CN201547066U - Hydraulic oil bypass-filtering device of concrete pump truck - Google Patents
Hydraulic oil bypass-filtering device of concrete pump truck Download PDFInfo
- Publication number
- CN201547066U CN201547066U CN2009201800390U CN200920180039U CN201547066U CN 201547066 U CN201547066 U CN 201547066U CN 2009201800390 U CN2009201800390 U CN 2009201800390U CN 200920180039 U CN200920180039 U CN 200920180039U CN 201547066 U CN201547066 U CN 201547066U
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Abstract
The utility model relates to a hydraulic oil bypass-filtering device of a concrete pump truck, which belongs to a component of the concrete pump truck. The hydraulic oil bypass-filtering device is characterized in that a bypass oil-return branch pipeline is arranged between the front end section and an oil tank of a main oil-return filter on a main oil-return pipeline of a hydraulic working device (i.e. a main oil cylinder), and an oil tank, and a bypass filter is mounted on the bypass oil-return branch pipeline and connected with a main oil-return filter in parallel; and with the high-precise filtering grade, the bypass filter works with the main oil-return filter, filters sundries and partial moisture contents in the hydraulic oil immediately, keeps the cleanliness of oil products and improves the work efficiency of the hydraulic working device.
Description
Technical field
The utility model belongs to concrete mixer, especially relates to a kind of concrete mixer hydraulic oil filtrating equipment.
Background technique
The fault of concrete pump vehicle hydraulic system nearly 80% normally causes owing to hydraulic oil is contaminated, and the pollution source of this fluid mainly contains two kinds: a kind of is solid particle, another kind is a moisture content, the cleanliness of hydraulic oil degree improves one-level, can prolong ten times the working life of hydraulic system primary component, in order to keep and improve the turbidity test of hydraulic oil, hydraulic system all is equipped with filtrating equipment; At present, the hydraulic oil filtration system of concrete mixer mainly adopts three kinds of forms, that is: a, filter are installed in the inlet port of main oil pump; B, filter are installed in the pressure hydraulic fluid port of arm-pump; C, filter are installed on the oil circuit of main system, but these mounting types all can not satisfy the high and big requirement of through-current capability of filter precision simultaneously, also can't filter the part moisture content in the hydraulic oil.
Summary of the invention
The purpose of this utility model provides a kind of concrete mixer hydraulic oil by-passing filter device, make the hydraulic oil filtration system of concrete mixer can reach the filter precision height and can reach the big requirement of hydraulic oil through-current capability again, can also absorb simultaneously the part moisture content in the hydraulic oil, the turbidity test that keep hydraulic oil for a long time, reduce the pollution of solid particle and moisture content to hydraulic oil, reduce the drain period, make hydraulic system can better satisfy need of work, increase work efficiency.
The purpose of this utility model is achieved like this: a kind of concrete mixer hydraulic oil by-passing filter device, comprise fuel tank, the inlet port filter, main oil pump, dropping valve I, the pressure oil filter of making a slip of the tongue, hydraulic work device is a master cylinder, dropping valve II and main return filter, the inlet port filter is installed in the inlet port place of main oil pump, the pressure oil filter of making a slip of the tongue is installed in the oil outlet place of arm-pump, main return filter then is installed on the main return line between hydraulic work device and the fuel tank, it is characterized in that: between the front end rigion of the main return filter on the main return line of hydraulic work device and fuel tank, bypass oil returning branch pipe road is set and on this bypass oil returning branch pipe road, bypass strainer is installed, this bypass strainer is in parallel with main return filter, the filter precision grade of this bypass strainer is special smart the filtration, be that the particle diameter that filters out of filter core is in 1 μ m-5 mu m range, work together with main return filter, the flow that passes through only accounts for about 5% of total discharge, when hydraulic work device: the oil return of master cylinder is filtered when entering fuel tank through main return filter, part oil return is through bypass oil returning branch pipe road, bypass strainer filter precision on this bye-pass is very high, fine impurity in can not only filter oil, and can filter part moisture content in the hydraulic oil, bypass strainer is worked together with main return filter, also do not influence whole hydraulic system proper functioning even stop up, and in time impurity screening and part moisture content, keep the oil product turbidity test for a long time, improve the working efficiency of hydraulic work device.
The concrete mixer hydraulic oil by-passing filter apparatus structure that the utility model proposed is reasonable, uses reliably, and in time impurity screening and moisture content keep the oil product turbidity test for a long time, improve the working efficiency of hydraulic work device.
Now in conjunction with the accompanying drawings and embodiments the concrete mixer hydraulic oil by-passing filter device that the utility model proposed is further described.
Description of drawings
Fig. 1 is the hydraulic principle schematic representation of the concrete mixer hydraulic oil by-passing filter device that proposes of the utility model.
Among Fig. 1: 1, make a slip of the tongue filter 6, hydraulic work device 7, dropping valve II 8, main return filter 9, bypass strainer of fuel tank 2, inlet port filter 3, main oil pump 4, dropping valve I 5, pressure oil
Specific implementation method
As can be seen from Figure 1: a kind of concrete mixer hydraulic oil by-passing filter device, comprise fuel tank 1, inlet port filter 2, main oil pump 3, dropping valve I 4, the pressure oil filter 5 of making a slip of the tongue, hydraulic work device 6, dropping valve II 7 and main return filter 8, inlet port filter 2 is installed in the inlet port place of main oil pump 3, the pressure oil filter 5 of making a slip of the tongue is installed in the oil outlet place of arm-pump or the filler opening place of hydraulic work device 6, main return filter 8 then is installed on the main return line between hydraulic work device 6 and the fuel tank 1, it is characterized in that: between the front end rigion of the main return filter 8 on the main return line of hydraulic work device 6 and fuel tank 1, bypass oil returning branch pipe road is set and bypass strainer 9 is installed on this bypass oil returning branch pipe road, this bypass strainer 9 is in parallel with main return filter 8, the filter precision grade of this bypass strainer 9 is special smart the filtration, be that the particle diameter that filters out of filter core is in 1 μ m-5 mu m range, work together with main return filter 8, the flow that passes through only accounts for about 5% of total discharge, when the oil return of hydraulic work device 6 enters fuel tank 1 through main return filter 8 filtrations, part oil return is through bypass oil returning branch pipe road, bypass strainer 9 filter precisioies on this bye-pass are very high, can not only filter out the fine impurity in the hydraulic oil, and can filter out part moisture content in the hydraulic oil, bypass strainer 9 is worked together with main return filter 8, also do not influence whole hydraulic system proper functioning even stop up, and in time impurity screening and part moisture content, keep the oil product turbidity test for a long time, improve the working efficiency of hydraulic work device.
Claims (1)
1. concrete mixer hydraulic oil by-passing filter device, comprise fuel tank (1), inlet port filter (2), main oil pump (3), dropping valve I (4), pressure oil make a slip of the tongue filter (5), hydraulic work device (6), dropping valve II (7) and main return filter (8), it is characterized in that: bypass oil returning branch pipe road is set and on this bypass oil returning branch pipe road bypass strainer (9) is installed between the front end rigion of the main return filter (8) on the main return line of hydraulic work device (6) and fuel tank (1), this bypass strainer (9) is in parallel with main return filter (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201800390U CN201547066U (en) | 2009-10-22 | 2009-10-22 | Hydraulic oil bypass-filtering device of concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201800390U CN201547066U (en) | 2009-10-22 | 2009-10-22 | Hydraulic oil bypass-filtering device of concrete pump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547066U true CN201547066U (en) | 2010-08-11 |
Family
ID=42602238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201800390U Expired - Fee Related CN201547066U (en) | 2009-10-22 | 2009-10-22 | Hydraulic oil bypass-filtering device of concrete pump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547066U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400981A (en) * | 2011-11-30 | 2012-04-04 | 北京二七轨道交通装备有限责任公司 | Equipment for cleaning hydraulic system |
| CN102678683A (en) * | 2012-04-23 | 2012-09-19 | 北京市三一重机有限公司 | Filtering device and engineering machine with same |
| CN102852908A (en) * | 2011-06-28 | 2013-01-02 | 天津建筑机械厂 | Online filter system of hydraulic oil for caterpillar bulldozer |
| CN103758811A (en) * | 2014-01-08 | 2014-04-30 | 江苏大洋精锻有限公司 | Bypass pressure relief system |
| CN112246008A (en) * | 2020-10-19 | 2021-01-22 | 中国能源建设集团东北电力第一工程有限公司 | Precise plate type oil filter |
-
2009
- 2009-10-22 CN CN2009201800390U patent/CN201547066U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852908A (en) * | 2011-06-28 | 2013-01-02 | 天津建筑机械厂 | Online filter system of hydraulic oil for caterpillar bulldozer |
| CN102400981A (en) * | 2011-11-30 | 2012-04-04 | 北京二七轨道交通装备有限责任公司 | Equipment for cleaning hydraulic system |
| CN102678683A (en) * | 2012-04-23 | 2012-09-19 | 北京市三一重机有限公司 | Filtering device and engineering machine with same |
| CN102678683B (en) * | 2012-04-23 | 2015-05-13 | 北京市三一重机有限公司 | Filtering device and engineering machine with same |
| CN103758811A (en) * | 2014-01-08 | 2014-04-30 | 江苏大洋精锻有限公司 | Bypass pressure relief system |
| CN112246008A (en) * | 2020-10-19 | 2021-01-22 | 中国能源建设集团东北电力第一工程有限公司 | Precise plate type oil filter |
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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: 20100811 Termination date: 20161022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |