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CN-122014625-A - Mounting structure and method for lower silencer of horizontal compressor

CN122014625ACN 122014625 ACN122014625 ACN 122014625ACN-122014625-A

Abstract

The invention relates to the technical field of compressors, and particularly discloses a mounting structure and a mounting method of a lower silencer of a horizontal compressor, wherein bolt holes for assembling a lower cylinder cover and the lower silencer are separately arranged, namely the lower cylinder cover and the lower silencer are respectively fixed by adopting independent first mounting holes and second mounting holes, so that the assembly process flow is obviously simplified, and the assembly efficiency is improved. In addition, due to the structural characteristics of the lower silencer, the required torque value is relatively low during assembly, corresponding and fixing can be achieved through manual assembly, and tool equipment special for lower silencer assembly is not needed to be additionally arranged, so that the operation difficulty in the assembly process is further reduced, the installation efficiency and convenience are improved, the damage risk of parts caused by improper torque is reduced, and the quality and reliability of the whole assembly are improved.

Inventors

  • FENG SHUANG
  • XIE LIQING
  • YANG BEI
  • PAN FEI
  • CAO FENG

Assignees

  • 上海海立电器有限公司

Dates

Publication Date
20260512
Application Date
20260316

Claims (10)

  1. 1. A mounting structure of a lower muffler of a horizontal compressor, comprising: the device comprises a lower cylinder cover (1), wherein a plurality of first mounting holes (111) are formed in the lower cylinder cover (1); the lower silencer (2) is provided with a plurality of second mounting holes (211), and the first mounting holes (111) and the second mounting holes (211) are arranged in a staggered manner along the radial direction of the lower cylinder cover (1); The first bolts (3) are arranged in a one-to-one correspondence with the first mounting holes (111), and each first bolt (3) penetrates through the corresponding first mounting hole (111) and is connected to a pump body section of the horizontal compressor; the second bolts (4) are arranged in a one-to-one correspondence with the second mounting holes (211), and each second bolt (4) penetrates through the corresponding second mounting hole (211) and is connected to the lower cylinder cover (1).
  2. 2. The mounting structure of a lower muffler of a horizontal compressor as set forth in claim 1, wherein the center of the lower muffler (2) is located on the same axis as the center of the lower cylinder head (1), a plurality of the first mounting holes (111) are uniformly distributed along the circumferential direction of the lower cylinder head (1), and the centers of the first mounting holes (111) are located on a first pitch circle, the diameter of the first pitch circle is PCD 1 , a plurality of the second mounting holes (211) are uniformly distributed along the circumferential direction of the lower muffler (2), and the centers of the second mounting holes (211) are located on a second pitch circle, the diameter of the second pitch circle is PCD 2 , the outer diameter of the lower cylinder head (1) is D 1 , wherein D 1 、PCD 1 and PCD 2 satisfy the condition of 1 ＜PCD 2 ＜D 1 .
  3. 3. The mounting structure of a lower muffler of a horizontal compressor as set forth in claim 2, wherein a cavity (212) is provided in the lower muffler (2), an inner diameter of the cavity (212) is D 2 , and a diameter of a head of the first bolt (3) is D 3 , wherein D 2 、PCD 1 and D 3 satisfy D 2 ＞PCD 1 +D 3 .
  4. 4. The mounting structure of a lower muffler for a horizontal compressor according to claim 1, wherein the lower cylinder head (1) includes a cylinder head body (101) and a plurality of first lugs (102), the plurality of first lugs (102) are circumferentially protruded on an outer circumferential wall of the cylinder head body (101), the plurality of first mounting holes (111) are formed in the cylinder head body (101), the lower muffler (2) includes a cover body (201) and a plurality of second lugs (202), the plurality of second lugs (202) are circumferentially protruded on an outer circumferential wall of the cover body (201), the plurality of second mounting holes (211) are formed in one-to-one correspondence with the plurality of second lugs (202), the plurality of second lugs (202) are circumferentially protruded on an outer circumferential wall of the cover body (201), and the plurality of second lugs (202) are axially disposed in one-to-one correspondence with the plurality of first lugs (102), and the second bolts (4) are passed through the second mounting holes (211) and are connected to the corresponding first lugs (102).
  5. 5. The mounting structure of a lower muffler for a horizontal compressor according to claim 1, wherein a lower flange (5) is convexly arranged on the outer periphery of the lower muffler (2) along the direction towards the lower cylinder cover (1), the lower flange (5) is attached to the outer peripheral wall of the lower cylinder cover (1), the thickness of the lower muffler (2) is t, the height of the lower cylinder cover (1) is h 1 , the height of the lower flange (5) is h 2 , and the conditions of h 1 , t and h 2 are satisfied that t < h 2 ≤（t+0.8h 1 ).
  6. 6. The mounting structure of a horizontal compressor lower silencer according to claim 5, wherein the second bolt (4) has a screw length h 3 , wherein h 1 , t and h 3 satisfy t < h 3 ≤（t+0.5h 1 ).
  7. 7. The mounting structure of a lower silencer of a horizontal compressor according to claim 2, wherein the pump body section is encapsulated in a shell (6) of the horizontal compressor, the pump body section comprises an upper cylinder (7), a lower cylinder (8), an intermediate plate (9) and an upper cylinder cover (10), the intermediate plate (9) is encapsulated between the upper cylinder (7) and the lower cylinder (8), the upper cylinder (7) and the lower cylinder (8) are encapsulated between the upper cylinder cover (10) and the lower cylinder cover (1), and the first bolt (3) sequentially penetrates through the first mounting hole (111), the lower cylinder (8) and the intermediate plate (9) and is connected to the upper cylinder (7).
  8. 8. The mounting structure of a lower muffler for a horizontal compressor as set forth in claim 7, wherein the outer diameters of the lower cylinder (8) and the upper cylinder (7) are D, and the outer diameter of the lower muffler (2) is D 4 , wherein D, D 4 and D 1 satisfy D < D 1 ≤D 4 .
  9. 9. The mounting structure of a lower muffler for a horizontal compressor as set forth in any one of claims 1 to 8, wherein the lower muffler (2) has a collar portion (11), the collar portion (11) is provided with an inner hole, the lower cylinder head (1) is provided with a journal (12) protruding upward, and a wall of the inner hole is in interference fit with an outer wall of the journal (12).
  10. 10. A method for installing a lower muffler for a horizontal compressor, which is adapted to an installation structure of a lower muffler for a horizontal compressor as claimed in any one of claims 1 to 9, comprising the steps of: s100, assembling the lower cylinder cover (1) to the pump body section through a plurality of first bolts (3); S200, pressing in a rotor of the horizontal compressor; S300, assembling the lower muffler (2) to the lower cylinder cover (1) through a plurality of second bolts (4).

Description

Mounting structure and method for lower silencer of horizontal compressor Technical Field The invention relates to the technical field of compressors, in particular to a mounting structure and a mounting method of a lower silencer of a horizontal compressor. Background Currently, compressors are classified into horizontal compressors and vertical compressors according to the installation manner thereof. The horizontal compressor has the advantages of low gravity center, small vibration and the like, so that the horizontal compressor is widely used in application systems such as refrigerators, air conditioners and the like. Among them, the lower muffler is a key component for reducing exhaust noise in the horizontal compressor, and the lower muffler of the horizontal compressor is additionally provided with an oil suction pipe structure, which is generally called an oil suction cover, as compared with the vertical compressor. Due to the design difference, in the assembly process, the horizontal compressor cannot integrally assemble the lower cylinder cover and the oil suction cover like the vertical compressor. The characteristic ensures that related parts of the horizontal compressor need to be installed step by step or independently in the assembly process so as to ensure the correct connection and sealing performance between the oil suction cover and the lower cylinder cover, thereby ensuring the stability and reliability of the whole operation of the compressor. The conventional assembly scheme of the lower silencer of the horizontal compressor is generally that a lower cylinder cover is assembled to a pump body by utilizing a plurality of concentric bolts, and after a rotor is pressed in and accurate positioning is ensured, the lower silencer (namely the oil suction cover) is assembled to the pump body by utilizing another set of bolts. However, the assembly mode has obvious defects that on one hand, the assembly process of the lower silencer and the lower cylinder cover needs to share the same assembly equipment, so that not only are higher requirements on the machining precision, the positioning function and the assembly torque of the assembly equipment provided, but also the excessive occupation of equipment resources can be caused to influence the overall production efficiency, and on the other hand, the lower silencer is fixed by a small number of bolts, the bolts are not distributed uniformly enough, the uneven stress during assembly is easily caused, and the problems of poor sealing and even leakage are caused, and for the horizontal compressor, if the refrigerant leakage occurs in the lower silencer, the working performance of the compressor is directly influenced, and the service life of the compressor is obviously shortened. Accordingly, there is a need for a mounting structure and method of a muffler for a horizontal compressor to solve the above problems. Disclosure of Invention The invention aims to provide a mounting structure and a mounting method of a lower silencer of a horizontal compressor, which can effectively improve the assembly efficiency and convenience of the lower silencer of the horizontal compressor. In order to achieve the above purpose, the invention adopts the following technical scheme: In one aspect, the present invention provides a mounting structure of a lower muffler of a horizontal compressor, comprising: the lower cylinder cover is provided with a plurality of first mounting holes; The lower silencer is provided with a plurality of second mounting holes, and the first mounting holes and the second mounting holes are arranged in a staggered manner along the radial direction of the lower cylinder cover; The first bolts are arranged in one-to-one correspondence with the first mounting holes, and each first bolt penetrates through the corresponding first mounting hole and is connected to the pump body section of the horizontal compressor; the second bolts are arranged in one-to-one correspondence with the second mounting holes, and each second bolt penetrates through the corresponding second mounting hole and is connected to the lower cylinder cover. As an optimized technical scheme of the installation structure of the lower silencer of the horizontal compressor, the center of the lower silencer and the center of the lower cylinder cover are located on the same axis, a plurality of first installation holes are evenly distributed along the circumferential direction of the lower cylinder cover, the circle centers of the first installation holes are located on a first pitch circle, the diameter of the first pitch circle is PCD 1, a plurality of second installation holes are evenly distributed along the circumferential direction of the lower silencer, the circle centers of the second installation holes are located on a second pitch circle, the diameter of the second pitch circle is PCD 2, the outer diameter of the lower cylinder cover is D 1, and D 1、PCD1 and PCD 2 meet th