Auxiliary assembly tool for filter of cold motor

Abstract

The invention relates to a cold motor filter assembly assistive device which comprises a positioning assistive device, the positioning assistive device comprises a handle and an assistive device body, and the end face of the assistive device body is arranged to be tightly attached to the end face of an inner hole of an oil pump so as to block a through notch in the oil pump installation position, so that the oil pump installation hole is a complete inner round hole. The end face of the auxiliary tool body is tightly attached to the end face of the oil pump inner hole to block the through notch, so that the oil pump mounting hole forms a complete inner circular hole. By eliminating a sharp structure at the edge of the mounting hole, the O-shaped rubber sealing ring is prevented from being in contact with the edge of the hole in the assembling process, so that the sealing ring is always in a smooth circular path when passing through, the surface integrity of the sealing ring is effectively maintained, and the service life of the sealing ring is prolonged. Scratch damage and potential displacement risks caused by sharp edges are prevented, and then the continuous reliability of the sealing performance of the filter is guaranteed.

Description

Technical Field

[0001] This application relates to the field of drive motors, and in particular to a cold motor filter assembly fixture. Background Technology

[0002] In the assembly process of filters for oil-cooled motors, existing technology has a significant structural defect: a through-hole (a notch at the edge of the mounting hole) is present in the oil pump mounting location. This through-hole becomes the direct contact point for the O-ring rubber seal during filter assembly, causing the seal to be scraped by the sharp edges as it passes through the through-hole. This easily damages the seal surface or causes it to detach from the filter sealing groove. This scraping and displacement directly impairs the filter's sealing performance, leading to seal failure and affecting the filter's normal filtration effect, ultimately reducing the long-term operational reliability of the oil-cooled motor. Current assembly processes do not take any protective measures against the through-hole structure, resulting in seal damage becoming a common defect in the assembly process. Existing operations can only rely on slow, manual installation to mitigate the risk, but cannot fundamentally eliminate the risk of the through-hole scraping the seal. Summary of the Invention

[0003] This application provides a cooling motor filter assembly tool that can solve the problem of O-ring rubber seals being scraped and displaced due to the through-hole of the oil pump installation position in related technologies.

[0004] This application provides an assembly tool for a refrigerant filter, comprising a positioning tool, which includes a handle and a tool body. The end face of the tool body is configured to press against the end face of the inner hole of an oil pump to seal the through gap at the oil pump mounting position, making the oil pump mounting hole a complete inner circular hole. By pressing the end face of the tool body against the end face of the inner hole of the oil pump to seal the through gap, the oil pump mounting hole is formed into a complete inner circular hole. This design eliminates the sharp structure of the mounting hole edge, preventing the O-ring rubber seal from contacting the hole edge during assembly, thereby ensuring that the seal always stays in a smooth circular path when passing through, effectively maintaining the integrity of the seal surface, preventing scratch damage and potential displacement risks caused by sharp edges, and thus ensuring the continuous reliability of the filter's sealing performance.

[0005] In one embodiment, the auxiliary tool body includes a positioning platform, on which an auxiliary tool positioning surface is provided. The positioning surface is used to fit against the inner end face of the oil pump mounting hole. A through-hole sealing platform is provided on the positioning surface. The through-hole sealing platform is used to be inserted into the through-hole at the oil pump mounting hole so that the oil pump mounting hole forms a complete inner circular hole.

[0006] In one embodiment, the end face of the assistive device body has a tapered structure.

[0007] In one embodiment, a fastening adjustment element is provided between the handle and the auxiliary body.

[0008] In one embodiment, the fastening adjustment component includes: an adjustment groove, an adjustment rod, a top support, and a top rod. The adjustment groove is formed inside the auxiliary body. The adjustment rod is movably connected to the middle of the handle, and its direction of movement is the same as the length extension direction of the handle. The top support is disposed inside the adjustment groove and connected to the adjustment rod. The top rod passes through the auxiliary body and is movably connected inside the auxiliary body. One end of the top rod is in contact with the top support, and the top rod moves radially along the auxiliary body.

[0009] In one embodiment, the push rod is slidably connected inside the auxiliary body; There are two push rods, which are symmetrically arranged with respect to the central axis of the auxiliary body, and a spring connects the two adjacent push rods.

[0010] In one embodiment, the adjusting rod is slidably connected to the middle of the handle.

[0011] In one embodiment, a threaded groove is provided in the middle of the handle, and the adjusting rod is threadedly connected to the threaded groove.

[0012] In one embodiment, the end face of the assistive device body is provided with an annular sealing gasket.

[0013] In one embodiment, the surface of the handle is provided with a non-slip textured surface.

[0014] The beneficial effects of the technical solutions provided in this application include: This application provides an assembly fixture for a chilled motor filter. The fixture's main body end face is pressed tightly against the inner end face of the oil pump's bore to seal the through-hole, thus forming a complete inner circular hole for the oil pump mounting hole. This design eliminates the sharp structure at the edge of the mounting hole, preventing the O-ring rubber seal from contacting the hole edge during assembly. This ensures the seal remains on a smooth circular path during passage, effectively maintaining the integrity of the seal surface and preventing scratch damage and potential displacement risks caused by sharp edges, thereby guaranteeing the continuous reliability of the filter's sealing performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 The assembly position of the filter within the housing provided in the embodiments of this application; Figure 2 A schematic diagram of the through-gap provided in an embodiment of this application; Figure 3 This is a schematic diagram of the first positioning aid provided in the embodiments of this application; Figure 4 This is a schematic diagram of the first positioning aid provided in the embodiments of this application; Figure 5 This is a schematic diagram of a second positioning aid provided in an embodiment of this application.

[0017] In the diagram: 1. Filter assembly position; 2. Through notch; 3. Positioning fixture; 30. Positioning platform; 31. Fixture positioning surface; 32. Through notch sealing platform; 33. Adjustment groove; 34. Top rod; 35. Spring; 36. Top support; 37. Adjustment rod; 38. Handle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] In the assembly process of filters for oil-cooled motors, existing technology has a significant structural defect: a through-hole (a notch at the edge of the mounting hole) is present in the oil pump mounting location. This through-hole becomes the direct contact point for the O-ring rubber seal during filter assembly, causing the seal to be scraped by the sharp edges as it passes through the through-hole. This easily damages the seal surface or causes it to detach from the filter sealing groove. This scraping and displacement directly impairs the filter's sealing performance, leading to seal failure and affecting the filter's normal filtration effect, ultimately reducing the long-term operational reliability of the oil-cooled motor. Current assembly processes do not take any protective measures against the through-hole structure, resulting in seal damage becoming a common defect in the assembly process. Existing operations can only rely on slow, manual installation to mitigate the risk, but cannot fundamentally eliminate the risk of the through-hole scraping the seal.

[0020] This application provides a cooling motor filter assembly tool that can solve the problem of O-ring rubber seals being scraped and displaced due to the through-hole of the oil pump installation position in related technologies.

[0021] See Figures 1 to 5This application provides a cold motor filter assembly tool, which includes: a positioning tool 3, the positioning tool 3 including a handle 38 and a tool body, the end face of the tool body is configured to fit tightly against the end face of the inner hole of the oil pump to block the through gap 2 of the oil pump installation position, so that the oil pump installation hole is a complete inner circular hole.

[0022] See Figure 1 As shown, the filter assembly position 1 and the through notch 2 are illustrated. In this application, the through notch 2 is sealed by pressing the end face of the auxiliary fixture body against the end face of the oil pump's inner hole, thus forming a complete inner circular hole for the oil pump mounting hole. This design eliminates the sharp structure at the edge of the mounting hole, preventing the O-ring rubber seal from contacting the hole edge during assembly. This ensures that the seal always remains in a smooth circular path during passage, effectively maintaining the integrity of the seal surface and preventing scratch damage and potential displacement risks caused by sharp edges, thereby ensuring the continuous reliability of the filter's sealing performance.

[0023] Based on the above embodiments, in this embodiment, the auxiliary tool body includes a positioning platform 30, and an auxiliary tool positioning surface 31 is provided on the positioning platform 30. The auxiliary tool positioning surface 31 is used to fit with the inner end face of the oil pump mounting hole. A through-hole sealing platform 32 is provided on the auxiliary tool positioning surface 31. The through-hole sealing platform 32 is used to be inserted into the through-hole 2 at the oil pump mounting hole so that the oil pump mounting hole forms a complete inner circular hole.

[0024] In this embodiment, the main body of the auxiliary fixture is further refined into two key components: a positioning platform 30 and a through-hole sealing platform 32. The main body of the auxiliary fixture is composed of the positioning platform 30, the upper surface of which is provided with an auxiliary fixture positioning surface 31. This positioning surface 31 is specially designed as a planar structure that fits against the inner end face of the oil pump mounting hole. At the center of the positioning surface 31, a through-hole sealing platform 32 is provided. The shape of the through-hole sealing platform 32 matches the through-hole notch 2 at the oil pump mounting hole, and it can be precisely inserted into the through-hole notch 2 to achieve complete sealing of the through-hole.

[0025] It is worth noting that, furthermore, the end face of the auxiliary fixture body has a tapered structure. The end face of the auxiliary fixture body is not a simple planar structure, but rather a tapered design that matches the tapered edge of the oil pump mounting hole. This design allows the auxiliary fixture body to naturally guide and gradually conform to the inner end face of the oil pump when inserted into the oil pump mounting hole, avoiding the insertion resistance and scratching damage to the oil pump mounting hole that might be caused by a planar structure. The tapered end face design also enhances the self-alignment capability of the auxiliary fixture body and the oil pump mounting hole, ensuring precise positioning of the sealing structure and improving assembly efficiency and reliability.

[0026] The dimensions and shape of the auxiliary positioning surface 31 are precisely calculated to ensure that the contact area between it and the inner end face of the oil pump mounting hole is maximized, so that the auxiliary body can naturally fit into the mounting hole when inserted. Through the tight fit between the positioning surface and the inner end face, the through gap 2 is completely sealed.

[0027] The structural design of the through-hole sealing platform 32 is one of the core aspects of this application. The through-hole sealing platform 32 adopts a boss structure that perfectly matches the shape of the through-hole 2. Its height, width, and shape are all customized according to the characteristics of the actual oil pump mounting hole's through-hole 2. The surface of the through-hole sealing platform 32 is smoothed to ensure that there is no risk of scratching the O-ring during insertion. More importantly, the dimensional design of the through-hole sealing platform 32 ensures that when it is inserted into the through-hole 2, the overall outline of the oil pump mounting hole returns to a complete circle, eliminating the original sharp edges and providing a smooth path for the O-ring to pass smoothly.

[0028] In addition, a positioning mark structure is added to the end face of the handle 38. This positioning mark structure is located on the edge of the handle 38 and adopts a concave-convex dot matrix design. When the main body of the auxiliary tool is fully inserted into the oil pump mounting hole and close to the inner end face of the hole, the positioning mark structure corresponds to the edge of the oil pump mounting hole, providing the operator with a visual indication of proper assembly and avoiding incomplete sealing problems caused by insufficient insertion depth.

[0029] Based on the above embodiments, in order to improve the convenience and reliability of assembly operations, in this embodiment, a fastening adjustment component is provided between the handle 38 and the auxiliary body. The fastening adjustment component can be used to fix the positioning auxiliary 3 inside the oil pump mounting hole, avoiding the need for continuous manual holding.

[0030] Furthermore, the fastening adjustment component includes: an adjustment groove 33, an adjustment rod 37, a support member 36, and a push rod 34. The adjustment groove 33 is formed inside the main body of the auxiliary tool. The adjustment rod 37 is movably connected to the middle of the handle 38, and the direction of movement is the same as the length extension direction of the handle 38. The support member 36 is disposed inside the adjustment groove 33 and connected to the adjustment rod 37, serving as a transmission component between the adjustment rod 37 and the push rod 34. The push rod 34 penetrates through the main body of the auxiliary tool, i.e., the positioning platform 30, and is movably connected inside the positioning platform 30 in the main body of the auxiliary tool. One end of the push rod 34 is in contact with the support member 36, and the push rod 34 moves radially along the positioning platform 30 in the main body of the auxiliary tool.

[0031] In some possible embodiments, the adjusting rod 37 is slidably connected to the middle of the handle 38, meaning the adjusting rod 37 can slide along the axial direction of the handle 38. Based on the fastening of the adjusting component, this embodiment further adds a quick-release mechanism. This quick-release mechanism includes a release button located on the side of the handle 38 and an unlocking slider linked to the push rod 34. When the operator presses the release button, the unlocking slider pushes the push rod 34 back, causing the auxiliary fixture body to quickly disengage from the oil pump mounting hole, significantly shortening the assembly cycle. The quick-release mechanism is particularly suitable for assembly line scenarios requiring frequent fixture changes, improving overall operational efficiency.

[0032] In some other possible embodiments, the handle 38 has a threaded groove in the middle, and the adjusting rod 37 is threadedly connected to the threaded groove. The axial position of the adjusting rod 37 can be precisely adjusted by rotating it.

[0033] Furthermore, the push rod 34 is slidably connected inside the main body of the assistive device; there are two push rods 34, which are symmetrically arranged with respect to the central axis of the positioning platform 30 in the main body of the assistive device, and a spring 35 connects adjacent two push rods 34. The spring 35 provides appropriate rebound force to ensure that the push rod 34 remains in a natural state when no external force is applied.

[0034] After the operator inserts the auxiliary fixture body into the oil pump mounting hole, they rotate the adjusting rod 37 on the handle 38. The adjusting rod 37 moves inward along the threaded groove, pushing the top support 36 into the auxiliary fixture body. The movement of the top support 36 causes the top rod 34 to expand radially outward. The outer end of the top rod 34 contacts the inner wall of the oil pump mounting hole and generates friction, thereby firmly fixing the positioning auxiliary fixture 3 inside the oil pump mounting hole. At this time, the top rod 34 maintains an appropriate clamping force under the action of the spring 35, which ensures the stability of the auxiliary fixture and avoids damage to the inner wall of the oil pump due to excessive clamping.

[0035] The design of this fastening adjustment component enables automatic fixing of the auxiliary tool, eliminating the need for operators to continuously hold the tool during assembly, thus significantly improving assembly efficiency and operational comfort. Simultaneously, the threaded connection design of the adjusting rod 37 allows for precise control of the clamping force, adapting to the dimensional differences of various oil pump mounting holes and enhancing the versatility of the auxiliary tool.

[0036] Based on the above embodiments, to improve the user experience and assembly accuracy of the auxiliary tool, an annular sealing gasket is provided on the end face of the auxiliary tool body in this embodiment. An annular sealing gasket is specifically provided on the end face of the auxiliary tool body, i.e., the positioning platform 30. This sealing gasket is made of a highly elastic, oil-resistant, and heat-resistant material, such as silicone rubber or fluororubber. The inner diameter of the annular sealing gasket matches the outer diameter of the positioning platform 30 in the auxiliary tool body, and the outer diameter is slightly larger than the end face diameter of the positioning platform 30 in the auxiliary tool body. When the auxiliary tool body is inserted into the oil pump mounting hole and fits tightly against the end face of the oil pump's inner hole, the annular sealing gasket is compressed and deformed, forming an effective sealing barrier to prevent oil or impurities from seeping into the gap between the auxiliary tool and the oil pump's inner hole during assembly, ensuring the cleanliness of the assembly environment and the sealing effect. The annular sealing gasket further enhances the tightness of the fit between the auxiliary tool and the end face of the oil pump mounting hole, improving the reliability of the sealing structure. Even in the case of slight deformation of the oil pump mounting hole, the annular sealing gasket can adapt to this deformation through its own elastic deformation, maintaining the sealing effect and avoiding the risk of sealing failure due to fitting gaps.

[0037] In addition, this embodiment adds a dust cover structure to the outer edge of the annular sealing gasket. The dust cover is made of lightweight elastic material and covers the outer periphery of the annular sealing gasket. When the accessory is not in use, the dust cover closes to effectively prevent dust and particles from adhering to the surface of the sealing gasket, ensuring the cleanliness and sealing performance of the sealing gasket each time it is used.

[0038] Based on the above embodiments, in this embodiment, the surface of the handle 38 is provided with an anti-slip texture. The anti-slip texture adopts an ergonomic wave-shaped or diamond-shaped raised structure. This texture design greatly increases the contact area and friction between the handle 38 and the operator's palm, providing a stable grip even when the hands are wet or oily, and preventing the handle 38 from slipping during operation.

[0039] In addition, the handle 38 is made of engineering plastics, such as nylon or polycarbonate, and has a special surface treatment to further enhance its anti-slip properties, making it easier for operators to perform precise operations in confined spaces.

[0040] Furthermore, a connection interface structure is added to the end of the handle 38. This interface structure is a standard quick-connect design, which can be connected to electric assembly tools or robotic arms to achieve seamless integration in automated assembly scenarios. The connection interface has internal positioning pins to ensure precise alignment with the electric tool and prevent misalignment during assembly. This design makes the assistive device suitable not only for manual assembly but also compatible with automated assembly systems on modern production lines, expanding its application scenarios.

[0041] In summary, this application eliminates the sharp edges of the through-hole through structural design, making the oil pump mounting hole a complete inner circle. Specifically, the tapered end face design of the auxiliary body matches the tapered edge of the oil pump's inner hole, achieving natural guidance and self-centering of the auxiliary body during insertion. When the auxiliary body is fully inserted into the oil pump mounting hole, the auxiliary positioning surface 31 fits tightly against the end face of the oil pump mounting hole, and the through-hole sealing platform 32 is precisely inserted into the through-hole notch 2, restoring the inner wall contour of the oil pump mounting hole to a complete circle.

[0042] The fundamental change brought about by this structural design is that the O-ring rubber seal no longer comes into contact with any sharp edges when passing through the mounting hole, but remains within a smooth circular path. This smooth path ensures the integrity of the seal surface, preventing damage and potential displacement risks caused by scratching, thereby guaranteeing the continuous reliability of the filter's sealing performance. Compared to traditional assembly methods, this application fundamentally eliminates the risk of seal scratching through a change in physical structure, rather than relying solely on operational skills to mitigate the risk.

[0043] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A cooling motor filter assembly fixture, characterized in that, It includes: The positioning aid (3) includes a handle (38) and an aid body. The end face of the aid body is configured to fit tightly against the end face of the inner hole of the oil pump to block the through gap (2) at the oil pump installation position, so that the oil pump installation hole is a complete inner circular hole.

2. The refrigerated motor filter assembly fixture as described in claim 1, characterized in that: The auxiliary tool body includes a positioning platform (30), on which an auxiliary tool positioning surface (31) is provided. The auxiliary tool positioning surface (31) is used to fit against the inner end face of the oil pump mounting hole. A through-hole sealing platform (32) is provided on the auxiliary tool positioning surface (31). The through-hole sealing platform (32) is used to be inserted into the through-hole (2) at the oil pump mounting hole so that the oil pump mounting hole forms a complete inner circular hole.

3. The refrigerated motor filter assembly fixture as described in claim 2, characterized in that: The end face of the main body of the assistive device has a conical structure.

4. The refrigerated motor filter assembly fixture as described in claim 1, characterized in that: A fastening adjustment element is provided between the handle (38) and the auxiliary body.

5. The refrigerated motor filter assembly fixture as described in claim 4, characterized in that, The fastening adjustment component includes: Adjustment groove (33), the adjustment groove (33) is formed inside the body of the assistive device; Adjusting rod (37), which is movably connected to the middle of handle (38), and the direction of movement is the same as the direction of extension of the length of handle (38); A top support (36) is disposed inside the adjustment groove (33) and connected to the adjustment rod (37); The top rod (34) penetrates the main body of the auxiliary tool and is movably connected inside the main body of the auxiliary tool. One end of the top rod (34) is in contact with the top support (36), and the top rod (34) moves radially along the main body of the auxiliary tool.

6. The refrigerated motor filter assembly fixture as described in claim 5, characterized in that: The top rod (34) is slidably connected inside the body of the assistive device; There are two top rods (34), which are symmetrically arranged with respect to the central axis of the auxiliary body, and a spring (35) connects the two adjacent top rods (34).

7. The refrigerated motor filter assembly fixture as described in claim 5, characterized in that: The adjusting rod (37) is slidably connected to the middle of the handle (38).

8. The refrigerated motor filter assembly fixture as described in claim 5, characterized in that: The handle (38) has a threaded groove in the middle, and the adjusting rod (37) is threadedly connected to the threaded groove.

9. The refrigerated motor filter assembly fixture as described in claim 1, characterized in that: The end face of the assistive device body is provided with an annular sealing gasket.

10. The refrigerated motor filter assembly fixture as described in claim 1, characterized in that: The surface of the handle (38) is provided with anti-slip textured surface.

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