CN202655996U - Pressure maintaining device for hydraulic system of numerical control plano-milling machine - Google Patents
Pressure maintaining device for hydraulic system of numerical control plano-milling machine Download PDFInfo
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- CN202655996U CN202655996U CN 201220251490 CN201220251490U CN202655996U CN 202655996 U CN202655996 U CN 202655996U CN 201220251490 CN201220251490 CN 201220251490 CN 201220251490 U CN201220251490 U CN 201220251490U CN 202655996 U CN202655996 U CN 202655996U
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- pressure
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- maintaining device
- milling machine
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Abstract
The utility model discloses a pressure maintaining device for a hydraulic system of a numerical control plano-milling machine. The pressure maintaining device is structurally characterized in that an energy accumulator and a double-contact pressure relay are arranged on an output pipeline of an oil pump, and a stop valve is arranged between the energy accumulator and an overhauling pipeline of an oil tank. Oil pressure can be controlled in a reasonable range through the pressure relay; and the energy accumulator plays a role in compensating the pressure of the system, so that the oil pump can intermittently work. On the premise that the system works under stable pressure, the service life of the oil pump is prolonged. The service life of the oil pump can reach 1 year. The oil pump works intermittently, so that the problem of over-high oil temperature is solved, the fault rate of a machine tool is reduced, and the production efficiency is improved. The stop valve is arranged between the energy accumulator and the overhauling pipeline of the oil tank, so that the pressure maintaining device is convenient to overhaul.
Description
Technical field
The utility model relates to a kind of pressurizer for the CNC planer type milling machine hydraulic system.Especially be applicable to the oil pump pressurizer of CNC planer type milling machine hydraulic pressure pine cutter system and accessory head pine cutter system.
Background technology
Existing CNC planer type milling machine, continuous running behind the pump start, a large amount of pressure oil of residue turns back to fuel tank from the overflow valve port after satisfying the pressure requirement, has produced amount of heat.Because the fuel tank temperature is high, oil viscosity reduces, in let out and continue to increase, cause system pressure unstable.And the wearing and tearing of aggravation oil pump damage frequently, and only be 1 month service life; Although hydraulic system has been equipped with cooling system, but still do not satisfy the job requirement of system, and then cause the hydraulic pressure pine cutter system of CNC planer type milling machine, German import axial plunger pump, the overflow valve of accessory head pine cutter system often to damage, service life is only less than 2 months, the lathe cisco unity malfunction, and import accessory cost is high, and procurement cycle is long, has seriously restricted the processing of Related product.Because oil temperature is too high, and oily chemical index is deteriorated, need often to change hydraulic oil on the other hand, waste energy.
Summary of the invention
In order to solve the technical problem of above-mentioned existence, the utility model provides a kind of pressurizer for the CNC planer type milling machine hydraulic system.This device can be controlled oil pressure, and then reduces oil temperature, prolongs oil pump service life, has improved production efficiency.
The purpose of this utility model realizes by following proposal: the pressurizer that is used for the CNC planer type milling machine hydraulic system, it is characterized in that: the output pipe at oil pump is installed accumulator and double-contact pressure switch, between the maintenance pipeline of accumulator and fuel tank stop valve is installed.
The beneficial effects of the utility model: the utility model adopts said structure, because the output pipe at oil pump has increased a double-contact pressure switch and accumulator, pressure switch can be controlled oil pressure in the reasonable scope, accumulator plays the compensating action to system pressure, makes oil pump reach the intermittently used purpose.System guaranteeing under the pressure smooth working prerequisite, prolonged oil pump service life.Can reach 1 year the service life of oil pump.The service intermittent of oil pump has solved the too high problem of oil temperature, has reduced the machine failure rate, has improved production efficiency.Between the maintenance pipeline of accumulator and fuel tank, stop valve is installed, easy access.
Description of drawings
Fig. 1 is the structure chart of existing hydraulic system.
Fig. 2 is the hydraulic system structure figure that installs pressurizer additional.
The specific embodiment
The present embodiment accompanying drawing 1 shows for the hydraulic pressure pine cutter system of CNC planer type milling machine and accessory head pine cutter system two cover hydraulic systems, and it comprises shared fuel tank 1, shares liquid level meter 2 and separately motor 3, oil pump 4, check valve 5, pipeline, Pressure gauge 6, stop valve 7, overflow valve 8.
Install respectively a cover pressurizer additional in the hydraulic pressure of CNC planer type milling machine pine cutter system and accessory head pine cutter system, as shown in Figure 2, pressurizer is made of accumulator 9 and double-contact pressure switch 10, stop valve 11.Wherein accumulator 9 and double-contact pressure switch 10 are installed in respectively on the output pipe of oil pump 4, and stop valve 11 is installed between the maintenance pipeline of accumulator 9 and fuel tank 1.
Claims (1)
1. be used for the pressurizer of CNC planer type milling machine hydraulic system, it is characterized in that: the output pipe at oil pump is installed accumulator and double-contact pressure switch, between the maintenance pipeline of accumulator and fuel tank stop valve is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251490 CN202655996U (en) | 2012-05-31 | 2012-05-31 | Pressure maintaining device for hydraulic system of numerical control plano-milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251490 CN202655996U (en) | 2012-05-31 | 2012-05-31 | Pressure maintaining device for hydraulic system of numerical control plano-milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202655996U true CN202655996U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220251490 Expired - Lifetime CN202655996U (en) | 2012-05-31 | 2012-05-31 | Pressure maintaining device for hydraulic system of numerical control plano-milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202655996U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586527A (en) * | 2013-11-26 | 2014-02-19 | 山东泰丰液压股份有限公司 | Valve type plate shearer hydraulic control system with safety protection device |
| CN104385044A (en) * | 2014-10-16 | 2015-03-04 | 清华大学 | Force balance system used for gantry machine tool |
| CN104847721A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Pressure-maintaining control device and engineering machine with same |
| CN105522435A (en) * | 2014-10-17 | 2016-04-27 | 三菱重工业株式会社 | Pressure maintaining apparatus, machine tool, and method of running pressure maintaining apparatus in machine tool |
-
2012
- 2012-05-31 CN CN 201220251490 patent/CN202655996U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586527A (en) * | 2013-11-26 | 2014-02-19 | 山东泰丰液压股份有限公司 | Valve type plate shearer hydraulic control system with safety protection device |
| CN103586527B (en) * | 2013-11-26 | 2015-10-14 | 山东泰丰液压股份有限公司 | With safety guard lock formula plate shearing machine hydraulic control system |
| CN104385044A (en) * | 2014-10-16 | 2015-03-04 | 清华大学 | Force balance system used for gantry machine tool |
| CN104385044B (en) * | 2014-10-16 | 2016-06-01 | 清华大学 | For the force balancing system of Longmen machine tool |
| CN105522435A (en) * | 2014-10-17 | 2016-04-27 | 三菱重工业株式会社 | Pressure maintaining apparatus, machine tool, and method of running pressure maintaining apparatus in machine tool |
| CN104847721A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Pressure-maintaining control device and engineering machine with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 115004 Liaoning Yingkou coastal industrial base management committee Xin Lian Jie East 1. Patentee after: CERI YINGKOU EQUIPMENT DEVELOPMENT AND MANUFACTURING CO., LTD. Address before: 115004 Liaoning Yingkou coastal industrial base, new Union Street 1 East. Patentee before: CERI Yingkou Equipment Development and Manufacturing Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |