CN106594130B - A kind of method of on-line checking Disk Brake normal pressure - Google Patents
A kind of method of on-line checking Disk Brake normal pressure Download PDFInfo
- Publication number
- CN106594130B CN106594130B CN201710042031.7A CN201710042031A CN106594130B CN 106594130 B CN106594130 B CN 106594130B CN 201710042031 A CN201710042031 A CN 201710042031A CN 106594130 B CN106594130 B CN 106594130B
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- Prior art keywords
- brake
- temperature
- disk brake
- compensating plate
- working strain
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D2066/005—Force, torque, stress or strain
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Measurement Of Force In General (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of methods of on-line checking Disk Brake normal pressure, 2 groups of working strain gauges and temperature-compensating plate are embedded in the adjusting nut of disk brake, working strain gauge is connected into half-bridge with temperature-compensating plate for detecting the brake positive pressure of disk brake and connecting with conditioning circuit, conditioning circuit is transferred to host computer after handling strain signal, realize the on-line checking to Disk Brake normal pressure.On-line checking Disk Brake normal pressure method disclosed by the invention can detect the brake positive pressure of disk brake directly, online, and can guarantee that sensor can be demarcated online, in place, reduce the disturbing factor in detection.
Description
Technical field
The invention belongs to a kind of online test methods, and in particular to a kind of on-line checking Disk Brake normal pressure
Method.
Background technique
The safety and reliability that mine hoist constant deceleration brake runs elevator is of great significance, and disc type system
Dynamic device brake positive pressure is the key factor for determining deceleration, therefore, is accurately existed to the progress of Disk Brake normal pressure
Line detection is to ensure that the prerequisite reliably braked.Currently, the brake positive pressure of disk brake is mainly by disc type system
Sensor is installed in the disc spring seat of dynamic device to detect, disc spring seat is to be tightly attached to oil cylinder end face by pretightning force by disc spring to be determined
Position, install sensor after, in the detection process, the external connection of butterfly spring seat inner sensor often due to the wriggling of spring base and
Damage；In addition, sensor is before use, must be demarcated, but sensor is once mounted in disc spring seat, is at closed
State can not carry out calibration online, in place, have to carry out off-line calibration, and its forced position of the sensor of off-line calibration and side
Formula and consistency when practical application are poor, greatly reduce Surveying Actual Precision and the accuracy of sensor, even result in survey
Measure the distortion of data.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide a kind of side of on-line checking Disk Brake normal pressure
Method, this method can detect the brake positive pressure of disk brake directly, online, and can guarantee sensor can it is online,
Calibration in place, reduces the disturbing factor in detection.
A kind of method of on-line checking Disk Brake normal pressure is buried in the adjusting nut of disk brake
2 groups of working strain gauges and temperature-compensating plate, working strain gauge and temperature-compensating plate are connected into half-bridge, and 2 groups of half-bridge circuits are along axis pair
Claim arrangement, working strain gauge and temperature-compensating plate are connect with conditioning circuit, so as to the disc type brake for detecting working strain gauge
The brake positive pressure of device is transferred to host computer after handling by conditioning circuit, realize to the online of Disk Brake normal pressure
Detection.
The step of 2 groups of working strain gauges and temperature-compensating plate are buried in the adjusting nut are as follows: along adjusting nut inner hole
Axis direction, from its whorl side to the groove of run-out(of thread), its diameter of bore is expanded into 4-6mm, working strain gauge and temperature
Compensating plate is placed on mutual vertically on the adjusting nut inner wall after borehole enlargement, and in working strain gauge and temperature-compensating plate and
Its connecting line surface applies protective rubber；Then one circular ring shape tight loop is set, make its diameter of bore and adjusting nut it is original in
Bore dia is identical, wall thickness 3.9-5.9mm, by tight loop be placed on adjusting nut it is expanding after inner hole in, and outside tight loop
It wall and is coated between the working strain gauge of protective rubber and temperature-compensating plate and fills glue, to fix tight loop；In adjustment spiral shell
Female groove processes a radial through-hole, working strain gauge and temperature-compensating plate and the connecting line of conditioning circuit passes through radial through-hole
It draws, installs protective case outside connecting line additional.
The present invention has the advantages that
1. a kind of method of on-line checking Disk Brake normal pressure of the present invention, system is directly detected by strain measurement
The brake positive pressure of dynamic device brake shoe and brake disc, avoids the external line loss wriggled together in actual measurement due to spring base
Bad and measurement error caused by the factors such as can not demarcating online, in place, improves the accuracy of detection, further improves
Detection efficiency.
It, can be live straight 2. working strain gauge and the embedded of temperature-compensating plate are realized on former adjusting nut, convenient for disassembly and assembly
Replacement is connect, using the confined space of existing disc brake of mine hoist structure, it is original to have no need to change existing brake
The structure size of performance parameter and other parts can reach direct monitoring brake positive pressure, substantially increase elevator disc type system
The reliability of dynamic device.
Detailed description of the invention
Fig. 1 is disc-like brake structure figure after installment work foil gauge and temperature-compensating plate of the invention；
Fig. 2 is the structure chart of adjusting nut after installment work foil gauge and temperature-compensating plate in the present invention；
Fig. 3 is the half-bridge circuit figure of working strain gauge of the present invention and temperature-compensating plate；
Fig. 4 is the Force principle schematic diagram of disk brake of the present invention.
In figure: 1- brake disc；2- brake shoe；3- brakes body；4- butterfly spring；5- adjusting nut；6- conditioning circuit；7- is protected
Sheath；8- oil cylinder cover；9- oil cylinder；10- connection bolt；11- piston；12- working strain gauge；13- temperature-compensating plate；14- fastening
Circle；15- spring base.
Specific embodiment
With reference to the accompanying drawing, the present invention is elaborated.
As shown in figures 1 and 3, a kind of method of on-line checking Disk Brake normal pressure, in disk brake
2 groups of working strain gauges 12 and temperature-compensating plate 13 are buried in adjusting nut 5, working strain gauge 12 and temperature-compensating plate 13 are connected into half
Bridge, 2 groups of half-bridge circuits arrange that working strain gauge 12 and temperature-compensating plate 13 are connect with conditioning circuit 6 along axisymmetrical, to incite somebody to action
The brake positive pressure for the disk brake that working strain gauge 12 detects is transferred to host computer after handling by conditioning circuit 6, real
Now to the on-line checking of Disk Brake normal pressure.
As shown in Fig. 2, the step of burying 2 groups of working strain gauges 12 and temperature-compensating plate 13 in the adjusting nut 5 are as follows: edge
The axis direction of 5 inner hole of adjusting nut, from its whorl side to the groove of run-out(of thread), its diameter of bore is expanded into 4-6mm,
Working strain gauge 12 and temperature-compensating plate 13 are placed on mutual vertically on 5 inner wall of adjusting nut after borehole enlargement, and in work
Make foil gauge 12 and temperature-compensating plate 13 and its connecting line surface coating protective rubber；Then one circular ring shape tight loop 14 is set, make
Its diameter of bore is identical as the original diameter of bore of adjusting nut 5, wall thickness 3.9-5.9mm, and tight loop 14 is placed on tune
In inner hole after whole nut 5 is expanding, and in 14 outer wall of tight loop and the working strain gauge 12 and the temperature-compensating that are coated with protective rubber
Glue is filled between piece 13, to fix tight loop 14；A radial through-hole is processed in the groove of 5 run-out(of thread) of adjusting nut,
The connecting line of working strain gauge 12 and temperature-compensating plate 13 and conditioning circuit is drawn by radial through-hole, installs protection outside connecting line additional
Set.
As shown in figure 4, adjusting nut 5 is connect by screw thread with braking body 3, braking body 3 is bolted on ground
On face, if brake shoe 1 is F to the normal pressure of brake discN, the elastic force of butterfly spring 4 is Fy, the oil pressure that piston 11 is subject to is FZ,
Then:
The initial stage is braked, disk brake receives braking instruction, before brake shoe 2 is not contacted with brake disc 1, oil pressure
P is gradually reduced, the resilient force piston 11 and brake shoe 2 of butterfly spring 4, is gradually moved to brake disc 1 under the action of oil pressure P
It is dynamic, in the resilient force to the piston 11 of connection brake shoe of spring 4, and pass through the inner face that piston 11 is transmitted to oil cylinder 9；Together
When, opposing spring force suffered by spring base 15 is applied to the outer end face of oil cylinder 9, at this point, the power that adjusting nut 5 is subject to is F=FN
=Fy-FZ=0；
During braking patch lock, brake shoe 2 is attached in the disk of brake disc 1, at this point, the resultant force that adjusting nut 5 is subject to, that is, make
Dynamic normal pressure is F=FN=Fy-FZ；
During declutching, oil pressure P is gradually risen, and brake shoe 2 is made gradually to leave brake disc 1, when not being kept completely separate, adjustment
Nut 5 is still by brake positive pressure F=FN=Fy-FZEffect；When brake disc and brake shoe 1 disengage, spring force FyWith oil pressure
Power FZEqual, the resultant force that adjusting nut 5 is subject to is 0.
Adjusting nut 5 due to being equipped with working strain gauge 12 and temperature-compensating plate 13 be located at oil cylinder 9 and oil cylinder cover 8 it
Between, therefore, in braking process, brake shoe 2 is attached in the disk of brake disc 1, effect of the adjusting nut 5 by power F, so that work
Foil gauge 12 deforms, and can directly measure brake positive pressure, meanwhile, temperature-compensating plate 13 can carry out temperature benefit to active gage
It repays, eliminates the influence of environment temperature.
Claims (2)
1. a kind of method of on-line checking Disk Brake normal pressure, it is characterised in that: in the adjustment spiral shell of disk brake
2 groups of working strain gauges and temperature-compensating plate are buried in mother, working strain gauge and temperature-compensating plate are connected into half-bridge, 2 groups of half-bridge circuits
Arrange that working strain gauge and temperature-compensating plate are connect with conditioning circuit, so as to detect working strain gauge along axisymmetrical
The brake positive pressure of disk brake is transferred to host computer after handling by conditioning circuit, realize to Disk Brake positive pressure
The on-line checking of power；During lock is pasted in braking, the brake shoe of disk brake is attached in the disk of brake disc disk brake, institute
Survey brake positive pressure F=spring force FyOil pressure FZ；During declutching, the brake shoe of brake disc and disk brake is disengaged
When, spring force FyWith oil pressure FZEqual, surveyed brake positive pressure F is 0.
2. a kind of method of on-line checking Disk Brake normal pressure according to claim 1, it is characterised in that: institute
State and bury 2 groups of working strain gauges in adjusting nut and the step of temperature-compensating plate are as follows: along adjusting nut inner hole axis direction, from
Its diameter of bore is expanded 4-6mm, working strain gauge and temperature-compensating plate are mutually hung down to the groove of run-out(of thread) by its whorl side
On adjusting nut inner wall after directly being placed on borehole enlargement, and on working strain gauge and temperature-compensating plate and its connecting line surface
Apply protective rubber；Then one circular ring shape tight loop is set, keep its diameter of bore identical as the original diameter of bore of adjusting nut, wall
Thickness is 3.9-5.9mm, by tight loop be placed on adjusting nut it is expanding after inner hole in, and ring outer wall and be coated with protection in fastening
Glue is filled between the working strain gauge and temperature-compensating plate of glue, to fix tight loop；In the recessed of adjusting nut run-out(of thread)
The connecting line that a radial through-hole, working strain gauge and temperature-compensating plate and conditioning circuit are processed at slot is drawn by radial through-hole,
Install protective case outside connecting line additional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042031.7A CN106594130B (en) | 2017-01-20 | 2017-01-20 | A kind of method of on-line checking Disk Brake normal pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042031.7A CN106594130B (en) | 2017-01-20 | 2017-01-20 | A kind of method of on-line checking Disk Brake normal pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106594130A CN106594130A (en) | 2017-04-26 |
| CN106594130B true CN106594130B (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710042031.7A Active CN106594130B (en) | 2017-01-20 | 2017-01-20 | A kind of method of on-line checking Disk Brake normal pressure |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918419A (en) * | 2017-05-15 | 2017-07-04 | 中国工程物理研究院总体工程研究所 | Disk Brake input pressure measurement sensor |
| CN112037500A (en) * | 2020-07-21 | 2020-12-04 | 江苏国茂减速机股份有限公司 | Speed reducer capable of automatically judging fault, elevator and fault automatic judging method |
| CN113374816B (en) * | 2021-06-22 | 2022-11-01 | 石家庄五龙制动器股份有限公司 | Braking friction force detection device of disc brake |
| CN113446339B (en) * | 2021-07-06 | 2023-03-21 | 石家庄五龙制动器股份有限公司 | Brake capable of detecting braking torque |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5651430A (en) * | 1992-03-31 | 1997-07-29 | Rancourt; Claude | Disc brake assembly |
| CN201059327Y (en) * | 2007-07-17 | 2008-05-14 | 平顶山煤业(集团)有限责任公司 | Disk brake monitoring braking positive pressure in braking condition |
| CN201306401Y (en) * | 2008-10-10 | 2009-09-09 | 中国矿业大学 | Disc brake for monitoring and braking positive pressure |
| CN201288041Y (en) * | 2008-10-10 | 2009-08-12 | 中国矿业大学 | Butterfly spring seat sensor for disk brake monitoring brake positive pressure |
| CN202522357U (en) * | 2012-04-23 | 2012-11-07 | 河南理工大学 | Sensor for detecting positive braking pressure of disc brake |
| CN102680668B (en) * | 2012-05-11 | 2015-08-05 | 河海大学 | A kind of proving installation and assay method measuring different-thickness concrete cracking resistance in length of time morning |
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- 2017-01-20 CN CN201710042031.7A patent/CN106594130B/en active Active
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| CN106594130A (en) | 2017-04-26 |
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