CN209743158U - Pump body structure of rotary cylinder piston compressor and rotary cylinder piston compressor - Google Patents
Pump body structure of rotary cylinder piston compressor and rotary cylinder piston compressor Download PDFInfo
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- CN209743158U CN209743158U CN201822128015.2U CN201822128015U CN209743158U CN 209743158 U CN209743158 U CN 209743158U CN 201822128015 U CN201822128015 U CN 201822128015U CN 209743158 U CN209743158 U CN 209743158U
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Abstract
the utility model provides a change jar piston compressor's pump body structure and change jar piston compressor, change jar piston compressor's pump body structure and include: the air cylinder is provided with a rotating shaft mounting hole and a piston mounting hole, the rotating shaft mounting hole penetrates through the air cylinder along the axial direction, and the piston mounting hole penetrates through the side wall of the air cylinder; the at least one inner circle matching structure is arranged at least one end of the cylinder and comprises a body and a boss extending out of the body; the boss is suitable for extending into the rotating shaft mounting hole and is matched with the hole wall of the rotating shaft mounting hole; the maximum length of the body in the radial direction of the cylinder is larger than the aperture of the rotating shaft mounting hole; the cylinder rotates relative to the inner circle matching structure; the oil guide groove is arranged on the peripheral surface of the boss and extends to the body from one end of the boss, which is far away from the body; or the oil guide groove is arranged on the hole wall of the rotating shaft mounting hole and extends to the outer end face of the cylinder from the hole wall of the piston mounting hole. The utility model discloses can lubricate between cylinder and the interior round cooperation structure, reduce the wearing and tearing between cylinder and the interior round cooperation structure.
Description
Technical Field
The utility model relates to a compression equipment technical field, concretely relates to change jar piston compressor's pump body structure and change jar piston compressor.
Background
The rotary cylinder piston compressor belongs to a compressor with a brand new structure, and essentially adopts a crosshead shoe structure principle to combine the main structure of the piston compressor with the main structure of a rotor compressor to obtain the compressor. The existing rotary cylinder piston compressor comprises a rotating shaft, a piston sleeved outside the rotating shaft and a cylinder sleeved outside the piston; referring to fig. 1, O1 is the center of the rotating shaft, O2 is the center of the cylinder, e is the center distance, and the square is the center of mass of the piston. When the rotating shaft rotates, the piston is driven to do circular motion, the distance between the piston and the center of the cylinder runs in the range of 0-e, the rotating shaft and the cylinder are eccentrically assembled, the rotating shaft drives the cylinder to rotate through the piston, and due to the fact that the rotating shaft and the cylinder have an eccentric relation, when the rotating shaft and the cylinder rotate around respective axes respectively and do reciprocating motion relative to the cylinder and the piston, and gas compression is achieved.
In the above-mentioned rotary cylinder piston compressor, there are two main ways of supporting the cylinder, one is to support the inner circle of the cylinder through a matching structure such as a flange, and the other is to support the outer circle of the short shaft of the cylinder through a matching structure such as a limiting plate. Specifically, can be according to concrete demand and nimble collocation, for example can all be the interior circle supporting at cylinder both ends, perhaps cylinder both ends are the excircle supporting, perhaps cylinder one end interior circle supporting, the other end excircle supporting. For the case of internal circle support, the internal circle matching structure usually includes a body and a boss extending from the body, and the outer peripheral surface of the boss is matched with the hole wall of the rotating shaft mounting hole of the cylinder. When the cylinder rotates, a friction pair of rotary motion is formed between the outer peripheral surface of the boss and the hole wall of the rotating shaft mounting hole of the cylinder, so that the inner circle matching structure and the cylinder are easily abraded, and the service life and reliability of the pump body structure and the compressor are influenced.
SUMMERY OF THE UTILITY MODEL
therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect of easy wearing and tearing between the cylinder among the prior art and the interior round fit structure to a pump body structure and the change jar piston compressor of changeing jar piston compressor that difficult wearing and tearing between cylinder and the interior round fit structure are provided.
the utility model provides a change jar piston compressor's pump body structure, include:
The air cylinder is provided with a rotating shaft mounting hole and a piston mounting hole, the rotating shaft mounting hole axially penetrates through the air cylinder and is suitable for mounting a rotating shaft, and the piston mounting hole penetrates through the side wall of the air cylinder and is suitable for mounting a piston;
The at least one inner circle matching structure is arranged at least one end of the cylinder and comprises a body and a boss extending out of the body; the boss is suitable for extending into the rotating shaft mounting hole and is matched with the hole wall of the rotating shaft mounting hole; the maximum length of the body in the radial direction of the cylinder is larger than the aperture of the rotating shaft mounting hole; the cylinder rotates relative to the inner circle matching structure;
The oil guide groove is formed in the peripheral surface of the boss and extends to the body from one end, far away from the body, of the boss; or the oil guide groove is formed in the hole wall of the rotating shaft mounting hole and extends to the outer end face of the cylinder from the hole wall of the piston mounting hole.
The oil guide groove is spiral.
The relationship between the rotation direction of the oil guide groove and the rotation direction of the cylinder is satisfied, and when the cylinder rotates relative to the inner circle matching structure, a component force towards the body is applied to oil in the oil guide groove.
The oil guide groove is formed in the outer peripheral surface of the boss, and the rotation direction of the oil guide groove is opposite to the rotation direction of the cylinder relative to the inner circle matching structure.
The oil storage tank is arranged on the outer peripheral surface of the boss and/or the hole wall of the rotating shaft mounting hole; the oil storage tank is communicated with one end, far away from the body, of the oil guide tank.
a chamfer is arranged at one end, far away from the body, of the boss, and/or a chamfer is arranged at one end, facing the piston mounting hole, of the rotating shaft mounting hole; and the oil storage tank is formed between the chamfer and the hole wall of the rotating shaft mounting hole or between the chamfer and the peripheral surface of the boss.
The oil drain hole is formed in the body and penetrates through the through hole of the body along the axial direction, and the oil guide groove is communicated with one end, away from the piston mounting hole, of the oil guide groove.
Further comprising:
The piston is arranged in the piston mounting hole and is suitable for reciprocating in the piston mounting hole;
the rotating shaft is arranged in the piston and is eccentrically arranged with the cylinder;
The cylinder liner is provided with a cylinder installation cavity suitable for installing the cylinder and is connected with the inner circle matching structure.
In the process that the rotating shaft drives the air cylinder to rotate, the area of the air cylinder moving towards the outer peripheral surface of the corresponding boss and the area of the outer peripheral surface of the boss corresponding to the area are bearing areas; the area of the cylinder moving back to the outer peripheral surface of the corresponding boss and the area of the outer peripheral surface of the boss corresponding to the area are non-bearing areas; the oil guide groove is arranged on the non-bearing area.
the cylinder comprises a cylinder body and a protruding shaft extending outwards from at least one end of the cylinder body, and the hole wall of the rotating shaft mounting hole at the protruding shaft is matched with the outer peripheral surface of the inner circle matching structure.
The oil inlet hole penetrates through the body along the axial direction and is close to the boss.
The inner circle matching structures are provided with two inner circle matching structures which are respectively arranged at two ends of the air cylinder.
the inner circle matching structure is a flange.
The utility model also provides a change jar piston compressor, including foretell change jar piston compressor's pump body structure.
The utility model discloses technical scheme has following advantage:
1. The utility model provides a change jar piston compressor's pump body structure, include: the air cylinder is provided with a rotating shaft mounting hole and a piston mounting hole, the rotating shaft mounting hole axially penetrates through the air cylinder and is suitable for mounting a rotating shaft, and the piston mounting hole penetrates through the side wall of the air cylinder and is suitable for mounting a piston; the at least one inner circle matching structure is arranged at least one end of the cylinder and comprises a body and a boss extending out of the body; the boss is suitable for extending into the rotating shaft mounting hole and is matched with the hole wall of the rotating shaft mounting hole; the maximum length of the body in the radial direction of the cylinder is larger than the aperture of the rotating shaft mounting hole; the cylinder rotates relative to the inner circle matching structure; the oil guide groove is formed in the peripheral surface of the boss and extends to the body from one end, far away from the body, of the boss; or the oil guide groove is formed in the hole wall of the rotating shaft mounting hole and extends to the outer end face of the cylinder from the hole wall of the piston mounting hole. Through set up on the outer peripheral face of boss or the pore wall of pivot mounting hole and lead the oil groove, and lead the oil groove by the boss is kept away from the one end of body extends to the body, or by the pore wall of piston mounting hole extends to the outer terminal surface of cylinder can make pivot rotate in-process spun oil and enter into and lead the oil groove to lubricate between the pore wall of the outer peripheral face of boss and pivot mounting hole, effectively reduced the wearing and tearing between cylinder and the interior round cooperation structure, improved the life and the reliability of pump body structure and compressor.
2. The utility model provides a change jar piston compressor's pump body structure, it is the heliciform to lead the oil groove. The oil guide groove with the structure can enable oil in the oil guide groove to lubricate the space between the peripheral surface of the boss and the hole wall of the rotating shaft mounting hole more fully.
3. The utility model provides a change jar piston compressor's pump body structure, lead the soon of oil groove with relation between the direction of rotation of cylinder satisfies, the cylinder for when interior circle cooperation structure is rotatory, apply for lead orientation of oil in the oil groove the component force of body. The rotation of cylinder provides power for leading the flow of oil in the oil groove like this, and the reinforcing leads the mobility of oil in the oil groove, and then the lubricated effect of reinforcing.
4. The utility model provides a pump body structure of a rotary cylinder piston compressor, which also comprises an annular oil storage tank, wherein the oil storage tank is arranged on the outer peripheral surface of the boss and/or the hole wall of the rotating shaft mounting hole; the oil storage tank is communicated with one end, far away from the body, of the oil guide tank. Therefore, the oil supply at one end of the oil guide groove far away from the body can be ensured, and effective lubrication between the peripheral surface of the boss and the hole wall of the rotating shaft mounting hole can be ensured.
5. The utility model provides a change jar piston compressor's pump body structure, be equipped with the oil drain hole on the body, the oil drain hole is for following the axial and run through the through-hole of body, and with lead the oil groove and keep away from the one end intercommunication of piston mounting hole. The oil drain hole is arranged, so that oil in the oil guide groove can be immediately discharged into an oil pool of the compressor, oil circuit circulation is formed, the oil in the oil guide groove can take away friction heat between the peripheral surface of the boss and the hole wall of the rotating shaft mounting hole in real time, the temperature of a friction pair formed between the peripheral surface of the boss and the hole wall of the rotating shaft mounting hole of the cylinder is reduced, and the reliability of the compressor is improved.
6. The utility model provides a pump body structure of a rotary cylinder piston compressor, in the process that the rotating shaft drives the air cylinder to rotate, the air cylinder moves towards the corresponding area of the outer peripheral surface of the boss, and the area of the outer peripheral surface of the boss corresponding to the area is a bearing area; the area of the cylinder moving back to the outer peripheral surface of the corresponding boss and the area of the outer peripheral surface of the boss corresponding to the area are non-bearing areas; the oil guide groove is arranged on the non-bearing area. Because the friction between the outer peripheral face of the boss at the bearing area and the hole wall of the rotating shaft mounting hole is larger, the oil guide groove is arranged on the non-bearing area, and the continuity of a lubricating oil film at the bearing area can be ensured, so that the lubricating area has a better lubricating effect, the abrasion at the bearing area is reduced, the abrasion between the outer peripheral face of the boss and the hole wall of the rotating shaft mounting hole of the cylinder is fully reduced, and meanwhile, the effect of preventing the stress concentration at the bearing area is also achieved.
Drawings
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a crosshead shoe;
Fig. 2 is a schematic exploded perspective view of a pump body structure of a rotary cylinder piston compressor according to a first embodiment of the present invention;
fig. 3 is a perspective view of an inner circle fitting structure of a pump body structure of the rotary cylinder piston compressor shown in fig. 2;
FIG. 4 is a longitudinal cross-sectional view of the inner circle fitting structure shown in FIG. 3;
Fig. 5 is a longitudinal sectional view schematically showing the pump body structure of the rotary cylinder piston compressor shown in fig. 2 in an assembled state;
FIG. 6 is an enlarged view of area A of FIG. 5;
Description of reference numerals:
1-cylinder, 11-rotating shaft mounting hole, 12-piston mounting hole, 13-cylinder body, 14-protruding shaft, 21-body, 211-oil inlet hole, 22-boss, 3-oil guide groove, 4-rotating shaft, 5-piston, 6-cylinder sleeve, 7-oil storage groove, 8-chamfer and 9-oil discharge hole.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
as shown in fig. 2-6, the present embodiment provides a pump body structure of a rotary cylinder piston compressor, which includes a cylinder 1, an inner circle matching structure, an oil guiding groove 3, a rotating shaft 4, a piston 5, and a cylinder sleeve 6.
The cylinder 1 is provided with a rotating shaft mounting hole and a piston mounting hole 12, the rotating shaft mounting hole axially penetrates through the cylinder 1 and is suitable for mounting the rotating shaft 4, and the piston mounting hole 12 penetrates through the side wall of the cylinder 1 and is suitable for mounting the piston 5.
The inner circle matching structure is provided with one and arranged at one end of the cylinder 1, and comprises a body 21 and a boss 22 extending from the body 21; the boss 22 is suitable for extending into the rotating shaft mounting hole and is matched with the hole wall of the rotating shaft mounting hole; the maximum length of the body 21 in the radial direction of the cylinder 1 is larger than the aperture of the rotating shaft mounting hole; the cylinder 1 rotates relative to the inner circle fit structure. As an alternative embodiment, the inner circle fitting structure may have two inner circle fitting structures, which are respectively provided at both ends of the cylinder 1.
the oil guide groove 3 is disposed on the outer circumferential surface of the boss 22, and extends from one end of the boss 22 far away from the body 21 to the body 21. As an alternative embodiment, the oil guide groove 3 may be provided in the bore wall of the shaft mounting hole and extend from the bore wall of the piston mounting hole 12 to the outer end surface of the cylinder 1.
the piston 5 is mounted in the piston mounting hole 12 and is adapted to reciprocate in the piston mounting hole 12.
the rotating shaft 4 is installed in the piston 5 and is eccentrically disposed from the cylinder 1.
The cylinder sleeve 6 is provided with a cylinder 1 installation cavity suitable for installing the cylinder 1 and is connected with the inner circle matching structure.
The rotation shaft 4 rotates, so that the piston 5 reciprocates relative to the cylinder 1 and drives the cylinder 1 to rotate relative to the cylinder sleeve 6.
Through set up on the outer peripheral face at boss 22 or the pore wall of pivot mounting hole and lead oil groove 3, and lead oil groove 3 and keep away from the one end of body 21 by boss 22 and extend to body 21, or extend to the outer terminal surface of cylinder 1 by the pore wall of piston mounting hole 12, can make 4 rotation in-process spun oils of pivot enter into and lead oil groove 3, thereby lubricate between the pore wall of the outer peripheral face of boss 22 and pivot mounting hole, the wearing and tearing between cylinder 1 and the interior circle cooperation structure have effectively been reduced, the life and the reliability of pump body structure and compressor have been improved.
The specific shape of the body 21 can be various, in this embodiment, the body 21 is cylindrical, and the outer diameter is larger than the diameter of the mounting hole of the rotating shaft. As an alternative embodiment, the body 21 may be a cylinder with a rectangular cross-section.
The specific shape of the oil guiding groove 3 may be various, and the oil guiding groove 3 in this embodiment is spiral. The oil guide groove 3 with the structure can ensure that the oil in the oil guide groove 3 can lubricate the space between the outer peripheral surface of the boss 22 and the hole wall of the rotating shaft mounting hole more fully. As an alternative embodiment, the oil guide groove 3 may be linear and extend in the axial direction of the boss 22.
In order to provide power for the flowing of the oil in the oil guide groove 3, and enhance the fluidity of the oil in the oil guide groove 3, and further enhance the lubricating effect, in this embodiment, the relationship between the rotation direction of the oil guide groove 3 and the rotation direction of the cylinder 1 is satisfied, and when the cylinder 1 rotates relative to the inner circle matching structure, a component force toward the body 21 is applied to the oil in the oil guide groove 3. Specifically, the oil guide groove 3 has a rotation direction opposite to the rotation direction of the cylinder 1 with respect to the inner circle fitting structure. As an alternative embodiment, when the oil guide groove 3 is provided on the hole wall of the rotating shaft mounting hole, it is preferable that the rotation direction of the oil guide groove 3 is the same as the rotation direction of the cylinder with respect to the inner circle fitting structure.
The pump body structure of the rotary cylinder piston compressor provided in the embodiment further includes an annular oil storage tank 7, and the oil storage tank 7 is disposed on the outer peripheral surface of the boss 22 and is communicated with one end of the oil guide tank 3 away from the body 21. This ensures that the oil guide groove 3 is supplied with oil at the end away from the body 21, thereby ensuring that effective lubrication can be performed between the outer peripheral surface of the boss 22 and the hole wall of the mounting hole of the rotary shaft. As an alternative embodiment, the oil reservoir 7 may be provided on the wall of the shaft mounting hole. Alternatively, the oil reservoir 7 may be provided on both the outer peripheral surface of the boss 22 and the wall of the shaft mounting hole.
The oil storage tank 7 can be formed in various ways, in this embodiment, the end of the boss 22 away from the body 21 is provided with a chamfer 8, and the oil storage tank 7 is formed between the chamfer 8 and the wall of the mounting hole of the rotating shaft. As an alternative embodiment, a chamfer 8 may be provided at one end of the shaft mounting hole facing the piston mounting hole 12, and an oil reservoir 7 may be formed between the chamfer 8 and the outer peripheral surface of the boss 22. As an alternative embodiment, the end of the boss 22 away from the body 21 may be provided with a chamfer 8, and the end of the shaft mounting hole facing the piston mounting hole 12 may also be provided with a chamfer 8; between chamfer 8 on the boss 22 and the pore wall of the rotating shaft mounting hole, and between chamfer 8 on the rotating shaft mounting hole and the outer peripheral surface of the boss 22, an oil storage tank 7 is formed together, that is, the oil storage tank 7 is formed between two chamfers 8.
In this embodiment, the body 21 is provided with an oil drain hole 9, and the oil drain hole 9 is a through hole axially penetrating through the body 21 and is communicated with one end of the oil guide groove 3 far away from the piston mounting hole 12. The oil drain hole 9 is arranged, so that oil in the oil guide groove 3 can be immediately discharged to an oil pool of the compressor, oil circuit circulation is formed, the oil in the oil guide groove 3 can take away the absorbed friction heat between the peripheral surface of the boss 22 and the hole wall of the rotating shaft mounting hole in real time, the temperature of a friction pair formed between the peripheral surface of the boss 22 and the hole wall of the rotating shaft mounting hole of the cylinder 1 is reduced, and the reliability of the compressor is improved.
In the process that the rotating shaft 4 drives the air cylinder 1 to rotate, the area of the air cylinder 1 moving towards the outer peripheral surface of the corresponding boss 22 and the area of the outer peripheral surface of the boss 22 corresponding to the area are bearing areas; the area of the cylinder 1 moving away from the outer peripheral surface of the corresponding boss 22 and the area of the outer peripheral surface of the boss 22 corresponding to the area are non-bearing areas.
The specific position of the oil guide groove 3 on the boss 22 can be various, and in this embodiment, the oil guide groove 3 is disposed on the non-bearing area. Because the friction between the outer peripheral face of the boss 22 at the bearing area and the hole wall of the rotating shaft mounting hole is larger, the oil guide groove 3 is arranged on the non-bearing area, the continuity of a lubricating oil film at the bearing area can be ensured, so that the lubricating area has a better lubricating effect, the abrasion at the bearing area is reduced, the abrasion between the outer peripheral face of the boss 22 and the hole wall of the rotating shaft mounting hole of the cylinder 1 is fully reduced, and meanwhile, the effect of preventing the stress concentration at the bearing area is also achieved.
In this embodiment, the cylinder 1 includes a cylinder body 13, and protruding shafts 14 extending outward from two ends of the cylinder body 13, respectively, and the hole wall of the rotating shaft mounting hole at the protruding shaft 14 is matched with the outer peripheral surface of the inner circle matching structure. As an alternative embodiment, the protruding shaft 14 may extend only at one end of the cylinder body 13. As an alternative embodiment, the protruding shaft 14 may be provided at both ends of the cylinder body 13.
The pump body structure of the rotary cylinder piston compressor provided in the embodiment further comprises an oil inlet hole 211 formed in the body 21, wherein the oil inlet hole 211 axially penetrates through the body 21 and is arranged close to the boss 22.
The specific form of the inner circle matching structure can be various, and the inner circle matching structure in the embodiment is a flange.
The embodiment also provides a rotary cylinder piston compressor, which comprises the pump body structure of the rotary cylinder piston compressor.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (14)
1. a pump body structure of a rotary cylinder piston compressor is characterized by comprising:
The air cylinder (1) is provided with a rotating shaft mounting hole (11) and a piston mounting hole (12), the rotating shaft mounting hole (11) penetrates through the air cylinder (1) along the axial direction and is suitable for mounting a rotating shaft (4), and the piston mounting hole (12) penetrates through the side wall of the air cylinder (1) and is suitable for mounting a piston (5);
The at least one inner circle matching structure is arranged at least one end of the cylinder (1) and comprises a body (21) and a boss (22) extending from the body (21); the boss (22) is suitable for extending into the rotating shaft mounting hole (11) and is matched with the hole wall of the rotating shaft mounting hole (11); the maximum length of the body (21) in the radial direction of the cylinder (1) is larger than the aperture of the rotating shaft mounting hole (11); the cylinder (1) rotates relative to the inner circle matching structure;
The oil guide groove (3) is formed in the outer peripheral surface of the boss (22), and extends to the body (21) from one end, far away from the body (21), of the boss (22); or the oil guide groove (3) is formed in the hole wall of the rotating shaft mounting hole (11) and extends to the outer end face of the cylinder (1) from the hole wall of the piston mounting hole (12).
2. The pump body structure of a rotary cylinder piston compressor according to claim 1, characterized in that the oil-guiding groove (3) is helical.
3. The pump body structure of a rotary cylinder piston compressor according to claim 2, characterized in that the relationship between the direction of rotation of the oil-guiding groove (3) and the direction of rotation of the cylinder (1) is such that, when the cylinder (1) rotates relative to the inner circle fitting structure, a component force is applied to the oil in the oil-guiding groove (3) toward the body (21).
4. A pump body structure of a rotary cylinder piston compressor according to claim 3, characterized in that the oil-guiding groove (3) has a rotation direction opposite to the direction of rotation of the cylinder (1) with respect to the inner circle fitting structure.
5. The pump body structure of the rotary cylinder piston compressor according to any one of claims 1 to 4, further comprising an annular oil reservoir (7), wherein the oil reservoir (7) is provided on the outer peripheral surface of the boss (22) and/or the hole wall of the rotary shaft mounting hole (11); the oil storage tank (7) is communicated with one end, far away from the body (21), of the oil guide groove (3).
6. The pump body structure of a rotary cylinder piston compressor according to claim 5, characterized in that one end of the boss (22) away from the body (21) is provided with a chamfer (8), and/or one end of the rotating shaft mounting hole (11) facing the piston mounting hole (12) is provided with a chamfer (8); and the oil storage tank (7) is formed between the chamfer angle (8) and the hole wall of the rotating shaft mounting hole (11) or between the chamfer angle (8) and the outer peripheral surface of the boss (22).
7. The pump body structure of a rotary cylinder piston compressor according to any one of claims 1-3, characterized in that the body (21) is provided with an oil drain hole (9), and the oil drain hole (9) is a through hole axially penetrating the body (21) and is communicated with one end of the oil guide groove (3) far away from the piston mounting hole (12).
8. The pump body structure of a rotary cylinder piston compressor according to any one of claims 1 to 3, characterized by further comprising:
The piston (5) is installed in the piston installation hole (12) and is suitable for reciprocating in the piston installation hole (12);
The rotating shaft (4) is arranged in the piston (5) and is eccentrically arranged with the cylinder (1);
and the cylinder sleeve (6) is provided with a cylinder (1) installation cavity suitable for installing the cylinder (1), and is connected with the inner circle matching structure.
9. The pump body structure of the rotary cylinder piston compressor according to claim 8, wherein, in the process that the cylinder (1) is driven by the rotating shaft (4) to rotate, the area of the cylinder (1) moving towards the outer peripheral surface of the corresponding boss (22) and the area of the outer peripheral surface of the boss (22) corresponding to the area are bearing areas; the area of the cylinder (1) moving back to the outer peripheral surface of the corresponding boss (22) and the area of the outer peripheral surface of the boss (22) corresponding to the area are non-bearing areas; the oil guide groove (3) is arranged on the non-bearing area.
10. The pump body structure of a rotary cylinder piston compressor according to any one of claims 1 to 3, wherein the cylinder (1) includes a cylinder body (13), and a protruding shaft (14) extending outward from at least one end of the cylinder body (13), and a hole wall of the rotary shaft mounting hole (11) at the protruding shaft (14) is fitted to an outer peripheral surface of the inner circular fitting structure.
11. the pump body structure of a rotary cylinder piston compressor according to any one of claims 1 to 3, further comprising an oil inlet hole (211) provided on the body (21), the oil inlet hole (211) axially penetrating the body (21) and being disposed adjacent to the boss (22).
12. The pump body structure of a revolving cylinder piston compressor according to any of claims 1-3, characterized in that the inner circle fitting structure has two, one at each end of the cylinder (1).
13. A pump body structure of a rotary cylinder piston compressor according to any one of claims 1 to 3, characterized in that the inner circle fitting structure is a flange.
14. A rotary cylinder piston compressor, characterized by comprising a pump body structure of a rotary cylinder piston compressor according to any one of claims 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822128015.2U CN209743158U (en) | 2018-12-17 | 2018-12-17 | Pump body structure of rotary cylinder piston compressor and rotary cylinder piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822128015.2U CN209743158U (en) | 2018-12-17 | 2018-12-17 | Pump body structure of rotary cylinder piston compressor and rotary cylinder piston compressor |
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| CN209743158U true CN209743158U (en) | 2019-12-06 |
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| CN201822128015.2U Active CN209743158U (en) | 2018-12-17 | 2018-12-17 | Pump body structure of rotary cylinder piston compressor and rotary cylinder piston compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488592A (en) * | 2018-12-17 | 2019-03-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor |
-
2018
- 2018-12-17 CN CN201822128015.2U patent/CN209743158U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488592A (en) * | 2018-12-17 | 2019-03-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor |
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