Diesel engine valve seat sealing surface grinding device

Abstract

The utility model provides a diesel engine valve seat sealing surface grinding device which solves the problems that the labor intensity is high and the working efficiency is low when a valve seat sealing surface is manually ground by abrasive paper. One end of the mounting shaft is provided with a power device for driving the mounting shaft to rotate; the limiting part is arranged at the other end of the mounting shaft; the limiting plate is arranged on the mounting shaft; the grinding wheel is arranged on the mounting shaft and is positioned between the limiting plate and the limiting part; and the fastener is used for acting on the limiting plate, and the fastener is matched with the mounting shaft. The power device is an electric drill, the fastening piece acts on the limiting plate, the grinding wheel is limited between the limiting plate and the limiting part, then the mounting shaft is mounted on the electric drill, the electric drill is started to enable the grinding wheel to act on the grinding surface to grind the sealing surface of the valve seat, and the device can effectively improve the working efficiency and reduce the working intensity.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine valve seat processing, in particular to a diesel engine valve seat sealing surface grinding device. Background Art

[0002] The intake and exhaust valves of diesel engines are important parts of the diesel engine valve system. During the operation of the diesel engine, they are opened or closed at the specified time and sequence to allow as much fresh air as possible to enter the cylinder and exhaust the exhaust gas from the cylinder, thereby ensuring the continuous operation of the diesel engine. The sealing performance of the valve seat and the air valve of the diesel engine is one of the important indicators of the diesel engine. Once there is air leakage between the valve seat and the air valve, it will affect the normal operation of the diesel engine. At present, the matching surface shell of the air valve and the valve seat is processed or repaired by machine tools, and the sealing surface of the valve seat is generally ground by manual sandpaper grinding, but the manual sandpaper grinding method is not only labor-intensive, but also has low work efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology, the utility model provides a diesel engine valve seat sealing surface grinding device, which solves the problem that grinding the valve seat sealing surface with artificial sandpaper is not only labor-intensive but also has low work efficiency.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A diesel engine valve seat sealing surface grinding device, comprising:

[0006] The installation shaft has a power device at one end for driving the installation shaft to rotate;

[0007] A limiting portion is arranged at the other end of the mounting shaft;

[0008] A limit plate, arranged on the mounting shaft;

[0009] A grinding wheel is arranged on the mounting shaft and is located between the limiting plate and the limiting portion;

[0010] The fastener is used to act on the limit plate, and the fastener cooperates with the installation shaft.

[0011] The installation shaft is provided with a threaded portion, and the fastener is an adjusting nut.

[0012] At least one pair of No. 1 flat surfaces is circumferentially arranged at one end of the installation shaft that cooperates with the power device.

[0013] The other end of the limiting part is provided with a positioning shaft for cooperating with the valve seat guide sleeve hole.

[0014] The surface of the positioning shaft is provided with a chrome-plated layer.

[0015] A transition shaft is provided between the limiting portion and the positioning shaft, and at least one pair of No. 2 planes is provided in the circumferential direction of the transition shaft.

[0016] The limiting portion is conical, and the diameter of the limiting portion gradually decreases in a direction away from the grinding wheel.

[0017] The beneficial effects of the utility model are:

[0018] The power device is an electric drill. The fastener acts on the limit plate to limit the grinding wheel between the limit plate and the limit part, and then the mounting shaft is installed on the electric drill. By starting the electric drill, the grinding wheel acts on the grinding surface to grind the valve seat sealing surface. This device can effectively improve work efficiency and reduce work intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the utility model.

[0020] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0021] Install the shaft 1, the limiting part 2, the limiting plate 3, the grinding wheel 4, the fastener 5, the threaded part 6, the No. 1 plane 7, the positioning shaft 8, the chrome-plated layer 9, the transition shaft 10, and the No. 2 plane 11. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] In the embodiment, Figure 1 , Figure 2 As shown, the diesel engine valve seat sealing surface grinding device comprises:

[0024] The installation shaft 1 has a power device at one end for driving the installation shaft 1 to rotate;

[0025] The limiting part 2 is arranged at the other end of the mounting shaft 1;

[0026] A limit plate 3 is arranged on the mounting shaft 1;

[0027] The grinding wheel 4 is arranged on the mounting shaft 1 and is located between the limiting plate 3 and the limiting portion 2;

[0028] The fastener 5 is used to act on the limit plate 3 , and the fastener 5 cooperates with the installation shaft 1 .

[0029] The power device is an electric drill, and the grinding wheel 4 is a grinding wheel. The fastener 5 acts on the limit plate 3 to limit the grinding wheel 4 between the limit plate 3 and the limit part 2, and then the mounting shaft 1 is installed on the electric drill. By starting the electric drill, the grinding wheel 4 acts on the grinding surface to grind the valve seat sealing surface. The device can effectively improve work efficiency and reduce work intensity.

[0030] In the embodiment, Figure 1 , Figure 2 As shown, the installation shaft 1 is provided with a threaded portion 6, and the fastener 5 is an adjusting nut. The limiting plate 3 can be tightened or loosened by rotating the adjusting nut, which is convenient for adjustment.

[0031] In the embodiment, Figure 1 As shown, the end of the installation shaft 1 that cooperates with the power device is circumferentially provided with at least one pair of No. 1 flat surfaces 7. The No. 1 flat surfaces 7 make it easy for the chuck of the electric drill to clamp the installation shaft 1, and it is not easy to separate from the electric drill during operation.

[0032] In the embodiment, Figure 1 , Figure 2 As shown, the other end of the limit portion 2 is provided with a positioning shaft 8 for cooperating with the valve seat guide sleeve hole. The positioning shaft 8 cooperates with the valve seat guide sleeve hole to ensure the concentricity of the grinding wheel 4 and the grinding surface to ensure the grinding effect.

[0033] In the embodiment, Figure 2 As shown, the surface of the positioning shaft 8 is provided with a chrome-plated layer 9. The hardness and wear resistance of the positioning shaft 8 are increased, the positioning shaft 8 is not easily worn, and the service life of the positioning shaft 8 is ensured.

[0034] In the embodiment, Figure 1 As shown, a transition shaft 10 is provided between the position-limiting portion 2 and the positioning shaft 8, and at least one pair of second flat surfaces 11 is provided in the circumference of the transition shaft 10. The second flat surfaces 11 are convenient for gripping or clamping, and the fastener 5 is easy to screw.

[0035] In the embodiment, Figure 1 , Figure 2 As shown, the limiting portion 2 is conical, and the diameter of the limiting portion 2 gradually decreases in the direction away from the grinding wheel 4. The weight of the limiting portion 2 is reduced as much as possible to facilitate the power device to drive the installation shaft 1 to rotate.

[0036] Obviously, the above embodiments of the present invention are merely examples for illustrating the present invention, and are not intended to limit the implementation methods of the present invention. 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 provide all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still fall within the scope of protection of the present invention.

Claims

1. A diesel engine valve seat sealing surface grinding device, characterized in that: include: The installation shaft (1) has a power device at one end for driving the installation shaft (1) to rotate; A limiting portion (2) is arranged at the other end of the mounting shaft (1); A limit plate (3) is arranged on the mounting shaft (1); A grinding wheel (4) is arranged on the mounting shaft (1) and is located between the limiting plate (3) and the limiting portion (2); The fastener (5) is used to act on the limit plate (3), and the fastener (5) cooperates with the installation shaft (1).

2. The diesel engine valve seat sealing surface grinding device according to claim 1, characterized in that: The installation shaft (1) is provided with a threaded portion (6), and the fastener (5) is an adjusting nut.

3. The diesel engine valve seat sealing surface grinding device according to claim 1, characterized in that: At least one pair of No. 1 flat surfaces (7) are circumferentially arranged at one end of the installation shaft (1) that cooperates with the power device.

4. The diesel engine valve seat sealing surface grinding device according to claim 1, characterized in that: The other end of the limiting portion (2) is provided with a positioning shaft (8) for cooperating with the valve seat guide sleeve hole.

5. The diesel engine valve seat sealing surface grinding device according to claim 4, characterized in that: The surface of the positioning shaft (8) is provided with a chrome-plated layer (9).

6. The diesel engine valve seat sealing surface grinding device according to claim 4, characterized in that: A transition shaft (10) is provided between the limiting portion (2) and the positioning shaft (8), and at least one pair of No. 2 planes (11) is provided in the circumferential direction of the transition shaft (10).

7. The diesel engine valve seat sealing surface grinding device according to claim 1, characterized in that: The limiting portion (2) is conical, and the diameter of the limiting portion (2) gradually decreases in a direction away from the grinding wheel (4).

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