Compressor auxiliary mounting device and assembly table

Abstract

The application provides a compressor auxiliary installation device and an assembly table. The compressor auxiliary installation device is used for installation of an inner bearing of a screw compressor. The screw compressor comprises a body, a first end cover, a second end cover, at least one support shaft and at least one four-point contact ball bearing. The four-point contact ball bearing is arranged on the support shaft and abuts one of the first end cover and the second end cover. The four-point contact ball bearing comprises balls and a first mounting part. The balls are rotatably arranged on the first mounting part, and the first mounting part is sleeved on the support shaft. The compressor auxiliary installation device comprises at least one test part. The test part is sleeved on the support shaft. The test part abuts the balls and the first mounting part respectively. The side, away from the first mounting part, of the test part abuts one of the first end cover and the second end cover. In the radial direction of the support shaft, the test part and the support shaft are detachably connected. The test part is convenient to dismount or mount on the support shaft.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and in particular to a compressor auxiliary installation device and assembly table. Background Technology

[0002] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas. A screw compressor, in particular, contains a pair of meshing helical rotors, which are mounted inside the cylinder via a support shaft.

[0003] In related technologies, the bearing inner ring and the support shaft are interference-fitted. After installation, it is necessary to ensure that the bearing inner ring is located in the preset installation position on the support shaft.

[0004] During the disassembly and installation of screw compressors, there is a significant challenge in installing the inner ring of the bearing to the pre-set mounting position on the support shaft. Summary of the Invention

[0005] This application provides an auxiliary installation device and assembly platform for a compressor, which solves the problem of high installation difficulty in installing the inner ring of the bearing to the preset installation position on the support shaft during the disassembly and installation of a screw compressor.

[0006] On one hand, this application provides an auxiliary installation device for a compressor, used for installing the internal bearing of a screw compressor, the screw compressor comprising:

[0007] ontology;

[0008] The first end cap is detachably mounted on the main body;

[0009] The second end cap is detachably mounted on the side of the body opposite to the first end cap;

[0010] At least one support shaft is rotatably disposed within the body, and the support shaft is drively connected to at least one of the first end cover and the second end cover;

[0011] At least one four-point contact ball bearing is disposed on a support shaft and abuts against one of a first end cover and a second end cover; the four-point contact ball bearing includes: balls and a first mounting member; the balls are rotatably disposed on the first mounting member, and the first mounting member is sleeved on the support shaft;

[0012] Compressor auxiliary installation equipment includes:

[0013] At least one test piece is fitted onto a support shaft; the test piece abuts against a ball and a first mounting member respectively; the side of the test piece away from the first mounting member abuts against one of a first end cap and a second end cap.

[0014] In particular, the test piece and the support shaft are detachably connected in the radial direction of the support shaft.

[0015] In one embodiment, the test piece and the support shaft are clearance-fitted.

[0016] In one embodiment, there is an interference fit between the first mounting member and the support shaft.

[0017] In one embodiment, the test piece includes: a first surface, a second surface, a third surface, and a fourth surface connected in sequence; the first surface abuts against a ball; the second surface abuts against a first mounting member; the third surface abuts against a support shaft; and the fourth surface abuts against one of a first end cap and a second end cap.

[0018] In one embodiment, the first surface can be connected to the fourth surface.

[0019] In one embodiment, the test piece further includes a connecting surface, one end of which is connected to a first surface, and the other end of which is connected to a fourth surface.

[0020] In one embodiment, the support shaft is a cylindrical shaft, the first mounting component is a first ring, and the test component is a second ring;

[0021] The inner diameter of the first ring is smaller than the inner diameter of the second ring;

[0022] The outer diameter of the first ring is equal to the outer diameter of the second ring.

[0023] In one embodiment, the four-point contact ball bearing further includes:

[0024] The second mounting component is sleeved on the support shaft and abuts against the ball and the first mounting component respectively; the side of the second mounting component opposite to the first mounting component abuts against one of the first end cap and the second end cap.

[0025] In one embodiment, there is an interference fit between the second mounting member and the support shaft.

[0026] On the other hand, this application provides an assembly platform, including a compressor auxiliary installation device.

[0027] This application provides an auxiliary installation device and assembly table for a compressor. The auxiliary installation device is used for installing bearings within a screw compressor. The screw compressor includes: a body, a first end cover, a second end cover, at least one support shaft, and at least one four-point contact ball bearing. The first end cover is detachably mounted on the body; the second end cover is detachably mounted on the side of the body opposite to the first end cover; the support shaft is rotatably disposed within the body and is drively connected to at least one of the first and second end covers; the four-point contact ball bearing is disposed on the support shaft and abuts against one of the first and second end covers; the four-point contact ball bearing includes: balls and a first mounting member; the balls are rotatably disposed on the first mounting member, which is sleeved on the support shaft; the auxiliary installation device includes at least one test piece. The test piece is sleeved on the support shaft; the test piece abuts against the balls and the first mounting member respectively; the side of the test piece opposite to the first mounting member abuts against one of the first and second end covers; the test piece and the support shaft are detachably connected in the radial direction of the support shaft.

[0028] In this compressor auxiliary installation device, the first mounting component is sleeved on the support shaft, and the test component is sleeved on the support shaft. The test component abuts against the first mounting component, the ball bearing, and the first or second end cover. The test component is detachably connected to the support shaft. This allows for easy installation of the test component, reducing the installation difficulty between the four-point contact ball bearing and the support shaft, thereby improving the installation and testing efficiency between the four-point contact ball bearing and the support shaft.

[0029] Therefore, the compressor auxiliary installation device provided in the embodiments of this application can solve the problem of high installation difficulty in installing the bearing inner ring and the preset installation position on the support shaft during the disassembly and installation of screw compressors. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0031] Figure 1 A schematic diagram of the main structure of the compressor auxiliary installation device provided for an embodiment of this application;

[0032] Figure 2 A schematic diagram of the connection structure between a four-point contact ball bearing and a test piece provided for embodiments of this application;

[0033] Figure 3 A schematic diagram of the main structure of the test piece provided for an embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1-Ontology;

[0036] 2-First end cap;

[0037] 3-Second end cap;

[0038] 4-Support shaft;

[0039] 5 - Four-point contact ball bearing; 51 - Ball; 52 - First mounting component;

[0040] 6-Test piece; 61-First surface; 62-Second surface; 63-Third surface; 64-Fourth surface; 65-Connecting surface.

[0041] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0042] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas. A screw compressor, in particular, contains a pair of meshing helical rotors, rotating in opposite directions within its cylinder.

[0043] The gaps between rotors and between the housing and rotors are only 5 to 10 microns. The male rotor is driven by an engine or electric motor, while the female rotor is driven by an oil film formed by oil injection from the male rotor, or by a synchronous gear between the male and female rotors.

[0044] The grooves on the rotor fill with gas as they pass the intake port. As the rotor rotates, these grooves are sealed by the casing wall, forming a compression chamber. Once sealed, lubricating oil is sprayed into the compression chamber for sealing, cooling, and lubrication. As the rotor rotates and compresses the oil-gas mixture (lubricant and gas), the volume of the compression chamber decreases, compressing the mixture towards the exhaust port. When the compression chamber passes the exhaust port, the oil-gas mixture is discharged from the compressor, completing one intake, compression, and exhaust cycle.

[0045] like Figure 1 As shown, it should be noted that the screw compressor mainly includes: a body 1, a first end cover 2, a second end cover 3, at least one support shaft 4, and at least one four-point contact ball bearing 5. The first end cover 2 is detachably mounted on one side of the body 1; the second end cover 3 is detachably mounted on the side of the body 1 opposite to the first end cover 2; the support shaft 4 is rotatably mounted on the body 1; and the four-point contact ball bearing 5 is mounted on the support shaft 4.

[0046] It should be noted that the male and female rotors are rotatably disposed inside the main body 1.

[0047] It should be noted that each rotor of the screw compressor is supported by a support shaft 4. The support shaft 4 is equipped with the inner ring of a four-point contact ball bearing 5, and the outer ring of the four-point contact ball bearing 5 is connected to the first end cover 2 or the second end cover 3.

[0048] It should be noted that one support shaft 4 is arranged in correspondence with one male rotor or one female rotor. There is no limit to the number of support shafts 4. Examples of the number of support shafts 4 will be given below.

[0049] In one feasible implementation, a support shaft 4 is provided, and a support shaft 4 is provided corresponding to a male rotor, with the male rotor being disposed on the support shaft 4.

[0050] In another feasible implementation, a support shaft 4 is provided, and a support shaft 4 is provided corresponding to a female rotor, with the female rotor being provided on the support shaft 4.

[0051] In addition, in another feasible embodiment, two support shafts 4 are provided, one of which is corresponding to the male rotor and the male rotor is mounted on the support shaft 4; the other support shaft 4 is corresponding to the female rotor and the female rotor is mounted on the support shaft 4; the two support shafts 4 are spaced apart in the body.

[0052] It is understandable that there is no limit to the number of support shafts 4. They can be selected according to actual usage requirements, as long as one support shaft 4 is set in a corresponding position with either a male rotor or a female rotor.

[0053] It should be noted that the air intake and exhaust ports have a variety of different installation positions. The installation positions of the air intake and exhaust ports will be illustrated with examples below.

[0054] In one feasible implementation, the air intake is located on the first end cap 2, and the exhaust port is located on the second end cap 3.

[0055] In another feasible implementation, the air intake is located on the second end cap 3, and the exhaust port is located on the first end cap 2.

[0056] Understandably, there are no restrictions on the installation positions of the air intake and exhaust ports; they can be selected according to actual usage requirements.

[0057] It should be noted that the four-point contact ball bearing 5 includes: balls 51, a first mounting member 52, and an outer ring; the balls 51 are rotatably mounted on the first mounting member 52, and the first mounting member 52 is sleeved on the support shaft 4; the outer ring is located on the side of the balls 51 away from the first mounting member 52, and is connected to the balls 51 in a transmission manner.

[0058] It should be noted that the first mounting part 52 is used to be sleeved on the support shaft 4, and the outer ring is used to drive the connection between the first end cover 2 or the second end cover 3, so as to improve the running stability of the four-point contact ball bearing 5.

[0059] It should be noted that, given the various installation positions of the intake and exhaust ports, the four-point contact ball bearing 5 can have a variety of different installation positions. Examples of the installation positions of the four-point contact ball bearing 5 will be given below.

[0060] In one feasible implementation, with the air intake located on the first end cover 2 and the exhaust port located on the second end cover 3, the outer ring of the four-point contact ball bearing 5 is connected to the second end cover 3 in a driving connection.

[0061] In another feasible implementation, with the air intake located on the second end cover 3 and the exhaust port located on the first end cover 2, the outer ring of the four-point contact ball bearing 5 is connected to the first end cover 2 in a driving connection.

[0062] Understandably, there are no restrictions on the installation position of the four-point contact ball bearing 5. It can be selected according to actual usage requirements, as long as the four-point contact ball bearing 5 is placed close to the exhaust port.

[0063] It should be noted that the four-point contact ball bearing 5 located near the exhaust port needs to resist the axial thrust of the support shaft 4 and bear the radial load of the support shaft 4.

[0064] In related technologies, the four-point contact ball bearing 5 located near the exhaust port needs to provide a minimum axial running clearance between the rotor and the end cover. Therefore, during the installation process, the four-point contact ball bearing 5 needs to be installed at a preset installation position on the support shaft 4, and then the end cover at that position needs to be installed. After installation, the axial clearance between the rotor and the end cover is tested to ensure that the axial clearance between the rotor and the end cover is within the preset tolerance range, thus completing the installation.

[0065] It should be noted that in the relevant technology, the four-point contact ball bearing 5 and the support shaft 4 are interference fit. If the axial clearance between the rotor and the end cover is not within the preset tolerance range after installation, the installation position of the four-point contact ball bearing 5 relative to the support shaft 4 needs to be readjusted until the four-point contact ball bearing 5 is located in the preset installation position on the support shaft 4. Using this method has the problems of high installation difficulty and low installation efficiency.

[0066] Therefore, the embodiments of this application provide a compressor auxiliary installation device, in which a first mounting member 52 is sleeved on a support shaft 4, a test member 6 is sleeved on a support shaft 4, and the test member 6 abuts against the first mounting member 52, the ball bearing 51, and the first end cover 2 or the second end cover 3. The test member 6 is detachably connected to the support shaft 4. The test member 6 can be disassembled or installed on the support shaft 4, which has the advantage of convenient installation, thereby reducing the installation difficulty between the four-point contact ball bearing 5 and the support shaft 4, and thus improving the installation and testing efficiency between the four-point contact ball bearing 5 and the support shaft 4.

[0067] The compressor auxiliary installation device provided in the embodiments of this application includes: at least one test piece 6, which is sleeved on the support shaft 4; the test piece 6 abuts against the ball bearing 51 and the first mounting member 52 respectively; the side of the test piece 6 away from the first mounting member 52 abuts against one of the first end cover 2 and the second end cover 3; and the test piece 6 and the support shaft 4 are detachably connected in the radial direction of the support shaft 4.

[0068] Understandably, test piece 6 is used to assist in testing the installation position of the four-point contact ball bearing 5 on the support shaft 4.

[0069] It should be noted that since the four-point contact ball bearing 5 has multiple installation positions, the test piece 6 also has multiple installation positions. Examples of the installation positions of the test piece 6 will be given below.

[0070] In one feasible implementation, with the outer ring of the four-point contact ball bearing 5 in drive connection with the second end cover 3, the side of the test piece 6 facing away from the first mounting member 52 abuts against the second end cover 3.

[0071] In another feasible implementation, when the outer ring of the four-point contact ball bearing 5 is drivenly connected to the first end cover 2, the side of the test piece 6 facing away from the first mounting member 52 abuts against the first end cover 2.

[0072] It is understandable that there are no restrictions on the specific installation position of the test piece 6, and it can be selected according to the actual use requirements, as long as the side of the test piece 6 away from the first mounting piece 52 abuts against the first end cover 2 or the second end cover 3.

[0073] The compressor auxiliary mounting device of this structure allows for detachable installation between the test piece 6 and the support shaft 4, offering the advantages of convenient disassembly and installation. The test piece 6 abuts against the ball bearing 51, thus supporting the ball bearing 51 and providing safety protection for the four-point contact ball bearing 5. The test piece 6 abuts against the first mounting member 52, preventing tilting caused by uneven force on the four-point contact ball bearing 5, thereby extending the service life of the four-point contact ball bearing 5. The side of the test piece 6 facing away from the first mounting member 52 abuts against the first end cover 2 or the second end cover 3, making the screw compressor operate more stably during testing, thereby protecting the screw compressor.

[0074] Therefore, the compressor auxiliary installation device provided in the embodiments of this application can solve the problem of high installation difficulty in installing the bearing inner ring and the preset installation position on the support shaft during the disassembly and installation of screw compressors.

[0075] The test piece 6 and the support shaft 4 provided in the embodiments of this application have a clearance fit.

[0076] It should be noted that the clearance fit between the test piece 6 and the support shaft 4 can reduce the difficulty of installing and disassembling the support shaft 4 and the test piece 6, thereby reducing the installation and disassembly time between the support and the test piece 6, and improving the bearing installation efficiency of the screw compressor.

[0077] It should be noted that a gap is formed between the test piece 6 and the support shaft 4 in the direction from the support shaft 4 to the test piece 6. The size of the gap can be set in various ways. The following are examples of the size of the gap between the test piece 6 and the support shaft 4.

[0078] In one feasible implementation, the gap between the test piece 6 and the support shaft 4 in the direction from the support shaft 4 to the test piece 6 is 0.03 mm.

[0079] In another feasible implementation, the gap between the test piece 6 and the support shaft 4 in the direction from the support shaft 4 to the test piece 6 is 0.04 mm.

[0080] In addition, in another feasible embodiment, the gap between the test piece 6 and the support shaft 4 in the direction from the support shaft 4 to the test piece 6 is 0.05 mm.

[0081] It should be noted that the size of the gap between the test piece 6 and the support shaft 4 is not limited and can be selected according to actual usage requirements.

[0082] The embodiments of this application provide an interference fit between the first mounting member 52 and the support shaft 4.

[0083] It should be noted that the interference fit between the first mounting component 52 and the support shaft 4 can improve the connection strength between the first support component and the support shaft 4, thereby improving the connection stability between the four-point contact ball bearing 5 and the support shaft 4.

[0084] The test piece 6 provided in the embodiments of this application includes: a first surface 61, a second surface 62, a third surface 63 and a fourth surface 64 connected in sequence. The first surface 61 is abutting against the ball 51; the second surface 62 is abutting against the first mounting member 52; the third surface 63 is abutting against the support shaft 4; and the fourth surface 64 is abutting against one of the first end cap 2 and the second end cap 3.

[0085] It should be noted that the first surface 61 is abutting against the ball 51 to limit the movement of the ball 51 toward one side of the first surface 61, thereby improving the running stability of the ball 51 and providing safety protection for the four-point contact ball bearing 5.

[0086] It should be noted that the second surface 62 is abutted against the first mounting member 52, and the first mounting member 52 can limit the movement of the test piece 6 toward the side closer to the first mounting member 52, thereby preventing the four-point contact ball bearing 5 from shifting.

[0087] It should be noted that the third surface 63 is abutted against the support shaft 4, and the support shaft 4 can support the third surface 63, thereby limiting the movement of the test piece 6 in the radial direction of the support shaft 4, thereby improving the operational stability of the four-point contact ball bearing 5.

[0088] It should be noted that the fourth surface 64 has a variety of different contact positions, and the contact positions of the fourth surface 64 will be illustrated with examples below.

[0089] In one feasible implementation, when the test piece 6 abuts against the second end cover 3 on the side away from the first mounting member 52, the fourth surface 64 is abutting against the second end cover 3, and the second end cover 3 can limit the movement of the test piece 6 toward the side closer to the second end cover 3, so as to improve the connection stability between the four-point contact ball bearing 5 and the test piece 6, thereby providing safety protection for the compressor.

[0090] In another feasible implementation, when the side of the test piece 6 away from the first mounting member 52 abuts against the first end cover 2, the fourth surface 64 is abutting against the first end cover 2, and the first end cover 2 can limit the movement of the test piece 6 toward the side closer to the first end cover 2, so as to improve the connection stability between the four-point contact ball bearing 5 and the test piece 6, thereby providing safety protection for the compressor.

[0091] It is understandable that the contact position of the fourth surface 64 is not restricted and can be selected according to actual usage requirements, as long as the fourth surface 64 contacts the first end cap 2 or the second end cap 3.

[0092] The embodiments of this application provide a first surface 61 that can be connected to a fourth surface 64.

[0093] It should be noted that the first surface 61, the second surface 62, the third surface 63 and the fourth surface 64 together enclose the test piece 6 so that the test piece 6 can respectively abut against the four-point contact ball bearing 5 and the support shaft 4, and support the four-point contact ball bearing 5, so that the four-point contact ball bearing 5 can operate more stably during the screw compressor test.

[0094] The compressor auxiliary installation device provided in the embodiments of this application further includes: a connecting surface 65, one end of which is connected to the first surface 61, and the other end of which is connected to the fourth surface 64.

[0095] It should be noted that the connecting surface 65 is located on the side of the first surface 61 away from the support shaft 4. The connecting surface 65 can limit the movement of the ball 51 toward the side closer to the first surface 61, so as to improve the running stability of the ball 51.

[0096] It should be noted that the first surface 61, the second surface 62, the third surface 63, the fourth surface 64 and the connecting surface 65 together form the test piece 6, so that the test piece 6 can respectively abut against the four-point contact ball bearing 5 and the support shaft 4, and support the four-point contact ball bearing 5, so that the four-point contact ball bearing 5 can operate more stably during the screw compressor test.

[0097] The support shaft 4 provided in the embodiments of this application is a cylindrical shaft, the first mounting part 52 is a first ring, and the test part 6 is a second ring; the inner diameter of the first ring is smaller than the inner diameter of the second ring; the outer diameter of the first ring is equal to the outer diameter of the second ring.

[0098] It should be noted that the first ring and the second ring are respectively fitted onto the cylindrical shaft. The inner diameter of the second ring is larger than that of the first ring, which makes the connection strength between the first ring and the cylindrical shaft higher than that between the second ring and the cylindrical shaft. It also facilitates the disassembly or installation of the second ring and the cylindrical shaft. The outer diameter of the first ring is equal to that of the second ring, which facilitates the contact between the ball bearing 51 and the first ring and the second ring respectively, thereby making the operation of the ball bearing 51 more stable.

[0099] The four-point contact ball bearing 5 provided in the embodiments of this application further includes: a second mounting member, which is sleeved on the support shaft 4, and the second mounting member abuts against the ball 51 and the first mounting member 52 respectively; the side of the second mounting member away from the first mounting member 52 abuts against one of the first end cover 2 and the second end cover 3.

[0100] It should be noted that the second mounting part is used to cooperate with the first mounting part 52, and the first mounting part 52 and the second mounting part together form the inner ring of the four-point contact ball bearing.

[0101] It should be noted that the test piece 6 and the first mounting piece 52 form the inner ring of the four-point contact ball bearing during testing. Compared with the first mounting piece 52 and the second mounting piece forming the inner ring of the four-point contact ball bearing, the test piece 6 and the support shaft 4 are easier to disassemble and install, and the ball 51 and the first mounting piece 52 can be protected.

[0102] Understandably, the first mounting component 52 and the second mounting component form the inner ring of a four-point contact ball bearing. During normal use of the screw compressor, this combination provides advantages such as high connection strength and good connection stability, thereby extending the service life of the screw compressor.

[0103] It should be noted that the side of the second mounting member away from the first mounting member 52 has a variety of different abutment positions. The abutment positions of the side of the second mounting member away from the first mounting member 52 will be illustrated with examples below.

[0104] In one feasible implementation, when the outer ring of the four-point contact ball bearing 5 is drivenly connected to the second end cover 3, the side of the second mounting member opposite to the first mounting member 52 abuts against the second end cover 3.

[0105] In another feasible implementation, when the outer ring of the four-point contact ball bearing 5 is drivenly connected to the first end cover 2, the side of the second mounting member opposite to the first mounting member 52 abuts against the first end cover 2.

[0106] It is understandable that the specific abutment position of the second mounting part on the side away from the first mounting part 52 is not limited and can be selected according to actual usage requirements, as long as the side of the second mounting part away from the first mounting part 52 abuts against the first end cover 2 or the second end cover 3.

[0107] The embodiments of this application provide an interference fit between the second mounting component and the support shaft 4.

[0108] It should be noted that the interference fit between the second mounting component and the support shaft 4 can improve the connection strength between the second support component and the support shaft 4, thereby improving the connection stability between the four-point contact ball bearing 5 and the support shaft 4.

[0109] It should be noted that the compressor auxiliary installation device provided in the embodiments of this application is installed and tested through the following steps:

[0110] Step 1: Install the first mounting component 52 onto the support shaft 4;

[0111] Step 2: Install the ball bearing 51 on the side of the first mounting part 52 away from the support shaft 4;

[0112] Step 3: Continue to install the outer ring of the four-point contact ball bearing 5 on the side of the ball 51 away from the first mounting part 52;

[0113] Step 4: Place the test piece 6 on the support shaft 4. The operator grabs the test piece 6 so that it can move toward the side closer to the first mounting part 52 and abut against the ball 51 and the first mounting part 52 respectively.

[0114] Step 5: Install the first end cap 2 or the second end cap 3 onto the body 1, and make the side of the test piece 6 facing away from the first mounting piece 52 abut against the first end cap 2 or the second end cap 3.

[0115] This completes the installation and testing of the four-point contact ball bearing 5 inside the screw compressor.

[0116] It should be noted that the compressor auxiliary installation device provided in the embodiments of this application is disassembled and tested through the following steps:

[0117] Step 1: Remove the first end cap 2 or the second end cap 3;

[0118] Step 2: The operator grabs the test piece 6, so that the test piece 6 can move toward the side away from the first mounting piece 52, and release the sleeve between it and the support shaft 4.

[0119] Step 3: Disassemble the ball bearing 51 and the outer ring of the four-point contact ball bearing 5, and adjust the mounting position of the first mounting part 52 on the support shaft 4.

[0120] This completes the disassembly and testing of the four-point contact ball bearing 5 inside the screw compressor. Repeat the above installation and disassembly test steps until the four-point contact ball bearing 5 is located in the preset installation position on the first mounting component 52.

[0121] It should be noted that, when the four-point contact ball bearing 5 is located in the preset mounting position on the first mounting member 52, the compressor auxiliary mounting device provided in the embodiments of this application is installed through the following steps:

[0122] Step 1: Remove the first end cap 2 or the second end cap 3;

[0123] Step 2: The operator grabs the test piece 6, so that the test piece 6 can move toward the side away from the first mounting piece 52, and release the sleeve between it and the support shaft 4.

[0124] Step 3: The operator grabs the second mounting piece, so that the second mounting piece can move toward the side closer to the first mounting piece 52 and abut against the ball 51 and the first mounting piece 52;

[0125] Step 4: Install the first end cap 2 or the second end cap 3 onto the body 1, and make the side of the second mounting member facing away from the first mounting member 52 abut against the first end cap 2 or the second end cap 3.

[0126] This completes the installation of the screw compressor.

[0127] It should be noted that the embodiments of this application provide two support shafts 4, one of which is connected to the male rotor and the other of which is connected to the female rotor; the embodiments of this application provide two four-point contact ball bearings 5, one of which is located on the side of the male rotor away from the body 1 and the other of which is located on the side of the female rotor away from the body 1.

[0128] An embodiment of this application provides an assembly platform, including the compressor auxiliary installation device provided in the above embodiments.

[0129] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0130] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A compressor auxiliary installation device, characterized in that, For mounting of bearings within a screw compressor, the screw compressor comprising: Ontology(1); The first end cap (2) is detachably mounted on the body (1); The second end cap (3) is detachably mounted on the side of the body (1) away from the first end cap (2); At least one support shaft (4) is rotatably disposed within the body (1), and the support shaft (4) is drively connected to at least one of the first end cover (2) and the second end cover (3); At least one four-point contact ball bearing (5) is disposed on the support shaft (4) and abuts against one of the first end cover (2) and the second end cover (3); the four-point contact ball bearing (5) includes: balls (51) and a first mounting member (52); the balls (51) are rotatably disposed on the first mounting member (52), and the first mounting member (52) is sleeved on the support shaft (4); The compressor auxiliary installation device includes: At least one test piece (6) is sleeved on the support shaft (4); the test piece (6) abuts against the ball (51) and the first mounting member (52) respectively; the side of the test piece (6) away from the first mounting member (52) abuts against one of the first end cap (2) and the second end cap (3); In the radial direction of the support shaft (4), the test piece (6) and the support shaft (4) are detachably connected; The test piece (6) and the support shaft (4) are fitted with a clearance.

2. The compressor auxiliary installation device according to claim 1, characterized in that, The first mounting component (52) and the support shaft (4) are interference-fitted.

3. The compressor auxiliary installation device according to claim 1, characterized in that, The test piece (6) includes a first surface (61), a second surface (62), a third surface (63) and a fourth surface (64) connected in sequence. The first surface (61) abuts against the ball (51); the second surface (62) abuts against the first mounting piece (52); the third surface (63) abuts against the support shaft (4); and the fourth surface (64) abuts against one of the first end cap (2) and the second end cap (3).

4. The compressor auxiliary installation device according to claim 3, characterized in that, The first surface (61) can be connected to the fourth surface (64).

5. A compressor auxiliary installation device according to claim 4, characterized in that, The test piece (6) further includes a connecting surface (65), one end of which is connected to the first surface (61), and the other end of which is connected to the fourth surface (64).

6. A compressor auxiliary installation device according to any one of claims 1-5, characterized in that, The support shaft (4) is a cylindrical shaft, the first mounting part (52) is a first ring, and the test piece (6) is a second ring; The inner diameter of the first ring is smaller than the inner diameter of the second ring; The outer diameter of the first ring is equal to the outer diameter of the second ring.

7. A compressor auxiliary installation device according to any one of claims 1-5, characterized in that, The four-point contact ball bearing (5) also includes: The second mounting component is sleeved on the support shaft (4) and abuts against the ball (51) and the first mounting component (52) respectively; the side of the second mounting component away from the first mounting component (52) abuts against one of the first end cap (2) and the second end cap (3).

8. The compressor auxiliary installation device according to claim 7, characterized in that, The second mounting component and the support shaft (4) are interference-fitted.

9. An assembly platform, characterized in that, Includes a compressor auxiliary installation device according to any one of claims 1-8.

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