CN115523119A

CN115523119A - Cover plate assembly vibration reduction structure

Info

Publication number: CN115523119A
Application number: CN202210827024.9A
Authority: CN
Inventors: 姚辉军; 毛小华; 徐乐乐; 邵磊; 张光耀
Original assignee: Jiaxipera Compressor Co Ltd
Current assignee: Jiaxipera Compressor Co Ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-12-27

Abstract

The invention discloses a cover plate assembly vibration reduction structure which comprises a cover plate and an inner exhaust pipe connected with the cover plate, wherein a bending structure is arranged on the inner exhaust pipe, a rubber damping sleeve is sleeved on the bending structure, the inner diameter of the rubber damping sleeve is larger than the outer diameter of the inner exhaust pipe, a corner is arranged on the bending structure, and the rubber damping sleeve passing through the corner is in interference fit with an inner exhaust pipe. In the running process of the compressor, the rubber vibration damping sleeve structure can absorb vibration transmitted to the cover plate assembly by a part of the machine core and vibration transmitted to the inner exhaust pipe by irregular movement of gas in the pipe through the damping structure of the rubber vibration damping sleeve structure; the vibration transmitted to the inner exhaust pipe by the irregular movement of the gas in the pipe is reduced through the space shock absorption of the shock absorption assembly.

Description

Cover plate assembly vibration reduction structure

Technical Field

The invention relates to the technical field of compressors and refrigeration compressors thereof, in particular to a cover plate assembly vibration reduction structure.

Background

The existing reciprocating piston compressor has the advantages of small volume, light weight, high efficiency, simple and reliable structure and the like, thereby being widely applied to the field of refrigerators. The reciprocating piston compressor consists of a machine core, a support system, an exhaust system, etc. The machine core is a moving part of the compressor and converts low-temperature and low-pressure gas into high-temperature and high-pressure gas. The air suction, exhaust, compression, expansion and other movements of the compressor are completed. The support system generally comprises a shell, a seat spring and the like, wherein the movement is placed on the shell through the seat spring, and the spring and the shell play a supporting role. The exhaust system generally comprises a cover plate assembly, an exhaust pipe and the like, and the exhaust side airflow channel comprises the cover plate assembly and the exhaust pipe. The vibrations of the compressor are generally generated by the movement of the moving parts, mainly transmitted to the outside through the seat spring in the support system, the housing and the cover assembly in the exhaust system.

For example, chinese patent publication No. CN212296762U, published 2021, 01.05 entitled "a refrigerator compressor throttle structure" includes a crankcase, a cover plate assembly, a throttle plate, and a fixing screw, wherein the crankcase is provided with an installation groove, the throttle plate is disposed in the installation groove, the cover plate assembly compresses the throttle plate, the fixing screw sequentially penetrates through the cover plate assembly and the throttle plate and is fixed with the crankcase, the throttle plate is provided with a step-down hole, and a fit gap is provided between the step-down hole and the fixing screw.

The prior patent has the following disadvantages: the inner exhaust pipe of the existing compressor is provided with a bent pipeline, the airflow in the bent pipeline is large in change and easy to vibrate, and the compressor can transmit large vibration outwards through the cover plate assembly.

Disclosure of Invention

The invention aims to solve the problem that the inner exhaust pipe of the existing compressor is provided with a bent pipeline, the airflow in the bent pipeline is changed greatly and vibration is easy to generate, so that the compressor transmits large vibration outwards through a cover plate assembly.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an apron subassembly damping structure, including the apron, with the interior exhaust pipe of cover connection, be equipped with curved structure on the interior exhaust pipe, the cover is equipped with rubber shock attenuation cover on the curved structure, rubber shock attenuation cover's internal diameter is greater than interior exhaust pipe's external diameter, be equipped with the turning on the curved structure, through the rubber shock attenuation cover and the interior exhaust pipe interference fit of corner. One end of the inner exhaust pipe is connected with the cover plate, and the other end of the inner exhaust pipe is connected with the outer exhaust pipe. And the inner exhaust pipe is provided with a rubber damping sleeve. The rubber shock-absorbing sleeve is of a rubber damping structure and is placed at the position (the corner of the inner exhaust pipe) where the air flow of the inner exhaust pipe changes to the maximum degree. This rubber shock attenuation cover passes through mould integrated into one piece, wears earlier on the straight tube of interior blast pipe, rubber shock attenuation cover and interior blast pipe clearance fit, behind the interior blast pipe return bend, the deformation of interior blast pipe return bend is utilized to the shape that the rubber shock attenuation cover can match interior blast pipe certainly, makes the corner interference fit of blast pipe including rubber shock attenuation cover and interior blast pipe. In the operation process of the compressor, the rubber shock absorption sleeve structure can absorb vibration transmitted to the cover plate assembly by a part of the machine core and vibration transmitted to the inner exhaust pipe by irregular movement of gas in the pipe through the damping structure of the rubber shock absorption sleeve structure.

Preferably, a gap is formed between the inner side walls of the two ends of the rubber shock-absorbing sleeve passing through the corners and the inner exhaust pipe.

Preferably, the inner exhaust pipe is welded to the cover plate and then fastened to the crankcase by screws.

Preferably, when the rubber shock-absorbing sleeve is sleeved on the bending structure of the inner exhaust pipe, the rubber shock-absorbing sleeve is U-shaped, and the rubber shock-absorbing sleeve can be divided into an upper air section, a lower air section and a corner section for connecting the upper air section and the lower air section.

Preferably, be located the rubber shock absorber on the curved structure of interior exhaust pipe and sheathe in and be equipped with damper, damper including the cover establish the fixing base of turning section, rotate the shock attenuation piece of setting on the fixing base, the cover establish the gas section and down the gas section on the shock attenuation rubber circle and be used for connecting the shock attenuation piece with the spring of shock attenuation rubber circle, the shock attenuation piece is located the below of shock attenuation rubber circle.

Preferably, one end of the spring, which is connected with the damping sheet, is provided with a first ball joint, and the damping sheet is provided with a first hinge groove matched with the first ball joint.

Preferably, one end of the spring connected with the damping rubber ring is provided with a second ball hinge joint, the damping rubber ring is internally provided with a damping hole, a first mounting hole matched with an upper air section of the rubber damping sleeve and a second mounting hole matched with a lower air section of the rubber damping sleeve, the damping hole is positioned between the first mounting hole and the second mounting hole, the damping hole is respectively intersected with the first mounting hole and the second mounting hole, and the inner wall of the damping hole is provided with a second hinge groove matched with the second ball hinge joint.

Preferably, the inner side wall of the shock absorption hole is in a wave surface shape.

Preferably, the first hinge grooves are uniformly distributed along the edge of the damping sheet, and the second hinge grooves are uniformly distributed along the inner wall of the damping hole.

Preferably, a third ball hinge joint is arranged below the damping sheet, the damping sheet is rotatably connected with the fixed seat through a second ball hinge joint, and the lower end of the fixed seat is fixed on the rubber damping sleeve through a hoop.

Therefore, the invention has the following beneficial effects: (1) In the operation process of the compressor, the rubber shock absorption sleeve structure can absorb vibration transmitted to the cover plate assembly by a part of the machine core and vibration transmitted to the inner exhaust pipe by irregular movement of gas in the pipe through a damping structure of the rubber shock absorption sleeve structure; (2) The vibration transmitted to the inner exhaust pipe by the irregular motion of the gas in the pipe is reduced through the space shock absorption of the shock absorption assembly.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a rubber shock-absorbing sleeve according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 4 is a schematic structural view of a shock-absorbing assembly and a rubber shock-absorbing sleeve disposed on an inner exhaust pipe according to a second embodiment of the present invention.

FIG. 5 is a schematic structural view of a cushion rubber ring and a cushion sheet according to a second embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a spring according to a second embodiment of the present invention.

As shown in the figure: a cover plate 1, an inner exhaust pipe 2,

A rubber shock-absorbing sleeve 3, an upper air section 3.1, a lower air section 3.2, a corner section 3.3,

A fixed seat 4, a damping sheet 5, a third ball joint 5.1,

A damping rubber ring 6, a damping hole 6.1, a first mounting hole 6.2, a second mounting hole 6.3, a second hinge groove 6.4,

Spring 7, first ball joint 7.1, second ball joint 7.2.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention is further described with reference to the accompanying drawings and the detailed description.

Embodiment one, as shown in fig. 1, fig. 2 an apron 1 subassembly damping structure, including apron 1, the interior exhaust pipe 2 of being connected with apron 1, be equipped with the curved structure on the interior exhaust pipe 2, the cover is equipped with rubber damping sleeve 3 on the curved structure, the internal diameter of rubber damping sleeve 3 is greater than the external diameter of interior exhaust pipe 2, is equipped with the turning on the curved structure, through 2 interference fit of interior exhaust pipe with rubber damping sleeve 3 of corner. One end of the inner exhaust pipe 2 is connected with the cover plate 1, and the other end is connected with the outer exhaust pipe. The inner exhaust pipe 2 is provided with a rubber damping sleeve. The rubber shock-absorbing sleeve is of a rubber damping structure and is placed at the position (the corner of the inner exhaust pipe 2) where the airflow change of the inner exhaust pipe 2 is maximum. This rubber shock attenuation cover passes through mould integrated into one piece, wears earlier on the straight tube of interior blast pipe 2, rubber shock attenuation cover and interior 2 clearance fit of blast pipe, behind the 2 return bends of interior blast pipe, the rubber shock attenuation cover can be from the shape of matcing interior blast pipe 2, utilizes the deformation of interior 2 return bends of blast pipe, makes rubber shock attenuation cover and interior blast pipe 2 including the corner interference fit of blast pipe 2. In the operation process of the compressor, the rubber shock-absorbing sleeve structure can absorb vibration transmitted to the cover plate 1 assembly by a part of machine core and vibration transmitted to the inner exhaust pipe 2 by irregular movement of gas in the pipe through a damping structure of the rubber shock-absorbing sleeve structure.

Gaps exist between the inner side walls of the two ends of the rubber shock-absorbing sleeve 3 passing through the corners and the inner exhaust pipe 2. The inner exhaust pipe 2 is welded with the cover plate 1 and then fastened on the crankcase through screws.

In a second embodiment, the specific structure of the present embodiment refers to the first embodiment, and the difference is that: as shown in fig. 1 and 2, when the rubber damper sleeve 3 is sleeved on the curved structure of the inner exhaust pipe 2, the rubber damper sleeve 3 is U-shaped, and the rubber damper sleeve 3 can be divided into an upper air section 3.1, a lower air section 3.2 and a corner section 3.3 for connecting the upper air section 3.1 and the lower air section 3.2. Be located and be equipped with damper on the rubber shock attenuation cover 3 on the curved structure of interior exhaust pipe 2, damper establishes the fixing base 4 at corner section 3.3 including the cover, rotates the shock attenuation piece 5 of setting on fixing base 4, the cover establish the last section of qi 3.1 and the section of qi 3.2 down on the yielding rubber circle 6 and be used for connecting the spring 7 of shock attenuation piece 5 and yielding rubber circle 6, and the shock attenuation piece 5 is located the below of yielding rubber circle 6. As shown in fig. 5 and 6, a first ball joint 7.1 is disposed at one end of the spring 7 connected to the damping sheet 5, and a first hinge groove matched with the first ball joint 7.1 is disposed on the damping sheet 5. As shown in fig. 5 and 6, a second ball hinge 7.2 is disposed at one end of the spring 7 connected to the damping rubber ring 6, a damping hole 6.1 is disposed in the damping rubber ring 6, a first mounting hole 6.2 is matched with the upper air section 3.1 of the rubber damping sleeve 3, and a second mounting hole 6.3 is matched with the lower air section 3.2 of the rubber damping sleeve 3, the damping hole 6.1 is located between the first mounting hole 6.2 and the second mounting hole 6.3, the damping hole 6.1 is intersected with the first mounting hole 6.2 and the second mounting hole 6.3, and a second hinge groove 6.4 is disposed on the inner wall of the damping hole 6.1 and matched with the second ball hinge 7.2. The lateral wall of the upper air section 3.1 is provided with a limit groove matched with the damping rubber ring 6, and the lateral wall of the lower air section 3.2 is provided with a limit groove matched with the damping rubber ring 6. The damper 5 has a cylindrical shape.

The vibration reduction structure of the cover plate 1 assembly in the embodiment is used by matching the vibration reduction assembly with the rubber vibration reduction sleeve 3, so that the vibration transmitted by the inner exhaust pipe 2 is reduced to the greatest extent. The spring 7 slope setting between 5 and the yielding rubber circle 6 of shock attenuation piece, and the yielding rubber circle 6 is the oval column structure of class, and the shock attenuation piece 5 is cylindric structure, is the form of dispersing after the spring 7 is connected, and the lower extreme of spring 7 draws in towards the shock attenuation piece 5, and this damper can be in the undirectional shock attenuation of space that X axle, Y axle and Z axle constitute. The existing damping spring 7 only absorbs shock along the linear direction of the damping spring 7, and the damping structure adapts to the non-directional vibration of the inner exhaust pipe 2 through space damping, so that the vibration of the inner exhaust pipe 2 caused by irregular motion of gas in the pipe is greatly reduced.

As shown in fig. 5, the inner side wall of the damping hole 6.1 is wave-shaped.

As shown in fig. 5, the first hinge grooves are uniformly distributed along the edge of the damping plate 5, and the second hinge grooves 6.4 are uniformly distributed along the inner wall of the damping hole 6.1.

As shown in fig. 4, a third ball joint 5.1 is arranged below the damping sheet 5, the damping sheet 5 is rotatably connected with the fixing seat 4 through a second ball joint 7.2, and the lower end of the fixing seat 4 is fixed on the rubber damping sleeve 3 through a hoop. Fixed through the staple bolt, easy to assemble and dismantlement. Damping

sheet

5 and 4 ball joint of fixing base for reduce between damping sheet 5 and the fixing base 4 and damage, the different interior exhaust pipe 2 of adaptation turning degree.

The above embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereby. All equivalent changes in the shape and structure of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides an apron subassembly damping structure, including apron (1), with apron connection's interior exhaust pipe (2), its characterized in that, be equipped with the bending structure on the interior exhaust pipe, the structural cover of bending is equipped with rubber shock attenuation cover (3), the internal diameter of rubber shock attenuation cover is greater than interior exhaust pipe's external diameter, the structural turning that is equipped with of bending, through the rubber shock attenuation cover and the interior exhaust pipe interference fit of corner.

2. The vibration damping structure of a sheathing assembly according to claim 1, wherein a gap exists between inner sidewalls of both ends of the rubber damping sleeve passing through the corners and the inner exhaust pipe.

3. The cover plate assembly vibration damping structure according to claim 1 or 2, wherein the inner exhaust pipe is welded to the cover plate and then fastened to the crankcase by screws.

4. The vibration damping structure of a cover plate assembly according to claim 1, wherein when the rubber damping sleeve is sleeved on the bending structure of the inner exhaust pipe, the rubber damping sleeve is U-shaped, and the rubber damping sleeve can be divided into an upper air section (3.1), a lower air section (3.2) and a corner section (3.3) for connecting the upper air section and the lower air section.

5. The cover plate assembly vibration damping structure according to claim 4, wherein a vibration damping assembly is arranged on the rubber vibration damping sleeve on the bending structure of the inner exhaust pipe, the vibration damping assembly comprises a fixed seat (4) sleeved on the corner section, a vibration damping sheet (5) rotatably arranged on the fixed seat, a vibration damping rubber ring (6) sleeved on the upper air section and the lower air section, and a spring (7) used for connecting the vibration damping sheet and the vibration damping rubber ring, and the vibration damping sheet is positioned below the vibration damping rubber ring.

6. The cover plate assembly vibration damping structure according to claim 5, characterized in that the end of the spring connected with the damping sheet is provided with a first ball joint (7.1), and the damping sheet is provided with a first hinge groove matched with the first ball joint.

7. The cover plate assembly vibration damping structure according to claim 5 or 6, wherein one end of the spring connected with the damping rubber ring is provided with a second ball joint (7.2), the damping rubber ring is internally provided with a damping hole (6.1), a first mounting hole (6.2) matched with the upper air section of the rubber damping sleeve and a second mounting hole (6.3) matched with the lower air section of the rubber damping sleeve, the damping hole is positioned between the first mounting hole and the second mounting hole, the damping hole is respectively intersected with the first mounting hole and the second mounting hole, and the inner wall of the damping hole is provided with a second hinge groove (6.4) matched with the second ball joint.

8. The cover assembly vibration damping structure according to claim 7, wherein the inner side wall of the vibration damping hole is formed in a wave shape.

9. The vibration damping structure for a cover plate assembly according to claim 7, wherein the first hinge grooves are uniformly distributed along the edge of the damper sheet, and the second hinge grooves are uniformly distributed along the inner wall of the damper hole.

10. The cover plate assembly vibration damping structure according to claim 5 or 6, wherein a third ball joint (5.1) is arranged below the damping sheet, the damping sheet is rotatably connected with a fixed seat through a second ball joint, and the lower end of the fixed seat is fixed on the rubber damping sleeve through a hoop.