Valve oil seal press-fitting assembly device capable of being quickly disassembled and assembled

Abstract

The invention provides a valve oil seal press-fitting assembly device capable of being quickly disassembled and assembled, and relates to the technical field of valve oil seal press-fitting, the valve oil seal press-fitting assembly device comprises a press-fitting structure and a movable bottom plate, the press-fitting structure comprises four press-fitting parts, four positioning mandrels and four press-fitting guide rods, and one end of each positioning mandrel is connected with a packaging cover plate in an assembled mode; the press fitting piece comprises a press fitting head, a press fitting seat, a positioning column groove A, a positioning column groove B and a guide groove; according to the technical scheme, the multiple press-fitting structures correspond to the multiple valves on the engine, when the valve oil seal is arranged at the positions of the valves of the engine, press-fitting guide rods in the multiple press-fitting pieces can be driven to move towards the bottom by means of the movable bottom plate, guide rods on the press-fitting guide rods penetrate through holes in the valve oil seal, and then the valve oil seal is pressed through the press-fitting guide rods. The valve oil seal is straightened to the rough position, then the valve oil seal is guided by the guide groove in one end of the press-fitting head on the press-fitting piece, the valve oil seal is accurately straightened through the positioning column groove B, the press-fitting efficiency is high, and the valve oil seal can be quickly separated from the press-fitting piece and the press-fitting guide rod.

Description

Technical Field

[0001] The invention relates to the technical field of valve oil seal press-fitting, in particular to a valve oil seal press-fitting assembly device which can be quickly disassembled and assembled. Background Art

[0002] A diesel engine is an engine that burns diesel to release energy. The advantages of a diesel engine are high torque and good economic performance. The working process of a diesel engine is similar to that of a gasoline engine in many ways, and each working cycle also undergoes four strokes: intake, compression, power, and exhaust. However, since the fuel used in a diesel engine is diesel, its viscosity is greater than that of gasoline and it is not easy to evaporate, while its auto-ignition temperature is lower than that of gasoline. Therefore, the formation of the combustible mixture and the ignition method are different from those of a gasoline engine.

[0003] The valve oil seal is a type of oil seal, which is generally made of an exoskeleton and fluororubber vulcanized together. A self-tightening spring or steel wire is installed at the mouth of the oil seal to seal the engine valve guide. The valve oil seal can prevent the engine oil from entering the intake and exhaust pipes, avoid oil loss, prevent the mixed gas of gasoline and air and exhaust gas leakage, and prevent the engine oil from entering the combustion chamber. The valve oil seal is one of the important parts of the engine valve group. It comes into contact with gasoline and oil at high temperature, so it needs to be made of materials with excellent heat resistance and oil resistance, and is generally made of fluororubber.

[0004] The installation of existing valve oil seals generally uses tooling to assist in installation. Conventionally, sleeves, punches, etc. are used to position the valve oil seals at the installation position. However, this method makes it difficult to position the valve oil seals on multiple valves of the engine at the same time, and after the valve oil seals are positioned, it is difficult to quickly remove the tooling or tools, resulting in low overall operating efficiency. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, an embodiment of the present application provides a valve oil seal press-fitting assembly device that can be quickly disassembled and assembled. Multiple press-fitting structures correspond to multiple valves on the engine. When the valve oil seal is placed at the engine valve, the press-fitting guide rods inside the multiple press-fitting parts can be driven to move toward the bottom with the help of a movable bottom plate. First, the guide rod on the press-fitting guide rod passes through the hole inside the valve oil seal to correct the valve oil seal to an approximate position. Then, the valve oil seal is guided by the guide groove at one end of the press-fitting head on the press-fitting part, and the valve oil seal is accurately corrected using the positioning column groove B, thereby achieving high press-fitting efficiency and facilitating the rapid separation of the valve oil seal, the press-fitting part, and the press-fitting guide rod.

[0006] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0007] A quick-disassembly and assembly valve oil seal press-fit assembly device comprises a press-fit structure and a movable bottom plate, wherein a plurality of press-fit structures are provided and are adapted to the engine valve;

[0008] The movable bottom plate is assembled on the top of the press-fit structure;

[0009] The press-fitting structure includes four press-fitting parts, each of which is provided with a positioning core shaft on its outside, and a press-fitting guide rod is provided on its inside; one end of the press-fitting guide rod passes through one end of the press-fitting part to the other end to locate the center of the valve oil seal, and the press-fitting part is used to locate the edge of the valve oil seal so that the valve oil seal can be installed on the engine valve.

[0010] In a possible implementation, the four pressing parts are arranged in a rectangular shape, one end of the positioning core shaft is assembled and fixed to the movable bottom plate, and the other end of the positioning core shaft is assembled and connected with a packaging cover plate to package the pressing parts and one end of the pressing guide rod into the interior of the positioning core shaft.

[0011] In a possible implementation, the press-fitting part includes a press-fitting head, one end of which is integrally formed with a press-fitting seat, and the other end of the press-fitting head is internally processed with a positioning column groove A, a positioning column groove B and a guide groove, and the positioning column groove A, the positioning column groove B and the guide groove are coaxially arranged.

[0012] In a possible implementation, the positioning column groove B is located between the positioning column groove A and the guide groove, the cross-sectional circle diameter of the positioning column groove A is smaller than the cross-sectional circle diameter of the positioning column groove B, one end of the guide groove is connected to one end of the positioning column groove B, and the axial section of the guide groove is an isosceles trapezoid.

[0013] In one possible implementation, the press-fit guide rod includes a guide rod seat, one end of the guide rod seat is integrally formed with a guide rod, and the other end of the guide rod seat is integrally formed with a guide tail; the guide rod, guide rod seat and guide tail are adapted to be connected inside the press-fit part, and one end of the guide rod extends from the inside of the press-fit head and extends into the hole of the valve oil seal.

[0014] In a possible implementation, a correction structure is disposed on the top of the press-fit structure, and the correction structure includes a fixed bottom plate, a base plate is assembled and connected to the top of the fixed bottom plate, and the movable bottom plate is movably connected between the fixed bottom plate and the base plate.

[0015] In a possible implementation, a bolt A is movably connected inside the centers of two adjacent sides of the fixed base plate, two annular grooves are processed on the surface of the middle part of the bolt A, and a retaining ring is clamped inside the two annular grooves; one end of the bolt A is threadedly connected to the inside of the movable base plate, and the two retaining rings limit the movement of the bolt A along the axis of the bolt inside the fixed base plate.

[0016] In a possible implementation, positioning column grooves B are machined at the centers of the four sides of the fixed base plate, and the cross-section of the positioning column groove B is cross-shaped; two bolts A located at two adjacent sides of the fixed base plate are movably connected to the inside of the positioning column groove B in the horizontal direction, and the two retaining rings on the bolts A are supported on the inner wall of the positioning column groove B in the vertical direction.

[0017] In a possible implementation, a bolt B is movably connected inside the positioning column groove B at the center of two adjacent sides of the fixed base plate, and the external sleeve of the bolt B is connected to a limiting sleeve; one end of the bolt B is threadedly connected to the interior of the movable base plate, and the limiting sleeve is slidably connected to the interior of the positioning column groove B, thereby limiting the bolt B from swinging in the horizontal plane inside the positioning column groove B.

[0018] In a possible implementation, two bolts A and two positioning column grooves B in the four positioning column grooves B are used in combination, and the bolts A and the positioning column grooves B are coaxially arranged and located on both sides of the fixed base plate.

[0019] The beneficial effects of this application are:

[0020] First, in this scheme, multiple press-fitting structures correspond to multiple valves on the engine. When the valve oil seal is placed at the engine valve, the press-fitting guide rods inside the multiple press-fitting parts can be driven to move toward the bottom with the help of the movable bottom plate. First, the guide rod on the press-fitting guide rod passes through the hole inside the valve oil seal to correct the valve oil seal to a rough position. Then, the guide groove at one end of the press-fitting head on the press-fitting part guides the valve oil seal, and the positioning column groove B is used to accurately correct the valve oil seal. The press-fitting efficiency is high, and it is conducive to the rapid separation of the valve oil seal, the press-fitting part, and the press-fitting guide rod.

[0021] Second, in this solution, by adjusting the threaded connection between the bolt A and the movable bottom plate, the movable bottom plate can be slid inside the fixed bottom plate by means of a retaining ring supported on the inner wall of the positioning column groove B, so as to facilitate adjustment of the device to correct the initial position of the valve oil seal;

[0022] Third, by adjusting the threaded connection between bolt A and the movable base plate, bolt A and bolt B at the edge of the fixed base plate where bolt A is located are made to slide in the corresponding positioning column groove B respectively, and bolt B located on the opposite side of bolt A slides inside the limit sleeve, so as to ensure the stability of the movable base plate in the fixed base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is one of the overall structural schematic diagrams of the present invention;

[0024] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0025] Figure 3 A cross-sectional view of a positioning mandrel and a press-fitting member of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the positioning mandrel and the press-fitting part of the present invention in a disconnected state;

[0027] Figure 5 is a cross-sectional view of a fixed base plate of the present invention;

[0028] Figure 6 For the present invention Figure 5 The enlarged schematic diagram of the middle part B;

[0029] Figure 7 For the present invention Figure 5 Enlarged schematic diagram of part A in the middle.

[0030] Figure numerals: 1. Base plate; 2. Fixed base plate; 3. Positioning mandrel; 4. Movable base plate; 5. Press-fitted part; 501. Press-fitting seat; 502. Press-fitting head; 6. Press-fitting guide rod; 601. Guide rod; 602. Guide rod seat; 603. Guide tail; 7. Packaging cover plate; 8. Positioning column groove A; 9. Guide groove; 10. Positioning column groove B; 11. Bolt A; 12. Bolt B; 13. Ring groove; 14. Retaining ring; 15. Limiting sleeve. DETAILED DESCRIPTION

[0031] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0032] Embodiment 1:

[0033] This embodiment introduces a specific structure of a quick disassembly and assembly valve oil seal press assembly device, and specific reference is made to Figure 1-Figure 4 As shown, it includes a plurality of press-fitting structures adapted to the engine valves and a movable bottom plate 4 assembled on the top of the press-fitting structures, the press-fitting structures include four press-fitting parts 5, the outsides of the four press-fitting parts 5 are all provided with positioning mandrels 3, and the insides of the press-fitting parts 5 are provided with press-fitting guide rods 6;

[0034] like Figure 3 As shown, the press-fitting part 5 includes a press-fitting head 502, one end of which is integrally formed with a press-fitting seat 501, and the other end of the press-fitting head 502 is internally processed with a positioning column groove A8, a positioning column groove B10 and a guide groove 9;

[0035] Among them, the four pressing parts 5 are arranged in a rectangular shape, and one end of the positioning core shaft 3 is assembled and fixed with the movable bottom plate 4, and the packaging cover plate 7 is assembled to the other end of the positioning core shaft 3 by bolts, and the pressing part 5 and one end of the pressing guide rod 6 are packaged into the interior of the positioning core shaft 3, and one end of the pressing guide rod 6 can be used to pass through one end of the pressing part 5 to the other end to locate the center of the valve oil seal, and the edge of the valve oil seal is positioned by using the pressing part 5, so that the valve oil seal is installed at the engine valve. In the process of pressing the valve oil seal, one end of the pressing guide rod 6 can be used to guide the valve oil seal and correct it to a state that it is basically facing the engine valve;

[0036] At the same time, when one end of the press-fitting guide rod 6 extends into the interior of the valve oil seal, the valve oil seal can be corrected by means of the coaxial arrangement of the positioning column groove A8, the positioning column groove B10 and the guide groove 9 on the press-fitting part 5, so as to facilitate the rapid press-fitting of multiple valve oil seals at the engine valve, and when the press-fitting work is completed, the multiple press-fitting structures are driven to quickly disconnect from the valve oil seal by means of the movable bottom plate 4;

[0037] Secondly, in order to facilitate the installation of the press-fit guide rod 6 into the interior of the press-fit part 5, as shown in FIG. Figure 3 As shown, the press-fit guide rod 6 includes a guide rod seat 602, one end of the guide rod seat 602 is integrally formed with a guide rod 601, and the other end of the guide rod seat 602 is integrally formed with a guide tail 603. By making the guide rod 601, the guide rod seat 602 and the guide tail 603 adaptably connected inside the press-fit part 5, one end of the press-fit guide rod 6 can be accommodated inside the press-fit part 5 after the packaging cover plate 7 and the positioning mandrel 3 are installed and fixed;

[0038] At the same time, by extending one end of the guide rod 601 from the inside of the press-fitting head 502, it can be extended into the hole of the valve oil seal to correct the valve oil seal to the engine valve.

[0039] The above-mentioned design assembles multiple press-fitting structures consisting of four press-fitting parts 5, four positioning core shafts 3 and four press-fitting guide rods 6 at the bottom of the movable bottom plate 4, so that the multiple press-fitting structures correspond to the multiple valves on the engine. When the valve oil seal is placed at the engine valve, the press-fitting guide rods 6 inside the multiple press-fitting parts 5 can be driven to move to the bottom with the help of the movable bottom plate 4. First, the guide rod 601 on the press-fitting guide rod 6 passes through the hole inside the valve oil seal to correct the valve oil seal to the approximate position. Then, the guide groove 9 at one end of the press-fitting head 502 on the press-fitting part 5 guides the valve oil seal, and the positioning column groove B10 is used to accurately correct the valve oil seal. The press-fitting efficiency of the valve oil seal is high. At the same time, the multiple press-fitting parts 5 and the multiple press-fitting guide rods 6 can be synchronously driven to quickly disconnect from the multiple valve oil seals, thereby achieving a quick removal effect.

[0040] Embodiment 2:

[0041] Based on Example 1, this example introduces the specific structure of the fixed base plate 2. Figure 1 , Figures 5 to 7 As shown, the centers of two adjacent sides of the fixed bottom plate 2 are movably connected with bolts A11, and the middle of the bolt A11 is processed with two annular grooves 13, and the insides of the two annular grooves 13 are clamped with clamping rings 14;

[0042] The centers of the four sides of the fixed bottom plate 2 are all processed with positioning column grooves B10, and the cross section of the positioning column grooves B10 is cross-shaped;

[0043] Among them, two bolts A11 in the four positioning column grooves B10 and two positioning column grooves B10 are used in combination, and the bolts A11 and the positioning column grooves B10 are coaxially arranged and located on both sides of the fixed base plate 2;

[0044] Secondly, two bolts A11 located at two adjacent sides of the fixed bottom plate 2 are movably connected to the inside of the positioning column groove B10 in the horizontal direction, and two clamping rings 14 on the bolt A11 are supported on the inner wall of the positioning column groove B10 in the vertical direction. By threading one end of the bolt A11 to the inside of the movable bottom plate 4, and using the two clamping rings 14 to limit the movement of the bolt A11 along the axis direction inside the fixed bottom plate 2, the movable bottom plate 4 can be controlled to slide inside the fixed bottom plate 2 by controlling the threaded connection between the bolt A11 and the movable bottom plate 4;

[0045] At the same time, a bolt A11 adjacent to the bolt A11 drives the two retaining rings 14 thereon to keep synchronous movement with the movable bottom plate 4 inside the corresponding positioning column groove B10;

[0046] Furthermore, in order to improve the stability of the movable bottom plate 4 in the movement inside the fixed bottom plate 2, as Figure 5 and Figure 7 As shown, the positioning column groove B10 at the center of two adjacent sides of the fixed bottom plate 2 is movably connected with a bolt B12, and the outer sleeve of the bolt B12 is connected with a limiting sleeve 15. By threading one end of the bolt B12 to the inside of the movable bottom plate 4, when the movable bottom plate 4 slides inside the fixed bottom plate 2, the bolt B12 (located on the opposite side of the bolt A11 used to adjust the movable state of the movable bottom plate 4 inside the fixed bottom plate 2) can drive the limiting sleeve 15 to be slidably connected to the inside of the positioning column groove B10, and at the same time, the limiting sleeve 15 limits the bolt B12 from swinging in the horizontal plane inside the positioning column groove B10, so as to improve the stability of the movable bottom plate 4 inside the fixed bottom plate 2;

[0047] The above design can make the movable bottom plate 4 slide inside the fixed bottom plate 2 by adjusting the threaded connection between the bolt A11 and the movable bottom plate 4, and by supporting the inner wall of the positioning column groove B10 with the help of the snap ring 14, so as to facilitate fine adjustment when the integral deviation of the valve oil seal of the device is present;

[0048] At the same time, in this state, the bolt A11 and the bolt B12 at the edge of the fixed base plate 2 where the bolt A11 is located slide in the corresponding positioning column groove B10 respectively (the bolt A11 drives the retaining ring 14 to slide in the positioning column groove B10, and the bolt B12 drives the limiting sleeve 15 to slide in the positioning column groove B10), and the bolt B12 located on the opposite side of the bolt A11 slides in the limiting sleeve 15, so as to ensure the stability of the movable base plate 4 in the fixed base plate 2.

[0049] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A quick disassembly and assembly valve oil seal press assembly device, characterized in that: include: A press-fit structure, which is provided in plurality and is adapted to the engine valve; A movable bottom plate (4) mounted on the top of the press-fit structure; The press-fitting structure comprises four press-fitting parts (5), each of the four press-fitting parts (5) is provided with a positioning mandrel (3) on its outside, and a press-fitting guide rod (6) is provided on its inside. One end of the press-fit guide rod (6) passes through one end of the press-fit component (5) to the other end to locate the center of the valve oil seal, and the press-fit component (5) is used to locate the edge of the valve oil seal so that the valve oil seal is installed on the engine valve.

2. A quick disassembly and assembly valve oil seal press assembly device as claimed in claim 1, characterized in that: The four pressing parts (5) are arranged in a rectangular shape, one end of the positioning core shaft (3) is assembled and fixed to the movable bottom plate (4), and the other end of the positioning core shaft (3) is assembled and connected with a packaging cover plate (7), so that the pressing parts (5) and one end of the pressing guide rod (6) are packaged into the interior of the positioning core shaft (3).

3. A quick disassembly and assembly valve oil seal press assembly device as claimed in claim 1, characterized in that: The press-fitting part (5) comprises a press-fitting head (502), one end of which is integrally formed with a press-fitting seat (501), and the other end of which is internally processed with a positioning column groove A (8), a positioning column groove B (10) and a guide groove (9), wherein the positioning column groove A (8), the positioning column groove B (10) and the guide groove (9) are coaxially arranged.

4. A quick disassembly and assembly valve oil seal press assembly device as claimed in claim 3, characterized in that: The positioning column groove B (10) is located between the positioning column groove A (8) and the guide groove (9), the cross-sectional circle diameter of the positioning column groove A (8) is smaller than the cross-sectional circle diameter of the positioning column groove B (10), one end of the guide groove (9) is connected to one end of the positioning column groove B (10), and the axial section of the guide groove (9) is an isosceles trapezoid.

5. A quick disassembly and assembly valve oil seal press assembly device as claimed in claim 3, characterized in that: The press-fit guide rod (6) comprises a guide rod seat (602), one end of the guide rod seat (602) is integrally formed with a guide rod (601), and the other end of the guide rod seat (602) is integrally formed with a guide tail (603); The guide rod (601), the guide rod seat (602) and the guide tail (603) are adapted to be connected inside the press-fitting part (5), and one end of the guide rod (601) extends from the inside of the press-fitting head (502) and extends into the hole of the valve oil seal.

6. A quick disassembly and assembly valve oil seal press assembly device as claimed in claim 1, characterized in that: A correction structure is arranged on the top of the press-fit structure, and the correction structure comprises a fixed bottom plate (2), the top of the fixed bottom plate (2) is assembled and connected with a base plate (1), and the movable bottom plate (4) is movably connected between the fixed bottom plate (2) and the base plate (1).

7. A quick disassembly and assembly valve oil seal press assembly device as claimed in claim 6, characterized in that: Bolts A (11) are movably connected inside the centers of two adjacent sides of the fixed bottom plate (2), two annular grooves (13) are processed on the surface of the middle part of the bolt A (11), and clamping rings (14) are clamped inside the two annular grooves (13); One end of the bolt A (11) is threadedly connected to the inside of the movable base plate (4), and the two clamping rings (14) restrict the bolt A (11) from moving along its axis inside the fixed base plate (2).

8. A quick disassembly and assembly valve oil seal press assembly device as claimed in claim 6, characterized in that: The centers of the four sides of the fixed base plate (2) are all processed with positioning column grooves B (10), and the cross section of the positioning column grooves B (10) is cross-shaped; Among them, two bolts A (11) located at two adjacent edges of the fixed base plate (2) are movably connected to the inside of the positioning column groove B (10) in the horizontal direction, and two retaining rings (14) on the bolts A (11) are supported on the inner wall of the positioning column groove B (10) in the vertical direction.

9. A quick disassembly and assembly valve oil seal press assembly device as claimed in claim 6, characterized in that: The positioning column grooves B (10) at the centers of two adjacent sides of the fixed base plate (2) are movably connected with bolts B (12) inside, and the bolts B (12) are sleeve-connected outside with a limiting sleeve (15); One end of the bolt B (12) is threadedly connected to the inside of the movable base plate (4), and the limiting sleeve (15) is slidably connected to the inside of the positioning column groove B (10) to limit the bolt B (12) from swinging in the horizontal plane inside the positioning column groove B (10).

10. A quick disassembly and assembly valve oil seal press assembly device as claimed in claim 8, characterized in that: Two bolts A (11) and two positioning column grooves B (10) in the four positioning column grooves B (10) are used in combination, and the bolts A (11) and the positioning column grooves B (10) are coaxially arranged and located on both sides of the fixed base plate (2).

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