CN202901105U - One-way clutch and excavator applying same - Google Patents
One-way clutch and excavator applying same Download PDFInfo
- Publication number
- CN202901105U CN202901105U CN 201220585408 CN201220585408U CN202901105U CN 202901105 U CN202901105 U CN 202901105U CN 201220585408 CN201220585408 CN 201220585408 CN 201220585408 U CN201220585408 U CN 201220585408U CN 202901105 U CN202901105 U CN 202901105U
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- CN
- China
- Prior art keywords
- seat ring
- outer race
- overrunning clutch
- oil hydraulic
- inner race
- 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 - Fee Related
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- Mechanical Operated Clutches (AREA)
Abstract
The utility model provides a one-way clutch and an excavator applying the same and belongs to the technical field of engineering machinery manufacturing. The one-way clutch comprises an outer seat ring 1, an inner seat ring 2, a supporting part 3 for unidirectionally transmitting torque and a spring part 4 retaining the supporting part 3, the outer seat ring 1 comprises a rotating part 11 and a connecting part 12, the inner seat ring 2 is arranged in the rotating part 11 of the outer seat ring 1, the outer seat ring 1 and the inner seat ring 2 are mutually radially distant and coaxially arranged to relatively rotate, the supporting part 3 is arranged between the outer seat ring 1 and the inner seat ring 2, and internal splines are arranged on inner walls 13 and 21 of the connecting part 12 of the outer seat ring 1 and the inner seat ring 2 respectively. By arranging internal spline structures on the inner walls of the inner seat ring and the outer seat ring, the one-way clutch is convenient to directly connect with a hydraulic pump and a hydraulic motor, and axial arrangement size is reduced; and a wedge type supporting mechanism is adopted in the middle, so that the one-way clutch is large in transmission torque and long in service life.
Description
Technical field
The utility model belongs to mechanical manufacturing field and relates to a kind of clutch, relates in particular to a kind of overrunning clutch and uses the excavator of this clutch.
Background technique
Clutch is used very extensive in automobile industry, and the starting of automobile and transmission all need to finish by clutch, and is different on used clutch and the automobile in engineering machinery, mostly all is rigidly connected, inseparable.
On hydraulic shovel, pump and motor can rotating Vortexes sometimes, also can counterrotating, can only single-direction transmission moment in order to limit them, and need a kind of overrunning clutch connect pump and motor, but make it unidirectional carry-over moment, oppositely then mutually idle running.
Existing overrunning clutch can be divided into two types of roller-type overrunning clutch and free wheeling sprag clutchs.Free wheeling sprag clutch is comprised of outer ring, 8-shaped voussoir, keep-spring and inner ring, these voussoirs with roller-type overrunning clutch in the similar mode of roller work.When rotated along an engagement direction with respect to inner ring the outer ring, voussoir was pushed run-off the straight, abdicates certain space between inside and outside circle, thereby can lock-up clutch.
Yet when if the outer ring is attempted with respect to inner ring along counter-rotation, voussoir is because of the cause of geometrical shape, and will be stuck in can't be movable between the inside and outside circle, thereby both are together locked.For guarantee voussoir reliably wedge between inside and outside circle, in this overrunning clutch, a keep-spring is housed, make voussoir by the directions that can pin two circles, and remain that voussoir has a bit along an engagement direction.
Before the utility model, the inventor finds prior art, and there are the following problems at least: overrunning clutch Internal and external cycle commonly used all is to adopt keyway arrangements in the prior art, can only be connected with axle, if be applied on the excavator, then need make spline housing and carry out the transition connection, increased axial dimension, arranged very difficult at excavator.
Therefore those skilled in the art is devoted to develop a kind of overrunning clutch that can be applied on the excavator.
The model utility content
A kind of overrunning clutch now is provided and uses the excavator of this clutch, be provided with the internal splines structure by the inwall at interior outer race, conveniently directly be connected with oil hydraulic pump and oil hydraulic motor, reduce axial arranged size, the middle wedge block type supporting mechanism that adopts, transmitting torque is large, long service life.Concrete technological scheme is as follows:
A kind of overrunning clutch, comprise the supporting member of outer race, inner race, unidirectional delivery torque and the spring part that keeps described supporting member, described outer race comprises rotation section and joint, described inner race is arranged in the rotation section of described outer race, described outer race and inner race mutually radially at a distance of and coaxial setting to relatively rotate, described supporting member is arranged between outer race and the inner race, is equipped with internal spline on the joint of described outer race and the inwall of inner race.
Preferably, described internal spline is evenly arranged on the inwall of described joint and inner race in the shape of a spiral.
Preferably, described internal spline is involute splines.
Preferably, described internal spline processes by Broaching Technology.
Preferably, described supporting member is voussoir, and described spring part keeps described voussoir and meshes the described voussoir of direction bias voltage along one.
Preferably, described voussoir is shaped as 8-shaped.
A kind of excavator, comprise overrunning clutch described above, oil hydraulic pump and oil hydraulic motor, be equipped with splined shaft on described oil hydraulic pump and the oil hydraulic motor, described oil hydraulic pump is connected splined shaft and is connected with the joint of described outer race, the internal spline of inner race respectively with oil hydraulic motor.
Preferably, also be provided with the axially locating back-up ring on the inwall of described outer race joint.
Technique scheme has following advantage or beneficial effect:
Be provided with internal spline structure on the inwall of interior outer race, the convenient connection, dwindle axial dimension, reduce the space and arranged difficulty;
On the whole simple in structure, make easy to process, long service life.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is embodiment's of the present utility model structural representation;
Fig. 2 is the structural representation of embodiment's of the present utility model one-way rotation structure.
Wherein, 1 be outer race, 11 for the rotation section, 12 for joint, 13 for the inwall of joint, 2 for inner race, 21 be spring part for the inwall of inner race, 3 is supporting member, 4.
Embodiment
Below with reference to drawings and Examples the utility model is done concrete explaination.
A kind of overrunning clutch of embodiment of the present utility model as shown in Fig. 1 and Fig. 2 comprises the supporting member 3 of outer race 1, inner race 2, unidirectional delivery torque and the spring part 4 that keeps described supporting member 3.Outer race 1 comprises rotation section 11 and joint 12, and inner race 2 is arranged in the rotation section 11 of outer race 1, and radially apart also coaxial setting is to relatively rotate mutually for outer race 1 and inner race 2, and supporting member 3 is arranged between outer race 1 and the inner race 2.As shown in fig. 1, be equipped with internal spline on the inwall 13,21 of the joint 12 of outer race 1 and inner race 2.
Embodiment of the present utility model is by being provided with the internal splines structure at interior outer race 1,2 inwall 13,21, conveniently directly be connected with oil hydraulic pump and oil hydraulic motor, reduce axial arranged size, the middle wedge block type supporting mechanism that adopts, transmitting torque is large, long service life.
In embodiment of the present utility model, preferred internal spline is evenly arranged on the inwall 13,21 of joint 12 and inner race 2 in the shape of a spiral.Thereby when guarantee connecting stressed evenly, prevent from causing fracture.And preferably internal spline processes by Broaching Technology, and internal spline is involute splines.The centering mode of involute splines is profile of tooth centering, and radial force is arranged on the tooth during stand under load, can play self-centering action, and it is stressed evenly to be conducive to each tooth, and intensity is high, long service life.
In addition, as shown in Figure 2, in embodiment of the present utility model, supporting member 3 is voussoir, and spring part 4 keeps voussoir and meshes direction bias voltage voussoir along one.And preferred voussoir be shaped as 8-shaped.So, when along as shown in Figure 2, outer race 1 is when rotating with respect to inner race 2 clockwise directions, and voussoir is pushed run-off the straight, thereby can the clutch locking.If outer race 1 is attempted with respect to inner race 2 when rotating counterclockwise, voussoir is because of the cause of geometrical shape, and will be stuck in can't be movable between the inner and outer race, thereby both are together locked.In embodiment of the present utility model, supporting member 3 also can be selected the one-way rotation structure of roller type, roller-type one way clutch, and present embodiment does not limit this.
A kind of excavator of embodiment of the present utility model comprises overrunning clutch described above, oil hydraulic pump and oil hydraulic motor.Be equipped with splined shaft on oil hydraulic pump and the oil hydraulic motor, oil hydraulic pump is connected splined shaft and is connected with the joint 12 of outer race 1, the internal spline of inner race 2 respectively with oil hydraulic motor.And also be provided with the axially locating back-up ring on the inwall 13 of preferred outer race 1 joint 12, make things convenient for the inwall 13 of outer race 1 joint 12 directly to connect splined shaft.
More than specific embodiment of the utility model is described in detail, but it is just as example, the utility model is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the utility model is carried out and substituting also all among category of the present utility model.Therefore, not breaking away from impartial conversion and the modification of doing under the spirit and scope of the present utility model, all should be encompassed in the scope of the present utility model.
Claims (8)
1. overrunning clutch, comprise outer race (1), inner race (2), the supporting member of unidirectional delivery torque (3) and the spring part (4) that keeps described supporting member (3), described outer race (1) comprises rotation section (11) and joint (12), described inner race (2) is arranged in the rotation section (11) of described outer race (1), described outer race (1) and inner race (2) mutually radially at a distance of and coaxial setting to relatively rotate, described supporting member (3) is arranged between outer race (1) and the inner race (2), it is characterized in that the joint (12) of described outer race (1) and the inwall (13 of inner race (2), 21) be equipped with internal spline on.
2. overrunning clutch as claimed in claim 1 is characterized in that, described internal spline is evenly arranged on the inwall (13,21) of described joint (12) and inner race (2) in the shape of a spiral.
3. overrunning clutch as claimed in claim 2 is characterized in that, described internal spline is involute splines.
4. overrunning clutch as claimed in claim 3 is characterized in that, described internal spline processes by Broaching Technology.
5. overrunning clutch as claimed in claim 1 is characterized in that, described supporting member (3) is voussoir, and described spring part (4) keeps described voussoir and meshes the described voussoir of direction bias voltage along one.
6. overrunning clutch as claimed in claim 5 is characterized in that, described voussoir be shaped as 8-shaped.
7. excavator, it is characterized in that, comprise overrunning clutch as claimed in claim 1, oil hydraulic pump and oil hydraulic motor, be equipped with splined shaft on described oil hydraulic pump and the oil hydraulic motor, described oil hydraulic pump is connected splined shaft and is connected with the joint (12) of described outer race (1), the internal spline of inner race (2) respectively with oil hydraulic motor.
8. excavator as claimed in claim 7 is characterized in that, also is provided with the axially locating back-up ring on the inwall (13) of described outer race (1) joint (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585408 CN202901105U (en) | 2012-11-08 | 2012-11-08 | One-way clutch and excavator applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585408 CN202901105U (en) | 2012-11-08 | 2012-11-08 | One-way clutch and excavator applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202901105U true CN202901105U (en) | 2013-04-24 |
Family
ID=48121778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220585408 Expired - Fee Related CN202901105U (en) | 2012-11-08 | 2012-11-08 | One-way clutch and excavator applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202901105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107614206A (en) * | 2015-10-05 | 2018-01-19 | 株式会社小仓 | Hydraulic work device |
-
2012
- 2012-11-08 CN CN 201220585408 patent/CN202901105U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107614206A (en) * | 2015-10-05 | 2018-01-19 | 株式会社小仓 | Hydraulic work device |
| US10723008B2 (en) | 2015-10-05 | 2020-07-28 | Kabushiki Kaisha Ogura | Hydraulically-actuated device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20171108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |