CN2336123Y - End face compensation oil distribution crank connecting link type hydraulic motor - Google Patents
End face compensation oil distribution crank connecting link type hydraulic motor Download PDFInfo
- Publication number
- CN2336123Y CN2336123Y CN 98224223 CN98224223U CN2336123Y CN 2336123 Y CN2336123 Y CN 2336123Y CN 98224223 CN98224223 CN 98224223 CN 98224223 U CN98224223 U CN 98224223U CN 2336123 Y CN2336123 Y CN 2336123Y
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- CN
- China
- Prior art keywords
- oil
- connecting rod
- oil distribution
- circular groove
- housing
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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 - Fee Related
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Abstract
The utility model relates to an end surface compensation oil distribution crank connecting link type motor, comprising a through oil pan, an oil distribution pan, a shell body, a plunger piston which is a connecting link assembly, a crank assembly and a bearing of the crank assembly. The plunger piston, the crank assembly and the bearing are arranged in the shell body. The oil distribution pan is an integral circular metal piece, and the connection surface of the matching oil pan and the shell body is provided with a connection position blind hole. The both sides of the connection position blind hole is symmetrically provided with two annular grooves A, B. Three through oil cavities in the annular groove A are communicated with an eccentric through oil hole A of the other end surface of the oil distribution pan, and three through oil cavities in the annular groove B are communicated with three through oil holes B on the circumference of the oil distribution pan. The end surface oil distribution technology of the utility model makes an oil-entering passage and an oil return passage thoroughly separated, and the volumetric efficiency can enhance to 98 percents.
Description
The utility model relates to a kind of star oil hydraulic motor, and particularly a kind of end-face compensate is joined oily crankshaft connecting rod type motor.
The working principle of existing crankshaft connecting rod type oil hydraulic motor is: radially on the circumference of housing evenly be provided with five (or seven) cylinders, plunger in the cylinder is connected with connection rod sphere by ball pivot, cylndrical surface, connecting rod bottom contacts with the eccentric wheel of bent axle, bent axle has the tapered roller bearing supporting, be fixed in housing and the capping, one end of bent axle links to each other with oil distributing shaft by cross axle, the other end be driven load elements and link to each other.When pressure oil enters oil distributing shaft, housing in plunger case by logical food tray hole, the action of hydraulic force that pressure oil produces is in plunger head, and is delivered on the eccentric wheel by connecting rod.Effect is pointed to the eccentric wheel center with the power on the eccentric wheel along the connecting rod center line, this active force resolves into normal force (line of action of force overlaps with crankshaft rotating center and eccentric wheel circle center line connecting) and tangential force, wherein tangential force produces moment of torsion to the rotating center of bent axle, and bent axle is rotated around the crankshaft rotating center.Simultaneously, the rotation of bent axle drives oil distributing shaft run-in synchronism by cross axle, oil suction chamber and oil-discharging cavity be connecting with each plunger case successively respectively, thereby guarantee that bent axle rotates continuously, the flow that changes incoming pressure oil just can change the output speed of motor, if, then can realize the counter-rotating of motor with the advancing of motor, oil drain out exchange.Above-mentioned this oil hydraulic motor exists such defective: what 1. oil distributing shaft adopted is radially to join oil, exists radial clearance, and oil-feed and oil return directly communicate in the gap, let out increase in causing, and volumetric efficiency descends, and oil distributing shaft hydraulic coupling imbalance easily causes stuck; 2. cylndrical surface, connecting rod bottom directly contacts with the eccentric wheel of bent axle, for sliding friction, influences mechanical efficiency and cranking performance rating between the two; 3. the housing of motor and plunger bushing are structure as a whole, thereby cylinder inner bore processing do not reach very high precision, cause plunger bushing good inadequately with cooperating of plunger, and sliding friction is bigger, and stability is not good during low speed.
The purpose of this utility model provides a kind of end-face compensate that adopts to join oily crankshaft connecting rod type oil hydraulic motor with regard to being at above-mentioned prior art present situation.
Another purpose of the present utility model is to provide the crankshaft connecting rod type that a kind of low speed is stablized, mechanical efficiency is higher oil hydraulic motor.
The purpose of this utility model is achieved in that end-face compensate joins oily crankshaft connecting rod type motor and comprise logical food tray, oil distribution casing, plunger one link assembly in housing and the housing, crankshaft group and bearing thereof, described oil distribution casing is a unitary circular metalwork, it has with the junction surface center of housing and is connected the location blind hole, the location blind hole inwardly has the connection kidney slot again, the kidney slot bilateral symmetry have two circular groove A, B, at circular groove A, three logical oil pockets are respectively arranged in the B, wherein the logical oil pocket A in the circular groove A communicates with the eccentric oil through A of oil distribution casing other end, also have an eccentric circular groove on the end face being connected with housing, one of this off-centre circular groove and circular groove A connect, one is distributed in the circular groove B outside, the logical oil pocket B in another circular groove B respectively be distributed in the oil distribution casing circumference on three oil through B communicate; Have the circular groove that embeds seal ring in described eccentric oil through A periphery.
For reducing internal friction, improving mechanical efficiency, can between plunger one connecting rod and crankshaft eccentric wheel, set up one group of rolling bearing forming by roller and bearing housing.
Compared with prior art, because the utility model adopted end face to join oil tech, oil inlet passage and drainback passage are thoroughly separated with seal ring, volumetric efficiency can be increased to 98%, simultaneously gap is radially also no longer included requirement, make make much easy to process; The rolling bearing of setting up between plunger and crankshaft eccentric wheel then makes mechanical efficiency, cranking performance rating and the low-speed stability of motor all be significantly improved.
Description of drawings.
Fig. 1 is total assembling structure cross-sectional schematic of the present utility model.
Fig. 2 is the structure cross-sectional schematic of oil distribution casing among Fig. 1.
Fig. 3 is the right elevation of Fig. 2.
Fig. 4 is the left view of Fig. 1.
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, end-face compensate is joined oily crankshaft connecting rod type motor and is comprised logical food tray (1), oil distribution casing (2), plunger (7) one connecting rod (8) assemblies in housing (5) and the housing (5), crankshaft group (11) and bearing (12) thereof, radially on the circumference of housing (5) evenly be provided with five (or seven) cylinders, plunger in the cylinder (7) is connected with connecting rod (8) bulb by ball pivot, cylndrical surface, connecting rod (8) bottom contacts with the eccentric wheel of bent axle (11), bent axle (11) is supported by tapered roller bearing (12), be fixed in housing (5) and the capping (13), one end of bent axle (11) links to each other with oil distribution casing (2) by cross axle (4), the other end be driven load elements and link to each other.(5 enter into plunger case, and the action of hydraulic force that pressure oil produces is in plunger (7) top, and are delivered on the eccentric wheel by connecting rod (8) by logical food tray (1) aperture oil distribution casing (2), housing when pressure oil.
Shown in Fig. 2 to 4, described oil distribution casing (2) is a unitary circular metalwork, and it is connected with bent axle (11) by cross axle (4), and one end is connected by positioning ring (3) with housing (5), and the other end is relative with logical food tray (1), as shown in Figure 1; Wherein have the location blind hole (23) that is connected positioning ring (3) with the junction surface center of housing (5), location blind hole (23) inwardly has the kidney slot (24) that is used to connect cross axle (4) again, kidney slot (24) bilateral symmetry have two circular grooves (21A), (21B), at circular groove (21A), three logical oil pockets (22A) are respectively arranged (21B), (22B), wherein the logical oil pocket (22A) in the circular groove (21A) communicates with the eccentric oil through (26A) of oil distribution casing other end, also have an eccentric circular groove (25) on the end face being connected with housing, (25) one of this off-centre circular grooves and circular groove (21A) are connected, one is distributed in circular groove (21B) outside, logical oil pocket (22B) in another circular groove (21B) respectively be distributed in the oil distribution casing circumference on three oil throughs (26B) communicate, have the circular groove (27) that embeds seal ring in described eccentric oil through (26A) periphery, and leave a location shrinkage pool (28) in the inboard of this circular groove (27), be used for cooperating, play positioning action with projection on the seal ring.
For reducing internal friction, improving mechanical efficiency, can between each plunger (7) one connecting rod (8) and bent axle (11) eccentric wheel, set up one group of rolling bearing forming by roller (1) and bearing housing (9), as shown in Figure 1.This Bearing Installation is convenient, compact structure, axial restraint are reliable, rotate nature around eccentric wheel, making that Sliding velocity directly contacts Sliding velocity with eccentric wheel than original connecting rod (8) between connecting rod (8) bottom and the bearing housing (9) greatly reduces, thereby mechanical efficiency and cranking performance rating are improved.Connecting rod (8) bottom, plunger (7) ball-and-socket have adopted the hydrostatic support design, and mechanical efficiency, cranking performance rating and the low-speed stability of motor are significantly improved.
A better design proposal is with housing (5) and plunger bushing (6) split design, use high-strength screw fastening when mounted, as shown in Figure 1, the endoporus precision that improves plunger bushing (6) cylinder body is come true, by the grinding cylinder inner bore, make plunger bushing (6) and cooperating of plunger (7) more become rationally, thereby reduce sliding friction, eliminated low speed jerking motion, low-speed stability is significantly improved.
Claims (7)
1. an end-face compensate is joined oily crankshaft connecting rod type motor, comprise logical food tray (1), oil distribution casing (2), plunger (7) one connecting rod (8) assemblies in housing (5) and the housing, crankshaft group (11) and bearing (12) thereof, it is characterized in that described oil distribution casing (2) is a unitary circular metalwork, its junction surface center with housing (5) has and is connected location blind hole (23), location blind hole (23) inwardly has again and is used to connect kidney slot (24), the kidney slot bilateral symmetry have two circular grooves (21A), (21B), at circular groove (21A), three logical oil pockets (22A) are respectively arranged (21B), (22B), wherein the logical oil pocket (22A) in the circular groove (21A) communicates with the eccentric oil through (26A) of oil distribution casing (2) other end, the interior logical oil pocket (22B) of another circular groove (21B) respectively be distributed in the oil distribution casing circumference on three oil throughs (26B) communicate.
2. end-face compensate as claimed in claim 1 is joined oily crankshaft connecting rod type motor, it is characterized in that described oil distribution casing (2) also has an eccentric circular groove (25) being connected with housing (5) on the end face, (25) one of this off-centre circular grooves and circular groove (21A) are connected, and one is distributed in circular groove (21B) outside.
3. end-face compensate as claimed in claim 1 is joined oily crankshaft connecting rod type motor, it is characterized in that described oil distribution casing (2) has the circular groove (27) that embeds seal ring in described eccentric oil through (26A) periphery.
4. end-face compensate as claimed in claim 3 is joined oily crankshaft connecting rod type motor, it is characterized in that described oil distribution casing (2) leaves a location shrinkage pool (28) in the inboard of described circular groove (27), is used for cooperating with projection on the seal ring, plays positioning action.
5. join oily crankshaft connecting rod type motor as the described end-face compensate of claim 1 to 4, it is characterized in that between plunger (7) one connecting rods (8) and bent axle (11) eccentric wheel, to have additional one group of rolling bearing forming by roller (10) and bearing housing (9) described.
6. join oily crankshaft connecting rod type motor as the described end-face compensate of claim 1 to 4, it is characterized in that designing for split at described housing (5) and plunger bushing (6).
7. end-face compensate as claimed in claim 5 is joined oily crankshaft connecting rod type motor, it is characterized in that designing for split at described housing (5) and plunger bushing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98224223 CN2336123Y (en) | 1998-06-03 | 1998-06-03 | End face compensation oil distribution crank connecting link type hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98224223 CN2336123Y (en) | 1998-06-03 | 1998-06-03 | End face compensation oil distribution crank connecting link type hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2336123Y true CN2336123Y (en) | 1999-09-01 |
Family
ID=33975139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98224223 Expired - Fee Related CN2336123Y (en) | 1998-06-03 | 1998-06-03 | End face compensation oil distribution crank connecting link type hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2336123Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302207C (en) * | 2004-04-06 | 2007-02-28 | 胡世璇 | Hydraulic motor using self-lubricating composite material as friction assistant |
| CN100385125C (en) * | 2005-01-10 | 2008-04-30 | 胡世璇 | High accuracy hydraulic synchronous proportional diverting current collector |
| CN102808751A (en) * | 2012-06-13 | 2012-12-05 | 宝鸡航天动力泵业有限公司 | Oilfield high-flow reciprocating water injection pump |
| CN109026894A (en) * | 2018-09-05 | 2018-12-18 | 芜湖中意液压科技股份有限责任公司 | A kind of tilt cylinder motor of resistance to flat surface grinding flow component |
| CN116428101A (en) * | 2023-02-08 | 2023-07-14 | 宁波欧易液压有限公司 | Crankshaft connecting rod type hydraulic motor |
-
1998
- 1998-06-03 CN CN 98224223 patent/CN2336123Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302207C (en) * | 2004-04-06 | 2007-02-28 | 胡世璇 | Hydraulic motor using self-lubricating composite material as friction assistant |
| CN100385125C (en) * | 2005-01-10 | 2008-04-30 | 胡世璇 | High accuracy hydraulic synchronous proportional diverting current collector |
| CN102808751A (en) * | 2012-06-13 | 2012-12-05 | 宝鸡航天动力泵业有限公司 | Oilfield high-flow reciprocating water injection pump |
| CN109026894A (en) * | 2018-09-05 | 2018-12-18 | 芜湖中意液压科技股份有限责任公司 | A kind of tilt cylinder motor of resistance to flat surface grinding flow component |
| CN116428101A (en) * | 2023-02-08 | 2023-07-14 | 宁波欧易液压有限公司 | Crankshaft connecting rod type hydraulic motor |
| CN116428101B (en) * | 2023-02-08 | 2024-02-06 | 宁波欧易液压有限公司 | Crankshaft connecting rod type hydraulic motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |