A retaining ring installation method and system

Abstract

The present application relates to the technical field of mechanical assembly, in particular to a retainer ring installation method and system. The retainer ring installation method comprises: based on the end surface of the shaft rod unit abutting against the guide assembly pre-installed with the retainer ring assembly, driving the pressing assembly to move along the pressing direction; based on the pressing assembly moving along the pressing direction, the pressing unit and at least part of the detection unit abutting against the end surface of the retainer ring assembly along the pressing direction and providing the acting force for the retainer ring assembly moving along the pressing direction; wherein the pressing assembly comprises the pressing unit and the detection unit; the inner peripheral wall of the detection unit is movably connected with the outer peripheral wall of the pressing unit, and the detection unit is elastically connected with the pressing unit along the pressing direction; the guide assembly is detachably located in the pressing unit. In this way, the problem of how to improve the installation and detection efficiency of the retainer ring assembly is solved.

Description

Technical Field

[0001] This invention relates to the field of mechanical assembly technology, and more specifically, to a method and system for installing retaining rings. Background Technology

[0002] In the field of mechanical assembly, retaining rings (also known as snap rings) are widely used for axial positioning of shafts or holes. When installing the retaining ring into the groove on the outer circumference of the shaft, the following methods are typically used: First, manually expanding or compressing the retaining ring with tools such as snap ring pliers and placing it into the groove, relying on the retaining ring's own elastic restoring force to lock it into place; second, using specialized press-fitting fixtures, first fitting the retaining ring onto a guide sleeve or guide post, and then using a pressure head to press the retaining ring axially into the groove.

[0003] The existing installation methods described above still have the following shortcomings: First, manual installation relies on operator skills, resulting in low efficiency and poor quality consistency. Even with press-fitting fixtures, without stable guidance and positioning, the retaining ring is prone to skewing or uneven stress during press-fitting, leading to incomplete installation. Second, the existing press-fitting process typically lacks a final-state inspection method to ensure the retaining ring is accurately engaged in the groove. The potential quality issue of incomplete engagement is difficult to detect in a timely manner, affecting the reliability of subsequent assembly. Therefore, a technical solution is urgently needed to improve the efficiency of retaining ring installation and inspection. Summary of the Invention

[0004] To address the problem of improving the installation and testing efficiency of retaining ring assemblies, this invention provides a retaining ring installation method and system.

[0005] In a first aspect, the present invention provides a method for installing a retaining ring, the method comprising:

[0006] Based on the guide assembly with the pre-installed retaining ring assembly abutting against the end face of the shaft unit, the driving pressing assembly moves along the pressing direction;

[0007] Based on the movement of the pressing assembly along the pressing direction, the pressing unit and at least part of the detection unit abut against the end face of the retaining ring assembly along the pressing direction and provide a force for the retaining ring assembly to move along the pressing direction; wherein, the pressing assembly includes the pressing unit and the detection unit; the inner peripheral wall of the detection unit is movably connected to the outer peripheral wall of the pressing unit and the detection unit is elastically connected to the pressing unit along the pressing direction; the guide assembly is detachably located inside the pressing unit.

[0008] Optionally, it also includes:

[0009] The pressing unit and at least part of the detection unit provide a force to move the retaining ring assembly along the pressing direction, driving the retaining ring assembly to move along the pressing direction on the guide assembly until it abuts against the end face of the pin unit; wherein, the pin unit is sleeved on one end of the shaft unit facing the pressing assembly;

[0010] Based on the contact between the end face of the retaining ring assembly and the pin unit, the retaining ring assembly and the pin unit are driven to move a preset distance along the pressing direction;

[0011] Based on the movement of the retaining ring assembly and the pin unit along the preset stroke, the retaining ring assembly is detected to be engaged in the mounting groove; wherein, the outer peripheral wall of the shaft unit is provided with the mounting groove.

[0012] Optionally, the step of moving the preset stroke based on the retaining ring assembly and the pin unit, and detecting that the retaining ring assembly is engaged in the mounting groove, includes:

[0013] Based on the movement of the retaining ring assembly and the pin unit, the preset stroke is moved to obtain the actual movement stroke of the detection unit and the contact state between the inner peripheral wall of the detection unit and the outer peripheral wall of the retaining ring assembly is obtained.

[0014] Based on the fact that the actual travel of the detection part after the elastic deformation of the elastic part is within the standard travel range, and that the inner peripheral wall of the detection part abuts or is spaced from the outer peripheral wall of the retaining ring assembly, the retaining ring assembly is obtained to be engaged in the mounting groove; wherein, the detection unit includes a detection part and an elastic part; the two ends of the elastic part are elastically connected to the pressing unit and the detection part respectively, and can be elastically compressed when the detection part moves along the pressing direction.

[0015] Optionally, based on the movement of the pressing assembly along the pressing direction, the pressing unit and at least part of the detection unit abut against the end face of the retaining ring assembly along the pressing direction and provide a force for the retaining ring assembly to move along the pressing direction, including:

[0016] Based on the movement of the pressing assembly along the pressing direction, the pressing main body and a plurality of pressing protrusions abut against the first preset position of the retaining ring assembly; wherein, the pressing unit includes the pressing main body and a plurality of pressing protrusions spaced apart on the pressing main body; the plurality of pressing protrusions extend radially away from the pressing main body from the pressing main body;

[0017] Based on the synchronous movement of at least a portion of the detection unit and the pressing assembly along the pressing direction, the second detection body abuts against the second preset position of the retaining ring assembly; wherein, the detection unit further includes a first detection body and a second detection body; the first detection body and the second detection body are sequentially connected along the pressing direction;

[0018] Based on the contact between the pressing main body and the plurality of pressing protrusions and the first preset position, and the synchronous contact between the second detection body and the second preset position of the retaining ring assembly, the pressing unit and the second detection body provide the force for the retaining ring assembly to move along the pressing direction.

[0019] Optionally, it also includes:

[0020] Based on the second detection body abutting against the second preset position of the retaining ring assembly, multiple pressing protrusions are located within the first installation space, the avoidance area of ​​the second detection body avoids the first installation space, and the second detection body is located within the second installation space; wherein, the detection unit further includes multiple avoidance areas; the avoidance areas are located between adjacent pressing protrusions and are disposed on the second detection body.

[0021] Optionally, the first installation space is a circumferential accommodating space for the rolling elements and the shaft unit, which are radially spaced apart; the second installation space is a circumferential accommodating space for the shaft unit to avoid the rolling elements; the pin unit includes a pin body, a pin connector, and a plurality of rolling elements; the pin body is sleeved on one end of the shaft unit; the plurality of pin connectors are spaced apart on the pin body and extend radially away from the pin body; the rolling elements are movably connected to the side of the pin connectors away from the pin body.

[0022] Optionally, the first preset position includes a first pressing surface of the retaining ring assembly along the radial direction and at least a portion of a second pressing surface along the radial direction within the first mounting space; wherein, the retaining ring assembly includes a first pressing surface and a second pressing surface arranged sequentially along the radial direction; the first pressing surface and the second pressing surface have the same radial dimension;

[0023] The second preset position includes at least a portion of the second pressing surface within the second installation space.

[0024] Optionally, the step of moving the retaining ring assembly and the pin unit by the preset stroke and detecting that the retaining ring assembly is engaged in the mounting groove further includes:

[0025] Based on the fact that the travel distance is not within the standard travel range and / or the inner peripheral wall of the detection part does not abut against or gap from the outer peripheral wall of the retaining ring assembly, a fault is found in the retaining ring assembly engaging with the mounting groove.

[0026] In a second aspect, the present invention provides a retaining ring mounting system, the retaining ring mounting system comprising:

[0027] The body assembly includes a base unit and a drive unit disposed on the base unit;

[0028] A pressing assembly includes a pressing unit and a detection unit that are driven and connected to the driving unit; the inner peripheral wall of the detection unit is movably connected to the outer peripheral wall of the pressing unit and the detection unit is elastically connected to the pressing unit along the pressing direction; wherein the pressing unit is hollow inside;

[0029] A guide assembly is detachably located within the pressing unit;

[0030] A retaining ring assembly can be fitted onto the guide assembly; in the preset state of the retaining ring installation system, the driving unit drives the pressing unit and at least part of the detection unit to abut against the end face of the retaining ring assembly along the pressing direction and provides a force for the retaining ring assembly to move along the pressing direction.

[0031] Optionally, the detection unit includes a detection section, an elastic section, and multiple clearance areas; the detection section includes a first detection body and a second detection body; the first detection body and the second detection body are connected sequentially along the pressing direction; the side of the first detection body away from the second detection body is connected to the pressing unit through the elastic section; the multiple clearance areas are circumferentially spaced on the second detection body; wherein, in the preset state, based on the movement of the detection section along the pressing direction, the elastic section undergoes elastic deformation.

[0032] To address the problem of improving the installation and testing efficiency of retaining ring assemblies, this invention offers the following advantages:

[0033] By using a guide assembly pre-installed with a retaining ring assembly, and ensuring the guide assembly abuts against the end face of the shaft unit before driving the pressing assembly, the guide assembly becomes detachable within the pressing unit. This allows the retaining ring assembly to be aligned and guided relative to the shaft unit before pressing, preventing misalignment during pressing and improving installation consistency and efficiency. The pressing unit and at least some detection units abut against the end face of the retaining ring assembly along the pressing direction, providing the force for the retaining ring assembly to move along the pressing direction. This ensures the pressing force is transmitted smoothly and at multiple points on the end face of the retaining ring assembly, guaranteeing the stability of the pressing process. The detection unit's inner circumferential wall is movably connected to the outer circumferential wall of the pressing unit, and the detection unit is elastically connected to the pressing unit along the pressing direction. This allows the detection unit to float elastically with the end face of the retaining ring assembly and adaptively abut, participating in providing the pressing force and subsequently reflecting the contact and displacement state with the retaining ring assembly through its own elastic displacement, providing a structural basis for accurately determining whether the retaining ring assembly is in place. Therefore, this invention solves the problem of how to improve the installation and testing efficiency of the retaining ring assembly during the installation process. Attached Figure Description

[0034] Figure 1 A schematic diagram of a retaining ring installation method according to one embodiment is shown;

[0035] Figure 2 A perspective view of a retaining ring mounting system according to one embodiment is shown;

[0036] Figure 3 A perspective view of a retaining ring mounting system pin unit according to one embodiment is shown;

[0037] Figure 4 Another perspective view of a retaining ring mounting system pin unit according to one embodiment is shown;

[0038] Figure 5 Another perspective view of a retaining ring mounting system according to one embodiment is shown;

[0039] Figure 6 A perspective view of a detection unit for a retaining ring mounting system according to one embodiment is shown;

[0040] Figure 7 A perspective view of a retaining ring mounting system pressing unit according to one embodiment is shown;

[0041] Figure 8 A perspective view of a retaining ring assembly of a retaining ring mounting system according to one embodiment is shown;

[0042] Figure 9 A cross-sectional view of a retaining ring mounting system according to one embodiment is shown.

[0043] Reference numerals: 10. Body assembly; 11. Base unit; 111. Base main body; 112. First fixing part; 113. Second fixing part; 114. Fixing groove; 115. Third fixing part; 12. Drive unit; 121. First drive unit; 122. Second drive unit; 20. Guide assembly; 30. Pressing assembly; 31. Pressing unit; 311. Pressing main body; 312. Pressing protrusion; 32. Detection Unit; 321, Detection section; 3211, First detection body; 3212, Second detection body; 322, Avoidance area; 323, Elastic part; 40, Retaining ring assembly; 41, First pressing surface; 42, Second pressing surface; 50, Shaft assembly; 51, Shaft unit; 52, Mounting groove; 53, Pin unit; 531, Pin body; 532, Pin connector; 533, Rolling element; 54, First mounting space; 55, Second mounting space. Detailed Implementation

[0044] The invention will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are described merely to enable those skilled in the art to better understand and thus implement the invention, and are not intended to imply any limitation on the scope of the invention.

[0045] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments and are not intended to limit the indicated systems, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two systems, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different systems, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated systems, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0046] In existing technologies, retaining rings are typically installed manually using tools such as snap ring pliers to expand or compress them before placing them into grooves, relying on the retaining ring's own elastic restoring force to lock them into place. Alternatively, specialized press-fitting fixtures are used, where the retaining ring is first fitted onto a guide sleeve or guide post, and then a pressure head is used to press the retaining ring axially into the groove. However, manual installation relies on operator skill, resulting in low efficiency and inconsistent quality. Even with press-fitting fixtures, without stable guidance and positioning, the retaining ring is prone to skewing or uneven stress during press-fitting, leading to incomplete installation. Moreover, existing press-fitting processes usually lack final-state detection methods to ensure the retaining ring is accurately engaged in the groove, making it difficult to detect quality issues such as incomplete engagement in a timely manner, affecting the reliability of subsequent assembly. Therefore, a retaining ring installation method is needed to address the problem of improving the efficiency of retaining ring installation and inspection.

[0047] Example 1:

[0048] This embodiment discloses a method for installing a retaining ring. Please refer to [reference needed]. Figure 1 This includes steps S10-S20:

[0049] Step S10: Based on the contact between the guide assembly 20, which has the retaining ring assembly 40 pre-installed, and the end face of the shaft unit 51, drive the pressing assembly 30 to move along the pressing direction; pre-install the retaining ring assembly 40 on the guide assembly 20 so that the guide assembly 20 can be pre-aligned with the relative position of the retaining ring assembly 40 and the shaft unit 51, providing a stable initial alignment foundation for the subsequent pressing process, which is beneficial to improving the efficiency of the retaining ring assembly 40 installation.

[0050] Step S20: Based on the movement of the pressing assembly 30 along the pressing direction, the pressing unit 31 and at least part of the detection unit 32 abut against the end face of the retaining ring assembly 40 along the pressing direction and provide a force for the retaining ring assembly 40 to move along the pressing direction; wherein, the pressing assembly 30 includes the pressing unit 31 and the detection unit 32; the inner peripheral wall of the detection unit 32 is movably connected to the outer peripheral wall of the pressing unit 31 and the detection unit 32 is elastically connected to the pressing unit 31 along the pressing direction; the guide assembly 20 is detachably located inside the pressing unit 31. The pressing unit 31 and at least some of the detection units 32 abut against the end face of the retaining ring assembly 40 along the pressing direction, so that the pressing unit 31 and the detection units 32 abut against the end face of the retaining ring assembly 40 at multiple points. By applying a pressing force to the retaining ring assembly 40 simultaneously by the pressing unit 31 and at least some of the detection units 32, and by detachably placing the guide component 20 inside the pressing unit 31, the retaining ring assembly 40 is subjected to uniform force and is not easily tilted during installation, which is beneficial to improving the installation and testing efficiency of the retaining ring assembly 40.

[0051] Specifically, in related technologies, when using a dedicated press-fitting fixture to install the retaining ring, the retaining ring needs to be fitted into the guide sleeve first, and then the retaining ring is pressed into the groove axially with the help of a press head. This method lacks a means of detecting whether the retaining ring is accurately engaged in the groove. In this application, at least a portion of the detection unit 32 and the pressing assembly 30 are moved synchronously along the pressing direction, so that the pressing unit 31 and at least a portion of the detection unit 32 abut against the end face of the retaining ring assembly 40. This not only increases the means of detecting the retaining ring assembly 40 after installation, but also improves the efficiency of installing the retaining ring assembly 40.

[0052] Specifically, by movably connecting the inner peripheral wall of the detection unit 32 to the outer peripheral wall of the pressing unit 31, and elastically connecting the two along the pressing direction, the detection unit 32 can elastically float relative to the pressing unit 31 along the pressing direction, so that the detection unit 32 can undergo elastic deformation and rebound during the subsequent detection of the retaining ring being installed in place, thereby improving the accuracy of the detection of the retaining ring assembly 40 installation.

[0053] Specifically, steps S10, S20, S30, S40 and S50 are executed sequentially, as detailed below.

[0054] Furthermore, the retaining ring installation method also includes steps S30-S50:

[0055] Step S30 involves using the pressing unit 31 and at least part of the detection unit 32 to provide a force for the retaining ring assembly 40 to move along the pressing direction, driving the retaining ring assembly 40 on the guide assembly 20 until it abuts against the end face of the pin unit 53. The pin unit 53 is sleeved on the end of the shaft unit 51 facing the pressing assembly 30. By moving the retaining ring assembly 40 along the pressing direction until it abuts against the end face of the pin unit 53, the pin unit 53 provides guidance and positioning for the subsequent installation of the retaining ring assembly 40 into the mounting groove 52, preventing the retaining ring assembly 40 from being misaligned or improperly installed during subsequent installation. In this solution, after the retaining ring assembly 40 is installed in place, it can constrain the shaft unit on the shaft unit 51, preventing the shaft unit from shifting or falling off the shaft unit 51.

[0056] In step S40, based on the end face contact between the retaining ring assembly 40 and the pin unit 53, the retaining ring assembly 40 and the pin unit 53 are driven to move a preset stroke along the pressing direction. The preset stroke refers to the stroke when the pressing unit 31 presses the retaining ring assembly 40 and the end face contact with the pin unit 53, the pressing unit 31 presses the retaining ring assembly 40, and the retaining ring assembly 40 presses the pin unit 53 until the retaining ring assembly 40 is engaged in the mounting groove 52 of the shaft assembly 50.

[0057] Step S50: Based on the preset travel of the retaining ring assembly 40 and the pin unit 53, detect that the retaining ring assembly 40 is engaged in the mounting groove 52; wherein, the outer peripheral wall of the shaft unit 51 is provided with the mounting groove 52.

[0058] For details, please refer to Figure 2 , Figure 3 and Figure 9 After the pressing unit 31 and the detection unit 32 jointly provide the force for the retaining ring assembly 40 to move along the pressing direction, the retaining ring assembly 40 abuts against the end face of the pin unit 53 under the guidance of the guide assembly 20 until the retaining ring assembly 40 is engaged in the mounting groove 52 on the outer peripheral wall of the shaft unit 51. Then, the detection unit 32 is used to confirm the accuracy of the installation position of the retaining ring assembly 40, thus further realizing the complete detection process of the retaining ring assembly 40 from guiding, pressing to engaging.

[0059] Further, step S50, based on the preset travel distance of the retaining ring assembly 40 and the pin unit 53, detects that the retaining ring assembly 40 is engaged in the mounting groove 52, including steps S51-S52:

[0060] Step S51: Based on the preset travel of the retaining ring assembly 40 and the pin unit 53, obtain the actual travel of the detection unit 321 and the contact state between the inner peripheral wall of the detection unit 321 and the outer peripheral wall of the retaining ring assembly 40; wherein, the actual travel refers to the sum of the two distances: the distance from when the detection unit 321 initially moves together with the pressing unit 31 to press the retaining ring assembly 40 into the mounting groove 52 along the pressing direction, and the distance after the retaining ring assembly 40 is engaged in the mounting groove 52, after which the detection unit 321 detects along the pressing direction.

[0061] Step S52: Based on the fact that the actual travel of the detection unit 321 after the elastic deformation of the elastic part 323 is within the standard travel range and that the inner peripheral wall of the detection unit 321 abuts or is spaced from the outer peripheral wall of the retaining ring assembly 40, the retaining ring assembly 40 is engaged in the mounting groove 52; wherein, the detection unit 32 includes the detection part 321 and the elastic part 323; the two ends of the elastic part 323 are elastically connected to the pressing unit 31 and the detection part 321 respectively, and can be elastically compressed when the detection part 321 moves along the pressing direction.

[0062] Specifically, after the elastic part 323 undergoes elastic deformation due to the movement of the detection part 321 along the pressing direction, if the actual travel of the detection part 321 falls within the standard travel range, and the inner peripheral wall of the detection part 321 is in contact with or separated from the outer peripheral wall of the retaining ring assembly 40, then it is determined that the retaining ring assembly 40 has been engaged in the mounting groove 52. Thus, by combining the actual travel and contact conditions as criteria, it is possible to reliably distinguish whether the retaining ring assembly 40 is correctly engaged or still not in position, improving the accuracy of the detection.

[0063] Specifically, steps S10, S20, S21, S22, and S23 are executed sequentially, as detailed below.

[0064] Further, based on the movement of the pressing assembly 30 along the pressing direction, the pressing unit 31 and at least part of the detection unit 32 abut against the end face of the retaining ring assembly 40 along the pressing direction and provide a force for the retaining ring assembly 40 to move along the pressing direction, including steps S21-S23:

[0065] In step S21, based on the movement of the pressing assembly 30 along the pressing direction, the pressing main body 311 and the plurality of pressing protrusions 312 abut against the first preset position of the retaining ring assembly 40; wherein, the pressing unit 31 includes the pressing main body 311 and the plurality of pressing protrusions 312 spaced apart on the pressing main body 311; the plurality of pressing protrusions 312 extend radially away from the pressing main body 311;

[0066] For details, please refer to Figure 7 and Figure 5By setting multiple pressing protrusions 312 extending radially away from the pressing main body 311, the pressing main body 311 and the multiple pressing protrusions 312 together form a first preset position that abuts against the first preset position of the retaining ring assembly 40, so that the pressing force is transmitted at multiple points in the circumference of the retaining ring assembly 40, avoiding deformation or skewing of the retaining ring assembly 40 due to single-point force.

[0067] Step S22: Based on the synchronous movement of at least a portion of the detection unit 32 and the pressing assembly 30 along the pressing direction, the second detection body 3212 abuts against the second preset position of the retaining ring assembly 40; wherein, the detection unit 32 further includes a first detection body 3211 and a second detection body 3212; the first detection body 3211 and the second detection body 3212 are connected sequentially along the pressing direction;

[0068] Specifically, by having at least a portion of the detection unit 32 move synchronously with the pressing assembly 30 along the pressing direction, and the second detection body 3212 of the detection unit 32 abuts against the second preset position of the retaining ring assembly 40, the step of pressing back and then detecting is avoided during the retaining ring installation process, thereby achieving synchronous output of the detection unit 32 and the pressing assembly 30 and improving the efficiency of retaining ring installation and detection.

[0069] In step S23, based on the pressing body 311 and multiple pressing protrusions 312 abutting against the first preset position and the second detection body 3212 abutting against the second preset position of the retaining ring assembly 40, the pressing unit 31 and the second detection body 3212 provide a force for the retaining ring assembly 40 to move along the pressing direction.

[0070] For details, please refer to Figure 2 , Figure 6 and Figure 7 When the pressing main body 311 and the multiple pressing protrusions 312 abut at the first preset position of the retaining ring assembly 40 and the second detection body 3212 abuts at the second preset position of the retaining ring assembly 40 simultaneously, the pressing unit 31 and the second detection body 3212 together provide force for the retaining ring assembly 40 to move along the pressing direction, so that the retaining ring assembly 40 is subjected to more balanced force and the pressing is more stable, while improving the installation efficiency of the retaining ring assembly 40.

[0071] Furthermore, step S22 also includes step S221:

[0072] Step S221: Based on the second preset position of the second detection body 3212 abutting against the retaining ring assembly 40, multiple pressing protrusions 312 are located in the first installation space 54, the avoidance area 322 of the second detection body 3212 avoids the first installation space 54, and the second detection body 3212 is located in the second installation space 55; wherein, the detection unit 32 also includes multiple avoidance areas 322; the avoidance areas 322 are located between adjacent pressing protrusions 312 and are disposed on the second detection body 3212.

[0073] Specifically, by forming a clearance fit between the pressing protrusion 312 and the second detection body 3212 of the detection body in the radial and circumferential directions, interference between the pressing protrusion 312 and the components in the first installation space 54 is avoided. This allows the pressing unit 31 and the detection unit 32 to coordinate their movements within their respective accommodating spaces, ensuring that the pressing unit 31 and the detection unit 32 do not interfere with each other during the pressing and detection process, thereby improving the efficiency of installing and detecting the retaining ring assembly 40.

[0074] Furthermore, the first installation space 54 is a circumferential accommodating space for the rolling elements 533 and the shaft unit 51, which are radially spaced apart; the second installation space 55 is a circumferential accommodating space for the shaft unit 51 to avoid the rolling elements 533; the pin unit 53 includes a pin body 531, a pin connector 532, and a plurality of rolling elements 533; the pin body 531 is sleeved on one end of the shaft unit 51; the plurality of pin connectors 532 are spaced apart on the pin body 531 and extend radially away from the pin body 531; the rolling elements 533 and the pin connectors 532 are movably connected to each other on the side away from the pin body 531.

[0075] For details, please refer to Figure 4 and Figure 5 The first mounting space 54 and the second mounting space 55 together constitute the rolling fit area between the pin unit 53 and the shaft unit 51. The pin unit 53 forms a relatively rotatable rolling fit with the shaft unit 51 through the rolling elements 533. During the installation of the retaining ring assembly 40, the pin unit 53 can serve as a guide and support before the retaining ring assembly 40 is pressed into the mounting groove 52. Furthermore, the circumferential distribution of its rolling elements 533 creates spatial clearance with the pressing protrusion 312 and the detection unit 32, allowing the pressing and detection to be carried out collaboratively at different radial positions of the shaft unit 51. The first mounting space 54 is a circumferentially spaced space with radial intervals. Compared with the second mounting space 55, the first mounting space 54 has a smaller volume to accommodate the additional pressing protrusion 312 in the pressing unit 31, while the second mounting space 55 is larger to accommodate the second detection body 3212.

[0076] Furthermore, the first preset position includes a first pressing surface 41 of the retaining ring assembly 40 along the radial direction and at least a portion of a second pressing surface 42 along the radial direction within the first mounting space 54; wherein, the retaining ring assembly 40 includes a first pressing surface 41 and a second pressing surface 42 arranged sequentially along the radial direction; the first pressing surface 41 and the second pressing surface 42 have the same dimensions along the radial direction.

[0077] For details, please refer to Figure 2 and Figure 8 The retaining ring assembly 40 includes a first pressing surface 41 and a second pressing surface 42 arranged radially. The first pressing surface 41 and the second pressing surface 42 have the same width in the radial direction but different diameters, so that the retaining ring assembly 40 has a continuous and equal-width force-bearing surface at both ends in the radial direction. This avoids excessive local pressure caused by uneven force-bearing surface in the pressing assembly 30, which would affect the installation and testing of the retaining ring assembly 40.

[0078] Furthermore, the second preset position includes at least a portion of the second pressing surface 42 within the second mounting space 55.

[0079] Specifically, the main body of the pressing unit 31 and the pressing protrusion 312 can abut against the first pressing surface 41 and the second pressing surface 42 in the first mounting space 54, and the second detection body 3212 can abut against the second pressing surface 42 in the second mounting space 55, so that the retaining ring assembly 40 can obtain the transmission of pressing and detection forces at different radial positions, avoiding excessive local stress and improving the stability of pressing.

[0080] Specifically, steps S10, S20, S30, S40, S50 and S60 are executed sequentially, as detailed below.

[0081] Furthermore, based on the preset travel distance of the retaining ring assembly 40 and the pin unit 53, detecting that the retaining ring assembly 40 is engaged in the mounting groove 52 also includes step S60:

[0082] Step S60: Based on the fact that the travel distance is not within the standard travel distance and / or the inner peripheral wall of the detection unit 321 does not abut against or gap with the outer peripheral wall of the retaining ring assembly 40, a fault is obtained in the retaining ring assembly 40 engaging the mounting groove 52.

[0083] Specifically, after the retaining ring assembly 40 and pin unit 53 have moved a preset stroke, if the actual stroke of the detection unit 321 is not within the standard stroke range, and / or the inner peripheral wall of the detection unit 321 does not abut against or gap from the outer peripheral wall of the retaining ring assembly 40, then the retaining ring assembly 40 is determined to have a fault in engaging the mounting groove 52. This solution's retaining ring installation method supplements the normal engagement criterion with a fault criterion. This method can promptly identify engagement faults when the stroke or contact state is abnormal, facilitating shutdown or alarm handling and preventing unqualified installations from flowing into the next process.

[0084] Example 2:

[0085] In this embodiment, a retaining ring mounting system is provided; please refer to [reference needed]. Figure 2 Specifically, it includes:

[0086] The body assembly 10 includes a base unit 11 and a drive unit 12 disposed on the base unit 11. The base unit 11 includes a base body portion 111, a first fixing portion 112, a second fixing portion 113, a fixing groove 114, and a third fixing portion 115. The base body portion 111 constitutes the main body of the base unit 11. The first fixing portion 112 and the second fixing portion 113 are disposed on the base body portion 111 to fix the shaft unit 51, preventing it from shifting during the installation of the retaining ring assembly 40 and affecting the installation effect. The third fixing portion 115 is disposed on the bottom of the base body portion 111. The fixing groove 114 is disposed on the third fixing portion 115 near the pressing unit 31 to accommodate or position the shaft unit 51. The first mounting space 54 and the second mounting space 55 are respectively disposed in different areas of the pin unit 53. Thus, the base unit 11 achieves stable installation and positioning of the drive unit 12 and the pressing assembly 30 through multiple fixing portions and fixing grooves 114.

[0087] The pressing assembly 30 includes a pressing unit 31 and a detection unit 32 that are driven and connected to the driving unit 12; the inner peripheral wall of the detection unit 32 is movably connected to the outer peripheral wall of the pressing unit 31 and the detection unit 32 is elastically connected to the pressing unit 31 along the pressing direction; wherein, the pressing unit 31 is hollow inside; the driving connection refers to the relationship in which the driving unit 12 transmits power to the pressing assembly 30 to make it move along the pressing direction, including direct driving or indirect driving through a transmission component.

[0088] For details, please refer to Figure 9 The drive unit 12 includes a first drive unit 121 and a second drive unit 122. The first drive unit 121 is disposed above the base unit 11 and is used to provide driving force to the pressing assembly 30. The second drive unit 122 is disposed on the base body 111 and connected to the first fixing part 112, and is used to drive the first fixing part 112 and the second fixing part 113 to fix the shaft unit 51. The drive unit 12 can be a linear drive unit 12 in which a motor drives the pressing assembly 30 to move linearly via a lead screw and nut pair; or it can be a drive unit 12 in which a cylinder or hydraulic cylinder drives the pressing assembly 30 to move linearly reciprocally; or it can be a drive unit 12 in which a linear motor directly drives the pressing assembly 30. The specific form of the drive unit 12 is not limited to these, and any unit that can output driving force along the pressing direction is applicable.

[0089] The guide assembly 20 is detachably located inside the pressing unit 31. In practical applications, the guide assembly 20 can be a component with an inner hole guiding function, such as a guide sleeve, guide post, or linear bearing; or it can be a sleeve with a guide step, the outside of which forms a channel for the retaining ring assembly 40 to align with the shaft unit 51.

[0090] The retaining ring assembly 40 can be fitted onto the guide assembly 20. In the preset state of the retaining ring installation system, the drive unit 12 drives the pressing unit 31 and at least part of the detection unit 32 to abut against the end face of the retaining ring assembly 40 along the pressing direction and provides a force for the retaining ring assembly 40 to move along the pressing direction. The preset state refers to the working state of the retaining ring installation system before the pressing is started, when all components are in place and ready to operate.

[0091] Furthermore, the detection unit 32 includes a detection section 321, an elastic section 323, and multiple clearance areas 322. The detection section 321 includes a first detection body 3211 and a second detection body 3212. The first detection body 3211 and the second detection body 3212 are connected sequentially along the pressing direction. The side of the first detection body 3211 away from the second detection body 3212 is connected to the pressing unit 31 through the elastic section 323. The multiple clearance areas 322 are circumferentially spaced on the second detection body 3212. In a preset state, based on the movement of the detection section 321 along the pressing direction, the elastic section 323 undergoes elastic deformation. The detection section 321 obtains a recoverable elastic displacement through the elastic section 323, and the clearance areas 322 enable the detection unit 32 to form a clearance space in the circumferential direction. The detection unit 32 provides pressing force while also having displacement detection capability, which is compatible with the detection and judgment of the aforementioned method.

[0092] In other embodiments, the shaft assembly 50 includes a shaft unit 51, a mounting groove 52, a pin unit 53, a first mounting space 54, and a second mounting space 55. The shaft unit 51 constitutes the main body of the shaft assembly 50 and is disposed in the fixing groove 114 of the third fixing part 115. The mounting groove 52 is disposed on the shaft unit 51 near the pressing unit 31 and is used to engage with the retaining ring assembly 40. The pin unit 53 is disposed on the shaft unit 51 near the pressing unit 31 and is connected to the mounting groove 52. It is used to provide guidance and support for the retaining ring assembly 40 before it is pressed into the mounting groove 52. The first mounting space 54 and the second mounting space 55 are both disposed on the pin unit 53.

[0093] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made in form and detail without departing from the scope of the present invention.

Claims

1. A method for installing a retaining ring, characterized in that, include: Based on the guide assembly with the pre-installed retaining ring assembly abutting against the end face of the shaft unit, the driving pressing assembly moves along the pressing direction; Based on the movement of the pressing assembly along the pressing direction, the pressing unit and at least part of the detection unit abut against the end face of the retaining ring assembly along the pressing direction and provide a force for the retaining ring assembly to move along the pressing direction; wherein, the pressing assembly includes the pressing unit and the detection unit; the inner peripheral wall of the detection unit is movably connected to the outer peripheral wall of the pressing unit and the detection unit is elastically connected to the pressing unit along the pressing direction; the guide assembly is detachably located inside the pressing unit.

2. The method for installing a retaining ring according to claim 1, characterized in that, Also includes: The pressing unit and at least part of the detection unit provide a force to move the retaining ring assembly along the pressing direction, driving the retaining ring assembly to move along the pressing direction on the guide assembly until it abuts against the end face of the pin unit; wherein, the pin unit is sleeved on one end of the shaft unit facing the pressing assembly; Based on the contact between the end face of the retaining ring assembly and the pin unit, the retaining ring assembly and the pin unit are driven to move a preset distance along the pressing direction; Based on the movement of the retaining ring assembly and the pin unit along the preset stroke, the retaining ring assembly is detected to be engaged in the mounting groove; wherein, the outer peripheral wall of the shaft unit is provided with the mounting groove.

3. The method for installing a retaining ring according to claim 2, characterized in that, The step of moving the preset stroke based on the retaining ring assembly and the pin unit, and detecting that the retaining ring assembly is engaged in the mounting groove, includes: Based on the movement of the retaining ring assembly and the pin unit, the preset stroke is moved to obtain the actual movement stroke of the detection unit and the contact state between the inner peripheral wall of the detection unit and the outer peripheral wall of the retaining ring assembly is obtained. Based on the fact that the actual travel of the detection part after the elastic deformation of the elastic part is within the standard travel range, and that the inner peripheral wall of the detection part abuts or is spaced from the outer peripheral wall of the retaining ring assembly, the retaining ring assembly is engaged in the mounting groove; wherein, the detection unit includes a detection part and an elastic part; the two ends of the elastic part are elastically connected to the pressing unit and the detection part respectively, and can be elastically compressed when the detection part moves along the pressing direction.

4. The method for installing a retaining ring according to claim 2, characterized in that, Based on the movement of the pressing assembly along the pressing direction, the pressing unit and at least part of the detection unit abut against the end face of the retaining ring assembly along the pressing direction and provide a force for the retaining ring assembly to move along the pressing direction, including: Based on the movement of the pressing assembly along the pressing direction, the pressing main body and a plurality of pressing protrusions abut against the first preset position of the retaining ring assembly; wherein, the pressing unit includes the pressing main body and a plurality of pressing protrusions spaced apart on the pressing main body; the plurality of pressing protrusions extend radially away from the pressing main body from the pressing main body; Based on the synchronous movement of at least a portion of the detection unit and the pressing assembly along the pressing direction, the second detection body abuts against the second preset position of the retaining ring assembly; wherein, the detection unit further includes a first detection body and a second detection body; the first detection body and the second detection body are sequentially connected along the pressing direction; Based on the contact between the pressing main body and the plurality of pressing protrusions and the first preset position, and the synchronous contact between the second detection body and the second preset position of the retaining ring assembly, the pressing unit and the second detection body provide the force for the retaining ring assembly to move along the pressing direction.

5. The method for installing a retaining ring according to claim 4, characterized in that, Also includes: Based on the second detection body abutting against the second preset position of the retaining ring assembly, multiple pressing protrusions are located within the first installation space, the avoidance area of ​​the second detection body avoids the first installation space, and the second detection body is located within the second installation space; wherein, the detection unit further includes multiple avoidance areas; the avoidance areas are located between adjacent pressing protrusions and are disposed on the second detection body.

6. The method for installing a retaining ring according to claim 5, characterized in that, The first installation space is a circumferential accommodating space for the rolling elements and the shaft unit, which are radially spaced apart; the second installation space is a circumferential accommodating space for the shaft unit to avoid the rolling elements; the pin unit includes a pin body, a pin connector, and a plurality of rolling elements; the pin body is sleeved on one end of the shaft unit; The plurality of pin connectors are spaced apart on the pin body and extend radially away from the pin body; the rolling element is movably connected to the side of the pin connector away from the pin body.

7. The method for installing a retaining ring according to claim 5, characterized in that, The first preset position includes a first pressing surface of the retaining ring assembly along the radial direction and at least a portion of a second pressing surface along the radial direction within the first mounting space; wherein, the retaining ring assembly includes a first pressing surface and a second pressing surface arranged sequentially along the radial direction; the first pressing surface and the second pressing surface have the same radial dimension; The second preset position includes at least a portion of the second pressing surface within the second installation space.

8. A method for installing a retaining ring according to claim 3, characterized in that, The step of moving the preset stroke based on the retaining ring assembly and the pin unit, and detecting that the retaining ring assembly is engaged in the mounting groove, further includes: Based on the fact that the travel distance is not within the standard travel range and / or the inner peripheral wall of the detection part does not abut against or gap from the outer peripheral wall of the retaining ring assembly, a fault is found in the retaining ring assembly engaging with the mounting groove.

9. A retaining ring mounting system, characterized in that, A retaining ring installation system, applicable to any one of claims 1-8, comprises: The body assembly includes a base unit and a drive unit disposed on the base unit; A pressing assembly includes a pressing unit and a detection unit that are driven and connected to the driving unit; the inner peripheral wall of the detection unit is movably connected to the outer peripheral wall of the pressing unit and the detection unit is elastically connected to the pressing unit along the pressing direction; wherein the pressing unit is hollow inside; A guide assembly is detachably located within the pressing unit; A retaining ring assembly can be fitted onto the guide assembly; in the preset state of the retaining ring installation system, the driving unit drives the pressing unit and at least part of the detection unit to abut against the end face of the retaining ring assembly along the pressing direction and provides a force for the retaining ring assembly to move along the pressing direction.

10. A retaining ring mounting system according to claim 9, characterized in that, The detection unit includes a detection section, an elastic section, and multiple clearance areas; the detection section includes a first detection body and a second detection body; the first detection body and the second detection body are connected sequentially along the pressing direction; the side of the first detection body away from the second detection body is connected to the pressing unit through the elastic section; the multiple clearance areas are circumferentially spaced on the second detection body; wherein, in the preset state, based on the movement of the detection section along the pressing direction, the elastic section undergoes elastic deformation.

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