CN220134337U - Novel high-efficient pneumatic cylinder - Google Patents
Novel high-efficient pneumatic cylinder Download PDFInfo
- Publication number
- CN220134337U CN220134337U CN202320793648.3U CN202320793648U CN220134337U CN 220134337 U CN220134337 U CN 220134337U CN 202320793648 U CN202320793648 U CN 202320793648U CN 220134337 U CN220134337 U CN 220134337U
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- Prior art keywords
- end cover
- rear end
- ring
- cylinder barrel
- piston rod
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- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 20
- 239000010720 hydraulic oil Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Actuator (AREA)
Abstract
The utility model discloses a novel efficient hydraulic cylinder, which comprises a cylinder barrel and a piston rod; the front end cover and the rear end cover are respectively sleeved on two sides of the cylinder barrel and are fixed through a cylinder barrel flange; a central rod is arranged at the center of the rear end cover, one end of the central rod extends out of the rear end cover, a sensor is arranged on the central rod positioned at the outer side of the rear end cover, and the periphery of the sensor is wrapped and fixed through a rear lug; an O-shaped ring is arranged on the contact surface between the rear end cover and the nut; the rear end cover extends into the cylinder barrel to form a protruding column, a first cavity and a second cavity are arranged in the inner diameter surface of the protruding column, and a floating ring is arranged in the second cavity; the piston rod is sleeved on a central rod in the cylinder barrel, and a buffer plunger, a piston and a ring magnet are sequentially arranged on one side of the piston rod, which is close to the rear end cover, from left to right. The floating ring is adopted for sealing, so that the running speed of the hydraulic cylinder is effectively improved; and by adopting a plurality of groups of sealing rings and supporting rings, the supporting force and the sealing performance of the hydraulic cylinder are greatly improved.
Description
Technical Field
The utility model relates to the field of hydraulic cylinder manufacturing, in particular to a novel efficient hydraulic cylinder.
Background
The hydraulic cylinder displacement sensor is a high-precision sensor, can monitor the position change of the hydraulic cylinder in real time, and converts the change into an electric signal to be output; this information can be used to control and automatically perform cylinder movements with extremely high accuracy and reliability.
At present, gaps exist between the tail end of a piston rod and an end cover in the traditional hydraulic cylinder, and when hydraulic oil is input, more hydraulic oil enters the gaps, so that the working efficiency of a hydraulic system is low, and the energy conversion efficiency is not high; meanwhile, the hydraulic transmission adopts oil liquid as a working medium, so that the hydraulic transmission is easy to leak into a sensor cavity after long-term use, thereby damaging components and greatly reducing the service life.
Disclosure of Invention
The utility model provides a novel efficient hydraulic cylinder with good sealing performance, high supporting force and high efficiency.
The purpose of the utility model is realized in the following way: a novel high-efficiency hydraulic cylinder comprises a cylinder barrel and a piston rod;
the front end cover and the rear end cover are respectively sleeved on two sides of the cylinder barrel and are fixed through a cylinder barrel flange; an inner hexagonal cone end set screw is arranged between the cylinder barrel flange and the cylinder barrel contact surface; the outer side of the front end cover is provided with an inner hexagonal cylindrical head screw; a center rod is arranged at the center of the rear end cover, one end of the center rod extends out of the rear end cover, a sensor is arranged on the center rod positioned at the outer side of the rear end cover, the center rod positioned at the outer side of the rear end cover is rotationally fixed with the rear end cover through a nut, and the periphery of the sensor is wrapped and fixed through a rear lug; an O-shaped ring is arranged on the contact surface between the rear end cover and the nut; the rear end cover extends into the cylinder barrel and is provided with a protruding column, a first cavity and a second cavity are arranged in the inner diameter surface of the protruding column, and a floating ring is arranged in the second cavity;
the piston rod is sleeved on a center rod in the cylinder barrel, and a buffer plunger, a piston and a ring magnet are sequentially arranged on one side of the piston rod, which is close to the rear end cover, from left to right.
Preferably, the end part of the piston rod, which is close to the rear end cover, is provided with a groove, the annular magnet is arranged in the groove, a gasket is arranged between the annular magnet and the groove, and the annular magnet is fixed with the end part through a screw.
Preferably, the outer diameter surface of the floating ring is provided with a fixed step, an elastic retainer ring is arranged between the fixed step and the second cavity, and the outer end of the elastic retainer ring is embedded into the rear end cover.
Preferably, an introduction chamfer is arranged on one side of the floating ring inner diameter surface close to the piston, a conical part is arranged at the end part of the piston rod close to the rear end cover, and the conical part is in insertion fit with the introduction chamfer.
Preferably, the rear end cover is provided with a second oil port communicated with the first cavity, and the front end cover is provided with a first oil port communicated with the rod cavity
Preferably, a dustproof ring, a sealing ring for a shaft, a supporting ring, a Style seal and a supporting ring are arranged on the contact surface between the front end cover and the piston rod in sequence from left to right; an O-shaped ring is arranged on the contact surface between the front end cover and the cylinder barrel.
Preferably, a supporting ring, a Style seal and a supporting ring are arranged on the contact surface of the rear end cover and the cylinder barrel in sequence from left to right; an O-shaped ring is arranged on the contact surface between the piston rod and the rear end cover
Preferably, the rear ear is provided with a mounting hole.
Compared with the prior art, the utility model has the following advantages:
1. a floating ring is arranged between the end area of the piston rod and the rear end cover, so that the tightness between the end area and the rear end cover is effectively ensured; when the second oil port is filled with oil, less hydraulic oil flows to a sealing area between the end part and the rear end cover in the initial stage due to the sealing effect of the floating ring, and most of the hydraulic oil acts on the end part of the piston rod, so that the running speed of the hydraulic cylinder is improved, the acting speed of the hydraulic cylinder is improved, and the working efficiency of a hydraulic system is further improved;
2. 2 groups of supporting rings are respectively arranged on the front end cover and the rear end cover, so that the bearing of the radial force of the piston rod is greatly improved, and the service life is prolonged;
3. an O-shaped ring is arranged on the contact surface between the rear end cover and the nut, so that the tightness between the rear ear area and the first cavity is improved, hydraulic oil is prevented from leaking into the rear ear, and the sensor is prevented from being invalid;
4. the end parts of the floating ring and the piston rod are subjected to structural optimization, and the end parts of the piston rod can be matched with the floating ring to form sealing.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is an enlarged view of the floating ring joint structure of the present utility model.
Fig. 3 is a schematic view of the external structure of the present utility model.
The cylinder comprises a cylinder barrel 1, a piston rod 2, a groove 201, a conical part 202, a front end cover 3, a first oil port 301, a rear end cover 4, a first cavity 401, a second cavity 402, a second oil port 403, a cylinder barrel flange 5, a hexagonal cone end set screw 6, a hexagonal cylinder head screw 7, a central rod 8, a sensor 9, a nut 10, a rear ear 11, a mounting hole 1101, a 12O-shaped ring 13, a floating ring 1301, a fixed step 1302, a lead-in chamfer, a buffer plunger 14, a piston 15, a ring magnet 16, a gasket 17, a screw 18, a circlip 19, a dust ring 20, a sealing ring 21, a supporting ring 22 and a Style 23.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
It should be noted that, in the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," "overhang," and the like do not denote that the component is required to be absolutely horizontal or overhang, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or communicating between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
1-3, the novel efficient hydraulic cylinder comprises a cylinder barrel 1 and a piston rod 2; the front end cover 3 and the rear end cover 4 are respectively sleeved on two sides of the cylinder barrel 1, and the front end cover 3 and the rear end cover 4 are fixed through a cylinder barrel flange 5; an inner hexagonal cone end set screw 6 is arranged between the contact surface of the cylinder barrel flange 5 and the cylinder barrel 1; the outer side of the front end cover 3 is provided with an inner hexagonal cylindrical head screw 7; a central rod 8 is arranged at the center of the rear end cover 4, one end of the central rod 8 extends out of the rear end cover 4, a sensor 9 is arranged on the central rod positioned at the outer side of the rear end cover 4, the central rod 8 positioned at the outer side of the rear end cover 4 and the rear end cover 4 are rotationally fixed through a nut 10, and the periphery of the sensor 9 is wrapped and fixed through a rear lug 11; an O-shaped ring 12 is arranged on the contact surface between the rear end cover 4 and the nut 10; the rear end cover 4 extends into the cylinder barrel to form a convex column, a first cavity 401 and a second cavity 402 are arranged in the inner diameter surface of the convex column, and a floating ring 13 is arranged in the second cavity 402;
as shown in fig. 1-3, the piston rod 2 is sleeved on the central rod 8 in the cylinder barrel 1, and a buffer plunger 14, a piston 15 and a ring magnet 16 are sequentially arranged on one side of the piston rod 2 near the rear end cover 4 from left to right, so that the buffer plunger can effectively reduce the speed of the piston, and further the piston and the piston rod are protected.
As shown in fig. 1-2, the end of the piston rod 2 near the rear end cover 4 is provided with a groove 201, the ring magnet 16 is arranged in the groove 201, a gasket 17 is arranged between the ring magnet 16 and the groove 201, the ring magnet 16 is fixed with the end through a screw 18, the fixed ring magnet cannot displace, and electromagnetic induction can be realized by the sensor.
As shown in fig. 1-2, the outer diameter surface of the floating ring 13 is provided with a fixed step 1301, an elastic retainer ring 19 is arranged between the fixed step 1301 and the second cavity 402, the outer end of the elastic retainer ring 19 is embedded into the rear end cover 4, and the embedded elastic retainer ring can limit the floating ring, so that the floating ring is ensured not to axially displace.
As shown in fig. 1-2, an introduction chamfer 1302 is arranged on the inner diameter surface of the floating ring 13 near the piston 15, a conical part 202 is arranged at the end part of the piston rod 2 near the rear end cover, the conical part 202 is in insertion fit with the introduction chamfer 1302, and after the introduction chamfer is enlarged, the insertion of the conical part is facilitated, so that the piston rod cannot be inserted due to dimensional errors.
As shown in fig. 1 and 3, the front end cover 3 is provided with a first oil port 301 which is communicated with the rod cavity; the rear end cover 4 is provided with a second oil port 403 communicated with the first cavity, the first oil port is used for oil feeding, the second oil port is used for oil discharging, and the piston rod is contracted inwards; the second oil port is used for oil feeding, the first oil port is used for oil discharging, and the piston rod extends outwards.
As shown in fig. 1, a dust ring 20, a shaft seal ring 21, a support ring 22, a stirling seal 23, and a support ring 22 are provided in this order from left to right on the contact surface between the front end cover 3 and the piston rod 2; an O-shaped ring 12 is arranged on the contact surface between the front end cover 3 and the cylinder barrel 1, and the O-shaped ring and the Style seal are used for improving the tightness of the device.
As shown in fig. 1, a supporting ring 22, a stent seal 23 and a supporting ring 22 are arranged on the contact surface of the rear end cover 4 and the cylinder barrel 1 in sequence from left to right; an O-shaped ring 12 is arranged on the contact surface between the piston rod 2 and the rear end cover 4, and a supporting ring is used for ensuring that the hydraulic cylinder can bear larger load so as to prevent leakage and abnormal abrasion caused by the oil seal working under the eccentric condition.
As shown in fig. 1, the rear ear 11 is provided with a mounting hole 1101, which can be used for lead-out or mounting of components.
The working principle of the utility model is explained as follows: when the second oil port is filled with oil, less hydraulic oil flows to a sealing area between the end part and the rear end cover in the initial stage due to the sealing effect of the floating ring, and most of hydraulic oil acts on the end part of the piston rod, so that the running speed of the hydraulic cylinder is improved, the acting speed of the hydraulic cylinder is improved, and the working efficiency of a hydraulic system is further improved.
The above examples are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. Various modifications and improvements of the technical scheme of the present utility model will fall within the protection scope of the present utility model without departing from the design concept of the present utility model, and the technical content of the present utility model is fully described in the claims.
Claims (8)
1. A novel high-efficiency hydraulic cylinder comprises a cylinder barrel and a piston rod; it is characterized in that the method comprises the steps of,
the front end cover and the rear end cover are respectively sleeved on two sides of the cylinder barrel and are fixed through a cylinder barrel flange; an inner hexagonal cone end set screw is arranged between the cylinder barrel flange and the cylinder barrel contact surface; the outer side of the front end cover is provided with an inner hexagonal cylindrical head screw; a center rod is arranged at the center of the rear end cover, one end of the center rod extends out of the rear end cover, a sensor is arranged on the center rod positioned at the outer side of the rear end cover, the center rod positioned at the outer side of the rear end cover is rotationally fixed with the rear end cover through a nut, and the periphery of the sensor is wrapped and fixed through a rear lug; an O-shaped ring is arranged on the contact surface between the rear end cover and the nut; the rear end cover extends into the cylinder barrel and is provided with a protruding column, a first cavity and a second cavity are arranged in the inner diameter surface of the protruding column, and a floating ring is arranged in the second cavity;
the piston rod is sleeved on a center rod in the cylinder barrel, and a buffer plunger, a piston and a ring magnet are sequentially arranged on one side of the piston rod, which is close to the rear end cover, from left to right.
2. The novel efficient hydraulic cylinder according to claim 1, wherein the end part of the piston rod close to the rear end cover is provided with a groove, the annular magnet is arranged in the groove, a gasket is arranged between the annular magnet and the groove, and the annular magnet is fixed with the end part through a screw.
3. The novel efficient hydraulic cylinder according to claim 1, wherein the outer diameter surface of the floating ring is provided with a fixed step, an elastic retainer ring is arranged between the fixed step and the second cavity, and the outer end of the elastic retainer ring is embedded into the rear end cover.
4. A novel efficient hydraulic cylinder according to claim 3, wherein the floating ring inner diameter surface is provided with an introduction chamfer on one side of the piston, the end of the piston rod near the rear end cover is provided with a conical part, and the conical part is in insertion fit with the introduction chamfer.
5. The novel efficient hydraulic cylinder according to claim 1, wherein the rear end cover is provided with a second oil port communicated with the first cavity, and the front end cover is provided with a first oil port communicated with the rod cavity.
6. The novel efficient hydraulic cylinder according to claim 1, wherein a dustproof ring, a sealing ring for a shaft, a supporting ring, a Style seal and a supporting ring are sequentially arranged on the contact surface between the front end cover and the piston rod from left to right; an O-shaped ring is arranged on the contact surface between the front end cover and the cylinder barrel.
7. The novel efficient hydraulic cylinder according to claim 1, wherein a supporting ring, a Style seal and a supporting ring are sequentially arranged on the contact surface of the rear end cover and the cylinder barrel from left to right; an O-shaped ring is arranged on the contact surface between the piston rod and the rear end cover.
8. The novel efficient hydraulic cylinder according to claim 1, wherein the rear lugs are provided with mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320793648.3U CN220134337U (en) | 2023-04-12 | 2023-04-12 | Novel high-efficient pneumatic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320793648.3U CN220134337U (en) | 2023-04-12 | 2023-04-12 | Novel high-efficient pneumatic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220134337U true CN220134337U (en) | 2023-12-05 |
Family
ID=88955646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320793648.3U Active CN220134337U (en) | 2023-04-12 | 2023-04-12 | Novel high-efficient pneumatic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220134337U (en) |
-
2023
- 2023-04-12 CN CN202320793648.3U patent/CN220134337U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |