A screw compressor assembly tool and assembly method

Abstract

The application discloses a screw compressor assembling tool and an assembling method, and belongs to the technical field of screw compressors. The screw compressor assembling tool comprises a butt joint assembly. The butt joint assembly comprises a butt joint shaft and a base portion sleeved on the butt joint shaft. The butt joint shaft is used for being respectively arranged in bearing holes of an air inlet seat and a gas outlet seat, so that the bearing hole of the air inlet seat is opposite to the bearing hole of the gas outlet seat. The base portion is used for being arranged in a cylinder hole of a cylinder body. The base portion has a first outer peripheral surface used for abutting a hole wall of the cylinder hole. An adjusting assembly is arranged on the base portion and located on a side of the base portion away from a compression gas outlet side of the cylinder hole. The adjusting assembly is used for pushing the base portion relative to the hole wall of the cylinder hole, so that the first outer peripheral surface abuts the compression gas outlet side. The application is beneficial to realizing accurate butt joint of the cylinder body, the air inlet seat and the gas outlet seat, and reducing assembly errors of the cylinder hole and the compression gas outlet side after subsequent assembly of a male rotor and a female rotor.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of screw compressors, and particularly relates to a screw compressor assembling tool and an assembling method. BACKGROUND

[0002] The shell structure of a screw compressor is mostly assembled by using a multi-section shell. Taking a three-section screw compressor as an example, the shell of the screw compressor usually comprises a cylinder body, an air inlet seat and an air outlet seat. When the screw compressor is assembled, the cylinder hole of the cylinder body needs to be aligned with the bearing holes of the air inlet seat and the air outlet seat respectively, so as to ensure the gap size between the compression air outlet side of the cylinder hole and the male rotor and the female rotor.

[0003] However, the cylinder hole of the cylinder body of some screw compressors is often designed as a non-cylindrical hole, which increases the difficulty of precise butt joint of the cylinder body, the air inlet seat and the air outlet seat. If the gap error between the male rotor, the female rotor and the compression air outlet side of the cylinder hole is large, the male rotor and the female rotor are prone to have large matching errors and serious wear, which affects the normal work of the whole machine. SUMMARY

[0004] The application aims to provide a screw compressor assembling tool to solve the above technical problems. Another object of the application is to provide an assembling method applied to the screw compressor assembling tool.

[0005] TECHNICAL SOLUTION The screw compressor assembling tool provided by the application comprises:

[0006] A butt joint assembly, which comprises a butt joint shaft and a base portion sleeved on the butt joint shaft. The butt joint shaft is used to be respectively arranged in the bearing hole of the air inlet seat and the bearing hole of the air outlet seat, so that the bearing hole of the air inlet seat is opposite to the bearing hole of the air outlet seat. The base portion is used to be arranged in the cylinder hole of the cylinder body. The base portion has a first outer peripheral surface used to fit the hole wall of the cylinder hole.

[0007] An adjusting assembly, which is arranged on the base portion and located on the side of the base portion away from the compression air outlet side of the cylinder hole. The adjusting assembly is used to push the base portion against the hole wall of the cylinder hole, so that the first outer peripheral surface fits the compression air outlet side.

[0008] In some embodiments, the base portion is provided with an adjusting groove, and the adjusting groove penetrates through the first outer peripheral surface along the direction perpendicular to the axis of the butt joint shaft.

[0009] The adjusting assembly comprises:

[0010] A pushing piece, which is movably arranged in the adjusting groove. The pushing piece has a pushing portion used to protrude out of the adjusting groove.

[0011] an adjusting member connected to the base and drivingly connected to the pushing member, in response to adjustment of the adjusting member, the pushing portion is capable of pushing the base against the bore wall of the cylinder bore to make the first outer circumferential surface fit the compression exhaust side.

[0012] In some embodiments, the base is provided with a through hole, the through hole is in communication with the adjusting groove along the axial direction of the butt joint shaft;

[0013] The adjusting member comprises:

[0014] a screw portion penetrating the through hole, and the screw portion is provided with a threaded segment;

[0015] a first moving portion movably arranged in the adjusting groove, the first moving portion is threadedly connected to the threaded segment, the first moving portion is provided with a first inclined surface towards the pushing member, and the pushing member is provided with a second inclined surface matched with the first inclined surface;

[0016] in response to the rotation of the screw portion around its own axis, the first moving portion is capable of moving along the axial direction of the screw portion and pushing the second inclined surface through the first inclined surface, so that the pushing portion pushes the base against the bore wall of the cylinder bore.

[0017] In some embodiments, the adjusting assembly further comprises an elastic member arranged in the adjusting groove, and the elastic member is connected to the base and the pushing member, the elastic member is used to push the pushing member into the adjusting groove, in response to the pushing of the first moving portion, the pushing member is capable of overcoming the elastic force of the elastic member and making the pushing portion extend out of the adjusting groove.

[0018] In some embodiments, the pushing member is provided with a through hole, the base is provided with a connecting portion in the adjusting groove, the connecting portion penetrates the through hole, the elastic member is arranged in the through hole, and the elastic member is connected to the hole wall of the through hole and the connecting portion to push the pushing member in the direction perpendicular to the axis of the butt joint shaft.

[0019] In some embodiments, each of the bases is provided with a plurality of adjusting grooves, at least part of the adjusting grooves are arranged along the axial direction of the butt joint shaft, the adjusting assembly comprises a plurality of the pushing members, and each of the adjusting grooves is provided with the pushing member, and the adjusting member is drivingly connected to a plurality of the pushing members.

[0020] In some embodiments, the adjusting member further comprises a second moving portion movably arranged in the adjusting groove, the second moving portion is connected to the screw portion, the second moving portion is provided with a third inclined surface towards the pushing member, and the third inclined surface is matched with the second inclined surface;

[0021] In response to the screw portion turning around its own axis and moving along its own axial direction, the second moving portion is capable of moving along the axial direction of the screw portion and pushing 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 comprises:

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

[0024] a second positioning seat having a second hole, the second positioning seat being used to connect the intake seat so that the hole center of the second hole is coaxially aligned with the hole center of the bearing hole of the intake seat;

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

[0026] In some embodiments, the first positioning seat comprises a first insertion portion and a first fixing portion, the first insertion portion is arranged in the bearing hole of the exhaust seat, at least part of the first fixing portion is arranged outside the bearing hole of the exhaust seat, and the first hole is arranged in the first insertion portion.

[0027] the second positioning seat comprises a second insertion portion and a second fixing portion, the second insertion portion is arranged in the bearing hole of the intake seat, at least part of the second fixing portion is arranged outside the bearing hole of the intake seat, and the second hole is arranged in the second insertion portion.

[0028] Correspondingly, the screw compressor assembly method provided by the embodiments of the present application is applied to the screw compressor assembly tool described above, and comprises:

[0029] arranging the butt joint assembly in the cylinder hole of the cylinder body;

[0030] adjusting the adjusting assembly to push the base so that the first outer peripheral surface is attached to the compression exhaust side of the cylinder hole;

[0031] arranging the cylinder hole of the cylinder body towards the bearing hole of one of the exhaust seat and the intake seat;

[0032] arranging the butt joint shaft in the bearing hole of the one and fixing the butt joint shaft;

[0033] positioning the cylinder body and the connection position of the one;

[0034] a bearing hole of the other one of the exhaust base and the intake base;

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

[0036] positioning the connecting position of the cylinder block and the other one;

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

[0038] connecting the cylinder block, the intake base and the exhaust base.

[0039] In some embodiments, before the docking shaft is passed through the bearing hole of the exhaust base, the cylinder block and the exhaust base are arranged along a vertical direction so that the cylinder bore and the bearing hole of the exhaust base are communicated along the vertical direction.

[0040] In some embodiments, before the docking shaft is passed through the bearing hole of the intake base, the cylinder block and the intake base are arranged along a vertical direction so that the cylinder bore and the bearing hole of the intake base are communicated along the vertical direction.

[0041] Beneficial effects: the screw compressor assembly tooling of the embodiments of the present application comprises a docking assembly and an adjusting assembly. The docking assembly comprises a docking shaft and a base portion sleeved on the docking shaft, the docking shaft is used for being passed through the bearing hole of the intake base and the bearing hole of the exhaust base respectively, so that the bearing hole of the intake base is opposite to the bearing hole of the exhaust base, and the base portion is used for being passed through the cylinder bore of the cylinder block, and the base portion has a first outer peripheral surface used for abutting the hole wall of the cylinder bore. The adjusting assembly is arranged on the base portion, and is located on the side of the base portion away from the compression exhaust side of the cylinder bore, and the adjusting assembly is used for pushing the base portion against the hole wall of the cylinder bore, so that the first outer peripheral surface abuts the compression exhaust side. When the intake base, the cylinder block and the exhaust base of the screw compressor are assembled, the first outer peripheral surface of the base portion is abutted to the compression exhaust side in advance by the adjusting assembly, so as to ensure the gap size of the compression exhaust side in the cylinder bore, so that the excess gap error can be arranged on the intake side opposite to the compression exhaust side, the maximum allowable error of the intake side in the cylinder bore is much larger than the gap error of the compression exhaust side in the cylinder bore, the two bearing holes are made opposite by the docking shaft docking the bearing hole of the intake base and the bearing hole of the exhaust base, and the mounting positions of the cylinder block and the intake base and the cylinder block and the exhaust base are positioned, so as to facilitate the accurate docking of the cylinder block, the intake base and the exhaust base, and reduce the assembly error of the male rotor and the female rotor with the compression exhaust side in the cylinder bore after subsequent assembly. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0043] Figure 1 is a structural schematic diagram of the assembled screw compressor and assembly tool of the embodiment of the present application;

[0044] Figure 2 is an exploded structural schematic diagram of the cylinder block, the air inlet seat, the air outlet seat and the assembly tool of the embodiment of the present application;

[0045] Figure 3 is a structural schematic diagram of the embodiment of the present application from the side of the air outlet seat away from the air inlet seat;

[0046] Figure 4 is a structural schematic diagram of the embodiment of the present application from the side of the air outlet seat away from the air inlet seat; Figure 3 is a sectional view along the line A-A in

[0047] Figure 5 is an enlarged view of the part C in Figure 4

[0048] Figure 6 is a sectional view along the line B-B in Figure 3

[0049] Figure 7 is an exploded structural schematic diagram of the pushing piece and the adjusting piece of the embodiment of the present application;

[0050] Figure 8 is a structural schematic diagram of the adjusting assembly of the embodiment of the present application;

[0051] Figure 9 is a structural schematic diagram of the intermediate block of the embodiment of the present application;

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

[0053] Figure 11 is a structural schematic diagram of the pushing piece of the embodiment of the present application;

[0054] ​​Label: 1, docking assembly; 10, docking shaft; 100, axis; 11, base; 110, first outer peripheral surface; 111, intermediate block; 112, end block; 113, adjusting groove; 114, through hole; 115, connecting part; 116, plane; 117, fifth pin hole; 118, sleeve hole; 2, adjusting assembly; 20, pushing piece; 200, pushing part; 201, second inclined surface; 202, through hole; 203, accommodation groove; 21, adjusting piece; 210, screw part; 2100, threaded segment; 2101, screw head; 211, first moving part; 2110, first inclined surface; 2111, screw hole; 212, second moving part; 2120, third inclined surface; 2121, groove; 2122, adjusting hole; 22, elastic piece; 3, first positioning seat; 30, first hole; 31, first insertion part; 32, first fixing part; 4, second positioning seat; 40, second hole; 41, second insertion 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 clearly and completely described below with reference to 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 the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall 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", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, at least one of which can be one, two or more, unless otherwise explicitly specified.

[0057] The shell structure of the screw compressor is mostly assembled by using a multi-section shell. Taking a three-section screw compressor as an example, the shell of the screw compressor usually includes a cylinder body, an air inlet seat and an air outlet seat. When the screw compressor is assembled, the cylinder holes of the cylinder body need to be aligned with the bearing holes of the air inlet seat and the air outlet seat respectively, so as to ensure the gap size between the compression air outlet side of the cylinder hole and the male rotor and the female rotor.

[0058] However, the cylinder hole of the cylinder body of some screw compressors is often designed as a non-cylindrical hole, which increases the difficulty of precise butt joint of the cylinder body, the air inlet seat and the air outlet seat. In particular, the cylinder hole needs to be opened on the cylinder body corresponding to the male rotor and the female rotor, and multiple processing is easy to cause large gap error between the male rotor, the female rotor and the compression air outlet side of the cylinder hole, which is easy to cause large matching error and serious wear of the male rotor and the female rotor, and affects the normal work of the whole machine.

[0059] Therefore, the embodiments of the present application disclose 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 tool disclosed by the embodiments of the present application, a three-section screw compressor is taken as a reference in the present embodiment, and the screw compressor includes a cylinder body 5, an air inlet seat 6 and an air outlet seat 7.

[0061] Specifically, the screw compressor is a double-screw structure, 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 air inlet seat 6 is provided with a first bearing hole 60 facing each cylinder hole 50, and the air inlet seat 6 is provided with an air inlet 62 communicating with the cylinder hole 50. The air outlet seat 7 is provided with a second bearing hole 70 facing each cylinder hole 50, and the air outlet seat 7 is provided with an air outlet 72 communicating with the cylinder hole 50, the air outlet 72 being close to the compression air outlet side 51 of the cylinder hole 50. It should be noted that, with reference 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 air inlet seat 6 is drilled with a second pin hole 61 corresponding to the first pin hole 53, and the air outlet seat 7 is drilled with a third pin hole 71 corresponding to the fourth pin hole 54.

[0062] With reference to Figures 1 to 11 The screw compressor assembly tool includes a butt joint assembly 1 and an adjusting assembly 2.

[0063] The docking assembly 1 comprises 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 in the embodiment, the docking assembly 1 is provided with two docking shafts 10 and corresponding bases 11. The docking shaft 10 is respectively arranged in the first bearing hole 60 and the second bearing hole 70, so that the first bearing hole 60 is opposite to the second bearing hole 70. The base 11 is arranged in the cylinder hole 50, and the base 11 has a first outer circumferential surface 110 for abutting the hole wall of the cylinder hole 50. The adjusting assembly 2 is arranged on the base 11, and the adjusting 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 adjusting assembly 2 is used for pushing the base 11 against the hole wall of the cylinder hole 50, so that the first outer circumferential surface 110 abuts the compression exhaust side 51.

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

[0065] When assembling the intake seat 6, the cylinder block 5 and the exhaust seat 7 of the screw compressor, the first outer circumferential surface 110 of the base 11 is abutted to the compression exhaust side 51 in advance through the adjusting assembly 2, so as to ensure the gap size of the compression exhaust side 51 in the cylinder hole 50.

[0066] It should be noted that the size of the male rotor and the female rotor is smaller than the size of the cylinder hole 50, and the abutting of the base 11 to the compression exhaust side 51 can avoid the large gap error between the male rotor, the female rotor and the hole wall of the cylinder hole 50 after the male rotor and the female rotor are replaced, and can also avoid the problem of interference wear caused by too small gap between the male rotor, the female rotor and the hole wall of the cylinder hole 50.

[0067] The excessive gap error is arranged 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 gap error of the compression exhaust side 51 in the cylinder hole 50. By docking the first bearing hole 60 and the second bearing hole 70 through the docking shaft 10, the first bearing hole 60 and the second bearing hole 70 are aligned with each other, and the mounting positions of the cylinder block 5 and the intake seat 6, the cylinder block 5 and the exhaust seat 7 are positioned respectively, so as to facilitate the precise docking of the cylinder block 5, the intake seat 6 and the exhaust seat 7, and reduce the assembly error of the compression exhaust side 51 in the cylinder hole 50 after the male rotor and the female rotor are assembled subsequently.

[0068] It should be noted that the above-mentioned positioning cylinder block 5 and the mounting position of the intake seat 6, the cylinder block 5 and the exhaust seat 7 can be precisely machined for the first pin hole 53, the fourth pin hole 54, the second pin hole 61 and the third pin hole 71 to further accurately position the cylinder block 5, the intake seat 6 and the exhaust seat 7, so as to facilitate the insertion of the pin shaft and further bolt locking of the cylinder block 5, the intake seat 6 and the exhaust seat 7.

[0069] In some embodiments, referring to Figure 2 , Figure 4 and Figure 7 , the base 11 includes a middle block 111 and two end blocks 112. The two end blocks 112 are correspondingly arranged at opposite ends of the middle block 111 along the axial direction of the butt joint shaft 10. In addition to the first outer circumferential surface 110, the overall base 11 also has a flat surface 116 facing the other cylinder hole 50 to match the shape of the cylinder hole 50. The middle block 111 and the end block 112 are both provided with sleeve holes 118 that are in communication with each other along the axial direction of the butt joint shaft 10, so as to be directly sleeved on the butt joint shaft 10. The middle block 111 is further provided with a fifth pin hole 117 on the first outer circumferential surface 110, so as to position and lock the butt joint shaft 10 and the middle block 111 through a pin shaft and a bolt. The fixing principle is known in the art and will not be described here.

[0070] In some embodiments, referring to Figure 2 , Figures 4 to 9 , the base 11 is provided with an adjusting groove 113 that penetrates the first outer circumferential surface 110 in a direction perpendicular to the axial line 100 of the butt joint shaft 10. Specifically, the adjusting groove 113 is arranged on the end surface of the middle block 111 facing the end block 112. After the end block 112 is connected to the middle block 111, the adjusting groove 113 only has an opening facing the hole wall of the cylinder hole 50.

[0071] The adjusting assembly 2 includes a pushing member 20 and an adjusting member 21. The pushing member 20 is movably arranged in the adjusting groove 113 and has a pushing portion 200 facing the hole wall of the cylinder hole 50. The adjusting member 21 is connected to the base 11 and is drivingly connected to the pushing member 20. In response to the adjustment of the adjusting member 21, the pushing portion 200 can extend out of the adjusting groove 113, abut the hole wall of the cylinder hole 50 and push the base 11, so as to make the first outer circumferential surface 110 fit the compressed exhaust side 51.

[0072] After the overall base 11 is introduced into the cylinder hole 50 by using the adjusting member 21 to cooperate with the pushing member 20, the adjusting member 21 is adjusted to drive the pushing member 20 to move, so that the pushing portion 200 can abut the hole wall of the cylinder hole 50. When the base 11 needs to be disassembled, the adjusting member 21 is adjusted again to drive the pushing member 20 to move to the position where the pushing 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, with reference to Figures 4 to 9 The base 11 is provided with a through hole 114 which is in communication with the adjusting groove 113 along the axial direction of the docking shaft 10, and the through hole 114 actually penetrates the intermediate block 111 and the end block 112. The adjusting member 21 comprises a screw portion 210 and a first moving portion 211. The screw portion 210 is arranged in the through hole 114, and the screw portion 210 is provided with a threaded segment 2100. The first moving portion 211 is movably arranged in the adjusting groove 113, and the first moving portion 211 is provided with a threaded hole 2111 so as to be threadedly connected with the threaded segment 2100. The first moving portion 211 is provided with a first inclined surface 2110 which faces the pushing member 20, and the pushing member 20 is provided with a second inclined surface 201 which cooperates with the first inclined surface 2110. In response to the rotation of the screw portion 210 around the axis 100 thereof, the first moving portion 211 is moved along the axial direction of the screw portion 210 and pushes the second inclined surface 201 through the first inclined surface 2110, so as to push the pushing portion 200 against the hole wall of the cylinder hole 50.

[0074] It should be noted that the screw portion 210 further comprises a screw head 2101 which is manually inserted into the adjusting groove 113 from one end of the through hole 114 and twists the whole 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 moving portion 211 along the screw portion 210 is converted into the movement of the pushing member 20 in the direction perpendicular to the axial direction of the screw portion 210, so as to realize that the pushing portion 200 can push the base 11.

[0076] In order to facilitate the timely storage of the pushing member 20, in some embodiments, with reference to Figures 5 to 8 The adjusting assembly 2 further comprises an elastic member 22 which is arranged in the adjusting groove 113, and the elastic member 22 is connected with the base 11 and the pushing member 20. The elastic member 22 is used to push the pushing member 20 so as to store the pushing member 20 in the adjusting groove 113. In response to the pushing of the first moving portion 211, the pushing member 20 can overcome the elastic force of the elastic member 22 and make the pushing portion 200 extend out of the adjusting groove 113.

[0077] Specifically, in some embodiments, with reference to Figure 7 , Figure 9 and Figure 10The pushing piece 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 be integrally formed with the middle block 111, and the connecting portion 115 is attached to the end block 112 after the end block 112 is connected to the middle block 111. The connecting portion 115 penetrates through the through hole 202, that is, the pushing piece 20 can be sleeved on the connecting portion 115 through the through hole 202. The elastic member 22 is arranged in the through hole 202, and the elastic member 22 is connected to the hole wall of the through hole 202 and the pushing piece 20 of the connecting portion 115, so as to push the pushing piece 20 in a direction perpendicular to the axis 100 of the docking shaft 10.

[0078] In the embodiment, the elastic member 22 is arranged on the side of the connecting portion 115 facing the docking shaft 10. The elastic member 22 can be a spring or other elastic structure. The elastic member 22 can store the pushing piece 20 in the adjusting groove 113 by its own elastic force. With the pushing of the first moving portion 211, the pushing piece 20 and the connecting portion 115 press the elastic member 22 and make the pushing portion 200 extend out of the adjusting groove 113. At this time, the elastic member 22 can also avoid the rigid collision between the pushing portion 200 and the hole wall of the cylinder hole 50, which is beneficial to improve the protection of the pushing piece 20 and the cylinder body 5.

[0079] In some embodiments, referring to Figures 4 to 7 Each base 11 is provided with a plurality of adjusting grooves 113, and at least part of the adjusting grooves 113 are arranged along the axial direction of the docking shaft 10. In the embodiment, the middle block 111 is provided with adjusting grooves 113 at both ends along the axial direction of the docking shaft 10. The adjusting assembly 2 includes a plurality of pushing pieces 20, and each adjusting groove 113 is provided with a pushing piece 20. The adjusting member 21 is drivingly connected to the plurality of pushing pieces 20. By arranging a plurality of adjusting grooves 113 and pushing pieces 20 along the axial direction of the docking shaft 10, the uniformity of the pushing piece 20 pushing the hole wall of the cylinder hole 50 is improved, and the accuracy of the overall adjusting assembly 2 adjusting the assembly position of the cylinder body 5 is improved.

[0080] In some embodiments, referring to Figures 5 to 9 The adjusting member 21 further includes a second moving portion 212, which is movably arranged in the adjusting groove 113. The second moving portion 212 is connected to the screw portion 210, and the third inclined surface 2120 is arranged on the second moving portion 212 and faces the pushing piece 20. The third inclined surface 2120 cooperates with the second inclined surface 201. In response to the rotation of the screw portion 210 around the axis 100 and the movement of the screw portion 210 along the 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 as to push the base 11 relative to the hole wall of the cylinder hole 50.

[0081] Specifically, the screw rod part 210 and the first moving part 211 relatively rotate along the axial direction of the screw rod part 210 at the same time. In the embodiment, the second moving part 212 is provided with a groove 2121 for embedding the screw head 2101, that is, the screw head 2101 can push the second moving part 212 to move synchronously with the screw rod part 210, so as to realize the relative movement or opposite movement of the first moving part 211 and the second moving part 212 during the rotation of the screw rod part 210, so as to synchronously push the hole wall of the cylinder hole 50 or synchronously enter the corresponding adjusting groove 113.

[0082] In addition, in order to avoid hindering the manual rotation of the screw head 2101, the second moving part 212 is also provided with an adjusting hole 2122 communicating with the groove 2121, and the adjusting hole 2122 also communicates with the through hole 114, so as to manually rotate the screw head 2101.

[0083] In some embodiments, referring to Figure 1 、 Figure 2 and Figure 4 , the screw compressor assembly tool further 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 hole center of the first hole 30 is coaxially aligned with the hole 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 hole center of the second hole 40 is coaxially aligned with the hole center of the bearing hole of the intake seat 6. The first positioning seat 3 is sleeved on the butt joint shaft 10 through the first hole 30, and the second positioning seat 4 is sleeved on the butt joint shaft 10 through the second hole 40. The axis 100 of the butt joint shaft 10 passes through the hole center of the first hole 30 and the hole 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 part 31 and a first fixed part 32, the first plug-in part 31 is arranged in the bearing hole of the exhaust seat 7, and at least part of the first fixed part 32 is arranged outside the bearing hole of the exhaust seat 7, and the first hole 30 is arranged in the first plug-in part 31. The second positioning seat 4 includes a second plug-in part 41 and a second fixed part 42, the second plug-in part 41 is arranged in the bearing hole of the intake seat 6, and at least part of the second fixed part 42 is arranged outside the bearing hole of the intake seat 6, and the second hole 40 is arranged in the second plug-in part 41.

[0085] The first fixing part 32 is provided with bolt holes matched with the exhaust seat 7, so as to be quickly fixed to position the first plug-in part 31. Similarly, the second fixing part 42 is provided with bolt holes matched with the intake seat 6, so as to be quickly fixed to position the second plug-in part 41. The overall first positioning seat 3 and the second positioning seat 4 are designed to cooperate with the butt joint shaft 10 to quickly align the intake seat 6 and the exhaust seat 7 and the cylinder block 5, and to realize the positioning and assembly precision of the intake seat 6, the exhaust seat 7 and the cylinder block 5.

[0086] Correspondingly, the screw compressor assembly method of the embodiment of the application is applied to the screw compressor assembly tooling described above, and includes the following steps.

[0087] The butt joint assembly 1 is inserted into the cylinder hole 50 of the cylinder block 5; specifically, the two base parts 11 are connected to the corresponding butt joint shaft 10 through the sleeve joint hole 118, the butt joint shaft 10 and the corresponding base part 11 are fixedly connected, and then the base part 11 is inserted into the corresponding cylinder hole 50.

[0088] The adjusting assembly 2 is adjusted to abut against the base part 11, so that the first outer peripheral surface 110 abuts against the compression exhaust side 51 of the cylinder hole 50; specifically, the screw rod part 210 is driven to rotate by rotating the adjusting screw head 2101, the screw rod part 210 abuts against the second moving part 212 to move, and the first moving part 211 can move along the axial direction of the screw rod part 210, so as to realize the synchronous abutment of the first moving part 211 and the second moving part 212 against the hole wall of the cylinder hole 50.

[0089] The cylinder hole 50 of the cylinder block 5 is directed towards 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 part 31 of the two first positioning seats 3 is inserted into the corresponding second bearing hole 70, and then the exhaust seat 7 is connected through the first fixing part 32 to realize the fixation of the exhaust seat 7 and the first positioning seat 3.

[0090] The butt joint shaft 10 is inserted into the bearing hole of one and fixed; taking the exhaust seat 7 as an example, the butt joint shaft 10 is inserted into the second bearing hole 70 and the first hole 30.

[0091] The connection position of the cylinder block 5 and one is positioned; taking the exhaust seat 7 as an example, the third pin hole 71 and the fourth pin hole 54 are precisely machined, 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 precise machining of the hole, the cylinder block 5 and the exhaust seat 7 can be fixed by bolts in advance.

[0092] The cylinder hole 50 of the cylinder block 5 is directed towards the bearing hole of the other of the exhaust seat 7 and the intake seat 6; at this time, taking the intake seat 6 as an example, the second plug-in part 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 part 42 to realize 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 intake seat 6 as an example, the docking shaft 10 is inserted into the first bearing hole 60 and the second hole 40.

[0094] The connecting position of the cylinder block 5 and the other is positioned; taking the intake seat 6 as an example, the second pin hole 61 and the first pin hole 53 are precisely honed, 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 honing, the cylinder block 5 and the intake seat 6 can be fixed by bolts in advance.

[0095] The docking assembly 1 and the adjusting assembly 2 are disassembled.

[0096] The cylinder block 5, the intake seat 6 and the exhaust seat 7 are connected. At this time, the cylinder block 5, the intake seat 6 and the exhaust seat 7 are bolted, and the first pin hole 53, the fourth pin hole 54, the second pin hole 61 and the third pin hole 71 are precisely honed to ensure that the three are precisely aligned.

[0097] In some embodiments, before the docking shaft 10 is inserted into the bearing hole of the exhaust seat 7, the cylinder block 5 and the exhaust seat 7 are arranged in the vertical direction to make the cylinder hole 50 and the bearing hole of the exhaust seat 7 communicate in the vertical direction.

[0098] It should be noted that due to the weight of the docking assembly 1 itself, there is a risk of relative movement between the docking assembly 1 and the cylinder block 5 when the exhaust seat 7 and the cylinder block 5 are arranged in the vertical direction. Therefore, at this time, the first insertion part 31 of the two first positioning seats 3 can be inserted into the corresponding second bearing hole 70, and then the exhaust seat 7 can be connected through the first fixing part 32 to fix the exhaust seat 7 and the first positioning seat 3. The cylinder block 5 is vertically hoisted above the exhaust seat 7, and 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 block 5: the two base parts 11 are connected to the corresponding docking shaft 10 through the sleeve hole 118, the docking shaft 10 and the corresponding base part 11 are fixedly connected, and then the base part 11 is inserted into the corresponding cylinder hole 50, and the docking shaft 10 is inserted into the corresponding first hole 30.

[0100] The adjusting assembly 2 is adjusted to push the base part 11, so that the first outer peripheral surface 110 abuts against the compression exhaust side 51 of the cylinder hole 50; the screw head 2101 is rotated to drive the screw part 210 to rotate, the screw part 210 pushes the second moving part 212 to move, and the first moving part 211 can move along the axial direction of the screw part 210, so that the first moving part 211 and the second moving part 212 synchronously push the hole wall of the cylinder hole 50.

[0101] Meanwhile, in some embodiments, before the docking shaft 10 passes 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 set in the vertical direction, the docking assembly 1 also faces the risk of relative movement with the cylinder body 5. Therefore, in this case, the second insertion parts 41 of the two second positioning seats 4 can be inserted into the corresponding first bearing holes 60 firstly, and then the air intake seat 6 can be connected through the second fixing part 42 to fix 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 bore 50 of the cylinder body 5: the two bases 11 are connected to the corresponding docking shafts 10 through the sleeve holes 118 respectively, the docking shafts 10 and the corresponding bases 11 are fixedly connected, and then the bases 11 are inserted into the corresponding cylinder bores 50, while the docking shafts 10 are inserted into the corresponding second holes 40.

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

[0105] Understandably, referring to Figure 4 and Figure 6 As shown, vertically installing the cylinder block 5, intake seat 6, and exhaust seat 7 helps avoid the influence of gravity on the accuracy of the docking assembly 1 and the adjusting assembly 2, thereby further improving the assembly accuracy of the cylinder block 5, intake seat 6, and exhaust seat 7. Specifically, after calibrating the assembly position of the exhaust seat 7 below the cylinder block 5 and precisely reaming the pin hole, the intake seat 6 is then vertically hoisted and aligned vertically with the cylinder block 5, and the above-mentioned precise pin hole reaming operation is repeated.

[0106] The foregoing has provided a detailed description of a screw compressor assembly fixture and assembly method provided in the embodiments of this application, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A screw compressor assembly fixture, characterized in that, include: A docking assembly (1) includes a docking shaft (10) and a base (11) sleeved on the docking shaft (10). The docking shaft (10) is used to pass through the bearing holes of the intake seat (6) and the exhaust seat (7) respectively, so that the bearing holes of the intake seat (6) are aligned with the bearing holes of the exhaust seat (7). The base (11) is used to pass through the cylinder hole (50) of the cylinder body (5). The base (11) has a first outer peripheral surface (110) for fitting the hole wall of the cylinder hole (50). The base (11) has an adjustment groove (113) and a through hole (114). The adjustment groove (113) passes through the first outer peripheral surface (110) in a direction perpendicular to the axis (100) of the docking shaft (10). The through hole (114) communicates with the adjustment groove (113) along the axial direction of the docking shaft (10). An adjustment assembly (2) is disposed on the base (11) and located on the side of the base (11) opposite to the compression exhaust side (51) of the cylinder bore (50). The adjustment assembly (2) is used to push the base (11) against the bore wall of the cylinder bore (50) so that the first outer peripheral surface (110) fits against the compression exhaust side (51). The adjustment assembly (2) includes a pusher (20) and an adjustment member (21). The pusher (20) is movably disposed in the adjustment groove (113) and has a pusher portion (200) for extending out of the adjustment groove (113). The adjustment member (21) is connected to the base (11) and is drively connected to the pusher (20). In response to the adjustment of the adjustment member (21), the adjustment member (21) is adjusted to the base (11) and driven to the pusher (20). In this section, the pushing part (200) can push against the base (11) relative to the hole wall of the cylinder bore (50) so that the first outer peripheral surface (110) fits against the compression exhaust side (51); the adjusting member (21) includes a screw part (210) and a first moving part (211), the screw part (210) passes through the through hole (114) and the screw part (210) has a threaded section (2100); the first moving part (211) is movably disposed in the adjusting groove (113), the first moving part (211) is threadedly connected to the threaded section (2100), the first moving part (211) has a first inclined surface (2110) facing the pushing member (20), and the pushing member (20) has a second inclined surface (201) that cooperates with 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 against the second inclined surface (201) through the first inclined surface (2110), so that the pushing portion (200) pushes against the base portion (11) relative to the hole wall of the cylinder bore (50).

2. The screw compressor assembly fixture according to claim 1, characterized in that, The adjustment assembly (2) further includes an elastic element (22), which is disposed in the adjustment groove (113) and connects the base (11) and the pusher (20). The elastic element (22) is used to push the pusher (20) into the adjustment groove (113). In response to the push of the first moving part (211), the pusher (20) can overcome the elastic force of the elastic element (22) and cause the pusher (200) to extend out of the adjustment groove (113).

3. The screw compressor assembly fixture according to claim 2, characterized in that, The pusher (20) has a through hole (202), the base (11) is located in the adjustment groove (113) and has a connecting part (115), the connecting part (115) passes through the through hole (202), the elastic member (22) is located in the through hole (202), and the elastic member (22) connects the hole wall of the through hole (202) and the connecting part (115) to push the pusher (20) in a direction perpendicular to the axis (100) of the docking shaft (10).

4. The screw compressor assembly fixture according to claim 1, characterized in that, Each of the bases (11) is provided with a plurality of adjustment slots (113), at least some of the adjustment slots (113) are arranged along the axial direction of the docking shaft (10), the adjustment assembly (2) includes a plurality of the pushers (20), and each of the adjustment slots (113) is provided with a pusher (20), and the adjustment assembly (21) is drivenly connected to the plurality of pushers (20).

5. The screw compressor assembly fixture according to claim 4, characterized in that, The adjusting member (21) further includes a second moving part (212), which is movably disposed in the adjusting groove (113). The second moving part (212) is connected to the screw part (210). The second moving part (212) has a third inclined surface (2120) facing the pushing member (20), and the third inclined surface (2120) cooperates 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 against the second inclined surface (201) through the third inclined surface (2120) so that the pushing portion (200) pushes against the base portion (11) relative to the bore wall of the cylinder bore (50).

6. The screw compressor assembly tooling according to any one of claims 1 to 5, characterized in that, Also includes: A first positioning seat (3) has a first hole (30) and is used to connect 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 is used to connect the air intake seat (6) so that the center of the second hole (40) is coaxially aligned with the center of the bearing hole of the air 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). 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).

7. The screw compressor assembly fixture according to claim 6, characterized in that, The first positioning seat (3) includes a first insertion part (31) and a first fixing part (32). The first insertion part (31) passes through the bearing hole of the exhaust seat (7), and at least a portion of the first fixing part (32) is located outside the bearing hole of the exhaust seat (7). The first hole (30) is located in the first insertion part (31). The second positioning seat (4) includes a second insertion part (41) and a second fixing part (42). The second insertion part (41) passes through the bearing hole of the air intake seat (6), and at least a portion of the second fixing part (42) is located outside the bearing hole of the air intake seat (6). The second hole (40) is located in the second insertion part (41).

8. A method for assembling a screw compressor, characterized in that, The screw compressor assembly tooling used as described in any one of claims 1 to 7 comprises: The docking assembly (1) is inserted into the cylinder bore (50) of the cylinder body (5); Adjust the adjusting component (2) to the pushing base (11) so that the first outer peripheral surface (110) fits against the compression exhaust side (51) of the cylinder bore (50); The cylinder bore (50) of the cylinder block (5) is oriented toward the bearing bore of one of the exhaust seat (7) and the intake seat (6); The mating shaft (10) is inserted into the bearing hole of one of them and fixed. Position the cylinder body (5) and the connection point of the cylinder body (5); The cylinder bore (50) of the cylinder block (5) is oriented toward the bearing bore of the other of the exhaust seat (7) and the intake seat (6); The mating shaft (10) is inserted into the bearing hole of the other and fixed. Position the cylinder body (5) and the other one at their connection points; Disassemble the docking assembly (1) and the adjusting assembly (2); Connect the cylinder block (5), the intake seat (6), and the exhaust seat (7).

9. The screw compressor assembly method according to claim 8, characterized in that, Before the docking shaft (10) passes through 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.

10. The screw compressor assembly method according to claim 8, characterized in that, Before the docking shaft (10) passes through 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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