CN215720368U - Clutch boosting oil cylinder - Google Patents
Clutch boosting oil cylinder Download PDFInfo
- Publication number
- CN215720368U CN215720368U CN202122258570.9U CN202122258570U CN215720368U CN 215720368 U CN215720368 U CN 215720368U CN 202122258570 U CN202122258570 U CN 202122258570U CN 215720368 U CN215720368 U CN 215720368U
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- piston rod
- cylinder body
- inner end
- push rod
- limiting
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Abstract
The utility model discloses a clutch power-assisted oil cylinder which comprises a cylinder body, a connecting fork head, a piston rod, a push rod and a return spring for returning the push rod, wherein an oil inlet and an oil return opening are formed in the cylinder body, the inner end of the piston rod is positioned in the cylinder body, the outer end of the piston rod is connected with the connecting fork head, the inner end of the push rod is movably arranged in the piston rod, the outer end of the push rod extends out of the outer end of the piston rod, a power-assisted groove cavity communicated with the oil inlet is formed in the outer edge of the inner end of the piston rod, a valve hole used for communicating the power-assisted groove cavity with the oil return opening is formed in the inner end of the piston rod and corresponds to the inner end of the push rod, the return spring is arranged in the valve hole, and a limiting structure used for preventing the inner end face of the piston rod from moving to be attached to the end face of the bottom of the cylinder body is arranged at the inner end face of the piston rod or at the bottom of the cylinder body. The piston is prevented from reaching the bottom through the internal limiting structure, the related structure is not required to be adjusted, the booster oil cylinder is adaptable to different specifications, the phenomenon of suffocation cannot occur, and the installation and operation are convenient.
Description
Technical Field
The utility model relates to the technical field of clutch boosting, in particular to a clutch boosting oil cylinder.
Background
At present, a large mechanical vehicle is mostly provided with a clutch power-assisted system, and a clutch power-assisted oil cylinder is used for assisting clutch operation, so that the clutch operation is labor-saving and is simple and convenient to operate. The clutch boosting oil cylinder comprises a cylinder body and a piston arranged in the cylinder body, and an oil inlet and an oil return port are formed in the cylinder body; when the existing clutch boosting oil cylinder works, after a piston is arranged to the bottom, the existing clutch boosting oil cylinder is easy to be dead and fail; therefore, the limit stop is arranged at the connecting fork, the piston is prevented from moving to the bottom through the limit stop, the position of the limit stop needs to be adjusted corresponding to clutch power cylinders of different specifications, the position of the limit stop is required to be accurate, the whole vehicle needs to be adjusted after being installed, and the adjusting operation is complex.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the technical problem to be solved by the utility model is to provide a clutch boosting oil cylinder, which is not required to adjust a related structure, can adapt to boosting oil cylinders of different specifications and cannot be blocked.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
the clutch power-assisted oil cylinder comprises a cylinder body, a connecting fork, a piston rod, a push rod and a return spring for returning the push rod, wherein an oil inlet and an oil return opening are formed in the cylinder body, the inner end of the piston rod is located in the cylinder body, the outer end of the piston rod is connected with the connecting fork, the inner end of the push rod is movably arranged in the piston rod, the outer end of the push rod extends out of the outer end of the piston rod, a power-assisted groove cavity communicated with the oil inlet is formed in the outer edge of the inner end of the piston rod, a valve hole used for communicating the power-assisted groove cavity with the oil return opening is formed in the inner end of the piston rod corresponding to the inner end of the push rod, the return spring is arranged in the valve hole, and a limiting structure used for preventing the inner end face of the piston rod from moving to be attached to the end face of the bottom of the cylinder body is arranged on the inner end of the piston rod or the bottom of the cylinder body.
Further, in the above-mentioned case,
the inner end face of the piston rod is provided with a mounting hole, the limiting structure is a limiting valve core, and the limiting valve core is arranged at the mounting hole.
One end of the valve hole is arranged corresponding to the power assisting groove cavity, and the other end of the valve hole is arranged corresponding to the outer edge of the inner end of the piston rod.
The limiting valve core is of a rod-shaped structure, and one end of the limiting valve core is arranged corresponding to the inner end of the push rod.
The return spring is a spiral spring, and one end of the limiting valve core is positioned in the spiral spring.
The other end of the limiting valve core is provided with a limiting disc and a frustum, the end face of the frustum is located on the outer side of the mounting hole, the limiting disc is located on the inner side of the mounting hole, and a group of through holes are formed in the limiting disc.
Compared with the prior art, the utility model has the following advantages: this separation and reunion helping hand hydro-cylinder structural design is reasonable, avoids the piston to the end through inside limit structure, and it need not to adjust relevant structure, adaptable different specification helping hand hydro-cylinders can not appear holding back the phenomenon of dying, the installation operation of being convenient for.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic view of a power cylinder according to the present invention.
FIG. 2 is a schematic cross-sectional view of a power cylinder according to the present invention.
In the figure:
1. the hydraulic control valve comprises a connecting fork head, a dust cover 2, a cylinder body 3, an oil inlet 301, an oil return port 302, a piston rod 4, a throttle valve piston rod body 5, a push rod seat sleeve 6, a locking nut 7, a throttle valve seat 8, a piston 9, a sealing ring 10, a return spring 11 and a limiting valve core 12.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the clutch boosting oil cylinder comprises a cylinder body 3, a connecting fork head 1, a piston rod 4, a push rod and a return spring 11 for returning the push rod; the cylinder body is provided with an oil inlet 301 and an oil return port 302, the inner end of the piston rod is positioned in the cylinder body, the outer end of the piston rod is connected with the connecting fork head, the inner end of the push rod is movably arranged in the piston rod, the outer end of the push rod extends out of the outer end of the piston rod, the outer edge of the inner end of the piston rod is provided with a power-assisting groove cavity used for being communicated with the oil inlet, a valve hole used for communicating the power-assisting groove cavity with the oil return port is formed in the inner end of the piston rod corresponding to the inner end of the push rod, a return spring is arranged in the valve hole, and a limiting structure used for preventing the inner end face of the piston rod from moving to be attached to the end face of the bottom of the cylinder body is arranged at the inner end of the piston rod or at the bottom of the cylinder body.
A dust cover 2 is arranged between the connecting fork head and the cylinder body, the outer portion of the piston rod is located in the dust cover, a push rod seat sleeve 6 is arranged at the opening end of the cylinder body and fixed through a locking nut 7, and a sealing ring is arranged between the push rod seat sleeve and the outer edge of the piston rod.
A bulge is arranged on the inner outer edge of the piston rod and matched with the inner wall of the cylinder body through a sealing ring 10, and a power-assisted groove cavity is formed between the bulge and the push rod seat sleeve; one end of the valve hole is arranged corresponding to the power-assisted groove cavity, the other end of the valve hole is arranged corresponding to the outer edge of the inner end of the piston rod, namely, the other end of the valve hole is positioned on one side of the bulge, and the structure is compact.
Preferably, the inner end face of the piston rod is provided with a mounting hole, the limiting structure is a limiting valve core 12, and the limiting valve core is arranged at the mounting hole; the limiting valve core 12 is of a rod-shaped structure, one end of the limiting valve core 12 is arranged corresponding to the inner end of the push rod, the push rod is a throttle valve piston rod body 5, and the position reliability of the limiting valve core is guaranteed through the throttle valve piston rod body.
The return spring is a spiral spring, one end of the limiting valve core is positioned in the spiral spring, and the structure is compact; the other end of the limiting valve core is provided with a limiting disc and a frustum, the end face of the frustum is located on the outer side of the mounting hole, the limiting disc is located on the inner side of the mounting hole, and the limiting disc is provided with a group of through holes, so that flow is not affected.
Furthermore, the inner end structure of the piston rod is a throttle valve seat 8 arranged on the piston rod, the throttle valve seat is in threaded fit with the piston rod, the protrusion, the valve hole and the mounting hole are all arranged on the throttle valve seat, the protrusion on the throttle valve seat forms a piston 9, the outer edge of the piston is matched with the inner wall of the cylinder body through a sealing ring 10, and the body parts of the throttle valve seat and the piston rod are respectively processed, so that the piston rod is simple and convenient to manufacture and low in cost.
The clutch boosting oil cylinder is reasonable in structural design, the piston is prevented from reaching the bottom through the limiting valve core in the clutch boosting oil cylinder, relevant structures do not need to be adjusted, the clutch boosting oil cylinder can adapt to boosting oil cylinders of different specifications, the phenomenon of blocking is avoided, and the clutch boosting oil cylinder is convenient to install and operate.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The utility model is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the utility model is not limited by the above-mentioned manner, and it is within the scope of the utility model to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (6)
1. The utility model provides a separation and reunion helping hand hydro-cylinder, includes the cylinder body, connects jaw, piston rod, push rod and is used for the return spring of push rod return, be equipped with oil inlet and oil return opening on the cylinder body, the inner of piston rod is arranged in the cylinder body, and the outer end of piston rod links to each other with connecting the jaw, and the mobilizable setting in the inner of push rod is in the piston rod, and the outer end of push rod stretches out from the piston rod outer end, is equipped with the helping hand groove chamber that is used for being linked together with the oil inlet in the inner outer fringe of piston rod, corresponds in the inner of piston rod that the inner push rod is equipped with the valve opening that is used for intercommunication helping hand groove chamber and oil return opening, and return spring establishes in the valve opening, its characterized in that: and a limiting structure for preventing the inner end surface of the piston rod from moving to be attached to the end surface of the bottom of the cylinder body is arranged at the inner end of the piston rod or the bottom of the cylinder body.
2. The clutch servo cylinder of claim 1, wherein: the inner end face of the piston rod is provided with a mounting hole, the limiting structure is a limiting valve core, and the limiting valve core is arranged at the mounting hole.
3. The clutch servo cylinder of claim 1, wherein: one end of the valve hole is arranged corresponding to the power assisting groove cavity, and the other end of the valve hole is arranged corresponding to the outer edge of the inner end of the piston rod.
4. The clutch servo cylinder of claim 2, wherein: the limiting valve core is of a rod-shaped structure, and one end of the limiting valve core is arranged corresponding to the inner end of the push rod.
5. The clutch servo cylinder of claim 4, wherein: the return spring is a spiral spring, and one end of the limiting valve core is positioned in the spiral spring.
6. The clutch servo cylinder of claim 4, wherein: the other end of the limiting valve core is provided with a limiting disc and a frustum, the end face of the frustum is located on the outer side of the mounting hole, the limiting disc is located on the inner side of the mounting hole, and a group of through holes are formed in the limiting disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122258570.9U CN215720368U (en) | 2021-09-17 | 2021-09-17 | Clutch boosting oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122258570.9U CN215720368U (en) | 2021-09-17 | 2021-09-17 | Clutch boosting oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215720368U true CN215720368U (en) | 2022-02-01 |
Family
ID=80021860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122258570.9U Active CN215720368U (en) | 2021-09-17 | 2021-09-17 | Clutch boosting oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215720368U (en) |
-
2021
- 2021-09-17 CN CN202122258570.9U patent/CN215720368U/en active Active
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