A self-adjusting tapering valve grinding device

Abstract

The application discloses a valve grinding device with self-adjusting taper, which comprises a mounting unit, a connecting head arranged at one end of a mounting rod, and a mounting plate arranged at the other end of the mounting rod. The device further comprises an adjusting unit, a nut screw-connected with the mounting rod, and an adjusting assembly rotatably arranged at the bottom surface of the nut. The device further comprises a grinding unit, a swing assembly movably arranged on the mounting plate, a roller pin assembly detachably arranged on the swing assembly, a pushing-out assembly arranged on the swing assembly, a pressing assembly arranged in the swing assembly, and a pushing assembly arranged in the swing assembly. The valve grinding device with self-adjusting taper can change the angle of the swing assembly by rotating the nut and driving the swing assembly through the adjusting assembly, and can change the angles of the multiple grinding units simultaneously. In the rotating grinding state, the roller pin assembly can process and polish surfaces with different angles, and can adapt to valve seats with different angle grinding requirements, and the roller pin assembly can be uniformly worn.

Description

Technical Field

[0001] This invention relates to the technical field of valve grinding, and more particularly to a valve grinding device with a self-adjusting taper. Background Technology

[0002] During valve maintenance, valve cores and seats often need to be ground. However, different valves have different tapers for their valve cores and seats. Currently, the grinding of valve seats involves first sending them to a processing plant to have a grinding head made according to the taper of the valve seat before the valve seat can be ground. Since one grinding head can only be used for one valve seat, it cannot be used when a new valve seat is replaced. The whole process delays the project, wastes materials, and is not economical. Summary of the Invention

[0003] In view of the problem that the above-mentioned valve grinding device can only correspond to one valve seat with one grinding head, the present invention is proposed.

[0004] Therefore, the present invention provides a valve grinding device with self-adjusting taper, the purpose of which is to solve the technical problem that the grinding angle of the valve seat grinding head cannot be changed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including an installation unit, an adjustment unit, and a grinding unit.

[0006] The installation unit includes an installation rod, a connector disposed at one end of the installation rod, and an installation plate disposed at the other end of the installation rod.

[0007] The adjustment unit includes a nut threadedly connected to the mounting rod, and an adjustment assembly rotatably disposed on the bottom surface of the nut.

[0008] The grinding unit includes a swing assembly movably mounted on the mounting plate, a needle roller assembly detachably mounted on the swing assembly, an ejection assembly mounted on the swing assembly, a pressing assembly mounted within the swing assembly, and a pushing assembly mounted within the swing assembly.

[0009] In a preferred embodiment of the valve grinding device with self-adjusting taper of the present invention, the adjusting component includes a movable ring rotatably disposed on the bottom surface of the nut, a slider disposed on the inner circumferential surface of the movable ring, and a movable rod movably disposed on the bottom surface of the movable ring and movably connected to the swing component.

[0010] As a preferred embodiment of the valve grinding device with self-adjusting taper of the present invention, the swing assembly includes a swing plate movably connected to the movable rod, a mounting block disposed on the swing plate, a fixed shaft disposed on the mounting block and movably connected to the mounting plate, and a retaining ball rotatably disposed within the swing plate.

[0011] In a preferred embodiment of the valve grinding device with self-adjusting taper of the present invention, the swing plate is provided with a mounting groove for mounting the needle roller assembly, the swing plate is provided with a mounting chamber for mounting the pressing assembly, and the swing plate is provided with a communicating groove; the inner wall of the mounting groove is provided with a clamping groove for clamping the needle roller assembly.

[0012] In a preferred embodiment of the valve grinding device with self-adjusting taper of the present invention, the swing assembly further includes an anti-slip layer disposed in the mounting groove.

[0013] In a preferred embodiment of the valve grinding device with self-adjusting taper described in this invention, the anti-slip layer rubs against the needle roller assembly.

[0014] As a preferred embodiment of the valve grinding device with self-adjusting taper of the present invention, the needle roller assembly includes a needle roller and a telescopic rod disposed on the needle roller.

[0015] In a preferred embodiment of the self-adjusting taper valve grinding device of the present invention, the ejection assembly includes a connecting plate located in the mounting chamber, an ejection plate connected to the bottom end of the connecting plate, and a rotating shaft disposed on the ejection plate and rotatably connected to the inner wall of the mounting chamber.

[0016] As a preferred embodiment of the self-adjusting taper valve grinding device of the present invention, the pressing component includes a movable block slidably disposed in the mounting chamber, a pressure block disposed at the bottom end of the movable block and cooperating to extend into the clamping groove, and a spring disposed at the bottom end of the movable block and connected to the inner wall of the bottom surface of the mounting chamber.

[0017] As a preferred embodiment of the self-adjusting taper valve grinding device of the present invention, the pushing assembly includes a pushing plate slidably disposed in the mounting chamber, a push rod disposed on the pushing plate and cooperating to pass through the swing plate, a second spring disposed on the pushing plate and connected to the inner wall of the mounting chamber, and a push plate disposed on the pushing plate.

[0018] The beneficial effects of the present invention are as follows: It is equipped with an installation unit, an adjustment unit, and a grinding unit. By rotating the nut, the adjustment component drives the swing component to change the angle. By changing the angle of multiple grinding units at the same time, the needle roller assembly can process and grind surfaces at different angles in the rotating grinding state. It can adapt to valve seats with different angle grinding requirements, and the needle roller assembly can be worn evenly. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the valve grinding device with self-adjusting taper of the present invention. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the overall structure of the valve grinding device with self-adjusting taper of the present invention. Figure 2 .

[0022] Figure 3 This is a schematic diagram of the installation unit in the valve grinding device with self-adjusting taper of the present invention.

[0023] Figure 4 This is a schematic diagram of the adjustment unit in the valve grinding device with self-adjusting taper of the present invention.

[0024] Figure 5 This is a schematic diagram of the grinding unit in the self-adjusting taper valve grinding device of the present invention.

[0025] Figure 6 for Figure 5 A magnified view of a portion of the image.

[0026] Figure 7 This is a schematic diagram of the oscillating component in the self-adjusting taper valve grinding device of the present invention.

[0027] Figure 8 This is a schematic diagram of the needle roller assembly in the self-adjusting taper valve grinding device of the present invention.

[0028] Figure 9 This is a schematic diagram showing the working relationship between the self-adjusting taper valve grinding device and the valve seat of the present invention. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive, either alone or selectively, with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0033] Example 1, referring to Figures 1-4 This first embodiment of the invention provides a valve grinding device with a self-adjusting taper. The device includes a mounting unit 100, an adjusting unit 200, and a grinding unit 300. The adjusting unit 200 adjusts the angle of the grinding unit 300, allowing the grinding unit 300 to change angles and grind the inner walls of valve seats at different angles, thus avoiding the need to replace and carry a large number of grinding devices with different angles.

[0034] The installation unit 100 includes an installation rod 101, a connector 102 located at one end of the installation rod 101, and an installation plate 103 located at the other end of the installation rod 101. The installation rod 101 has a threaded groove 101a, and the bottom surface of the installation plate 103 has an open groove 103a. The connector 102 allows connection to the output shaft of a motor, enabling the installation and removal of the device. The motor can drive the device to rotate, thereby grinding the inner wall of the valve seat.

[0035] The adjustment unit 200 includes a nut 201 threadedly connected to the mounting rod 101, and an adjustment component 202 rotatably disposed on the bottom surface of the nut 201. The position of the adjustment component 202 can be adjusted and fixed by the engagement of the nut 201 with the threaded groove 101a, adapting to grinding requirements at different angles.

[0036] The grinding unit 300 includes a swing assembly 301 movably mounted on a mounting plate 103, a needle roller assembly 302 detachably mounted on the swing assembly 301, an ejection assembly 303 mounted on the swing assembly 301, a pressing assembly 304 mounted within the swing assembly 301, and a pushing assembly 305 mounted within the swing assembly 301. The pushing assembly 305 pushes the pressing assembly 304 downward, causing the pressing assembly 304 to press the needle roller assembly 302. Then, the pushing assembly 305 pushes the ejection assembly 303 to swing, and the ejection assembly 303 ejects the needle roller assembly 302 mounted within the swing assembly 301, facilitating the replacement of the needle roller assembly 302. Multiple grinding units 300 are provided, and multiple grinding units 300 are installed in conjunction with the adjusting component 202 to enable line contact between the needle roller assembly 302 and the inner wall of the valve seat. The motor drives the generatrix of the needle roller assembly 302 to generate semi-rolling friction with the inner wall of the valve seat, thus grinding the inner wall of the valve seat. Semi-rolling friction means that the needle roller assembly 302 can rotate, but it will be subject to a large frictional force when rotating, which hinders the rotation of the needle roller assembly 302. This causes the generatrix of the needle roller assembly 302 to rub against the valve seat to change constantly, so that the needle roller assembly 302 can be worn evenly.

[0037] During use, rotating the nut 201 causes the adjusting component 202 to drive the swing component 301 to change its angle. By simultaneously changing the angles of multiple grinding units 300, the needle roller assembly 302 can process and grind surfaces at different angles during rotational grinding, adapting to valve seats with different angle grinding requirements. Furthermore, the needle roller assembly 302 can be worn evenly under friction. The pushing component 305 pushes the pressing component 304 downward, causing the pressing component 304 to press the needle roller assembly 302. Then, the pushing component 305 pushes the ejection component 303 to swing, and the ejection component 303 ejects the needle roller assembly 302 installed in the swing component 301, facilitating the replacement of the worn needle roller assembly 302 after grinding.

[0038] Example 2, refer to Figures 1-8 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that multiple anti-slip layers 301e rub against the needle roller assembly 302. The friction between the multiple anti-slip layers 301e and the needle roller assembly 302 increases the frictional force required for the needle roller assembly 302 to rotate. When the valve seat is being ground, the needle roller assembly 302 is forced to roll. All the generatrices of the needle roller assembly 302 can make frictional contact with the valve seat in the grinding state. The needle roller assembly 302 can become uniformly thinner as a whole. Even if the angle of the swing component 301 is changed, the needle roller assembly 302 always maintains line contact friction with the inner wall of the valve seat, that is, it does not affect the rotation of the needle roller assembly 302, and also achieves frictional resistance of the needle roller assembly 302.

[0039] Compared to Embodiment 1, the adjustment component 202 further includes a movable ring 202a rotatably disposed on the bottom surface of the nut 201, a slider 202b disposed on the inner circumferential surface of the movable ring 202a, and a movable rod 202c movably disposed on the bottom surface of the movable ring 202a and movably connected to the swing component 301. The mounting rod 101 is provided with a groove 101b; the slider 202b slides against the groove 101b, so that when the nut 201 rotates, the movable ring 202a only moves vertically and does not rotate accordingly, which can drive the grinding unit 300 to change angle.

[0040] Preferably, the swing assembly 301 includes a swing plate 301a movably connected to the movable rod 202c, a mounting block 301b disposed on the swing plate 301a, a fixed shaft 301c disposed on the mounting block 301b and movably connected to the mounting plate 103, and a retaining ball 301d rotatably disposed within the swing plate 301a. The swing assembly 301 is movably mounted on the mounting plate 103 via the fixed shaft 301c; the needle roller assembly 302 is mounted within the swing plate 301a, and the angle of the needle roller assembly 302 is adjusted by adjusting the angle of the swing plate 301a, without directly fixing the needle roller assembly 302, facilitating the disassembly and replacement of the needle roller assembly 302.

[0041] Furthermore, the swing plate 301a is provided with a mounting groove 301f for mounting the needle roller assembly 302, and a mounting chamber 301h for mounting the pressing component 304. A connecting groove 301i is provided inside the swing plate 301a. A clamping groove 301g for clamping the needle roller assembly 302 is provided on the inner wall of the mounting groove 301f. The clamping groove 301g limits the mounting of the needle roller assembly 302; the connecting groove 301i facilitates the push-out component 303 to push the needle roller assembly 302 out of the mounting groove 301f, thus enabling the disassembly and replacement of the needle roller assembly 302.

[0042] Furthermore, the oscillating assembly 301 also includes an anti-slip layer 301e disposed within the mounting groove 301f. The anti-slip layer 301e can increase the friction required for the needle roller assembly 302 to rotate. The anti-slip layer 301e can be composed of multiple anti-slip balls disposed within the mounting groove 301f. The multiple anti-slip balls are irregularly distributed within the mounting groove 301f, and the irregularly distributed multiple anti-slip balls can further increase the friction required for the needle roller assembly 302 to rotate.

[0043] In particular, the anti-slip layer 301e rubs against the needle roller assembly 302. The friction between the anti-slip layer 301e and the needle roller assembly 302 increases the frictional force required for the needle roller assembly 302 to rotate. During the grinding of the valve seat, the needle roller assembly 302 is forced to roll. All generatrices of the needle roller assembly 302 can make frictional contact with the valve seat in the grinding state. The needle roller assembly 302 can become uniformly thinner overall. Even if the angle of the swing assembly 301 is changed, the needle roller assembly 302 always maintains line contact friction with the inner wall of the valve seat. This avoids the situation where the needle roller assembly 302 becomes flat due to unilateral wear in the fixed state. In this case, after changing the angle, the contact surface between the needle roller assembly 302 and the inner wall of the valve seat is not the angle adjusted by the swing assembly 301, resulting in grinding errors. It also avoids the situation where the needle roller assembly 302 only rotates but cannot grind the valve seat.

[0044] It is worth mentioning that the needle roller assembly 302 includes a needle roller 302a and a telescopic rod 302b disposed on the needle roller 302a. The bottom surface of the needle roller 302a is provided with a limiting groove 302c for cooperating with the mounting ball 301d. The telescopic rod 302b facilitates the installation of the needle roller assembly 302, and pressing the telescopic rod 302b releases the limiting effect of the swing plate 301a on the entire needle roller assembly 302; the mounting ball 301d also provides initial limiting for the entire needle roller assembly 302, preventing the telescopic rod 302b from separating from the locking groove 301g. The needle roller 302a is made of metal and is used as a consumable. Even after the needle roller assembly 302 is worn, the distance between the needle roller assembly 302 and the mounting groove 301f is still less than the space that the user can remove the needle roller assembly 302 by hand. It is necessary to disassemble the needle roller assembly 302 by pushing the component 305, pressing the component 304 and pushing out the component 303.

[0045] The remaining structure is the same as that in Example 1.

[0046] Example 3, referring to Figures 1-9 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that: pushing the push rod 305b causes the push plate 305a to push the moving plate 305a downward, compressing the telescopic rod 302b until the telescopic rod 302b separates from the mounting groove 301f. At this time, the push plate 305d pushes the connecting plate 303a to swing, and drives the push plate 303b to push the telescopic rod 302b, causing the telescopic rod 302b and the needle roller 302a to tilt, making it easier to remove the worn needle roller assembly 302.

[0047] Compared to Embodiment 2, the further extension component 303 includes a connecting plate 303a located within the mounting chamber 301h, an extension plate 303b connected to the bottom end of the connecting plate 303a, and a rotating shaft 303c disposed on the extension plate 303b and rotatably connected to the inner wall of the mounting chamber 301h. The pushing component 305 causes the connecting plate 303a to drive the extension plate 303b to swing, which in turn pushes the pressed telescopic rod 302b, causing the needle roller assembly 302 to separate from the mounting groove 301f, facilitating the removal and replacement of the needle roller assembly 302.

[0048] Preferably, the pressing component 304 includes a movable block 304a slidably disposed within the mounting chamber 301h, a pressure block 304b disposed at the bottom end of the movable block 304a and cooperating to extend into the locking groove 301g, and a spring 304c disposed at the bottom end of the movable block 304a and connected to the inner wall of the bottom surface of the mounting chamber 301h. Moving the pushing component 305 causes the movable block 304a to move downwards, and the pressure block 304b presses down on the telescopic rod 302b, thereby releasing the limiting relationship between the needle roller assembly 302 and the swing plate 301a. Simultaneously, through the action of the pushing component 303, the needle roller assembly 302 is easily pushed out of the mounting groove 301f for replacement.

[0049] Furthermore, the pushing component 305 includes a pushing plate 305a slidably disposed within the mounting chamber 301h, a push rod 305b disposed on the pushing plate 305a and cooperating to pass through the swing plate 301a, a spring 305c disposed on the pushing plate 305a and connected to the inner wall of the mounting chamber 301h, and a push plate 305d disposed on the pushing plate 305a. The end faces of the pushing plate 305a and the moving block 304a that press against each other are both inclined surfaces. Under the action of the moving plate 305a, the moving block 304a moves in the vertical direction; the moving direction of the moving plate 305a is horizontal, and the moving direction of the moving block 304a is vertical. Pushing the push rod 305b causes the push plate 305a to push the moving plate 305a downward, compressing the telescopic rod 302b until it separates from the mounting groove 301f. At this time, the push plate 305d pushes the connecting plate 303a to swing, and drives the push plate 303b to push the telescopic rod 302b, causing the telescopic rod 302b and the needle roller 302a to tilt, making it easier to remove the worn needle roller assembly 302.

[0050] The remaining structure is the same as that in Example 2.

[0051] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0052] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A valve grinding device with self-adjusting taper, characterized in that: include, The mounting unit (100) includes a mounting rod (101), a connector (102) disposed at one end of the mounting rod (101), and a mounting plate (103) disposed at the other end of the mounting rod (101). The adjustment unit (200) includes a nut (201) threadedly connected to the mounting rod (101), and an adjustment assembly (202) rotatably disposed on the bottom surface of the nut (201); and, The grinding unit (300) includes a swing assembly (301) movably disposed on the mounting plate (103), a needle roller assembly (302) detachably disposed on the swing assembly (301), an ejection assembly (303) disposed on the swing assembly (301), a pressing assembly (304) disposed within the swing assembly (301), and a pushing assembly (305) disposed within the swing assembly (301). The adjustment component (202) includes a movable ring (202a) rotatably disposed on the bottom surface of the nut (201), a slider (202b) disposed on the inner circumferential surface of the movable ring (202a), and a movable rod (202c) movably disposed on the bottom surface of the movable ring (202a) and movably connected to the swing component (301). The swing assembly (301) includes a swing plate (301a) movably connected to the movable rod (202c), a mounting block (301b) disposed on the swing plate (301a), a fixed shaft (301c) disposed on the mounting block (301b) and movably connected to the mounting plate (103), and a retaining ball (301d) rotatably disposed in the swing plate (301a). The swing plate (301a) is provided with a mounting groove (301f) for mounting the needle roller assembly (302). The swing assembly (301) also includes an anti-slip layer (301e) disposed in the mounting groove (301f). The anti-slip layer (301e) rubs against the needle roller assembly (302); The needle roller assembly (302) includes a needle roller (302a) and a telescopic rod (302b) disposed on the needle roller (302a); the pushing assembly (305) pushes the pressing assembly (304) to move downward, so that the pressing assembly (304) presses the telescopic rod (302b) of the needle roller assembly (302), and then the pushing assembly (305) pushes the ejection assembly (303) to swing, and the ejection assembly (303) ejects the needle roller assembly (302) installed in the swing assembly (301).

2. The valve grinding device with self-adjusting taper according to claim 1, characterized in that: The swing plate (301a) is provided with an installation chamber (301h) for installing the pressing assembly (304), and the swing plate (301a) is provided with a connecting groove (301i); the inner wall of the installation groove (301f) is provided with a clamping groove (301g) for clamping the needle roller assembly (302).

3. The valve grinding device with self-adjusting taper according to claim 2, characterized in that: The ejection assembly (303) includes a connecting plate (303a) located in the installation chamber (301h), an ejection plate (303b) connected to the bottom end of the connecting plate (303a), and a rotating shaft (303c) disposed on the ejection plate (303b) and rotatably connected to the inner wall of the installation chamber (301h).

4. The valve grinding device with self-adjusting taper according to claim 3, characterized in that: The pressing assembly (304) includes a movable block (304a) slidably disposed in the mounting chamber (301h), a pressing block (304b) disposed at the bottom end of the movable block (304a) and cooperating to extend into the clamping groove (301g), and a spring (304c) disposed at the bottom end of the movable block (304a) and connected to the inner wall of the bottom surface of the mounting chamber (301h).

5. The valve grinding device with self-adjusting taper according to claim 4, characterized in that: The pushing assembly (305) includes a pushing plate (305a) slidably disposed in the mounting chamber (301h), a push rod (305b) disposed on the pushing plate (305a) and cooperating to pass through the swing plate (301a), a second spring (305c) disposed on the pushing plate (305a) and connected to the inner wall of the mounting chamber (301h), and a push plate (305d) disposed on the pushing plate (305a).

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