Engine valve lapping tool

Abstract

The application discloses an engine valve grinding tool, and solves the technical problems of low grinding efficiency and poor grinding quality of the engine valve. The grinding tool comprises a support seat for being fixed with an engine cylinder body; a support frame arranged on the support seat; a plurality of valve grinders arranged on the support frame, the plurality of valve grinders are respectively aligned with corresponding valves of the engine, and the valve grinders are used for grinding the valves; and an air inlet pipe group, one end of the air inlet pipe group is connected with the plurality of valve grinders respectively, and the other end of the air inlet pipe group is used for being connected with an external air source. The engine valve can be efficiently ground, the burden of workers can be reduced, the work efficiency can be improved, the grinding quality and the grinding qualification rate can be ensured.

Description

Technical Field

[0001] This invention belongs to the field of grinding and repair technology, and specifically relates to an engine valve grinding tool. Background Technology

[0002] Engine valves (also known as valves or valves) are key components in the valve train of an internal combustion engine, primarily responsible for controlling the engine's intake and exhaust processes. Currently, well workover equipment is mainly powered by CAT diesel engines, requiring regular overhauls to ensure performance and durability. Valve grinding is an important part of engine overhaul projects.

[0003] Traditional grinding methods typically involve manually holding a pneumatic grinder. Since the grinder lacks a dedicated handle, the operator must hold it by the air inlet and air intake adjustment knob, making it difficult to grip. Furthermore, the high-frequency vibration of the grinder during handheld operation causes misalignment and leveling, resulting in inconsistent grinding quality and a lower pass rate. Additionally, the method is time-consuming, labor-intensive, and can lead to operator fatigue, all of which require improvement. Summary of the Invention

[0004] In order to solve all or part of the above problems, the purpose of this invention is to provide an engine valve grinding tool that can achieve efficient grinding of engine valves, reduce the burden on workers, improve work efficiency, and ensure grinding quality and grinding pass rate.

[0005] This invention provides an engine valve grinding tool, comprising:

[0006] Support bracket, used to fix it to the engine block;

[0007] A support frame is mounted on the support base;

[0008] Multiple valve grinders are respectively mounted on the support frame, and the multiple valve grinders are respectively aligned with the corresponding valves of the engine and used to grind the valves.

[0009] The intake manifold is connected at one end to one of the valve grinders and at the other end to an external air source.

[0010] Optionally, the support base includes a horizontally arranged support ring, which is used to fit against the engine cylinder block. The support ring is provided with multiple limiting parts, which are used to fix the engine cylinder block.

[0011] Optionally, the outer contour of the support ring is rectangular and the inner contour is circular. The limiting part includes four magnetic bases, which are correspondingly arranged at the four corners of the support ring and used to magnetically fix it to the engine block.

[0012] Optionally, the support ring has clearance notches at its four corners, and the four magnetic gauge holders are respectively inserted into the corresponding clearance notches and welded to the support ring. The lower surface of the magnetic gauge holder is flush with the lower surface of the support ring.

[0013] Optionally, the support frame includes:

[0014] There are two support screws, each vertically mounted on the support ring;

[0015] The mounting plate is horizontally positioned above the support ring;

[0016] There are two first mounting holes, which are respectively provided on the mounting plate, and the two support screws pass through the corresponding first mounting holes;

[0017] There are multiple second mounting holes, each disposed on the mounting plate. The multiple valve grinders pass through the corresponding second mounting holes and are connected to the mounting plate.

[0018] There are two pairs of locking nuts, each threaded onto the corresponding support screw, and each pair of locking nuts clamps the mounting plate.

[0019] Optionally, the support ring is provided with two threaded holes, the bottom of the two support screws are respectively threaded to the corresponding threaded holes, and the bottom of the two support screws respectively pass through the corresponding threaded holes and are used for positioning and engaging with the mounting holes of the engine cylinder block.

[0020] Optionally, the support frame further includes:

[0021] A straightening plate is horizontally positioned above the mounting plate;

[0022] There are two first support holes, which are respectively provided on the straightening plate, and the two support screws pass through the corresponding first support holes;

[0023] There are multiple second support holes, each disposed on the straightening plate. Multiple valve grinders pass through the corresponding second support holes and are connected to the straightening plate.

[0024] There are two pairs of limiting nuts, each threadedly connected to the corresponding support screw, and each pair of limiting nuts clamps the straightening plate.

[0025] Optionally, a pair of lifting handles are symmetrically fixedly connected to the straightening plate.

[0026] Optionally, each of the valve grinders includes a grinding body, a grinding block is provided on the piston shaft of the grinding body, an air intake is provided on the top of the grinding body, and the air intake is connected to the air intake pipe assembly;

[0027] The upper end of the grinding machine body is provided with a first variable diameter positioning step surface and the lower end is provided with a second variable diameter positioning step surface. The first variable diameter positioning step surface abuts and limits the upper surface of the straightening plate, and the second variable diameter positioning step surface abuts and limits the upper surface of the mounting plate. The lower end of the grinding machine body is threaded with a clamping ring, and the clamping ring is used to press against the lower surface of the mounting plate.

[0028] Optionally, the intake pipe assembly includes a main intake pipe and multiple intake branch pipes, the main intake pipe and the multiple intake branch pipes are connected by a split connector, and the multiple intake branch pipes are respectively connected to the corresponding intake section.

[0029] The air intake section includes an air intake head, a regulating valve, and an air intake nozzle. The air intake head is connected to the top of the grinding machine body. The regulating valve and the air intake nozzle are respectively disposed on the air intake head. The air intake nozzle is vertically disposed and connected to the corresponding air intake branch pipe.

[0030] As can be seen from the above technical solution, the engine valve grinding tool provided by the present invention has the following advantages:

[0031] This grinding tool can achieve efficient grinding of engine valves, reduce the workload of workers, improve work efficiency, and ensure grinding quality and pass rate.

[0032] Other features and advantages of the present invention will be set forth in the following description. Attached Figure Description

[0033] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of the support base and support frame in an embodiment of the present invention;

[0036] Figure 3 This is a cross-sectional view of an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the valve grinder in an embodiment of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Support base; 11. Support ring; 12. Limiting part; 121. Magnetic gauge base; 13. Clearance notch; 2. Support frame; 21. Support screw; 22. Mounting plate; 23. First mounting hole; 24. Locking nut; 25. Second mounting hole; 26. Threaded hole; 27. Straightening plate; 28. First support hole; 29. ​​Limiting nut; 30. Second support hole; 3. Valve grinder; 31. Grinding machine body; 32. Grinding block; 33. Intake part; 331. Intake head; 332. Regulating valve; 333. Intake nozzle; 34. First variable diameter positioning step surface; 35. Second variable diameter positioning step surface; 36. Compression ring; 4. Intake pipe assembly; 41. Main intake pipe; 42. Branch intake pipe; 43. Air distribution connector; 5. Lifting handle; 6. Compression nut. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be arbitrarily combined with each other.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The illustration shows an embodiment of the present invention, which discloses an engine valve grinding tool, including a support base 1, a support frame 2, valve grinders 3, and an intake manifold assembly 4. The support base 1 is used to fix the engine block, and the support frame 2 is mounted on the support base 1. Multiple valve grinders 3 are provided, each mounted on the support frame 2. Each valve grinder 3 is aligned with a corresponding valve of the engine and used to grind the valve. This embodiment only shows the state of four valve grinders 3. One end of the intake manifold assembly 4 is connected to each of the valve grinders 3, and the other end is used to connect to an external air source.

[0042] The engine valve grinding tool in this embodiment can be installed on the engine block and grinds the corresponding valves separately using multiple valve grinders 3, thereby achieving efficient grinding of engine valves, reducing the workload of workers, and improving work efficiency. At the same time, the mechanized grinding operation results in smaller errors compared to manual grinding, ensuring grinding quality and a high pass rate, thus guaranteeing the engine's service life.

[0043] In one embodiment, such as Figure 1 , Figure 2 As shown, the support base 1 includes a horizontally arranged support ring 11, which is used to fit against the engine cylinder block. The support ring 11 is provided with a plurality of limiting parts 12, which are used to fix the engine cylinder block respectively.

[0044] In one embodiment, such as Figure 1 , Figure 2 As shown, the outer contour of the support ring 11 is rectangular and the inner contour is circular. The limiting part 12 includes four magnetic seats 121, which are correspondingly arranged at the four corners of the support ring 11 and are used to magnetically fix it to the engine cylinder block, so as to realize the quick connection and disassembly of the support seat 1 and the engine cylinder block.

[0045] In one embodiment, such as Figure 1 , Figure 2 As shown, the support ring 11 has clearance notches 13 at its four corners, and the four magnetic gauge holders 121 are respectively inserted into the corresponding clearance notches 13. The four magnetic gauge holders 121 are welded and fixed to the support ring 11. At the same time, the lower surface of the magnetic gauge holder 121 is flush with the lower surface of the support ring 11.

[0046] In one embodiment, such as Figure 2 , Figure 3 As shown, the support frame 2 includes two vertically and symmetrically arranged support screws 21, and the bottoms of the two support screws 21 are respectively connected to the support ring 11. A mounting plate 22 is horizontally arranged above the support ring 11, and the mounting plate 22 has two first mounting holes 23, through which the two support screws 21 pass. Each support screw 21 is screwed with a pair of locking nuts 24, and each pair of locking nuts 24 clamps the mounting plate 22, thereby fixing the mounting plate 22 to the support screws 21. The mounting plate 22 has multiple second mounting holes 25, through which multiple valve grinders 3 pass, and which are respectively connected to the mounting plate 22.

[0047] In one embodiment, such as Figure 2 , Figure 3 As shown, the support ring 11 has two threaded holes 26. The bottoms of the two support screws 21 are threadedly connected to the corresponding threaded holes 26. The bottoms of the two support screws 21 pass through the corresponding threaded holes 26 and are used for positioning and engagement with the mounting holes of the engine cylinder block, thereby achieving rapid positioning when the support ring 11 is connected to the engine cylinder block. At the same time, the bottoms of the two support screws 21 are threadedly connected to clamping nuts 6, which can abut and limit the movement against the upper surface of the support ring 11.

[0048] In one embodiment, such as Figure 2 , Figure 3As shown, the support frame 2 also includes a straightening plate 27 horizontally disposed above the mounting plate 22. The straightening plate 27 has two first support holes 28, which are aligned with two first mounting holes 23. Two support screws 21 pass through the corresponding first support holes 28. Each support screw 21 is threaded with a pair of limiting nuts 29, and each pair of limiting nuts 29 clamps the straightening plate 27, thereby fixing the straightening plate 27 to the support screws 21.

[0049] In one embodiment, such as Figure 2 , Figure 3 As shown, the straightening plate 27 is provided with multiple second support holes 30, which are aligned one-to-one with multiple second mounting holes 25. Multiple valve grinders 3 pass through the corresponding second support holes 30 and are connected to the straightening plate 27. At the same time, a pair of lifting handles 5 are symmetrically fixedly connected to the straightening plate 27 to facilitate the lifting, carrying and other operations of the grinding tools by the operator.

[0050] The valve grinder 3 is connected to the mounting plate 22 and the straightening plate 27 respectively, which straightens the valve grinder 3 and improves the connection stability of the valve grinder 3. At the same time, since the positions of the mounting plate 22 and the straightening plate 27 are adjustable, the grinding tool can be adapted to valve grinders 3 of different sizes, improving its adaptability.

[0051] In one embodiment, such as Figure 3 , Figure 4 As shown, each valve grinder 3 includes a grinding body 31, and a grinding block 32 is fixedly connected to the piston shaft of the grinding body 31. The grinding block 32 is used to grind the engine valves. At the same time, an air intake 33 is provided on the top of the grinding body 31, and the air intake 33 is connected to the air intake manifold 4.

[0052] In one embodiment, such as Figure 3 , Figure 4 As shown, the outer diameter of the grinding machine body 31 has a three-section tapering structure, so that the upper end of the grinding machine body 31 forms a first variable diameter positioning step surface 34 and the lower end forms a second variable diameter positioning step surface 35. The first variable diameter positioning step surface 34 abuts and limits the upper surface of the straightening plate 27, and the second variable diameter positioning step surface 35 abuts and limits the upper surface of the mounting plate 22. At the same time, a clamping ring 36 is threadedly fitted at the lower end of the grinding machine body 31, and the clamping ring 36 is used to press against the lower surface of the mounting plate 22. That is, the clamping ring 36 and the second variable diameter positioning step surface 35 together clamp the mounting plate 22.

[0053] In one embodiment, such as Figure 1 , Figure 4As shown, the intake manifold 4 includes an intake main pipe 41 and multiple intake branch pipes 42. The intake main pipe 41 and multiple intake branch pipes 42 are connected by a split connector 43, and the multiple intake branch pipes 42 are respectively connected to the corresponding intake section 33 so that multiple valve grinders 3 can open and close synchronously.

[0054] In one embodiment, such as Figure 1 , Figure 4 As shown, the air intake 33 includes an air intake head 331, a regulating valve 332, and an air intake nozzle 333. The air intake head 331 is connected to the top of the grinding machine body 31. The regulating valve 332 and the air intake nozzle 333 are respectively disposed on the air intake head 331. The air intake nozzle 333 is vertically disposed and connected to the corresponding air intake branch pipe 42 to facilitate the arrangement of components such as the air intake 33 and the air intake pipe assembly 4 by the operator.

[0055] As can be seen from the above process, the use of this grinding tool can achieve efficient grinding of engine valves, reduce the workload of workers, improve work efficiency, ensure grinding quality and grinding qualification rate, thereby extending the service life of diesel engines and enhancing the safety of well repair operations.

[0056] It should be noted that, unless otherwise stated, the technical or scientific terms used in this invention should have the ordinary meaning as understood by one of ordinary skill in the art.

[0057] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An engine valve grinding tool, characterized in that, include: Support base (1), used to fix it to the engine cylinder block; A support frame (2) is mounted on the support base (1); Multiple valve grinders (3) are respectively mounted on the support frame (2). The multiple valve grinders (3) are respectively aligned with the corresponding valves of the engine and used to grind the valves. The intake manifold (4) is connected at one end to a plurality of valve grinders (3) respectively, and at the other end to an external air source; The support base (1) includes a horizontally arranged support ring (11), and the support ring (11) is used to fit against the engine cylinder block. The support ring (11) is provided with a plurality of limiting parts (12), and the plurality of limiting parts (12) are respectively used to fix with the engine cylinder block. The outer contour of the support ring (11) is rectangular and the inner contour is circular. The limiting part (12) includes four magnetic bases (121). The four magnetic bases (121) are respectively arranged at the four corners of the support ring (11) and are used to magnetically fix it to the engine cylinder block. The support frame (2) includes: There are two support screws (21), each vertically mounted on the support ring (11); Mounting plate (22) is horizontally positioned above the support ring (11); There are two first mounting holes (23), which are respectively provided on the mounting plate (22), and the two support screws (21) pass through the corresponding first mounting holes (23); There are multiple second mounting holes (25) respectively on the mounting plate (22), and multiple valve grinders (3) pass through the corresponding second mounting holes (25) and are connected to the mounting plate (22); There are two pairs of locking nuts (24), each threadedly connected to the corresponding support screw (21), and each pair of locking nuts (24) clamps the mounting plate (22).

2. The engine valve grinding tool according to claim 1, characterized in that, The support ring (11) has clearance notches (13) at its four corners. The four magnetic gauge bases (121) are respectively inserted into the corresponding clearance notches (13) and welded to the support ring (11). The lower surface of the magnetic gauge base (121) is flush with the lower surface of the support ring (11).

3. The engine valve grinding tool according to claim 1, characterized in that, The support ring (11) is provided with two threaded holes (26). The bottom of the two support screws (21) are respectively threaded to the corresponding threaded holes (26). The bottom of the two support screws (21) passes through the corresponding threaded holes (26) and is used to position and cooperate with the mounting holes of the engine cylinder block.

4. The engine valve grinding tool according to claim 1, characterized in that, The support frame (2) also includes: A straightening plate (27) is horizontally positioned above the mounting plate (22); There are two first support holes (28), which are respectively provided on the straightening plate (27), and the two support screws (21) pass through the corresponding first support holes (28); There are multiple second support holes (30) respectively disposed on the straightening plate (27), and multiple valve grinders (3) pass through the corresponding second support holes (30) and are connected to the straightening plate (27); There are two pairs of limiting nuts (29), each threadedly connected to the corresponding support screw (21), and each pair of limiting nuts (29) clamps the straightening plate (27).

5. The engine valve grinding tool according to claim 4, characterized in that, A pair of lifting handles (5) are symmetrically fixedly connected to the straightening plate (27).

6. The engine valve grinding tool according to claim 4, characterized in that, Each of the valve grinders (3) includes a grinding body (31), a grinding block (32) is provided on the piston shaft of the grinding body (31), an air intake (33) is provided on the top of the grinding body (31), and the air intake (33) is connected to the air intake pipe assembly (4). The upper end of the grinding machine body (31) is provided with a first variable diameter positioning step surface (34) and the lower end is provided with a second variable diameter positioning step surface (35). The first variable diameter positioning step surface (34) abuts and limits the upper surface of the straightening plate (27), and the second variable diameter positioning step surface (35) abuts and limits the upper surface of the mounting plate (22). The lower end of the grinding machine body (31) is threaded with a clamping ring (36), and the clamping ring (36) is used to press against the lower surface of the mounting plate (22).

7. The engine valve grinding tool according to claim 6, characterized in that, The intake pipe assembly (4) includes an intake main pipe (41) and multiple intake branch pipes (42). The intake main pipe (41) and multiple intake branch pipes (42) are connected by a split connector (43), and the multiple intake branch pipes (42) are respectively connected to the corresponding intake section (33). The air intake section (33) includes an air intake head (331), a regulating valve (332), and an air intake nozzle (333). The air intake head (331) is connected to the top of the grinding machine body (31). The regulating valve (332) and the air intake nozzle (333) are respectively disposed on the air intake head (331). The air intake nozzle (333) is vertically disposed and connected to the corresponding air intake branch pipe (42).

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