A shaft sleeve assembly tool

Abstract

The utility model relates to the technical field of shaft sleeve assembly tool, specifically disclose a kind of shaft sleeve assembly tool, the shaft sleeve assembly tool includes guide piece and push assembly. Among them, the positioning part and the guide part of guide piece are fixed, the positioning part is detachably connected with guide vane seat on the axial side of shaft hole, the guide part is inserted in the shaft hole and form installation space between the inner peripheral wall of shaft hole, and the guide part is used to set shaft sleeve;The rotating member of push assembly is screw transmission connection with guide part, and the abutting member is set in rotating member, when rotating member rotates relative to guide part, rotating member can move along the axis of guide part against abutting member, and abutting member is used to enter installation space against shaft sleeve. In this way, guide piece can guarantee the coaxial assembly of shaft sleeve and the shaft hole of guide vane seat, and push assembly cooperates with guide piece, which can right the shaft sleeve, so that it always maintains the coaxial state with shaft hole, reduces the link of manual participation in the assembly process of shaft sleeve and guide vane seat, improves assembly quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of shaft assembly tool technology, and in particular to a shaft assembly fixture. Background Technology

[0002] Centrifugal compressors are widely used in numerous industrial fields such as refrigeration, heat pumps, chemicals, and compressed air. They are core gas pressurization equipment in these fields, and their operation directly affects the safety, stability, and economic benefits of related equipment. The inlet guide vane device of a centrifugal compressor has a significant impact on the overall aerodynamic parameters of the compressor. It determines the flow regulation, effectively widens the operating range, saves energy and reduces consumption, and improves the compatibility between the centrifugal compressor unit and the user's system. Therefore, the stability of the inlet guide vane adjustment and its influence on the flow field in the impeller inlet area are required to be high.

[0003] like Figure 1 The diagram shows a schematic of the existing centrifugal compressor guide vane structure. The guide vane bushing is typically positioned using a standard hydraulic press and a cylindrical tooling rod. However, to avoid resonance with the impeller blades during the aerodynamic design of the guide vane device, the number of guide vanes is usually odd, such as 5, 7, or 11. This leads to the following drawbacks during guide vane bushing assembly: the bushing needs manual alignment when inserted into the guide vane seat hole; the bottom of the guide vane seat cannot contact the hydraulic press platform; the guide vane seat hole and the hydraulic press pressure rod are not aligned; and the actual coaxiality deviation of the bushing is large. These drawbacks cause the bushing to easily deform during press-fitting, resulting in numerous indentations on the end face of the bushing. Sometimes, operator errors can even cause the bushing to bend. The aforementioned drawbacks can cause the centrifugal compressor impeller inlet guide vane to jam during adjustment, leading to increased actuator torque or exceeding the upper limit. This is particularly pronounced when the centrifugal compressor load needs to be adjusted frequently, resulting in excessive wear of the bushing and even actuator burnout. Consequently, the reliability and lifespan of the centrifugal compressor will be affected during long-term operation. Utility Model Content

[0004] The purpose of this utility model is to provide a shaft sleeve assembly fixture to solve the problems of poor concentricity between the shaft sleeve and the guide vane seat during the assembly process, as well as low stability of assembly quality and slow assembly efficiency.

[0005] On the one hand, this utility model provides a shaft assembly tooling, which includes:

[0006] A shaft sleeve assembly tooling is used to install the shaft sleeve into the shaft hole of the guide vane seat. The shaft sleeve assembly tooling includes:

[0007] A guide member includes a positioning part and a guide part, the positioning part and the guide part are fixed, the positioning part is detachably connected to the guide vane seat on the axial side of the shaft hole, the guide part is inserted into the shaft hole and forms an installation space between it and the inner peripheral wall of the shaft hole, and the guide part is used to fit the shaft sleeve.

[0008] The pushing component includes a rotating member and an abutting member. The rotating member is helically connected to the guide portion, and the abutting member is sleeved on the rotating member. When the rotating member rotates relative to the guide portion, the rotating member can move along the axis of the guide portion against the abutting member. The abutting member is used to abut against the bushing and enter the installation space.

[0009] As a preferred embodiment of the aforementioned shaft assembly tooling, a positioning groove is provided at one axial end of the aforementioned shaft hole, the aforementioned positioning part is inserted into the aforementioned positioning groove and abuts against the inner sidewall of the aforementioned positioning groove, so that the aforementioned guide part is coaxial with the aforementioned shaft hole.

[0010] As a preferred embodiment of the aforementioned shaft assembly tooling, the aforementioned shaft hole and the aforementioned positioning groove are axially connected and coaxially arranged in the aforementioned guide vane seat, and the aforementioned positioning part abuts against the bottom wall of the aforementioned positioning groove along the aforementioned axial direction.

[0011] As a preferred embodiment of the aforementioned shaft assembly tooling, the aforementioned guide portion is provided with a insertion hole along the aforementioned axial direction. The insertion hole includes a smooth hole section and an internal thread section. The smooth hole section and the internal thread section are arranged sequentially along the aforementioned axial direction. The smooth hole section is located on the side of the internal thread section opposite to the aforementioned positioning portion. The aforementioned rotating member passes through the smooth hole section and is threadedly connected to the internal thread section.

[0012] Alternatively, the aforementioned rotating component includes a smooth shaft section and an external thread section, the smooth shaft section and the external thread section being arranged sequentially along the aforementioned axial direction, the smooth shaft section being located on the side of the external thread section facing away from the aforementioned abutment component, and the external thread section being threadedly connected to the aforementioned insertion hole.

[0013] As a preferred embodiment of the aforementioned shaft assembly tooling, the aforementioned pushing component further includes a bearing, the aforementioned bearing including an inner ring, an outer ring and rolling elements, the aforementioned outer ring being fixed relative to the aforementioned abutment member, the aforementioned inner ring being spaced apart from the aforementioned abutment member, the aforementioned rotating member abutting the aforementioned inner ring axially, and the aforementioned inner ring and the aforementioned outer ring rotating relative to each other through the aforementioned rolling elements.

[0014] As a preferred embodiment of the aforementioned shaft assembly tooling, the aforementioned guide portion can be inserted into the inner ring of the aforementioned bearing.

[0015] As a preferred embodiment of the aforementioned shaft assembly tooling, the aforementioned abutting member has a through hole through which the aforementioned rotating member passes, and the inner diameter of the through hole is larger than the outer diameter of the aforementioned guide portion.

[0016] As a preferred embodiment of the aforementioned shaft assembly tooling, a flexible layer is provided on the axial end face of the abutment component facing the aforementioned guide vane seat.

[0017] As a preferred embodiment of the aforementioned shaft assembly tooling, the end face of the guide portion away from the positioning portion and the outer peripheral wall of the guide portion are connected by a first guide surface. In the direction from the guide portion to the positioning portion, the first guide surface gradually moves away from the central axis of the guide member.

[0018] A shaft sleeve assembly tooling is also provided for installing the shaft sleeve into the shaft hole of the guide vane seat. The shaft sleeve assembly tooling includes:

[0019] A guide member includes a positioning part and a guide part, the positioning part and the guide part are fixed, the positioning part is detachably connected to the guide vane seat on the axial side of the shaft hole, the guide part is inserted into the shaft hole and forms an installation space between it and the inner peripheral wall of the shaft hole, and the guide part is used to fit the shaft sleeve.

[0020] The pushing assembly includes a rotating member, an abutting member, and a guide post. The rotating member is rotatably connected to the guide portion. The guide post is inserted into the guide vane seat and is parallel to the axis of the shaft hole. The abutting member is sleeved on the guide post and is helically connected to the rotating member. When the rotating member rotates relative to the guide portion, the abutting member moves axially along the guide post. The abutting member is used to abut against the bushing and enter the installation space.

[0021] The shaft assembly tooling provided by this utility model has at least the following beneficial effects:

[0022] This application provides a shaft sleeve assembly tooling for installing a shaft sleeve into the shaft hole of a guide vane seat. The shaft sleeve assembly tooling includes a guide member and a pushing assembly. The guide member includes a positioning part and a guiding part, which are fixed together. The positioning part is detachably connected to the guide vane seat on one axial side of the shaft hole. The guiding part is inserted into the shaft hole and forms an installation space between itself and the inner circumferential wall of the shaft hole. The guiding part is used to fit the shaft sleeve. The pushing assembly includes a rotating part and a pressing part. The rotating part is helically connected to the guiding part. The pressing part is fitted onto the rotating part. When the rotating part rotates relative to the guiding part, the rotating part can move along the axis of the guiding part against the pressing part. The pressing part is used to push the shaft sleeve into the installation space.

[0023] In use, first assemble the guide component with the guide vane seat. The guide portion of the guide component is inserted into the shaft hole of the guide vane seat. The positioning portion of the guide component is positioned against the guide vane seat on the outer side of one axial end of the shaft hole, so that the guide portion and the shaft hole are placed coaxially. At this time, the outer peripheral wall of the guide portion and the inner peripheral wall of the shaft hole are spaced apart to form an installation space for installing the bushing, and the end of the guide portion away from the positioning portion extends out from the other axial end of the shaft hole. The bushing is fitted onto the fitting end of the guide portion, completing the initial assembly of the bushing. Next, assemble the pushing component with the guide component. The rotating component is inserted into the guide portion, and the abutting component abuts against the axial end face of the bushing. Rotating the rotating component moves the rotating component and the abutting component closer to the side where the positioning portion is located. The abutting component pushes the bushing into the installation space along the axial direction of the shaft hole. As the abutting component moves, the bushing gradually enters the installation space. When the abutting component abuts against the axial end face of the shaft hole, it is considered that the bushing has been completely pushed into the installation space, completing the assembly of the bushing and the guide vane seat.

[0024] In this way, the guide component ensures the coaxial assembly of the bushing and the guide vane seat's shaft hole. The pushing component, in conjunction with the guide component, straightens the bushing, ensuring it remains coaxial with the shaft hole. The abutment component applies an axial force to the axial end face of the bushing, making the insertion process between the bushing and the shaft hole relatively stable, less prone to bending, deformation, or misalignment. This reduces manual intervention during the assembly of the bushing and guide vane seat, improving the consistency and yield of assembly work, and accelerating assembly efficiency. Furthermore, due to the use of this bushing assembly fixture, the assembly precision of the centrifugal compressor at the bushing and guide vane seat is improved, correspondingly increasing the reliability and lifespan of the centrifugal compressor. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a guide vane seat in the prior art;

[0026] Figure 2 This is a schematic diagram of the guide component in an embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of the shaft assembly tooling in an embodiment of the present invention. Figure 1 ;

[0028] Figure 4 This is a schematic diagram of the shaft assembly tooling in an embodiment of the present invention. Figure 2 .

[0029] In the picture:

[0030] X, axial direction; Y, radial direction;

[0031] 100. Bushing;

[0032] 200, guide vane seat; 210, shaft hole; 220, positioning groove; 221, first positioning surface A; 222, second positioning surface A;

[0033] a. Installation space;

[0034] 1. Guide component; 11. Positioning part; 111. First positioning surface B; 112. Second positioning surface B; 12. Guide part; 121. Insertion hole; 121a. Smooth hole section; 121b. Internal thread section; 12a. Mounting end; 12b. Sleeving end;

[0035] 2. Pushing component; 21. Rotating component; 211. Connecting part; 211a. Connecting end; 211b. Insertion end; 212. Second pushing part; 22. Abutting part; 221. First pushing part; 23. Bearing; 231. Inner ring; 232. Outer ring; 233. Rolling element. Detailed Implementation

[0036] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] like Figures 2 to 4 As shown, this application provides a shaft sleeve assembly tooling for installing a shaft sleeve 100 into the shaft hole 210 of a guide vane seat 200. The shaft sleeve assembly tooling includes a guide member 1 and a pushing assembly 2. The guide member 1 includes a positioning part 11 and a guiding part 12, which are fixed together. The positioning part 11 is detachably connected to the guide vane seat 200 on the axial X side of the shaft hole 210. The guiding part 12 is inserted into the shaft hole 210 and forms an installation space a between itself and the inner peripheral wall of the shaft hole 210. The guiding part 12 is used to fit the shaft sleeve 100. The pushing assembly 2 includes a rotating part 21 and an abutting part 22. The rotating part 21 is helically connected to the guiding part 12. The abutting part 22 is fitted onto the rotating part 21. When the rotating part 21 rotates relative to the guiding part 12, the rotating part 21 can move along the axis of the guiding part 12 against the abutting part 22. The abutting part 22 is used to push the shaft sleeve 100 into the installation space a.

[0041] For example, the guide member 1 includes a positioning part 11 and a guide part 12, wherein the maximum radial dimension L of the positioning part 11 is... 定位max , satisfy, L 定位max >D 轴孔 >D 导向 D 轴孔 That is, the diameter and length of the shaft hole 210, D 导向This refers to the diameter of the guide portion 12 of the guide member 1. Thus, the positioning portion 11 cannot enter the shaft hole 210, and abuts against the guide vane seat 200 on the outer side of one axial X end of the shaft hole 210, making the guide portion 12 coaxial with the shaft hole 210. The guide portion 12 has a hollow cylindrical structure and includes an mounting end 12a and a sleeve end 12b along its own axial X. The distance between the mounting end 12a and the sleeve end 12b is greater than the axial X depth of the shaft hole 210. The mounting end 12a is fixedly connected to the positioning portion 11, and the sleeve end 12b passes through the shaft hole 210 and extends out of the shaft hole 210 from the other axial X end, so that the bushing 100 can be fitted. The guide portion 12 has an insertion hole 121 along its own axial X, and the inner peripheral wall of the insertion hole 121 is provided with internal threads.

[0042] For example, the pushing component 2 includes an abutment 22 and a rotating component 21. The abutment 22 is used to abut against the end face of the bushing 100 along the axial direction X. The rotating component 21 includes a connecting end 211a and an insertion end 211b along its own axial direction X. The outer peripheral wall of the insertion end 211b is provided with an external thread. The insertion end 211b is inserted into the insertion hole 121 of the guide part 12 and is helically connected to the guide part 12 in the insertion hole 121. By rotating the rotating component 21, the rotating component 21 rotates about its axis relative to the guide vane seat 200. The rotating component 21 can move relative to the guide vane seat 200 along its own axial direction X. The abutment 22 moves in the same direction as the rotating component 21.

[0043] For example, the rotating member 21 further includes a connecting portion 211 and a second pushing portion 212. The second pushing portion 212 protrudes from the connecting end 211a of the connecting portion 211. The abutting member 22 has a through hole with a diameter D. 通孔 Satisfying D 连接部 ≤D 通孔 <L 第二推送部max , where D 连接部 That is, the diameter L of the connecting part 211. 第二推送部max This is the maximum radial Y dimension of the second pushing part 212. The abutting member 22 is sleeved on the connecting part 211 through the through hole. The second pushing part 212 abuts against the abutting member 22 on the side of the abutting member 22 opposite to the bushing 100, so that when the rotating member 21 moves along the axial X, the second pushing part 212 can abut against the abutting member 22 and the bushing 100 can move along the axial X towards the side where the shaft hole 210 is located.

[0044] In use, the guide member 1 is first assembled with the guide vane seat 200. The guide portion 12 of the guide member 1 is inserted into the shaft hole 210 of the guide vane seat 200. The positioning portion 11 of the guide member 1 abuts against the guide vane seat 200 on the outer side of one axial X end of the shaft hole 210, so that the guide portion 12 and the shaft hole 210 are placed coaxially. At this time, an installation space a for installing the bushing 100 is formed between the outer peripheral wall of the guide portion 12 and the inner peripheral wall of the shaft hole 210, and the end of the guide portion 12 away from the positioning portion 11 extends out from the other end of the shaft hole 210 on the axial X end. The bushing 100 is fitted onto the fitting end 12b of the guide portion 12, completing the initial assembly of the bushing 100. Next, the pushing component 2 is assembled with the guide component 1. The rotating component 21 is inserted into the guide part 12, and the abutting component 22 abuts against the axial X end face of the bushing 100. Rotating the rotating component 21 causes the rotating component 21 and the abutting component 22 to move closer to the side where the positioning part 11 is located. The abutting component 22 pushes the bushing 100 into the installation space a along the axial X direction of the shaft hole 210. As the abutting component 22 moves, the bushing 100 gradually enters the installation space a. When the abutting component 22 abuts against the axial X end face of the shaft hole 210, it is considered that the bushing 100 has been completely pushed into the installation space a, thus completing the assembly of the bushing 100 and the guide vane seat 200.

[0045] Thus, guide component 1 ensures coaxial assembly of bushing 100 and guide vane seat 200's shaft hole 210. Pushing component 2, in conjunction with guide component 1, straightens bushing 100, maintaining its coaxiality with shaft hole 210. Abutment component 22 applies force along the axial direction X towards the end face of bushing 100, making the insertion process of bushing 100 and shaft hole 210 relatively stable, less prone to bending, deformation, or misalignment. This reduces manual intervention during the assembly of bushing 100 and guide vane seat 200, improving the consistency and yield of assembly work, and accelerating assembly efficiency. Furthermore, due to the use of this bushing assembly fixture, the assembly accuracy of the centrifugal compressor at bushing 100 and guide vane seat 200 is improved, correspondingly increasing the reliability and lifespan of the centrifugal compressor.

[0046] It should be noted that when the rotating part 21 of the pushing component 2 is inserted into the guide part 12 of the guide part 1, the rotating part 21 is coaxial with the shaft hole 210, and the plane of the abutting part 22 that abuts against the bushing 100 is perpendicular to the axis of the shaft hole 210. In this way, it can be ensured that when the abutting part 22 pushes the bushing 100, the abutting part 22 limits the bushing 100 and can straighten the bushing 100, so that the bushing 100 always maintains the coaxial posture with the shaft hole 210 when it is assembled with the guide vane seat 200.

[0047] Furthermore, the abutment 22 and the axial X-end face of the bushing 100 form multiple contact surfaces, which are evenly distributed around the axis of the bushing 100. All contact surfaces are located in the same plane perpendicular to the axis of the shaft hole 210. Thus, the force exerted by the abutment 22 on the bushing 100 is relatively dispersed and uniform, making it less likely to cause the bushing 100 to deviate.

[0048] Preferably, the abutment 22 forms an annular contact surface with the axial X end face of the bushing 100, and the annular contact surface is coaxial with the bushing 100.

[0049] For example, guide 1 is a one-piece molded structure.

[0050] Optionally, a positioning groove 220 is provided at one end of the axial direction X of the shaft hole 210. The positioning part 11 is inserted into the positioning groove 220 and abuts against the inner side wall of the positioning groove 220, so that the guide part 12 is coaxial with the shaft hole 210.

[0051] For example, the guide vane seat 200 has a positioning groove 220 at one end of the shaft hole 210 in the axial direction X. The positioning groove 220 includes a first positioning surface A221 and a second positioning surface A222. The first positioning surface A221 is perpendicular to the axial direction X of the shaft hole 210, and the second positioning surface A222 is perpendicular to the radial direction Y of the shaft hole 210. The positioning part 11 can be inserted into the positioning groove 220. The positioning part 11 includes a first positioning surface B111 and a second positioning surface B112. The first positioning surface B111 is used to abut against the first positioning surface A221 in the axial direction X, and the second positioning surface B112 is used to abut against the second positioning surface A222 in the radial direction Y.

[0052] With this configuration, when the positioning part 11 is inserted into the positioning groove 220, the first positioning surface A221 and the first positioning surface B111 abut against each other along the axial direction X of the shaft hole 210, restricting the degree of freedom of the guide member 1 relative to the guide vane seat 200 in the axial direction X of the shaft hole 210. The second positioning surface A222 and the second positioning surface B112 abut against each other along the radial direction Y of the shaft hole 210, restricting the degree of freedom of the guide member 1 relative to the guide vane seat 200 in the radial direction Y of the shaft hole 210. The positioning part 11 and the guide vane seat 200 remain relatively stationary in the radial direction Y and the axial direction X. Since the guide part 12 is fixed to the positioning part 11, the guide part 12 and the shaft hole 210 can be coaxially inserted, and the two are not prone to relative shaking, thereby improving the coaxiality of the bushing 100 and the shaft hole 210 when it is installed.

[0053] Furthermore, since the first positioning surface A221 is perpendicular to the axial direction X of the shaft hole 210, and the second positioning surface A222 is perpendicular to the radial direction Y of the shaft hole 210, when the guide member 1 is subjected to external force, this external force is not easily decomposed into external forces in other directions. Thus, it remains stable.

[0054] Optionally, the shaft hole 210 and the positioning groove 220 are connected and coaxially arranged in the axial direction X of the guide vane seat 200, and the positioning part 11 abuts against the bottom wall of the positioning groove 220 along the axial direction X.

[0055] For example, the guide vane seat 200 has a stepped hole, including a large-diameter hole section and a small-diameter hole section. The large-diameter hole section and the small-diameter hole section are coaxially arranged, and the small-diameter hole section is located at the bottom of the large-diameter hole section. Both the large-diameter hole section and the small-diameter hole section are cylindrical cavities. The large-diameter hole section is the positioning groove 220, and the small-diameter hole section is the shaft hole 210. The inner peripheral wall of the large-diameter hole section is the second positioning surface A222, and the shoulder formed between the large-diameter end and the small-diameter hole section is the first positioning surface A221. Correspondingly, the guide member 1 is a stepped shaft, including a large-diameter shaft section and a small-diameter shaft section. The large-diameter shaft section and the small-diameter shaft section are coaxially arranged and both are cylindrical. The large-diameter shaft section is the positioning part 11, and the small-diameter shaft section is the guide part 12. The shoulder formed between the large-diameter shaft section and the small-diameter shaft section is the first positioning surface B111, and the outer peripheral wall of the large-diameter shaft section is the second positioning surface B112.

[0056] With this configuration, the shaft hole 210 and the positioning groove 220 on the guide vane seat 200 are easy to process; and the positioning part 11 and the guiding part 12 on the guide member 1 are easy to manufacture as a single piece.

[0057] In other embodiments, the positioning groove 220 is annular and surrounds the periphery of the shaft hole 210.

[0058] In other embodiments, multiple positioning grooves 220 are provided, and multiple positioning grooves 220 are provided around the axis of the shaft hole 210. Multiple positioning parts 11 are provided in one-to-one correspondence with the positioning grooves 220, and the positioning parts 11 are inserted into the positioning grooves 220.

[0059] Optionally, the guide portion 12 has an insertion hole 121 along the axial direction X. The insertion hole 121 includes a smooth section 121a and an internal thread section 121b. The smooth section 121a and the internal thread section 121b are arranged sequentially along the axial direction X. The smooth section 121a is located on the side of the internal thread section 121b that is opposite to the positioning portion 11. The rotating member 21 passes through the smooth section 121a and is threadedly connected to the internal thread section 121b. Alternatively, the rotating member 21 includes a smooth shaft section and an external thread section. The smooth shaft section and the external thread section are arranged sequentially along the axial direction X. The smooth shaft section is located on the side of the external thread section that is opposite to the abutment member 22. The external thread section is threadedly connected to the insertion hole 121.

[0060] With this configuration, the connecting part 211 of the pushing component 2 can be inserted into the insertion hole 121 along the axial direction X of the guide part 12 to complete the initial assembly, so that the connecting part 211 and the insertion hole 121 of the guide part 12 can quickly connect. Due to the establishment of the insertion relationship, the inner wall of the insertion hole 121 can limit and constrain the connecting part 211 and straighten it. The connecting part 211 and the guide part 12 can be more easily connected by screw drive. In this process, it is no longer necessary to straighten the pushing component 2 manually or with other auxiliary tools.

[0061] Optionally, the push assembly 2 also includes a bearing 23, which includes an inner ring 231, an outer ring 232 and a rolling element 233. The outer ring 232 is fixed relative to the abutment 22, the inner ring 231 is spaced apart from the abutment 22, the rotating element 21 abuts against the inner ring 231 along the axial direction X, and the inner ring 231 and the outer ring 232 rotate relative to each other through the rolling element 233.

[0062] For example, the bearing 23 includes an inner ring 231, an outer ring 232, and rolling elements 233. The outer ring 232 is sleeved outside the inner ring 231, and the rolling elements 233 are sandwiched between the inner ring 231 and the outer ring 232. The abutment member 22 has a mounting groove on the side opposite to the first pushing part 221. The bearing 23 is installed in the mounting groove. The outer ring 232 is interference-fitted with the peripheral side wall of the mounting groove. The bottom wall of the mounting groove has a clearance groove. The clearance groove is circular and its radius is larger than that of the inner ring 231. The inner ring 231 is located above the clearance groove and is spaced apart from the abutment member 22. The second pushing part 212 of the rotating member 21 contacts the inner ring 231. When the rotating member 21 rotates around its own axis, the inner ring 231 rotates with the rotating member 21, while the outer ring 232 and the abutment member 22 can remain relatively stationary with respect to the bushing 100, thereby reducing the wear on the axial X end face of the bushing 100 during assembly.

[0063] For example, bearing 23 is a thrust ball bearing.

[0064] Optionally, the guide portion 12 can be inserted into the inner ring 231 of the bearing 23. In this way, space is fully utilized, the movement distance of the push assembly 2 along the guide member 1 is further increased, and the space occupied in the axial direction X is reduced.

[0065] For example, the second pushing part 212 is in the shape of a stepped shaft, including a large diameter section and a small diameter section. The large diameter section and the small diameter section are fixed along the axial direction X. The small diameter section is inserted into the inner ring 231 of the bearing 23, and the outer side wall of the small diameter section abuts against the inner side wall of the inner ring 231 of the bearing 23. The shoulder formed between the large diameter section and the small diameter section abuts against the axial X end face of the inner ring 231. The axial X length of the small diameter section is less than the axial X length of the inner ring 231 of the bearing 23. In this way, the second pushing part 212 can straighten the bearing 23 and keep the two relatively fixed, and part of the guide part 12 can be inserted into the inner ring 231 of the bearing 23.

[0066] Optionally, the abutment member 22 has a through hole for the rotating member 21 to pass through, and the inner diameter of the through hole is larger than the outer diameter of the guide portion 12. For example, the abutment member 22 has a through hole in its middle, the connecting portion 211 of the rotating member 21 is inserted into the through hole, and the outer diameter of the guide portion 12 is R. 导外 The inner diameter of bushing 100 is R. 轴套-内 The outer diameter of bushing 100 is R 轴套-外 The inner diameter of the abutment 22 is R. 抵接-内 Satisfying the relation, R 导外 ≤R 轴套-内 ≤R 抵接-内 <R 轴套-外 Thus, during the process of the abutment 22 pushing the bushing 100 into the shaft hole 210, one end of the guide part 12 can extend into the through hole of the abutment 22.

[0067] Optionally, a flexible layer is provided on the axial X-end face of the abutment 22 facing the guide vane seat 200.

[0068] For example, the flexible layer is a rubber layer, and the first pushing part 221 forms soft contact with the end face of the bushing 100 in the axial direction X through the flexible layer, thereby reducing frictional damage caused during assembly.

[0069] Optionally, the end face of the guide portion 12 away from the positioning portion 11 and the outer peripheral wall of the guide portion 12 are connected by a first guide surface. In the direction from the guide portion 12 to the positioning portion 11, the first guide surface gradually moves away from the central axis of the guide member 1.

[0070] For example, the outer peripheral wall of the guide portion 12 includes a first variable diameter section and a first equal diameter section along the axial direction X. The first variable diameter section and the first equal diameter section are coaxially connected. The first variable diameter section is located on the side of the first equal diameter section opposite to the positioning portion 11. Along the axial direction X of the guide portion 12, the distance from the positioning portion 11 increases continuously. The shaft diameter of the first variable diameter section is equal to the maximum diameter of the first variable diameter section. The minimum diameter of the first variable diameter section is less than the inner diameter of the bushing 100. The outer peripheral wall of the first variable diameter section forms a first guide surface. In this way, it is convenient for the bushing 100 to be fitted onto the guide portion 12.

[0071] In another embodiment, a shaft sleeve assembly tooling is also provided for installing the shaft sleeve 100 into the shaft hole 210 of the guide vane seat 200, characterized in that the shaft sleeve assembly tooling includes: a guide member 1 and a pusher assembly 2. The guide component 1 includes a positioning part 11 and a guide part 12, which are fixed together. The positioning part 11 is detachably connected to the guide vane seat 200 on the axial X side of the shaft hole 210. The guide part 12 is inserted into the shaft hole 210 and forms an installation space a between itself and the inner peripheral wall of the shaft hole 210. The guide part 12 is used to fit the bushing 100. The pushing component 2 includes a rotating part 21, an abutting part 22, and a guide post. The rotating part 21 is rotatably connected to the guide part 12. The guide post is inserted into the guide vane seat 200 and is parallel to the axis of the shaft hole 210. The abutting part 22 is fitted onto the guide post and is helically connected to the rotating part 21. When the rotating part 21 rotates relative to the guide part 12, the abutting part 22 moves along the axial direction of the guide post. The abutting part 22 is used to abut against the bushing 100 and enter the installation space a.

[0072] With this configuration, when the rotating component 21 is rotated, there is no longer any axial relative movement between the rotating component 21 and the guide component 1. Since the abutment component 22 is screw-driven connected to the rotating component 21 and slidably connected to the guide post, the abutment component 22 can move along the axial direction of the guide post when the rotating component 21 rotates, so as to abut the bushing 100 into the installation space a.

[0073] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A shaft sleeve assembly fixture for installing a shaft sleeve (100) into a shaft hole (210) of a guide vane seat (200), characterized in that, The shaft assembly tooling includes: The guide member (1) includes a positioning part (11) and a guide part (12). The positioning part (11) and the guide part (12) are fixed. The positioning part (11) is detachably connected to the guide vane seat (200) on the axial (X) side of the shaft hole (210). The guide part (12) is inserted into the shaft hole (210) and forms an installation space (a) between itself and the inner peripheral wall of the shaft hole (210). The guide part (12) is used to fit the bushing (100). The pushing component (2) includes a rotating part (21) and an abutting part (22). The rotating part (21) is helically connected to the guide part (12). The abutting part (22) is sleeved on the rotating part (21). When the rotating part (21) rotates relative to the guide part (12), the rotating part (21) can move along the axis of the guide part (12) against the abutting part (22). The abutting part (22) is used to abut against the bushing (100) and enter the installation space (a).

2. The shaft assembly fixture according to claim 1, characterized in that, The shaft hole (210) has a positioning groove (220) at one axial (X) end. The positioning part (11) is inserted into the positioning groove (220) and abuts against the inner side wall of the positioning groove (220), so that the guide part (12) is coaxial with the shaft hole (210).

3. The shaft assembly fixture according to claim 2, characterized in that, The shaft hole (210) and the positioning groove (220) are connected and coaxially arranged in the axial direction (X) of the guide vane seat (200), and the positioning part (11) abuts against the bottom wall of the positioning groove (220) along the axial direction (X).

4. The shaft assembly fixture according to claim 1, characterized in that, The guide portion (12) has a insertion hole (121) along the axial direction (X). The insertion hole (121) includes a smooth section (121a) and an internal thread section (121b). The smooth section (121a) and the internal thread section (121b) are arranged sequentially along the axial direction (X). The smooth section (121a) is located on the side of the internal thread section (121b) that is opposite to the positioning portion (11). The rotating member (21) passes through the smooth section (121a) and is threadedly connected to the internal thread section (121b). Alternatively, the rotating component (21) includes an optical axis section and an external thread section, the optical axis section and the external thread section are arranged sequentially along the axial direction (X), the optical axis section is located on the side of the external thread section opposite to the abutment component (22), and the external thread section is threadedly connected to the insertion hole (121).

5. The shaft assembly tooling according to claim 1, characterized in that, The pushing component (2) further includes a bearing (23), which includes an inner ring (231), an outer ring (232), and a rolling element (233). The outer ring (232) is fixed relative to the abutment (22), the inner ring (231) is spaced apart from the abutment (22), the rotating element (21) abuts against the inner ring (231) axially, and the inner ring (231) and the outer ring (232) rotate relative to each other through the rolling element (233).

6. The shaft assembly tooling according to claim 5, characterized in that, The guide portion (12) can be inserted into the inner ring of the bearing (23).

7. The shaft assembly tooling according to claim 1, characterized in that, The abutting member (22) has a through hole through which the rotating member (21) passes, and the inner diameter of the through hole is larger than the outer diameter of the guide part (12).

8. The shaft assembly tooling according to claim 1, characterized in that, The abutment (22) has a flexible layer on its axial (X) end face facing the guide vane seat (200).

9. The shaft assembly tooling according to claim 1, characterized in that, The end face of the guide part (12) away from the positioning part (11) and the outer peripheral wall of the guide part (12) are connected by a first guide surface. In the direction from the guide part (12) to the positioning part (11), the first guide surface gradually moves away from the central axis of the guide member (1).

10. A shaft sleeve assembly fixture for installing a shaft sleeve (100) into a shaft hole (210) of a guide vane seat (200), characterized in that, The shaft assembly tooling includes: The guide member (1) includes a positioning part (11) and a guide part (12). The positioning part (11) and the guide part (12) are fixed. The positioning part (11) is detachably connected to the guide vane seat (200) on the axial (X) side of the shaft hole (210). The guide part (12) is inserted into the shaft hole (210) and forms an installation space (a) between itself and the inner peripheral wall of the shaft hole (210). The guide part (12) is used to fit the bushing (100). The push assembly (2) includes a rotating member (21), an abutting member (22), and a guide post. The rotating member (21) is rotatably connected to the guide portion (12). The guide post is inserted into the guide vane seat (200) and is parallel to the axis of the shaft hole (210). The abutting member (22) is sleeved on the guide post and is helically connected to the rotating member (21). When the rotating member (21) rotates relative to the guide portion (12), the abutting member (22) moves along the axial direction of the guide post. The abutting member (22) is used to abut against the bushing (100) and enter the installation space (a).

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