A tool for grinding valve seats

Abstract

The application discloses a special tool for valve seat grinding, and relates to the technical field of valve seat grinding, which comprises a fixing support, a guide seat is arranged on the top of the fixing support, and two fixing bolts are symmetrically arranged at the two ends of the fixing support; a guide sleeve is arranged on the inner side of the guide seat, two limiting screws are symmetrically arranged on the two sides of the guide seat; a movable nut is arranged on the top of the guide sleeve, an anti-coming-off nut is arranged on the bottom of the guide sleeve, and a connecting rod is arranged on the inner side of the guide sleeve; a spring part is arranged on the side, close to the anti-coming-off nut, of the movable nut; a pressing plate is arranged on the bottom of the connecting rod and passes through the anti-coming-off nut; sandpaper is arranged on the bottom of the pressing plate; a pressing gasket is arranged on the bottom of the sandpaper; and a pressing nut is arranged on the bottom of the pressing gasket. Through the above structure, the application can avoid the influence of the working environment, reduce the valve seat grinding processing difficulty, save the labor and time of workers, improve the work efficiency, tightly press the pressing plate and the sandpaper, discharge the debris, and avoid the slippage of the sandpaper.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve seat grinding, in particular to a special tool for valve seat grinding. BACKGROUND

[0002] With the progress and development of society, the number of ships used for transportation is increasing, so the number of ships that need to be maintained and repaired is also increasing. Almost every ship repair has valve system repair engineering. No matter it is an external wrench or a dock clamp repair valve system, the repair quality is particularly critical, especially the quality of the dock clamp repair valve system directly affects the dock period of the ship, and most of the valve system repair needs to be ground before being delivered for inspection to ensure quality.

[0003] The existing valve system grinding process is usually manually ground, which greatly consumes the physical strength and time of workers, and when the dock clamp valve system is ground, since it is ground on site, it is easily affected by the working environment and space, thereby increasing the difficulty of grinding. In addition, during the grinding process, a large amount of metal debris is generated by the friction between the sandpaper and the valve seat, and if the metal debris is not discharged in time, it may cause the sandpaper to slip, affecting the grinding effect and efficiency. Therefore, we propose a special tool for valve seat grinding to solve the above-mentioned problems. SUMMARY

[0004] The purpose of the present application is to provide a special tool for valve seat grinding to solve the problem of the existing valve system grinding process, which is usually manually ground, which greatly consumes the physical strength and time of workers, and when the dock clamp valve system is ground, since it is ground on site, it is easily affected by the working environment and space, thereby increasing the difficulty of grinding. In addition, during the grinding process, a large amount of metal debris is generated by the friction between the sandpaper and the valve seat, and if the metal debris is not discharged in time, it may cause the sandpaper to slip, affecting the grinding effect and efficiency.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A special tool for valve seat grinding, comprising a fixed support, the top of the fixed support is provided with a guide seat, the two ends of the fixed support are symmetrically provided with two fixed bolts, the inner side of the guide seat is provided with a guide sleeve, the two sides of the guide seat are symmetrically provided with two limiting screws, the top of the guide sleeve is provided with a movable nut, the bottom of the guide sleeve is provided with an anti-loose nut, the inner side of the guide sleeve is provided with a connecting rod, the side of the movable nut close to the anti-loose nut is provided with a spring part, the bottom of the connecting rod is provided with a pressing plate through the anti-loose nut, the bottom of the pressing plate is provided with sandpaper, the bottom of the sandpaper is provided with a pressing gasket, and the bottom of the pressing gasket is provided with a pressing nut.

[0007] The pressing plate is internally provided with a limiting groove, and two pressing plate chip removal grooves are symmetrically arranged at the two ends of the bottom of the pressing plate; a plurality of pressing grooves are uniformly arranged on the two sides of the two chip removal grooves around the axis.

[0008] Further, the two ends of the fixed support are symmetrically provided with two waist-shaped grooves.

[0009] Further, the bottom of the guide seat is fixedly connected with the fixed support, and the two fixed bolts comprise a bolt, one end of the bolt is provided with a fixed nut through the waist-shaped groove, the bolt is slidably connected with the fixed support through the waist-shaped groove, and the fixed nut is threadedly connected with the bolt.

[0010] Further, the guide sleeve is slidably connected with the guide seat, and the two limiting screws are threadedly connected with the two sides of the guide seat respectively; the limiting screw is tightly attached to the guide sleeve through the guide seat.

[0011] Further, the outer side of the movable nut is threadedly connected with the guide sleeve, and the outer side of the anti-escape nut is threadedly connected with the guide sleeve.

[0012] Further, the connecting rod comprises a rod body, the rod body is provided with a rod nut at the top of the rod body, a rod shoulder is arranged on the rod body, a limiting pin is arranged at the bottom of the rod body through the anti-escape nut, the top of the rod body is rotatably connected with the movable nut, the bottom of the rod body is rotatably connected with the anti-escape nut, the rod nut is fixedly connected with the rod body, the rod shoulder is fixedly connected with the rod body, and the limiting pin is fixedly connected with the rod body.

[0013] Further, the spring component comprises two friction washers, a spring is arranged on one side of the two friction washers close to each other, one friction washer is fixedly connected with the rod shoulder, and the inner side of the other friction washer is slidably connected with the rod body; the two ends of the spring are fixedly connected with the two friction washers respectively, and the pressing plate is slidably connected with the limiting pin through the limiting groove.

[0014] Further, the sandpaper is symmetrically provided with two sandpaper chip removal grooves on the two sides, the sandpaper is slidably connected with the rod body, the pressing pad comprises a mounting pad, a plurality of arc-shaped pressing rods are uniformly arranged on the top of the mounting pad around the axis, the inner side of the mounting pad is slidably connected with the rod body, and the plurality of arc-shaped pressing rods are fixedly connected with the mounting pad.

[0015] Further, the inner side of the pressing nut is threadedly connected with the rod body, and the top of the pressing nut is tightly attached to the mounting pad.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] 1. The present application sets up a fixed support, fixes the guide sleeve inside the top guide seat, facilitates the electric wrench to drive the connecting rod to rotate, in turn drives the connecting rod bottom pressing plate to rotate, further drives the sandpaper fixed at the bottom of the pressing plate to rotate, grinds and processes the valve seat, avoids the influence of the working environment and space, reduces the difficulty of grinding and processing different specifications of valve seats, saves the labor and time of workers, and improves the work efficiency.

[0018] 2. The present application tightens the pressing nut, in turn tightens the pressing gasket, so that a plurality of arc-shaped pressing rods on the mounting gasket press the sandpaper into the plurality of pressing grooves at the bottom of the pressing plate, in turn fix the sandpaper, avoid the sandpaper slipping during grinding, at the same time, the pressing plate scrap slot at both ends of the pressing plate and the sandpaper scrap slot at both ends of the sandpaper can quickly discharge the metal chips generated during grinding, avoid the sandpaper slipping, and affect the grinding effect and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic diagram of the present application;

[0020] Figure 2 It is the side installation structure schematic diagram of the present application;

[0021] Figure 3 It is the guide seat installation structure schematic diagram of the present application;

[0022] Figure 4 It is the spring part installation structure schematic diagram of the present application;

[0023] Figure 5 It is the pressing plate installation structure schematic diagram of the present application;

[0024] Figure 6 It is the connecting rod structure schematic diagram of the present application;

[0025] Figure 7 It is the pressing nut structure schematic diagram of the present application;

[0026] Figure 8 It is the pressing plate structure schematic diagram of the present application;

[0027] Figure 9 It is the sandpaper structure schematic diagram of the present application;

[0028] Figure 10 It is the pressing gasket structure schematic diagram of the present application;

[0029] Fig. 1 is a fixed support; 101, a waist-shaped groove; 2, a guide seat; 3, a fixed bolt; 301, a bolt; 302, a fixed nut; 4, a guide sleeve; 5, a limiting screw; 6, a movable nut; 7, an anti-loosening nut; 8, a connecting rod; 801, a rod body; 802, a rod body nut; 803, a rod shoulder; 804, a limiting pin; 9, a spring component; 901, a friction washer; 902, a spring; 10, a pressing plate; 1001, a limiting groove; 1002, a pressing plate chip removal groove; 1003, a pressing groove; 11, sandpaper; 1101, a sandpaper chip removal groove; 12, a pressing washer; 1201, a mounting washer; 1202, an arc-shaped pressing rod; 13, a pressing nut. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Embodiment 1:

[0032] Please refer to Figures 1-6 The present application provides a technical solution: a valve seat grinding special tool, comprising a fixed support 1, the top of the fixed support 1 is provided with a guide seat 2, the two ends of the fixed support 1 are symmetrically provided with two fixed bolts 3, the inner side of the guide seat 2 is provided with a guide sleeve 4, the two sides of the guide seat 2 are symmetrically provided with two limiting screws 5, the top of the guide sleeve 4 is provided with a movable nut 6, the bottom of the guide sleeve 4 is provided with an anti-loosening nut 7, the inner side of the guide sleeve 4 is provided with a connecting rod 8, the side of the movable nut 6 close to the anti-loosening nut 7 is provided with a spring component 9, the bottom of the connecting rod 8 is provided with a pressing plate 10 through the anti-loosening nut 7, the bottom of the pressing plate 10 is provided with sandpaper 11, the bottom of the sandpaper 11 is provided with a pressing washer 12, and the bottom of the pressing washer 12 is provided with a pressing nut 13.

[0033] The two ends of the fixed support 1 are symmetrically provided with two waist-shaped grooves 101. In this example, by providing two waist-shaped grooves 101, two fixed bolts 3 are conveniently installed, thereby fixing the fixed support 1 tightly, and facilitating grinding processing.

[0034] The bottom of the guide seat 2 is fixedly connected with the fixed support 1, and the two fixed bolts 3 comprise a bolt 301, one end of the bolt 301 is provided with a fixed nut 302 through the waist-shaped groove 101, the bolt 301 is slidably connected with the fixed support 1 through the waist-shaped groove 101, and the fixed nut 302 is threadedly connected with the bolt 301. In this example, by providing the guide seat 2, the guide sleeve 4 is conveniently installed, and the stability of grinding processing is ensured.

[0035] The guide sleeve 4 is in sliding connection with the guide seat 2, two limiting screws 5 are respectively in threaded connection with two sides of the guide seat 2, and the limiting screws 5 are tightly attached to the guide sleeve 4 through the guide seat 2. In the example, the two limiting screws 5 are arranged to facilitate the disassembly and assembly of the guide sleeve 4.

[0036] The outer side of the movable nut 6 is in threaded connection with the guide sleeve 4, and the outer side of the anti-loosening nut 7 is in threaded connection with the guide sleeve 4. In the example, the movable nut 6 is arranged to compress the spring part 9, thereby compressing the sandpaper 11 at the bottom of the bottom pressing plate 10, and better grinding processing is achieved.

[0037] The connecting rod 8 comprises a rod body 801, the top of the rod body 801 is provided with a rod nut 802 through the movable nut 6, the rod body 801 is provided with a rod shoulder 803, the bottom of the rod body 801 is provided with a limiting pin 804 through the anti-loosening nut 7, the top of the rod body 801 is in rotational connection with the movable nut 6, the bottom of the rod body 801 is in rotational connection with the anti-loosening nut 7, the rod nut 802 is fixedly connected with the rod body 801, the rod shoulder 803 is fixedly connected with the rod body 801, and the limiting pin 804 is fixedly connected with the rod body 801. In the example, the limiting pin 804 is arranged to facilitate the installation and fixation of the pressing plate 10, and to avoid the pressing plate 10 from slipping during the grinding process, thereby affecting the grinding effect and efficiency.

[0038] The spring part 9 comprises two friction washers 901, the two friction washers 901 are provided with a spring 902 on the side close to each other, one friction washer 901 is fixedly connected with the rod shoulder 803, the inner side of the other friction washer 901 is in sliding connection with the rod body 801, the two ends of the spring 902 are respectively fixedly connected with the two friction washers 901, and the pressing plate 10 is in sliding connection with the limiting pin 804 through the limiting groove 1001. In the example, the spring part 9 is arranged to compress the sandpaper 11 downward, thereby facilitating better grinding processing.

[0039] Working principle: the anti-loosening nut 7 is tightened at the bottom of the guide sleeve 4, the guide sleeve 4 is then passed through the guide seat 2 and adjusted to the appropriate height, the two limiting screws 5 at both ends are tightened, thereby fixing the guide sleeve 4, the connecting rod 8 is passed through the anti-loosening nut 7, the inner side limiting groove 1001 of the pressing plate 10 is aligned with the limiting pin 804 at the bottom of the rod body 801 and inserted, the sandpaper 11 is then installed, the compression nut 13 is tightened, the multiple arc-shaped pressing rods 1202 on the installation washer 1201 compress the sandpaper 11 into the multiple pressing grooves 1003, thereby fixing the pressing plate 10 and the sandpaper 11, the guide seat 2 is aligned with the connecting rod 8 and inserted, the two bolts 301 are sequentially passed through the flange of the valve seat and the two waist-shaped grooves 101 on the fixed support 1, the two fixed nuts 302 are tightened, thereby tightly fixing the fixed support 1, the movable nut 6 is then tightened, the spring part 9 is compressed, the bottom sandpaper 11 is tightly attached to the valve seat, the electric wrench drives the connecting rod 8 to rotate, thereby driving the sandpaper 11 at the bottom of the pressing plate 10 to grind and process the valve seat.

[0040] Embodiment 2:

[0041] Please refer to Figures 7-10 The application provides a technical scheme: a valve seat grinding special tool, which comprises a fixed support 1, the top of the fixed support 1 is provided with a guide seat 2, the two ends of the fixed support 1 are symmetrically provided with two fixed bolts 3, the inner side of the guide seat 2 is provided with a guide sleeve 4, the two sides of the guide seat 2 are symmetrically provided with two limiting screws 5, the top of the guide sleeve 4 is provided with a movable nut 6, the bottom of the guide sleeve 4 is provided with an anti-loosening nut 7, the inner side of the guide sleeve 4 is provided with a connecting rod 8, the side of the movable nut 6 close to the anti-loosening nut 7 is provided with a spring part 9, the bottom of the connecting rod 8 penetrates through the anti-loosening nut 7 and is provided with a pressing plate 10, the bottom of the pressing plate 10 is provided with an abrasive paper 11, the bottom of the abrasive paper 11 is provided with a pressing gasket 12, and the bottom of the pressing gasket 12 is provided with a pressing nut 13.

[0042] The inner side of the pressing plate 10 is provided with a limiting groove 1001, and the two ends of the bottom of the pressing plate 10 are symmetrically provided with two pressing plate chip removal grooves 1002, and a plurality of pressing grooves 1003 are uniformly arranged on the two sides of the two chip removal grooves around the axis.

[0043] The connecting rod 8 comprises a rod body 801, the top of the rod body 801 penetrates through the movable nut 6 and is provided with a rod body nut 802, the rod body 801 is provided with a rod shoulder 803, the bottom of the rod body 801 penetrates through the anti-loosening nut 7 and is provided with a limiting pin 804, the top of the rod body 801 is rotationally connected with the movable nut 6, the bottom of the rod body 801 is rotationally connected with the anti-loosening nut 7, the rod body nut 802 is fixedly connected with the rod body 801, the rod shoulder 803 is fixedly connected with the rod body 801, and the limiting pin 804 is fixedly connected with the rod body 801. In this example, the rod body nut 802 is arranged, so that the electric wrench can drive the connecting rod 8 to rotate, and the grinding process is facilitated.

[0044] The two sides of the abrasive paper 11 are symmetrically provided with two abrasive paper chip removal grooves 1101, the abrasive paper 11 is in sliding connection with the rod body 801, the pressing gasket 12 comprises a mounting gasket 1201, a plurality of arc-shaped pressing rods 1202 are uniformly arranged on the top of the mounting gasket 1201 around the axis, the inner side of the mounting gasket 1201 is in sliding connection with the rod body 801, and the plurality of arc-shaped pressing rods 1202 are fixedly connected with the mounting gasket 1201. In this example, the plurality of arc-shaped pressing rods 1202 are arranged, so that the abrasive paper 11 can be pressed tightly, and the abrasive paper is prevented from slipping during the grinding process, so that the grinding effect and efficiency are affected.

[0045] The inner side of the pressing nut 13 is in threaded connection with the rod body 801, and the top of the pressing nut 13 is closely attached to the mounting gasket 1201.

[0046] Working principle: when the connecting rod 8 drives the pressing plate 10 to rotate, the bottom sandpaper 11 is further driven to polish the valve seat, in this process, a large amount of metal scraps generated are discharged into the multiple pressing plate scrap discharge grooves 1002 at the bottom of the pressing plate 10 through the sandpaper scrap discharge groove 1101, and then discharged, so as to avoid affecting the sandpaper 11 to carry out grinding processing.

[0047] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are only by way of example and that modifications, changes, substitutions and alterations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A valve seat grinding tool characterized by: The utility model provides a fixing support (1) top is provided with the guide seat (2), and the both ends of fixing support (1) are provided with two fixed bolts (3) symmetrically, the inboard of guide seat (2) is provided with guide sleeve (4), and the both sides of guide seat (2) are provided with two limit screws (5) symmetrically, the top of guide sleeve (4) is provided with movable nut (6), and the bottom of guide sleeve (4) is provided with anti -drop nut (7), and the inboard of guide sleeve (4) is provided with connecting rod (8), the side of movable nut (6) is provided with spring part (9) close to anti -drop nut (7), and the bottom of connecting rod (8) is provided with pressure plate (10) through anti -drop nut (7), the bottom of pressure plate (10) is provided with sandpaper (11), the bottom of sandpaper (11) is provided with compression gasket (12), and the bottom of compression gasket (12) is provided with compression nut (13), The bottom of pressure plate (10) is provided with limit groove (1001), and the both ends of pressure plate (10) are provided with two pressure plate chip removal grooves (1002) symmetrically, a plurality of pressure grooves (1003) are uniformly arranged on the both sides of the two pressure plate chip removal grooves around the axis, and the pressure plate (10) is slidably connected with the limit pin (804) through the limit groove (1001). The connecting rod (8) comprises a rod body (801), the top of the rod body (801) is provided with a rod body nut (802) penetrating through the movable nut (6), a rod shoulder (803) is arranged on the rod body (801), the bottom of the rod body (801) is provided with a limit pin (804) penetrating through the anti -drop nut (7), the top of the rod body (801) is rotatably connected with the movable nut (6), the bottom of the rod body (801) is rotatably connected with the anti -drop nut (7), the rod body nut (802) is fixedly connected with the rod body (801), the rod shoulder (803) is fixedly connected with the rod body (801), and the limit pin (804) is fixedly connected with the rod body (801). The both sides of the sandpaper (11) are provided with two sandpaper chip removal grooves (1101) symmetrically, the sandpaper (11) is slidably connected with the rod body (801), the compression gasket (12) comprises a mounting gasket (1201), a plurality of arc-shaped pressing rods (1202) are uniformly arranged on the top of the mounting gasket (1201) around the axis, the mounting gasket (1201) is slidably connected with the rod body (801), and the plurality of arc-shaped pressing rods (1202) are fixedly connected with the mounting gasket (1201). The inside of the compression nut (13) is threadedly connected with the rod body (801), and the top of the compression nut (13) is closely attached to the mounting gasket (1201).

2. A valve seat grinding tool according to claim 1, characterized in that: The both ends of the fixing support (1) are provided with two waist-shaped grooves (101) symmetrically.

3. A valve seat grinding tool according to claim 2, wherein: The bottom of the guide seat (2) is fixedly connected with the fixing support (1), and the two fixed bolts (3) comprise a bolt (301), one end of the bolt (301) is provided with a fixed nut (302) penetrating through the waist-shaped groove (101), the bolt (301) is slidably connected with the fixing support (1) through the waist-shaped groove (101), and the fixed nut (302) is threadedly connected with the bolt (301).

4. A valve seat grinding tool according to claim 3, wherein: The guide sleeve (4) is in sliding connection with the guide base (2), the two limiting screws (5) are respectively in threaded connection with the two sides of the guide base (2), and the limiting screws (5) are in close contact with the guide sleeve (4) through the guide base (2).

5. A valve seat grinding tool according to claim 4, wherein: The outer side of the movable nut (6) is in threaded connection with the guide sleeve (4), and the outer side of the anti-coming-off nut (7) is in threaded connection with the guide sleeve (4).

6. A valve seat grinding tool according to claim 1, wherein: The spring component (9) comprises two friction washers (901), the two friction washers (901) are provided with springs (902) on the side close to each other, one friction washer (901) is fixedly connected with the shaft shoulder (803), the inner side of the other friction washer (901) is in sliding connection with the shaft body (801), and the two ends of the spring (902) are fixedly connected with the two friction washers (901) respectively.

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