CN214811127U - Electrical protection system of breaking hammer - Google Patents
Electrical protection system of breaking hammer Download PDFInfo
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- CN214811127U CN214811127U CN202120560594.7U CN202120560594U CN214811127U CN 214811127 U CN214811127 U CN 214811127U CN 202120560594 U CN202120560594 U CN 202120560594U CN 214811127 U CN214811127 U CN 214811127U
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Abstract
The utility model discloses an electric protection system of quartering hammer, gather four kinds of signals of tup including digital signal processor, frequency sensor, shock transducer, perpendicular sensor, hydraulic pressure sensor, amplify the back through signal amplifier, the signal after the processing carries out signal processing through frequency judgement device, time-recorder, direction comparator, pressure price comparator, and the signal after will handling sends into digital signal processor, exceeds the parameter setting value, carries out alarm processing and cuts off pilot valve relay power and handles. The system can monitor the continuous working time of the breaking hammer, the knocking state, the direction of the pituitary body and the hydraulic pressure for providing power in real time. When the collected signal of the system is larger than the set value of the system, the system prompts an alarm, and after the system alarms for corresponding time of continuous action, the processor cuts off the power supply of the pilot valve to stop the breaking hammer to work, so that the breaking hammer is protected.
Description
Technical Field
The utility model relates to an electrical protection system is exactly an electrical protection system of quartering hammer.
Background
The hydraulic breaking hammer has the characteristics of low noise, excellent breaking performance, energy conservation, environmental protection and the like, and becomes an important operation tool of the excavator. The prime power of the excavator hydraulic breaking hammer is derived from the pressure provided by an excavator hydraulic system, hydraulic energy is converted into mechanical striking kinetic energy in the motion process, and the mechanical striking kinetic energy can more effectively break stones and rocks in engineering construction and mine ore breaking, so that the working efficiency is improved.
The main components of the breaking hammer comprise a piston rod, a reversing valve, a hammer body and the like, the breaking hammer utilizes the pressure provided by an equipment pump station to push a drill rod after compressing nitrogen, stones and rocks are broken in engineering construction,
the phenomena of misoperation, improper maintenance and the like can cause the faults of abrasion of a working valve, burst of a pipeline, local overheating of hydraulic oil and the like of the breaking hammer. The reasons for this are that the technology configuration is not reasonable, and the field management is not proper.
The following problems mainly exist in the use process of the breaking hammer:
1. and (5) idle striking by a breaking hammer.
When the breaking hammer is in idle stroke, the breaking hammer can shake, so that the machine body is abnormally damaged.
2. The breaking hammer operates in an improper direction.
When the quartering hammer works, the drill rod stress direction English striking body is at an angle of 90 degrees, and when the direction deviation is large, the drill rod can be damaged and the piston can be influenced.
3. The continuous striking time of the breaking hammer is too long.
When the breaking hammer strikes harder stones, the drill rod is continuously operated at the same striking point, so that the drill rod is excessively worn.
4. The pressure is insufficient during crushing.
The crushing hammer during operation pressure is not enough, and the breaking dynamics weakens, and broken time and frequency will increase, increase the wearing and tearing of tup and accelerate inside seal pad's ageing.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an electrical protection system of quartering hammer, this system can real-time supervision quartering hammer continuous operation time, the state of strikeing, the direction of pituitary, provide the hydraulic pressure of power. When the collected signal of the system is larger than the set value of the system, the system prompts an alarm, and after the system alarms for corresponding time of continuous action, the processor cuts off the power supply of the pilot valve to stop the breaking hammer to work, so that the breaking hammer is protected.
In order to solve the above technical problem, the utility model discloses a following technical means:
an electric protection system of a breaking hammer comprises a digital signal processor, a frequency sensor, a vibration sensor, a vertical sensor, a pressure sensor, a hammering pilot valve relay and an alarm, wherein the frequency sensor, the vibration sensor, the vertical sensor, the pressure sensor, the hammering pilot valve relay and the alarm are electrically connected with the digital signal processor;
the frequency sensor, the vibration sensor and the vertical sensor are respectively arranged on the outer wall of the cylinder body of the breaking hammer; the pressure sensor is arranged on a hydraulic loop of the hydraulic system;
the frequency sensor is electrically connected with the digital signal processor through a frequency signal processing circuit; the vibration sensor is electrically connected with the digital signal processor through a vibration signal processing circuit; the vertical sensor is electrically connected with the digital signal processor through the angle signal processing circuit; the pressure sensor is electrically connected with the digital signal processor through the pressure signal processing circuit;
the frequency sensor collects frequency signals of sounds emitted by an empty hammer and a real hammer which are hit by the breaking hammer in the working process, the frequency signals are transmitted to the digital signal processor through the frequency signal processing circuit, the vibration sensor collects vibration signals of the breaking hammer in the working process, the vibration signals are transmitted to the digital signal processor through the vibration signal processing circuit, the vertical sensor collects angle signals of a hammer head and the ground of the breaking hammer in the working process, and the angle signals are transmitted to the digital signal processor through the angle signal processing circuit; the hydraulic pressure sensor monitors a pressure signal of a hydraulic system in the working process of the breaking hammer in real time, and the pressure signal is transmitted to the digital signal processor through the pressure signal processing circuit;
the digital signal processor controls the alarm to work according to the received signal; the system power supply supplies power to the digital signal processor; the parameter setting module is electrically connected with the digital signal processor and inputs control parameters.
Compared with the prior art, the outstanding characteristics are that:
in the working process of the breaking hammer, sounds generated when the breaking hammer strikes the empty hammer are different from sounds generated when the breaking hammer strikes the real hammer, the frequency sensor acquires frequency signals, the frequency signal processing circuit judges whether the breaking hammer strikes the empty hammer or not, and the digital signal processor processes the frequency signals to give an alarm prompt;
the working duration time is counted by the vibration signals collected by the vibration sensor, the continuous working time is accumulated by the vibration signal processing circuit, the digital signal processor gives an alarm when the working duration time exceeds the set time, and if the working duration time does not exceed the set time, the digital signal processor clears the accumulated time by the familiar annunciator to prepare for counting the next continuous working time;
the vertical sensor collects angle signals of the hammer head of the breaking hammer and the ground, the angle signals are compared with a set maximum deviation angle through the angle signal processing circuit, and the digital signal processor which is larger than a set value gives an alarm.
The hydraulic pressure sensor monitors the pressure of the hydraulic system in real time, and prompts and alarms when the pressure is small, so that the fatigue operation of the breaking hammer caused by low efficiency of the hammer due to insufficient pressure is avoided.
After the alarm system continuously acts for a corresponding time, the digital signal processor controls the hammering pilot valve relay to work, the hammering hydraulic pilot valve power supply of the breaking hammer is cut off, and the operation is stopped, so that the breaking hammer is protected.
The frequency sensor, the vibration sensor and the vertical sensor are respectively arranged on the outer wall of the cylinder body of the breaking hammer; the pressure sensor is arranged on a hydraulic loop of the hydraulic system; the fixed frequency sensor, the vibration sensor and the vertical sensor are convenient to connect, and real and effective working signals are easy to acquire. The pressure sensor is convenient to acquire the pressure signal of the liquid provided by the hydraulic system in the working process.
The further preferred technical scheme is as follows:
the frequency signal processing circuit is provided with a signal amplifier and a frequency comparator, the frequency sensor transmits a frequency signal to the signal amplifier, the signal amplifier transmits the frequency signal to the frequency comparator, and the frequency comparator transmits the signal to the digital signal processor.
By arranging the signal amplifier and the frequency comparator, the frequency signal can be conveniently processed by the signal amplifier and the frequency comparator.
The vibration signal processing circuit is provided with a signal amplifier and a timer; the vibration sensor transmits the vibration signal to the signal amplifier, the signal amplifier transmits the vibration signal to the timer, and the timer transmits the vibration signal to the digital signal processor.
Through setting up signal amplifier, timer, be convenient for utilize the timer to count continuous operating time according to lasting vibrations signal.
The angle signal processing circuit is provided with a signal amplifier and a direction comparator; the vertical sensor transmits the angle signal to a signal amplifier, the signal amplifier transmits the angle signal to a direction comparator, and the direction comparator transmits the angle signal to a digital signal processor.
By arranging the signal amplifier and the direction comparator, the signal amplifier and the direction comparator can be conveniently utilized to process the angle signal.
The pressure signal processing circuit is provided with a signal amplifier and a pressure comparator, the force sensor transmits a pressure signal to the signal amplifier, the signal amplifier transmits the pressure signal to the pressure comparator, and the pressure comparator transmits the pressure signal to the digital signal processor.
By arranging the signal amplifier and the pressure comparator, the signal amplifier and the pressure comparator can be conveniently used for processing hydraulic pressure signals.
The utility model can avoid the excessive loss of the drill rod caused by continuous operation for more than one minute; the situation that the drill rod slides away from the surface to cause the drill rod to be damaged and influence the piston can be avoided; the loosening and damage of the front body and the main body screw caused by the casual impact can be avoided, and the machine body of the excavator is further damaged; the aging speed of the sealing gasket inside the breaking hammer caused by insufficient system pressure and low efficiency can be avoided. The protection to equipment can be accomplished through the operation of this system promptly, even if under driver's the manufacture of irregularity, extra fatigue damage can not produced to the quartering hammer.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
description of reference numerals: 1-a digital signal processor; 2-a frequency sensor; 21-a signal amplifier; 22-a frequency comparator;
3-a vibration sensor; 31-a signal amplifier; 32-a timer; 4-a vertical sensor; 41-a signal amplifier; 42-direction comparator; 5-a pressure sensor; 51-a signal amplifier; 52-a pressure comparator; 6-hammering pilot valve relay; 7-an alarm; 8-parameter setting module; 9-system power supply.
Detailed Description
The present invention will be further described with reference to the following embodiments and accompanying drawings.
Referring to fig. 1, an electrical protection system of a breaking hammer is composed of a digital signal processor 1, a frequency sensor 2, a vibration sensor 3, a vertical sensor 4, a pressure sensor 5, a hammering pilot valve relay 6 and an alarm 7, wherein the frequency sensor 2, the vibration sensor 3, the vertical sensor 4, the pressure sensor 5, the hammering pilot valve relay 6 and the alarm 7 are electrically connected with the digital signal processor 1; the frequency sensor 2 is electrically connected with the digital signal processor 1 through a frequency signal processing circuit; the vibration sensor 3 is electrically connected with the digital signal processor 1 through a vibration signal processing circuit; the vertical sensor 4 is electrically connected with the digital signal processor 1 through an angle signal processing circuit; the pressure sensor 5 is electrically connected with the digital signal processor 1 through a pressure signal processing circuit;
the frequency sensor 2 collects frequency signals of sounds emitted by an empty hammer and a real hammer which are hit by the breaking hammer in the working process, the frequency signals are transmitted to the digital signal processor 1 through the frequency signal processing circuit, the vibration sensor 3 collects vibration signals of the breaking hammer in the working process, the vibration signals are transmitted to the digital signal processor 1 through the vibration signal processing circuit, the vertical sensor 4 collects angle signals of a hammer head and the ground of the breaking hammer in the working process, and the angle signals are transmitted to the digital signal processor 1 through the angle signal processing circuit; the hydraulic pressure sensor 5 monitors a pressure signal of a hydraulic system of the breaking hammer in the working process in real time, and the pressure signal is transmitted to the digital signal processor 1 through the pressure signal processing circuit;
the digital signal processor 1 controls the alarm 7 to work according to the received signal; the system power supply 9 supplies power to the digital signal processor 1, and the parameter setting module 8 is electrically connected with the digital signal processor 1 to input control parameters;
the frequency sensor 2, the vibration sensor 3 and the vertical sensor 4 are respectively arranged on the outer wall of the cylinder body of the breaking hammer;
above-mentioned setting is convenient for connect fixed frequency sensor 2, vibrations sensor 3 and perpendicular sensor 4, and easily gathers true effectual working signal.
The pressure sensor 5 is arranged on the hydraulic circuit of the hydraulic system.
The arrangement facilitates the collection of the pressure signal of the liquid provided by the hydraulic system in the working process by the pressure sensor 5.
The frequency signal processing circuit is provided with a signal amplifier 21 and a frequency comparator 22, the frequency sensor 2 supplies a frequency signal to the signal amplifier 21, the signal amplifier 21 supplies a frequency signal to the frequency comparator 22, and the frequency comparator 22 supplies a signal to the digital signal processor 1.
By arranging the signal amplifier 21 and the frequency comparator 22, the frequency signal can be processed conveniently by the signal amplifier 21 and the frequency comparator 22.
The vibration signal processing circuit is provided with a signal amplifier 31 and a timer 32; the vibration sensor 3 supplies a vibration signal to the signal amplifier 31, the signal amplifier 31 supplies a vibration signal to the timer 32, and the timer 32 supplies a vibration signal to the digital signal processor 1.
By arranging the signal amplifier 31 and the timer 32, the timer 32 is used for counting the continuous working time according to the continuous vibration signal.
The angle signal processing circuit is provided with a signal amplifier 41 and a direction comparator 42; the vertical sensor 4 supplies the angle signal to the signal amplifier 41, the signal amplifier 41 supplies the angle signal to the direction comparator 42, and the direction comparator 42 supplies the angle signal to the digital signal processor 1.
By providing the signal amplifier 41 and the direction comparator 42, it is convenient to use the signal amplifier 41 and the direction comparator 42 to process the angle signal.
The pressure signal processing circuit is provided with a signal amplifier 51, a pressure comparator 52, the force sensor supplies a pressure signal to the signal amplifier 51, the signal amplifier 51 supplies a pressure signal to the pressure comparator 52, and the pressure comparator 52 supplies a pressure signal to the digital signal processor 1.
By providing the signal amplifier 51 and the pressure comparator 52, it is convenient to process the hydraulic pressure signal by using the signal amplifier 51 and the pressure comparator 52.
The advantages of this embodiment are:
in the working process of the breaking hammer, sounds generated when the breaking hammer strikes the empty hammer are different from sounds generated when the breaking hammer strikes the real hammer, the frequency sensor 2 acquires frequency signals, the frequency signals are processed by the frequency signal processing circuit to judge whether the breaking hammer strikes the empty hammer or not, and the digital signal processor 1 processes the breaking hammer and gives an alarm prompt;
the working duration time is counted by the vibration signal collected by the vibration sensor 3, the continuous working time is accumulated by the vibration signal processing circuit, the digital signal processor 1 gives an alarm when the working duration time exceeds the set time, and if the working duration time does not exceed the set time, the familiar annunciator clears the accumulated time to prepare for counting the next continuous working time;
the vertical sensor 4 collects angle signals of the hammer head of the breaking hammer and the ground, the angle signals are compared with a set maximum deviation angle through an angle signal processing circuit, and the digital signal processor 1 is larger than a set value to give an alarm.
The hydraulic pressure sensor 5 monitors the pressure of the hydraulic system in real time, and prompts and gives an alarm when the pressure is small, so that the fatigue operation of the breaking hammer caused by low efficiency of the hammer due to insufficient pressure is avoided.
After the alarm system continuously acts for a corresponding time, the digital signal processor 1 controls the hammering pilot valve relay 6 to work, the hammering hydraulic pilot valve power supply of the breaking hammer is cut off, and the operation is stopped, so that the breaking hammer is protected.
For example, the embodiment can avoid the excessive loss of the drill rod caused by continuous operation for more than one minute; the situation that the drill rod slides away from the surface to cause the drill rod to be damaged and influence the piston can be avoided; the loosening and damage of the front body and the main body screw caused by the casual impact can be avoided, and the machine body of the excavator is further damaged; the aging speed of the sealing gasket inside the breaking hammer caused by insufficient system pressure and low efficiency can be avoided. The protection to equipment can be accomplished through the operation of this system promptly, even if under driver's the manufacture of irregularity, extra fatigue damage can not produced to the quartering hammer.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (5)
1. An electric protection system of a breaking hammer comprises a digital signal processor, a frequency sensor, a vibration sensor, a vertical sensor, a pressure sensor, a hammering pilot valve relay and an alarm, wherein the frequency sensor, the vibration sensor, the vertical sensor, the pressure sensor, the hammering pilot valve relay and the alarm are electrically connected with the digital signal processor; the method is characterized in that:
the frequency sensor, the vibration sensor and the vertical sensor are respectively arranged on the outer wall of the cylinder body of the breaking hammer; the pressure sensor is arranged on a hydraulic loop of the hydraulic system;
the frequency sensor is electrically connected with the digital signal processor through a frequency signal processing circuit; the vibration sensor is electrically connected with the digital signal processor through a vibration signal processing circuit; the vertical sensor is electrically connected with the digital signal processor through the angle signal processing circuit; the pressure sensor is electrically connected with the digital signal processor through the pressure signal processing circuit;
the frequency sensor collects frequency signals of sounds emitted by an empty hammer and a real hammer which are hit by the breaking hammer in the working process, the frequency signals are transmitted to the digital signal processor through the frequency signal processing circuit, the vibration sensor collects vibration signals of the breaking hammer in the working process, the vibration signals are transmitted to the digital signal processor through the vibration signal processing circuit, the vertical sensor collects angle signals of a hammer head and the ground of the breaking hammer in the working process, and the angle signals are transmitted to the digital signal processor through the angle signal processing circuit; the hydraulic pressure sensor monitors a pressure signal of a hydraulic system in the working process of the breaking hammer in real time, and the pressure signal is transmitted to the digital signal processor through the pressure signal processing circuit;
the digital signal processor controls the alarm to work according to the received signal; the system power supply supplies power to the digital signal processor; the parameter setting module is electrically connected with the digital signal processor and inputs control parameters.
2. The electrical protection system of a demolition hammer as claimed in claim 1, wherein: the frequency signal processing circuit is provided with a signal amplifier and a frequency comparator, the frequency sensor transmits a frequency signal to the signal amplifier, the signal amplifier transmits the frequency signal to the frequency comparator, and the frequency comparator transmits the signal to the digital signal processor.
3. The electrical protection system of a demolition hammer as claimed in claim 1, wherein: the vibration signal processing circuit is provided with a signal amplifier and a timer; the vibration sensor transmits the vibration signal to the signal amplifier, the signal amplifier transmits the vibration signal to the timer, and the timer transmits the vibration signal to the digital signal processor.
4. The electrical protection system of a demolition hammer as claimed in claim 1, wherein: the angle signal processing circuit is provided with a signal amplifier and a direction comparator; the vertical sensor transmits the angle signal to a signal amplifier, the signal amplifier transmits the angle signal to a direction comparator, and the direction comparator transmits the angle signal to a digital signal processor.
5. The electrical protection system of a demolition hammer as claimed in claim 1, wherein: the pressure signal processing circuit is provided with a signal amplifier and a pressure comparator, the force sensor transmits a pressure signal to the signal amplifier, the signal amplifier transmits the pressure signal to the pressure comparator, and the pressure comparator transmits the pressure signal to the digital signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120560594.7U CN214811127U (en) | 2021-03-19 | 2021-03-19 | Electrical protection system of breaking hammer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120560594.7U CN214811127U (en) | 2021-03-19 | 2021-03-19 | Electrical protection system of breaking hammer |
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| CN214811127U true CN214811127U (en) | 2021-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023130586A1 (en) * | 2022-01-04 | 2023-07-13 | 上海三一重机股份有限公司 | Working machine, hydraulic control system, and control method for breaking hammer |
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2021
- 2021-03-19 CN CN202120560594.7U patent/CN214811127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023130586A1 (en) * | 2022-01-04 | 2023-07-13 | 上海三一重机股份有限公司 | Working machine, hydraulic control system, and control method for breaking hammer |
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