CN103115139A - Lubricating oil inner cavity self-filtering speed reducer used on lorry-mounted crane lifting hoist - Google Patents
Lubricating oil inner cavity self-filtering speed reducer used on lorry-mounted crane lifting hoist Download PDFInfo
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- CN103115139A CN103115139A CN2013100408815A CN201310040881A CN103115139A CN 103115139 A CN103115139 A CN 103115139A CN 2013100408815 A CN2013100408815 A CN 2013100408815A CN 201310040881 A CN201310040881 A CN 201310040881A CN 103115139 A CN103115139 A CN 103115139A
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Abstract
The invention discloses a lubricating oil inner cavity self-filtering speed reducer used on a lorry-mounted crane lifting hoist, and relates to engineering machinery. A two-way inner gearing gear pump is arranged in a large flange inner hole. The gear pump is connected with a brake connection shaft through an internal spline to obtain power. The gear pump is provided with an oil inlet A and an oil outlet B. When the lifting hoist goes up and down, the gear pump is steered along the positive direction and the negative direction. For the gear pump, under the control of a one-way valve, functions of the oil inlet A and the oil outlet B change. Two filters are connected outside the speed reducer to filter lubricating oil in an uninterrupted mode. The filtered lubricating oil enters into a variable speed component (11) box body through a pipe. The filtering effect is good, and the service life of the speed reducer is prolonged greatly. The early failure response rate is reduced effectively. The volume of the speed reducer is not increased basically. The structure is compact, the manufacture and the installation are convenient, the cost is low, and the popularization is convenient.
Description
Technical field
The present invention relates to a kind of engineering machinery, be specifically related to the lubricant oil inner chamber inherent filtration formula speed reducer that uses on a kind of mobile crane hoisting winding.Also can be used for the hoisting of the engineering machinery such as crawler crane, excavator, luffing, revolution and traveling retarding mechanism.
Background technique
The speed reducer that uses on the mobile crane hoisting winding, gear in the course of the work, the iron filings that produce due to the gear engaging friction, scale etc. are if untimely removing affects life-span of bearing and rotary oil seal.When especially heavily loaded, can make bearing enclose and gear the defectives such as spot corrosion, quickening tooth surface abrasion occur too early.The speed reducer that uses on the mobile crane hoisting winding at present, the lubricant oil of pinion cavity adopts the way of periodic replacement, and its deficiency is to need to shut down when changing oil, and excessive fuel consumption recovery operation amount is large, and lubricating oil consumption is large, improves operating cost.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides the lubricant oil inner chamber inherent filtration formula speed reducer that uses on a kind of mobile crane hoisting winding, at external two filters of speed reducer, by two-way crescent gear pump pump oil, control the break-make of itself and filler opening by one-way valve, make lubricant oil circulating filtration incessantly when speed reducer is worked.
The present invention is achieved through the following technical solutions: the lubricant oil inner chamber inherent filtration formula speed reducer that uses on a kind of mobile crane hoisting winding, it comprises: large flange plate, brake assemblies, braking coupling shaft, speed change assembly and oil hydraulic motor.Described brake assemblies is self-coupling type face contact friction sheet arrestment mechanism, and the moving plate of brake strip is connected with the braking coupling shaft by spline, and the still of brake strip is connected with large flange plate.Described speed change assembly is planet-gear speed reducer, and the output terminal of star gear reduction unit is bull gear, and described bull gear one end connects the hoisting winding reel, and the bull gear the other end is bolted on bearing support.Described bearing support is connected with large flange plate with the bearing of being connected by outside framework oil seal; Braking coupling shaft one end is connected with the output shaft of oil hydraulic motor by internal spline, and the braking coupling shaft the other end is connected with the central gear of planetary gear reducing mechanism by internal spline.It is characterized in that: in the endoporus of described large flange plate end, two-way crescent gear pump is set.Described two-way crescent gear pump is comprised of small gear, pump cover, internal gear and the pump housing.Described pump cover and pump housing two ends are fixed on large flange plate with back-up ring with the hole respectively.Described small gear is connected and obtains power with the braking coupling shaft by internal spline; Described two-way crescent gear pump has oil inlet and outlet A and oil inlet and outlet B, and along with the variation of gear pump positive and reverse steering, oil inlet and outlet A and B function change thereupon; In large flange plate end, oil pump filler opening, oil pump return opening, oil pump oil outlet A and oil pump oil outlet B are set.Large flange plate inner chamber also arranges pump oil one-way valve A and pump oil one-way valve B.Described oil pump filler opening is connected the oil inlet and outlet A of two-way crescent gear pump with triplate line by pump oil one-way valve A; The oil pump filler opening also is connected the oil inlet and outlet B of two-way crescent gear pump with triplate line by pump oil one-way valve B; The oil inlet and outlet A of oil pump is connected by the filler opening of pipeline with filter A; The oil inlet and outlet B of oil pump is connected with the filler opening of filter B by pipeline.The oil outlet of described filter A and filter B is connected to the oil pump return opening by pipeline, and described oil pump return opening enters speed change assembly casing by pipeline.
Described filter A and filter B are arranged on outside machine.The filter one-way valve is installed respectively on the in-line of filter A and filter B, and described filter one-way valve stops the lubricant oil after filter to be back to the oil pump filler opening.
The invention has the beneficial effects as follows:
1, adopt two-way crescent gear pump, gear pump has two oil outlets, connect respectively two filters, control the break-make of itself and filler opening by one-way valve, when making the positive and negative work of motor, two filters are continual to be filtered lubricant oil, good filtration effect, significantly improve the working life of speed reducer, effectively reduces the initial failure feedback rates.
2, two-way crescent gear pump and speed reducer become one, and enough become the oil circuit of a sealing, make speed reducer when using, and realize that inner chamber lubricant oil is filtered.The speed reducer volume does not increase substantially, and result is compact, and making, easy for installation, with low cost is convenient to promote the use of.
3, need not to regularly replace lubricant oil, only need the periodic cleaning filter core or more renew cartridge get final product, the reduction user cost.
Description of drawings
The present invention is further described with enforcement with reference to the accompanying drawings for the below.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is asphalt principle figure of the present invention.
Fig. 4 is the oil circuit schematic diagram of motor when turning clockwise.
Fig. 5 is the oil circuit schematic diagram of motor when being rotated counterclockwise.
in figure: 1, oil hydraulic motor, 2, two-way crescent gear pump, 2-1, small gear, 2-2, pump cover, 2-3, internal gear, 2-4, the pump housing, 3, the hole back-up ring, 4, large flange plate, 5, adjust packing ring, 6, outside framework oil seal, 7, large bearing, 8, bearing support, 9, brake assemblies, 9-1, brake strip, 10, the braking coupling shaft, 11, the speed change assembly, 12, bull gear, 13, the oil pump filler opening, 14, pump oil one-way valve A, 15, pump oil one-way valve B, 16, oil pump oil outlet A, 17, oil pump oil outlet B, 18, the oil pump return opening, 19, filter A, 20, filter B, 21, the filter one-way valve.
Embodiment
As shown in Figure 1 and Figure 2: the lubricant oil inner chamber inherent filtration formula speed reducer that uses on a kind of mobile crane hoisting winding, it comprises: large flange plate 4, brake assemblies 9, braking connection 10, speed change assembly 11 and oil hydraulic motor 1.Described brake assemblies 9 is self-coupling type face contact friction sheet arrestment mechanism, and the moving plate of brake strip 9-1 is connected with braking coupling shaft 10 by spline, and the still of brake strip 9-1 is connected with large flange plate 4.Described speed change assembly 11 is planet-gear speed reducer, and the output terminal of star gear reduction unit is bull gear 12, and described bull gear 12 1 ends connect the hoisting winding reel, and bull gear 12 the other ends are bolted on bearing support 8.Described bearing support 8 is connected with large flange plate 4 with the bearing of being connected 7 by outside framework oil seal 6.Braking coupling shaft 10 1 ends are connected by the output shaft of internal spline with oil hydraulic motor 1, and braking coupling shaft 10 the other ends are connected with the central gear of planetary gear reducing mechanism by internal spline.It is characterized in that: two-way crescent gear pump 2 is set in the endoporus of described large flange plate 4 ends; Described two-way crescent gear pump 2 is comprised of small gear 2-1, pump cover 2-2, internal gear 2-3 and pump housing 2-4.Described pump cover 2-2 and pump housing 2-4 two ends are fixed on large flange plate 4 with back-up ring 3 with the hole respectively.Described small gear 2-1 is connected and obtains power with braking coupling shaft 10 by internal spline.Described two-way crescent gear pump 2 has oil inlet and outlet A and oil inlet and outlet B, along with the variation of gear pump positive and reverse steering,
As Fig. 1, Fig. 2, shown in Figure 3: large flange plate 4 inner chambers also arrange pump oil one-way valve A14 and pump oil one-way valve B15.Described oil pump filler opening 13 is connected the oil inlet and outlet A of two-way crescent gear pump 2 with triplate line by pump oil one-way valve A14; Oil pump filler opening 13 also is connected the oil inlet and outlet B of two-way crescent gear pump 2 with triplate line by pump oil one-way valve B15; The oil inlet and outlet A of oil pump is connected by the filler opening of pipeline with filter A19; The oil inlet and outlet B of oil pump is connected by the filler opening of pipeline with filter B 20.The oil outlet of described filter A19 and filter B 20 is connected to oil pump return opening 18 by pipeline, and described oil pump return opening 18 enters speed change assembly 11 casings by pipeline.
Described filter A19 and filter B 20 are arranged on outside machine.Filter one-way valve 21 is installed respectively on the in-line of filter A19 and filter B 20, and described filter one-way valve 21 stops the lubricant oil after filter to be back to oil pump filler opening 13.
As Fig. 1, Fig. 2, shown in Figure 3: in using process, when oil hydraulic motor 1 rotation, motor drive shaft drives 10 rotations of braking coupling shaft, the central gear of being connected with the speed change assembly due to the small gear 2-1 of two-way crescent gear pump 2 all is connected with braking coupling shaft 14 by spline, and oil hydraulic motor 1 drives two-way crescent gear pump 2 and 1 run-in synchronism of speed change assembly.
As shown in Figure 4: when oil hydraulic motor 1 clockwise rotated, two-way crescent gear pump 2 is rotation in the direction of the clock also.Oil inlet and outlet A one side of gear pump is oil sucting cavity, and this place's fluid forms negative pressure, and pump oil one-way valve A14 is opened, and the filtration one-way valve 21 in filter A19 is closed, and makes fluid enter oil sucting cavity; Oil inlet and outlet B15 one side is pumping cavity, and pump oil one-way valve B15 closes under the effect of pressure oil, and the oil circuit between filler opening 13 and oil inlet and outlet B is cut off, and fluid is flowed out from oil inlet and outlet B, returns the speed reducer inner chamber through filter B 20 and return opening.
As shown in Figure 5: when oil hydraulic motor 1 inhour rotation, two-way crescent gear pump 2 is rotation counter clockwise also.Oil inlet and outlet B one side of gear pump is oil sucting cavity, and this place's fluid forms negative pressure, and pump oil one-way valve B15 is opened, and the filtration one-way valve 21 in filter B 20 is closed, and makes fluid enter oil sucting cavity; Oil inlet and outlet A14 one side is pumping cavity, and pump oil one-way valve A14 closes under the effect of pressure oil, and the oil circuit between filler opening 13 and oil inlet and outlet A is cut off, and fluid is flowed out from oil inlet and outlet A, returns the speed reducer inner chamber through filter A19 and return opening.
During oil hydraulic motor 1 positive and negative work, two filters are continual to be filtered lubricant oil, good filtration effect, and significantly improve the working life of speed reducer, effectively reduces the initial failure feedback rates.
Claims (3)
1. the lubricant oil inner chamber inherent filtration formula speed reducer that uses on a mobile crane hoisting winding, it comprises: large flange plate (4), brake assemblies (9), braking coupling shaft (10), speed change assembly (11) and oil hydraulic motor (1); Described brake assemblies (9) is self-coupling type face contact friction sheet arrestment mechanism, and the moving plate of brake strip (9-1) is connected with braking coupling shaft (10) by spline, and the still of brake strip (9-1) is connected with large flange plate (4); Described speed change assembly (11) is planet-gear speed reducer, the output terminal of star gear reduction unit is bull gear (12), described bull gear (12) one ends connect the hoisting winding reel, and bull gear (12) the other end is bolted on bearing support (8); Described bearing support (8) is connected with large flange plate (4) with the bearing of being connected (7) by outside framework oil seal (6); Braking coupling shaft (10) one ends are connected by the output shaft of internal spline with oil hydraulic motor (1), and braking coupling shaft (10) the other end is connected with the central gear of planetary gear reducing mechanism by internal spline; It is characterized in that: two-way crescent gear pump (2) is set in the endoporus of described large flange plate (4) end; Described two-way crescent gear pump (2) is comprised of small gear (2-1), pump cover (2-2), internal gear (2-3) and the pump housing (2-4); Described pump cover (2-2) and the pump housing (2-4) two ends are fixed on large flange plate (4) with back-up ring (3) with the hole respectively; Described small gear (2-1) is connected and obtains power with braking coupling shaft (10) by internal spline; Described two-way crescent gear pump (2) has oil inlet and outlet A and oil inlet and outlet B, and along with the variation of gear pump positive and reverse steering, oil inlet and outlet A and B function change thereupon; In large flange plate (4) end, oil pump filler opening (13), oil pump return opening (18), oil pump oil outlet A(16 are set) and oil pump oil outlet B(17); Large flange plate (4) inner chamber also arranges pump oil one-way valve A(14) and pump oil one-way valve B(15); Described oil pump filler opening (13) is by pump oil one-way valve A(14) be connected the oil inlet and outlet A of two-way crescent gear pump (2) with triplate line; Oil pump filler opening (13) is also by pump oil one-way valve B(15) be connected the oil inlet and outlet B of two-way crescent gear pump (2) with triplate line; The oil inlet and outlet A of oil pump is by pipeline and filter A(19) filler opening be connected; The oil inlet and outlet B of oil pump is connected by the filler opening of pipeline with filter B (20); Described filter A(19) and the oil outlet of filter B (20) be connected to oil pump return opening (18) by pipeline, described oil pump return opening (18) enters speed change assembly (11) casing by pipeline.
2. the lubricant oil inner chamber inherent filtration formula speed reducer that uses on mobile crane hoisting winding according to claim 1 is characterized in that: described filter A(19) and filter B (20) be arranged on outside machine.
3. the lubricant oil inner chamber inherent filtration formula speed reducer that uses on mobile crane hoisting winding according to claim 1, described filter A(19) and filter one-way valve (21) is installed respectively on the in-line of filter B (20) it is characterized in that:, described filter one-way valve (21) stops the lubricant oil after filter to be back to oil pump filler opening (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040881.5A CN103115139B (en) | 2013-02-01 | 2013-02-01 | Lubricating oil inner cavity self-filtering speed reducer used on lorry-mounted crane lifting hoist |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040881.5A CN103115139B (en) | 2013-02-01 | 2013-02-01 | Lubricating oil inner cavity self-filtering speed reducer used on lorry-mounted crane lifting hoist |
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| CN103115139A true CN103115139A (en) | 2013-05-22 |
| CN103115139B CN103115139B (en) | 2015-07-15 |
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| CN201310040881.5A Expired - Fee Related CN103115139B (en) | 2013-02-01 | 2013-02-01 | Lubricating oil inner cavity self-filtering speed reducer used on lorry-mounted crane lifting hoist |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246471A (en) * | 2016-12-13 | 2017-10-13 | 惠阳航空螺旋桨有限责任公司 | Lubricating arrangement for blower fan reduction box |
| CN109807929A (en) * | 2017-11-21 | 2019-05-28 | 沈阳新松机器人自动化股份有限公司 | A kind of actuating cam formula lubrication self-cleaning mechanism |
| CN114776793A (en) * | 2022-03-14 | 2022-07-22 | 无锡天昀新能源科技有限公司 | High radial load rotary speed reducer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101016839A (en) * | 2007-03-07 | 2007-08-15 | 煤炭科学研究总院太原分院 | Shortwall mining forklift in underground mine |
| DE102006030791A1 (en) * | 2006-06-30 | 2008-01-03 | Zf Friedrichshafen Ag | Hydrodynamic retarder |
| CN201961935U (en) * | 2011-01-07 | 2011-09-07 | 台州长城机械制造有限公司 | Speed reducer for traction machine |
| CN203146783U (en) * | 2013-02-01 | 2013-08-21 | 徐州科源液压股份有限公司 | Self-filtration type decelerator for lubricating oil cavity for hoister of lorry-mounted crane |
-
2013
- 2013-02-01 CN CN201310040881.5A patent/CN103115139B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006030791A1 (en) * | 2006-06-30 | 2008-01-03 | Zf Friedrichshafen Ag | Hydrodynamic retarder |
| CN101016839A (en) * | 2007-03-07 | 2007-08-15 | 煤炭科学研究总院太原分院 | Shortwall mining forklift in underground mine |
| CN201961935U (en) * | 2011-01-07 | 2011-09-07 | 台州长城机械制造有限公司 | Speed reducer for traction machine |
| CN203146783U (en) * | 2013-02-01 | 2013-08-21 | 徐州科源液压股份有限公司 | Self-filtration type decelerator for lubricating oil cavity for hoister of lorry-mounted crane |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246471A (en) * | 2016-12-13 | 2017-10-13 | 惠阳航空螺旋桨有限责任公司 | Lubricating arrangement for blower fan reduction box |
| CN109807929A (en) * | 2017-11-21 | 2019-05-28 | 沈阳新松机器人自动化股份有限公司 | A kind of actuating cam formula lubrication self-cleaning mechanism |
| CN109807929B (en) * | 2017-11-21 | 2021-09-17 | 沈阳新松机器人自动化股份有限公司 | Active cam type lubricating self-cleaning mechanism |
| CN114776793A (en) * | 2022-03-14 | 2022-07-22 | 无锡天昀新能源科技有限公司 | High radial load rotary speed reducer |
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| CN103115139B (en) | 2015-07-15 |
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