CN204755456U - Hydraulic motor pressure relief device - Google Patents
Hydraulic motor pressure relief device Download PDFInfo
- Publication number
- CN204755456U CN204755456U CN201520553812.9U CN201520553812U CN204755456U CN 204755456 U CN204755456 U CN 204755456U CN 201520553812 U CN201520553812 U CN 201520553812U CN 204755456 U CN204755456 U CN 204755456U
- Authority
- CN
- China
- Prior art keywords
- oil
- hydraulic motor
- oil hydraulic
- pipe way
- pressure relief
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002828 fuel tank Substances 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 abstract description 60
- 239000010720 hydraulic oil Substances 0.000 abstract description 10
- 238000004513 sizing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a hydraulic motor pressure relief device, including hydraulic pump, hydraulic motor, oil tank, advance oil pipe way, first time oil pipe way and second and go back to the oil pipe way, hydraulic motor is equipped with through -hole, oil inlet and oil return opening, the hydraulic pump is located into oil pipe on the road, it connects respectively to enter the oil pipe way the oil inlet with the oil tank, first time the oil pipe way is connected respectively the oil return opening with the oil tank, the second goes back to the oil pipe way and connects respectively the through -hole with the oil tank. The utility model has the advantages of as follows: let hydraulic motor casing hydraulic oil release the oil sump tank, prevent that the interior oil pressure of casing from causing the bearing seal to be suppressed brokenly and causing the oil leak, increase hydraulic motor life, effectively improve production efficiency, reduce the unit exception.
Description
Technical field
The sizing applicator gauge stick that the utility model relates to paper machine drives field, particularly relates to a kind of oil hydraulic motor pressure relief device.
Background technique
The sizing applicator gauge stick of current paper machine drives oil hydraulic motor to only have an oil inlet pipe,, a return tube, thus cause oil hydraulic motor internal hydraulic pressure oil after oil distribution casing drive shaft turns, have and leak in hydraulic motor casing on a small quantity, this section hydraulic oil has certain pressure, cause shaft seal often to be suppressed brokenly, cause leakage of oil, oil hydraulic motor damages.
Model utility content
In view of this, the utility model provides a kind of oil hydraulic motor pressure relief device, solves oil pressure in housing and suppresses bad shaft seal and cause Leakage.
The technological means that the utility model adopts is as follows: a kind of oil hydraulic motor pressure relief device, comprise oil hydraulic pump, oil hydraulic motor, fuel tank, in-line, the first return line and the second return line, described oil hydraulic motor is provided with through hole, filler opening and return opening, described oil hydraulic pump is positioned on in-line, described in-line connects described filler opening and described fuel tank respectively, described first return line connects described return opening and described fuel tank respectively, and described second return line connects described through hole and described fuel tank respectively.
Preferably, described second return line is provided with one-way valve.
Preferably, described first return line and the second return line are respectively equipped with oil filter near described fuel tank place.
Adopt oil hydraulic motor pressure relief device provided by the utility model by hydraulic motor casing hydraulic oil release oil sump tank, prevent oil pressure in housing from causing shaft seal to be suppressed broken and cause leakage of oil, increase oil hydraulic motor working life, effectively enhance productivity, minimizing unit exception.
Accompanying drawing explanation
The structural representation of the oil hydraulic motor pressure relief device that Fig. 1 provides for the utility model;
The hydraulic motor structure schematic diagram of the oil hydraulic motor pressure relief device that Fig. 2 provides for the utility model.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
Oil hydraulic motor pressure relief device as shown in Figure 1 and Figure 2, comprise oil hydraulic pump 1, oil hydraulic motor 2, fuel tank 3, in-line 4, first return line 5 and the second return line 6, oil hydraulic motor 2 is provided with through hole 7, filler opening 8 and return opening 9, oil hydraulic pump 1 is positioned on in-line 4, in-line 4 connects filler opening 8 and fuel tank 3 respectively, first return tube 5 tunnel connects return opening 9 and fuel tank 3, second return line 6 connecting through hole 7 and fuel tank 3 respectively respectively.
In this particular embodiment, the second return line 6 is provided with one-way valve 10; First return line 5 and the second return line 6 are respectively equipped with oil filter 11 near fuel tank 3 place.
Composition graphs 1, Fig. 2 working principle to the oil hydraulic motor pressure relief device of the present embodiment is described in detail; concrete steps are as follows: oil hydraulic motor 2 operation; under the urging of oil hydraulic pump 1, hydraulic oil circulates in in-line 4 and the first return line 5; have hydraulic oil under high-pressure situations to leak from oil hydraulic motor 2; these hydraulic oil flow in the second return line 6 by through hole 7; the impact that the pressure of the hydraulic oil avoided causes to shaft seal, serves the effect of protection oil hydraulic motor 2.And second return line 6 be provided with one-way valve 10, hydraulic oil is flowed towards a direction, promotes the circulation of hydraulic oil, moreover the first return line 5 and the second return line 6 are respectively equipped with oil filter 12 near fuel tank 3 place, serve the effect of filtered fluid force feed, allow hydraulic system more stably run.
In sum, adopt oil hydraulic motor pressure relief device provided by the utility model, allow the hydraulic oil leaked of oil hydraulic motor 2 li discharge oil sump tank 3, prevent oil pressure from causing shaft seal to be suppressed brokenly and cause leakage of oil, increase oil hydraulic motor 2 working life, effectively enhance productivity, reduce unit exception.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacements, improvement etc., all should be included within scope that the utility model protects.
Claims (3)
1. an oil hydraulic motor pressure relief device, it is characterized in that, comprise oil hydraulic pump, oil hydraulic motor, fuel tank, in-line, the first return line and the second return line, described oil hydraulic motor is provided with through hole, filler opening and return opening, described oil hydraulic pump is positioned on in-line, described in-line connects described filler opening and described fuel tank respectively, and described first return line connects described return opening and described fuel tank respectively, and described second return line connects described through hole and described fuel tank respectively.
2. oil hydraulic motor pressure relief device as claimed in claim 1, it is characterized in that, described second return line is provided with one-way valve.
3. oil hydraulic motor pressure relief device as claimed in claim 1 or 2, is characterized in that, described first return line and the second return line are respectively equipped with oil filter near described fuel tank place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553812.9U CN204755456U (en) | 2015-07-28 | 2015-07-28 | Hydraulic motor pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553812.9U CN204755456U (en) | 2015-07-28 | 2015-07-28 | Hydraulic motor pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755456U true CN204755456U (en) | 2015-11-11 |
Family
ID=54470167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520553812.9U Expired - Fee Related CN204755456U (en) | 2015-07-28 | 2015-07-28 | Hydraulic motor pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762874A (en) * | 2017-03-14 | 2017-05-31 | 徐工集团工程机械有限公司 | Hydraulic motor drainage pressure control device and method |
-
2015
- 2015-07-28 CN CN201520553812.9U patent/CN204755456U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762874A (en) * | 2017-03-14 | 2017-05-31 | 徐工集团工程机械有限公司 | Hydraulic motor drainage pressure control device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202579164U (en) | Plunger pump fluid end lubricating device | |
| CN201301466Y (en) | Rotary oil supply loop for hydraulic excavator | |
| CN201083213Y (en) | Super-high-pressure hydraulic pump station | |
| CN204755456U (en) | Hydraulic motor pressure relief device | |
| CN105156403A (en) | Automatic power recycling testing platform for hydraulic pump and hydraulic motor | |
| CN206694341U (en) | A kind of break-in tool oil path high-pressure pressure-relief valve structure | |
| CN206299626U (en) | Low-loss bottom pouring type pouring machine hydraulic system | |
| CN104019083A (en) | Hydraulic testing system | |
| CN203594637U (en) | Engineering mechanical pressure stabilization oil box device | |
| CN204403748U (en) | Bulb Turbine Units bearing oil pipeline structure | |
| CN105370564A (en) | Gear pump front cover with overflow protecting function | |
| CN210069442U (en) | Hydraulic turbine oil supply system | |
| CN202833109U (en) | Self-closing door oil pump | |
| CN103486019B (en) | Combination brake switch and proporting | |
| CN201314282Y (en) | Improved five-plunger emulsion pump | |
| CN205858596U (en) | The power set of offshore field Operating Pressure | |
| EP2891795A3 (en) | Hydraulic transmission, wind turbine power generating apparatus, and operation control method | |
| CN204026102U (en) | A kind of Oil sucking device and Lubricating-oil Station | |
| CN203743016U (en) | Sewage conveying system | |
| CN203584970U (en) | Oil supply system of oil press with cooling loop | |
| CN208131293U (en) | A kind of efficient centrifugal machine oil scraper ring | |
| RU148390U1 (en) | PUMP UNIT FOR HYDRAULIC TESTING OF TUBES (PUMP AND COMPRESSOR PIPES) | |
| CN217841973U (en) | Pilot pump oil suction and air suction prevention system | |
| CN202114966U (en) | Improved control device for oil way of hydraulic press | |
| CN203435575U (en) | Hydraulic system of tuna fishing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 |