CN201306333Y - Intelligent hydraulic impactor - Google Patents
Intelligent hydraulic impactor Download PDFInfo
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- CN201306333Y CN201306333Y CNU2008201530575U CN200820153057U CN201306333Y CN 201306333 Y CN201306333 Y CN 201306333Y CN U2008201530575 U CNU2008201530575 U CN U2008201530575U CN 200820153057 U CN200820153057 U CN 200820153057U CN 201306333 Y CN201306333 Y CN 201306333Y
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Abstract
An intelligent hydraulic impactor comprises a piston, a cylinder body, a nitrogen room, a sensor, an analog-digital converter (A/D), a monolithic processor, an amplifier (AMP), a high-speed on-off valve, a hydraulic control two-position and three-way reversing valve and an oil tank. The piston is installed in the cylinder body to form a piston front cavity, a piston rear cavity and the nitrogen room, which are isolated; the sensor is installed in the nitrogen room in the cylinder body and connected with the A/D converter, the monolithic processor, the AMP, another AMP and a high-speed on-off valve coil by electric wires in sequence; when the hydraulic control two-position and three-way reversing valve works in left position, high pressure oil enters the piston front cavity, and the oil returns to the piston rear cavity; when the reversing valve works in right position, the high pressure oil enters the piston front cavity and the piston rear cavity; and a control cavity on the left of the hydraulic control two-position and three-way reversing valve adopts a normal pressure cavity and is directly communicated with a high pressure oil circuit, and control cavity on the right thereof is connected with the high-speed on-off valve. When the high-speed on-off valve works in the left position, the oil returns to the control cavity on the right of the hydraulic control two-position and three-way reversing valve; and when the high-speed on-off valve works in the right position, the high pressure oil enters the control cavity on the right thereof. Therefore, the pressure signal of the nitrogen room is detected by the sensor, signals really reflecting the bounces of a drill rod collided by the piston is obtained through computer analysis, calculation and judgment, and control signals are formed after processing for controlling the actions of the high-speed on-off valve, thereby adjusting the output characteristic of the impactor as per the actual working conditions.
Description
One, technical field
The utility model relates to a kind of Intelligent Hydraulic impactor.Adopt the hydraulic impactor of model utility design, can be by regulating the output characteristics of hydraulic impactor automatically.
Two, technical background
Hydraulic impactor is a kind of fragmentation that is widely used in the mine rock, mix the novel hydraulic engineering equipment in the engineering constructions such as demolition that earth makes up, and main structure comprises the basic elements of character such as hydraulic shock piston, selector valve and nitrogen chamber.Make a general survey of the developing history of hydraulic impactor, three have obtained very great progress during the last ten years.But from structural principle, basic not variation is leveraged to the present always.At present both at home and abroad the hydraulic impactor that uses is all the travel feedback formula, and when promptly backward stroke of the piston arrived feedback hole on the cylinder body, high pressure oil made the valve commutation, and piston transfers stroke to.The travel feedback working principle of hydraulic impactor has determined its technical feature, can not realize according to difference, the impact energy of step-less adjustment hydraulic impactor and the function of frequency of impact of being impacted the object performance.Therefore, designing a kind of new working principle is pressing for of hydraulic impactor technical development.
Three, model utility content
Can not be in order to overcome hydraulic impactor according to the difference of being impacted the object performance, the deficiency of the impact energy of real-time regulated hydraulic impactor, the utility model provides a kind of Intelligent Hydraulic impactor, this Intelligent Hydraulic impactor detects the pressure signal of nitrogen chamber 3 in real time by sensor 4, by Computer Analysis, computing and judgement, draw and truly to reflect piston percussion drill steel bounce-back signal, form the action that control signal is controlled high-speed switch valve through handling again, can realize the function of regulating impact energy and frequency of impact and frequency of impact according to the different automatic stepless that impacted the object performance.It is characterized in that: piston 1 is contained in and forms piston ante-chamber a1, piston back cavity a2 and nitrogen chamber 3 in the cylinder body 3, isolates mutually between these three chambeies.Sensor 4 is installed on the nitrogen chamber 3 of cylinder body 2, uses electric wire to be connected with the speed-sensitive switch valve coil with analog-digital converter (A/D) 5, single-chip microcomputer (CPU) 6, amplifier (AMP) 7, amplifier (AMP) successively.When high-speed switch valve 8 is worked in position, a left side, make the 9 the right control chamber a4 oil returns of hydraulic control two position three way directional control valve; When high-speed switch valve 8 is worked in right position, make hydraulic control two position three way directional control valve 9 the right control chamber a4 advance high pressure oil.Hydraulic control two position three way directional control valve 9 is connected with fuel tank 10 with oil pump (not drawing among Fig. 1), cylinder body 2, high-speed switch valve 8 respectively by oil circuit.Hydraulic control two position three way directional control valve 9 is when the work of position, a left side, and piston ante-chamber a1 advances high pressure oil, piston back cavity a2 oil return; Selector valve is when the work of right position, and piston ante-chamber a1 and back cavity a2 advance high pressure oil simultaneously.Hydraulic control two position three way directional control valve 9 left side control chamber a3 are the direct and high-pressure oil passage connection of common pressure chamber, and the right control chamber a4 is connected with high-speed switch valve 8.
The beneficial effects of the utility model are when running into harder quilt impact object, can automatically impact energy be transferred greatly, and frequency of impact is turned down; When running into softer quilt impact object, can automatically impact energy be turned down, frequency of impact is transferred big.Can under the situation that does not increase main frame (as hydraulic shovel or loader etc.) electric motor power, increase the utilization efficiency and the scope of main frame like this, and can reduce the energy consumption of main frame greatly.
Four, description of drawings
The schematic representation of working state when Fig. 1 is Intelligent Hydraulic impactor backhaul acceleration beginning.
The schematic representation of working state when Fig. 2 is Intelligent Hydraulic impactor stroke.
Among the figure: the 1-piston, the 2-cylinder body, the 3-nitrogen chamber, the 4-sensor, 5-analog-digital converter (A/D), 6-single-chip microcomputer (CPU), 7-amplifier (AMP), the 8-high-speed switch valve, 9-hydraulic control two position three way directional control valve, the 10-fuel tank is formed, a1-piston ante-chamber, a2-piston back cavity, a3-hydraulic control two position three way directional control valve 9 left side control chambers, a4-hydraulic control two position three way directional control valve 9 the right control chambers, A1-plug ante-chamber a1 effective active area, A2-piston back cavity a2 effective active area, A3-hydraulic control bi-bit bi-pass selector valve 9 left side control chamber a3 effective active areas, A4-hydraulic control two position three way directional control valve 9 the right control chamber a4 effective active areas.
Five, specific embodiments
The utility model comprises piston 1, cylinder body 2, nitrogen chamber 3, sensor 4, analog-digital converter (A/D) 5, single-chip microcomputer (CPU) 6, amplifier (AMP) 7, high-speed switch valve 8, hydraulic control two position three way directional control valve 9, fuel tank 10 compositions.Piston 1 is contained in and forms piston ante-chamber a1, piston back cavity a2 and nitrogen chamber 3 in the cylinder body 3, isolates mutually between these three chambeies.Sensor 4 is installed on the nitrogen chamber 3 of cylinder body 2, uses electric wire to be connected with the speed-sensitive switch valve coil with analog-digital converter (A/D) 5, single-chip microcomputer (CPU) 6, amplifier (AMP) 7, amplifier (AMP) successively.When high-speed switch valve 8 is worked in position, a left side, make the 9 the right control chamber a4 oil returns of hydraulic control two position three way directional control valve; When high-speed switch valve 8 is worked in right position, make hydraulic control two position three way directional control valve 9 the right control chamber a4 advance high pressure oil.Hydraulic control two position three way directional control valve 9 is connected with fuel tank 10 with oil pump (not drawing among Fig. 1), cylinder body 2, high-speed switch valve 8 respectively by oil circuit.Hydraulic control two position three way directional control valve 9 is when the work of position, a left side, and piston ante-chamber a1 advances high pressure oil, piston back cavity a2 oil return; Selector valve is when the work of right position, and piston ante-chamber a1 and back cavity a2 advance high pressure oil simultaneously.Hydraulic control two position three way directional control valve 9 left side control chamber a3 are the direct and high-pressure oil passage connection of common pressure chamber, and the right control chamber a4 is connected with high-speed switch valve 8.
Referring to its working principle of accompanying drawing be:
1, backhaul boost phase
After impacting drill rod, piston 1 prepares drawback movement, initial position is seen Fig. 1, pressure transducer 4 detects the force value of nitrogen chamber 3 when rebounding after piston 1 impacts, send this signal to Computer Processing, computer is calculated piston rebound speed and is noted top speed according to pneumatic process principle formula, adjust nitrogen chamber pressure set points when commutating one to one in view of the above, and control high-speed switch valve 8 actions, speed-sensitive switch 8 outages, hydraulic control two position three way directional control valve 9 is in the work of position, a left side, piston 1 is done backhaul accelerated motion under the effect of ante-chamber a1 high pressure oil, nitrogen chamber 3 pressure raise, and back cavity a2 is to the oil sump tank oil extraction.When the pressure that detects nitrogen chamber 3 when pressure transducer 4 reached the commutation force value of setting, computer sent 8 actions of high level command control speed-sensitive switch, and the oil circuit of back cavity 5 is cut off in 9 commutations of hydraulic control two position three way directional control valve, and backhaul is quickened to finish.
2, backhaul deceleration and stroke stage
The backhaul deceleration is consistent with the connecting and disconnecting of stroke stage system oil circuit, and working state is seen Fig. 2, and after speed-sensitive switch 8 actions, high-speed switch valve 8 is in the work of right position; Because the right control chamber a4 effective active area of hydraulic control two position three way directional control valve 9 makes hydraulic control two position three way directional control valve 9 the right control chamber a4 advance high pressure oil than left side control chamber a3 effective active area, 9 commutations of hydraulic control two position three way directional control valve; Hydraulic control two position three way directional control valve 9 makes piston ante-chamber a1 and back cavity a2 advance high pressure oil simultaneously in the work of right position.Because piston back cavity a2 effective active area A2 is bigger than ante-chamber a1 effective active area A1; Impactor is made backhaul retarded motion and stroke movement under the acting in conjunction of nitrogen chamber pressure and high-voltage oil liquid pressure etc., the high pressure oil during stroke among the piston ante-chamber a1 flows into piston back cavity a2 with oil circuit.When stroke finishes, piston impact drill rod 1 and bounce-back, the force value of computer recording bounce-back moment nitrogen chamber also is converted to piston rebound speed, and serves as according to the setting value of regulating commutation pressure with maximum bounce-back speed, uses in order to following one-period.Above hydraulic control system scheme has been cancelled the mechanical switching system of conventional hydraulic impactor, adopts by computer-controlled automatic reverse system, and the output characteristics that can regulate impactor like this according to actual conditions realizes the intellectuality work of hydraulic impactor.
Claims (3)
1. Intelligent Hydraulic impactor, the utility model comprises piston (1), cylinder body (2), nitrogen chamber (3), sensor (4), analog-digital converter (5), single-chip microcomputer (6), amplifier (7), high-speed switch valve (8), hydraulic control two position three way directional control valve (9), fuel tank (10) composition, it is characterized in that: piston (1) is contained in and forms piston ante-chamber (a1), piston back cavity (a2) and nitrogen chamber (3) in the cylinder body (3), isolates mutually between these three chambeies.
2. according to the Intelligent Hydraulic impactor of claim 1, it is characterized in that: sensor (4) is installed on the nitrogen chamber (3) of cylinder body (2), uses electric wire to be connected with analog-digital converter (5), single-chip microcomputer (6), amplifier (7) and high-speed switch valve (8) coil successively.
3. according to the Intelligent Hydraulic impactor of claim 1, it is characterized in that: hydraulic control two position three way directional control valve (9) is connected with oil pump, cylinder body (2), high-speed switch valve (8) and fuel tank (10) respectively by oil circuit; Hydraulic control two position three way directional control valve (9) left side control chamber (a3) is the direct and high-pressure oil passage connection of common pressure chamber, and the right control chamber (a4) is connected with high-speed switch valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201530575U CN201306333Y (en) | 2008-09-16 | 2008-09-16 | Intelligent hydraulic impactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201530575U CN201306333Y (en) | 2008-09-16 | 2008-09-16 | Intelligent hydraulic impactor |
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| Publication Number | Publication Date |
|---|---|
| CN201306333Y true CN201306333Y (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201530575U Expired - Fee Related CN201306333Y (en) | 2008-09-16 | 2008-09-16 | Intelligent hydraulic impactor |
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| Country | Link |
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| CN (1) | CN201306333Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146690A (en) * | 2011-01-28 | 2011-08-10 | 徐州工程学院 | Control method for excavation force of hydraulic control vibration excavator and special servo valve |
| CN102667179A (en) * | 2009-11-02 | 2012-09-12 | 斯堪尼亚商用车有限公司 | Arrangement and method for damping of a piston movement |
| CN108367419A (en) * | 2015-12-24 | 2018-08-03 | 古河凿岩机械有限公司 | Hydraulic impact device |
| CN108561071A (en) * | 2018-06-21 | 2018-09-21 | 姚小林 | Electric-controlled hydraulic quartering hammer |
| CN110005015A (en) * | 2019-05-07 | 2019-07-12 | 徐州徐工挖掘机械有限公司 | A kind of the quartering hammer control system and control method of double gear frequency modulation |
| CN112082723A (en) * | 2019-06-14 | 2020-12-15 | 浙江工业大学 | Impact testing machine |
-
2008
- 2008-09-16 CN CNU2008201530575U patent/CN201306333Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102667179A (en) * | 2009-11-02 | 2012-09-12 | 斯堪尼亚商用车有限公司 | Arrangement and method for damping of a piston movement |
| CN102146690A (en) * | 2011-01-28 | 2011-08-10 | 徐州工程学院 | Control method for excavation force of hydraulic control vibration excavator and special servo valve |
| CN102146690B (en) * | 2011-01-28 | 2012-09-05 | 徐州工程学院 | Control method for excavation force of hydraulic control vibration excavator and special servo valve |
| CN108367419A (en) * | 2015-12-24 | 2018-08-03 | 古河凿岩机械有限公司 | Hydraulic impact device |
| CN108561071A (en) * | 2018-06-21 | 2018-09-21 | 姚小林 | Electric-controlled hydraulic quartering hammer |
| CN110005015A (en) * | 2019-05-07 | 2019-07-12 | 徐州徐工挖掘机械有限公司 | A kind of the quartering hammer control system and control method of double gear frequency modulation |
| CN110005015B (en) * | 2019-05-07 | 2023-06-06 | 徐州徐工挖掘机械有限公司 | Breaking hammer control system and control method for double-gear frequency modulation |
| CN112082723A (en) * | 2019-06-14 | 2020-12-15 | 浙江工业大学 | Impact testing machine |
| CN112082723B (en) * | 2019-06-14 | 2024-06-11 | 浙江工业大学 | Impact testing machine |
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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: 20090909 Termination date: 20100916 |