CN2598683Y - Electrohydraulic hammer with leakproof device - Google Patents
Electrohydraulic hammer with leakproof device Download PDFInfo
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- CN2598683Y CN2598683Y CNU03203864XU CN03203864U CN2598683Y CN 2598683 Y CN2598683 Y CN 2598683Y CN U03203864X U CNU03203864X U CN U03203864XU CN 03203864 U CN03203864 U CN 03203864U CN 2598683 Y CN2598683 Y CN 2598683Y
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Abstract
An electrohydraulic hammer with leakproof device comprises an oil cylinder, a hammer lever, an accumulator, an oil pump and a motor M; the exit of the oil pump is connected to the accumulator and the oil cylinder through a main oil pipe; the utility model also comprises a hammer lever breaking leakproof unit A and a main oil pipe detonation leakproof unit B; the beneficial effects of the utility model are that hammer lever breaking leakproof unit A can make the oil in the oil cylinder be discharged into the oil tank when the hammer lever is broken; while the oil in the oil supplying pipe flows to the oil tank through a hydraulic back valve to avoid big leakage of medium oil. When the main oil pipe blows out, the main oil pipe leakproof device of the utility model makes the oil byway at the top and lower part of the main oil pipe be discharged into the oil tank to avoid oil leakage. Consequently, fire or blasting accident caused by the oil leakage is avoided.
Description
Technical field
The utility model relates to a kind of forging equipment, specifically is a kind of electric liquid hammer that has device for preventing leakage.
Background technology
The tup of existing electric liquid hammer (being the liquid pneumatic hammer) is connected with in-oil cylinder piston by hammer stem, and is connected driven plunger with accumulator with oil cylinder by oil pump and moves up and down.In order to prevent to fracture and make in-oil cylinder oily dielectric leakage and lead to fire or blast at hammer stem, the other leakproof ball of laying of the hammer stem in the fluid cylinder lower end is so that it is blocked by the hammer stem mouth place that this ball is rolled into the oil cylinder lower end after hammer stem disconnects.The shortcoming of this anti-leak ball is to be subjected to the resistance of oil big, can not in time the hammer stem mouth be blocked, still have big gauging medium to leak, below meeting, the oil that leaks to fire behind the processed forging of red heat, cause personnel's the injures and deaths and the loss of material, produce same consequence for explosion also may take place the main oil pipe of oil cylinder fuel feeding in addition.
Summary of the invention
The purpose of this utility model just provides and a kind ofly can fracture and prevent the electric liquid hammer that has device for preventing leakage that hydraulic oil leaks in a large number during the main oil pipe explosion at hammer stem.
The technical solution of the utility model is: comprise oil cylinder, hammer stem, accumulator, oil pump and motor M, the outlet of oil pump is connected with oil cylinder with accumulator by main oil pipe, also comprises hammer stem fracture anti-leak unit A and main oil pipe explosion anti-leak unit B;
The described hammer stem anti-leak unit A that fractures comprises hammer stem monitoring sensing controler C, two-position three way solenoid directional control valve I, hydraulic control one-way valve, quick release valve, the inlet of hydraulic control one-way valve is connected with the oil circuit of oil cylinder, its outlet is connected with fuel tank, two ends at hydraulic control one-way valve are connected with control loop, the two ends of two-position three way solenoid directional control valve I are connected in the above-mentioned control loop, and the other end is connected with fuel tank; The sensor of sensing controler C places by the hammer stem of lower end of oil tank, and the control end of sensing controler C is connected with Oil pump electrical machinery M with the control end of described two-position three way magnetic valve I respectively; Two ports of quick release valve are connected with the inlet and the oil cylinder of hydraulic control one-way valve respectively, and the another port connects fuel tank.
Described main oil pipe explosion anti-leak unit B comprises the hydraulic sensing controller, two-position three way magnetic valve II, upper hydraulic control one-way valve, upper quick release valve, the next hydraulic control one-way valve, the hydraulic unloading valve, the next two-position three way magnetic valve IV, V, the inlet of upper hydraulic control one-way valve is connected with accumulator, its outlet is connected with the upper end of main oil pipe, its inlet with export between control loop on the two-position three way magnetic valve II that connects, the inlet of described upper hydraulic control one-way valve also is connected with the inlet of upper quick release valve, one of this upper quick release valve outlet connects fuel tank, and the fracture inlet of hydraulic control one-way valve of anti-leak unit A and another port of quick release valve of another outlet and described hammer stem is connected; The sensitivity end of described hydraulic sensing controller is connected with the top of main oil pipe, and its control end is connected with the control end of described two-position three way magnetic valve II, control end and the Oil pump electrical machinery M of the next electromagnetic valve I V, V respectively; The inlet of described the next hydraulic control one-way valve is connected with the lower end of main oil pipe, and its outlet is connected with fuel tank; The lower end of main oil pipe also with after the hydraulic control end of unloader is connected respectively is connected with fuel tank respectively, and the hydraulic control end of unloader connect respectively the next two-position three way magnetic valve IV, V are connected with fuel tank on its series connection oil circuit.
Described hammer stem monitoring sensing controler C is made up of sensor and controller, and its sensor can be light, magnetic, sound or position sensor.
Described hydraulic control one-way valve is the plug-in hydraulic control one-way valve.
The beneficial effects of the utility model are: when hammer stem fractureed, hammer stem folding section anti-leak unit can make in-oil cylinder oil be put in the fuel tank fast by quick release valve, and the oil in its oil feed line flows to fuel tank by hydraulic control one-way valve, has prevented a large amount of leakages of medium oil.And when the main oil pipe explosion, main oil pipe device for preventing leakage of the present utility model is put in the fuel tank the oily bypass of main oil pipe upper and lower side, has prevented leaking of oil.Thereby avoided the fire or the explosion accident that cause owing to leaking of hydraulic oil.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Referring to Fig. 1, the utility model comprises oil cylinder 25, hammer stem 21, accumulator 26, oil pump 7,8 and motor M, and the outlet of oil pump is connected with oil cylinder 25 with accumulator 26 by main oil pipe 22, also comprises hammer stem fracture anti-leak unit A and the quick-fried anti-leak unit B of attacking of main oil pipe.
The described hammer stem anti-leak unit A that fractures comprises hammer stem monitoring sensing controler C, two-position three way solenoid directional control valve I, hydraulic control one-way valve 2, quick release valve 13, the inlet of hydraulic control one-way valve 2 is connected with the oil circuit of oil cylinder 25, its outlet is connected with fuel tank 23, two ends at hydraulic control one-way valve 2 are connected with control loop, the two ends of two-position three way solenoid directional control valve I are connected in the above-mentioned control loop, and the other end is connected with fuel tank 20; The sensor of sensing controler C places hammer stem 21 sides of the lower end of oil tank 25, and the control end of sensing controler C is connected with Oil pump electrical machinery M with the control end of described two-position three way magnetic valve I respectively; Two ports of quick release valve 13 are connected with the inlet and the oil cylinder 25 of hydraulic control one-way valve 2 respectively, and the another port connects fuel tank 21.
Described main oil pipe explosion anti-leak unit B comprises hydraulic sensing controller 1, two-position three way magnetic valve II, upper hydraulic control one-way valve 3, upper quick release valve 12, the next hydraulic control one-way valve 4, hydraulic unloading valve 5,6, the next two-position three way magnetic valve IV, V, the inlet of upper hydraulic control one-way valve 3 is connected with accumulator 26, its outlet is connected with the upper end of main oil pipe 22, its inlet with export between control loop on the two-position three way magnetic valve II that connects, the inlet of described upper hydraulic control one-way valve 3 also is connected with the inlet of upper quick release valve 12, one of this upper quick release valve 12 outlet connects fuel tank 24, and the fracture inlet of hydraulic control one-way valve 2 of anti-leak unit A and another port of quick release valve 13 of another outlet and described hammer stem is connected; The sensitivity end of described hydraulic sensing controller 1 is connected with the top of main oil pipe 22, and its control end is connected with the control end of described two-position three way magnetic valve II, control end and the Oil pump electrical machinery M of the next electromagnetic valve I V, V respectively; The inlet of described the next hydraulic control one-way valve 4 is connected with the lower end of main oil pipe 22, and its outlet is connected with fuel tank 25; The lower end of main oil pipe 22 also with after unloader 5,6 series connection is connected with fuel tank 27,28 respectively, and the hydraulic control end of unloader 5,6 is in series with the next two-position three way magnetic valve IV, V, is connected with fuel tank 29,30 on its series connection oil circuit.
Described hammer stem monitoring sensing controler C is made up of sensor and controller, and its sensor can be light, electromagnetism, sound or position sensor.
Described hydraulic control one-way valve 2,3,4 is the plug-in hydraulic control one-way valve.
Operation principle of the present utility model is as follows:
1, prevent the safeguard measure that hammer stem fractures:
When hammer stem 21 fractures by the hammer stem monitoring sensing controler C control that fractures.Charged and the commutation of two-position three way magnetic valve I, check valve 2 is opened, and pipeline mesohigh oil flows back to fuel tank 23, and at this moment quick release valve 13 is opened oil cylinder 25 mesohigh oil are let out oil sump tank 21, monitoring sensing controler C also controls the motor M stall, prevents from that hydraulic oil from discharging to be ejected into to cause fire on the forging.
2, prevent the measure of pressure duct blow out protection: when main oil pipe 22 explosions; because oil pressure reduces in the pipe; plug-in hydraulic control one-way valve 4 is opened automatically; pipeline mesohigh oil flows back to fuel tank 25 through valve 4; hydraulic sensing controller 1 (low voltage control) action simultaneously; make two position three-way valve II get electric control high pressure hydraulic fluid port, hydraulic control one-way valve 3 is closed, the hydraulic oil of accumulator 26 can not be ejected by explosion place of main oil pipe 21.Meanwhile, the oil spill that hydraulic sensing controller 1 control two-position three way magnetic valve IV, V energising control unloader 5,6 pump oil pump 7,8 flows back to fuel tank 27,28, and the stall of control motor M.The main oil pipe of explosion can not prevent great personal injury generations such as fire by inject high pressure oil.
Oil pump in the utility model, motor and unloader and the next two-position three way magnetic valve also can all be provided with a cover.
Claims (3)
1, a kind of electric liquid hammer that has device for preventing leakage, comprise oil cylinder (25), hammer stem (21), accumulator (26), oil pump (7,8) and motor M, the outlet of oil pump is connected with oil cylinder (25) with accumulator (26) by main oil pipe (22), it is characterized in that: also comprise hammer stem fracture anti-leak unit A and main oil pipe explosion anti-leak unit B;
The described hammer stem anti-leak unit A that fractures comprises hammer stem monitoring sensing controler C, two-position three way solenoid directional control valve I, hydraulic control one-way valve (2), quick release valve (13), the inlet of hydraulic control one-way valve (2) is connected with the oil circuit of oil cylinder (25), its outlet is connected with fuel tank (23), two ends at hydraulic control one-way valve (2) are connected with control loop, the two ends of two-position three way solenoid directional control valve I are connected in the above-mentioned control loop, and the other end is connected with fuel tank (20); The sensor of sensing controler C places hammer stem (21) side of the lower end of oil tank (25), and the control end of sensing controler C is connected with Oil pump electrical machinery M with the control end of described two-position three way magnetic valve I respectively; Two ports of quick release valve (13) are connected with the inlet and the oil cylinder (25) of hydraulic control one-way valve (2) respectively, and the another port connects fuel tank (21).
Described main oil pipe explosion anti-leak unit B comprises hydraulic sensing controller (1), two-position three way magnetic valve II, upper hydraulic control one-way valve (3), upper quick release valve (12), the next hydraulic control one-way valve (4), hydraulic unloading valve (5,6), the next two-position three way magnetic valve IV, V, the inlet of upper hydraulic control one-way valve (3) is connected with accumulator (26), its outlet is connected with the upper end of main oil pipe (22), its inlet with export between control loop on the two-position three way magnetic valve II that connects, the inlet of described upper hydraulic control one-way valve (3) also is connected with the inlet of upper quick release valve (12), one of this upper quick release valve (12) outlet connects fuel tank (24), and the fracture inlet of hydraulic control one-way valve (2) of anti-leak unit A and another port of quick release valve (13) of another outlet and described hammer stem is connected; The sensitivity end of described hydraulic sensing controller (1) is connected with the top of main oil pipe (22), and its control end is connected with the control end of described two-position three way magnetic valve II, control end and the Oil pump electrical machinery M of the next electromagnetic valve I V, V respectively; The inlet of described the next hydraulic control one-way valve (4) is connected with the lower end of main oil pipe (22), and its outlet is connected with fuel tank (25); The lower end of main oil pipe (22) also with after the hydraulic control end of unloader (5,6) is connected respectively is connected with fuel tank (27), (28) respectively, the hydraulic control end of unloader (5,6) connect respectively the next two-position three way magnetic valve IV, V are connected with fuel tank (29), (30) on its series connection oil circuit.
2, the electric liquid hammer that has anti-device for preventing leakage according to claim 1 is characterized in that: described hammer stem monitoring sensing controler C is made up of sensor and controller, and its sensor can be light, magnetic, sound or position sensor.
3, the electric liquid hammer that has anti-device for preventing leakage according to claim 1 and 2, it is characterized in that: described hydraulic control one-way valve (2), (3), (4) are the plug-in hydraulic control one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU03203864XU CN2598683Y (en) | 2003-02-14 | 2003-02-14 | Electrohydraulic hammer with leakproof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU03203864XU CN2598683Y (en) | 2003-02-14 | 2003-02-14 | Electrohydraulic hammer with leakproof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2598683Y true CN2598683Y (en) | 2004-01-14 |
Family
ID=34158282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU03203864XU Expired - Fee Related CN2598683Y (en) | 2003-02-14 | 2003-02-14 | Electrohydraulic hammer with leakproof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2598683Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825347A (en) * | 2015-11-18 | 2017-06-13 | 许勒压力机有限责任公司 | Forging hammer |
-
2003
- 2003-02-14 CN CNU03203864XU patent/CN2598683Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825347A (en) * | 2015-11-18 | 2017-06-13 | 许勒压力机有限责任公司 | Forging hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |