CN2299181Y - Crankshaft link hydraulic motor - Google Patents
Crankshaft link hydraulic motor Download PDFInfo
- Publication number
- CN2299181Y CN2299181Y CN 97212342 CN97212342U CN2299181Y CN 2299181 Y CN2299181 Y CN 2299181Y CN 97212342 CN97212342 CN 97212342 CN 97212342 U CN97212342 U CN 97212342U CN 2299181 Y CN2299181 Y CN 2299181Y
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- plunger
- hydraulic motor
- housing
- runner
- Prior art date
- 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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- Hydraulic Motors (AREA)
Abstract
The utility model relates to a novel crankshaft and connecting rod type hydraulic motor which is composed of a casing, a cylinder cap, an end cap, a crankshaft, a pin roller, a bearing sleeve, a plunger, a connecting rod, etc. A short flow passage which is near to the end surface is arranged on the cylinder cap, and a lubrication sealing member is arranged between the plunger and the connecting rod for improving the lubrication and sealing conditions. Simultaneously, the connecting rod and the bearing sleeve adopt a connection structure for preventing from loosing, so the utility model has the advantages that the utility model conveniently removes sand cleanly, ensures the cleaning degree, improves the quality of products and reduces the manufacturing cost. Simultaneously, the reliable operation performance of the hydraulic motor is improved and the mechanical efficiency and the volumetric efficiency are enhanced.
Description
The utility model relates to the crankshaft connecting rod type oil hydraulic motor.
The crankshaft connecting rod type oil hydraulic motor is by crankshaft ﹠ connecting hydraulic pressure can be converted into the executive component of mechanical energy, is working machine output speed and moment of torsion.Crankshaft connecting rod type oil hydraulic motor of the prior art is referring to Fig. 1, Fig. 2, and its defective is as follows: 1. the runner of Fig. 1 is opened on housing, and hydraulic oil is directly fed by housing, and long tortuous because of the housing runner, so casting wasted product rate height, the sand removal difficulty causes manufacture cost to increase.The runner of Fig. 2 is opened on housing and plunger bushing, and hydraulic oil is fed through plunger bushing by housing, no cylinder cap, because of plunger bushing double as plunger case effect again,, increase other part of plunger bushing and just increased amount of finish so plunger bushing is indispensable part in addition, and technology is difficult, has increased manufacture cost equally; 2. unlubricated seal approach on the sphere that matches of plunger and connecting rod causes this place both not have good lubricating condition, and causing easily on the contrary leakage influences complete machine mechanical efficiency and volumetric efficiency, and the while can't obtain the oil pressure balance and influence performance; 3. bearing housing is connected with connecting rod by two loosening snap rings, because both do not have closely and are adjacent to, cause oil hydraulic motor high pressure oil when starting for the first time from the gap, to spray, when occurring inhaling sky, cylinder body can produce impact simultaneously, even the destruction snap ring, oil hydraulic motor just can not run well even suffer brokenly ring.
The purpose of this utility model is to overcome the defective of prior art, and the new type crank linkage rod type hydraulic motor that a kind of technology is simple, reduce cost is provided; Improve the lubrication and seal condition of plunger and connecting rod, helping lubrication and seal is second purpose of the present utility model; Improve the linkage structure of connecting rod and bearing housing, improving oil hydraulic motor reliable operation performance is the 3rd purpose of the present utility model.
The utility model is realized by following scheme: the housing that has the hydraulic pressure runner is fixed with cylinder cap and end cap respectively, crankshaft support is in bearings at both ends, the bearing housing of making periodic wobble by a plurality of roller bearings is housed on the bent axle, the odd number 5-9 that communicates with runner is housed to being the plunger that has damping hole and the connecting rod of circumference uniform distribution in the plunger case, connecting rod is connected by snap ring with bearing housing, it is characterized in that having on the described cylinder cap hydraulic pressure runner that communicates with housing hydraulic pressure runner, be convenient to clear up near end face.
Have circular groove on the inner ball surface that described plunger and connecting rod match, be provided with plastic hoop in the groove, and have an aperture to communicate with the plunger case hole.
The linkage structure of described connecting rod and bearing housing is connecting rod and the snap ring that the mutual conical surface coincide, and the snap ring outside is provided with belleville spring and the circlip that its junction plane is close to mutually.
So advantage of the present utility model is to shorten and near end face, totally guarantee turbidity test be convenient to sand removal because of cylinder cap casting runner, besides the difficulty of processing of cylinder cap is little more than plunger bushing, and this just helps improving the quality of products and reducing manufacture cost; The linkage structure that lubrication and seal measure between plunger and the connecting rod and connecting rod and bearing housing are close to all helps improving the reliable operation performance of oil hydraulic motor and improves mechanical efficiency, volumetric efficiency.
Description of drawings:
Fig. 1 is a kind of prior art structure (runner is opened on long tortuous housing).
Fig. 2 is an another kind of prior art structure (runner is opened on housing and plunger bushing).
Fig. 3 is the utility model structural representation.
Remake below in conjunction with accompanying drawing embodiment and to elaborate.
Referring to Fig. 3, the housing of new type crank linkage rod type hydraulic motor (1) is connected with screw respectively with end cap (9) with cylinder cap (3), has hydraulic pressure runner (2), (4) that communicate on housing and the cylinder cap, and the runner on the cylinder cap (4) is convenient to cleaning near end face.Bent axle (14) is bearing in the bearings at both ends (17), this bearing branch is located in the bearing hole of housing and end cap, the bearing housing of making periodic wobble (15) by a plurality of rollers (16) supporting is housed on the crank throw of bent axle, plunger that has damping hole (10) (5) and connecting rod (7) that 5 couple who communicates with runner is circumference uniform distribution are housed in the plunger case, the linkage structure of being close to of connecting rod and bearing housing is that the connecting rod both sides have the conical surface, the snap ring (11) that has the conical surface equally matches with connecting rod, snap ring has refilled belleville spring (12) and circlip (13) outward, circlip is stuck in the good draw-in groove of bearing housing preprocessing, like this because the effect of belleville spring tightly is adjacent in the connecting rod both sides snap ring, the axial position of bearing housing is located by 5 pairs of connecting rods and plunger, thereby eliminated the gap between connecting rod and the bearing housing, in preventing to turn round because of inhaling the impact that sky produces.
Be provided with slidably plunger (5) in the plunger case of housing, have circular groove on the inner ball surface that plunger and connecting rod match, be provided with wear-resisting plastic hoop (8) in the groove, bear the sealing of high pressure oil, and there is an aperture (6) to communicate with circular groove and plunger case hole respectively, pressure oil can enter lubricated that circular groove helps that sphere cooperate to pay like this, and sphere is cooperated pay and produce a static pressure partial equilibrium.
Dynamic structure is as follows: high pressure oil is entered plunger case and acts on the plunger (5) through cylinder cap (3) runner by housing (1) runner, enters plunger, connecting rod lower reaction to bearing housing (15) by damping hole (10), thereby produces the effect of part static equilibrium.The active force that hydraulic oil produces is by bearing housing (15), roller (16) affacts on the crank throw of bent axle (14), this active force rotates the oil hydraulic motor bent axle because of the crank throw throw of eccentric moment that rotates, along with high pressure oil enters, plunger (5), connecting rod (7) moves to lower dead centre to axis direction, this moment, plunger case was by hydraulic pressure runner and flow-distribution mechanism and return opening connection, plunger connecting rod is pushed away axis direction and is moved under bent axle promotes, hydraulic oil is expelled back into return opening, each plunger, connecting rod is connected high pressure and low pressure successively, the plunger of each logical high pressure (5), connecting rod (7) just produces driving moment and addition in the same way to output crank shaft (14) center, thereby makes oil hydraulic motor bent axle (14) obtain continuous and stable rotary torque.
Claims (3)
1. new type crank linkage rod type hydraulic motor, the housing (1) that has hydraulic pressure runner (2) is fixing with cylinder cap (3) and end cap (9) respectively, bent axle (14) is bearing in the bearings at both ends (17), the bearing housing of making periodic wobble (15) by a plurality of rollers (16) supporting is housed on the bent axle, the plunger that have damping hole (10) (5) and the connecting rod (7) of odd number 5-9 to being circumference uniform distribution that communicates with runner is housed in the plunger case, connecting rod is connected by snap ring (11) with bearing housing, it is characterized in that having on the described cylinder cap (3) communicating with housing hydraulic pressure runner (2), the hydraulic pressure runner of being convenient to clear up near end face (4).
2. new type crank linkage rod type hydraulic motor as claimed in claim 1 is characterized in that having circular groove on the inner ball surface that described plunger (5) and connecting rod (7) match, is provided with plastic hoop (8) in the groove, and has an aperture (6) to communicate with the plunger case hole.
3. new type crank linkage rod type hydraulic motor as claimed in claim 1, it is characterized in that the described connecting rod (7) and the linkage structure of bearing housing (15) are connecting rod (7) and the snap rings (11) that the mutual conical surface coincide, the snap ring outside is provided with belleville spring (12) and the circlip (13) that its junction plane is close to mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212342 CN2299181Y (en) | 1997-03-10 | 1997-03-10 | Crankshaft link hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212342 CN2299181Y (en) | 1997-03-10 | 1997-03-10 | Crankshaft link hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2299181Y true CN2299181Y (en) | 1998-12-02 |
Family
ID=33930514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97212342 Expired - Lifetime CN2299181Y (en) | 1997-03-10 | 1997-03-10 | Crankshaft link hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2299181Y (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 |
| CN102174924A (en) * | 2011-03-10 | 2011-09-07 | 宁波新宏液压有限公司 | Swing-cylinder hydraulic motor |
| CN102797621A (en) * | 2012-08-13 | 2012-11-28 | 台州帕克兰液压机械有限公司 | Crankshaft link hydraulic motor |
| CN107044380A (en) * | 2016-12-23 | 2017-08-15 | 宁波斯达弗液压传动有限公司 | A kind of medium-sized hydraulic motor of low failure |
-
1997
- 1997-03-10 CN CN 97212342 patent/CN2299181Y/en not_active Expired - Lifetime
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 |
| CN102174924A (en) * | 2011-03-10 | 2011-09-07 | 宁波新宏液压有限公司 | Swing-cylinder hydraulic motor |
| CN102797621A (en) * | 2012-08-13 | 2012-11-28 | 台州帕克兰液压机械有限公司 | Crankshaft link hydraulic motor |
| CN107044380A (en) * | 2016-12-23 | 2017-08-15 | 宁波斯达弗液压传动有限公司 | A kind of medium-sized hydraulic motor of low failure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |