CN103062153B - Self-lubricating device of plunger-type multi-stage cylinder tube guiding slider for autodumper - Google Patents
Self-lubricating device of plunger-type multi-stage cylinder tube guiding slider for autodumper Download PDFInfo
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- CN103062153B CN103062153B CN201310028273.2A CN201310028273A CN103062153B CN 103062153 B CN103062153 B CN 103062153B CN 201310028273 A CN201310028273 A CN 201310028273A CN 103062153 B CN103062153 B CN 103062153B
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Abstract
The invention discloses a self-lubricating device of a plunger-type multi-stage cylinder tube guiding slider for an autodumper, and relates to an automobile part. A plurality of rows of lubricating oil grooves and oil-guiding grooves are evenly arranged on the surface of an outer cylinder located at a cylinder guiding slider section. When the cylinder is lifted after high pressure oil enters the cylinder, the high pressure oil inside the cylinder flows into the lubricating oil grooves through the oil guiding grooves. Since the cylinder guiding slider section and the inner wall of an upper cylinder are in clearance fit with each other, part of the lubricating oil grooves is certain to be completely attached to the upper cylinder to form a relatively-sealed zone. The high pressure oil forms a high pressure zone within the relatively-sealed lubricating oil grooves to form mutual thrust. When the pressure reaches to a certain extent, a certain distance between the cylinder guiding slider section and the inner wall of the upper cylinder is generated, two friction surfaces are fully covered with the high pressure oil, an oil film is formed between the friction surfaces, frictional loss between the same is reduced, service life of the cylinder is greatly improved, and cylinder scuffing is avoided.
Description
Technical field
The present invention relates to a kind of automobile component, be specifically related to dump truck plunger type Multi-stage cylinder cylinder barrel guide runner self-lubricating device.This self-lubricating device also can be used for other plunger type single-acting multistage hydraulic cylinders, for solving the excessive friction problem between the guide runner section of cylinder barrel afterbody and higher level's inner wall of cylinder.
Background technology
Carriage of dump truck lifting preset type hydraulic oil cylinder is plunger type single-acting multistage hydraulic cylinder, and this kind of oil cylinder is because its layout is simple, compact conformation, lifting efficiency are high, and lifting force is less, and during lifting, compartment lateral stiffness is large, so be widely used.But this kind of structural requirement has longer stroke, it is all generally the structure of employing 3 grades, 4 grades or more levels.Oil cylinder is in the process of lifting and decline, the guide runner section of cylinder barrel afterbody will inevitably produce friction with higher level's inner wall of cylinder, under the bad working environments conditions such as especially fully loaded at dump truck, unbalance loading and Uneven road, friction between them is more serious, because rubbing surface lubrication is bad, greatly reduce the service life of oil cylinder.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides dump truck plunger type Multi-stage cylinder cylinder barrel guide runner self-lubricating device, utilize the hydraulic oil of cylinder barrel inside to form lubricating oil film between guide runner part and higher level's inner wall of cylinder, thus reduce friction and wear.
The present invention is achieved through the following technical solutions: a kind of dump truck plunger type Multi-stage cylinder cylinder barrel guide runner self-lubricating device, dump truck plunger type Multi-stage cylinder is plunger type single-action hydrocylinder, and it is made up of base cylinder, one-level cylinder barrel, secondary cylinder barrel, three grades of cylinder barrels, piston rod and oil-ins.Described secondary cylinder barrel and one-level cylinder barrel arrange outer spacing ring, and described piston rod, three grades of cylinder barrels and secondary cylinder barrel arrange interior spacing ring, and outer cylinder pulls inner cylinder tube to move by inside and outside spacing ring; Described base cylinder is fixed on hinged axle bed, and cylinder bottom is arranged at the bottom of base cylinder, and base cylinder arranges oil-in, and hydraulic oil enters multistage cylinder barrel by oil-in and oil through.The bottom of described piston rod, three grades of cylinder barrels, secondary cylinder barrel and one-level cylinder barrels is cylinder barrel guide runner section.It is characterized in that: on the external cylindrical surface of described cylinder barrel guide runner section, more uniform making is arranged, often arranged many oil-ways and draw oil groove.Described oil-way is that circumferentially face diameter is to the strip arc groove made, and the described oil groove that draws is the bar-shaped trough axially made along the face of cylinder; The middle part of drawing oil groove one end and oil-way is through, draws the oil groove other end and extends to cylinder barrel guide runner section end.After hydraulic oil enters cylinder barrel by oil-in, when cylinder barrel starts lifting, the hydraulic oil in cylinder barrel flows into oil-way by drawing oil groove.
Oil-way and to draw oil groove be upper and lower two rows, upper and lower two row's oil-ways and draw oil groove interlaced arrangement, make to draw oil groove and oil-way is uniform completely in cylinder barrel guide runner section.
The invention has the beneficial effects as follows:
1, when hydraulic jack is started working, hydraulic oil by cylinder barrel afterbody guide runner part at different levels uniform offer draw oil groove and oil-way, make to produce certain being separated between guide runner part with higher level's inner wall of cylinder, and form oil film, and then the friction and wear reduced when oil cylinder stretches between them, improve the service life of oil cylinder.
2, compact conformation, easy to make, be convenient to promote the use of.
Accompanying drawing explanation
The present invention is further described with embodiment with reference to the accompanying drawings below.
Fig. 1 is installation site of the present invention schematic diagram;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the A-A enlarged fragmentary cross section of Fig. 2.
In figure: 1, piston rod, 2, three grades of cylinder barrels, 3, secondary cylinder barrel, 4, one-level cylinder barrel, 5, base cylinder, 6, outer spacing ring, 7, oil through, 8, interior spacing ring; 9, cylinder bottom, 10, hinged axle bed, 11, cylinder barrel guide runner section, 12, oil-way, 13, draw oil groove, 14, oil-in.
Detailed description of the invention
A kind of dump truck plunger type Multi-stage cylinder cylinder barrel guide runner self-lubricating device, dump truck plunger type Multi-stage cylinder is plunger type single-action hydrocylinder, and the present embodiment adopts three grades of oil cylinders, adds upper piston rod, has four lifting sections.
It is made up of base cylinder 5, one-level cylinder barrel 4, secondary cylinder barrel 3, three grades of cylinder barrels 2, piston rod 1 and oil-ins 14.Described secondary cylinder barrel 3 and one-level cylinder barrel 4 arrange outer spacing ring 6, and described piston rod 1, three grades of cylinder barrels 2 and secondary cylinder barrel 3 arrange interior spacing ring 8, and outer cylinder pulls inner cylinder tube to move by inside and outside spacing ring 8,6.Described base cylinder 5 is fixed on hinged axle bed 10, and hinged axle bed 10 is arranged on self-discharging automobile chassis, and piston rod 1 end is connected with compartment.Cylinder bottom 9 is arranged at the bottom of base cylinder 5, base cylinder 5 is arranged oil-in 14, and hydraulic oil enters multistage cylinder barrel by oil-in 14 and oil through 7.The bottom of described piston rod 1, three grades of cylinder barrels 2, secondary cylinder barrel 3 and one-level cylinder barrels 4 is cylinder barrel guide runner section 11.It is characterized in that: on the external cylindrical surface of described cylinder barrel guide runner section 11, more uniform making is arranged, often arranged many oil-ways 12 and draw oil groove 13.Described oil-way 12 is that circumferentially face diameter is to the strip arc groove made, and the described oil groove 13 that draws is the bar-shaped trough axially made along the face of cylinder; The middle part of drawing oil groove 13 one end and oil-way 12 is through, draws oil groove 13 other end and extends to cylinder barrel guide runner section 11 end.After hydraulic oil enters cylinder barrel by oil-in 14, when cylinder barrel starts lifting, the hydraulic oil in cylinder barrel flows into oil-way 12 by drawing oil groove 13.Because the fit clearance between cylinder barrel guide runner section 11 and higher level's inner wall of cylinder is about 0.25mm, and the diameter range of cylinder barrel is between 120-190mm, when cylinder efficient, the inwall of partial lubrication oil groove 12 and higher level's cylinder barrel must be had to fit completely, form relative seal area.Such hydraulic oil forms higher-pressure region in the oil-way 12 of relative closure, thus produce mutual thrust, when pressure acquires a certain degree, cylinder barrel guide runner section 11 will produce certain being separated with higher level's inner wall of cylinder, make hydraulic oil be full of two friction surfaces, and form oil film between them, thus reduce the frictional dissipation between them, large send out the service life of improving oil cylinder, and avoid oil cylinder and occur pull-cylinder phenomena.
The present embodiment oil-way 12 and draw oil groove 13 for upper and lower two rows, often arranges ten, upper and lower two row's oil-ways 12 and draw oil groove 13 interlaced arrangement, makes to draw oil groove 13 and oil-way 12 is uniform completely in cylinder barrel guide runner section 11.Make hydraulic oil be full of whole friction surface, and form uniform oil film between them, high lubricating effect.
Claims (2)
1. a dump truck plunger type Multi-stage cylinder cylinder barrel guide runner self-lubricating device, dump truck plunger type Multi-stage cylinder is plunger type single-action hydrocylinder, and it is made up of base cylinder (5), one-level cylinder barrel (4), secondary cylinder barrel (3), three grades of cylinder barrels (2), piston rod (1) and oil-ins (14); Described secondary cylinder barrel (3) and one-level cylinder barrel (4) arrange outer spacing ring (6), described piston rod (1), three grades of cylinder barrels (2) and secondary cylinder barrel (3) arrange interior spacing ring (8), and outer cylinder pulls inner cylinder tube to move by inside and outside spacing ring (8,6); Described base cylinder (5) is fixed on hinged axle bed (10), and cylinder bottom (9) is arranged at the bottom of base cylinder (5), base cylinder (5) is arranged oil-in (14), and hydraulic oil enters multistage cylinder barrel by oil-in (14) and oil through (7); The bottom of described piston rod (1), three grades of cylinder barrels (2), secondary cylinder barrel (3) and one-level cylinder barrel (4) is cylinder barrel guide runner section (11); It is characterized in that: on the external cylindrical surface of described cylinder barrel guide runner section (11), more uniform making is arranged, often arranged many oil-ways (12) and draw oil groove (13); Described oil-way (12) is that circumferentially face diameter is to the strip arc groove made, and the described oil groove (13) that draws is the bar-shaped trough axially made along the face of cylinder; The middle part of drawing oil groove (13) one end and oil-way (12) is through, draws oil groove (13) other end and extends to cylinder barrel guide runner section (11) end; After hydraulic oil enters cylinder barrel by oil-in (14), when cylinder barrel starts lifting, the hydraulic oil in cylinder barrel flows into oil-way (12) by drawing oil groove (13).
2. dump truck plunger type Multi-stage cylinder cylinder barrel guide runner self-lubricating device according to claim 1, it is characterized in that: described oil-way (12) and draw oil groove (13) for upper and lower two row, upper and lower two rows' oil-way (12) and draw oil groove (13) interlaced arrangement, make to draw oil groove (13) and oil-way (12) is uniform completely in cylinder barrel guide runner section (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310028273.2A CN103062153B (en) | 2013-01-24 | 2013-01-24 | Self-lubricating device of plunger-type multi-stage cylinder tube guiding slider for autodumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310028273.2A CN103062153B (en) | 2013-01-24 | 2013-01-24 | Self-lubricating device of plunger-type multi-stage cylinder tube guiding slider for autodumper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103062153A CN103062153A (en) | 2013-04-24 |
| CN103062153B true CN103062153B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310028273.2A Expired - Fee Related CN103062153B (en) | 2013-01-24 | 2013-01-24 | Self-lubricating device of plunger-type multi-stage cylinder tube guiding slider for autodumper |
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| CN (1) | CN103062153B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006061061A1 (en) * | 2004-12-11 | 2006-06-15 | Bosch Rexroth Ag | Hydraulic cylinder in particular for a crude oil supply pump |
| CN201071855Y (en) * | 2007-06-20 | 2008-06-11 | 成都市新津光辉机械实业有限公司 | Multilevel sleeve type hydraulic oil cylinder |
| CN101532522A (en) * | 2009-04-22 | 2009-09-16 | 黄培华 | Improved single-action telescopic sleeve hydraulic cylinder |
| CN201916276U (en) * | 2010-12-16 | 2011-08-03 | 苏州龙盛测试设备有限公司 | Static-pressure plunger type hydraulic cylinder |
| CN202215530U (en) * | 2011-05-24 | 2012-05-09 | 泸州市江阳区红岩机械有限公司 | Single acting multistage oil cylinder |
| CN203114781U (en) * | 2013-01-24 | 2013-08-07 | 徐州科源液压股份有限公司 | Plunger type multistage cylinder barrel guiding sliding block self-lubricating device of autodumper |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5962703A (en) * | 1982-09-29 | 1984-04-10 | Shin Meiwa Ind Co Ltd | Multi-reciprocating multi-stage oil-pressure cylinder |
| JP3253920B2 (en) * | 1998-05-26 | 2002-02-04 | 太陽鉄工株式会社 | Multi-stage cylinder device |
-
2013
- 2013-01-24 CN CN201310028273.2A patent/CN103062153B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006061061A1 (en) * | 2004-12-11 | 2006-06-15 | Bosch Rexroth Ag | Hydraulic cylinder in particular for a crude oil supply pump |
| CN201071855Y (en) * | 2007-06-20 | 2008-06-11 | 成都市新津光辉机械实业有限公司 | Multilevel sleeve type hydraulic oil cylinder |
| CN101532522A (en) * | 2009-04-22 | 2009-09-16 | 黄培华 | Improved single-action telescopic sleeve hydraulic cylinder |
| CN201916276U (en) * | 2010-12-16 | 2011-08-03 | 苏州龙盛测试设备有限公司 | Static-pressure plunger type hydraulic cylinder |
| CN202215530U (en) * | 2011-05-24 | 2012-05-09 | 泸州市江阳区红岩机械有限公司 | Single acting multistage oil cylinder |
| CN203114781U (en) * | 2013-01-24 | 2013-08-07 | 徐州科源液压股份有限公司 | Plunger type multistage cylinder barrel guiding sliding block self-lubricating device of autodumper |
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| CN103062153A (en) | 2013-04-24 |
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