Valve seat groove machining device

Abstract

The utility model discloses a valve seat groove processing device, and relates to the technical field of valve seat processing, the valve seat groove processing device comprises a workbench, the workbench is provided with a mounting groove and a through hole which are coaxially distributed, the mounting groove is communicated with the through hole, the mounting groove is provided with an outer supporting seat, the outer supporting seat is provided with a threaded rod, and the threaded rod is provided with a threaded hole. The bottom end of the threaded rod is arranged in the outer supporting base and rotationally connected with the outer supporting base, the top end of the threaded rod is fixedly connected with a hand wheel, and the outer supporting base is further provided with an inner supporting mechanism used for fixing a valve seat. Only valve seats with limited sizes can be fixed, and the valve seat fixing device is not suitable for valve seats with various specifications and sizes.

Description

Technical Field

[0001] This utility model relates to the field of valve seat processing technology, and in particular to a valve seat groove processing device. Background Technology

[0002] The valve seat is a device used to support the valve core in the fully closed position. It is also a detachable component inside the valve and forms a sealing pair. Generally, the valve seat diameter is the valve's maximum flow diameter. For example, butterfly valve seats can be made from a wide variety of materials, including various types of rubber, plastics, and metals.

[0003] Chinese utility model patent application No. 202420709862.0 discloses a valve seat groove processing device, including a base and a processing mechanism. The processing mechanism includes a placement plate, a rotating roller, a driven wheel, a fixed cylinder, a cylindrical cylinder, a conical column, a lead screw, two sets of fixed components, a rotating component, and a driving component. One end of the rotating roller is fixedly connected to the placement plate, and the other end of the rotating roller passes through the base and is fixedly connected to the driven wheel. The fixed cylinder is fixedly connected to the placement plate, and the cylindrical cylinder is fixedly connected inside the fixed cylinder. The conical column is disposed inside the cylindrical cylinder, and the lead screw passes through the conical column. One end of the lead screw is rotatably connected to the placement plate, and the other end of the lead screw passes through the fixed cylinder and is fixedly connected to the rotating component. The two sets of fixed components are symmetrically arranged on the outside of the fixed cylinder. With the above configuration, the valve seat can be fixed without the need for workers to use other tools, thereby saving the time required for fixing and improving processing efficiency.

[0004] However, the aforementioned utility model still has certain drawbacks in its use. Because it fixes the valve seat using two sets of fixing components, and the size of the fixing cylinder is limited, its applicability to valve seats is also limited. It can only fix valve seats of a limited size and cannot be applied to valve seats of various specifications and sizes. Therefore, a valve seat groove processing device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a valve seat groove processing device, which solves the problems mentioned in the background art.

[0006] This utility model is implemented as follows: a valve seat groove processing device includes a worktable, on which are provided coaxially distributed mounting grooves and through holes. The mounting grooves communicate with the through holes. An outer support seat is provided on the mounting groove, and a threaded rod is provided on the outer support seat. The bottom end of the threaded rod is placed inside the outer support seat and is rotatably connected to the outer support seat. A handwheel is fixedly connected to the top end of the threaded rod. An inner support mechanism for fixing the valve seat is also provided on the outer support seat.

[0007] A further technical solution of this utility model is: a transmission shaft is fixedly connected to the bottom surface of the outer support base, and the top end of the transmission shaft is placed inside the through hole and rotatably connected to the through hole.

[0008] A further technical solution of this utility model is: a motor is provided at the bottom of the workbench, and the output end of the motor is fixedly connected to the bottom of the transmission shaft.

[0009] A further technical solution of this utility model is: the inner support mechanism includes: a lower fixed ring disposed on the outer support base, an upper movable ring disposed on the threaded rod, a first connecting rod disposed on the lower fixed ring, a second connecting rod disposed on the upper movable ring, a connecting shaft disposed at the top end of the first connecting rod, a fixing plate disposed at the top end of the first connecting rod, and a base plate disposed at the bottom end of the fixing plate.

[0010] A further technical solution of this utility model is: the fixing plate has a "T" shaped structure, and the bottom end of the fixing plate extends vertically outward to form the base plate.

[0011] A further technical solution of this utility model is: the bottom end of the first connecting rod is rotatably connected to the lower fixed ring, and the top end of the first connecting rod is connected to the rotating shaft of the fixed plate through the connecting shaft; the top end of the second connecting rod is rotatably connected to the upper movable ring, and the bottom end of the second connecting rod is connected to the rotating shaft of the fixed plate.

[0012] A further technical solution of this utility model is: the first connecting rod and the second connecting rod are distributed in an intersecting manner.

[0013] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model uses an internal support mechanism to fix the valve seat, and uses equally spaced fixing plates to push against the inner wall of the valve seat to achieve the fixing effect. At the same time, the base plate provides initial support for the valve seat. It can not only be applied to valve seats of different specifications and sizes, but also has high working efficiency and fast fixing speed. Attached Figure Description

[0014] Figure 1 This is a front view of a valve seat groove machining device provided by this utility model;

[0015] Figure 2 This is an installation diagram of a valve seat groove processing device provided by this utility model;

[0016] Figure 3 This is a component connection diagram of a valve seat groove processing device provided by this utility model;

[0017] Figure 4 This is a schematic diagram of the internal support mechanism of a valve seat groove processing device provided by this utility model.

[0018] Reference numerals in the attached drawings: 1. Workbench; 11. Mounting slot; 12. Through hole; 2. Drive shaft; 3. Motor; 4. Outer support base; 5. Threaded rod; 6. Handwheel; 7. Inner support mechanism; 71. Lower fixed ring; 72. Upper movable ring; 73. First connecting rod; 74. Second connecting rod; 75. Connecting shaft; 76. Fixed plate; 77. Base plate. Detailed Implementation

[0019] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0020] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0021] In this embodiment, as Figures 1-3 As shown, a valve seat groove processing device includes a worktable 1. The worktable 1 is provided with a mounting groove 11 and a through hole 12 distributed coaxially. The mounting groove 11 communicates with the through hole 12. An outer support seat 4 is provided on the mounting groove 11. A threaded rod 5 is provided on the outer support seat 4. The bottom end of the threaded rod 5 is placed inside the outer support seat 4 and is rotatably connected to the outer support seat 4. A handwheel 6 is fixedly connected to the top end of the threaded rod 5. An inner support mechanism 7 for fixing the valve seat is also provided on the outer support seat 4.

[0022] In this embodiment, as Figure 2As shown, a drive shaft 2 is fixedly connected to the bottom surface of the outer support base 4. The top end of the drive shaft 2 is placed inside the through hole 12 and is rotatably connected to the through hole 12. A motor 3 is provided at the bottom end of the worktable 1, and the output end of the motor 3 is fixedly connected to the bottom end of the drive shaft 2. When the motor 3 starts, it drives the drive shaft 2 to rotate. Since the top end of the drive shaft 2 is fixedly connected to the outer support base 4, when the drive shaft 2 rotates, it drives the outer support base 4 and the valve seat fixed by the inner support mechanism 7 to rotate together, thereby realizing the machining of the valve seat groove.

[0023] In this embodiment, the internal support mechanism 7 is the core component of the valve seat groove machining device. Its main function is to fix the valve seat and prevent it from shifting during machining. Figure 4 As shown, the inner support mechanism 7 includes: a lower fixed ring 71 disposed on the outer support base 4, an upper movable ring 72 disposed on the threaded rod 5, a first connecting rod 73 disposed on the lower fixed ring 71, a second connecting rod 74 disposed on the upper movable ring 72, a connecting shaft 75 disposed at the top end of the first connecting rod 73, a fixed plate 76 disposed at the top end of the first connecting rod 73, and a base plate 77 disposed at the bottom end of the fixed plate 76.

[0024] The fixing plate 76 has a "T" shaped structure, and its bottom end extends vertically outward to form a base plate 77. When it is necessary to fix the valve seat, the base plate 77 is mainly used to place the valve seat to support it.

[0025] In this embodiment, the bottom end of the first connecting rod 73 is rotatably connected to the lower fixed ring 71, and the top end of the first connecting rod 73 is connected to the rotating shaft of the fixed plate 76 via the connecting shaft 75; the top end of the second connecting rod 74 is rotatably connected to the upper movable ring 72, and the bottom end of the second connecting rod 74 is connected to the rotating shaft of the fixed plate 76. When the operator manually rotates the handwheel 6, the threaded rod 5 will also rotate. At this time, since the bottom end of the threaded rod 5 is placed inside the outer support seat 4 and rotatably connected to the outer support seat 4, the upper movable ring 72 will move on the threaded rod 5, thereby causing the intersecting first connecting rod 73 and second connecting rod 74 to extend or retract. When the first connecting rod 73 and second connecting rod 74 extend, the fixed plate 76 will gradually move outward until the valve seat on the base plate 77 is completely fixed; when the first connecting rod 73 and second connecting rod 74 retract, the fixed plate 76 will gradually loosen the inner wall of the valve seat, thereby facilitating the removal of the valve seat.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A valve seat groove machining apparatus comprising a worktable (1), characterized in that: The workbench (1) is provided with coaxially distributed mounting slots (11) and through holes (12). The mounting slots (11) are connected to the through holes (12). An outer support seat (4) is provided on the mounting slots (11). A threaded rod (5) is provided on the outer support seat (4). The bottom end of the threaded rod (5) is placed inside the outer support seat (4) and is rotatably connected to the outer support seat (4). A handwheel (6) is fixedly connected to the top end of the threaded rod (5). An inner support mechanism (7) for fixing the valve seat is also provided on the outer support seat (4). A drive shaft (2) is fixedly connected to the bottom surface of the outer support seat (4). The top end of the drive shaft (2) is placed inside the through hole (12). Rotary connection with the through hole (12); the bottom end of the workbench (1) is provided with a motor (3), the output end of the motor (3) is fixedly connected to the bottom end of the transmission shaft (2); the inner support mechanism (7) includes: a lower fixed ring (71) provided on the outer support seat (4), an upper movable ring (72) provided on the threaded rod (5), a first connecting rod (73) provided on the lower fixed ring (71), a second connecting rod (74) provided on the upper movable ring (72), a connecting shaft (75) provided at the top end of the first connecting rod (73), a fixed plate (76) provided at the top end of the first connecting rod (73), and a bottom plate (77) provided at the bottom end of the fixed plate (76).

2. A valve seat groove machining apparatus according to claim 1, wherein The fixing plate (76) has a "T" shaped structure, and the bottom end of the fixing plate (76) extends vertically outward to form the base plate (77).

3. A valve seat groove machining apparatus according to claim 2, wherein The bottom end of the first connecting rod (73) is rotatably connected to the lower fixed ring (71), and the top end of the first connecting rod (73) is connected to the rotating shaft of the fixed plate (76) through the connecting shaft (75); the top end of the second connecting rod (74) is rotatably connected to the upper movable ring (72), and the bottom end of the second connecting rod (74) is connected to the rotating shaft of the fixed plate (76).

4. The valve seat groove machining apparatus according to claim 3, characterized by The first link (73) and the second link (74) are intersected.

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