CN203487444U - Milling cutter fault detection and protection device of pavement milling machine - Google Patents
Milling cutter fault detection and protection device of pavement milling machine Download PDFInfo
- Publication number
- CN203487444U CN203487444U CN201320620961.3U CN201320620961U CN203487444U CN 203487444 U CN203487444 U CN 203487444U CN 201320620961 U CN201320620961 U CN 201320620961U CN 203487444 U CN203487444 U CN 203487444U
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- milling
- milling cutter
- milling machine
- controller
- pavement
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Abstract
The utility model discloses a milling cutter fault detection and protection device of a pavement milling machine. The milling cutter fault detection and protection device comprises a controller and a speed reducer capable of directly driving a milling drum to act, wherein the speed reducer is provided with a sensing device capable of detecting the torque of the milling drum, and a signal output part of the sensing device is connected with a first signal transmitter module which is input to the inside of the controller through an A/D (Analog-to-Digital) conversion module; an instruction output end of the controller is used for outputting an instruction signal to a proportional electromagnetic valve respectively through a D/A (Digital-to-Analog) conversion module and a second signal transmitter module, and the proportional electromagnetic valve is used for controlling the lifting actions of supporting legs of the milling machine through a supporting leg oil cylinder. The milling cutter fault detection and protection device has the advantages that the state of the milling cutter can be monitored and protected, and a milling cutter fault can be prevented and found in time, so that the quality of a milled pavement is ensured, the operation cost of the milling machine is reduced, and the milling efficiency of the milling machine is increased.
Description
Technical field
The utility model relates to a kind of fault detect of milling cutter and protective device of pavement milling machine, belongs to field of road engineering machinery technical field.
Background technology
Existing pavement milling machine milling cutter is arranged on milling and planing drum, and milling and planing drum two ends are connected with fuselage with bearing by reductor respectively.Transmission of power, to reductor, drives milling and planing drum to rotate by reductor, and milling cutter circular motion, realizes milling road surface, and the milling pin degree of depth of milling work is between 0-30cm.
At present in milling machine system, owing to there is no detection, the protection system of milling cutter.In milling process, if run into, under road surface, contain reinforcing bar or other metal landfill materials, because the strength deficiency of milling cutter is to cut this type of hard thing, therefore can cause the situations such as milling cutter, tool rest damage.Extreme case even can cause the damage of milling cutter on a periphery or tool rest, and nearly 5-10 is left and right only.And occur after the damage of milling cutter or tool rest, staff is generally also difficult for finding in time this type of fault, must pass through to observe road surface, or open milling working chamber, observe milling and agitate the damage that could find milling cutter or tool rest, and now milling machine has been nonserviceabled lower work a period of time.Milling pavement quality in this period of time can be greatly affected, and owing to having damaged some milling cuttves, tool rest, in milling process, milling cutter and tool rest near damage milling cutter, tool rest also can produce abnormal wearing and tearing, produce and damage.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of milling cutter fault of can preventing and find in time; thereby guarantee the quality on milling road surface; reduce the running cost of milling machine, improve the fault detect of milling cutter and the protective device of the pavement milling machine of milling machine milling efficiency.
In order to solve the problems of the technologies described above, the fault detect of milling cutter and the protective device of pavement milling machine of the present utility model, comprise a controller and one directly driving milling agitate the reducer of work, the sensing device that can detect milling and planing drum torque is installed on reducer, the segment signal output of sensing device connects a first signal transmitting module, and signal transmitting module is input in controller by an A/D modular converter; The instruction output end of controller outputs to command signal on a proportion magnetic valve through a secondary signal transmitting module by a D/A modular converter again, and proportion magnetic valve is controlled milling machine supporting leg lifting action by support oil cylinder.
On described controller, be connected with and can store the data storage cell that detects data.
On described controller, be connected with alarm module.
On described controller, be connected with the display module showing detecting data.
The utility model has the advantage of:
By the sensing device that arranges can be in milling machine milling and planing drum running the fluctuation status of monitor force or torque value, thereby the duty of reflection milling cutter is found the mechanical breakdowns such as milling cutter damage in time, gets rid of mechanical movement hidden danger; Feedback signal is passed through D/A modular converter to secondary signal transmitting module; produce signal controlling proportion magnetic valve; control the oil pressure of support oil cylinder, make the action of milling machine supporting leg, lift fuselage; milling and planing drum is also mentioned immediately; complete the monitoring state of milling cutter and protection, prevention is found milling cutter fault with timely, thereby has guaranteed the quality on milling road surface; reduce the running cost of milling machine, improved milling machine milling efficiency.
Accompanying drawing explanation
Fig. 1 is the milling cutter fault detect of the utility model pavement milling machine and the theory diagram of protective device.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the fault detect of milling cutter and the protective device of pavement milling machine of the present utility model are described in further detail.
As shown in the figure, the fault detect of milling cutter and the protective device of pavement milling machine of the present utility model, comprise a controller 1 and one directly driving milling agitate the reducer 2 of work, on controller, connect power supply, the sensing device 3 that can detect milling and planing drum torque is installed on reducer 2, can gaging pressure or value period of waves of moment of torsion by sensing device; The segment signal output of sensing device 3 connects a first signal transmitting module 4, and signal transmitting module 4 is input in controller 1 by an A/D modular converter 5; The instruction output end of controller 1 outputs to command signal on a proportion magnetic valve 8 through a secondary signal transmitting module 7 by a D/A modular converter 6 again, proportion magnetic valve 8 is controlled milling machine supporting leg 10 lifting actions by support oil cylinder 9, is connected with to store to detect data storage cell 11, the alarm module 12 of data and the display module 13 that can show detecting data on controller 1; Wherein, in the utility model, said first signal transmitting module, secondary signal transmitting module, A/D and D/A modular converter, controller, data storage cell, power supply are all installed in electrical control cubicles, display module and alarm module (containing sound and light alarm) are installed on control panel, and control panel is positioned at the upper surface of electrical control cubicles.
Its operating principle is as follows:
Pressure signal while detecting milling road surface by sensor on reducer, this pressure signal has reflected the moment of torsion of milling and planing drum, then by first signal transmitting module, convert standard current signal to, after A/D modular converter, deliver to controller, according to the result of controller, carry out Storage & Display again, if there is abnormal information, send alarm signal, send protection control signal to D/A modular converter simultaneously, through secondary signal transmitting module, convert the signal of telecommunication to and give proportion magnetic valve, control the action of support oil cylinder, mention milling machine fuselage, make milling machine knife leave road surface.
Under milling machine nominal situation, the moment of torsion of reducer normally should be in a fixing scope, so first measure the data of normal work on software, set up Fault Diagnosis Database, use high level language diagnostic data base system, set up milling moment of torsion fault model, by great many of experiments pressure data checking feasibility, the torque range when providing milling machine and normally working; Then, design intelligent fuzzy algorithm, can carry out filtering, characteristic signal extraction to the signal detecting, then compare with normal signal, reduces comparison error.When milling machine actual working state, with sensor, the moment of torsion of milling is measured, carry out fuzzy comparison with the data in database, and reset data, according to upgrade in time the comparison data of database of real-time working condition, if find that off-limits unusual fluctuations appear in data continuously, provide warning message, milling cutter fault is described, promote milling machine fuselage simultaneously, make milling to leaving road surface, the timely handling failure information of convenient operation personnel.
Thus according to the historical data of milling and planing drum moment of torsion operation, draw normal operation data fluctuations scope, and in normal duty, constantly store, revised data, set up slip condition database, then detect real time data and compare with sensor, simultaneously, the data value in normal fluctuation range constantly substitutes last comparison value in comparison, last data deposits database in, shows currency and reference value simultaneously on control panel.The continuous appearance of value that exceeds term of reference as found is abnormal, illustrates that milling goes wrong, and feedback signal is delivered to proportion magnetic valve, controls oil cylinder lift fuselage, makes milling cutter leave road surface; This system can provide real time inspection and historical data, curve simultaneously.
The fault detect of milling cutter and the protective device of pavement milling machine of the present utility model, utilize advanced, practical, reliable sensor, develop effective Mathematical Modeling, design intelligent diagnostics algorithm, by Special vehicle-mounted controller, to the operation of milling cutter and malfunction carry out Real-Time Monitoring and with diagnosis; By effective sensor, replace operating personnel's observation, utilize real-time data acquisition, processor and intelligent algorithm at a high speed to monitor in real time milling cutter state, realize the accurate protection of milling cutter.
Claims (4)
1. the fault detect of milling cutter and the protective device of a pavement milling machine, it is characterized in that: comprise a controller (1) and one directly driving milling agitate the reducer (2) of work, the sensing device (3) that can detect milling and planing drum torque is installed on reducer (2), the segment signal output of sensing device (3) connects a first signal transmitting module (4), and signal transmitting module (4) is input in controller (1) by an A/D modular converter (5); It is upper that the instruction output end of described controller (1) outputs to a proportion magnetic valve (8) through a secondary signal transmitting module (7) by command signal again by a D/A modular converter (6), and proportion magnetic valve (8) is controlled milling machine supporting leg (10) lifting action by support oil cylinder (9).
2. according to the fault detect of milling cutter and the protective device of pavement milling machine claimed in claim 1, it is characterized in that: on described controller (1), be connected with and can store the data storage cell (11) that detects data.
3. according to the fault detect of milling cutter and the protective device of pavement milling machine claimed in claim 1, it is characterized in that: on described controller (1), be connected with alarm module (12).
4. according to the fault detect of milling cutter and the protective device of pavement milling machine claimed in claim 1, it is characterized in that: on described controller (1), be connected with the display module (13) showing detecting data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620961.3U CN203487444U (en) | 2013-10-09 | 2013-10-09 | Milling cutter fault detection and protection device of pavement milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620961.3U CN203487444U (en) | 2013-10-09 | 2013-10-09 | Milling cutter fault detection and protection device of pavement milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203487444U true CN203487444U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320620961.3U Expired - Fee Related CN203487444U (en) | 2013-10-09 | 2013-10-09 | Milling cutter fault detection and protection device of pavement milling machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203487444U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541297A (en) * | 2013-10-09 | 2014-01-29 | 镇江市高等专科学校 | Milling and planning tool fault detection and protection device of pavement milling machine |
| WO2017011160A1 (en) * | 2015-07-10 | 2017-01-19 | Caterpillar Paving Products Inc. | Cutting bit monitoring system |
-
2013
- 2013-10-09 CN CN201320620961.3U patent/CN203487444U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541297A (en) * | 2013-10-09 | 2014-01-29 | 镇江市高等专科学校 | Milling and planning tool fault detection and protection device of pavement milling machine |
| WO2017011160A1 (en) * | 2015-07-10 | 2017-01-19 | Caterpillar Paving Products Inc. | Cutting bit monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20161009 |