CN210660822U - Variable clearance positive displacement cylinder - Google Patents
Variable clearance positive displacement cylinder Download PDFInfo
- Publication number
- CN210660822U CN210660822U CN201921512228.3U CN201921512228U CN210660822U CN 210660822 U CN210660822 U CN 210660822U CN 201921512228 U CN201921512228 U CN 201921512228U CN 210660822 U CN210660822 U CN 210660822U
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- Prior art keywords
- clearance
- cylinder
- groove
- adjusting device
- positive displacement
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 210000005056 cell body Anatomy 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
The utility model discloses a variable clearance positive displacement cylinder, which relates to the technical field of cylinders and comprises a cylinder body, wherein a cylinder inner chamber is arranged in the cylinder body, a plurality of air volume adjusting devices are arranged on the cylinder body, each air volume adjusting device comprises a cylinder cover arranged on the cylinder and an adjusting device arranged on the cylinder cover, a plurality of groove bodies are arranged on the cylinder cover, air vents penetrating through the cylinder cover are arranged at the bottom of each groove body, the groove bodies are communicated with the cylinder inner chamber through the air vents, the inner wall of each groove body is connected with the adjusting device, and the adjusting device is used for blocking the air vents; the utility model has the advantages of convenient use, convenient air volume adjustment, etc.
Description
Technical Field
The utility model relates to a technical field of cylinder, in particular to variable clearance positive displacement cylinder.
Background
The existing cylinder air volume adjusting mode is frequency conversion adjusting and unloading valve adjusting, under the working condition that the flow range is wide and the change is frequent, the frequency conversion adjusting is most ideal, the limit of the unloading air volume adjusting range is too large, only 50% of the air volume adjusting range is limited, under the working condition that the flow range is small but needs to be adjusted, the frequency conversion cost is too high, and the unloading valve is not suitable for use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a variable clearance positive displacement cylinder is provided for solve the problem that the waste heat utilization equipment heat energy of the prior art compressor of description runs off big, intelligent degree is low among the background art.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a variable clearance positive displacement cylinder, includes the cylinder body, this internal cylinder inner chamber that is provided with of cylinder, be provided with a plurality of tolerance adjusting device on the cylinder body, tolerance adjusting device is including setting up cylinder cap on the cylinder and setting up the adjusting device on the cylinder cap, be provided with a plurality of cell bodies on the cylinder cap, the bottom of cell body is provided with the air vent that runs through the cylinder cap, and the cell body passes through the air vent intercommunication with cylinder inner chamber, the inner wall and the adjusting device of cell body are connected, and this adjusting device is used for blockking up the air vent.
Preferably: the adjusting device comprises a clearance cylinder seat arranged on the inner wall of the groove body and a clearance cylinder body arranged on the clearance cylinder seat, the clearance cylinder seat is provided with a cylinder seat groove, one surface of the clearance cylinder body opposite to the cylinder seat groove is provided with a clearance groove, the cylinder seat groove and the clearance groove form a sealed clearance inner cavity, the bottom of the clearance groove is provided with an instrument air inlet hole penetrating through the clearance cylinder body, the bottom of the cylinder seat groove is provided with a sliding hole penetrating through the clearance cylinder seat, a clearance piston is arranged in the clearance groove in a sliding way, a top post penetrating through the sliding hole is arranged in the sliding hole in a sliding way, the outer wall of the top pillar is hermetically connected with the inner wall of the sliding hole, one end of the top pillar extending into the clearance cavity is connected with the clearance piston, a spring is sleeved at one end of the top pillar, which extends into the clearance cavity, one end of the spring is connected with the clearance piston, and the other end of the spring is connected with the bottom of the cylinder seat groove; and the top column and the vent hole are on the same straight line.
Preferably: the side of the top pillar, which is opposite to the vent hole, is an arc surface.
Preferably: and a first sealing ring is arranged at the intersection of the clearance piston and the inner wall of the clearance groove.
Preferably: and a second sealing ring is arranged at the intersection of the top column and the inner wall of the sliding hole.
Preferably: each instrument air inlet is respectively connected with a plurality of externally connected electromagnetic valve instrument air inlets, and each electromagnetic valve instrument air inlet is controlled to be opened and closed through an independent PLC.
The beneficial effect of adopting above technical scheme is:
when the electromagnetic valve instrument wind power generation device is used, the PLC controller controls the electromagnetic valve instrument wind to be opened and closed, when the electromagnetic valve instrument wind is opened, the instrument wind enters the clearance inner cavity through the instrument wind inlet hole, so that the clearance piston is pushed, and the top column moves and blocks the vent hole; when the electromagnetic valve instrument is turned off, the clearance piston returns to the original position under the action of the spring, so that the air quantity is adjusted.
Drawings
Fig. 1 is a schematic structural view of a variable clearance displacement cylinder according to the present invention.
Fig. 2 is a schematic structural diagram of the adjusting device of the present invention.
Fig. 3 is a schematic diagram of the mechanism of the cylinder head of the present invention.
Wherein: the air cylinder comprises an air cylinder body 10, an air cylinder inner cavity 11, an air quantity adjusting device 20, a cylinder cover 30, a groove body 31, a vent hole 32, an adjusting device 40, a clearance cylinder body 41, a clearance groove 42, an instrument air inlet hole 43, a clearance piston 44, a top column 45, a spring 46, a clearance cylinder seat 47, a cylinder seat groove 48 and a sliding hole 49.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
An embodiment, like [ fig. 1-3 ], in this embodiment, a variable clearance positive displacement cylinder includes a cylinder body 10, a cylinder inner chamber 11 is provided in the cylinder body 10, a plurality of air volume adjusting devices 20 are provided on the cylinder body 10, the air volume adjusting devices 20 include a cylinder cover 30 provided on the cylinder 10 and an adjusting device 40 provided on the cylinder cover 30, a plurality of groove bodies 31 are provided on the cylinder cover 30, the bottom of the groove body 31 is provided with a vent hole 32 penetrating through the cylinder cover 30, and the groove body 31 is communicated with the cylinder inner chamber 11 through the vent hole 32, the inner wall of the groove body 31 is connected with the adjusting device 40, and the adjusting device 40 is used for blocking the vent hole 32.
Preferably: the adjusting device 40 comprises a clearance cylinder seat 47 arranged on the inner wall of the groove body 31 and a clearance cylinder body 41 arranged on the clearance cylinder seat 47, a cylinder seat groove 48 is arranged on the clearance cylinder seat 47, a clearance groove 42 is arranged on one surface, opposite to the cylinder seat groove 48, of the clearance cylinder body 41, the cylinder seat groove 42 and the clearance groove 48 form a sealed clearance inner cavity, an instrument air inlet hole 43 penetrating through the clearance cylinder body 41 is arranged at the bottom of the clearance groove 42, a sliding hole 49 penetrating through the clearance cylinder seat 47 is arranged at the bottom of the cylinder seat groove 47, a clearance piston 44 is arranged in the clearance groove 47 in a sliding mode, a top pillar 45 penetrating through the sliding hole 49 is arranged in the sliding hole 49 in a sliding mode, the outer wall of the top pillar 45 is connected with the inner wall of the sliding hole 49 in a sealing mode, one end, extending into the clearance inner cavity, of the top pillar 45 is connected with the clearance piston 44, and one end, extending into the clearance inner cavity, one end of the spring 46 is connected with the clearance piston 44, and the other end of the spring 46 is connected with the bottom of the cylinder seat groove 48; and the top pillar 45 is in line with the vent hole 32.
Preferably: the side of the top pillar 45 opposite to the vent hole 32 is a circular arc surface.
Preferably: a first sealing ring is arranged at the intersection of the clearance piston 44 and the inner wall of the clearance groove 42.
Preferably: and a second sealing ring is arranged at the intersection of the top column 45 and the inner wall of the sliding hole 49.
Preferably: each instrument air inlet 43 is respectively connected with a plurality of externally connected electromagnetic valve instrument air inlets, and each electromagnetic valve instrument air inlet is controlled to be opened and closed through an independent PLC.
The specific implementation manner of this embodiment:
when the device is used, the external PLC is used for controlling the on and off of the external electromagnetic valve instrument wind;
when the PLC opens the electromagnetic valve instrument wind, the instrument wind enters the clearance inner cavity from the instrument wind inlet hole 43, the air pressure entering the clearance inner cavity pushes the clearance piston 44 to move towards the clearance cylinder seat 47, the spring 46 is extruded nearby, and the top pillar 45 is driven to move relative to the clearance cylinder seat 47 until the top pillar 45 blocks the vent hole 32, so that the air inflow of the air cylinder is reduced; when the solenoid instrument wind is off, the spring 46 will be a force applied to the clearance piston 44 away from the clearance cylinder seat 47 by the action of the spring 46, causing the clearance piston 44 to return to its original position.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (6)
1. A variable clearance positive displacement cylinder comprising a cylinder body, characterized in that: this internal cylinder inner chamber that is provided with of cylinder, be provided with a plurality of tolerance adjusting device on the cylinder body, tolerance adjusting device is including setting up cylinder cap on the cylinder and setting up the adjusting device on the cylinder cap, be provided with a plurality of cell bodies on the cylinder cap, the bottom of cell body is provided with the air vent that runs through the cylinder cap, and the cell body passes through the air vent intercommunication with the cylinder inner chamber, the inner wall and the adjusting device of cell body are connected, and this adjusting device is used for blockking up the air vent.
2. The variable clearance positive displacement cylinder according to claim 1, wherein the adjusting device comprises a clearance cylinder seat arranged on the inner wall of the groove body and a clearance cylinder body arranged on the clearance cylinder seat, a cylinder seat groove is arranged on the clearance cylinder seat, a clearance groove is arranged on one surface, opposite to the cylinder seat groove, of the clearance cylinder body, the cylinder seat groove and the clearance groove form a sealed clearance inner cavity, an instrument air inlet hole penetrating through the clearance cylinder body is arranged at the bottom of the clearance groove, a sliding hole penetrating through the clearance cylinder seat is arranged at the bottom of the cylinder seat groove, a clearance piston is arranged in the clearance groove in a sliding manner, a top pillar penetrating through the sliding hole is arranged in the sliding hole in a sliding manner, the outer wall of the top pillar is connected with the inner wall of the sliding hole in a sealing manner, one end, extending into the clearance inner cavity, of the top pillar is connected with the clearance piston, and a spring is sleeved at one end, extending into the clearance inner, one end of the spring is connected with the clearance piston, and the other end of the spring is connected with the bottom of the cylinder seat groove; and the top column and the vent hole are on the same straight line.
3. The variable clearance positive displacement cylinder of claim 2, wherein the face of said post opposite said vent opening is arcuate.
4. A variable clearance positive displacement cylinder according to claim 3, wherein a first seal is provided where the clearance piston meets the inner wall of the clearance groove.
5. The variable clearance positive displacement cylinder of claim 4, wherein a second seal is provided at the intersection of said top post and the inner wall of the sliding bore.
6. The variable clearance positive displacement cylinder according to claim 5, wherein each of said instrument air inlet holes is connected to a plurality of solenoid valve instrument air inlets connected externally, and each of the solenoid valve instrument air inlets is controlled to be opened and closed by a separate PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921512228.3U CN210660822U (en) | 2019-09-11 | 2019-09-11 | Variable clearance positive displacement cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921512228.3U CN210660822U (en) | 2019-09-11 | 2019-09-11 | Variable clearance positive displacement cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210660822U true CN210660822U (en) | 2020-06-02 |
Family
ID=70820436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921512228.3U Expired - Fee Related CN210660822U (en) | 2019-09-11 | 2019-09-11 | Variable clearance positive displacement cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210660822U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012916A (en) * | 2020-08-05 | 2020-12-01 | 加西贝拉压缩机有限公司 | Piston type variable-frequency variable-capacity refrigeration compressor |
| CN112012917A (en) * | 2020-08-05 | 2020-12-01 | 加西贝拉压缩机有限公司 | Compressor variable volume structure with drainage groove |
| CN115016215A (en) * | 2022-05-30 | 2022-09-06 | 重庆工业职业技术学院 | Portable projection device |
-
2019
- 2019-09-11 CN CN201921512228.3U patent/CN210660822U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012916A (en) * | 2020-08-05 | 2020-12-01 | 加西贝拉压缩机有限公司 | Piston type variable-frequency variable-capacity refrigeration compressor |
| CN112012917A (en) * | 2020-08-05 | 2020-12-01 | 加西贝拉压缩机有限公司 | Compressor variable volume structure with drainage groove |
| CN115016215A (en) * | 2022-05-30 | 2022-09-06 | 重庆工业职业技术学院 | Portable projection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 |