CN215980208U - Double-screw swing servo cylinder - Google Patents
Double-screw swing servo cylinder Download PDFInfo
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- CN215980208U CN215980208U CN202121517147.XU CN202121517147U CN215980208U CN 215980208 U CN215980208 U CN 215980208U CN 202121517147 U CN202121517147 U CN 202121517147U CN 215980208 U CN215980208 U CN 215980208U
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Abstract
The utility model discloses a double-helix swinging servo cylinder, which belongs to the technical field of electro-hydraulic servo tests and comprises a cylinder body, a rotating shaft and a piston, wherein the rotating shaft is rotatably connected to the cylinder body, the piston is positioned between the rotating shaft and the cylinder body, the inner side and the outer side of the piston are respectively provided with a left screw pair and a right screw pair, a rotary sealing ring for a hole and a rotary sealing ring for a shaft are respectively arranged between the piston and the cylinder body as well as between the rotating shaft and the rotating shaft, two ends of the cylinder body are provided with front end covers, wear-resistant belts are arranged on the front end covers, and a wear-resistant rotary ring is arranged at the contact part of the front end covers and the cylinder body. The utility model can control the pressure and flow in the oscillating cylinder body, thereby controlling the output torque of the oscillating shaft and the oscillating speed, enhancing the hardness and the wear resistance of the oscillating shaft by nitriding treatment on the inner surface of the cylinder body, improving the mechanical property of the product, improving the wear resistance of the product and transmitting larger torque.
Description
Technical Field
The utility model relates to the technical field of electro-hydraulic servo testing, in particular to a double-helix swinging servo cylinder.
Background
With the rapid development of intelligent manufacturing in China, particularly, an intelligent robot arm can accurately grab and place an object, and accurately lift and place the object by lifting equipment. The utility model is composed of two pairs of trapezoidal screw pairs, has large swing angle and small occupied space, and is suitable for being installed on a mechanical arm of narrow automatic equipment or small equipment.
However, the prior single-spiral oscillating cylinder only has one spiral pair, the oscillating angle is limited by the requirement of the installation distance, a larger angle cannot be achieved, the oscillating angle and the oscillating speed cannot be controlled more accurately, and the working efficiency is low.
Disclosure of Invention
The embodiment of the utility model provides a double-spiral swinging servo cylinder, which aims to solve the problems that a single-spiral swinging cylinder in the prior art only has one spiral pair, the swinging angle is limited by the requirement of the installation distance, a larger angle cannot be achieved, the swinging angle and the swinging speed cannot be controlled more accurately, and the working efficiency is low.
The embodiment of the utility model adopts the following technical scheme: the utility model provides a servo cylinder of double helix swing, includes cylinder body, rotation axis and piston, the rotation axis rotates and connects on the cylinder body, the piston is located between rotation axis and the cylinder body, the both ends of piston are equipped with left screw pair and right screw pair respectively, be equipped with hole rotary seal and axle rotary seal between piston and cylinder body and the rotation axis respectively, the both ends of cylinder body are equipped with the front end housing, be equipped with wear-resisting area on the front end housing, front end housing and cylinder body contact department are equipped with wear-resisting rotatory ring, both cavities all are equipped with pressure sensor in the cylinder body, be equipped with the dust ring between rotation axis and the cylinder body, still be equipped with rotary seal between rotation axis and the cylinder body, be equipped with the lock ring that supports the piston on the front end housing.
Further, the top of cylinder body is equipped with the valve block, the top of valve block is equipped with servo proportional valve.
Further, the inner surface of the cylinder body is provided with a nitriding position layer.
Further, the piston is made of wear-resistant alloy steel.
Further, the output end of the rotating shaft is of a spline structure.
The embodiment of the utility model adopts at least one technical scheme which can achieve the following beneficial effects:
when the double-helix swinging servo cylinder works, the pressure and the flow in the swinging cylinder body can be controlled, so that the output torque of the swinging shaft and the swinging speed are controlled, the hardness and the wear resistance of the double-helix swinging servo cylinder body are enhanced by nitriding treatment on the inner surface of the cylinder body, the mechanical property of a product is improved, the wear resistance of the product is also improved, and larger torque can be transmitted.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a cross-sectional view of the present invention;
reference numerals: the rotary valve comprises a rotary shaft 1, a piston 2, a dust ring 3, a rotary sealing ring 4, a servo proportional valve 5, a valve block 6, a pressure sensor 7, a rotary sealing ring for holes 8, a support ring 9, a rotary sealing ring for shafts 10, a front end cover 11, a rotary ring 12 and a cylinder body 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a double-spiral oscillating servo cylinder, including a cylinder body 13, a rotating shaft 1 and a piston 2, where the rotating shaft 1 is rotatably connected to the cylinder body 13, the piston 2 is located between the rotating shaft 1 and the cylinder body 13, and two ends of the piston 2 are respectively provided with a left spiral pair and a right spiral pair; the output rotation angle is formed by superposing a left screw pair and a right screw pair, the swing angle is large, the volume space is small, a rotary sealing ring 8 for a hole and a rotary sealing ring 10 for a shaft are respectively arranged between the piston 2 and the cylinder body 13 and the rotating shaft 1, the sealing performance and the wear resistance are strong, two ends of the cylinder body 13 are provided with front end covers 11, the front end covers 11 are provided with wear-resistant belts which play a role in supporting, and the contact part of the front end covers 11 and the cylinder body 13 is provided with a wear-resistant rotary ring 12; the wear resistance of the cylinder is improved, the friction between the cylinder and the cylinder is reduced, the pressure sensors 7 are arranged in two cavities in the cylinder body 13, and the dust ring 3 is arranged between the rotating shaft 1 and the cylinder body 13; preventing some dust and impurities on the surface of the rotating shaft 1 from entering the cylinder body 13, and arranging a rotary sealing ring 4 between the rotating shaft 1 and the cylinder body 13; the rotary sealing ring 4 has a sealing function on the front cylinder body 13, and a supporting ring 9 for supporting the piston 2 is arranged on the front end cover 11; the piston 2 can be ensured to normally operate on the front end cover 11; the output torque is controlled through the detection pressure feedback of the pressure sensor 7, and the switching between high and low speeds and the control of the torque can be realized in the reciprocating swing process of the equipment.
Specifically, a valve block 6 is arranged at the top of the cylinder body 13, and a servo proportional valve 5 is arranged at the top of the valve block 6; the pressure and the flow in the swing cylinder body 13 can be controlled, so that the output torque of the swing shaft and the swing speed can be controlled.
Specifically, the inner surface of the cylinder body 13 is provided with a nitriding layer; the hardness and the wear resistance are enhanced.
Specifically, the piston 2 is made of wear-resistant alloy steel; the mechanical property of the product is improved, and the wear resistance of the product is also improved.
Specifically, the output end of the rotating shaft 1 is in a spline structure; a large torque can be transmitted.
The working principle of the utility model is as follows: when the utility model is used, the pressure and the flow in the oscillating cylinder 13 can be controlled, thereby controlling the output torque of the oscillating shaft and the oscillating speed, the hardness and the wear resistance of the oscillating shaft are enhanced by nitriding treatment on the inner surface of the cylinder, the mechanical property of the product is improved, the wear resistance of the product is also improved, and larger torque can be transmitted.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. A double-helix swinging servo cylinder is characterized by comprising a cylinder body (13), a rotating shaft (1) and a piston (2), wherein the rotating shaft (1) is rotatably connected onto the cylinder body (13), the piston (2) is positioned between the rotating shaft (1) and the cylinder body (13), a left screw pair and a right screw pair are respectively arranged at two ends of the piston (2), a rotary sealing ring (8) for holes and a rotary sealing ring (10) for shafts are respectively arranged between the piston (2) and the cylinder body (13) and the rotating shaft (1), front end covers (11) are arranged at two ends of the cylinder body (13), wear-resistant belts are arranged on the front end covers (11), a wear-resistant rotating ring (12) is arranged at the contact part of the front end covers (11) and the cylinder body (13), pressure sensors (7) are arranged in two cavities in the cylinder body (13), and a dust ring (3) is arranged between the rotating shaft (1) and the cylinder body (13), and a rotary sealing ring (4) is further arranged between the rotary shaft (1) and the cylinder body (13), and a supporting ring (9) for supporting the piston (2) is arranged on the front end cover (11).
2. A double helix oscillating servo cylinder according to claim 1, wherein: the top of cylinder body (13) is equipped with valve block (6), the top of valve block (6) is equipped with servo proportional valve (5).
3. A double helix oscillating servo cylinder according to claim 1, wherein: the inner surface of the cylinder body (13) is provided with a nitriding position layer.
4. A double helix oscillating servo cylinder according to claim 1, wherein: the piston (2) is made of wear-resistant alloy steel.
5. A double helix oscillating servo cylinder according to claim 1, wherein: the output end of the rotating shaft (1) is of a spline structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121517147.XU CN215980208U (en) | 2021-07-05 | 2021-07-05 | Double-screw swing servo cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121517147.XU CN215980208U (en) | 2021-07-05 | 2021-07-05 | Double-screw swing servo cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980208U true CN215980208U (en) | 2022-03-08 |
Family
ID=80517630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121517147.XU Active CN215980208U (en) | 2021-07-05 | 2021-07-05 | Double-screw swing servo cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980208U (en) |
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2021
- 2021-07-05 CN CN202121517147.XU patent/CN215980208U/en active Active
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