CN215848277U - Fluid drive joint mechanism - Google Patents
Fluid drive joint mechanism Download PDFInfo
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- CN215848277U CN215848277U CN202122183869.2U CN202122183869U CN215848277U CN 215848277 U CN215848277 U CN 215848277U CN 202122183869 U CN202122183869 U CN 202122183869U CN 215848277 U CN215848277 U CN 215848277U
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- joint
- sleeve
- rotating shaft
- boss
- outer boss
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Abstract
The utility model provides a fluid driving joint mechanism which comprises a joint sleeve and a joint rotating shaft, wherein the joint rotating shaft is arranged along the axial direction of the joint sleeve in a rotating mode, two ends of the joint sleeve are sealed through end covers, an inner boss extending to the joint rotating shaft is arranged on the inner side of the joint sleeve, an outer boss is arranged on one side of the joint rotating shaft in the joint sleeve, the inner cavity of the joint sleeve is divided into two cavities through the inner boss, the joint rotating shaft and the outer boss, and the two cavities are respectively communicated to the outside through a fluid channel A and a fluid channel B. The utility model aims to solve the problems that the existing joint mechanism occupies a large space, the precise structure of a driving part is exposed outside, the joint mechanism is easy to damage under complex working conditions, the maintenance cost is high and the like. Belongs to the technical field of mechanical joints.
Description
Technical Field
The utility model relates to a fluid driving joint mechanism, and belongs to the technical field of mechanical joints.
Background
The joint is an indispensable important structure in a plurality of sports machines, is a fulcrum for realizing mechanical actions such as swinging, rotation, stretching and the like, and is a connecting mechanism which is most widely applied in the mechanical actions.
Most of the existing joint mechanisms adopt air cylinders or hydraulic cylinders to be fixed at the upper end and the lower end of a joint, and the rotating ends of the joints are driven to rotate along a certain fulcrum through the expansion and contraction of the air cylinders or the hydraulic cylinders.
In the existing joint mechanism, a driving part is arranged outside a joint and needs to occupy larger structural space, and meanwhile, the precision structure of the driving part is exposed outside, so that the driving part is easy to damage under complex working conditions and high in maintenance cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide: the utility model provides a fluid drive joint mechanism to solve current joint mechanism occupation space great, the precision structure of drive part exposes outside, and easy damage under the complicated operating mode, problem such as maintenance cost height.
In order to achieve the purpose, the fluid driving joint mechanism comprises a joint sleeve and a joint rotating shaft which is arranged along the axial direction of the joint sleeve in a rotating mode, two ends of the joint sleeve are sealed through end covers, an inner boss which extends to the joint rotating shaft is arranged on the inner side of the joint sleeve, an outer boss is arranged on one side of the joint rotating shaft in the joint sleeve, the inner cavity of the joint sleeve is divided into two cavities through the inner boss, the joint rotating shaft and the outer boss, and the two cavities are communicated to the outside through a fluid channel A and a fluid channel B respectively.
In the joint mechanism, the outer boss is in sliding seal with the inner wall of the joint sleeve, and the inner boss is in sliding seal with the joint rotating shaft;
in the joint mechanism, the joint rotating shaft is provided with an outer boss or is sleeved with a fixed sleeve, and the outer boss is fixed on the sleeve or is integrated with the sleeve.
Compared with the prior art, the utility model fuses the joint structure and the driving structure, and has the following advantages: firstly, the mechanism has a simple structure and occupies a small space; secondly, the mechanism driving structure is hidden in the joint structure, so that the reliability and the safety of the operation of the joint mechanism are improved; thirdly, the mechanism has compact structure and concise appearance and is convenient for routine maintenance.
Drawings
FIG. 1 is a schematic front view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.
Example 1
Referring to fig. 1 and 2, the embodiment provides a fluid-driven joint mechanism, which includes a joint sleeve 1 and a joint rotating shaft 2 rotatably disposed along an axial direction of the joint sleeve 1, two ends of the joint sleeve 1 are sealed by end caps 3, an inner boss 4 extending to the joint rotating shaft 2 is disposed inside the joint sleeve 1, an outer boss 5 is fixed on one side of the joint rotating shaft 2 inside the joint sleeve 1, an inner cavity of the joint sleeve 1 is divided into two cavities by the inner boss 4, the joint rotating shaft 2 and the outer boss 5, the boss 5 and an inner wall of the joint sleeve 1 are slidably sealed, the inner boss 4 and the joint rotating shaft 2 are slidably sealed, and the two cavities are respectively communicated to the outside through a fluid passage a7 and a fluid passage B6.
The specific use method is as follows:
connecting the outer ends of the fluid channel A7 and the fluid channel B6 with a fluid pipeline, controlling fluid to enter a cavity through the fluid channel A7, expanding the volume of the cavity, pushing the outer boss 5 to rotate, compressing the other cavity space, discharging fluid in the cavity through the fluid channel B6, and enabling the joint rotating shaft 2 to rotate along with the outer boss 5; on the contrary, the control fluid enters the other cavity through the fluid channel B6, the other cavity expands in volume, the outer boss 5 is pushed to rotate, the cavity space is compressed, the fluid in the cavity is discharged through the fluid channel A7, and the joint rotating shaft 2 rotates along with the outer boss 5 in the opposite direction.
The joint sleeve 1 is provided with a butt joint structure (a threaded hole and the like) outside for connecting with the joint upper arm, the joint sleeve 1 is fixedly connected with the joint upper arm outside, one end or two ends of the joint rotating shaft 2 are fixedly connected with the joint lower arm, the butt joint structure (flat and the like) is arranged at the two ends of the joint rotating shaft 2 for connecting with the joint lower arm, one optional side of the joint upper arm and the joint lower arm is a moving end, the other side of the joint upper arm and the joint lower arm is a fixed end, and the moving end rotates around the fixed end by taking the joint center as a fulcrum. When the joint upper arm is fixed, the joint sleeve 1 is fixed, fluid enters a cavity through the fluid channel A7, the cavity expands in volume, the outer boss 5 is pushed to rotate to the left, and the joint rotating shaft 2 rotates anticlockwise; when the joint rotating shaft 2 needs to rotate reversely, fluid enters another cavity through the fluid channel B6, the volume of the other cavity is expanded, the outer boss 5 is pushed to rotate rightwards, and the joint rotating shaft 2 rotates clockwise. When the lower joint arm is fixed, the joint rotating shaft 2 is fixed, fluid enters the cavity through the fluid channel A7, the volume of the cavity is expanded, the inner boss 4 is pushed to rotate to the left, and the joint sleeve 1 rotates clockwise; fluid enters the other cavity through the fluid channel B6, the volume of the cavity is expanded, the inner boss 4 is pushed to rotate to the right, and the joint sleeve 1 rotates anticlockwise.
Example 2
The difference between this embodiment and embodiment 1 is that a sleeve 8 is further sleeved and fixed on the joint rotating shaft 2, and the outer boss 5 is fixed on the sleeve 8, or the outer boss 5 and the sleeve 8 are of an integrated structure.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides a fluid drive joint mechanism, its characterized in that, including joint sleeve (1) and joint pivot (2) along joint sleeve (1) axial rotation setting, joint sleeve (1) both ends are sealed through end cover (3), the inboard of joint sleeve (1) is provided with interior boss (4) that extend to joint pivot (2) department, there is outer boss (5) joint pivot (2) one side in joint sleeve (1), joint sleeve (1) inner chamber is through interior boss (4), joint pivot (2) and outer boss (5) are separated for two die cavities, and two die cavities communicate to the outside through fluid passage A (7) and fluid passage B (6) respectively.
2. The fluid actuated joint mechanism according to claim 1, wherein: the outer boss (5) and the inner wall of the joint sleeve (1) are in sliding seal, and the inner boss (4) and the joint rotating shaft (2) are in sliding seal.
3. The fluid actuated joint mechanism according to claim 1, wherein: the joint rotating shaft (2) is provided with an outer boss (5), the outer boss (5) and the joint rotating shaft (2) are of an integrated structure, or the joint rotating shaft (2) is sleeved with a fixing sleeve (8), the outer boss (5) is fixed on the sleeve (8), or the outer boss (5) and the sleeve (8) are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122183869.2U CN215848277U (en) | 2021-09-10 | 2021-09-10 | Fluid drive joint mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122183869.2U CN215848277U (en) | 2021-09-10 | 2021-09-10 | Fluid drive joint mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215848277U true CN215848277U (en) | 2022-02-18 |
Family
ID=80257910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122183869.2U Active CN215848277U (en) | 2021-09-10 | 2021-09-10 | Fluid drive joint mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215848277U (en) |
-
2021
- 2021-09-10 CN CN202122183869.2U patent/CN215848277U/en active Active
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