Screw compressor assembly tool and assembly method

Abstract

The invention discloses a screw compressor assembly tool and method, and belongs to the technical field of screw compressors, the screw compressor assembly tool comprises a butt joint assembly, the butt joint assembly comprises a butt joint shaft and a base part arranged on the butt joint shaft in a sleeving mode, and the butt joint shaft is used for being arranged in a bearing hole of an air inlet seat and a bearing hole of an exhaust seat in a penetrating mode; the base part is used for being arranged in an air cylinder hole of an air cylinder body in a penetrating mode, and the base part is provided with a first peripheral face used for being attached to the hole wall of the air cylinder hole; the adjusting assembly is arranged on the base part and located on the side, away from the compression exhaust side of the air cylinder hole, of the base part, and the adjusting assembly is used for abutting against the base part relative to the hole wall of the air cylinder hole so that the first peripheral face can be attached to the compression exhaust side. Precise butt joint of the air cylinder body, the air inlet base and the air exhaust base is achieved, and the assembling error of the air cylinder body, the air inlet base and the air exhaust base after a male rotor and a female rotor are assembled subsequently and the compression air exhaust side in an air cylinder hole is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of screw compressors, and in particular relates to a screw compressor assembly tool and an assembly method. Background Art

[0002] The shell structure of the screw compressor is mostly assembled with a multi-stage shell. Taking the three-stage screw compressor as an example, the shell of the screw compressor usually includes a cylinder block, an intake seat and an exhaust seat. When assembling the screw compressor, the cylinder hole of the cylinder block needs to be aligned with the bearing holes of the intake seat and the exhaust seat respectively to ensure the gap size between the compression and exhaust side of the cylinder hole and the male rotor and the female rotor.

[0003] However, the cylinder holes of some screw compressors are often set as non-cylindrical holes, which makes it more difficult to accurately connect the cylinder body, intake seat and exhaust seat. If the clearance error between the male rotor, female rotor and the compression and exhaust side of the cylinder hole is large, it is easy to cause large matching errors and severe wear of the male rotor and female rotor, affecting the normal operation of the whole machine. Summary of the invention

[0004] Purpose of the invention: An embodiment of the present application provides a screw compressor assembly tool, aiming to solve the above-mentioned technical problems; another purpose of the present application is to provide an assembly method applied to the above-mentioned screw compressor assembly tool.

[0005] Technical solution: A screw compressor assembly tool described in an embodiment of the present application includes:

[0006] A docking assembly, the docking assembly comprising a docking shaft and a base sleeved on the docking shaft, the docking shaft is used to penetrate the bearing hole of the intake seat and the bearing hole of the exhaust seat respectively, so that the bearing hole of the intake seat is directly opposite to the bearing hole of the exhaust seat, the base is used to penetrate the cylinder hole of the cylinder body, and the base has a first outer peripheral surface for fitting the hole wall of the cylinder hole;

[0007] An adjusting component is arranged on the base, and the adjusting component is located on the side of the base away from the compression and exhaust side of the cylinder hole, and the adjusting component is used to push the base relative to the hole wall of the cylinder hole so that the first outer peripheral surface fits the compression and exhaust side.

[0008] In some embodiments, the base is provided with an adjustment groove, and the adjustment groove penetrates the first outer peripheral surface in a direction perpendicular to the axis of the docking shaft;

[0009] The adjustment component comprises:

[0010] A push member, the push member is movably disposed in the adjustment slot, and the push member has a push portion for extending out of the adjustment slot;

[0011] An adjusting member is connected to the base and is transmission-connected to the push member. In response to the adjustment of the adjusting member, the push member can push the base relative to the hole wall of the cylinder hole so that the first outer peripheral surface fits the compressed exhaust side.

[0012] In some embodiments, the base is provided with a through hole, and the through hole is connected to the adjustment groove along the axial direction of the docking shaft;

[0013] The adjusting member comprises:

[0014] A screw portion, the screw portion is inserted into the through hole and has a threaded section;

[0015] a first moving part, the first moving part is movably disposed in the adjusting groove, the first moving part is threadedly connected to the threaded section, the first moving part is provided with a first inclined surface facing the push member, and the push member is provided with a second inclined surface matching the first inclined surface;

[0016] In response to the screw portion rotating around its own axis, the first moving portion can move along the axial direction of the screw portion and push the second inclined surface through the first inclined surface, so that the pushing portion pushes the base portion against the hole wall of the cylinder hole.

[0017] In some embodiments, the adjustment assembly also includes an elastic member, which is disposed in the adjustment slot and connects the base and the push member. The elastic member is used to push the push member to be received in the adjustment slot. In response to the push of the first movable part, the push member can overcome the elastic force of the elastic member and make the push part extend out of the adjustment slot.

[0018] In some embodiments, the push member is provided with a through hole, the base is located in the adjustment groove and is provided with a connecting portion, the connecting portion passes through the through hole, the elastic member is arranged in the through hole, and the elastic member connects the hole wall of the through hole and the connecting portion to push the push member along a direction perpendicular to the axis of the docking shaft.

[0019] In some embodiments, each of the bases is provided with a plurality of adjustment grooves, at least some of the adjustment grooves are arranged axially along the docking shaft, the adjustment assembly includes a plurality of the push members, and each of the adjustment grooves is provided with the push member, and the adjustment member is transmission-connected to the plurality of the push members.

[0020] In some embodiments, the adjusting member further comprises a second movable portion, the second movable portion is movably disposed in the adjusting slot, the second movable portion is connected to the screw portion, the second movable portion is provided with a third inclined surface facing the push member, and the third inclined surface matches the second inclined surface;

[0021] In response to the screw portion rotating around its own axis and moving along its own axial direction, the second moving portion can move along the axial direction of the screw portion and push the second inclined surface through the third inclined surface, so that the pushing portion pushes the base against the hole wall of the cylinder hole.

[0022] In some embodiments, the screw compressor assembly tool further includes:

[0023] A first positioning seat, wherein the first positioning seat has a first hole, and the first positioning seat is used to connect the exhaust seat so that the center of the first hole is coaxially aligned with the center of the bearing hole of the exhaust seat;

[0024] A second positioning seat, wherein the second positioning seat has a second hole, and the second positioning seat is used to connect to the air inlet seat so that the center of the second hole is coaxially aligned with the center of the bearing hole of the air inlet seat;

[0025] The first positioning seat is sleeved on the docking shaft through the first hole, the second positioning seat is sleeved on the docking shaft through the second hole, and the axis of the docking shaft passes through the center of the first hole and the center of the second hole.

[0026] In some embodiments, the first positioning seat includes a first plug-in portion and a first fixing portion, the first plug-in portion is inserted into the bearing hole of the exhaust seat, and at least a portion of the first fixing portion is disposed outside the bearing hole of the exhaust seat, and the first hole is disposed in the first plug-in portion;

[0027] The second positioning seat includes a second plug-in portion and a second fixing portion, the second plug-in portion is inserted into the bearing hole of the air intake seat, and at least part of the second fixing portion is arranged outside the bearing hole of the air intake seat, and the second hole is arranged in the second plug-in portion.

[0028] Accordingly, a screw compressor assembly method according to an embodiment of the present application is applied to the above-mentioned screw compressor assembly tool, including:

[0029] Insert the docking assembly into the cylinder hole of the cylinder body;

[0030] Adjusting the adjustment assembly to the thrust base so that the first outer peripheral surface fits the compression and exhaust side of the cylinder hole;

[0031] Directing the cylinder bore of the cylinder block toward the bearing hole of one of the exhaust seat and the intake seat;

[0032] Passing the docking shaft through the bearing hole of one of the two and fixing it;

[0033] locating a connection position between the cylinder block and the one;

[0034] directing the cylinder bore of the cylinder block toward the bearing hole of the other of the exhaust seat and the intake seat;

[0035] Passing the docking shaft through the bearing hole of the other one and fixing it;

[0036] locating a connection position between the cylinder block and the other;

[0037] disassembling the docking assembly and the adjusting assembly;

[0038] The cylinder block, the intake seat and the exhaust seat are connected.

[0039] In some embodiments, before the docking shaft is inserted into the bearing hole of the exhaust seat, the cylinder body and the exhaust seat are arranged in a vertical direction so that the cylinder hole and the bearing hole of the exhaust seat are connected in the vertical direction.

[0040] In some embodiments, before the docking shaft is inserted into the bearing hole of the intake seat, the cylinder body and the intake seat are arranged in a vertical direction so that the cylinder hole and the bearing hole of the intake seat are connected in the vertical direction.

[0041] Beneficial effects: The screw compressor assembly tool of the embodiment of the present application includes a docking component and an adjustment component. The docking component includes a docking shaft and a base sleeved on the docking shaft. The docking shaft is used to penetrate the bearing hole of the intake seat and the bearing hole of the exhaust seat respectively, so that the bearing hole of the intake seat is opposite to the bearing hole of the exhaust seat. The base is used to penetrate the cylinder hole of the cylinder body, and the base has a first outer peripheral surface for fitting the hole wall of the cylinder hole. The adjustment component is arranged on the base, and the adjustment component is located on the side of the base away from the compression and exhaust side of the cylinder hole. The adjustment component is used to push the base relative to the hole wall of the cylinder hole so that the first outer peripheral surface fits the compression and exhaust side. When assembling the intake seat, cylinder block and exhaust seat of the screw compressor, the first outer peripheral surface of the base is pre-fitted to the compression and exhaust side through the adjustment component to ensure the gap size on the compression and exhaust side in the cylinder hole, so that the excess gap error can be set on the intake side opposite to the compression and exhaust side, and the maximum allowable error on the intake side in the cylinder hole is much larger than the gap error on the compression and exhaust side in the cylinder hole. The bearing hole of the intake seat and the bearing hole of the exhaust seat are docked in turn through the docking shaft, so that the two bearing holes are aligned with and locate the installation positions of the cylinder block and the intake seat, and the cylinder block and the exhaust seat, which is conducive to the precise docking of the cylinder block, the intake seat and the exhaust seat, and reduces the assembly error with the compression and exhaust side in the cylinder hole after the subsequent assembly of the male rotor and the female rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0043] Figure 1 It is a schematic diagram of the structure of the screw compressor and the assembly tooling after being assembled in the embodiment of the present application;

[0044] Figure 2 It is a schematic diagram of the exploded structure of the cylinder block, intake seat, exhaust seat and assembly tooling of the embodiment of the present application;

[0045] Figure 3 is a schematic structural diagram of an embodiment of the present application, looking directly at the exhaust seat on the side facing away from the intake seat;

[0046] Figure 4 yes Figure 3 Sectional view along line AA;

[0047] Figure 5 yes Figure 4 Enlarged view of part C;

[0048] Figure 6 yes Figure 3 Sectional view along line BB;

[0049] Figure 7 It is a schematic diagram of the exploded structure of the push member and the adjusting member in the embodiment of the present application;

[0050] Figure 8 It is a schematic diagram of the structure of the regulating component of the embodiment of the present application;

[0051] Fig. 9 It is a schematic diagram of the structure of the middle block in the embodiment of the present application;

[0052] Fig.10 is a schematic structural diagram of the second moving part of an embodiment of the present application;

[0053] Fig.11 It is a schematic diagram of the structure of the push member of the embodiment of the present application;

[0054] Figure numerals: 1, docking assembly; 10, docking shaft; 100, axis; 11, base; 110, first outer peripheral surface; 111, intermediate block; 112, end block; 113, adjustment groove; 114, through hole; 115, connecting part; 116, plane; 117, fifth pin hole; 118, sleeve hole; 2, adjustment assembly; 20, push piece; 200, push piece; 201, second inclined surface; 202, through hole; 203, make way groove; 21, adjustment piece; 210, screw rod; 2100, threaded section; 2101, screw head; 211, first moving part; 2110, first inclined surface; 2111, screw hole; 21 2. Second moving part; 2120. Third inclined surface; 2121. Groove; 2122. Adjustment hole; 22. Elastic member; 3. First positioning seat; 30. First hole; 31. First plug-in part; 32. First fixing part; 4. Second positioning seat; 40. Second hole; 41. Second plug-in part; 42. Second fixing part; 5. Cylinder body; 50. Cylinder hole; 51. Compression exhaust side; 52. Intake side; 53. First pin hole; 54. Fourth pin hole; 6. Intake seat; 60. First bearing hole; 61. Second pin hole; 62. Intake port; 7. Exhaust seat; 70. Second bearing hole; 71. Third pin hole; 72. Exhaust port. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0056] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.

[0057] The shell structure of the screw compressor is mostly assembled with a multi-stage shell. Taking the three-stage screw compressor as an example, the shell of the screw compressor usually includes a cylinder block, an intake seat and an exhaust seat. When assembling the screw compressor, the cylinder hole of the cylinder block needs to be aligned with the bearing holes of the intake seat and the exhaust seat respectively to ensure the gap size between the compression and exhaust side of the cylinder hole and the male rotor and the female rotor.

[0058] However, the cylinder holes of some screw compressors are often set as non-cylindrical holes, which makes it more difficult to accurately connect the cylinder block, intake seat and exhaust seat. In particular, the cylinder block needs to have cylinder holes corresponding to the male and female rotors, and multiple processing can easily cause large clearance errors between the male and female rotors and the compression and exhaust sides of the cylinder holes, which can easily lead to large matching errors and severe wear of the male and female rotors, affecting the normal operation of the whole machine.

[0059] In view of this, an embodiment of the present application discloses a screw compressor assembly tool, which can solve at least one of the above-mentioned defects.

[0060] Reference Figures 1 to 6 It should be noted that, in order to facilitate the description of the screw compressor assembly tooling disclosed in the embodiment of the present application, a three-stage screw compressor is used as a reference in this embodiment, and the screw compressor includes a cylinder block 5, an intake seat 6 and an exhaust seat 7.

[0061] Specifically, the screw compressor is a twin-screw structure, and the cylinder body 5 has two cylinder holes 50, and the two cylinder holes 50 correspond to the male rotor and the female rotor one by one. The intake seat 6 is provided with a first bearing hole 60 toward each cylinder hole 50, and the intake seat 6 is provided with an intake port 62 connected to the cylinder hole 50. The exhaust seat 7 is provided with a second bearing hole 70 toward each cylinder hole 50, and the exhaust seat 7 is provided with an exhaust port 72 connected to the cylinder hole 50, and the exhaust port 72 is close to the compression exhaust side 51 of the cylinder hole 50. It should be noted that, referring to Figure 1 and Figure 2 The cylinder body 5 is pre-drilled with a first pin hole 53 and a fourth pin hole 54 , the intake seat 6 is drilled with a second pin hole 61 corresponding to the first pin hole 53 , and the exhaust seat 7 is drilled with a third pin hole 71 corresponding to the fourth pin hole 54 .

[0062] Reference Figures 1 to 11 A screw compressor assembly tool includes a docking component 1 and an adjustment component 2.

[0063] The docking assembly 1 includes a docking shaft 10 and a base 11 sleeved on the docking shaft 10. It should be noted that, corresponding to the two cylinder holes 50 of the cylinder block 5, the two first bearing holes 60 of the intake seat 6 and the two second bearing holes 70 of the exhaust seat 7 shown in this embodiment, the docking assembly 1 in this embodiment is provided with two docking shafts 10 and corresponding bases 11. The docking shaft 10 is respectively penetrated through the first bearing hole 60 and the second bearing hole 70, so that the first bearing hole 60 is directly opposite to the second bearing hole 70. The base 11 is penetrated through the cylinder hole 50, and the base 11 has a first outer peripheral surface 110 for fitting the hole wall of the cylinder hole 50. The adjustment assembly 2 is arranged on the base 11, and the adjustment assembly 2 is located on the side of the base 11 away from the compression exhaust side 51 of the cylinder hole 50, and the adjustment assembly 2 is used to push the base 11 relative to the hole wall of the cylinder hole 50, so that the first outer peripheral surface 110 fits the compression exhaust side 51.

[0064] It should be noted that in the cylinder hole 50 of the cylinder body 5, the matching error requirement between the compression and exhaust side 51 and the male rotor and the female rotor is much higher than that on the intake side 52. The matching error between the compression and exhaust side 51 and the male rotor and the female rotor directly affects the performance and service life of the screw compressor.

[0065] When assembling the intake seat 6 , cylinder block 5 and exhaust seat 7 of the screw compressor, the first outer peripheral surface 110 of the base 11 is preliminarily fitted to the compression exhaust side 51 through the adjustment component 2 to ensure the gap size of the compression exhaust side 51 in the cylinder hole 50 .

[0066] It should be noted here that the size of the positive rotor and the negative rotor itself is smaller than the size of the cylinder hole 50. The base 11 fits the compression exhaust side 51 to avoid a large gap error among the positive rotor, the negative rotor and the wall of the cylinder hole 50 after the positive rotor and the negative rotor are replaced. It can also avoid interference wear caused by the small gap among the positive rotor, the negative rotor and the wall of the cylinder hole 50.

[0067] The excess clearance error is set on the intake side 52 opposite to the compression exhaust side 51, and the maximum allowable error of the intake side 52 in the cylinder hole 50 is much larger than the clearance error of the compression exhaust side 51 in the cylinder hole 50. The first bearing hole 60 and the second bearing hole 70 are docked in turn through the docking shaft 10 to align the first bearing hole 60 and the second bearing hole 70 with each other, and the installation positions of the cylinder body 5 and the intake seat 6, and the cylinder body 5 and the exhaust seat 7 are respectively positioned, which is conducive to the precise docking of the cylinder body 5, the intake seat 6 and the exhaust seat 7, and reduces the assembly error with the compression exhaust side 51 in the cylinder hole 50 after the subsequent assembly of the positive rotor and the negative rotor.

[0068] It should be noted that the above-mentioned method of positioning the installation positions of the cylinder block 5 and the intake seat 6, and the cylinder block 5 and the exhaust seat 7 can be to perform fine reaming on the pre-drilled first pin hole 53, the fourth pin hole 54, the second pin hole 61 and the third pin hole 71 to further accurately locate the installation positions of the cylinder block 5, the intake seat 6 and the exhaust seat 7, thereby facilitating the insertion of the pin shaft and further bolting the cylinder block 5, the intake seat 6 and the exhaust seat 7.

[0069] In some embodiments, reference Figure 2 , Figure 4 and Figure 7 The base 11 includes an intermediate block 111 and two end blocks 112. The two end blocks 112 correspond to each other and are installed at the opposite ends of the intermediate block 111 along the axial direction of the docking shaft 10. In addition to the above-mentioned first outer peripheral surface 110, the overall base 11 also has a plane 116 facing the other cylinder hole 50 to match the shape of the cylinder hole 50. The intermediate block 111 and the end block 112 are both provided with mutually connected sleeve holes 118 along the axial direction of the docking shaft 10, so as to facilitate direct sleeve installation on the docking shaft 10. The intermediate block 111 is also provided with a fifth pin hole 117 on the first outer peripheral surface 110, so as to facilitate the positioning and locking of the docking shaft 10 and the intermediate block 111 by means of a pin shaft and a bolt. The fixing principle is the existing technology and will not be repeated here.

[0070] In some embodiments, reference Figure 2 , Figures 4 to 9 The base 11 is provided with an adjustment groove 113, which penetrates the first outer peripheral surface 110 in a direction perpendicular to the axis 100 of the docking shaft 10. Specifically, the adjustment groove 113 is arranged on the end surface of the middle block 111 facing the end block 112, and after the end block 112 is connected to the middle block 111, the adjustment groove 113 only has an opening facing the hole wall of the cylinder hole 50.

[0071] The adjustment assembly 2 includes a push member 20 and an adjustment member 21. The push member 20 is movably disposed in the adjustment groove 113, and has a push portion 200 facing the hole wall of the cylinder hole 50. The adjustment member 21 is connected to the base 11 and is transmission-connected to the push member 20. In response to the adjustment of the adjustment member 21, the push portion 200 can extend out of the adjustment groove 113, abut against the hole wall of the cylinder hole 50, and push against the base 11, so that the first outer peripheral surface 110 fits the compressed exhaust side 51.

[0072] The adjusting member 21 is used in conjunction with the push member 20, and after the entire base 11 is introduced into the cylinder hole 50, the adjusting member 21 is adjusted to drive the push member 20 to move, so that the push portion 200 can abut against the hole wall of the cylinder hole 50. When the base 11 needs to be disassembled, the adjusting member 21 is adjusted again, so that the push member 20 is driven to move until the push portion 200 is separated from the hole wall of the cylinder hole 50, so as to facilitate the disassembly of the base 11.

[0073] In some embodiments, reference Figures 4 to 9 The base 11 is provided with a through hole 114, and the through hole 114 is connected to the adjustment groove 113 along the axial direction of the docking shaft 10. The through hole 114 actually passes through the middle block 111 and the end block 112 at the same time. The adjusting member 21 includes a screw portion 210 and a first movable portion 211. The screw portion 210 is inserted into the through hole 114, and the screw portion 210 has a threaded section 2100. The first movable portion 211 is movably arranged in the adjustment groove 113, and the first movable portion 211 is provided with a screw hole 2111, so that the threaded section 2100 can be threadedly connected. The first movable portion 211 is provided with a first inclined surface 2110 facing the push member 20, and the push member 20 is provided with a second inclined surface 201 that matches the first inclined surface 2110. In response to the screw portion 210 rotating around its own axis 100 , the first moving portion 211 can move along the axial direction of the screw portion 210 and push the second inclined surface 201 through the first inclined surface 2110 , so that the pushing portion 200 pushes the base 11 against the hole wall of the cylinder hole 50 .

[0074] It should be noted that the screw portion 210 further includes a screw head 2101 , and the screw head 2101 can be manually inserted into the adjustment slot 113 through one end of the through hole 114 to twist the entire screw portion 210 .

[0075] Through the cooperation of the first inclined surface 2110 and the second inclined surface 201 , the axial movement of the first movable portion 211 along the screw portion 210 can be converted into pushing the push member 20 to move in a direction perpendicular to the axial direction of the screw portion 210 , thereby enabling the push portion 200 to push the base 11 .

[0076] In order to facilitate timely storage of the push member 20, in some embodiments, refer to Figures 5 to 8 The adjustment component 2 also includes an elastic member 22, which is arranged in the adjustment groove 113, and the elastic member 22 connects the base 11 and the push member 20. The elastic member 22 is used to push the push member 20 so that the push member 20 is received in the adjustment groove 113. In response to the push of the first movable part 211, the push member 20 can overcome the elastic force of the elastic member 22 and make the push part 200 extend out of the adjustment groove 113.

[0077] Specifically, in some embodiments, the synchronization reference Figure 7 , Fig. 9 and Fig.10The push member 20 is provided with a through hole 202, and the base 11 is provided with a connecting portion 115 in the adjusting groove 113. The connecting portion 115 can actually be integrally formed with the middle block 111. After the end block 112 is connected to the middle block 111, the connecting portion 115 is simultaneously attached to the end block 112. The connecting portion 115 passes through the through hole 202, that is, the push member 20 can be sleeved on the connecting portion 115 through the through hole 202. The elastic member 22 is provided in the through hole 202, and the elastic member 22 connects the hole wall of the through hole 202 and the connecting portion 115 to push the push member 20, so as to push the push member 20 in a direction perpendicular to the axis 100 of the docking shaft 10.

[0078] In this embodiment, the elastic member 22 is provided on the side of the connecting portion 115 facing the docking shaft 10 as an example. The elastic member 22 can be a spring or other elastic structural member. The elastic member 22 can receive the push member 20 in the adjustment groove 113 by its own elastic force. With the push of the first moving part 211, the push member 20 and the connecting portion 115 relatively squeeze the elastic member 22 and make the push member 200 extend out of the adjustment groove 113. At this time, the elastic member 22 can also avoid the rigid collision between the push member 200 and the hole wall of the cylinder hole 50, which is conducive to improving the protection of the push member 20 and the cylinder body 5.

[0079] In some embodiments, reference Figures 4 to 7 , each base 11 is provided with a plurality of adjustment grooves 113, at least some of the adjustment grooves 113 are arranged along the axial direction of the docking shaft 10. In this embodiment, the intermediate block 111 is provided with adjustment grooves 113 at both ends along the axial direction of the docking shaft 10 as an example. The adjustment component 2 includes a plurality of push members 20, and each adjustment groove 113 is provided with a push member 20, and the adjustment member 21 is transmission-connected to the plurality of push members 20. By providing a plurality of adjustment grooves 113 and push members 20 along the axial direction of the docking shaft 10, it is beneficial to improve the uniformity of the push member 20 pushing the hole wall of the cylinder hole 50, and improve the accuracy of the overall adjustment component 2 in adjusting the assembly position of the cylinder body 5.

[0080] In some embodiments, reference Figures 5 to 9 The adjusting member 21 further includes a second moving portion 212, which is movably disposed in the adjusting groove 113, and is connected to the screw portion 210. The second moving portion 212 is provided with a third inclined surface 2120 facing the push member 20, and the third inclined surface 2120 is matched with the second inclined surface 201. In response to the screw portion 210 rotating around its own axis 100 and moving along its own axial direction, the second moving portion 212 can move along the axial direction of the screw portion 210 and push the second inclined surface 201 through the third inclined surface 2120, so that the push portion 200 pushes the base 11 relative to the hole wall of the cylinder hole 50.

[0081] Specifically, during the relative rotation of the screw portion 210 and the first movable portion 211, relative movement simultaneously occurs along the axial direction of the screw portion 210. In this embodiment, the second movable portion 212 is provided with a groove 2121 for the screw head 2101 to be embedded, that is, the screw head 2101 can push the second movable portion 212 to move synchronously with the screw portion 210, thereby enabling the first movable portion 211 and the second movable portion 212 to synchronously realize relative movement or opposite movement during the rotation of the screw portion 210, so as to synchronously push the hole wall of the cylinder hole 50 or synchronously be received into the corresponding adjustment groove 113.

[0082] In addition, in order to avoid obstruction of manual rotation of the screw head 2101 , the second movable portion 212 is further provided with an adjustment hole 2122 connected to the groove 2121 . The adjustment hole 2122 is also connected to the through hole 114 for manual rotation of the screw head 2101 .

[0083] In some embodiments, reference Figure 1 , Figure 2 and Figure 4 The screw compressor assembly tool also includes a first positioning seat 3 and a second positioning seat 4. The first positioning seat 3 has a first hole 30, and the first positioning seat 3 is connected to the exhaust seat 7 so that the center of the first hole 30 is coaxially aligned with the center of the bearing hole of the exhaust seat 7. The second positioning seat 4 has a second hole 40, and the second positioning seat 4 is connected to the intake seat 6 so that the center of the second hole 40 is coaxially aligned with the center of the bearing hole of the intake seat 6. The first positioning seat 3 is sleeved on the docking shaft 10 through the first hole 30, and the second positioning seat 4 is sleeved on the docking shaft 10 through the second hole 40, and the axis 100 of the docking shaft 10 passes through the center of the first hole 30 and the center of the second hole 40.

[0084] Specifically, in some embodiments, referring to Figure 1 , Figure 2 and Figure 4 The first positioning seat 3 includes a first plug-in portion 31 and a first fixing portion 32. The first plug-in portion 31 is inserted into the bearing hole of the exhaust seat 7, and at least a portion of the first fixing portion 32 is disposed outside the bearing hole of the exhaust seat 7. The first hole 30 is disposed in the first plug-in portion 31. The second positioning seat 4 includes a second plug-in portion 41 and a second fixing portion 42. The second plug-in portion 41 is inserted into the bearing hole of the intake seat 6, and at least a portion of the second fixing portion 42 is disposed outside the bearing hole of the intake seat 6. The second hole 40 is disposed in the second plug-in portion 41.

[0085] The first fixing portion 32 is provided with bolt holes that match the exhaust seat 7, so as to facilitate quick fixing to position the first plug-in portion 31. Similarly, the second fixing portion 42 is provided with bolt holes that match the intake seat 6, so as to facilitate quick fixing to position the second plug-in portion 41. The integral first positioning seat 3 and the second positioning seat 4 are intended to be used in conjunction with the docking shaft 10 to achieve quick alignment of the intake seat 6, the exhaust seat 7 and the cylinder body 5, and to achieve the accuracy of positioning and assembling the intake seat 6, the exhaust seat 7 and the cylinder body 5.

[0086] Accordingly, a screw compressor assembly method according to an embodiment of the present application is applied to the above-mentioned screw compressor assembly tool, including:

[0087] The docking assembly 1 is inserted into the cylinder hole 50 of the cylinder body 5; specifically, the two bases 11 are respectively connected to the corresponding docking shafts 10 through the sleeve holes 118, the docking shafts 10 and the corresponding bases 11 are fixedly connected, and then the bases 11 are inserted into the corresponding cylinder holes 50.

[0088] The adjusting assembly 2 is adjusted to the push base 11 so that the first outer peripheral surface 110 fits the compression exhaust side 51 of the cylinder hole 50; specifically, the screw portion 210 is driven to rotate by rotating the screw head 2101, and the screw portion 210 pushes the second movable portion 212 to move, and at the same time, the first movable portion 211 can move along the axial direction of the screw portion 210, so that the first movable portion 211 and the second movable portion 212 can synchronously push the hole wall of the cylinder hole 50.

[0089] The cylinder hole 50 of the cylinder body 5 is oriented toward the bearing hole of one of the exhaust seat 7 and the intake seat 6; taking the exhaust seat 7 as an example, the first plug-in parts 31 of the two first positioning seats 3 are respectively inserted into the corresponding second bearing holes 70, and then the exhaust seat 7 is connected through the first fixing part 32 to achieve the fixation of the exhaust seat 7 and the first positioning seat 3.

[0090] The docking shaft 10 is passed through one of the bearing holes and fixed; taking the exhaust seat 7 as an example, the docking shaft 10 is passed through the second bearing hole 70 and the first hole 30 .

[0091] Position the connection position of the cylinder block 5 and the exhaust seat 7; take the exhaust seat 7 as an example, that is, the third pin hole 71 and the fourth pin hole 54 are precisely reamed, and after the positioning pin is inserted, the cylinder block 5 and the exhaust seat 7 are precisely aligned. It should be noted that in order to reduce the risk of relative movement of the cylinder block 5 and the exhaust seat 7 during precision reaming, the cylinder block 5 and the exhaust seat 7 can be bolted in advance.

[0092] The cylinder hole 50 of the cylinder body 5 is oriented toward the bearing hole of the other one of the exhaust seat 7 and the intake seat 6; taking the intake seat 6 as an example, the second plug-in portion 41 of the second positioning seat 4 is inserted into the corresponding first bearing hole 60, and then the intake seat 6 is connected through the second fixing portion 42 to achieve the fixation of the intake seat 6 and the second positioning seat 4.

[0093] The docking shaft 10 is inserted into the bearing hole of the other and fixed; taking the air inlet seat 6 as an example, the docking shaft 10 is inserted into the first bearing hole 60 and the second hole 40 .

[0094] Position the connection position of the cylinder block 5 and the other; take the intake seat 6 as an example, that is, the second pin hole 61 and the first pin hole 53 are precisely reamed, and after the positioning pin is inserted, the cylinder block 5 and the intake seat 6 are precisely aligned. Similarly, in order to reduce the risk of relative movement of the cylinder block 5 and the intake seat 6 during precision reaming, the cylinder block 5 and the intake seat 6 can be fixed with bolts in advance.

[0095] Disassemble the docking assembly 1 and the adjustment assembly 2;

[0096] Connect the cylinder block 5, the intake seat 6 and the exhaust seat 7. At this time, the cylinder block 5, the intake seat 6 and the exhaust seat 7 are bolted together, and the positions of the three are precisely aligned by means of the first pin hole 53, the fourth pin hole 54, the second pin hole 61 and the third pin hole 71 which are precisely reamed.

[0097] In some embodiments, before the docking shaft 10 is inserted into the bearing hole of the exhaust seat 7, the cylinder body 5 and the exhaust seat 7 are arranged in the vertical direction so that the cylinder hole 50 and the bearing hole of the exhaust seat 7 are connected in the vertical direction.

[0098] It should be noted that due to the weight of the docking assembly 1 itself, when the exhaust seat 7 and the cylinder body 5 are arranged in the vertical direction, there is a risk of relative movement between the docking assembly 1 and the cylinder body 5. Therefore, at this time, the first plug-in portions 31 of the two first positioning seats 3 can be respectively inserted into the corresponding second bearing holes 70, and then the exhaust seat 7 is connected through the first fixing portion 32 to achieve the fixation of the exhaust seat 7 and the first positioning seat 3; the cylinder body 5 is vertically hoisted above the exhaust seat 7 so that the cylinder hole 50 faces the bearing hole of the exhaust seat 7.

[0099] Then, the docking assembly 1 is inserted into the cylinder hole 50 of the cylinder body 5: the two bases 11 are respectively connected to the corresponding docking shafts 10 through the sleeve holes 118, the docking shafts 10 and the corresponding bases 11 are fixedly connected, and then the bases 11 are inserted into the corresponding cylinder holes 50, and the docking shafts 10 are inserted into the corresponding first holes 30.

[0100] Adjust the adjusting component 2 to the pushing base 11 so that the first outer peripheral surface 110 fits the compression exhaust side 51 of the cylinder hole 50; drive the screw part 210 to rotate by rotating the screw head 2101, and the screw part 210 pushes the second movable part 212 to move, and at the same time, the first movable part 211 can move along the axial direction of the screw part 210, so that the first movable part 211 and the second movable part 212 can synchronously push the hole wall of the cylinder hole 50.

[0101] Meanwhile, in some embodiments, before the docking shaft 10 is passed through the bearing hole of the intake seat 6, the cylinder body 5 and the intake seat 6 are arranged in a vertical direction so that the cylinder hole 50 and the bearing hole of the intake seat 6 are connected in a vertical direction.

[0102] It should be noted that due to the weight of the docking assembly 1 itself, when the air intake seat 6 and the cylinder body 5 are arranged in the vertical direction, the docking assembly 1 also has the risk of relative movement with the cylinder body 5. Therefore, at this time, the second plug-in parts 41 of the two second positioning seats 4 can be inserted into the corresponding first bearing holes 60, and then the air intake seat 6 is connected through the second fixing part 42 to achieve the fixation of the air intake seat 6 and the second positioning seat 4; the cylinder body 5 is vertically hoisted above the air intake seat 6 so that the cylinder hole 50 faces the bearing hole of the air intake seat 6.

[0103] Then, the docking assembly 1 is inserted into the cylinder hole 50 of the cylinder body 5: the two bases 11 are respectively connected to the corresponding docking shafts 10 through the sleeve holes 118, the docking shafts 10 and the corresponding bases 11 are fixedly connected, and then the bases 11 are inserted into the corresponding cylinder holes 50, and the docking shafts 10 are inserted into the corresponding second holes 40.

[0104] Adjust the adjusting component 2 to the pushing base 11 so that the first outer peripheral surface 110 fits the compression exhaust side 51 of the cylinder hole 50; drive the screw part 210 to rotate by rotating the screw head 2101, and the screw part 210 pushes the second movable part 212 to move, and at the same time, the first movable part 211 can move along the axial direction of the screw part 210, so that the first movable part 211 and the second movable part 212 can synchronously push the hole wall of the cylinder hole 50.

[0105] It is understandable that, referring to Figure 4 and Figure 6 As shown, the cylinder block 5, the intake seat 6 and the exhaust seat 7 are installed vertically, which is beneficial to avoid the influence of gravity on the accuracy of the docking assembly 1 and the adjustment assembly 2, thereby further improving the assembly accuracy of the cylinder block 5, the intake seat 6 and the exhaust seat 7. Specifically, after the exhaust seat 7 is set below the cylinder block 5 to calibrate the assembly position and finely ream the pin hole, the intake seat 6 is vertically hoisted and vertically aligned with the cylinder block 5, and the above-mentioned fine ream pin hole operation is repeated.

[0106] The above is a detailed introduction to a screw compressor assembly tool and assembly method provided in the embodiments of the present application, and the principles and implementation methods of the present application are explained by using specific examples. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A screw compressor assembly tool, characterized in that: include: A docking assembly (1), the docking assembly (1) comprising a docking shaft (10) and a base (11) sleeved on the docking shaft (10), the docking shaft (10) being used to penetrate the bearing hole of an intake seat (6) and the bearing hole of an exhaust seat (7) respectively, so that the bearing hole of the intake seat (6) faces the bearing hole of the exhaust seat (7), the base (11) being used to penetrate the cylinder hole (50) of a cylinder body (5), the base (11) having a first outer peripheral surface (110) for fitting against the hole wall of the cylinder hole (50); An adjusting component (2) is arranged on the base (11), and the adjusting component (2) is located on a side of the base (11) away from the compression exhaust side (51) of the cylinder hole (50), and the adjusting component (2) is used to push the base (11) against the hole wall of the cylinder hole (50) so that the first outer peripheral surface (110) is in contact with the compression exhaust side (51).

2. The screw compressor assembly tool according to claim 1, characterized in that: The base (11) is provided with an adjustment groove (113), and the adjustment groove (113) penetrates the first outer peripheral surface (110) in a direction perpendicular to the axis (100) of the docking shaft (10); The regulating component (2) comprises: A push member (20), the push member (20) being movably disposed in the adjustment slot (113), the push member (20) comprising a push portion (200) for extending out of the adjustment slot (113); An adjusting member (21), wherein the adjusting member (21) is connected to the base (11) and is transmission-connected to the push member (20), and in response to adjustment of the adjusting member (21), the push member (200) can push the base (11) relative to the hole wall of the cylinder hole (50) so that the first outer peripheral surface (110) fits the compressed exhaust side (51).

3. The screw compressor assembly tool according to claim 2, characterized in that: The base (11) is provided with a through hole (114), and the through hole (114) is connected to the adjustment groove (113) along the axial direction of the docking shaft (10); The adjusting member (21) comprises: A screw portion (210), the screw portion (210) being inserted into the through hole (114), and the screw portion (210) having a threaded section (2100); a first movable portion (211), the first movable portion (211) being movably disposed in the adjusting groove (113), the first movable portion (211) being threadedly connected to the threaded section (2100), the first movable portion (211) being provided with a first inclined surface (2110) facing the push member (20), and the push member (20) being provided with a second inclined surface (201) cooperating with the first inclined surface (2110); In response to the screw portion (210) rotating around its own axis (100), the first moving portion (211) is able to move along the axial direction of the screw portion (210) and push the second inclined surface (201) through the first inclined surface (2110), so that the pushing portion (200) pushes the base (11) relative to the hole wall of the cylinder hole (50).

4. The screw compressor assembly tool according to claim 3, characterized in that: The adjustment assembly (2) further comprises an elastic member (22), wherein the elastic member (22) is arranged in the adjustment groove (113), and the elastic member (22) is connected to the base (11) and the push member (20), and the elastic member (22) is used to push the push member (20) to be accommodated in the adjustment groove (113), and in response to the push of the first movable part (211), the push member (20) can overcome the elastic force of the elastic member (22) and make the push part (200) extend out of the adjustment groove (113).

5. The screw compressor assembly tool according to claim 4, characterized in that: The push member (20) is provided with a through hole (202), the base (11) is located in the adjustment groove (113) and is provided with a connecting portion (115), the connecting portion (115) passes through the through hole (202), the elastic member (22) is arranged in the through hole (202), and the elastic member (22) connects the hole wall of the through hole (202) and the connecting portion (115) to push the push member (20) in a direction perpendicular to the axis (100) of the docking shaft (10).

6. The screw compressor assembly tool according to claim 3, characterized in that: Each of the bases (11) is provided with a plurality of adjustment grooves (113), and at least some of the adjustment grooves (113) are arranged along the axial direction of the docking shaft (10). The adjustment assembly (2) comprises a plurality of the push members (20), and each of the adjustment grooves (113) is provided with a push member (20). The adjustment member (21) is transmission-connected to the plurality of push members (20).

7. The screw compressor assembly tool according to claim 6, characterized in that: The adjusting member (21) further comprises a second movable portion (212), the second movable portion (212) being movably disposed in the adjusting slot (113), the second movable portion (212) being connected to the screw portion (210), the second movable portion (212) being provided with a third inclined surface (2120) facing the push member (20), the third inclined surface (2120) being matched with the second inclined surface (201); In response to the screw portion (210) rotating around its own axis (100) and moving along its own axial direction, the second moving portion (212) is able to move along the axial direction of the screw portion (210) and push the second inclined surface (201) through the third inclined surface (2120), so that the pushing portion (200) pushes the base (11) relative to the hole wall of the cylinder hole (50).

8. The screw compressor assembly tool according to any one of claims 1 to 7, characterized in that: Also includes: A first positioning seat (3), the first positioning seat (3) having a first hole (30), the first positioning seat (3) being used to connect to the exhaust seat (7) so that the center of the first hole (30) is coaxially aligned with the center of the bearing hole of the exhaust seat (7); A second positioning seat (4), the second positioning seat (4) having a second hole (40), the second positioning seat (4) being used to connect to the air inlet seat (6) so that the center of the second hole (40) is coaxially aligned with the center of the bearing hole of the air inlet seat (6); The first positioning seat (3) is sleeved on the docking shaft (10) through the first hole (30), the second positioning seat (4) is sleeved on the docking shaft (10) through the second hole (40), and the axis (100) of the docking shaft (10) passes through the center of the first hole (30) and the center of the second hole (40).

9. The screw compressor assembly tool according to claim 8, characterized in that: The first positioning seat (3) comprises a first plug-in portion (31) and a first fixing portion (32), the first plug-in portion (31) being inserted into the bearing hole of the exhaust seat (7), and at least a portion of the first fixing portion (32) being arranged outside the bearing hole of the exhaust seat (7), and the first hole (30) being arranged in the first plug-in portion (31); The second positioning seat (4) comprises a second plug-in portion (41) and a second fixing portion (42), the second plug-in portion (41) being inserted into the bearing hole of the air intake seat (6), and at least a portion of the second fixing portion (42) being arranged outside the bearing hole of the air intake seat (6), and the second hole (40) being arranged in the second plug-in portion (41).

10. A method for assembling a screw compressor, characterized in that: The screw compressor assembly tool used in any one of claims 1 to 9 comprises: The docking assembly (1) is inserted into the cylinder hole (50) of the cylinder body (5); The adjusting assembly (2) is adjusted to abut against the thrust base (11) so that the first outer peripheral surface (110) is in contact with the compression and exhaust side (51) of the cylinder hole (50); Directing the cylinder hole (50) of the cylinder body (5) toward the bearing hole of one of the exhaust seat (7) and the intake seat (6); Passing a docking shaft (10) through a bearing hole of one of the two and fixing it; Locating the connection position between the cylinder body (5) and the one; Directing the cylinder hole (50) of the cylinder body (5) toward the bearing hole of the other of the exhaust seat (7) and the intake seat (6); The docking shaft (10) is inserted into the bearing hole of the other one and fixed; Locating the connection position between the cylinder body (5) and the other; Disassembling the docking assembly (1) and the adjustment assembly (2); The cylinder body (5), the intake seat (6) and the exhaust seat (7) are connected.

11. The screw compressor assembly method according to claim 10, characterized in that: Before the docking shaft (10) is inserted into the bearing hole of the exhaust seat (7), the cylinder body (5) and the exhaust seat (7) are arranged in a vertical direction so that the cylinder hole (50) and the bearing hole of the exhaust seat (7) are connected in the vertical direction.

12. The screw compressor assembly method according to claim 10, characterized in that: Before the docking shaft (10) is inserted into the bearing hole of the air intake seat (6), the cylinder body (5) and the air intake seat (6) are arranged in a vertical direction so that the cylinder hole (50) and the bearing hole of the air intake seat (6) are connected in the vertical direction.

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