Valve guide pipe oiling mechanism and tool kit
By designing the valve conduit oiling mechanism, using the design of the limit part and oil outlet passage, the problems of low oiling efficiency and difficult to control the oiling length of the valve conduit are solved, and a more efficient and uniform oiling effect is achieved.
Patent Information
- Application Number
- CN202421742739.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-22
AI Technical Summary
In the prior art, the valve conduit has low oiling efficiency and difficult to control the oiling length, resulting in insufficient reliability during engine assembly.
A valve conduit oil coating mechanism is designed, including an oil coating tube, an elastic connection and a spherical member. Through the design of the limiting part and oil outlet passage, the engine oil is evenly applied on the valve conduit.
Improves the efficiency and uniformity of valve conduit oiling, reduces the user's experience dependence and shortens working time.
Smart Images
Figure CN223027715U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oiling tools, and more specifically, to an oiling mechanism and a tooling kit for valve guides. Background Art
[0002] The cylinder head is a component of the engine, and a plurality of valve guides are connected to the cylinder head. To ensure the reliability of the engine operation, it is necessary to apply a circle of engine oil to the outer diameter part at the top end of the valve guide within a certain length range during assembly. The existing engine oil application method is to use a dipping rod. After the operator dips the dipping rod into the engine oil, the valve guide is oiled. Since the method of applying engine oil by dipping the dipping rod depends too much on the experience of the user, sometimes the dipping may be insufficient, and the oiling length may not meet the requirements. Moreover, since the number of valve guides is large, the existing engine oil application method takes a long time and has low working efficiency. Summary of the Utility Model
[0003] The utility model aims to overcome the problems of low oiling efficiency and difficult control of the oiling length of the valve guide in the above-mentioned prior art, and provides an oiling mechanism and a tooling kit for valve guides.
[0004] To solve the above technical problems, the technical solution adopted by the utility model is as follows:
[0005] An oiling mechanism for valve guides includes an oiling pipe, the oiling pipe has an inner cavity for containing engine oil and is provided with an oil outlet channel communicating with the inner cavity. A limiting part is arranged radially inside the oil outlet channel. The limiting part has an opening communicating with the oil outlet channel, and the limiting part has a first surface and a second surface located at both ends of the opening. An elastic connecting piece is connected inside the oiling pipe. And a spherical part, the spherical part is connected to one end of the elastic connecting piece to abut against one side of the first surface of the opening and seal the oil outlet channel. At least part of the spherical part is located on one side of the second surface. The second surface is used to abut against the valve guide, and the distance between the second surface and the end of the oil outlet channel is the length of the part of the valve guide that needs to be oiled.
[0006] In the technical solution of the present utility model, when in a non-working state, the spherical member is pressed against the first surface of the limiting portion under the action of the elastic connecting member, and the spherical member can block the oil outlet channel so that the engine oil does not flow out. When in a working state, the oil outlet channel is docked with the valve guide, so that the valve guide enters the oil outlet channel until it abuts against the second surface of the limiting portion. At this time, the spherical member compresses the elastic connecting member under the push of the valve guide and disengages from the limiting portion, thereby connecting the oil outlet channel to enable the engine oil to flow out. After the coating is completed, the spherical member resets under the action of the elastic connecting member and blocks the oil outlet channel again. Since the distance between the second surface of the limiting portion and the end of the oil outlet channel is the length of the oil coating portion required for the valve guide, the oil coating areas of each valve guide can be consistent, ensuring the uniformity of the coating. By using the valve guide oil coating mechanism of the present utility model, it is not necessary to repeatedly dip the engine oil, which can improve the work efficiency.
[0007] In some preferred embodiments, the inner diameter of the oil outlet channel matches the outer diameter of the valve guide, and the length of the second surface in the radial direction is less than the wall thickness of the valve guide. When using the valve guide oil coating mechanism to coat the engine oil, the matching of the sizes of the valve guide and the oil outlet channel can ensure full contact. The radial length of the second surface being less than the wall thickness of the valve guide enables the valve guide to abut against the spherical member while abutting against the second surface.
[0008] In some preferred embodiments, the first surface is a conical surface, and the inner diameter of the conical surface gradually decreases from the first surface to the second surface direction. It is easier for the spherical member to block or open the oil outlet channel when contacting the conical surface, and the conical surface facilitates the flow of the engine oil in the oil outlet channel.
[0009] In some preferred embodiments, it further includes a fixing member, the fixing member is connected in the oil coating pipe, one end of the elastic connecting member abuts against the fixing member, and the other end thereof abuts against the spherical member.
[0010] In some preferred embodiments, the elastic connecting member is a spring, one end of the spring abuts against one end of the fixing member, and the other end of the spring abuts against the spherical member.
[0011] In some preferred embodiments, the spherical member is connected with an extension section, and the extension section is axially inserted through the spring for assembly.
[0012] In some preferred embodiments, a transition channel is further provided between the inner cavity of the oil coating pipe and the oil outlet channel, the fixing member is detachably connected in the transition channel, and the fixing member is provided with a through hole for the engine oil to flow through along the extending direction of the transition channel.
[0013] In some preferred embodiments, the fixing member is provided with an external thread, and the transition channel is provided with an internal thread matching therewith, and the external thread is threadedly connected with the internal thread.
[0014] In some preferred embodiments, the oil application pipe is further provided with an oil injection port, and the oil injection port is provided with an end cap, and a sealing ring is provided between the end cap and the oil application pipe.
[0015] The present utility model also discloses an oil application tooling kit for valve guides, which includes a mounting plate and at least one of the above-mentioned oil application mechanisms for valve guides. Each oil application mechanism for valve guides is mounted on the mounting plate in the same direction, and the positions of each oil application mechanism for valve guides on the mounting plate are configured such that each oil outlet channel can be simultaneously and respectively docked with different valve guides. The oil application tooling kit for valve guides can simultaneously apply oil to a plurality of valve guides, effectively improving the working efficiency.
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0017] For the oil application mechanism for valve guides of the present utility model, when in a non-working state, the spherical member is pressed against the first surface of the limiting portion under the action of the elastic connecting member, and the spherical member can block the oil outlet channel so that the engine oil does not flow out. When in a working state, the oil outlet channel is docked with the valve guide, and the valve guide enters the oil outlet channel until it abuts against the second surface of the limiting portion. At this time, the spherical member compresses the elastic connecting member under the push of the valve guide and disengages from the limiting portion, thereby connecting the oil outlet channel so that the engine oil can flow out. After the coating is completed, the spherical member is reset under the action of the elastic connecting member and blocks the oil outlet channel again. Since the distance between the second surface of the limiting portion and the end of the oil outlet channel is the length of the oil application part required for the valve guide, the oil application areas of each valve guide can be consistent, ensuring the uniformity of the coating. By using the oil application mechanism for valve guides of the present utility model, it is not necessary to repeatedly dip the engine oil, which can improve the working efficiency.
[0018] For the oil application tooling kit for valve guides of the present utility model, since a plurality of oil application mechanisms for valve guides are provided on the mounting plate, it can simultaneously apply oil to a plurality of valve guides, effectively improving the working efficiency. Description of the Drawings
[0019] Figure 1 is a cross-sectional view of the oil application mechanism for valve guides of the present utility model;
[0020] Figure 2 is Figure 1 an enlarged view of the lower part;
[0021] Figure 3 is Figure 2 a schematic diagram of the lower part with the spherical member and the elastic connecting member removed;
[0022] Figure 4 is a perspective view of the lower end structure of the oil application pipe of the oil application mechanism for valve guides of the present utility model;
[0023] Figure 5It is a schematic diagram of the overall structure of the oiling tooling kit for the valve guide of the present utility model.
[0024] In the attached drawings:
[0025] 1. Oil injection pipe; 101. Inner cavity; 102. Oil outlet channel; 1021. First channel; 1022. Second channel; 103. Limiting part; 1032. First surface; 1031. Second surface; 1033. Opening; 104. Transition channel; 105. Countersunk hole; 106. Oil injection port; 2. Elastic connecting piece; 3. Spherical part; 301. Elongated section; 4. Fixing piece; 401. Through hole; 5. End cover; 6. Sealing ring; 7. Mounting plate; 701. Handle. Specific embodiments
[0026] The attached drawings are only for illustrative purposes and should not be construed as a limitation of this patent; for better illustration of this embodiment, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted. The positional relationships described in the attached drawings are only for illustrative purposes and should not be construed as a limitation of this patent.
[0027] In the attached drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationships in the attached drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0028] The technical solutions of the present utility model will be further specifically described below through specific embodiments in conjunction with the attached drawings:
[0029] Embodiment 1
[0030] Refer to Figures 1 to 4, this embodiment discloses an oiling mechanism for a valve guide, which includes an oiling pipe 1, an elastic connecting piece 2, and a spherical piece 3. The oiling pipe 1 has an inner cavity 101 for accommodating engine oil, and the engine oil to be applied can be stored in the inner cavity 101 of the oiling pipe 1. An oil outlet channel 102 communicating with the inner cavity 101 is provided at the bottom of the oiling pipe 1, and the engine oil can be applied to the valve guide from the inner cavity 101 through the oil outlet channel 102. The elastic connecting piece 2 is connected in the oiling pipe 1, and it can be connected in the inner cavity of the oiling pipe or in the oil outlet channel of the oiling pipe. In some embodiments, the elastic connecting piece 2 can be directly connected to the oiling pipe 1, and in other embodiments, the elastic connecting piece 2 can also be connected to the oiling pipe 1 through an intermediate part. One end of the elastic connecting piece 2 that is not connected to the inner cavity 101 of the oiling pipe 1 abuts against the spherical piece 3, and the spherical piece 3 abuts against the first surface 1032 of the oil outlet channel 102 to seal off the oil outlet channel 102.
[0031] Further referring to Figure 2 and Figure 3 , a limiting part 103 is provided inside the oil outlet channel 102 and at a certain distance from the end of the oil outlet channel 102. The limiting part 103 has an opening 1033 communicating with the oil outlet channel 102, and the limiting part 103 has a first surface 1032 and a second surface 1031 located at both ends of the opening 1033. For the convenience of description, the parts of the oil outlet channel 102 on both sides of the limiting part 103 are respectively defined as a first channel 1021 and a second channel 1022, where the first channel 1021 is the channel part on the side of the second surface 1031, and the second channel 1022 is the channel part on the side of the first surface 1032. The spherical piece 3 is located in the second channel 1022 and abuts against the first surface 1032. In this embodiment, the outer diameter of the spherical piece 3 is larger than the inner diameter of the limiting part 103. Therefore, when the spherical piece 3 abuts against the first surface 1032, it can partially pass through the opening 1033 of the limiting part 103, so that a part of the spherical piece 3 passes through the limiting part 103 and enters the first channel 1021, but the main body of the spherical piece 3 is located in the second channel 1022. When no other external force acts, the spherical piece 3 can block the communication between the first channel 1021 and the second channel 1022 under the abutment of the elastic connecting piece 2 and block the flow of engine oil. The second surface 1031 is used to abut against the valve guide, and the distance between the second surface 1031 and the end of the oil outlet channel 102 is the length of the oiling part required for the valve guide.
[0032] The working principle of the valve guide oiling mechanism in this embodiment is as follows: When in the non-working state, the spherical member 3 is pressed against the first surface 1032 of the limiting portion 103 under the action of the elastic connecting member 2. The outer diameter of the spherical member 3 is larger than the inner diameter of the limiting portion 103. Therefore, the spherical member 3 can block the oil outlet channel 102 to prevent the engine oil from flowing out. When in the working state, the oil outlet channel 102 is docked with the valve guide, and the valve guide enters the oil outlet channel 102 to press against the spherical member 3 until it presses against the second surface 1031 of the limiting portion 103. At this time, the spherical member 3 compresses the elastic connecting member 2 under the push of the valve guide and disengages from the first surface 1032 of the limiting portion 103, enabling the engine oil to flow out from the gap between the limiting portion 103 and the spherical member 3. After the coating is completed, the spherical member 3 resets under the action of the elastic connecting member 2 and re-blocks the opening 1033 of the limiting portion 103, thereby sealing the oil outlet channel 102.
[0033] Since the distance between the second surface 1031 of the limiting portion 103 and the end of the oil outlet channel 102 is the length of the oiling part required for the valve guide, that is, the length of the first channel 1021 is equivalent to the length of the part of the valve guide where the engine oil is coated. Using this mechanism can ensure that the length of the engine oil coated on the valve guide is consistent and ensure the uniformity of the coating. The inner cavity 101 of the oiling pipe can store the engine oil, eliminating the need to repeatedly dip the engine oil, which can improve the working efficiency.
[0034] In the valve guide oiling mechanism of this embodiment, the inner diameter of the oil outlet channel 102 matches the outer diameter of the valve guide. When using the valve guide oiling mechanism to coat the engine oil, the outer wall of the valve guide can be in full contact with the inner wall of the oil outlet channel 102, making the oiling coverage area more uniform. At the same time, the radial length of the second surface 1031 of the limiting portion 103 is less than the wall thickness of the valve guide, so that the valve guide can press against the spherical member 3 while pressing against the second surface 1031.
[0035] Reference Figure 1 Refer to , in this embodiment, an oil injection port 106 is further provided at the top of the oiling pipe 1 for injecting engine oil into the inner cavity 101. An end cover 5 is provided on the oil injection port 106. The end cover 5 is used to seal the oil injection port 106 and can prevent the engine oil from leaking or volatilizing. A sealing ring 6 is also provided between the end cover 5 and the oiling pipe 1 to further improve the sealing effect between the end cover 5 and the oil injection port 106.
[0036] In this embodiment, the elastic connecting member 2 is a spring. One end of the spring is connected to the inner cavity 101 of the oiling pipe, and the other end of the spring presses against the spherical member 3. In some other embodiments, it can also be a spring sheet or other elastic connecting members, as long as the spherical member 3 can be elastically pressed against the limiting portion 103 without affecting the passage of the engine oil.
[0037] In this embodiment, an extension section 301 is connected to the upper end of the spherical part 3. The extension section 301 axially penetrates upward through the spring assembly. The extension section 301 can play a guiding role to prevent the spherical part 3 from deviating from the spring.
[0038] Embodiment 2
[0039] Reference Figures 1 to 4 , similar to Embodiment 1, the valve guide oiling mechanism disclosed in this embodiment includes an oiling pipe 1, an elastic connecting piece 2, and a spherical part 3. The difference is that it further includes a fixing piece 4. The oiling pipe 1 has an inner cavity 101 for containing engine oil and is provided with an oil outlet channel 102 communicating with the inner cavity 101. A transition channel 104 is also provided between the inner cavity 101 and the oil outlet channel 102 of the oiling pipe 1. The fixing piece 4 is detachably connected in the transition channel 104. One end of the elastic connecting piece 2 abuts against the fixing piece 4, and the other end abuts against the spherical part 3. The fixing piece 4 is provided with a through hole 401 for the engine oil to flow through along the extending direction of the transition channel 104, so that the engine oil can flow from the inner cavity 101 of the oiling pipe 1 to the oil outlet channel 102 via the transition channel 104. A limiting part 103 is radially provided inside the oil outlet channel 102. The distance between the limiting part 103 and the end of the oil outlet channel 102 is the length of the oiling part required for the valve guide. The spherical part 3 is on the side of the limiting part 103 close to the inner cavity 101. The outer diameter of the spherical part 3 is greater than the inner diameter of the limiting part 103, and the spherical part 3 partially passes through the limiting part 103.
[0040] In this embodiment, the fixing piece 4 is threadedly connected in the transition channel 104. The fixing piece 4 is provided with an external thread, and the transition channel 104 is provided with an internal thread matching it. The external thread is threadedly connected with the internal thread. Threaded connection is convenient for installing and replacing parts. Further, in order to facilitate the assembly between the fixing piece 4 and the transition channel 104, the inner diameter of the transition channel 104 is smaller than the inner diameter of the inner cavity 101. A counterbore 105 facing the transition channel 104 is provided at the connection between the inner cavity 101 and the transition channel 104. In this way, when installing, the fixing piece 4 can be placed into the inner cavity 101 from the oil injection port 106 end, and the guiding function of the counterbore 105 facilitates the positioning of the fixing piece 4 and screwing it into the transition channel 104. Of course, in other embodiments, the oiling pipe 1 can also be divided into detachable pipe segments to facilitate the assembly of its internal parts.
[0041] Embodiment 3
[0042] Reference Figure 4 , the difference between this embodiment and Embodiment 1 is that the first surface 1032 is a conical surface, and the inner diameter of the conical surface gradually decreases from the direction of the first surface 1032 to the second surface 1031. The spherical part 3 is more likely to block or open the oil outlet channel 102 when contacting the conical surface. Compared with a right-angled surface, the conical surface is more conducive to the flow of engine oil in the oil outlet channel 102.
[0043] Example 4
[0044] Reference Figure 4 , this embodiment discloses an oiling tooling kit for valve guides, which includes a mounting plate 7 and at least one oiling mechanism for valve guides. Each oiling mechanism for valve guides is mounted on the mounting plate 7 in the same direction, and the positions of each oiling mechanism for valve guides on the mounting plate 7 are configured such that each oil outlet channel 102 can be simultaneously and respectively docked with different valve guides. The oiling mechanism for valve guides adopted in this embodiment is one or more of the oiling mechanisms for valve guides disclosed in the above Embodiments 1 to 3. Handles 701 are further provided at both ends of the mounting plate 7, and the handles 701 are used for gripping and using the oiling tooling kit for valve guides to perform oiling. The oiling tooling kit for valve guides in this embodiment can oil multiple valve guides simultaneously due to the provision of multiple oiling mechanisms for valve guides on the mounting plate 7, effectively improving the working efficiency.
[0045] For example, the cylinder head of a certain model engine is provided with sixteen valve guides, which are divided into two rows with eight in each row. The valve guides are arranged at intervals, and the valve guides in the two rows are arranged in the same way. Therefore, eight oiling mechanisms for valve guides can be connected to the mounting plate 7 corresponding to the positions of the eight valve guides in one row. In this way, eight valve guides can be oiled simultaneously, and the oiling work for the sixteen valve guides can be completed only twice, effectively improving the working efficiency.
[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.
Claims
1. A valve guide oiling mechanism, characterized in that: include An oiling tube (1), the oiling tube (1) having an inner cavity (101) for containing engine oil and being provided with an oil outlet passage (102) communicating with the inner cavity (101), a limiting portion (103) being provided radially inside the oil outlet passage (102), the limiting portion (103) having an opening (1033) communicating with the oil outlet passage (102), the limiting portion (103) having a first surface (1032) and a second surface (1031) located at two ends of the opening (1033); An elastic connecting piece (2), wherein the elastic connecting piece (2) is connected inside the oil coating pipe (1); as well as A spherical member (3), the spherical member (3) being connected to one end of the elastic connecting member (2) so as to abut against a first surface (1032) of the opening (1033) and seal the oil outlet passage (102); the spherical member (3) is at least partially located on a second surface (1031), the second surface (1031) being used to abut against a valve guide, and the distance between the second surface (1031) and the end of the oil outlet passage (102) is the length of the portion of the valve guide that needs to be oiled.
2. The valve guide oiling mechanism according to claim 1, characterized in that: The inner diameter of the oil outlet channel (102) matches the outer diameter of the valve guide, and the radial length of the second surface (1031) is smaller than the wall thickness of the valve guide.
3. The valve guide oiling mechanism according to claim 2, characterized in that: The first surface (1032) is a conical surface, and the inner diameter of the conical surface gradually decreases from the first surface (1032) to the second surface (1031).
4. The valve guide oiling mechanism according to claim 1, characterized in that: It also comprises a fixing member (4), wherein the fixing member (4) is connected to the oil coating pipe (1), one end of the elastic connecting member (2) abuts against the fixing member (4), and the other end thereof abuts against the spherical member (3).
5. The valve guide oiling mechanism according to claim 4, characterized in that: The elastic connecting member (2) is a spring, one end of the spring abuts against one end of the fixing member (4), and the other end of the spring abuts against the spherical member (3).
6. The valve guide oiling mechanism according to claim 5, characterized in that: The spherical member (3) is connected to an elongated section (301), and the elongated section (301) passes through the spring assembly in the axial direction.
7. The valve guide oiling mechanism according to claim 4, characterized in that: A transition channel (104) is also provided between the inner cavity (101) of the oiling pipe (1) and the oil outlet channel (102); the fixing member (4) is detachably connected in the transition channel (104); and the fixing member (4) is provided with a through hole (401) for oil to flow through along the extension direction of the transition channel (104).
8. The valve guide oiling mechanism according to claim 7, characterized in that: The fixing member (4) is provided with an external thread, and the transition channel (104) is provided with an internal thread matching the external thread, and the external thread is threadably connected to the internal thread.
9. The valve guide oiling mechanism according to any one of claims 1 to 8, characterized in that: The oil coating tube (1) is also provided with an oil filling port (106), an end cover (5) is provided on the oil filling port (106), and a sealing ring (6) is provided between the end cover (5) and the oil coating tube (1).
10. A tool kit, characterized in that: It comprises a mounting plate (7) and at least one valve guide oiling mechanism as claimed in any one of claims 1 to 9, wherein each valve guide oiling mechanism is mounted on the mounting plate (7) facing the same direction, and the position of each valve guide oiling mechanism on the mounting plate (7) is configured so that each oil outlet channel (102) can be connected to different valve guides at the same time.