller and the product of working machine disk 1 radius that is braked.Manual link mechanism 4 and two kinds of type of drive of hydraulic pressure feed flow by lifting jack 5, can measure maximum brake stator moment and dynamic brake moment, when measuring maximum brake stator moment, driving manual link mechanism 4 raises oil pressure to begin to rotate until the working machine disk 1 that is braked gradually, the working machine disk 1 that is braked is pushed to rotate and just stops, corresponding oil pressure is raised to maximum and just reduces, because of being pushed on the rotating push-rod, moves by the working machine disk 1 that is braked, the high-voltage oil cavity volume increases oil pressure and reduces suddenly, can measure the maximal value of oil pressure by oil pressure sensor 6 and data acquisition unit 7, it is thrust that oil pressure is taken advantage of in the piston area of the push rod 3 of band roller, can draw maximum brake stator moment.When measuring dynamic brake moment, open hydraulic pump 9, regulate oil pressure by proportional pressure control valve 10 and raise gradually, the oil pressure value when demonstrating the working machine disk 1 that is braked and be pushed uniform rotation by oil pressure sensor 6 and data acquisition unit 7 numerals can draw dynamic brake moment.
Claims (5)
1. braking moment involute shaped measurement mechanism of large-sized brake, it is characterized in that: it is by being located at involute urve shape pressure part (2) on the working machine disk (1) that is braked, being located at its axis of involute urve shape pressure part (2) below lifting jack (5), the device for measuring force that with lifting jack (5) oil pressure chamber be connected and the hydraulic means formation tangent with the working machine disk (1) that is braked, and the push rod (3) of lifting jack (5) withstands on the involute urve shape face of involute urve shape pressure part (2).
2. according to the braking moment involute shaped measurement mechanism of large-sized brake of claim 1, it is characterized in that: the involute urve shape of described involute urve shape pressure part (2) is that the cylindrical with the working machine disk (1) that is braked is that basic circle processes.
3. according to the braking moment involute shaped measurement mechanism of large-sized brake of claim 1, it is characterized in that: the push rod (3) of described lifting jack (5) is provided with roller.
4. according to the braking moment involute shaped measurement mechanism of large-sized brake of claim 1, it is characterized in that: described device for measuring force is made of sensor (6) and coupled data acquisition unit (7).
5. according to the braking moment involute shaped measurement mechanism of large-sized brake of claim 1, it is characterized in that: described hydraulic means is by the retaining valve (8) that is located on the oil circuit, hydraulic pump (9) and be used to regulate oil circuit flow magnitude proportion surplus valve (10) and constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100252040A CN100460844C (en) | 2007-07-17 | 2007-07-17 | Braking moment involute shaped measurement mechanism of large-sized brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100252040A CN100460844C (en) | 2007-07-17 | 2007-07-17 | Braking moment involute shaped measurement mechanism of large-sized brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101082526A CN101082526A (en) | 2007-12-05 |
| CN100460844C true CN100460844C (en) | 2009-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100252040A Expired - Fee Related CN100460844C (en) | 2007-07-17 | 2007-07-17 | Braking moment involute shaped measurement mechanism of large-sized brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100460844C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012295B (en) * | 2010-11-23 | 2012-03-28 | 徐州大恒测控技术有限公司 | Installation method of non-contact involute-shaped braking moment device |
| CN103743519B (en) * | 2014-01-17 | 2015-10-21 | 河南理工大学 | A kind of method and device measuring braking torque for mine hoist base |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0735633A (en) * | 1993-07-20 | 1995-02-07 | Aisin Seiki Co Ltd | Measuring device for damping force |
| CN2208701Y (en) * | 1994-10-11 | 1995-09-27 | 中国矿业大学 | Disc type brake monitering and accidents recording device |
| CN201060076Y (en) * | 2007-07-17 | 2008-05-14 | 平顶山煤业(集团)有限责任公司 | Large-sized braking brake moment involute shape measurement mechanism |
-
2007
- 2007-07-17 CN CNB2007100252040A patent/CN100460844C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0735633A (en) * | 1993-07-20 | 1995-02-07 | Aisin Seiki Co Ltd | Measuring device for damping force |
| CN2208701Y (en) * | 1994-10-11 | 1995-09-27 | 中国矿业大学 | Disc type brake monitering and accidents recording device |
| CN201060076Y (en) * | 2007-07-17 | 2008-05-14 | 平顶山煤业(集团)有限责任公司 | Large-sized braking brake moment involute shape measurement mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 提升机制动力矩测试方法的比较分析. 蒋玉强，金宇街，郭磊.矿山机械. 2003 * |
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| Publication number | Publication date |
|---|---|
| CN101082526A (en) | 2007-12-05 |
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Granted publication date: 20090211 Termination date: 20130717 |