CN211501170U - Miniature hydraulic cylinder - Google Patents
Miniature hydraulic cylinder Download PDFInfo
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- CN211501170U CN211501170U CN201921936102.9U CN201921936102U CN211501170U CN 211501170 U CN211501170 U CN 211501170U CN 201921936102 U CN201921936102 U CN 201921936102U CN 211501170 U CN211501170 U CN 211501170U
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- cylinder
- pressure sensor
- hydraulic cylinder
- guide sleeve
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Abstract
The utility model belongs to the technical field of the pneumatic cylinder, concretely relates to miniature pneumatic cylinder, including cylinder, integral piston, plug screw and cylinder bottom, cylinder one end is equipped with the cylinder bottom and passes through the welding mode and connect, and the other end is equipped with the uide bushing and passes through threaded connection, it has oil inlet and oil return opening to open on the cylinder bottom, has reduced the installation space of pneumatic cylinder, the uide bushing plays the effect of direction and end cover, has alleviateed the quality of pneumatic cylinder, simultaneously it has installation pressure sensor's mounting hole to open on cylinder and the cylinder bottom for the structure of pneumatic cylinder is compacter, and it is more convenient to measure pressure.
Description
Technical Field
The utility model belongs to the technical field of the pneumatic cylinder, concretely relates to miniature pneumatic cylinder.
Background
The exoskeleton assisting robot is a highly man-machine coupled wearable device which takes human as a main body and combines artificial intelligence with a mechanical device. The exoskeleton power-assisted robot can not only protect and support a human body, but also obviously enhance the load bearing capacity and endurance of the human body. In order to improve the bearing capacity, a hydraulic driving mode is generally adopted.
The exoskeleton power-assisted robot detects the pressure in the hydraulic cylinder at any time when walking with a load, so as to control the driving torque at the corresponding joint of the exoskeleton power-assisted robot, the existing hydraulic cylinder is not provided with a pressure sensor, a tee pipe joint is connected at an oil inlet and an oil outlet, and then the pressure sensor is arranged to realize the measurement of the pressure, so that the existing hydraulic cylinder can occupy some originally limited installation space, in addition, the control oil pipe is respectively connected to the two sides of the hydraulic cylinder, so that the length of the oil pipe can be increased, and the motion of the exoskeleton power-assisted robot can be influenced.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The to-be-solved technical problem of the utility model is: how to provide a quality is little, be convenient for pressure measurement, installation space is little pneumatic cylinder.
(II) technical scheme
In order to solve the technical problem, the utility model provides a miniature pneumatic cylinder, include: the cylinder barrel 11, the integral piston 2, the first screw plug 101, the second screw plug 102 and the cylinder bottom 8;
the cylinder bottom 8 is arranged at one end of the cylinder barrel 11 and connected in a welding mode, the other end of the cylinder barrel is connected with the guide sleeve 4 through threads, and the integral piston 2 is arranged in the guide sleeve 4 in a penetrating mode;
the guide sleeve 4 is used for guiding the integral piston 2 on one hand and is connected with the internal thread of the cylinder barrel 11 to play a role of a cylinder cover on the other hand; a first O-shaped sealing ring 51 is arranged between the outer wall of the guide sleeve 4 and the inner wall of the cylinder barrel 11; an AY-shaped dustproof ring 3 and a Y-shaped sealing ring 13 are arranged between the inner wall of the guide sleeve 4 and the outer wall of the piston rod of the integral piston 2;
a sealing element mounting groove is formed in the outer periphery of the piston head of the integral piston 2 at the inner side in the radial direction, a combined sealing ring is arranged in the sealing element mounting groove, and the combined sealing ring comprises two retaining rings 7 and a second O-shaped sealing ring 52;
a mounting hole of a pressure sensor is formed in the cylinder bottom 8, and a first pressure sensor 91 is arranged in the mounting hole and pressed by a first screw plug 101;
the other end of the cylinder barrel 11 opposite to the cylinder bottom 8 is provided with a pressure sensor seat 12, and the second pressure sensor 92 is arranged in the pressure sensor seat 12 and pressed by a second screw plug 102.
Wherein, a straight groove is arranged on the first plug screw 101.
Wherein, a straight groove is arranged on the second plug screw 102.
Wherein, in order to enhance the sealing effect of the pressure sensor seat 12 and the cylinder 11, the installation plane between the two is set to be a plane.
Wherein, a straight groove is arranged on the large end surface of the outer side of the guide sleeve 4.
Wherein, an oil inlet and an oil return opening are arranged on the cylinder bottom 8.
Wherein, the steel pipe 6 is connected with one oil port on the cylinder barrel 11 and the cylinder bottom 8 in a welding mode.
Wherein, the oil liquid in the front cavity is connected with an oil port on the cylinder bottom 8 through a steel pipe 6.
Wherein, two hydraulic fluid ports on the cylinder bottom 8 set up to stagger certain angle in the vertical direction, are convenient for the installation of coupling.
Wherein, the piston rod end of the integral piston 2 at the outer side is connected with the trunnion 1 through threads, and the trunnion 1 is locked through a jackscrew 14.
(III) advantageous effects
Compared with the prior art, the utility model discloses possess following beneficial effect: the cylinder barrel one end is equipped with the cylinder end and passes through welded mode and connect, and the other end is equipped with the uide bushing and passes through threaded connection, and it has oil inlet and oil return opening to open on the cylinder end, has reduced the installation space of pneumatic cylinder, and the uide bushing plays the effect of direction and end cover, has alleviateed the quality of pneumatic cylinder, simultaneously, states and to open on cylinder barrel and the cylinder end has the mounting hole of installation pressure sensor for the structure of pneumatic cylinder is compacter, and it is more convenient to measure pressure.
Drawings
Fig. 1 is a cross-sectional view of the overall structure of the present invention.
Fig. 2 is an external view of the present invention.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings and examples.
In order to solve the prior art problem, the utility model provides a miniature pneumatic cylinder, as shown in fig. 1-2, it includes: the cylinder barrel 11, the integral piston 2, the first screw plug 101, the second screw plug 102 and the cylinder bottom 8;
the cylinder bottom 8 is arranged at one end of the cylinder barrel 11 and connected in a welding mode, the other end of the cylinder barrel is connected with the guide sleeve 4 through threads, and the integral piston 2 is arranged in the guide sleeve 4 in a penetrating mode;
the guide sleeve 4 is used for guiding the integral piston 2 on one hand and is connected with the internal thread of the cylinder barrel 11 to play a role of a cylinder cover on the other hand; a first O-shaped sealing ring 51 is arranged between the outer wall of the guide sleeve 4 and the inner wall of the cylinder barrel 11; an AY-shaped dustproof ring 3 and a Y-shaped sealing ring 13 are arranged between the inner wall of the guide sleeve 4 and the outer wall of the piston rod of the integral piston 2;
a sealing element mounting groove is formed in the outer periphery of the piston head of the integral piston 2 at the inner side in the radial direction, a combined sealing ring is arranged in the sealing element mounting groove, and the combined sealing ring comprises two retaining rings 7 and a second O-shaped sealing ring 52;
a mounting hole of a pressure sensor is formed in the cylinder bottom 8, and a first pressure sensor 91 is arranged in the mounting hole and pressed by a first screw plug 101;
the other end of the cylinder barrel 11 opposite to the cylinder bottom 8 is provided with a pressure sensor seat 12, and the second pressure sensor 92 is arranged in the pressure sensor seat 12 and pressed by a second screw plug 102.
According to the difference of the pressure sensor 9, the cylinder bottom 8 is provided with a pressure sensor mounting hole and a pressure sensor seat 12 which can be changed correspondingly, when pressure measurement is not needed, the pressure sensor 9, the screw plug 10 and the pressure sensor seat 12 can be detached for reducing the mass, and corresponding plugs are mounted.
For convenience of installation, a straight groove is formed in the first plug screw 101.
For the convenience of installation, a straight groove is formed on the second plug screw 102.
Wherein, in order to enhance the sealing effect of the pressure sensor seat 12 and the cylinder 11, the installation plane between the two is set to be a plane.
In order to facilitate installation, a straight groove is formed in the large end face of the outer side of the guide sleeve 4.
Wherein, an oil inlet and an oil return opening are arranged on the cylinder bottom 8.
Wherein, the steel pipe 6 is connected with one oil port on the cylinder barrel 11 and the cylinder bottom 8 in a welding mode.
Wherein, the oil liquid in the front cavity is connected with an oil port on the cylinder bottom 8 through a steel pipe 6.
Wherein, two hydraulic fluid ports on the cylinder bottom 8 set up to stagger certain angle in the vertical direction, are convenient for the installation of coupling.
Wherein, the piston rod end of the integral piston 2 at the outer side is connected with the trunnion 1 through threads, and the trunnion 1 is locked through a jackscrew 14.
Such cylinders may be used on other equipment if installation space is limited or other specific requirements are met.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (10)
1. A micro-hydraulic cylinder, comprising: the piston comprises a cylinder barrel (11), an integral piston (2), a first screw plug (101), a second screw plug (102) and a cylinder bottom (8);
the cylinder bottom (8) is arranged at one end of the cylinder barrel (11) and connected in a welding mode, the guide sleeve (4) is connected at the other end of the cylinder barrel in a threaded mode, and the integral piston (2) is arranged in the guide sleeve (4) in a penetrating mode;
the guide sleeve (4) guides the integral piston (2) on one hand, and is connected with the internal thread of the cylinder barrel (11) to play a role of a cylinder cover on the other hand; a first O-shaped sealing ring (51) is arranged between the outer wall of the guide sleeve (4) and the inner wall of the cylinder barrel (11); an AY-shaped dustproof ring (3) and a Y-shaped sealing ring (13) are arranged between the inner wall of the guide sleeve (4) and the outer wall of the piston rod of the integral piston (2);
a sealing element mounting groove is formed in the outer periphery of the piston head, located on the inner side of the integral piston (2), a combined sealing ring is arranged in the sealing element mounting groove, and the combined sealing ring comprises two check rings (7) and a second O-shaped sealing ring (52);
a mounting hole of a pressure sensor is formed in the cylinder bottom (8), and a first pressure sensor (91) is arranged in the mounting hole and pressed by a first screw plug (101);
the other end of the cylinder barrel (11) opposite to the end provided with the cylinder bottom (8) is provided with a pressure sensor seat (12), and the second pressure sensor (92) is arranged in the pressure sensor seat (12) and pressed by a second screw plug (102).
2. A miniature hydraulic cylinder as set forth in claim 1 wherein said first plug (101) has a slotted groove therein.
3. The micro-hydraulic cylinder as recited in claim 1, wherein the second plug (102) has a slotted groove.
4. A micro-hydraulic cylinder as claimed in claim 1, characterized in that, in order to increase the sealing effect of the pressure sensor mount (12) and the cylinder tube (11), the mounting plane between the two is arranged as a plane.
5. A miniature hydraulic cylinder as set forth in claim 1, wherein said guide sleeve (4) is slotted on its outer large end surface.
6. The micro hydraulic cylinder according to claim 1, wherein the cylinder bottom (8) is provided with an oil inlet and an oil return port.
7. A miniature hydraulic cylinder as set forth in claim 6 wherein said cylinder barrel (11) is connected to an oil port on the cylinder bottom (8) by welding through a steel tube (6).
8. A miniature hydraulic cylinder as set forth in claim 7 wherein the oil in the front chamber is connected to an oil port in the bottom (8) of the cylinder through a steel tube (6).
9. The micro hydraulic cylinder according to claim 6, wherein the two oil ports on the cylinder bottom (8) are arranged to be vertically staggered by a certain angle, so as to facilitate the installation of the pipe joint.
10. A microcylinder according to claim 1, wherein the trunnion (1) is locked by a jackscrew (14) by screwing the trunnion (1) to the piston rod end of the integral piston (2) on the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921936102.9U CN211501170U (en) | 2019-11-11 | 2019-11-11 | Miniature hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921936102.9U CN211501170U (en) | 2019-11-11 | 2019-11-11 | Miniature hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501170U true CN211501170U (en) | 2020-09-15 |
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ID=72409149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921936102.9U Active CN211501170U (en) | 2019-11-11 | 2019-11-11 | Miniature hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211501170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017416A (en) * | 2021-11-02 | 2022-02-08 | 浙江科力车辆控制系统有限公司 | Unlocking device and lightweight hydraulic lock unlocking oil cylinder |
-
2019
- 2019-11-11 CN CN201921936102.9U patent/CN211501170U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017416A (en) * | 2021-11-02 | 2022-02-08 | 浙江科力车辆控制系统有限公司 | Unlocking device and lightweight hydraulic lock unlocking oil cylinder |
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