CN211950807U - Cylinder, cylinder head assembly, reciprocating compressor and refrigeration equipment - Google Patents
Cylinder, cylinder head assembly, reciprocating compressor and refrigeration equipment Download PDFInfo
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- CN211950807U CN211950807U CN202020404121.3U CN202020404121U CN211950807U CN 211950807 U CN211950807 U CN 211950807U CN 202020404121 U CN202020404121 U CN 202020404121U CN 211950807 U CN211950807 U CN 211950807U
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Abstract
The utility model provides a cylinder, cylinder head subassembly, reciprocating compressor and refrigeration plant. Wherein, the cylinder includes: a first cylinder having a cylinder bore therein; the second cylinder body is internally provided with a mounting hole and sleeved outside the first cylinder body through the mounting hole; and an assembly gap is formed between the mounting hole and the first cylinder body, and the second cylinder body is used for mounting and positioning the cylinder. Through making the cylinder wholly through second cylinder body and frame, external structure connection such as cylinder head, because the existence of erection gap between mounting hole and the first cylinder body, can effectively avoid the cylinder of integral type among the correlation technique with the cylinder head, the in-process of parts assembly such as frame, receive the extrusion and the jar hole local deformation that leads to the cylinder of connecting piece such as bolt, lead to the emergence of the wearing and tearing aggravation condition in jar hole and piston, deformation that the second cylinder body of avoiding being connected with external structure appears influences first cylinder body, guarantee the performance of the compressor of using this cylinder.
Description
Technical Field
The utility model belongs to the technical field of refrigeration plant, particularly, relate to a cylinder, a cylinder head subassembly, a reciprocating compressor and a refrigeration plant.
Background
Most of cylinders used in the traditional reciprocating compressor are of an integrated structure, cast iron and a rack are integrally cast and formed, namely a crankcase comprising the cylinders and the rack is formed, of course, a few of cylinders and the rack are of a split type, and the cylinders are integrally cast and formed. Wherein the cylinder is at the in-process with the cylinder head assembly, and the cylinder hole of cylinder is very easily atred and takes place deformation, and this can lead to the local clearance grow of piston in cylinder hole and the cylinder hole or diminish, can aggravate the wearing and tearing of cylinder hole and piston, influences the performance of compressor, and if improve the rigidity of cylinder through increasing the material, again will make cost increase and cylinder blank commonality worsen.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art or the correlation technique.
Therefore, the utility model discloses a first aspect provides a cylinder.
A second aspect of the present invention provides a cylinder head assembly.
A third aspect of the present invention provides a reciprocating compressor.
A fourth aspect of the present invention provides a refrigeration apparatus.
In view of this, according to the utility model discloses a first aspect proposes a cylinder includes: a first cylinder having a cylinder bore therein; the second cylinder body is internally provided with a mounting hole and sleeved outside the first cylinder body through the mounting hole; and an assembly gap is formed between the mounting hole and the first cylinder body, and the second cylinder body is used for mounting and positioning the cylinder.
The utility model provides a split cylinder, including first cylinder body and second cylinder body, specifically make the first cylinder body be equipped with the cylinder hole that is used for holding the piston, make the second cylinder body have the mounting hole in vivo, and make the second cylinder body cover outside the first cylinder body through the mounting hole, make the mounting hole and first cylinder body between have the fit-up gap, for example mounting hole and first cylinder body clearance fit, make the second cylinder body be used for the installation location of cylinder, also means the cylinder wholly passes through the second cylinder body and frame, external structure such as cylinder head is connected, because the existence of the fit-up gap between mounting hole and the first cylinder body, can effectively avoid the cylinder of integral type cylinder hole in the correlation technique in the process of assembling with parts such as cylinder head, frame, receive the extrusion of connecting piece such as bolt and lead to the local deformation of cylinder, lead to the emergence of the wearing and tearing aggravation condition of piston, avoid the deformation that the second cylinder body that is connected with external structure appears to influence the first cylinder body, the performance of the compressor using the cylinder is ensured.
Moreover, the cylinder is designed to be split, the second cylinder body with different sizes and shapes can be replaced to be sleeved on the first cylinder body, the cylinders with different sizes and structures are assembled, the connection of the cylinders and external structures such as frames and cylinder heads with different assembly requirements is facilitated, and the universality of the cylinders is improved.
In addition, according to the utility model provides an among the above-mentioned technical scheme cylinder can also have following additional technical characterstic:
in one possible design, the first cylinder body comprises a first cylinder body and a first connecting part which are connected, a cylinder hole is formed in the first cylinder body, and the first connecting part is located at one end of the first cylinder body; the second cylinder body comprises a second cylinder body and a second connecting part which are connected, a mounting hole is formed in the second cylinder body, and the second connecting part is arranged on the second cylinder body; the first connecting portion is connected with the second connecting portion, and the second connecting portion is used for installing and positioning the air cylinder.
In this design, through making first cylinder body including the first jar body and the first connecting portion that are connected, make the second cylinder body including the second jar body and the second connecting portion that are connected to set up the cylinder hole in first jar body, set up the mounting hole in second jar is originally internal, make second jar body can overlap and establish on first jar body. By making the first connecting part located at one end of the first cylinder body, the interference of the second cylinder body with the first connecting part in the process of sleeving the first cylinder body can be effectively avoided. Through making first connecting portion be connected with the second connecting portion, and be connected through outer structure such as second connecting portion and cylinder head, in order to install the location to the cylinder, can effectively avoid the deformation that the second connecting portion takes place at the in-process with the cylinder head assembly on the first cylinder body is transmitted to through the second cylinder body, also can make the deformation that the second connecting portion took place only small amplitude or not transmit on first connecting portion, and can not transmit on the first cylinder body, and then avoid the jar hole in the first cylinder body to take place deformation.
In one possible design, the air cylinder further comprises a first connecting piece, and the second connecting piece is used for installing and positioning the air cylinder through the first connecting piece; the first connecting piece penetrates through the first connecting part, and an assembling gap is formed between the first connecting piece and the first connecting part. That is, in the process that the second connecting portion is connected with the cylinder head through the first connecting member, the first connecting member penetrates through the first connecting portion, and a gap is reserved between the first connecting portion and the second connecting portion, for example, a gap smaller than 0.1mm or smaller, such as 0.05mm or 0.01mm, so that the force generated in the process that the second connecting portion is connected with the cylinder head can be effectively prevented from being transmitted to the first connecting portion through the first connecting member, and the cylinder hole in the first cylinder body is ensured not to be deformed. Moreover, the first connecting piece penetrates through the first connecting portion, so that the first connecting portion can be limited, and the first connecting portion and the second connecting portion can be accurately installed conveniently.
In one possible design, a plurality of through holes surrounding the central line of the first cylinder body are arranged on the first connecting part, a plurality of first threaded holes surrounding the central line of the second cylinder body are arranged on the second connecting part, and the plurality of through holes and the plurality of first threaded holes are distributed in a one-to-one correspondence manner; each first connecting piece passes through one through hole to be connected with one first threaded hole.
In this design, specifically be equipped with a plurality of through-holes that encircle the central line of first cylinder body on first connecting portion, be equipped with a plurality of first screw holes that encircle the central line of second cylinder body on second connecting portion, pass the through-hole through first connecting piece after be connected with first screw hole, not only realized the connection of first connecting portion and second connecting portion, and because first connecting piece and first screw hole phase-match back, there is the clearance necessarily between first connecting piece and the through-hole, then at the in-process of screwing up first connecting piece, can not extrude the pore wall of through-hole, can not extrude first connecting portion, thereby effectively avoid first connecting portion and second connecting portion at the in-process of assembly, cause the influence to the jar hole in the first cylinder body.
Further, under the condition that the second connecting portion are used for installing and positioning the air cylinder, the second connecting portion is matched with the first connecting piece, and the air cylinder is installed and positioned. If the second connecting portion is connected with the cylinder head, one end of the first connecting piece is connected with the cylinder head, the other end of the first connecting piece penetrates through the through hole in the first connecting portion to be connected with the first threaded hole in the second connecting portion, the situation that redundant threaded holes connected with the cylinder head are formed in the second connecting portion is eliminated, the structural strength of the second connecting portion is improved, the number of the connecting pieces is reduced, and the cost is saved.
In one possible design, a plurality of first assembling holes surrounding the central line of the first cylinder body are formed in the first connecting part, a plurality of second assembling holes and a plurality of second threaded holes surrounding the central line of the second cylinder body are formed in the second connecting part, and the plurality of first assembling holes and the plurality of second assembling holes are distributed in a one-to-one correspondence manner; the cylinder still includes a plurality of second connecting pieces, and every second connecting piece is connected a first pilot hole and a second pilot hole, and the second connecting portion are installed the location through the second screw hole to the cylinder.
In this design, connect first pilot hole and second pilot hole through the second connecting piece, realize the connection of first connecting portion and second connecting portion, and assemble the cylinder through the second screw hole that is different from the second pilot hole on the second connecting portion, if through bolted connection second screw hole and cylinder head, further weaken the influence that the deformation of second connecting portion caused first connecting portion, avoid the jar hole in the first cylinder body to take place deformation.
In one possible design, the second connecting portion is provided on an outer peripheral surface of the second cylinder body. Furthermore, the first connecting portion is attached to the second connecting portion, or the first connecting portion and the second connecting portion are distributed at intervals.
In this design, the second connecting portion is particularly disposed on the outer peripheral surface of the second cylinder body, which facilitates connection of the second connecting portion with the first connecting portion and also facilitates connection of the second connecting portion with the cylinder head. Further, first connecting portion can combine together with the second connecting portion, and at this moment, the second connecting portion set up in the one end of second jar body, and the in-process of establishing second jar body cover on first jar body, the second connecting portion are close to first connecting portion gradually until rather than the laminating, are favorable to first connecting portion and second connecting portion to stably connect, thereby avoid first cylinder body to drop or shift by a wide margin for the second cylinder body from the second cylinder body. The first connecting portion also can be distributed with the second connecting portion at intervals, at the moment, one end of the second cylinder body is moved to the position of the first connecting portion, the second connecting portion can be located at one end, away from the first connecting portion, of the second cylinder body, or the second connecting portion is located at the middle part of the second cylinder body and the like, and the first connecting portion and the second connecting portion can be connected through connecting pieces such as longer bolts.
In one possible design, the first cylinder body comprises a first cylinder body and a first connecting part which are connected, a cylinder hole is formed in the first cylinder body, and the first connecting part is located at one end of the first cylinder body; the second cylinder body comprises a second cylinder body, a third connecting part and a fourth connecting part which are connected, a mounting hole is formed in the second cylinder body, and the third connecting part and the fourth connecting part are arranged on the second cylinder body; the first connecting portion is connected with the third connecting portion, and the fourth connecting portion is used for installing and positioning the air cylinder.
In this design, specifically make first cylinder body include first cylinder body and the first connecting portion that first cylinder body is connected, make the second cylinder body include second cylinder body, third connecting portion and the fourth connecting portion that are connected to set up the cylinder hole in first cylinder body, set up the mounting hole in this internal setting of second cylinder, make second cylinder body can overlap and establish on first cylinder body. By making the first connecting part located at one end of the first cylinder body, the interference of the second cylinder body with the first connecting part in the process of sleeving the first cylinder body can be effectively avoided. Through making first connecting portion be connected with the third connecting portion to be connected through external structures such as fourth connecting portion and cylinder head, in order to install the location to the cylinder, can effectively avoid the deformation that fourth connecting portion take place at the in-process with the cylinder head assembly on the first cylinder body is transmitted through the second cylinder body, also can avoid the deformation that fourth connecting portion take place to transmit on first connecting portion through third connecting portion, and then on transmitting the first cylinder body, avoid the jar hole in the first cylinder body to take place deformation.
The second cylinder body with different sizes and shapes can be replaced to be sleeved on the first cylinder body, the cylinders with different sizes and structures can be assembled, the connection of the cylinders and external structures such as frames and cylinder heads with different assembly requirements is facilitated, and the universality of the cylinders is improved.
In one possible design, the second cylinder body further includes a fifth connecting portion provided on the second cylinder body, and the fifth connecting portion is also used for mounting and positioning of the cylinder.
In this design, through making the second cylinder body still including setting up the fifth connecting portion on the second cylinder body, connect external structure such as frame through the fifth connecting portion, because there is the fit-up clearance between mounting hole and the first cylinder body, can avoid the cylinder hole in the first cylinder body that the fifth connecting portion receive extruded deformation influences of connecting pieces such as bolts at the in-process of assembly when realizing cylinder and frame assembly.
In one possible design, the fifth connecting portion includes a mount provided on an outer peripheral surface of the second cylinder body.
In this design, through making the fifth connecting portion include the mount table, make the second cylinder pass through the mount table and be connected to the frame, be favorable to improving the installation stability of cylinder.
In one possible design, the number of the mounting platforms is one, and the mounting platforms are annular and are arranged on the outer peripheral surface of the second cylinder body in a surrounding mode; or the number of the installation platforms is a plurality of, the installation platforms are blocky, and the installation platforms are symmetrically distributed around the central line of the second cylinder body and are arranged on the peripheral surface of the second cylinder body.
In this design, the quantity of mount table can be one, and at this moment, the mount table is cyclic annular, encircles and sets up on the outer peripheral face of second jar body, makes things convenient for the cylinder to pass through the mount table steady mounting in the frame. Or the quantity of mount table is a plurality of, and at this moment, the mount table is cubic, and a plurality of mount tables center on the central line symmetric distribution of second jar body, for example a plurality of mount tables fall into two sets ofly, and the quantity of every group mount table is at least one, and two sets of mount tables interval 180 distribute in the both sides of second jar body, are favorable to the mount table to stabilize to be set up in the frame, and then make things convenient for the cylinder to pass through the mount table steady mounting in the frame.
In one possible design, the mounting table is provided with a connecting hole, and the mounting table is used for mounting and positioning the air cylinder through the connecting hole.
In the design, a connecting hole, such as a through hole or a threaded hole, is particularly formed in the mounting table, and the second cylinder body and the rack can be mounted by penetrating the connecting hole through a bolt to extend into the rack.
In one possible design, the first cylinder block is sintered into an integral structure using a powder metallurgy process; the second cylinder body is sintered into an integrated structure by adopting a powder metallurgy process.
In the design, the first cylinder body is sintered into an integrated structure through the powder metallurgy process, the second cylinder body is sintered into an integrated structure through the powder metallurgy process, the cylinder is cast and molded in the related technology, the size precision of a blank is poor, the number of surfaces needing to be processed is large, the processing technology is still complex, the first cylinder body and the second cylinder body are more efficient to mold, the size and the precision of the blank are easy to guarantee, subsequent processing procedures are reduced, and the production efficiency is improved while the process cost is reduced.
The utility model discloses a second aspect provides a cylinder head subassembly, include: the cylinder according to any one of the above technical solutions; the cylinder head is connected with the second cylinder body; and the frame is connected with the second cylinder body.
The utility model provides a cylinder head subassembly owing to have as above-mentioned any cylinder in the technical scheme, and then has the beneficial effect of above-mentioned any technical scheme, differs a perusal here. In addition, the second cylinder body of the cylinder is connected with the cylinder head and the frame, so that the installation and the positioning of the cylinder are realized, and the problems of cylinder hole deformation caused by connection of the cylinder and the cylinder head and cylinder hole deformation caused by connection of the cylinder and the frame in the related technology are solved.
In one possible embodiment, the cylinder head is connected to the second connection of the second cylinder, or the cylinder head is connected to the fourth connection of the second cylinder; the frame is connected with the fifth connecting part of the second cylinder body.
In this design, the cylinder head is specifically connected to the second connecting portion of the second cylinder block, or the cylinder head is connected to the fourth connecting portion of the second cylinder block, so that the cylinder head and the cylinder are assembled. The frame is assembled with the cylinder by connecting the frame with the fifth connecting portion of the second cylinder body.
A third aspect of the present invention provides a reciprocating compressor, comprising: a cylinder head assembly as claimed in any one of the preceding claims.
The utility model provides a reciprocating compressor owing to have cylinder head subassembly as in any one of above-mentioned technical scheme, and then has the beneficial effect of above-mentioned any one technical scheme, differs a perusal here.
Further, the reciprocating compressor further comprises a shell, a motor, a crankshaft, a connecting rod, a piston and the like, the cylinder head assembly, the motor and the crankshaft are all arranged in the shell, the piston is arranged in the cylinder, the connecting rod is connected with the crankshaft and the piston, and the motor drives the crankshaft to rotate, so that the connecting rod drives the piston to reciprocate in a cylinder hole of the cylinder.
A fourth aspect of the present invention provides a refrigeration apparatus, including: a reciprocating compressor according to any one of the above technical solutions.
The utility model provides a refrigeration plant owing to have reciprocating compressor as in any one of above-mentioned technical scheme, and then has the beneficial effect of above-mentioned any one technical scheme, differs a perk here.
Furthermore, the refrigeration equipment also comprises a condenser, a throttling element, an evaporator, various valve bodies and the like, wherein the outlet of the reciprocating compressor is communicated with the condenser, the throttling element is arranged between the condenser and the evaporator, the outlet of the evaporator is communicated with the inlet of the reciprocating compressor, and the various valve bodies are distributed on a pipeline connecting the components, such as a four-way valve, so as to control the refrigeration and heating cycles of the refrigeration equipment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 shows a schematic structural view of a cylinder according to an embodiment of the present invention;
figure 2 shows a schematic cross-sectional view of a cylinder of an embodiment of the invention;
fig. 3 shows a schematic front view of a first cylinder of an embodiment of the invention;
figure 4 shows a schematic top view of a first cylinder of an embodiment of the invention;
fig. 5 shows a schematic front view of a second cylinder of an embodiment of the invention;
fig. 6 shows a schematic top view of a second cylinder according to an embodiment of the invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
100 first cylinder block, 110 first cylinder body, 111 cylinder hole, 120 first connection portion, 121 through hole, 200 second cylinder block, 210 second cylinder body, 211 mounting hole, 220 second connection portion, 221 first threaded hole, 230 mounting table, 231 connection hole.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A cylinder according to some embodiments of the present invention is described below with reference to fig. 1 to 6.
The first embodiment is as follows:
as shown in fig. 1, 2, 3 and 5, a cylinder includes: a first cylinder block 100 having a cylinder hole 111 therein; the second cylinder 200, the second cylinder 200 is equipped with the mounting hole 211, the second cylinder 200 is set up outside the first cylinder 100 through the mounting hole 211; wherein, there is an assembly gap between the mounting hole 211 and the first cylinder block 100, and the second cylinder block 200 is used for mounting and positioning the cylinder.
The utility model provides a split cylinder, including first cylinder body 100 and second cylinder body 200, specifically make first cylinder body 100 be equipped with cylinder hole 111 that is used for holding the piston, make second cylinder body 200 have mounting hole 211 in, and make second cylinder body 200 cover establish on first cylinder body 100 through mounting hole 211, make mounting hole 211 and first cylinder body 100 between have an assembly clearance, for example mounting hole 211 and first cylinder body 100 clearance fit, make second cylinder body 200 be used for the installation location of cylinder, that is the cylinder wholly passes through second cylinder body 200 and frame, external structure such as cylinder head is connected, because the existence of mounting clearance between mounting hole 211 and the cylinder hole 100, can effectively avoid among the correlation technique integral type cylinder with the cylinder head, in-process such as part assembly such as frame, receive the extrusion of connecting piece such as bolt and lead to the 111 local appearance deformation of cylinder, lead to the emergence of the wearing and tearing condition of piston, the deformation of the second cylinder 200 connected to the external structure is prevented from affecting the first cylinder 100, and the performance of the compressor using the cylinder is ensured.
Moreover, because the cylinder is designed to be split, the second cylinder body 200 with different sizes and shapes can be replaced and sleeved on the first cylinder body 100, and the cylinders with different sizes and structures can be assembled, so that the connection of the cylinders and external structures such as frames and cylinder heads with different assembly requirements is facilitated, and the universality of the cylinders is improved.
Example two:
on the basis of the first embodiment, as shown in fig. 3 to 6, the first cylinder block 100 is further defined to include a first cylinder body 110 and a first connecting portion 120 which are connected, the cylinder hole 111 is formed in the first cylinder body 110, and the first connecting portion 120 is located at one end of the first cylinder body 110; the second cylinder block 200 includes a second cylinder body 210 and a second connecting portion 220 connected to each other, a mounting hole 211 is formed in the second cylinder body 210, and the second connecting portion 220 is disposed on the second cylinder body 210; the first connecting portion 120 is connected to the second connecting portion 220, and the second connecting portion 220 is used for mounting and positioning the cylinder.
In this embodiment, as shown in fig. 4 and 6, by making the first cylinder block 100 include the first cylinder body 110 and the first connecting portion 120 connected, making the second cylinder block 200 include the second cylinder body 210 and the second connecting portion 220 connected, and providing the cylinder hole 111 in the first cylinder body 110, and providing the mounting hole 211 in the second cylinder body 210, the second cylinder body 210 can be fitted over the first cylinder body 110. By positioning the first connecting portion 120 at one end of the first cylinder body 110, the interference between the second cylinder body 210 and the first connecting portion 120 during the process of sleeving the first cylinder body 110 can be effectively avoided. As shown in fig. 1 and 2, by connecting the first connecting portion 120 and the second connecting portion 220, and connecting the second connecting portion 220 and the cylinder head to mount and position the cylinder, the deformation of the second connecting portion 220 during the process of assembling the cylinder head can be effectively prevented from being transmitted to the first cylinder body 110 through the second cylinder body 210, and the deformation of the second connecting portion 220 can be also prevented from being transmitted to the first connecting portion 120 and not transmitted to the first cylinder body 110, and further, the deformation of the cylinder hole 111 in the first cylinder block 100 can be prevented.
Further, the second connecting portion 220 is provided on the outer circumferential surface of the second cylinder body 210.
Further, the first connecting portion 120 may be attached to the second connecting portion 220, at this time, the second connecting portion 220 is disposed at one end of the second cylinder body 210, and in the process of sleeving the second cylinder body 210 on the first cylinder body 110, the second connecting portion 220 is gradually close to the first connecting portion 120 until being attached to the first connecting portion 120, which is beneficial to stable connection between the first connecting portion 120 and the second connecting portion 220, thereby preventing the first cylinder body 100 from dropping from the second cylinder body 200 or greatly shifting relative to the second cylinder body 200. Or the first connecting portion 120 and the second connecting portion 220 may be spaced apart from each other, in this case, one end of the second cylinder body 210 moves to the position of the first connecting portion 120, the second connecting portion 220 may be located at one end of the second cylinder body 210 away from the first connecting portion 120, or the second connecting portion 220 may be located at the middle of the second cylinder body 210, and the first connecting portion 120 and the second connecting portion 220 may be connected by a long connecting member such as a bolt.
In a specific embodiment, as shown in fig. 3 and 5, the first connecting portion 120 is provided with a plurality of through holes 121 surrounding a center line of the first cylinder body 110, the second connecting portion 220 is provided with a plurality of first threaded holes 221 surrounding a center line of the second cylinder body 210, and the plurality of through holes 121 and the plurality of first threaded holes 221 are distributed in a one-to-one correspondence; the cylinder further includes a plurality of first connectors (not shown), each of which is coupled to one of the first screw holes 221 through one of the through holes 121. The second connecting portion 220 is used for installing and positioning the cylinder through the first connecting member.
In this embodiment, specifically, the first connection portion 120 is provided with a plurality of through holes 121 surrounding a center line of the first cylinder body 110, the second connection portion 220 is provided with a plurality of first threaded holes 221 surrounding a center line of the second cylinder body 210, and the first connection member penetrates through the through holes 121 and is connected with the first threaded holes 221, so that not only is the connection between the first connection portion 120 and the second connection portion 220 achieved, but also a gap is inevitably formed between the first connection member and the through holes 121 after the first connection member is matched with the first threaded holes 221, and in the process of screwing the first connection member, the hole wall of the through hole 121 cannot be extruded, and the first connection portion 120 cannot be extruded, so that the influence on the cylinder hole 111 in the first cylinder body 100 in the assembling process of the first connection portion 120 and the second connection portion 220 is effectively avoided.
Further, under the condition that the second connecting portion 220 is used for installing and positioning the cylinder, the second connecting portion 220 is matched with the first connecting piece, and the cylinder is installed and positioned. If the second connecting portion 220 is connected with the cylinder head, one end of the first connecting member is connected with the cylinder head, and the other end of the first connecting member passes through the through hole 121 on the first connecting portion 120 to be connected with the first threaded hole 221 on the second connecting portion 220, so that the situation that the second connecting portion 220 is provided with redundant threaded holes connected with the cylinder head and the like is avoided, the structural strength of the second connecting portion 220 is improved, the number of connecting members is reduced, and the cost is saved.
In another specific embodiment, the first connecting portion 120 is provided with a plurality of first mounting holes (not shown) surrounding a center line of the first cylinder body 110, the second connecting portion 220 is provided with a plurality of second mounting holes (not shown) and a plurality of second threaded holes (not shown) surrounding a center line of the second cylinder body 210, and the plurality of first mounting holes and the plurality of second mounting holes are distributed in a one-to-one correspondence; the cylinder further includes a plurality of second connectors (not shown), each of which connects one of the first assembly holes and one of the second assembly holes, and the second connection portion 220 is used for fixing and positioning the cylinder through the second threaded hole.
In this embodiment, the first assembly hole and the second assembly hole are connected through the second connecting member, so as to connect the first connecting portion 120 and the second connecting portion 220, and the cylinder is assembled through the second threaded hole different from the second assembly hole in the second connecting portion 220, for example, the second threaded hole is connected with the cylinder head through a bolt, so as to further weaken the influence of the deformation of the second connecting portion 220 on the first connecting portion 120, and avoid the deformation of the cylinder hole 111 in the first cylinder block 100.
Example three:
on the basis of the first embodiment, the first cylinder block 100 is further defined to include a first cylinder body 110 and a first connecting portion 120 which are connected, a cylinder hole 111 is formed in the first cylinder body 110, and the first connecting portion 120 is located at one end of the first cylinder body 110; the second cylinder block 200 includes a second cylinder body 210, a third connecting portion (not shown) and a fourth connecting portion (not shown), which are connected to each other, wherein a mounting hole 211 is formed in the second cylinder body 210, and the third connecting portion and the fourth connecting portion are both disposed on the second cylinder body 210; the first connecting portion 120 is connected to the third connecting portion, and the fourth connecting portion is used for mounting and positioning the cylinder.
In this embodiment, specifically, the first cylinder block 100 includes a first cylinder body 110 and a first connecting portion 120 connected to the first cylinder body 110, the second cylinder block 200 includes a second cylinder body 210, a third connecting portion and a fourth connecting portion connected to each other, a cylinder hole 111 is provided in the first cylinder body 110, and a mounting hole 211 is provided in the second cylinder body 210, so that the second cylinder body 210 can be fitted over the first cylinder body 110. By positioning the first connecting portion 120 at one end of the first cylinder body 110, the interference between the second cylinder body 210 and the first connecting portion 120 during the process of sleeving the first cylinder body 110 can be effectively avoided. Through making first connecting portion 120 be connected with the third connecting portion to be connected with outer structure such as cylinder head through fourth connecting portion, in order to install the location to the cylinder, can effectively avoid the deformation that fourth connecting portion take place at the in-process with the cylinder head assembly on the second cylinder body 210 transmits first cylinder body 110, also can avoid the deformation that fourth connecting portion take place to transmit first connecting portion 120 through the third connecting portion on, and then transmit first cylinder body 110, avoid cylinder hole 111 in first cylinder body 100 to take place deformation.
Further, the first connection portion 120 and the third connection portion have a fitting gap therebetween.
The second cylinder body 200 with different sizes and shapes can be replaced to be sleeved on the first cylinder body 100, and cylinders with different sizes and structures can be assembled, so that the connection of the cylinders and external structures such as frames and cylinder heads with different assembly requirements is facilitated, and the universality of the cylinders is improved.
Further, a third connecting portion is provided on the outer circumferential surface of the second cylinder body 210.
Further, the first connection portion 120 may be combined with the third connection portion, or the first connection portion 120 may be spaced apart from the third connection portion.
Example four:
on the basis of any of the above embodiments, it is further defined that the second cylinder block 200 further includes a fifth connecting portion disposed on the second cylinder body 210, and the fifth connecting portion is also used for installing and positioning the cylinder.
In this embodiment, by making the second cylinder body 200 further include a fifth connecting portion disposed on the second cylinder body 210, and connecting an external structure such as a frame through the fifth connecting portion, since the mounting hole 211 and the first cylinder body 110 have an assembly gap therebetween, it is possible to prevent the fifth connecting portion from being deformed by a connecting member such as a bolt and affecting the cylinder hole 111 in the first cylinder body 110 during assembly while achieving assembly of the cylinder and the frame.
Further, the fifth connecting portion includes a mounting table 230, and the mounting table 230 is provided on the outer circumferential surface of the second cylinder body 210. By connecting the second cylinder block 200 to the frame through the mounting table 230, it is advantageous to improve the mounting stability of the cylinder.
Further, the number of the mounting platforms 230 is one, and the mounting platforms 230 are annular and are circumferentially disposed on the outer circumferential surface of the second cylinder body 210; or the number of the mounting stages 230 is plural, the mounting stages 230 are block-shaped, and the plurality of mounting stages 230 are symmetrically distributed around the center line of the second cylinder body 210 and are disposed on the outer circumferential surface of the second cylinder body 210. For example, the plurality of mounting platforms 230 are divided into two groups, the number of each group of mounting platforms 230 is at least one, and the two groups of mounting platforms 230 are distributed on two sides of the second cylinder body 210 at intervals of 180 degrees, so that the mounting platforms 230 can be stably erected on the rack, and the air cylinder can be conveniently and stably mounted on the rack through the mounting platforms 230.
Further, the mounting table 230 is provided with a connection hole 231, and the mounting table 230 performs mounting and positioning of the air cylinder through the connection hole 231. The connection hole 231 may be a through hole 121 or a threaded hole, and a bolt passes through the connection hole 231 and extends into the frame, so as to mount the second cylinder 200 to the frame.
Example five:
on the basis of any one of the above embodiments, the first cylinder block 100 is further limited to be sintered into an integrated structure by adopting a powder metallurgy process; the second cylinder 200 is sintered into an integrated structure using a powder metallurgy process.
In this embodiment, the first cylinder body 100 is sintered into an integrated structure by a powder metallurgy process, the second cylinder body 200 is sintered into an integrated structure by a powder metallurgy process, and compared with the related art in which a cylinder is cast and molded, the blank has poor dimensional accuracy, more surfaces to be processed and still more complex processing process, the first cylinder body 100 and the second cylinder body 200 are molded more efficiently, the blank dimension and accuracy are easy to guarantee, so that the subsequent processing procedures are reduced, the process cost is reduced, and the production efficiency is improved.
Of course, in other embodiments, the first cylinder block 100 and the second cylinder block 200 may be integrally formed in other manners, such as casting, and the like, and also fall within the protection scope of the present application.
To sum up, the utility model discloses a cylinder for reciprocating compressor that whole embodiments superpose formed, the shaping technology is high-efficient, and blank size and precision are easily guaranteed, and subsequent processing procedure is less, has improved production efficiency when consequently reducing process cost. Meanwhile, the cylinder for the reciprocating compressor is used for the split crankcase, so that the assembly precision requirement of the cylinder and the frame can be reduced, and the problem that the cylinder hole 111 is deformed in the process of increasing the assembly can be solved, therefore, the same cylinder blank can meet the requirements of compressors with different displacement volumes, and the universality of parts is greatly improved.
Example six:
a cylinder head assembly, comprising: a cylinder as in any one of the above embodiments; a cylinder head (not shown) connected to the second cylinder block 200; a frame (not shown) connected to the second cylinder 200.
The cylinder head assembly provided in this embodiment has the cylinder according to any one of the above embodiments, and thus has the beneficial effects of any one of the above embodiments, which are not repeated herein. In addition, the second cylinder body 200 of the cylinder is connected with the cylinder head and the frame, so that the installation and the positioning of the cylinder are realized, and the problems of deformation of the cylinder hole 111 caused by connection of the integrated cylinder and the cylinder head and deformation of the cylinder hole 111 caused by connection of the cylinder and the frame in the related art are solved.
Further, the cylinder head is connected with the second connection portion 220 of the second cylinder block 200, or the cylinder head is connected with the fourth connection portion of the second cylinder block 200; the frame is connected with the fifth connection portion of the second cylinder 200.
Specifically, the cylinder head is connected to the second connection portion 220 of the second cylinder block 200, or the cylinder head is connected to the fourth connection portion of the second cylinder block 200, so that the cylinder head and the cylinder are assembled. The assembly of the frame with the cylinder is achieved by connecting the frame with the fifth connecting portion of the second cylinder block 200.
Example seven:
a reciprocating compressor comprising: a cylinder head assembly as in any one of the previous embodiments. The utility model provides a reciprocating compressor owing to have cylinder head subassembly as in any one of above-mentioned embodiment, and then has the beneficial effect of any one of above-mentioned embodiment, and it is here not redundant to describe.
Further, the reciprocating compressor further comprises a shell, a motor, a crankshaft, a connecting rod, a piston and the like, the cylinder head assembly, the motor and the crankshaft are all arranged in the shell, the piston is arranged in the cylinder, the connecting rod is connected with the crankshaft and the piston, and the motor drives the crankshaft to rotate, so that the connecting rod drives the piston to reciprocate in a cylinder hole 111 of the cylinder.
Example eight:
a refrigeration appliance comprising: a reciprocating compressor as claimed in any one of the above embodiments. The utility model provides a refrigeration plant owing to have reciprocating compressor as in any one of above-mentioned embodiment, and then has the beneficial effect of above-mentioned any one embodiment, and it is here not redundant to describe.
Furthermore, the refrigeration equipment also comprises a condenser, a throttling element, an evaporator, various valve bodies and the like, wherein the outlet of the reciprocating compressor is communicated with the condenser, the throttling element is arranged between the condenser and the evaporator, the outlet of the evaporator is communicated with the inlet of the reciprocating compressor, and the various valve bodies are distributed on a pipeline connecting the components, such as a four-way valve, so as to control the refrigeration and heating cycles of the refrigeration equipment.
In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. A cylinder, comprising:
a first cylinder having a cylinder bore therein;
the second cylinder body is internally provided with a mounting hole and sleeved outside the first cylinder body through the mounting hole;
and an assembly gap is formed between the mounting hole and the first cylinder body, and the second cylinder body is used for mounting and positioning the cylinder.
2. Cylinder according to claim 1,
the first cylinder body comprises a first cylinder body and a first connecting part which are connected, the cylinder hole is formed in the first cylinder body, and the first connecting part is located at one end of the first cylinder body;
the second cylinder body comprises a second cylinder body and a second connecting part which are connected, the mounting hole is formed in the second cylinder body, and the second connecting part is arranged on the second cylinder body;
the first connecting portion is connected with the second connecting portion, and the second connecting portion is used for installing and positioning the air cylinder.
3. The cylinder of claim 2,
the cylinder also comprises a first connecting piece, and the second connecting piece is used for installing and positioning the cylinder through the first connecting piece;
the first connecting piece penetrates through the first connecting portion, and an assembling gap is formed between the first connecting piece and the first connecting portion.
4. Cylinder according to claim 3,
the first connecting part is provided with a plurality of through holes surrounding the center line of the first cylinder body, the second connecting part is provided with a plurality of first threaded holes surrounding the center line of the second cylinder body, and the plurality of through holes and the plurality of first threaded holes are distributed in a one-to-one correspondence manner;
each first connecting piece penetrates through one through hole to be connected with one first threaded hole.
5. The cylinder of claim 2,
the first connecting part is provided with a plurality of first assembling holes surrounding the central line of the first cylinder body, the second connecting part is provided with a plurality of second assembling holes and a plurality of second threaded holes surrounding the central line of the second cylinder body, and the plurality of first assembling holes and the plurality of second assembling holes are distributed in a one-to-one correspondence manner;
the cylinder still includes a plurality of second connecting pieces, every the second connecting piece connect one first pilot hole and one the second pilot hole, the second connecting portion pass through the second screw hole is right the cylinder is installed the location.
6. The cylinder according to any one of claims 2 to 5,
the second connecting portion is provided on an outer peripheral surface of the second cylinder body;
the first connecting part is attached to the second connecting part, or the first connecting part and the second connecting part are distributed at intervals.
7. Cylinder according to claim 1,
the first cylinder body comprises a first cylinder body and a first connecting part which are connected, the cylinder hole is formed in the first cylinder body, and the first connecting part is located at one end of the first cylinder body;
the second cylinder body comprises a second cylinder body, a third connecting part and a fourth connecting part which are connected, the mounting hole is formed in the second cylinder body, and the third connecting part and the fourth connecting part are arranged on the second cylinder body;
the first connecting portion is connected with the third connecting portion, and the fourth connecting portion is used for installing and positioning the air cylinder.
8. The cylinder according to any one of claims 2 to 5, 7,
the second cylinder body further comprises a fifth connecting portion arranged on the second cylinder body, and the fifth connecting portion is also used for installing and positioning the cylinder.
9. The cylinder of claim 8,
the fifth connecting portion includes a mount table provided on an outer peripheral surface of the second cylinder body.
10. The cylinder of claim 9,
the number of the mounting platforms is one, and the mounting platforms are annular and are arranged on the outer peripheral surface of the second cylinder body in a surrounding mode; or
The mounting tables are in block shapes and are symmetrically distributed along the center line of the second cylinder body and arranged on the peripheral surface of the second cylinder body.
11. The cylinder of claim 9,
and the mounting platform is provided with a connecting hole, and the mounting platform is used for mounting and positioning the air cylinder through the connecting hole.
12. The cylinder according to any one of claims 1 to 5, 7,
the first cylinder body is sintered into an integrated structure by adopting a powder metallurgy process;
the second cylinder body is sintered into an integrated structure by adopting a powder metallurgy process.
13. A cylinder head assembly, comprising:
a cylinder as claimed in any one of claims 1 to 12;
the cylinder head is connected with the second cylinder body;
and the frame is connected with the second cylinder body.
14. A reciprocating compressor, comprising:
the cylinder head assembly of claim 13.
15. A refrigeration apparatus, comprising:
the reciprocating compressor of claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020404121.3U CN211950807U (en) | 2020-03-24 | 2020-03-24 | Cylinder, cylinder head assembly, reciprocating compressor and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020404121.3U CN211950807U (en) | 2020-03-24 | 2020-03-24 | Cylinder, cylinder head assembly, reciprocating compressor and refrigeration equipment |
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| CN211950807U true CN211950807U (en) | 2020-11-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446201A (en) * | 2020-03-24 | 2021-09-28 | 安徽美芝制冷设备有限公司 | Cylinder, cylinder head assembly, reciprocating compressor and refrigeration equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446201A (en) * | 2020-03-24 | 2021-09-28 | 安徽美芝制冷设备有限公司 | Cylinder, cylinder head assembly, reciprocating compressor and refrigeration equipment |
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