CN202577442U - Graded hydraulic system of loading machine - Google Patents
Graded hydraulic system of loading machine Download PDFInfo
- Publication number
- CN202577442U CN202577442U CN 201220239520 CN201220239520U CN202577442U CN 202577442 U CN202577442 U CN 202577442U CN 201220239520 CN201220239520 CN 201220239520 CN 201220239520 U CN201220239520 U CN 201220239520U CN 202577442 U CN202577442 U CN 202577442U
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- oil
- graded
- hydraulic system
- hydraulic
- machine
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- Expired - Fee Related
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Abstract
The utility model discloses a graded hydraulic system of a loading machine. The graded hydraulic system of the loading machine comprises a hydraulic pump and an oil cylinder which are sequentially connected, wherein the hydraulic pump is connected with the oil cylinder through an oil passage; the oil passage comprises a main oil passage and a graded oil passage; and a pressure relay is installed on the graded oil passage. The graded hydraulic system of the loading machine can effectively use hydraulic oil, can ensure timely and effective oil supply during operation of the machine, and can improve the using efficiency of the machine.
Description
Technical field
The utility model relates to a kind of hydraulic system, a kind of loader classification hydraulic system of saying so more specifically.
Background technology
Loader is a kind of cubic metre of earth and stone construction machinery that is widely used in construction projects such as highway, railway, building, water power, harbour, mine; It is mainly used in bulk materials such as shovel dress soil, sandstone, lime, coal, also can dig operation to the slight shovel of works such as ore, pan soil.
Current loader major part all adopts the hydraulic system of an oil circuit, and oil circuit has the hydraulic oil of pressure to the oil cylinder sacrificial vessel, when operation; Hydraulic oil provides the hydraulic pressure ability to oil cylinder, makes oil cylinder to working machine active force is provided, and every machine all is provided with load limit; When carrying when excessive, the single-stage oil circuit can't in time provide needed hydraulic pressure can, machine can't normal operation; When serious, the safety that jeopardizes personnel and machine.
The utility model content
The utility model provides a kind of loader grouping hydraulic system, and its purpose is to overcome hydraulic circuit that domestic existing loader exists and can't carries when excessive at loader, and the deficiency of needed hydraulic oil in time is provided.
The technical scheme that the utility model adopts is following:
A kind of loader classification hydraulic system comprises the hydraulic pump and the oil cylinder that connect successively, connects through oil circuit between hydraulic pump and the oil cylinder, and said oil circuit comprises working connection and classification oil circuit, on the said classification oil circuit pressure switch is installed.
Can know through above-mentioned description the utility model, and comparing with prior art, the advantage of the utility model is:
1, the control of the utility model through the fluid power relay is born a heavy burden when big at machine, opens the classification oil circuit,
Hydraulic oil can be provided timely and effectively, guarantee the machine operate as normal; Bear a heavy burden hour at machine, close the classification oil circuit, improved the service efficiency of machine greatly, guaranteed the operation work of machine hydraulic oil.
2, the utility model is simple in structure, is easy to realize, has promptly improved machine efficiency, has strengthened personnel again
Safety assurance with machine.
Description of drawings
Fig. 1 is the hydraulic circuit schematic diagram of the utility model.
The specific embodiment
The following specific embodiment with reference to description of drawings the utility model.
With reference to Fig. 1; A kind of loader classification hydraulic system comprises the hydraulic pump 1 and oil cylinder 2 that connect successively, and oil cylinder 2 is used for supporting the loading bin (figure does not draw) of loader; Connect through oil circuit 3 between hydraulic pump 1 and the oil cylinder 2; This oil circuit 3 comprises working connection 31 and classification oil circuit 32, from figure, can find out, pressure switch 4 is installed on the classification oil circuit 32.When bearing a heavy burden when big, the oil pressure in the oil circuit 3 is higher, and pressure switch 4 can immediately be responded to oil pressure, when oil pressure hour, classification oil circuit 32 breaks off; When oil pressure was big, classification oil circuit 32 was opened, and supplied with to guarantee enough hydraulic oil.
The above-mentioned specific embodiment that is merely the utility model, but the design concept of the utility model is not limited thereto allly utilizes this design that the utility model is carried out the change of unsubstantiality, all belongs to the behavior of invading the utility model protection domain.
Claims (1)
1. a loader classification hydraulic system comprises the hydraulic pump and the oil cylinder that connect successively, connects through oil circuit between hydraulic pump and the oil cylinder, and it is characterized in that: said oil circuit comprises working connection and classification oil circuit, on the said classification oil circuit pressure switch is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220239520 CN202577442U (en) | 2012-05-25 | 2012-05-25 | Graded hydraulic system of loading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220239520 CN202577442U (en) | 2012-05-25 | 2012-05-25 | Graded hydraulic system of loading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202577442U true CN202577442U (en) | 2012-12-05 |
Family
ID=47246871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220239520 Expired - Fee Related CN202577442U (en) | 2012-05-25 | 2012-05-25 | Graded hydraulic system of loading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202577442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669458A (en) * | 2013-12-09 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Loader for coal mine |
-
2012
- 2012-05-25 CN CN 201220239520 patent/CN202577442U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669458A (en) * | 2013-12-09 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Loader for coal mine |
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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: 20121205 Termination date: 20180525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |