CN201346644Y - Double-speed hydraulic drawing bench - Google Patents
Double-speed hydraulic drawing bench Download PDFInfo
- Publication number
- CN201346644Y CN201346644Y CNU2007201870854U CN200720187085U CN201346644Y CN 201346644 Y CN201346644 Y CN 201346644Y CN U2007201870854 U CNU2007201870854 U CN U2007201870854U CN 200720187085 U CN200720187085 U CN 200720187085U CN 201346644 Y CN201346644 Y CN 201346644Y
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- valve
- oil
- way
- electromagnetic valve
- way electromagnetic
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic system of a double-speed hydraulic drawing bench. The hydraulic system comprises an oil storage tank, an oil cylinder, an oil pump and a valve, wherein, the inlet of the oil pump is connected with the oil storage tank; and the outlet of the oil pump is connected with an overflow valve. The hydraulic system of the double-speed hydraulic drawing bench is characterized in that an oil passage comes out of the outlet of the oil pump passes through a retaining valve and is connected with the inlet of a three-position four-way electromagnetic valve; two controlling ports of the three-position four-way electromagnetic valve divide a main oil passage into an upper branch oil passage and a lower branch oil passage for output; another outlet of the three-position four-way electromagnetic valve is connected with the oil storage tank; and a two-position two-way electromagnetic valve is also connected between the oil cylinder and a one-way throttle valve of an upper loop and a lower loop in parallel. The hydraulic system of the double-speed hydraulic drawing bench has the advantages of simple structure, low cost, reliable system and good stability.
Description
Technical field
The utility model relates to a kind of broaching machine, specifically is a kind of dual-speed hydraulic broaching machine.
Background technology
The hydraulic system of existing hydraulic broaching machine adopts motor-driven one a table oil pump work usually, drive the purpose that oil cylinder reaches broaching by oil pump again, existing this broaching machine general frequency converter that adopts when speed governing is realized, one-way throttle valve is the purpose that reaches speed governing by the flow of control internal oil passages, when the oil circuit flow is turned down, make motor increase unnecessary load; And the mode that adopts the frequency converter frequency conversion changes the output quantity that rotating speed of motor reaches the change oil pump, from reaching the purpose of speed governing, this mode not only increases the cost of broaching machine, and when low speed unstable properties, motor and oil pump are fragile during high speed, can increase noise; Simultaneously present hydraulic system structure more complicated, system reliability is not good, and fault rate is higher.
The utility model content
The purpose of this utility model is to provide a kind of dual-speed hydraulic broaching machine, realizes the purpose that double speed drives by cooperatively interacting of oil circuit magnetic valve, has simple in structurely, and cost is low, and system is reliable, the characteristics of good stability.
For achieving the above object by the following technical solutions:
A kind of dual-speed hydraulic broaching machine comprises hydraulic system, hydraulic system comprises fuel reserve tank, oil cylinder, oil pump and valve, oil pump import and fuel reserve tank link, exit at oil pump is connected with overflow valve, it is characterized in that: the oil circuit that exports out from oil pump links through check valve and three position four-way electromagnetic valve import, two control ports of this three position four-way electromagnetic valve are divided into working connection, following two branch oil circuits output, three position four-way electromagnetic valve also has an outlet and fuel reserve tank to link, on described two, last loop and the following loop of dividing oil circuit to connect oil cylinder respectively down, last, be equipped with one-way throttle valve between following two branch oil circuit oil cylinders and the three position four-way electromagnetic valve, between the one-way throttle valve of described following minute oil circuit and oil cylinder, be provided with hydraulic control one-way valve and one way sequence valve, this hydraulic control one-way valve links with the two-position two-way solenoid valve that is connected in parallel on the branch oil circuit, at oil cylinder and also be parallel with two-position two-way solenoid valve between the one-way throttle valve in loop up and down.
Oil-feed and the fuel-displaced rising that realize oil cylinder and the decline of the utility model by upper and lower minute oil circuit of three position four-way electromagnetic valve control; Be connected in parallel on the break-make of the two-position two-way solenoid valve control hydraulic control one-way valve of branch oil circuit, this two-position two-way solenoid valve and hydraulic control one-way valve and one way sequence valve can prevent that together piston from stopping to rise or may occur because piston deadweight and gliding voluntarily from the transfer process that rises to decline, play the hydro-cushion supporting, and be connected in parallel on the speed that two-position two-way solenoid valve between the one-way throttle valve in oil cylinder and upper and lower loop can be controlled the oil cylinder motion, realize the double speed motion of broaching machine.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
A kind of as shown in Figure 1 dual-speed hydraulic broaching machine comprises hydraulic system, hydraulic system comprises fuel reserve tank 1, oil cylinder 2, oil pump 3 and valve, oil pump 3 imports and fuel reserve tank 1 link, be connected with overflow valve 5 in the exit of oil pump 3, oil pump 3 exits also are parallel with pressure meter switch 6 and Pressure gauge 7, import with three position four-way electromagnetic valve 8 links the working connection that comes out from oil pump 3 through check valve 4, from 8 two control ports of this three position four-way electromagnetic valve working connection is divided into, following two branch oil circuits output, three position four-way electromagnetic valve 8 also has an outlet and fuel reserve tank 1 to link, on described two, last loop and the following loop of dividing oil circuit to connect oil cylinder 2 respectively down, last, be equipped with one-way throttle valve 9 between following two branch oil circuit oil cylinders 2 and the three position four-way electromagnetic valve 8,10, between the one-way throttle valve 10 of described following minute oil circuit and oil cylinder 2, be provided with hydraulic control one-way valve 11 and one way sequence valve 14, this hydraulic control one-way valve 11 links with the two-position two-way solenoid valve 12 that is connected in parallel on the branch oil circuit, oil cylinder 2 with on, one-way throttle valve 9 on the following loop, also be parallel with two-position two-way solenoid valve 13 between 10.
The course of work of the present utility model is as follows: the oil in the fuel reserve tank 1 is sent to working connection through oil pump 3 pressurizations, working connection is provided with the overflow valve 5 of pressure protect, pressure switch 6, Pressure gauge 7 and the check valve 4 that prevents to flow backwards, after the oil of working connection is sent to three position four-way electromagnetic valve 8, magnetic valve rises according to oil cylinder or being interconnected of electromagnetism interfaces disposed in decline, when descending as oil cylinder piston, three position four-way electromagnetic valve 8 is communicated with the control mouth in import and last loop, descend the control in loop to be communicated with again with outlet, oil flows out from last circuit controls mouth, flow to the last loop of oil cylinder 2 through one-way throttle valve 9, the oil in loop then enters magnetic valve through one-way throttle valve 10 from following circuit controls mouth and flows to fuel reserve tank 1 through outlet under the oil cylinder, thereby makes oil cylinder piston be descended; With should having risen by oil cylinder piston, oil under divide oil circuit to flow to oil cylinder 2, flow back to fuel reserve tank 1 from last minute oil circuit, and hydraulic control one-way valve 11 and one way sequence valve 14 can prevent that piston from stopping to rise or may occur because piston deadweight and gliding voluntarily plays hydro-cushion to support from the transfer process that rises to decline; Two-position two-way solenoid valve 13 about the oil cylinder in parallel on the loop can be realized the change of the flowing velocity of hydraulic oil in the oil cylinder by break-make, thereby the double speed that can realize broaching machine is moving; The utility model is simple in structure, and cost is low, and system is reliable, good stability.
Claims (1)
1, a kind of dual-speed hydraulic broaching machine, comprise hydraulic system, hydraulic system comprises fuel reserve tank, oil cylinder, oil pump and valve, oil pump import and fuel reserve tank link, exit at oil pump is connected with overflow valve, it is characterized in that: the oil circuit that exports out from oil pump links through check valve and three position four-way electromagnetic valve import, two control ports of this three position four-way electromagnetic valve are divided into working connection, following two branch oil circuits output, three position four-way electromagnetic valve also has an outlet and fuel reserve tank to link, on described two, last loop and the following loop of dividing oil circuit to connect oil cylinder respectively down, last, be equipped with one-way throttle valve between following two branch oil circuit oil cylinders and the three position four-way electromagnetic valve, between the one-way throttle valve of described following minute oil circuit and oil cylinder, be provided with hydraulic control one-way valve and one way sequence valve, this hydraulic control one-way valve links with the two-position two-way solenoid valve that is connected in parallel on the branch oil circuit, at oil cylinder and also be parallel with two-position two-way solenoid valve between the one-way throttle valve in loop up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201870854U CN201346644Y (en) | 2007-12-26 | 2007-12-26 | Double-speed hydraulic drawing bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201870854U CN201346644Y (en) | 2007-12-26 | 2007-12-26 | Double-speed hydraulic drawing bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201346644Y true CN201346644Y (en) | 2009-11-18 |
Family
ID=41366123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201870854U Expired - Fee Related CN201346644Y (en) | 2007-12-26 | 2007-12-26 | Double-speed hydraulic drawing bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201346644Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691698A (en) * | 2012-06-20 | 2012-09-26 | 苏州世力源科技有限公司 | Method for preventing hydraulic impact table oil source from raising temperature |
| CN104314899A (en) * | 2013-09-11 | 2015-01-28 | 昆山新金福精密电子有限公司 | Reversing oil path system |
| CN105134694A (en) * | 2015-08-24 | 2015-12-09 | 洛阳三隆安装检修有限公司 | Big loading arm lifting oil cylinder hydraulic system |
| CN109202170A (en) * | 2018-11-15 | 2019-01-15 | 长沙思胜智能设备有限公司 | The main hydraulic system and broaching machine of broaching machine |
-
2007
- 2007-12-26 CN CNU2007201870854U patent/CN201346644Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691698A (en) * | 2012-06-20 | 2012-09-26 | 苏州世力源科技有限公司 | Method for preventing hydraulic impact table oil source from raising temperature |
| CN102691698B (en) * | 2012-06-20 | 2015-07-15 | 苏州世力源科技有限公司 | Method for preventing hydraulic impact table oil source from raising temperature |
| CN104314899A (en) * | 2013-09-11 | 2015-01-28 | 昆山新金福精密电子有限公司 | Reversing oil path system |
| CN105134694A (en) * | 2015-08-24 | 2015-12-09 | 洛阳三隆安装检修有限公司 | Big loading arm lifting oil cylinder hydraulic system |
| CN109202170A (en) * | 2018-11-15 | 2019-01-15 | 长沙思胜智能设备有限公司 | The main hydraulic system and broaching machine of broaching 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: 20091118 Termination date: 20101226 |