CN211288090U - Cylinder body structure capable of self-balancing internal pressure - Google Patents
Cylinder body structure capable of self-balancing internal pressure Download PDFInfo
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- CN211288090U CN211288090U CN201921205008.6U CN201921205008U CN211288090U CN 211288090 U CN211288090 U CN 211288090U CN 201921205008 U CN201921205008 U CN 201921205008U CN 211288090 U CN211288090 U CN 211288090U
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Abstract
The utility model discloses a cylinder body structure of self-balancing internal pressure, including the cylinder subassembly, the cylinder subassembly includes from last cylinder head, cylinder block, lower cylinder head that set gradually extremely down, be equipped with the exhaust chamber between cylinder head and the last cylinder head, be equipped with slider groove and compression spring hole on the cylinder block, be equipped with the exhaust hole that communicates with the exhaust chamber on last cylinder head, its characterized in that: the pressure spring hole is a closed hole, an airflow channel communicated with the exhaust cavity is arranged on the upper cylinder cover, and the airflow channel is communicated with the pressure spring hole. The utility model has the advantages that the upper cylinder cover is provided with the airflow channel communicated with the exhaust cavity, so that the pressures at the two ends of the slip sheet are equivalent, the pressures acting at the two ends of the slide block are offset, and the slip sheet is tightly attached to the rotor by the pressure spring; high-temperature and high-pressure gas generated by the compression of the cylinder is directly discharged out of the compressor through the exhaust pipe, and the temperature in the shell is reduced.
Description
Technical Field
The utility model relates to a compressor technical field especially relates to a cylinder body structure of self-balancing internal pressure.
Background
The existing rotor type compressor pump body is partially welded on a shell, a motor is installed on the shell in an interference fit mode through a shrink fit mode, a compressor air inlet pipe is directly connected with an air suction hole of the pump body to form a low-pressure end, and an exhaust high-pressure end is arranged inside the whole shell. The following disadvantages exist: 1. the shell is provided with an exhaust high-pressure end, and high-temperature gas can increase the temperature of the motor, so that the efficiency and the reliability of the compressor are reduced; 2. the pump body, the motor part and the shell form a whole, so that the compressor vibrates greatly; 3. the noise is high due to the non-air-suction silencing cavity and the air-exhaust buffering cavity; 4. because the casing is provided with an exhaust high-pressure end, the refrigerator can not be directly applied to a refrigerator and a freezer with low back pressure. The existing novel rotor compressor has the advantages that after a refrigerant is compressed by a cylinder, high-temperature and high-pressure gas directly enters an exhaust pipe after passing through a cylinder cover and is not communicated with the interior of a compressor shell. A self-balancing internal pressure cylinder structure is now required to balance the pressure acting on the two ends of the slide.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the not enough that exists to above-mentioned prior art provides a simple structure, can balance the cylinder body structure of the self-balancing internal pressure of slider both ends pressure.
The utility model discloses the technical scheme who adopts does: the utility model provides a cylinder block structure of self-balancing internal pressure, includes the cylinder subassembly, the cylinder subassembly includes from last cylinder head, upper cylinder cap, cylinder block, lower cylinder cap that set gradually extremely down, be equipped with the exhaust chamber between cylinder head and the upper cylinder cap, be equipped with slider groove and pressure spring hole on the cylinder block, be equipped with the exhaust hole that communicates with the exhaust chamber on the upper cylinder cap, its characterized in that: the pressure spring hole is a closed hole, an airflow channel communicated with the exhaust cavity is arranged on the upper cylinder cover, and the airflow channel is communicated with the pressure spring hole.
According to the technical scheme, the airflow channel is an axial through hole arranged on the upper cylinder cover.
According to the technical scheme, the lower ends of the sliding block groove and the compression spring hole are sealed through the upper end surface of the lower cylinder cover, and the compression spring hole is sealed through the plug.
According to the technical scheme, the upper cylinder cover is provided with the exhaust valve mounting groove, and the exhaust valve block, the exhaust limiting plate and the limiting compensation block are sequentially clamped in the exhaust valve mounting groove from bottom to top.
According to the technical scheme, the two sides of the exhaust valve mounting groove are symmetrically provided with arc-shaped limiting grooves protruding outwards, and the arc-shaped limiting grooves are used for clamping the end parts of the exhaust valve plate, the exhaust limiting plate and the limiting compensation block.
According to the technical scheme, exhaust grooves are further arranged on two sides of the exhaust valve mounting groove. According to the technical scheme, a sealing gasket is arranged between the cylinder cover and the upper cylinder cover and is pressed and sealed through a fastening piece. According to the technical scheme, an exhaust cover is fixed on one side of the cylinder cover, and an exhaust channel of the exhaust cover is respectively communicated with the exhaust cavity and the exhaust pipeline.
According to the technical scheme, the upper cylinder cover comprises an upper cylinder cover body, the upper cylinder cover body is provided with an exhaust port, the middle of the upper cylinder cover body is provided with a bearing hole used for being configured with a crankshaft, at least three foot supports are arranged on the periphery of the upper cylinder cover body at intervals, the foot supports extend upwards, the upper end face of each foot support forms a motor mounting face, and a fastener mounting hole is formed.
According to the technical scheme, the foot support comprises a support end face extending from the periphery of the circular upper cylinder cover body to the outer side in the radial direction, the support end face is in smooth transition connection with the periphery of the circular upper cylinder cover body, a support column is arranged on the upper portion of the support end face, a fastener mounting hole used for being connected with a motor is formed in the support column, and a counter bore is formed in the lower portion of the support end face.
The utility model discloses the beneficial effect who gains does:
1. the utility model has the advantages that the upper cylinder cover is provided with the airflow channel communicated with the exhaust cavity, so that the pressures at the two ends of the slip sheet are equivalent, the pressures acting at the two ends of the slide block are offset, and the slip sheet is tightly attached to the rotor by the pressure spring; high-temperature and high-pressure gas generated by the compression of the cylinder is directly discharged out of the compressor through the exhaust pipe, so that the internal temperature of the shell is reduced;
2. the utility model discloses do not change the structure of original rotor compressor, only need to process on last cylinder cap have airflow channel and set up the end cap at the rear end in compression spring hole seal can, do not influence cylinder, last cylinder cap, lower upper cylinder cap major structure, simple structure, processing is convenient.
3. The utility model discloses a bilateral symmetry at discharge valve mounting groove is equipped with convex spacing groove to the outside, and discharge valve piece, exhaust limiting plate and spacing compensation piece all can clamp at convex spacing inslot through the mode that clamps for overall structure has cancelled rivet riveting technology under the condition that does not influence the exhaust clearance size, makes assembly process simplify.
4. The exhaust groove is arranged at the side part of the exhaust valve mounting groove, so that on one hand, exhaust resistance can be reduced, and on the other hand, the exhaust valve plate, the exhaust limiting plate and the limiting compensation block can be clamped and detached conveniently in the assembling process;
5. a sealing gasket is arranged between the cylinder cover and the upper cylinder cover, and is compressed and sealed through a fastening piece, so that the exhaust cavity forms a sealing cavity, the exhausted high-pressure gas is exhausted from the exhaust coil pipe, the high-pressure gas is prevented from leaking to the inner cavity of the shell, and the compression efficiency is further improved.
6. The utility model adds at least three foot supports on the upper cylinder cover, and is connected with the motor through fasteners; the bottom of the upper cylinder cover is arranged on the shell through the pressure spring supporting pin, the spring and the pressure spring supporting block, the motor and the upper cylinder cover are not directly contacted with the shell of the compressor, welding and fixing are not needed, the installation difficulty is reduced, the air gap is single-sided, and the vibration noise of the compressor is effectively reduced through the buffering of the pressure spring.
Drawings
Fig. 1 is a three-dimensional structure diagram of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a sectional view taken along line a-a in fig. 2.
Fig. 4 is a perspective view of the upper cylinder head and the cylinder block according to the present invention.
Fig. 5 is a front view of the assembly of the upper cylinder head and cylinder block of the present invention.
Fig. 6 is a sectional view taken along line B-B in fig. 5.
Fig. 7 is a schematic structural view of the upper cylinder cover of the present invention.
Fig. 8 is the assembly schematic diagram of the exhaust valve mounting groove and the limiting compensation block of the upper cylinder cover of the present invention.
Fig. 9 is the assembly diagram of the exhaust valve mounting groove and the exhaust valve plate of the upper cylinder cover of the present invention.
Fig. 10 is the utility model discloses an exhaust valve piece, exhaust limiting plate and spacing compensation block assembly explosion sketch map.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-6, the present embodiment provides a cylinder block structure with self-balancing internal pressure, which includes a cylinder assembly, the cylinder assembly includes a cylinder head 1, an upper cylinder cover 2, a cylinder block 3, and a lower cylinder cover 4, which are sequentially disposed from top to bottom, an exhaust cavity 5 is disposed between the cylinder head 1 and the upper cylinder cover 2, an exhaust hole 7 communicated with the exhaust cavity is disposed on the upper cylinder cover 2, an exhaust cover 10 is disposed on one side of the cylinder head 1, and the exhaust cover 10 is fixed on the cylinder head 1 by an exhaust cover screw 11. The exhaust channel of the exhaust cover is respectively communicated with the exhaust cavity and an exhaust pipeline (not shown in the figure). The cylinder block is provided with a slide block groove and a pressure spring hole 8, a slide block is configured in the slide block groove, a pressure spring is arranged in the slide block and the pressure spring hole 8 and is connected with the rear side of the slide block side, the front side of the slide block is always contacted with the outer circumferential surface of the eccentric rotor and reciprocates in the slide block groove along the radial direction of the rotor, the pressure spring hole 8 is a closed hole, the upper cylinder cover 2 is provided with an airflow channel 6 communicated with the exhaust cavity, and the airflow channel 6 is communicated with the pressure spring hole 7.
The airflow channel 6 is an axial through hole arranged on the upper cylinder cover 2. The lower ends of the slider grooves and the compression spring holes are sealed through the upper end surface of the lower cylinder cover 4, and the compression spring holes are sealed through plugs 9.
The utility model has the advantages that the upper cylinder cover is provided with the airflow channel 6 communicated with the exhaust cavity, so that the pressures at the two ends of the slide block are equivalent, the pressures acting at the two ends of the slide block are offset, and the slide sheet is tightly attached to the rotor by the pressure spring; high-temperature and high-pressure gas generated by the compression of the cylinder is directly discharged out of the compressor through the exhaust pipe, so that the internal temperature of the shell is reduced; just the utility model discloses do not change the structure of original rotor compressor, only need to process on last cylinder cap have airflow channel and set up the end cap at the rear end in compression spring hole and seal can, do not influence cylinder, last cylinder cap, lower upper cylinder cap major structure, simple structure, processing is convenient.
As shown in fig. 7-10, an exhaust valve installation groove 202 is formed on the upper cylinder cover, and an exhaust valve plate 14, an exhaust limiting plate 13 and a limiting compensation block 12 are clamped in the exhaust valve installation groove 202 from bottom to top in sequence. The exhaust valve plate 14 is fixed through the limiting plate 13, the opening size of the valve plate is limited, the reliability of the valve plate is guaranteed, the positioning block 1202 is arranged on the limiting compensation block 12, the limiting groove 1301 is formed in the exhaust limiting plate 13, and the positioning block 1202 and the limiting groove 1301 are matched to position the limiting plate 13. In addition, arc-shaped limiting grooves 207 which protrude outwards are symmetrically arranged on two sides of the exhaust valve mounting groove, the arc-shaped limiting grooves 207 are used for clamping an end part 1401 of the exhaust valve plate, an end part 1301 of the exhaust limiting plate and an end part 1201 of the limiting compensation block, so that the exhaust valve plate, the exhaust limiting plate and the limiting compensation block are clamped in the exhaust valve mounting groove, the whole structure is free of rivet riveting technology under the condition that the size of an exhaust clearance is not influenced, and the assembly technology is simplified.
The utility model discloses in, exhaust groove 208 has still been installed to the both sides of discharge valve mounting groove 202, can reduce the exhaust resistance on the one hand, and on the other hand can be so that exhaust valve piece, exhaust limiting plate and spacing compensation piece be convenient for clamp and dismantle in assembling process.
In this embodiment, a sealing washer is installed between the cylinder cover and the upper cylinder cover, and the sealing washer is compressed and sealed by a screw 15, so that the exhaust cavity forms a sealing cavity, the exhausted high-pressure gas is exhausted from the exhaust coil pipe, the high-pressure gas is prevented from leaking to the inner cavity of the shell, and the compression efficiency is further improved.
Specifically, as shown in fig. 7, the upper cylinder cover includes an upper cylinder cover body 203, an exhaust port 202 is provided on the upper cylinder cover body 203, a bearing hole 201 for being configured with a crankshaft is provided in the middle of the upper cylinder cover body, at least three foot supports 204 are provided around the upper cylinder cover body at intervals, the foot supports extend upward, the upper end surfaces of the foot supports form a motor mounting surface, and fastener mounting holes 206 are provided, and the upper cylinder cover is connected with a motor through a fastener 5.
In this embodiment, the specific structure of the upper cylinder cover is as shown in fig. 7, and 4 foot supports 204 are uniformly distributed at intervals along the circumferential direction of the upper cylinder cover body. The foot support comprises a support end surface 204a which extends from the circumference of the circular upper cylinder cover body to the outer side in the radial direction, the support end surface 204a is in smooth transition connection with the circumference of the circular upper cylinder cover body, and the support end surface 204a and the end surface of the upper cylinder cover body 203 are on the same horizontal plane. A support column 204b is provided on the upper portion of the support end surface, a fastener mounting hole 206 for connection with a motor is provided on the support column 204b, and a counter bore 205 is provided on the lower portion of the support end surface. In this embodiment, the supporting column 204b may be a cylinder, or a conical column, a triangular prism, or a polygonal column with an outer diameter gradually shrinking upwards, and the specific shape may be selected and designed according to actual needs.
The bottom of the upper cylinder cover 2 is arranged on the shell (the shell is omitted in the figure) through the pressure spring supporting pin, the spring 16 and the pressure spring supporting block, the motor and the upper cylinder cover are not directly contacted with the shell of the compressor, welding and fixing are not needed, the installation difficulty is reduced, the single side of an air gap is reduced, the vibration noise of the compressor is effectively reduced through the buffering of the pressure spring, the structure is simplified, the structure of the whole compressor is more compact, and the strength is better.
Claims (10)
1. The utility model provides a cylinder block structure of self-balancing internal pressure, includes the cylinder subassembly, the cylinder subassembly includes from last cylinder head, upper cylinder cap, cylinder block, lower cylinder cap that set gradually extremely down, be equipped with the exhaust chamber between cylinder head and the upper cylinder cap, be equipped with slider groove and pressure spring hole on the cylinder block, be equipped with the exhaust hole that communicates with the exhaust chamber on the upper cylinder cap, its characterized in that: the pressure spring hole is a closed hole, an airflow channel communicated with the exhaust cavity is arranged on the upper cylinder cover, and the airflow channel is communicated with the pressure spring hole.
2. The self-balancing internal pressure cylinder structure of claim 1, wherein: the airflow channel is an axial through hole arranged on the upper cylinder cover.
3. The self-balancing internal pressure cylinder structure of claim 1 or 2, wherein: the lower ends of the slider grooves and the compression spring holes are sealed through the upper end surface of the lower cylinder cover, and the compression spring holes are sealed through the plugs.
4. The self-balancing internal pressure cylinder structure of claim 1 or 2, wherein: an exhaust valve mounting groove is formed in the upper cylinder cover, and an exhaust valve block, an exhaust limiting plate and a limiting compensation block are sequentially clamped in the exhaust valve mounting groove from bottom to top.
5. The self-balancing internal pressure cylinder structure of claim 4, wherein: arc-shaped limiting grooves protruding outwards are symmetrically arranged on two sides of the exhaust valve mounting groove and are used for clamping the end parts of the exhaust valve plate, the exhaust limiting plate and the limiting compensation block.
6. The self-balancing internal pressure cylinder structure of claim 4, wherein: and exhaust grooves are also arranged on two sides of the exhaust valve mounting groove.
7. The self-balancing internal pressure cylinder structure of claim 1 or 2, wherein: and a sealing gasket is arranged between the cylinder cover and the upper cylinder cover and is pressed and sealed by a fastener.
8. The self-balancing internal pressure cylinder structure of claim 1 or 2, wherein: an exhaust cover is fixed on one side of the cylinder cover, and an exhaust channel of the exhaust cover is respectively communicated with the exhaust cavity and the exhaust pipeline.
9. The self-balancing internal pressure cylinder structure of claim 1 or 2, wherein: the upper cylinder cover comprises an upper cylinder cover body, an exhaust port is formed in the upper cylinder cover body, a bearing hole used for being configured with a crankshaft is formed in the middle of the upper cylinder cover body, at least three foot supports are arranged on the periphery of the upper cylinder cover body at intervals, the foot supports extend upwards, and the upper end faces of the foot supports form a motor mounting face and are provided with fastener mounting holes.
10. The self-balancing internal pressure cylinder structure of claim 9, wherein: the foot support comprises a support end face extending from the periphery of the circular upper cylinder cover body to the outer side in the radial direction, the support end face is in smooth transition connection with the periphery of the circular upper cylinder cover body, a support column is arranged on the upper portion of the support end face, a fastener mounting hole used for being connected with a motor is formed in the support column, and a counter bore is formed in the lower portion of the support end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921205008.6U CN211288090U (en) | 2019-07-29 | 2019-07-29 | Cylinder body structure capable of self-balancing internal pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921205008.6U CN211288090U (en) | 2019-07-29 | 2019-07-29 | Cylinder body structure capable of self-balancing internal pressure |
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| Publication Number | Publication Date |
|---|---|
| CN211288090U true CN211288090U (en) | 2020-08-18 |
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| CN201921205008.6U Active CN211288090U (en) | 2019-07-29 | 2019-07-29 | Cylinder body structure capable of self-balancing internal pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360115A (en) * | 2019-07-29 | 2019-10-22 | 黄石东贝电器股份有限公司 | A kind of housing structure of self-balancing internal pressure |
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2019
- 2019-07-29 CN CN201921205008.6U patent/CN211288090U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360115A (en) * | 2019-07-29 | 2019-10-22 | 黄石东贝电器股份有限公司 | A kind of housing structure of self-balancing internal pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210610 Address after: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Huangshi City, Hubei Province Patentee after: Huangshi Dongbei Compressor Co.,Ltd. Address before: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Hubei Province Patentee before: Huangshi Dongbei Electrical Appliance Co.,Ltd. |
|
| TR01 | Transfer of patent right |