CN201982093U - Hydraulic system of coal mining machine - Google Patents
Hydraulic system of coal mining machine Download PDFInfo
- Publication number
- CN201982093U CN201982093U CN2011200011370U CN201120001137U CN201982093U CN 201982093 U CN201982093 U CN 201982093U CN 2011200011370 U CN2011200011370 U CN 2011200011370U CN 201120001137 U CN201120001137 U CN 201120001137U CN 201982093 U CN201982093 U CN 201982093U
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- pump
- mining machine
- reversing valves
- valve
- hydraulic system
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Abstract
The utility model discloses a hydraulic system of a coal mining machine, which mainly comprises an oil tank, a variable capacity pump, a variable capacity mechanism, a four-way reversing valve, a hydraulic actuating component, an auxiliary gear pump, two tee reversing valves, an overflow valve and a cooler. One end of the variable capacity pump is connected with the oil tank through an oil suction and filtration device by a pipeline. The hydraulic system has good self-adaptability to power. The output of the pump depends on load requirements of the machine, and the power waste is reduced effectively. In addition, due to integration of the multi-way valves, the output pressure of a system can be increased conveniently, the power-weight ratio can be increased, and the control accuracy of the outdoor coal mining machine can be further improved due to electro-hydraulic proportional control. With the two tee reversing valves, the oil temperature can be adjusted according to seasonal temperature changes and can be prevented from being too high.
Description
Technical field
The utility model relates to a kind of hydraulic system, relates in particular to a kind of hydraulic system of strip coal mining machine.
Background technology
Many open coal mines many places of China are remote area in the region, and environment is more abominable, and season, the temperature difference and region difference variation were bigger, and hydraulic system is because of the specific (special) requirements of its working media, and the serviceability temperature of fluid is had very crucial requirement.In addition, itself also is in the starting stage strip coal mining machine, and the design of self also belongs to the slowly optimizing phase, and original hydraulic system adopts simple throttling speed control circuit, and loop element relatively disperses, inefficiency, leak high, integrated level is low.
Summary of the invention
The purpose of this utility model is to solve the variation of temperature that can conform, and has that power-weight ratio is big, through-current capacity big, leakage is low, efficient is high, integrated level is high and functional characteristics such as load-sensitive, and a kind of coal-mining machine hydraulic system is provided.
The technical scheme in the invention for solving the technical problem is:
A kind of coal-mining machine hydraulic system, mainly by fuel tank, variable pump, stroking mechanism, four way reversing valves, hydraulic actuator, auxiliary gear pump, three-way diverter valve, overflow valve and cooler are formed, its variable pump one end is connected with fuel tank by pipeline through the oil suction oil filter, the other end is through stroking mechanism, insert four way reversing valves, four way reversing valve load sensing circuits are connected with stroking mechanism, the stroking mechanism of pump connects control pump, the actuator port of the every plate valve of four way reversing valves connects hydraulic actuator respectively, and auxiliary circuit fluid connects cooler and overflow valve respectively after gear pump connects the two-bit triplet reversal valve.
The beneficial effects of the utility model are:
1, the utlity model has good power adaptive function, the output of pump decides according to the loading demand of machine, reduced power dissipation effectively, in addition owing to adopted integrated banked direction control valves, the raising of the system that is more convenient for output pressure, can improve power-weight ratio, electric-hydraulic proportion control makes that the control accuracy of strip coal mining machine is further improved.
2, the utility model has been installed the two-bit triplet reversal valve, can regulate the oil temperature according to the variation of seasonal temperature, prevents that the oil temperature is too high or too low.
3, the circuit pressure of each executive component can be set respectively in each plate valve of the utility model banked direction control valves, can work alone between each valve, and not be subjected to separately interference.The flow of oil pump is regulated according to the requirement of whole system, has significantly improved operating efficiency.
Description of drawings
Fig. 1 is the utility model coal-mining machine hydraulic system figure
The specific embodiment
Among Fig. 1, a kind of coal-mining machine hydraulic system, mainly by fuel tank 1, variable pump 2, stroking mechanism 3, four way reversing valves 4, hydraulic actuator 5, auxiliary gear pump 6, three-way diverter valve 7, overflow valve 8 and cooler 9 are formed, it is characterized in that: variable pump 2 one ends are connected with fuel tank 1 by pipeline through the oil suction oil filter, the other end is through stroking mechanism 3, insert four way reversing valves 4, four way reversing valves, 4 load sensing circuits are connected with stroking mechanism 3, the stroking mechanism 3 of pump connects control pump 2, the actuator port of four way reversing valves, 4 every plate valves connects hydraulic actuator 5 respectively, and auxiliary circuit fluid connects cooler 9 and overflow valve 8 respectively after gear pump 6 connects two-bit triplet reversal valve 7.
Operating principle: variable pump 2 one ends are connected with fuel tank 1 by pipeline through the oil suction oil filter, the other end is through the stroking mechanism 3 of pump, enter four way reversing valves 4, the stroking mechanism 3 of four way reversing valves, 4 load sensing circuits and pump is connected, the stroking mechanism 3 link variable pumps 2 of pump, the actuator port branch of four way reversing valves, 4 every plate valves adds and connects hydraulic actuator 5, and auxiliary circuit fluid connects cooler 9 and overflow valve 8 respectively after gear pump 6 connects two-bit triplet reversal valve 7.When environment temperature is too low, in the time of the pump start difficulty, the oil-out of two-bit triplet reversal valve 7 is transferred to the oil circuit of overflow valve 8, the high pressurized overflow of fluid produces heat, and fluid is heated; Summer environment temperature height, too high during work for preventing the oil temperature, adopt cooler 9 loops, reduce the oil temperature.
Claims (1)
1. coal-mining machine hydraulic system, mainly by fuel tank (1), variable pump (2), stroking mechanism (3), four way reversing valves (4), hydraulic actuator (5), auxiliary gear pump (6), three-way diverter valve (7), overflow valve (8) and cooler (9) are formed, it is characterized in that: variable pump (2) one ends are connected with fuel tank (1) by pipeline through the oil suction oil filter, the other end is through stroking mechanism (3), insert four way reversing valves (4), four way reversing valves (4) load sensing circuit is connected with stroking mechanism (3), the stroking mechanism of pump (3) connects control pump (2), the actuator port of the every plate valve of four way reversing valves (4) connects hydraulic actuator (5) respectively, and auxiliary circuit fluid connects cooler (9) and overflow valve (8) respectively after gear pump (6) connects two-bit triplet reversal valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200011370U CN201982093U (en) | 2011-01-05 | 2011-01-05 | Hydraulic system of coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200011370U CN201982093U (en) | 2011-01-05 | 2011-01-05 | Hydraulic system of coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982093U true CN201982093U (en) | 2011-09-21 |
Family
ID=44609556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200011370U Expired - Lifetime CN201982093U (en) | 2011-01-05 | 2011-01-05 | Hydraulic system of coal mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982093U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108865A (en) * | 2011-01-05 | 2011-06-29 | 河北天择重型机械有限公司 | Hydraulic system of coal mining machine |
| CN102410287A (en) * | 2011-12-12 | 2012-04-11 | 天地上海采掘装备科技有限公司 | Large-inclination-angle coal mining machine and oil absorbing device thereof |
| CN105465073A (en) * | 2015-12-31 | 2016-04-06 | 浙江三一装备有限公司 | Track crane and auxiliary hydraulic system thereof |
| EP3067516A1 (en) * | 2015-03-13 | 2016-09-14 | Caterpillar Global Mining Europe GmbH | Hydraulic assembly for a mining system |
| CN113153865A (en) * | 2021-03-04 | 2021-07-23 | 宁波保税区海天智胜金属成型设备有限公司 | Hydraulic system oil circuit cooling structure |
-
2011
- 2011-01-05 CN CN2011200011370U patent/CN201982093U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108865A (en) * | 2011-01-05 | 2011-06-29 | 河北天择重型机械有限公司 | Hydraulic system of coal mining machine |
| CN102410287A (en) * | 2011-12-12 | 2012-04-11 | 天地上海采掘装备科技有限公司 | Large-inclination-angle coal mining machine and oil absorbing device thereof |
| CN102410287B (en) * | 2011-12-12 | 2016-05-04 | 天地上海采掘装备科技有限公司 | A kind of high inclination-angle coal-winning machine and Oil sucking device thereof |
| EP3067516A1 (en) * | 2015-03-13 | 2016-09-14 | Caterpillar Global Mining Europe GmbH | Hydraulic assembly for a mining system |
| US9982799B2 (en) | 2015-03-13 | 2018-05-29 | Caterpillar Global Mining Europe Gmbh | Hydraulic assembly for a mining system |
| CN105465073A (en) * | 2015-12-31 | 2016-04-06 | 浙江三一装备有限公司 | Track crane and auxiliary hydraulic system thereof |
| CN105465073B (en) * | 2015-12-31 | 2019-01-18 | 浙江三一装备有限公司 | Crawler crane and its auxiliary hydraulic system |
| CN113153865A (en) * | 2021-03-04 | 2021-07-23 | 宁波保税区海天智胜金属成型设备有限公司 | Hydraulic system oil circuit cooling structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110921 Effective date of abandoning: 20120718 |