CN203009556U - Crankshaft bearing of hydraulic motor - Google Patents
Crankshaft bearing of hydraulic motor Download PDFInfo
- Publication number
- CN203009556U CN203009556U CN 201220727742 CN201220727742U CN203009556U CN 203009556 U CN203009556 U CN 203009556U CN 201220727742 CN201220727742 CN 201220727742 CN 201220727742 U CN201220727742 U CN 201220727742U CN 203009556 U CN203009556 U CN 203009556U
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- CN
- China
- Prior art keywords
- hydraulic motor
- bearing
- roller
- oil hydraulic
- crankshaft bearing
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Abstract
The utility model discloses a crankshaft bearing of a hydraulic motor. The crankshaft bearing comprises a bearing sleeve and cylindrical rollers, wherein the cylindrical rollers are equidistantly arranged in the internal circumference of the bearing sleeve along the circumferential direction, a circumferential groove is formed in the bearing sleeve, and a retaining rack is embedded in the groove and is in clamping connection with the cylindrical rollers. According to the crankshaft bearing of the hydraulic motor, disclosed by the utility model, the problems of the existing plunger hydraulic motor bearing that the bearing damage, the cylindrical roller falling and the like are caused due to gaps among the cylindrical rollers are solved.
Description
Technical field
The utility model belongs to the bearing apparatus field, is specifically related to a kind of tilting cylinder block type radial plunger type motor crankshaft bearing.
Background technique
As the critical piece that provides in the high-torque hydraulic system, radial plunger type motor directly affects the machine work efficient under actual conditions.It can reliablely and stablely be worked under very low rotating speed, can directly connect with the operation mechanism that is connected low-speed running, complete machine structure is simplified, have advantages of that also efficient can accept with the life-span longly, be widely used in the hydraulic system of light industry and machinery, engineering machinery, mining machinery, handling machinery, ship deck machinery and farm machinery etc.In the structure of this oil hydraulic motor, full type roller bearing on bent axle is the key structure of wherein transmission, bearing is nested is arranged on the bent axle outside, and cylindrical roller is along circumferentially equidistantly being arranged in the bearing housing inner circumference, and cylindrical roller directly contacts with bent axle, has certain interval between cylindrical roller, in the revolution process, because cylindrical roller is stressed larger, damage of bearings occurs easily, the problem such as come off affects the oil hydraulic motor working efficiency.
The model utility content
In order to solve the problems such as the damage of bearings, the roller that existing plunger piston hydraulic motor bearing roller gap cause come off, the utility model has designed a kind of oil hydraulic motor crankshaft bearing.
The technological scheme that the utility model addresses the above problem is: a kind of oil hydraulic motor crankshaft bearing, comprise bearing housing and cylindrical roller, cylindrical roller has circumferential recess along circumferentially equidistantly being arranged in the bearing housing inner circumference in bearing housing, intercalation retainer in groove, and with the cylindrical roller clamping.Its advantage is: being separated by between cylindrical roller has increased roller rolling retainer, has namely eliminated the gap of full roller in rotation process, plays again the effect of protection roller, has improved bearing capacity and working life.
Described oil hydraulic motor crankshaft bearing, retainer are circle structure, have the arc gap corresponding with the cylindrical roller outer surface structure on interior ring, and are pressed in the cylindrical roller surface, consist of the roller ring.Its advantage is: arc structure and cylindrical roller surface is corresponding, eliminates the gap between cylindrical roller fully, and roller is integrally formed, and the top of circular arc is inlaid in groove, and when roller was subject to the radial pressure of bent axle, retainer can not be affected.
Described oil hydraulic motor crankshaft bearing, bearing comprise at least one roller ring, and the roller ring has the gear of rolling along bearing inner circumference axially-aligned between the roller ring.Its advantage is: roll gear and can prevent from contact, friction between the roller ring from affecting the oil hydraulic motor working efficiency.
Described oil hydraulic motor crankshaft bearing rolls gear and is circle structure, and intercalation is between the roller ring.Its advantage is: the circle structure of one guarantees that between the roller ring, distance is constant.
Described oil hydraulic motor crankshaft bearing, bearing housing internal surface two ends have and circumferentially roll draw-in groove, roll inlay card and are contained in and roll in draw-in groove.Its advantage is: roll inlay card and be contained in bearing two ends, the effect of playing the fixed cylinder roller and rolling gear.
Described oil hydraulic motor crankshaft bearing, rolling card is circle structure, and rolls that ring protrudes from bearing inner surface in card.Its advantage is: roll that ring protrudes from bearing inner surface in card, to roller and roll the effect that gear plays backstop, prevent the stressed generation axial dipole field of cylindrical roller.
Described oil hydraulic motor crankshaft bearing has through hole on retainer.Its advantage is: lubricant oil can utilize through hole to retainer and be in contact with it the position and be lubricated, and reduces the friction of retainer and cylindrical roller and axle sleeve.
Description of drawings
Fig. 1 is the utility model oil hydraulic motor crankshaft bearing schematic diagram;
Fig. 2 is the utility model retainer structural representation;
Fig. 3 is the utility model axle sleeve structure schematic diagram;
In figure, 1, axle sleeve; 2, roll card; 3, retainer; 4, roll gear; 5, cylindrical roller; 6, bent axle; 7, through hole; 8, roll draw-in groove; 9, groove.
Embodiment
Below in conjunction with accompanying drawing, structure of the present utility model is explained in detail explanation, be the utility model oil hydraulic motor crankshaft bearing schematic diagram as Fig. 1, a kind of oil hydraulic motor crankshaft bearing, comprise bearing housing 1 and cylindrical roller 5, cylindrical roller is along circumferentially equidistantly being arranged in the bearing housing inner circumference, and bearing is nested is arranged on bent axle 6 outsides, has circumferential recess 9 in bearing housing, intercalation retainer 3 in groove, and with the cylindrical roller clamping.Described retainer is circle structure, has the arc gap corresponding with the cylindrical roller outer surface structure on interior ring, and is pressed in the cylindrical roller surface, consists of the roller ring.Be the utility model retainer structural representation as Fig. 2; Bearing comprises at least one roller ring, is that the utility model oil hydraulic motor crankshaft bearing is made of three roller rings as Fig. 1, and the roller ring has between the roller ring and rolls gear 4 along bearing inner circumference axially-aligned.The described gear that rolls is circle structure, and intercalation is between the roller ring.Bearing housing internal surface two ends have circumferentially rolls draw-in groove 8, rolls card 2 and is inlaid in and rolls in draw-in groove.Fig. 3 is the utility model axle sleeve structure schematic diagram; Rolling card is circle structure, and rolls that ring protrudes from bearing inner surface in card, has through hole 7 on retainer.
Technique scheme has only embodied the optimal technical scheme of technical solutions of the utility model; some changes that those skilled in the art may make some part have wherein all embodied principle of the present utility model, within belonging to protection domain of the present utility model.
Claims (7)
1. an oil hydraulic motor crankshaft bearing, comprise bearing housing (1) and cylindrical roller (5), and cylindrical roller is along circumferentially equidistantly being arranged in the bearing housing inner circumference, it is characterized in that, have circumferential recess (9) in bearing housing, intercalation retainer (3) in groove, and with the cylindrical roller clamping.
2. oil hydraulic motor crankshaft bearing according to claim 1, is characterized in that, described retainer is circle structure, has the arc gap corresponding with the cylindrical roller outer surface structure on interior ring, and be pressed in the cylindrical roller surface, consists of the roller ring.
3. oil hydraulic motor crankshaft bearing according to claim 2, is characterized in that, described bearing comprises at least one roller ring, and the roller ring has between the roller ring and rolls gear (4) along bearing inner circumference axially-aligned.
4. oil hydraulic motor crankshaft bearing according to claim 3, is characterized in that, the described gear that rolls is circle structure, and intercalation is between the roller ring.
5. oil hydraulic motor crankshaft bearing according to claim 1, is characterized in that, bearing housing internal surface two ends have circumferentially rolls draw-in groove (8), rolls card (2) and be inlaid in and roll in draw-in groove.
6. oil hydraulic motor crankshaft bearing according to claim 5, is characterized in that, the described card that rolls is circle structure, and roll that ring protrudes from bearing inner surface in card.
7. oil hydraulic motor crankshaft bearing according to claim 1, is characterized in that, has through hole (7) on retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727742 CN203009556U (en) | 2012-12-26 | 2012-12-26 | Crankshaft bearing of hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727742 CN203009556U (en) | 2012-12-26 | 2012-12-26 | Crankshaft bearing of hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009556U true CN203009556U (en) | 2013-06-19 |
Family
ID=48601153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220727742 Expired - Lifetime CN203009556U (en) | 2012-12-26 | 2012-12-26 | Crankshaft bearing of hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022151548A1 (en) * | 2021-01-18 | 2022-07-21 | 宁波斯达弗液压传动有限公司 | Wear-resistant crankshaft structure |
-
2012
- 2012-12-26 CN CN 201220727742 patent/CN203009556U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022151548A1 (en) * | 2021-01-18 | 2022-07-21 | 宁波斯达弗液压传动有限公司 | Wear-resistant crankshaft structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |