Oil seal press-in tool convenient to position

Abstract

The utility model discloses an oil seal press-in tool convenient to position, and relates to the technical field of oil seal press-in tools, the oil seal press-in tool convenient to position comprises a fixing ring, a guide ring and a crankshaft connecting end, the fixing ring is movably sleeved with the guide ring, two connecting holes are formed in the surface of the guide ring in a penetrating mode, and the crankshaft connecting end is connected with the crankshaft connecting end. After the oil seal ring is completely extruded to the installation step of the connecting end of the crankshaft, whether the installation position of the oil seal ring is accurate or not and whether the oil seal ring is tightly attached to the connecting end of the crankshaft or not are checked, and therefore the whole press-in work is completed. The oil seal ring and the crankshaft connecting end are accurately aligned, it can be guaranteed that the oil seal ring is accurately installed on the installation step of the crankshaft connecting end no matter in the axial direction or the radial direction, and the problem of installation position deviation possibly occurring in a traditional installation method is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oil seal pressing tooling, in particular to an oil seal pressing tooling which is easy to position. Background Art

[0002] Oil seal press-fitting tooling plays a key role in the installation of oil seals in mechanical equipment. Oil seals are of great significance in ensuring the sealing of rotating components and are widely used in many fields, including automotive engines, engineering machinery, and aerospace equipment. Their main function is to prevent the leakage of working media such as lubricating oil and hydraulic oil, while also preventing external dust, moisture, and impurities from entering the equipment, thereby maintaining a good working environment inside the equipment and ensuring stable and efficient operation of the equipment. The oil seal installation process involves the following related technologies and existing practices:

[0003] 1. Traditional manual installation: The operator uses a rubber hammer and a screwdriver to hammer the oil seal into place and use a screwdriver to assist in adjustment. However, this method relies on experience, the knocking force is difficult to control, and it is easy to deform the oil seal, affecting the sealing performance. It is also difficult to ensure coaxiality and has poor accuracy.

[0004] 2. General press-fitting equipment to assist installation: Some companies use hydraulic or pneumatic press-fitting equipment. Although they can press-fit according to parameters, they lack fine design of the oil seal and have no positioning structure. The inner and outer diameters are not accurately positioned, which can easily cause the oil seal to deflect. In addition, different oil seals require frequent replacement and adjustment of the fixture, which increases cost and time.

[0005] 3. Simple tooling for installation: Some manufacturers make simple tooling with a positioning plate and a pressure head. The oil seal is placed in the positioning plate hole, and the pressure head is connected to a manual press for press installation. However, the tooling positioning accuracy is low and the hole tolerance is large, which cannot guarantee the position of the oil seal. It cannot be effectively guided during press installation, and the oil seal is easily damaged.

[0006] Currently, manufacturers use a variety of methods and equipment to complete the installation of oil seals, but many problems still exist. Regarding the accuracy of oil seal installation, existing installation methods struggle to precisely ensure the correct position and orientation of the oil seal at the installation site. Whether it's coaxiality issues caused by manual installation or insufficient positioning accuracy in general press-fit equipment and simple tooling, these issues can lead to potential oil seal failure during equipment operation. Lubricant leakage can cause equipment overheating and increased wear, while impurities can disrupt the proper operation of internal components.

[0007] However, the above-mentioned implementation still has the following problems: in terms of the convenience of oil seal ring installation, both traditional methods and existing tooling require operators to expend considerable effort and time to complete the installation. Manual installation is inefficient and has unstable quality. The adjustment process of general press-fitting equipment and simple tooling is complicated, which is not conducive to improving production efficiency. This application addresses these issues and proposes a new oil seal press-fitting tooling that allows for convenient and accurate installation of the oil seal ring, effectively ensuring that the oil seal ring is well positioned and smoothly pressed in during the installation process, greatly improving the quality and efficiency of oil seal installation, and reducing the risk of equipment failure caused by improper oil seal installation. Utility Model Content

[0008] (1) Technical problems solved

[0009] In response to the shortcomings of the existing technology, the utility model provides an oil seal pressing tool that is easy to position, which solves the problem that in terms of the convenience of oil seal ring installation, both traditional methods and existing tooling require operators to spend a lot of energy and time to complete the installation, manual installation is inefficient and the quality is unstable, and the adjustment process of general pressing equipment and simple tooling is complicated, which is not conducive to improving production efficiency.

[0010] (2) Technical solution

[0011] To achieve the above purpose, the utility model is implemented through the following technical solutions: an oil seal press-in tooling that is easy to position, including a fixed ring, a guide ring and a crankshaft connecting end, the fixed ring and the guide ring are movably connected, two connecting holes are provided through the surface of the guide ring, and screws are movably connected in the two connecting holes, an oil seal ring is movably connected to the annular side of the guide ring, a connecting plate is provided on the right side of the fixed ring, a threaded hole two is provided through the right surface of the connecting plate, a bolt is threadedly connected in the threaded hole two, and the two screws are threadedly connected to the crankshaft connecting end.

[0012] As a preferred technical solution of the present invention, two threaded holes 1 are provided on the right surface of the connecting plate and the fixing ring, and two pairs of threaded holes 1 are internally threaded with two screws 2.

[0013] As a preferred technical solution of the present invention, a threaded hole three is provided through the left surface of the guide ring, and a guide surface is provided on the annular side surface of the guide ring.

[0014] As a preferred technical solution of the present invention, an extrusion ring is fixedly connected to the upper surface of the fixing ring, and a mounting step is provided on the annular side surface of the crankshaft connecting end.

[0015] As a preferred technical solution of the present invention, the threaded hole three is threadedly sleeved with the bolt.

[0016] (3) Beneficial effects

[0017] 1. This tooling achieves precise alignment between the oil seal ring and the crankshaft connection end through the design of the guide ring. Whether in the axial or radial direction, it can ensure that the oil seal ring is accurately installed on the mounting step of the crankshaft connection end, avoiding the installation position deviation problem that may occur in traditional installation methods. This high-precision installation is crucial to the sealing performance of the oil seal and can ensure that the oil seal is always in the best sealing state during operation.

[0018] 2. Align the oil seal ring with the guide ring and slowly insert the inner hole of the oil seal ring along the guide ring. The operation should be gentle and steady. The oil seal ring can be rotated appropriately to help it fit smoothly. A small amount of lubricating oil can be applied to the contact surface of the oil seal ring and the guide ring to reduce friction and facilitate fitting. The design of the tooling makes the installation process of the oil seal ring more standardized and convenient, especially in mass production. This efficient installation method can significantly shorten the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 This is the overall structural diagram of the utility model;

[0021] Figure 2 This is a structural diagram of the fixed ring in the utility model;

[0022] Figure 3 This is a structural diagram of the crankshaft connection end in the present utility model;

[0023] Figure 4 This is a structural diagram of the guide ring in this utility model.

[0024] Legend: 1. Retaining ring; 2. Guide ring; 3. Oil seal ring; 4. Screw 1; 5. Connecting plate; 6. Extrusion ring; 7. Connecting hole; 8. Threaded hole 1; 9. Screw 2; 10. Threaded hole 2; 11. Bolt; 12. Guide surface; 14. Threaded hole 3; 15. Crankshaft connection end; 16. Installation step. DETAILED DESCRIPTION

[0025] The embodiment of the present application provides an oil seal pressing tool that is easy to position, thereby effectively solving the problem of the convenience of oil seal ring installation. Traditional methods and existing tooling require operators to spend a lot of energy and time to complete the installation, manual installation is inefficient and the quality is unstable, and the adjustment process of general pressing equipment and simple tooling is complicated, which is not conducive to improving production efficiency. The tooling can make the installation of the oil seal ring convenient and accurate, effectively ensure the good positioning and smooth pressing of the oil seal ring during the installation process, greatly improve the quality and efficiency of the oil seal installation, and reduce the risk of equipment failure caused by improper oil seal installation.

[0026] Example

[0027] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the overall idea of ​​the embodiment of this application is as follows:

[0028] In view of the problems existing in the prior art, the present invention provides an oil seal press-in tooling that is easy to position, comprising a fixing ring 1, a guide ring 2 and a crankshaft connecting end 15, wherein the fixing ring 1 is movably sleeved with the guide ring 2, and two connecting holes 7 are provided on the surface of the guide ring 2, wherein screws 4 are movably sleeved in the two connecting holes 7, and an oil seal ring 3 is movably sleeved on the annular side of the guide ring 2, and a connecting plate 5 is provided on the right side of the fixing ring 1, and a threaded hole 10 is provided on the right surface of the connecting plate 5, wherein a bolt 11 is threadedly sleeved in the threaded hole 10, and the two screws 4 are both screwed to the crankshaft. The connecting end 15 is threaded. During the installation process, first use a clean soft cloth to dip a small amount of special oil seal cleaner, gently wipe the inner hole of the oil seal ring 3 and the outer surface of the guide ring 2 to remove possible dust, oil stains and other tiny impurities, ensure that the surfaces of both are clean, align the oil seal ring 3 with the guide ring 2, and slowly insert the inner hole of the oil seal ring 3 along the guide ring 2. The operation should be gentle and smooth. The oil seal ring 3 can be rotated appropriately to help it fit smoothly, and a small amount of lubricating oil can be applied to the contact surface of the oil seal ring 3 and the guide ring 2 to reduce friction and facilitate fitting.

[0029] The connecting plate 5 and the right surface of the fixing ring 1 are both provided with two threaded holes 8, and the two pairs of threaded holes 8 are internally threaded with two screws 2 9. The left surface of the guide ring 2 is penetrated by a threaded hole 3 14, and the annular side of the guide ring 2 is provided with a guide surface 12. The guide ring 2 is fixed to the crankshaft connecting end 15 by two screws 1 4, and the two fit tightly. Align the sleeve hole of the fixing ring 1 with the guide ring 2, and slowly put the fixing ring 1 on the guide ring 2. During the sleeve connection process, ensure that the fixing ring 1 and the guide ring 2 are tightly matched without looseness or deflection. Insert the bolt 11 through the threaded hole 2 10 on the connecting plate 5. , then screw it into the corresponding threaded hole 3 14 on the guide ring 2, use a suitable torque wrench to turn the bolt 11, and gradually apply torque. When the bolt 11 rotates, it generates axial extrusion force on the fixed ring 1. During the extrusion process, closely observe the state of the oil seal ring 3, and pay attention to whether the oil seal ring 3 moves evenly toward the mounting step 16 of the crankshaft connection end 15 under the push of the fixed ring 1. When the oil seal ring 3 is completely squeezed onto the mounting step 16 of the crankshaft connection end 15, check whether the installation position of the oil seal ring 3 is accurate and whether it fits tightly with the crankshaft connection end 15 without gaps, thereby completing the overall pressing work.

[0030] An extrusion ring 6 is fixedly connected to the upper surface of the fixing ring 1, and a mounting step 16 is provided on the annular side surface of the crankshaft connecting end 15. The threaded hole 3 14 is threadedly sleeved with the bolt 11. This tooling realizes the precise alignment of the oil seal ring 3 and the crankshaft connecting end 15 through the design of the guide ring 2. Whether in the axial or radial direction, it can ensure that the oil seal ring 3 is accurately installed on the mounting step 16 of the crankshaft connecting end 15, avoiding the installation position deviation problem that may occur in the traditional installation method. This high-precision installation is crucial to the sealing performance of the oil seal, and can ensure that the oil seal is always in the best sealing state during operation. The design of the tooling makes the installation process of the oil seal ring 3 more standardized and convenient, especially in mass production. This efficient installation method can significantly shorten the production cycle.

[0031] Working principle:

[0032] During the installation process, first use a clean soft cloth to dip a small amount of special oil seal cleaner, gently wipe the inner hole of the oil seal ring 3 and the outer surface of the guide ring 2 to remove possible dust, oil stains and other tiny impurities, ensure that the surfaces of both are clean, align the oil seal ring 3 with the guide ring 2, and slowly insert the inner hole of the oil seal ring 3 along the guide ring 2. The operation should be gentle and smooth. The oil seal ring 3 can be rotated appropriately to help it fit smoothly, and a small amount of lubricating oil can be applied to the contact surface of the oil seal ring 3 and the guide ring 2 to reduce friction and facilitate fitting. , fix the guide ring 2 to the crankshaft connection end 15 through two screws 14, and the two fit tightly. Align the sleeve hole of the fixing ring 1 with the guide ring 2, and slowly put the fixing ring 1 on the guide ring 2. During the sleeve connection process, ensure that the fixing ring 1 and the guide ring 2 fit tightly without looseness or deflection. Pass the bolt 11 through the threaded hole 2 10 on the connecting plate 5, and then screw it into the corresponding threaded hole 3 14 on the guide ring 2. Use a suitable torque wrench to turn the bolt 11 and gradually apply torque. When the bolt 11 is turned, the fixing ring 1 is tightened. The fixed ring 1 generates an axial extrusion pressure. During the extrusion process, closely observe the state of the oil seal ring 3 and pay attention to whether the oil seal ring 3 moves evenly toward the mounting step 16 of the crankshaft connection end 15 under the push of the fixed ring 1. When the oil seal ring 3 is completely squeezed onto the mounting step 16 of the crankshaft connection end 15, check whether the installation position of the oil seal ring 3 is accurate and whether the fit with the crankshaft connection end 15 is tight and seamless, thereby completing the overall pressing work. This tooling achieves precise alignment of the oil seal ring 3 and the crankshaft connection end 15 through the design of the guide ring 2. Whether in the axial or radial direction, it can ensure that the oil seal ring 3 is accurately installed on the mounting step 16 of the crankshaft connection end 15, avoiding the installation position deviation problem that may occur in traditional installation methods. This high-precision installation is crucial to the sealing performance of the oil seal, and can ensure that the oil seal is always in the best sealing state during operation. The design of the tooling makes the installation process of the oil seal ring 3 more standardized and convenient, especially in mass production. This efficient installation method can significantly shorten the production cycle.

[0033] Finally, it should be noted that the above embodiments are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all embodiments here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An oil seal press-fitting tool for easy positioning, comprising a fixing ring (1), a guide ring (2) and a crankshaft connecting end (15), characterized in that: The fixing ring (1) and the guide ring (2) are movably sleeved, and two connecting holes (7) are provided through the surface of the guide ring (2), and screws (4) are movably sleeved in the two connecting holes (7); The guide ring (2) is movably sleeved on the annular side surface with an oil seal ring (3), a connecting plate (5) is provided on the right side of the fixed ring (1), a threaded hole (10) is provided through the right surface of the connecting plate (5), and a bolt (11) is sleeved on the inner thread of the threaded hole (10).

2. The oil seal press-fitting tool for facilitating positioning according to claim 1, characterized in that: The two screws (4) are both threadedly sleeved with the crankshaft connecting end (15).

3. The oil seal press-fitting tool for facilitating positioning according to claim 1, characterized in that: The right surfaces of the connecting plate (5) and the fixing ring (1) are both provided with two threaded holes (8); Wherein, two pairs of threaded holes 1 (8) are internally threadedly sleeved with two screws 2 (9).

4. The oil seal press-fitting tool for facilitating positioning according to claim 1, characterized in that: A threaded hole three (14) is provided through the left surface of the guide ring (2).

5. The oil seal press-fitting tool for facilitating positioning according to claim 1, characterized in that: The annular side surface of the guide ring (2) is provided with a guide surface (12).

6. The oil seal press-fitting tool for facilitating positioning according to claim 1, characterized in that: An extrusion ring (6) is fixedly connected to the upper surface of the fixing ring (1).

7. The oil seal press-fitting tool for facilitating positioning according to claim 1, characterized in that: The annular side surface of the crankshaft connecting end (15) is provided with a mounting step (16).

8. The oil seal press-fitting tool for facilitating positioning according to claim 4, characterized in that: The threaded hole three (14) is threadedly sleeved with the bolt (11).

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