CN1273752C - Friction assistant self-lubricating structure of crank, link lever, retainer ring and bearing bushing - Google Patents
Friction assistant self-lubricating structure of crank, link lever, retainer ring and bearing bushing Download PDFInfo
- Publication number
- CN1273752C CN1273752C CN 200410017491 CN200410017491A CN1273752C CN 1273752 C CN1273752 C CN 1273752C CN 200410017491 CN200410017491 CN 200410017491 CN 200410017491 A CN200410017491 A CN 200410017491A CN 1273752 C CN1273752 C CN 1273752C
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- Prior art keywords
- connecting rod
- self
- bearing
- bent axle
- lubricating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000002131 composite material Substances 0.000 claims abstract description 31
- 230000008093 supporting effect Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract 2
- 230000001050 lubricating effect Effects 0.000 description 6
- 238000009826 distribution Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The present invention relates to a self-lubricating structure of a crank shaft, a connecting rod, a snap ring and a friction pair of a bearing sleeve. The present invention comprises a casing (1), a end cover (11), a crank shaft (9), plungers (3), a plunger cover and a connecting rod (5), wherein a plurality of plunger holes which are matched with the plungers, are arranged on the casing in the radial direction; the crank shaft is supported in left and right end bearings (17); the bearing sleeve (12) is also arranged at the middle part of the crank shaft (9); the connecting rod (5) is connected with the crank shaft with the bearing sleeve through the left and right snap rings (6); a semispherical inner hole is arranged in each of the plungers; the semispherical inner hole is connected with the connecting rod with a supporting face; a bearing (13) of self-lubricating composite material is arranged between the bearing sleeve (12) and the crank shaft (9) which is connected with the bearing sleeve (12); a bearing (61) of self-lubricating composite material is arranged between the inner ring face of each of the snap rings and the outer column face of the connecting rod; a self-lubricating composite material pad is arranged between the supporting face of the connecting rod and the outer cylindrical face of the bearing sleeve which is matched with the connecting rod. The present invention has the advantages of favorable wear resistant performance, favorable heat-resisting performance, anti-friction performance and friction-preventing performance; besides, good lubricated conditions can be kept for a long time; therefore, the mechanical efficiency is improved; the present invention has high operational reliability and long service life; because the friction face is made of polymeric composite materials, the friction face has good shock absorbing effect; in addition, the operation noise and vibration of moving parts of the present invention can be greatly lowered, and, a.
Description
Technical field
The present invention relates to a kind of lubricating structure of friction pair.Particularly relate to a kind of bent axle, connecting rod, self-lubricating structure of snap ring and bearing case friction pair that is widely used in the oil hydraulic motor in all kinds of mechanical fields.
Background technique
Existing crankshaft connecting rod type oil hydraulic motor mostly as shown in Figure 3 also be by the applicant invention in Chinese patent specification 97212342.3 disclosed a kind of " new type crank linkage rod type hydraulic motor ", it is by housing 1, cylinder cap 3, end cap 9, bent axle 14, roller 16, bearing housing 15, compositions such as plunger 5, connecting rod 7; The housing 1 that has a hydraulic pressure runner 2 is fixing with cylinder cap 3 and end cap 9 respectively, offers short on cylinder cap and near the runner 4 of end face, and is provided with plastic hoop 8 between plunger 5 and connecting rod 7, and has an aperture 6 and plunger case hole to pass to the lubrication and seal condition of improving mutually; Bent axle 14 is bearing in the rolling bearing 17 of two ends, returning apparatus has the bearing housing of making periodic wobble 15 of a plurality of roller 16 supportings on the described bent axle, and device has plunger that has damping hole 10 5 and the connecting rod 7 that communicates with the hydraulic pressure runner 2 of housing 1 in the described plunger case.Described connecting rod is connected by snap ring 11 with bearing housing.
Above-mentioned " new type crank linkage rod type hydraulic motor " is because of the design of two end rolling bearings 17 of having adopted a plurality of rollers 16, narrow meshed plastic hoop 8 and supporting crankshaft etc., make its structure comparatively complicated, and the volume that causes oil hydraulic motor and weight greatly, manufacture cost is high; In addition, its hydraulic leak amount of existing crankshaft connecting rod type oil hydraulic motor of said structure noise big, operation is also higher, and when the oil hydraulic motor discharge capacity was big, functional reliability between bent axle 14 and the roller 16 and life problems were difficult to solve simultaneously.
Summary of the invention
Purpose of the present invention is exactly in order to overcome above-mentioned deficiency of the prior art, and a kind of transmission efficiency height, noise are low, simple in structure, be convenient to manufacturing, volume is little, in light weight and manufacture cost is lower oil hydraulic motor bent axle, connecting rod, self-lubricating structure of snap ring and bearing case friction pair are provided.
The objective of the invention is by a kind of bent axle with following structure is provided, connecting rod, the technological scheme of self-lubricating structure of snap ring and bearing case friction pair realizes, it comprises housing, end cap, bent axle, plunger and cover of plunger and connecting rod, the plunger hole that has a plurality of and described plunger of radial arrangement to match on the described housing, described crankshaft support about in two step bearings, the middle part returning apparatus of described bent axle has bearing housing, described connecting rod by about two snap rings be connected with the bent axle of tape spool bearing sleeve, described plunger is provided with a hemispherical endoporus, described hemispherical endoporus is connected described end cap with the connecting rod of band supporting surface, cover of plunger, fixedly connected with housing.
Between the coupled bent axle of described bearing housing a self-lubricating composite bearing is set; Described self-lubricating composite bearing fixing is connected in the axis hole of described bearing housing.One self-lubricating composite bearing is set between the inner ring surface of described snap ring and the outer cylinder of described connecting rod; Described self-lubricating composite bearing fixing is connected on the inner ring surface of snap ring.One self-lubricating composite bearing is set between the external cylindrical surface of the bearing housing that described link supporting face matches with it; Described self-lubricating composite bearing fixing is connected on the ring supporting surface of described connecting rod.
The present invention be adopt between the coupled bent axle of the bearing housing of oil hydraulic motor, three self-lubricating composites between the outer cylinder of the inner ring surface of snap ring and connecting rod, between the external cylindrical surface of the bearing housing that matches with it of link supporting face are as the lubricating structure of the friction pair of friction media.Described self-lubricating composite is a polymer composite, have good wear-resisting, heat-resisting and anti-wear and wear-resistant performance, it can reduce the fracture ratio of lubricating film between the above-mentioned selflubricating friction pair working surface, when it makes slide relative, can stick to the chemical molecular of described selflubricating polymer composite on the working surface of relative movement, form a kind of lubricating film effect, reduce surface friction drag, but also have the shock-absorbing effect, thereby make that being close to selflubricating friction pair working surface can keep good lubricating property and wear-resisting property for a long time when bent axle runs up.
Control a plurality of plungers radially that the orderly promotion of high-pressure liquid medium is distributed in housing by oil distribution casing, plunger is pumped be transformed to rotatablely moving of bent axle by connecting rod, thus outputting power.
Oil hydraulic motor of the present invention has adopted end face to join the patented technology of oil simultaneously, and oil distribution casing is driven by bent axle and rotation synchronously.In addition, adopt the sealing of plastic column plug ring between described plunger and the plunger hole.
Compared with prior art, the invention has the advantages that: 1. have good wear-resisting, heat-resisting and anti-wear and wear-resistant performance, and can keep good lubricating condition for a long time, thereby improved mechanical efficiency; 2. have higher operational reliability and operating life; 3. because rubbing surface is a polymer composite, has good shock attenuation result, thereby can reduce the operation noise and the vibration of its moving element significantly; 4. because snap ring has enough rigidity and intensity, and connecting rod is pressed on the bearing housing more tightly, thereby can also pull out connecting rod to plunger to the axle center of motor direction simultaneously by snap ring, so the present invention can also make oil hydraulic motor can have the characteristic of making the pump operating mode.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is a kind of prior art constructions schematic representation;
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Fig. 1 and Fig. 2 show a mode of execution of bent axle of the present invention, connecting rod, self-lubricating structure of snap ring and bearing case friction pair.It comprises housing 1, end cap 11, bent axle 9, plunger 3 and connecting rod 5; The plunger hole that has a plurality of and described plunger of radial arrangement to match on the described housing, described bent axle 9 is bearing in two step bearings, returning apparatus has bearing housing 12 on the described bent axle 9, described connecting rod 5 by about two snap rings 6 be connected with the bent axle 9 of tape spool bearing sleeve 12; Described plunger 3 is provided with a hemispherical endoporus, and described hemispherical endoporus is connected with the connecting rod 5 of band supporting surface 51, and described end cap 11, cover of plunger 31 are fixedlyed connected with housing 1.
Between the coupled bent axle 9 of described bearing housing 12 a self-lubricating composite bearing 13 is set; The external diameter of described self-lubricating composite bearing 13 is fixedly installed in the axis hole of bearing housing 12; Described self-lubricating composite bearing 13 cross-sectional configurations have the radial support face of a substantially horizontal, and the external diameter of described radial support face and described bent axle 9 forms a selflubricating friction pair.
One self-lubricating composite bearing 61 is set between the outer cylinder of the inner ring surface of described snap ring 6 and described connecting rod 5, and described self-lubricating composite bearing 61 is fixedly installed on the inner ring surface of snap ring 6.One self-lubricating composite bearing 4 is set between the external cylindrical surface of the bearing housing 12 that described link supporting face matches with it.Described self-lubricating composite pad 4 is fixedly connected on the ring supporting surface of described connecting rod 5.
The left end of described bent axle 9 connects an oil distribution casing 15 and does rotation synchronously with bent axle 9.
The present invention adopts the hydraulic motor structure of a plurality of self-lubricating composites as friction media.Control five plungers radially that the orderly promotion of high-pressure and hydraulics oil is distributed in housing by oil distribution casing 15, plunger is pumped be transformed to rotatablely moving of bent axle by connecting rod, thus outputting power.
The self-lubricating composite that bent axle of the present invention, connecting rod, self-lubricating structure of snap ring and bearing case friction pair adopt has Good wear-resisting, heat-resisting (heat resisting temperature is greater than 200 ℃) and anti-wear and wear-resistant performance, but also have shock-absorbing functions, Reduce the noise function of hydraulic motor operation, thereby so that be close to self-lubricating friction pair working surface and turn round at crankshaft high-speed The time can keep for a long time good greasy property and anti-wear performance; Even the moment that the present invention starts is in above-mentioned self-lubricating friction Non lubricant oil on the contact plane between the subtask surface also can be guaranteed its normal operation.
Be that bent axle, connecting rod, snap ring and bearing holder (housing, cover) pair of friction components are to use macromolecule as most important moving component in the hydraulic motor Composite is made, thereby has good shock attenuation result, but operation noise and the vibration of decrease moving component, Have higher operational reliability and working life.
Claims (4)
1. bent axle, connecting rod, self-lubricating structure of snap ring and bearing case friction pair, comprise housing (1), end cap (11), bent axle (9), plunger (3) and cover of plunger (31) and connecting rod (5), the plunger hole that has a plurality of and described plunger of radial arrangement to match on the described housing, about described bent axle (9) is bearing in two step bearings (17), the middle part returning apparatus of described bent axle (9) has bearing housing (12), two snap rings (6) were connected with the bent axle (9) of tape spool bearing sleeve (12) about described connecting rod (5) passed through, described plunger (3) is provided with a hemispherical endoporus, described hemispherical endoporus is connected with the connecting rod (5) of band supporting surface, described end cap (11), cover of plunger (31) is fixedlyed connected with housing (1), it is characterized in that: between the coupled bent axle (9) of described bearing housing (12) a self-lubricating composite bearing (13) is set; One self-lubricating composite bearing (61) is set between the inner ring surface of described snap ring (6) and the outer cylinder of described connecting rod; One self-lubricating composite bearing (4) is set between the external cylindrical surface of the bearing housing (12) that described link supporting face matches with it.
2. bent axle according to claim 1, connecting rod, self-lubricating structure of snap ring and bearing case friction pair is characterized in that: described self-lubricating composite bearing (13) is fixedly connected in the axis hole of described bearing housing (12).
3. bent axle according to claim 1, connecting rod, self-lubricating structure of snap ring and bearing case friction pair is characterized in that: described self-lubricating composite bearing (61) is fixedly connected on the inner ring surface of snap ring (6).
4. bent axle according to claim 1, connecting rod, self-lubricating structure of snap ring and bearing case friction pair is characterized in that: described self-lubricating composite bearing (4) is fixedly connected on the ring supporting surface of described connecting rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410017491 CN1273752C (en) | 2004-04-06 | 2004-04-06 | Friction assistant self-lubricating structure of crank, link lever, retainer ring and bearing bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410017491 CN1273752C (en) | 2004-04-06 | 2004-04-06 | Friction assistant self-lubricating structure of crank, link lever, retainer ring and bearing bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1563731A CN1563731A (en) | 2005-01-12 |
| CN1273752C true CN1273752C (en) | 2006-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410017491 Expired - Lifetime CN1273752C (en) | 2004-04-06 | 2004-04-06 | Friction assistant self-lubricating structure of crank, link lever, retainer ring and bearing bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1273752C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445129B (en) * | 2015-11-30 | 2018-05-29 | 芜湖普威技研有限公司 | The detection device of automobile shaft lever |
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2004
- 2004-04-06 CN CN 200410017491 patent/CN1273752C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1563731A (en) | 2005-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo heaglund hydraulic transmission Co., Ltd. Assignor: Hu Shixuan Contract fulfillment period: 2008.7.3 to 2013.12.31 Contract record no.: 2008330000182 Denomination of invention: Friction assistant self-lubricating structure of crank, link lever, retainer ring and bearing bushing Granted publication date: 20060906 License type: Exclusive license Record date: 20080815 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.7.3 TO 2013.12.31 Name of requester: NINGBO HAGGLUNDS HYDRAULIC TRANSMISSION CO., LTD. Effective date: 20080815 |
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| ASS | Succession or assignment of patent right |
Owner name: NINGBO DAGANG INI HYDRAULIC CO., LTD. Free format text: FORMER OWNER: HU SHIXUAN Effective date: 20110526 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 315200 ROOM 302, 15-2/F, SHUNLONG ROAD, ZHENHAI DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE TO: 315806 NO. 288, BATOU WEST ROAD, BEILUN DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110526 Address after: 315806 No. 288 west head dam, Beilun District, Zhejiang, Ningbo Patentee after: NINGBO DAGANG YINING HYDRAULIC Co.,Ltd. Address before: Zhenhai District 315200 in Zhejiang province Ningbo City Shun Road Building 15-2 Room 302 Patentee before: Hu Shixuan |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315806 No. 288 west head dam, Beilun District, Zhejiang, Ningbo Patentee after: INI HYDRAULIC Co.,Ltd. Address before: 315806 No. 288 west head dam, Beilun District, Zhejiang, Ningbo Patentee before: NINGBO DAGANG YINING HYDRAULIC Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20060906 |
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| CX01 | Expiry of patent term |