Engine valve grinding tool

Abstract

The invention discloses an engine valve grinding tool which solves the technical problems that engine valves are low in grinding efficiency, poor in grinding quality and the like. The grinding tool comprises a supporting seat used for being fixed to an engine cylinder body; the supporting frame is arranged on the supporting seat; the plurality of valve grinders are respectively arranged on the support frame, and the plurality of valve grinders are respectively aligned with corresponding valves of the engine and are used for grinding the valves; one end of the air inlet pipe set is connected with the air valve grinders, and the other end of the air inlet pipe set is used for being connected with an external air source. Efficient grinding of the engine valve can be achieved, the burden of workers can be reduced, the operation time efficiency is improved, and the grinding quality and the grinding qualification rate are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding and maintenance, and in particular relates to an engine valve grinding tool. Background Art

[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 repair equipment is primarily powered by CAT diesel engines, which require regular overhauls to ensure performance and durability. Valve grinding is a crucial step in engine overhauls.

[0003] Traditional grinding methods typically use handheld pneumatic grinders. Since these grinders lack dedicated handles, they must be held by the air inlet and adjustment knob, making them difficult to control. Furthermore, the high-frequency vibrations of the handheld grinders can cause misalignment and leveling, resulting in inconsistent grinding quality and a lower pass rate. Furthermore, these methods are time-consuming, labor-intensive, and prone to operator fatigue, requiring further improvement. Summary of the Invention

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

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

[0006] A support base, used for fixing to the engine cylinder block;

[0007] A support frame, arranged on the support seat;

[0008] A plurality of valve grinders are respectively arranged on the support frame, wherein the plurality of valve grinders are respectively aligned with corresponding valves of the engine and are used to grind the valves;

[0009] An air intake pipe group has one end connected to the plurality of valve grinders respectively and the other end used for connecting to an external air source.

[0010] Optionally, the support seat includes a horizontally arranged support ring, and the support ring is used to be placed in close contact with the engine cylinder block. A plurality of limiting portions are provided on the support ring, and the plurality of limiting portions are respectively used to be fixed to the engine cylinder block.

[0011] Optionally, the outer contour of the support ring is rectangular and the inner contour is circular, and the limiting portion includes four magnetic seats, which are correspondingly arranged at the four corners of the support ring and are used to be magnetically fixed to the engine cylinder block.

[0012] Optionally, the four corners of the support ring are respectively provided with clearance notches, and the four magnetic meter seats are respectively inserted into the corresponding clearance notches and welded to the support ring, and the lower surface of the magnetic meter seat is flush with the lower surface of the support ring.

[0013] Optionally, the support frame includes:

[0014] Two supporting screws are vertically arranged on the supporting ring respectively;

[0015] A mounting plate is horizontally arranged above the support ring;

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

[0017] There are a plurality of second mounting holes, each of which is provided on the mounting plate. The valve grinders pass through the corresponding second mounting holes and are connected to the mounting plate.

[0018] There are two pairs of locking nuts, which are respectively threadedly connected to the corresponding support screws, and each pair of locking nuts clamps the mounting plate respectively.

[0019] Optionally, two threaded holes are provided on the support ring, and the bottoms of the two support screws are respectively threadedly connected to the corresponding threaded holes, and the bottoms of the two support screws pass through the corresponding threaded holes and are used to position and cooperate with the mounting holes of the engine cylinder block.

[0020] Optionally, the support frame further includes:

[0021] a straightening plate, horizontally arranged above the mounting plate;

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

[0023] There are a plurality of second support holes, each of which is provided on the centralizing plate. The valve grinders pass through the corresponding second support holes and are connected to the centralizing plate.

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

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

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

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

[0028] Optionally, the air intake pipe group includes an air intake main pipe and a plurality of air intake branch pipes, the air intake main pipe and the plurality of air intake branch pipes are connected via an air distribution joint, and the plurality of air intake branch pipes are respectively connected to corresponding air intake parts;

[0029] The air intake part 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 arranged on the air intake head. The air intake nozzle is vertically arranged 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 burden on workers, improve work efficiency, and ensure grinding quality and grinding qualification rate.

[0032] Other features and advantages of the present invention will be set forth in the description that follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation to the technical solution of the present invention.

[0034] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention;

[0035] Figure 2 Schematic diagram of the structure of the support base and the support frame in an embodiment of the present invention;

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

[0037] Figure 4 Schematic diagram of the structure of the valve grinder in an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1. Support seat; 11. Support ring; 12. Limiting part; 121. Magnetic table base; 13. Clearance gap; 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 supporting hole; 29. ​​Limiting nut; 30. Second supporting hole; 3. Valve grinder; 31. Grinding body; 32. Grinding block; 33. Intake part; 331. Intake head; 332. Regulating valve; 333. Intake nozzle; 34. First reducing positioning step surface; 35. Second reducing positioning step surface; 36. Clamping ring; 4. Intake pipe group; 41. Intake main pipe; 42. Intake branch pipe; 43. Gas distribution joint; 5. Lifting handle; 6. Clamping nut. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other in any manner.

[0041] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The figure shows an embodiment of the present invention, which discloses an engine valve grinding tool. The tool comprises a support base 1, a support frame 2, a valve grinder 3, and an intake manifold assembly 4. The support base 1 is secured to the engine cylinder 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 of the valve grinders 3 is aligned with a corresponding valve of the engine and used to grind the valves. This embodiment shows only four valve grinders 3. The intake manifold assembly 4 has one end connected to each of the valve grinders 3 and the other end connected to an external air source.

[0042] The engine valve grinding tool of this embodiment can be mounted on an engine cylinder block and, using multiple valve grinders 3, grinds corresponding valves individually, thereby achieving efficient engine valve grinding, reducing the burden on workers and improving work efficiency. Furthermore, the mechanized grinding process reduces errors compared to manual grinding, ensuring grinding quality and a high grinding pass rate, thereby extending the service life of the engine.

[0043] In one embodiment, Figure 1 、 Figure 2 As shown, the support seat 1 includes a horizontally arranged support ring 11, and the support ring 11 is used to be placed on the engine cylinder body. A plurality of limiting parts 12 are provided on the support ring 11, and the plurality of limiting parts 12 are respectively used to be fixed to the engine cylinder body.

[0044] In one embodiment, Figure 1 、 Figure 2 As shown, the outer contour of the support ring 11 is rectangular and the inner contour is circular. The limiting portion 12 includes four magnetic bases 121. The four magnetic bases 121 are correspondingly arranged at the four corners of the support ring 11 and are used to be magnetically fixed to the engine cylinder block to achieve rapid connection and disassembly of the support base 1 and the engine cylinder block.

[0045] In one embodiment, Figure 1 、 Figure 2 As shown, the four corners of the support ring 11 are respectively provided with clearance notches 13, and the four magnetic meter bases 121 are respectively inserted into the corresponding clearance notches 13, and the four magnetic meter bases 121 are welded and fixed to the support ring 11. At the same time, the lower surface of the magnetic meter base 121 is flush with the lower surface of the support ring 11.

[0046] In one embodiment, 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 two first mounting holes 23 are provided on the mounting plate 22, and the two support screws 21 pass through the corresponding first mounting holes 23 respectively. A pair of locking nuts 24 are screwed to each support screw 21, and each pair of locking nuts 24 clamps the mounting plate 22 respectively, thereby achieving the fixation of the mounting plate 22 and the support screw 21. A plurality of second mounting holes 25 are provided on the mounting plate 22, and a plurality of valve grinders 3 pass through the corresponding second mounting holes 25 respectively, and the plurality of valve grinders 3 are respectively connected to the mounting plate 22.

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

[0048] In one embodiment, Figure 2 、 Figure 3As shown, the support frame 2 also includes a centralizing plate 27 horizontally disposed above the mounting plate 22. The centralizing plate 27 is provided with two first support holes 28, which are aligned one-to-one with the two first mounting holes 23. The two support screws 21 extend through the corresponding first support holes 28. A pair of limiting nuts 29 are threadedly connected to each support screw 21, and each pair of limiting nuts 29 clamps the centralizing plate 27, thereby securing the centralizing plate 27 to the support screws 21.

[0049] In one embodiment, Figure 2 、 Figure 3 As shown, the centralizing plate 27 is provided with a plurality of second support holes 30, which are aligned one-to-one with the plurality of second mounting holes 25. The plurality of valve grinders 3 pass through the corresponding second support holes 30 and are respectively connected to the centralizing plate 27. Furthermore, a pair of lifting handles 5 are symmetrically fixedly connected to the centralizing plate 27 to facilitate operations such as lifting and carrying the grinding tools.

[0050] The valve grinder 3 is connected to the mounting plate 22 and the centering plate 27, respectively, to achieve centering of the valve grinder 3 and improve the connection stability of the valve grinder 3. At the same time, because the positions of the mounting plate 22 and the centering plate 27 can be adjusted, the grinding tool can be adapted to valve grinders 3 of different sizes, improving its adaptability.

[0051] In one embodiment, Figure 3 、 Figure 4 As shown, each valve grinder 3 includes a grinding body 31, with a grinding block 32 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 portion 33 is provided on the top of the grinding body 31, and the air intake portion 33 is connected to the intake pipe group 4.

[0052] In one embodiment, Figure 3 、 Figure 4 As shown, the outer diameter of the grinding machine body 31 has a three-stage tapering structure, forming a first reducing step surface 34 at the upper end and a second reducing step surface 35 at the lower end. The first reducing step surface 34 abuts against the upper surface of the centralizing plate 27 for position retention, while the second reducing step surface 35 abuts against the upper surface of the mounting plate 22 for position retention. Furthermore, a clamping ring 36 is threadedly mounted on the lower end of the grinding machine body 31, and is used to abut against the lower surface of the mounting plate 22. In other words, the clamping ring 36 and the second reducing step surface 35 jointly clamp the mounting plate 22.

[0053] In one embodiment, Figure 1 、 Figure 4As shown, the intake pipe group 4 includes an intake main pipe 41 and multiple intake branch pipes 42. The intake main pipe 41 and the multiple intake branch pipes 42 are connected through an air distribution joint 43, and the multiple intake branch pipes 42 are respectively connected to the corresponding intake parts 33, so that multiple valve grinders 3 can be opened and closed synchronously.

[0054] In one embodiment, Figure 1 、 Figure 4 As shown, the air intake part 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 arranged on the air intake head 331. The air intake nozzle 333 is vertically arranged and connected to the corresponding air intake branch pipe 42 to facilitate the staff to arrange the air intake part 33, the air intake pipe group 4 and other components.

[0055] From the above process, it can be seen that the use of this grinding tool can achieve efficient grinding of engine valves, reduce the burden on staff, improve operation time, ensure grinding quality and grinding pass rate, thereby extending the service life of the diesel engine and enhancing the safety of well repair operations.

[0056] It should be noted that, unless otherwise specified, the technical or scientific terms used in the present invention should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0057] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present invention, "plurality" means more than two, unless otherwise specifically defined.

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

Claims

1. An engine valve grinding tool, characterized in that: include: A support base (1) is used for fixing to the engine cylinder block; A support frame (2) is arranged on the support base (1); A plurality of valve grinders (3) are respectively arranged on the support frame (2), and the plurality of valve grinders (3) are respectively aligned with corresponding valves of the engine and are used to grind the valves; An air intake pipe group (4) has one end connected to the plurality of valve grinders (3) respectively, and the other end used for connecting to an external air source.

2. The engine valve grinding tool according to claim 1, characterized in that: The support seat (1) comprises a horizontally arranged support ring (11), and the support ring (11) is used to be placed in close contact with the engine cylinder body. The support ring (11) is provided with a plurality of limiting portions (12), and the plurality of limiting portions (12) are respectively used to be fixed to the engine cylinder body.

3. The engine valve grinding tool according to claim 2, characterized in that: The outer contour of the support ring (11) is rectangular and the inner contour is circular. The limiting portion (12) includes four magnetic meter seats (121). The four magnetic meter seats (121) are correspondingly arranged at the four corners of the support ring (11) and are used for magnetic attraction and fixation with the engine cylinder body.

4. The engine valve grinding tool according to claim 3, characterized in that: The support ring (11) is provided with clearance notches (13) at the four corners thereof, and the four magnetic meter seats (121) are respectively inserted into the corresponding clearance notches (13) and welded to the support ring (11), and the lower surface of the magnetic meter seat (121) is flush with the lower surface of the support ring (11).

5. The engine valve grinding tool according to claim 2, characterized in that: The support frame (2) comprises: Two supporting screws (21) are respectively and vertically arranged on the supporting ring (11); A mounting plate (22) is horizontally arranged above the support ring (11); Two first mounting holes (23) are respectively provided on the mounting plate (22), and the two support screws (21) respectively pass through the corresponding first mounting holes (23); A plurality of second mounting holes (25) are respectively provided on the mounting plate (22); a plurality of the valve grinders (3) respectively pass through the corresponding second mounting holes (25) and are connected to the mounting plate (22); The locking nuts (24) are in two pairs and are respectively threadedly connected to the corresponding support screws (21). Each pair of the locking nuts (24) clamps the mounting plate (22).

6. The engine valve grinding tool according to claim 5, characterized in that: Two threaded holes (26) are provided on the support ring (11), and the bottoms of the two support screws (21) are respectively threadedly connected to the corresponding threaded holes (26). The bottoms of the two support screws (21) respectively pass through the corresponding threaded holes (26) and are used to position and cooperate with the mounting holes of the engine cylinder body.

7. The engine valve grinding tool according to claim 5, characterized in that: The support frame (2) further comprises: a straightening plate (27) horizontally arranged above the mounting plate (22); Two first support holes (28) are respectively provided on the centralizing plate (27), and the two support screws (21) respectively pass through the corresponding first support holes (28); A plurality of second support holes (30) are respectively provided on the centralizing plate (27); a plurality of the valve grinders (3) respectively pass through the corresponding second support holes (30) and are connected to the centralizing plate (27); The limiting nuts (29) are in two pairs and are respectively threadedly connected to the corresponding support screws (21). Each pair of the limiting nuts (29) clamps the centralizing plate (27).

8. The engine valve grinding tool according to claim 7, characterized in that: A pair of lifting handles (5) are symmetrically fixedly connected to the straightening plate (27).

9. The engine valve grinding tool according to claim 7, characterized in that: Each valve grinder (3) comprises a grinding body (31), a grinding block (32) is provided on the piston shaft of the grinding body (31), an air intake portion (33) is provided on the top of the grinding body (31), and the air intake portion (33) is connected to the air intake pipe group (4); The upper end of the grinding machine body (31) is provided with a first diameter-changing positioning step surface (34), and the lower end is provided with a second diameter-changing positioning step surface (35). The first diameter-changing positioning step surface (34) is abutted and limited with the upper surface of the straightening plate (27), and the second diameter-changing positioning step surface (35) is abutted and limited with the upper surface of the mounting plate (22). The lower end threaded sleeve of the grinding machine body (31) is provided with a clamping ring (36), and the clamping ring (36) is used to clamp the lower surface of the mounting plate (22).

10. The engine valve grinding tool according to claim 9, characterized in that: The air intake pipe group (4) includes an air intake main pipe (41) and a plurality of air intake branch pipes (42), the air intake main pipe (41) and the plurality of air intake branch pipes (42) are connected via an air distribution joint (43), and the plurality of air intake branch pipes (42) are respectively connected to corresponding air intake parts (33); The air intake portion (33) comprises 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 arranged on the air intake head (331); the air intake nozzle (333) is vertically arranged and connected to the corresponding air intake branch pipe (42).

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