CN216111264U - Single-cylinder double-suction exhaust compressor pump body and compressor - Google Patents
Single-cylinder double-suction exhaust compressor pump body and compressor Download PDFInfo
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- CN216111264U CN216111264U CN202121351603.8U CN202121351603U CN216111264U CN 216111264 U CN216111264 U CN 216111264U CN 202121351603 U CN202121351603 U CN 202121351603U CN 216111264 U CN216111264 U CN 216111264U
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Abstract
The utility model provides a single-cylinder double-suction exhaust compressor pump body and a compressor, wherein the compressor pump body comprises: the device comprises a cylinder, a first bearing, a second bearing, a rotating shaft, a first sliding block assembly and a second sliding block assembly; the cylinder is provided with a compression cavity; the rotating shaft sequentially and movably penetrates through the first bearing, the air cylinder and the second bearing; the rotating shaft is provided with a rotor part, the rotor part is positioned in the compression cavity, the rotor part is of a centrosymmetric structure, and the center line of the rotor part and the center line of the rotating shaft are on the same straight line; when the rotating shaft rotates, the rotor part circularly moves in the compression cavity and completes compression. According to the utility model, the rotor part, the first sliding block assembly and the second sliding block assembly are used for separating the compression cavity into the first working cavity and the second working cavity, the first working cavity and the second working cavity can simultaneously perform air intake and compression exhaust, so that vibration generated by uneven stress caused by pressure difference in the first working cavity and the second working cavity is counteracted, vibration of a pump body is reduced, and therefore, more balance blocks are not required to be arranged on the rotating shaft to ensure balance.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a single-cylinder double-suction exhaust compressor pump body and a compressor.
Background
In the prior art, a rotary compressor generally comprises an upper cover, a lower cover, a housing, a motor fixed inside the housing for providing rotary power, and a pump body for compressing a refrigerant, wherein the pump body comprises an upper bearing, a lower bearing, a cylinder, a rotating shaft, a rotor piston, a slider and a valve plate assembly, the cylinder forms a compression cavity, the upper bearing, the lower bearing and the cylinder are sequentially fixed, the piston is sleeved on an eccentric part of the rotating shaft and movably arranged in the compression cavity, and the motor is fixedly connected with the rotating shaft and drives the rotating shaft to rotate; the rotating shaft drives the piston to rotate and compress the refrigerant, so that the refrigerant is changed from low-temperature low-pressure gas into high-temperature high-pressure gas.
In the prior art, the rotating shaft is only provided with one eccentric part, the piston in the compression cavity is only one, and the cylinder is only provided with one air inlet and one air outlet, so that when the rotating shaft drives the piston to perform compression work, the load in the compression cavity of the cylinder is asymmetrical, and the compressor vibrates greatly. Therefore, a balance weight needs to be installed on the rotating shaft to increase the balance of the pump body and reduce the vibration of the compressor, but the method is troublesome, inconvenient to operate and poor in vibration reduction effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a single-cylinder double-suction and exhaust compressor pump body to solve the defects in the prior art.
The utility model relates to a single-cylinder double-suction exhaust compressor pump body, which comprises: the device comprises a cylinder, a first bearing, a second bearing, a rotating shaft, a first sliding block assembly and a second sliding block assembly;
the cylinder is provided with a compression cavity; the first bearing, the cylinder and the second bearing are sequentially detachably fixed; the rotating shaft sequentially and movably penetrates through the first bearing, the air cylinder and the second bearing; the rotating shaft is provided with a rotor part, the rotor part is positioned in the compression cavity, the rotor part is of a centrosymmetric structure, and the center line of the rotor part and the center line of the rotating shaft are on the same straight line; when the rotating shaft rotates, the rotor part circularly moves in the compression cavity and completes compression work;
the inner wall surface of the cylinder is provided with a first slider groove and a second slider groove along the radial direction of the cylinder, and the first slider groove and the second slider groove are symmetrical along the central line of the cylinder;
the first sliding block component is arranged in the first sliding block groove, can slide along the radial direction of the cylinder and abuts against the outer wall of the rotor part; the second sliding block component is arranged in the second sliding block groove, can slide along the radial direction of the cylinder and abuts against the outer wall of the rotor part;
a first air inlet hole and a first exhaust notch which are communicated with the compression cavity are respectively arranged on two sides of the first slider groove, and a second air inlet hole and a second exhaust notch which are communicated with the compression cavity are respectively arranged on two sides of the second slider groove; the first air inlet hole and the second air inlet hole are symmetrical along the center line of the air cylinder; the first and second exhaust cutouts are symmetrical along a centerline of the cylinder.
Compared with the prior art, the rotor part, the first sliding block assembly and the second sliding block assembly of the rotary compressor divide the compression cavity into the first working cavity and the second working cavity, when the rotary shaft rotates, the rotor part rotates along the inner wall of the compression cavity in a clinging mode, the first working cavity and the second working cavity can simultaneously perform air inlet and compressed air exhaust, vibration generated due to uneven stress caused by pressure difference in the first working cavity and the second working cavity is offset, vibration of a pump body is reduced, and therefore more balance blocks do not need to be arranged on the rotary shaft to guarantee balance.
In a preferred or optional embodiment, the rotor part is a central symmetrical structure with a cross section in a shape of 8.
In a preferred or alternative embodiment, the first slider assembly comprises a first slider and a first elastic member, and the second slider assembly comprises a second slider and a second elastic member;
the first sliding block is arranged in the first sliding block groove in a sliding mode, and two ends of the first elastic piece are fixedly connected with the inner wall of the first sliding block groove and the first sliding block respectively; the first elastic element is in a compressed state, and the first sliding block abuts against the outer wall of the rotor part;
the second sliding block is arranged in the second sliding block groove in a sliding mode, and two ends of the second elastic piece are fixedly connected with the inner wall of the second sliding block groove and the second sliding block respectively; the second elastic element is in a compressed state, and the second sliding block is abutted to the outer wall of the rotor part.
In a preferred or optional embodiment, the first bearing is provided with a first exhaust hole and a second exhaust hole in a penetrating manner, the first exhaust hole is communicated to the first exhaust notch, and the second exhaust hole is communicated to the second exhaust notch.
In a preferred or optional embodiment, the compressor pump body further includes two valve plate assemblies, and both the two valve plate assemblies are detachably fixed to the first bearing and movably cover the first exhaust hole and the second exhaust hole respectively.
In a preferred or optional embodiment, the first air inlet hole and the second air inlet hole are both opened along the radial direction of the inner wall surface of the cylinder, and the first exhaust notch and the second exhaust notch are both opened along the inner edge of the cylinder.
The utility model also provides a compressor, which comprises the single-cylinder double-suction exhaust compressor pump body, and the compressor has small vibration and high balance.
For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is an exploded view of the single cylinder double suction and discharge compressor pump body of the present invention;
FIG. 2 is an exploded view of the single cylinder double suction and discharge compressor pump body of the present invention;
FIG. 3 is a schematic view showing the position of the rotor portion of the present invention in the circulating motion in the compression chamber;
fig. 4 is a schematic view showing the position two of the rotor part in the cyclic motion in the compression chamber according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.
It will be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first", "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.
It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "hollow" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 to 4, the present embodiment provides a single-cylinder double-suction and exhaust compressor pump body, which includes: the air cylinder 10, the first bearing 20, the second bearing 30, the rotating shaft 40, the first slider assembly 51 and the second slider assembly 52.
The cylinder 10 has a compression chamber; the first bearing 20, the cylinder 10 and the second bearing 30 are sequentially detachably fixed; the rotating shaft 40 sequentially and movably penetrates through the first bearing 20, the cylinder 10 and the second bearing 30; the rotating shaft 40 is provided with a rotor part 41, the rotor part 41 is positioned in the compression cavity, the rotor part 41 is of a centrosymmetric structure, and the center line of the rotor part 41 and the center line of the rotating shaft 40 are on the same straight line; when the rotating shaft 40 rotates, the rotor portion 41 performs a circular motion in the compression chamber and completes the compression work.
The inner wall surface of the cylinder 10 is provided with a first slider groove 111 and a second slider groove 112 along the radial direction of the cylinder 10, and the first slider groove 111 and the second slider groove 112 are symmetrical along the center line of the cylinder 10. The first slider assembly 51 is disposed in the first slider groove 111, and the first slider assembly 51 is slidable in the radial direction of the cylinder 10 and abuts against the outer wall of the rotor portion 41, that is, the first slider assembly 51 is slidable from the first slider groove 111 toward the compression chamber and abuts against the outer wall of the rotor portion 41. The second slider assembly 52 is disposed in the second slider groove 112, and the second slider assembly 52 can slide along the radial direction of the cylinder 10 and abut against the outer wall of the rotor portion 41, i.e., the second slider assembly 52 can move from the second slider groove 112 toward the compression chamber and abut against the outer wall of the rotor portion 41.
As shown in fig. 3, both sides of the first slider groove 111 are respectively provided with a first air intake hole 121 and a first exhaust slit 131 communicated to the compression chamber, and both sides of the second slider groove 112 are respectively provided with a second air intake hole 122 and a second exhaust slit 132 communicated to the compression chamber; the first and second intake holes 121 and 122 are symmetrical along the center line of the cylinder 10; the first exhaust cutout 131 and the second exhaust cutout 132 are symmetrical along the center line of the cylinder 10. The first air intake holes 121, the second air intake holes 122, the first exhaust slits 131 and the second exhaust slits 132 may be all disposed on the cylinder 10, specifically, in this embodiment, the first air intake holes 121 and the second air intake holes 122 are all radially opened along the inner wall surface of the cylinder 10, and the first exhaust slits 131 and the second exhaust slits 132 are all opened along the inner edge of the cylinder 10, so as to facilitate air intake and exhaust of the cylinder 10.
Since the compressor pump body of the present invention is provided with the symmetrical first and second slider grooves 111 and 112, the symmetrical first and second intake holes 121 and 122, and the symmetrical first and second discharge slits 131 and 132, the symmetry of the compression chamber of the cylinder 10 is ensured. And the rotor part 41 of the rotating shaft 40 is of a centrosymmetric structure, and the center line of the rotor part 41 and the center line of the rotating shaft 40 are on the same straight line, so that the balance of the rotating shaft 40 is ensured, and a balance block does not need to be additionally arranged on the rotating shaft 40. Rotor portion 41, first sliding block set spare 51 and second sliding block set spare 52 are with the first working chamber and the second working chamber of compression chamber partition, when pivot 40 rotates, its rotor portion 41 hugs closely the compression intracavity wall and rotates, first working chamber and second working chamber homoenergetic are admitted air and are compressed the exhaust simultaneously, offset first working chamber and second working chamber because pressure differential leads to the uneven vibration that produces of atress in the atress, the vibration of the pump body has been reduced, also need not to set up the balancing piece from this and guarantee the balance on pivot 40 more.
As shown in fig. 3-4, for convenience of description, in the present embodiment, the rotor portion 41 is divided into a first portion 411 and a second portion 412 along a central line direction thereof, specifically, the rotating shaft 40 rotates (for example, counterclockwise), when the first portion 411 rotates from the first air inlet hole 121 toward the second air outlet slit 132, a first refrigerant with low temperature and low pressure enters the first working chamber from the first air inlet hole 121, and a second refrigerant between the first portion 411 and the second air outlet slit 132 is compressed into a high temperature and high pressure state and is discharged from the second air outlet slit 132, at this time, the second portion 412 also rotates from the second air inlet hole 122 toward the first air outlet slit 131, a third refrigerant with low temperature and low pressure enters the second working chamber from the second air inlet hole 122, and a fourth refrigerant between the second portion 412 and the first air outlet slit 131 is compressed into a high temperature and high pressure state and is discharged from the first air outlet slit 131. The first portion 411 and the second portion 412 of the rotor portion 41 circulate in the first working chamber and the second working chamber to compress the refrigerant. From this, rotor portion 41 is when rotating, and first working chamber and second working chamber homoenergetic are admitted air and are compressed the exhaust simultaneously, offset first working chamber and second working chamber because pressure differential leads to the vibration that the atress is uneven and produce to reduce the pump body vibration.
The rotor portion 41 has a central symmetrical structure, which may be arranged in various ways, and preferably, in this embodiment, the rotor portion 41 has a central symmetrical structure with a cross section in a shape of "8", where the cross section is a cross section perpendicular to a center line of the rotor portion 41, and the rotor portion 41 with such a structure can achieve a better compression effect, and can compress the refrigerant more efficiently.
Specifically, the first slider assembly 51 of the present embodiment includes a first slider 511 and a first elastic member 512, and the second slider assembly 52 includes a second slider 521 and a second elastic member 522. The first slider 511 is slidably disposed in the first slider groove 111, and two ends of the first elastic element 512 are respectively fixedly connected to the inner wall of the first slider groove 111 and the first slider 511; the first elastic element 512 is in a compressed state, and the first slider 511 abuts against the outer wall of the rotor portion 41. The first elastic element 512 pushes the first slider 511 to move toward the compression chamber by the elastic force, and makes it abut on the outer wall of the rotor portion 41. The second slider 521 is slidably disposed in the second slider groove 112, and two ends of the second elastic member 522 are respectively fixedly connected to the inner wall of the second slider groove 112 and the second slider 521; the second elastic member 522 is in a compressed state, and the second slider 521 abuts against the outer wall of the rotor portion 41. The second elastic member 522 pushes the second slider 521 to move toward the compression chamber by the elastic force, and makes it contact with the outer wall of the rotor portion 41. The first elastic element 512 and the second elastic element 522 are in a compressed state, and the first slider 511 and the second slider 521 can be brought into close contact with the outer wall of the rotor portion 41. In this embodiment, the first elastic element 512 and the second elastic element 522 are springs, and in other embodiments, the first elastic element 512 and the second elastic element 522 may also be other elastic components, which is not limited herein.
As an alternative embodiment, as shown in fig. 1, the first bearing 20 has a first exhaust hole 21 and a second exhaust hole 22 formed therethrough, the first exhaust hole 21 communicates with the first exhaust notch 131, and the second exhaust hole 22 communicates with the second exhaust notch 132. The high-temperature and high-pressure refrigerant is discharged out of the pump body through the first exhaust notch 131 and the first exhaust hole 21 in sequence, and can be discharged out of the pump body through the second exhaust notch 132 and the second exhaust hole 22 in sequence. Preferably, the pump body of the single-cylinder double-suction and exhaust compressor of this embodiment further includes two valve plate assemblies (not shown), both of which are detachably fixed with the first bearing 20 and respectively movably cover the first exhaust hole 21 and the second exhaust hole 22. The valve plate assembly is used for opening and closing the exhaust hole, and the discharge degree of the refrigerant can be controlled through the adjusting valve plate assembly.
The utility model also provides a compressor, which comprises the single-cylinder double-suction and exhaust compressor pump body, and the compressor has small vibration and high balance.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (7)
1. The utility model provides a single cylinder double suction exhaust's compressor pump body which characterized in that includes:
the device comprises a cylinder, a first bearing, a second bearing, a rotating shaft, a first sliding block assembly and a second sliding block assembly;
the cylinder is provided with a compression cavity; the first bearing, the cylinder and the second bearing are sequentially detachably fixed; the rotating shaft sequentially and movably penetrates through the first bearing, the air cylinder and the second bearing; the rotating shaft is provided with a rotor part, the rotor part is positioned in the compression cavity, the rotor part is of a centrosymmetric structure, and the center line of the rotor part and the center line of the rotating shaft are on the same straight line; when the rotating shaft rotates, the rotor part circularly moves in the compression cavity and completes compression work;
the inner wall surface of the cylinder is provided with a first slider groove and a second slider groove along the radial direction of the cylinder, and the first slider groove and the second slider groove are symmetrical along the central line of the cylinder;
the first sliding block component is arranged in the first sliding block groove, can slide along the radial direction of the cylinder and abuts against the outer wall of the rotor part; the second sliding block component is arranged in the second sliding block groove, can slide along the radial direction of the cylinder and abuts against the outer wall of the rotor part;
a first air inlet hole and a first exhaust notch which are communicated with the compression cavity are respectively arranged on two sides of the first slider groove, and a second air inlet hole and a second exhaust notch which are communicated with the compression cavity are respectively arranged on two sides of the second slider groove; the first air inlet hole and the second air inlet hole are symmetrical along the center line of the air cylinder; the first and second exhaust cutouts are symmetrical along a centerline of the cylinder.
2. The single cylinder double suction and exhaust compressor pump body of claim 1, wherein:
the rotor part is of a central symmetrical structure with an 8-shaped section.
3. The single cylinder double suction and exhaust compressor pump body of claim 1, wherein:
the first sliding block assembly comprises a first sliding block and a first elastic piece, and the second sliding block assembly comprises a second sliding block and a second elastic piece;
the first sliding block is arranged in the first sliding block groove in a sliding mode, and two ends of the first elastic piece are fixedly connected with the inner wall of the first sliding block groove and the first sliding block respectively; the first elastic element is in a compressed state, and the first sliding block abuts against the outer wall of the rotor part;
the second sliding block is arranged in the second sliding block groove in a sliding mode, and two ends of the second elastic piece are fixedly connected with the inner wall of the second sliding block groove and the second sliding block respectively; the second elastic element is in a compressed state, and the second sliding block is abutted to the outer wall of the rotor part.
4. The single cylinder double suction and exhaust compressor pump body of claim 1, wherein:
the first bearing is provided with a first exhaust hole and a second exhaust hole in a penetrating mode, the first exhaust hole is communicated to the first exhaust notch, and the second exhaust hole is communicated to the second exhaust notch.
5. The single cylinder double suction and exhaust compressor pump body of claim 4, wherein:
the valve plate assembly is detachably fixed with the first bearing and movably covered on the first exhaust hole and the second exhaust hole respectively.
6. The single cylinder double suction and exhaust compressor pump body according to any one of claims 1 to 5, characterized in that:
first inlet port and second inlet port all follow the cylinder internal face is radially seted up, first exhaust incision and second exhaust incision are all followed the interior border of cylinder is seted up.
7. A compressor, characterized by comprising a single cylinder double suction and discharge compressor pump body according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121351603.8U CN216111264U (en) | 2021-06-17 | 2021-06-17 | Single-cylinder double-suction exhaust compressor pump body and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121351603.8U CN216111264U (en) | 2021-06-17 | 2021-06-17 | Single-cylinder double-suction exhaust compressor pump body and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216111264U true CN216111264U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121351603.8U Active CN216111264U (en) | 2021-06-17 | 2021-06-17 | Single-cylinder double-suction exhaust compressor pump body and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216111264U (en) |
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2021
- 2021-06-17 CN CN202121351603.8U patent/CN216111264U/en active Active
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