Flying-in equipment for grinding ball body and valve seat of wear-resistant ball valve

Abstract

The utility model discloses running-in equipment for grinding a ball body and a valve seat of a wear-resistant ball valve, which comprises a grinding box, a fixing mechanism is arranged in the grinding box, and the utility model relates to the technical field of ball valve processing. According to the running-in equipment for grinding the ball body and the valve seat of the wear-resistant ball valve, a rotatable fixed block and a driving rod are arranged in a grinding box, a contact block capable of sliding within a certain distance is arranged on the surface of the fixed block, and a driving ring in threaded connection is arranged on the surface of the driving rod; crossed fixing rods are rotatably arranged between the contact block and the driving ring, the fixing rods can be driven to rotate by changing the position of the driving ring on the surface of the driving rod, the surface of the contact block can make contact with the inner surface of a circular groove penetrating through the ball, and the position of the ball is limited through friction force between the surface material of the contact block and the inner surface of the circular groove. And the ball is fixed in the grinding box from the interior of the ball, and it is guaranteed that the surface of the ball can be ground in all directions during grinding.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve processing, in particular to a grinding device for grinding a ball body and a valve seat of a wear-resistant ball valve. Background Art

[0002] The ball is the core part of the ball valve, usually made of metal or engineering plastics. The ball has a circular channel. When the ball rotates, the channel is aligned or staggered with the inlet and outlet of the valve, thereby controlling the flow of the fluid; the valve seat is the corresponding part of the sealing surface of the ball, usually made of elastic material. When the ball rotates to the closed position, the valve seat fits tightly on the ball to form a sealing ring.

[0003] According to the search of China Invention Publication No.: CN218874889U, a grinding device for grinding the ball and valve seat of a wear-resistant ball valve is disclosed, including a frame, a workbench is provided on the frame, and a stand is provided on the workbench; a first valve core rotating unit is provided on the stand, and a second valve core rotating unit is provided on the workbench, and the first valve core rotating unit and the second valve core rotating unit are used to clamp and drive the ball to rotate; a rocking plate is rotatably installed on the stand, and the rocking plate can swing under the drive of the rocking mechanism provided on the stand; two valve body rotating units that can move relatively along the axis of the rocking plate are symmetrically installed on the rocking plate, and the valve body rotating units are used to clamp and drive the valve seat to rotate. This application solves the problem of poor grinding effect of existing grinding equipment for wear-resistant ball valves.

[0004] However, when implementing the above technical scheme, there are the following problems: the above scheme can realize the matching and grinding of the ball and the valve seat after clamping, and ensure the close contact between the ball and the valve seat, but there are positions that cannot be polished after the two sides of the ball are clamped. When polishing, it is necessary to pay attention to the clamped position of the ball, and after polishing for a long time, there will be a certain protrusion between the unpolished position and the polished position, which affects the roundness of the overall sphere, and affects the subsequent installation angle and sealing problems of the ball and valve seat during installation. For this reason, the utility model provides a matching and grinding device for grinding the ball and valve seat of a wear-resistant ball valve. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a grinding device for grinding the ball and valve seat of a wear-resistant ball valve, which solves the problem that some positions of the ball and valve seat of the ball valve cannot be ground when the clamping structure of the grinding device is grinding, affecting the placement of the ball before grinding and the subsequent installation of the ball valve.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a grinding device for grinding the ball and valve seat of a wear-resistant ball valve, comprising a grinding box, wherein a fixing mechanism is provided inside the grinding box to fix the ball without obstruction, and the fixing mechanism includes:

[0007] A fixed block and an active rod rotate inside the grinding box, a selection component is arranged between the fixed block, the active rod and the grinding box to realize selective rotation, an active ring is threadedly connected to the surface of the active rod, a contact block is slidably arranged on the surface of the fixed block, a sliding component is arranged between the contact block and the fixed block to realize sliding restriction, and a fixed rod is rotatably arranged between the contact block and the active ring.

[0008] Preferably, the selection component includes a motor fixedly connected to the inside of the grinding box, one end of the output shaft of the motor is fixedly connected to a driving rod via a coupling, and the surface of the driving rod is slidably connected to a driving gear.

[0009] Preferably, a moving component is provided between the driving rod and the driving gear to achieve sliding restriction, the surface of the driving gear is rotatably connected to an operating rod, a fixing component is provided between the operating rod and the grinding box to achieve position fixation, a driving groove is provided on the surface of the fixing block, the interior of the fixing block is rotatably connected to a transfer gear, and a driving groove is provided on the surface of the driving gear.

[0010] Preferably, the moving assembly includes a moving column fixed inside the driving gear, and a moving groove is formed on the surface of the driving rod.

[0011] Preferably, the fixing assembly comprises a fixing plate which slides with the inside of the grinding box, a fixing groove is provided on the surface of the grinding box, and a fixing spring is fixedly connected between the fixing plate and the fixing groove.

[0012] Preferably, the sliding assembly comprises a sliding shaft fixed on the surface of the contact block, and the surface of the fixed block is provided with a sliding groove.

[0013] Beneficial Effects

[0014] The utility model provides a grinding device for grinding the ball and valve seat of a wear-resistant ball valve. Compared with the prior art, it has the following beneficial effects:

[0015] (1) The grinding equipment for grinding the ball and valve seat of a wear-resistant ball valve comprises a fixed block and an active rod that can rotate inside a grinding box, a contact block that can slide within a certain distance is arranged on the surface of the fixed block, and an active ring that is threadedly connected is arranged on the surface of the active rod. A cross fixed rod is rotatably arranged between the contact block and the active ring. The fixed rod can be driven to rotate by changing the position of the active ring on the surface of the active rod, so that the surface of the contact block can contact the inner surface of a circular groove that passes through the ball. The position of the ball is limited by the friction between the surface material of the contact block and the inner surface of the circular groove. The ball is fixed to the inside of the grinding box by the inside of the ball, so that the surface of the ball can be ground in all directions.

[0016] (2) The grinding equipment for grinding the ball and valve seat of a wear-resistant ball valve has a motor fixed inside a grinding box, a driving rod is arranged at the output end of the motor, and a transfer gear that can slide on the surface of the driving rod is arranged. The teeth meshing with the surface of the transfer gear can be changed by sliding the transfer gear, and the engagement of the transfer gear with different tooth surfaces can drive the active rod and the fixed block to rotate separately, thereby achieving the fixation of the ball position and the rotation of the ball inside the grinding box. The driving gear can be driven to move by simply sliding an operating rod, and the operating rod can be quickly limited when it is at the top, which is simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural stereogram of the utility model;

[0018] Figure 2 This is a first-view three-dimensional structural cross-sectional view of the fixing block of the utility model;

[0019] Figure 3 This is a first-view three-dimensional structural cross-sectional view of the driving gear of the utility model;

[0020] Figure 4 This is a cross-sectional view of the three-dimensional structure of the active rod of the utility model from a second viewing angle.

[0021] In the figure: 1-grinding box, 2-fixing mechanism, 21-fixed block, 22-active rod, 23-active ring, 24-contact block, 25-fixed rod, 3-selection component, 31-motor, 32-moving component, 321-moving column, 322-moving groove, 33-fixed component, 331-fixed plate, 332-fixed groove, 333-fixed spring, 34-driving rod, 35-driving gear, 36-operating rod, 37-driving groove, 38-transfer gear, 39-driving groove, 4-sliding component, 41-sliding shaft, 42-sliding groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 , the utility model provides two technical solutions:

[0024] Embodiment 1

[0025] A grinding device for grinding the ball and valve seat of a wear-resistant ball valve, comprising a grinding box 1, one end of which is provided with a transparent rotatable block to realize opening and closing, the interior of the grinding box 1 is provided with a valve seat clamping and rotating structure identical to that in the reference patent, which can realize valve seat position fixing, grinding track rotation and self-rotation, the interior of the grinding box 1 is provided with a fixing mechanism 2 to realize unobstructed fixing of the ball, and the fixing mechanism 2 includes:

[0026] A fixed block 21 and an active rod 22 rotate with the inside of the grinding box 1, a selection component 3 is arranged between the fixed block 21, the active rod 22 and the grinding box 1 to realize selective rotation, one end of the active rod 22 is rotatably connected to the surface of the fixed block 21, the surface of the active rod 22 is threadedly connected with an active ring 23, a contact block 24 is slidably arranged on the surface of the fixed block 21, the surface of the contact block 24 can fix a flexible material through Velcro, a sliding component 4 is arranged between the contact block 24 and the fixed block 21 to realize sliding restriction, a fixed rod 25 is rotatably arranged between the contact block 24 and the active ring 23, the center position between the single set of fixed rods 25 is rotatably connected, and the single set of fixed rods 25 is X-shaped;

[0027] A rotatable fixed block 21 and an active rod 22 are arranged inside the grinding box 1. A contact block 24 that can slide within a certain distance is arranged on the surface of the fixed block 21, and a threaded active ring 23 is arranged on the surface of the active rod 22. A cross fixed rod 25 is rotatably arranged between the contact block 24 and the active ring 23. The change of the position of the active ring 23 on the surface of the active rod 22 can drive the fixed rod 25 to rotate, so that the surface of the contact block 24 can contact the inner surface of the circular groove penetrating the sphere, and the position of the sphere is limited by the friction force between the surface material of the contact block 24 and the inner surface of the circular groove, and the sphere is fixed to the inside of the grinding box 1 by the inside of the sphere, so as to ensure that the surface of the sphere can be polished in all directions during grinding.

[0028] Embodiment 2

[0029] The main difference from the first embodiment is:

[0030] A grinding device for grinding the ball and valve seat of a wear-resistant ball valve, wherein a selection component 3 includes a motor 31 fixedly connected to the inside of a grinding box 1, the motor 31 is a three-phase asynchronous motor and is electrically connected to an external power supply, one end of the output shaft of the motor 31 is fixedly connected to a driving rod 34 through a coupling, the surface of the driving rod 34 is slidably connected to a driving gear 35, a moving component 32 is provided between the driving rod 34 and the driving gear 35 to achieve sliding restriction, the surface of the driving gear 35 is rotatably connected to an operating rod 36, the operating rod 36 slides on the surface of the driving gear 35 through a groove, and the operating rod 36 and the grinding box 1 A fixing assembly 33 is arranged between them to fix the position. A driving groove 37 is provided on the surface of the fixing block 21. The inner surface of the driving groove 37 is evenly fixed with teeth. The surface of the teeth can mesh with the surface of the driving gear 35. The internal rotation of the fixing block 21 is connected with a transfer gear 38. There is a gear-shaped protrusion at one end of the active rod 22. The transfer gear 38 can mesh with the surface of the gear on the surface of the active rod 22 by sliding. A driving groove 39 is provided on the surface of the driving gear 35. The inside of the driving groove 39 is fixedly connected with teeth. The surface of the transfer gear 38 meshes with the surface of the teeth. The moving assembly 32 includes a fixed gear 39 on the driving gear 35. The moving column 321 inside the wheel 35, the surface of the driving rod 34 is provided with a moving groove 322, the surface of the moving column 321 is slidably connected with the inner surface of the moving groove 322, the fixed component 33 includes a fixed plate 331 sliding with the inside of the grinding box 1, the surface of the grinding box 1 is provided with a fixing groove 332, and a fixing spring 333 is fixedly connected between the fixing plate 331 and the fixing groove 332, the sliding component 4 includes a sliding shaft 41 fixed on the surface of the contact block 24, the surface of the fixing block 21 is provided with a sliding groove 42, the surface of the sliding shaft 41 is slidably connected with the inner surface of the sliding groove 42, and the sliding groove 42 and the sliding shaft 41 is T-shaped, and the motor 31 is fixed inside the grinding box 1. The output end of the motor 31 is provided with a driving rod 34, and further provided with a transfer gear 38 that can slide on the surface of the driving rod 34. The teeth meshing with the surface of the transfer gear 38 can be changed by sliding the transfer gear 38. The meshing of the transfer gear 38 with different tooth surfaces can drive the active rod 22 and the fixed block 21 to rotate separately, thereby achieving the fixing of the position of the ball and the rotation of the ball inside the grinding box 1. The driving gear 35 can be driven to move by sliding a simple operating rod 36. At the same time, the operating rod 36 can be quickly limited when it is at the top, and the operation is simple.

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] When working, the operating rod 36 is pulled to the bottom position of the fixed groove 332. At this time, the surface of the inner teeth of the driving groove 39 on the surface of the driving gear 35 meshes with the surface of the transfer gear 38, and the motor 31 is started. The motor 31 drives the driving gear 35 to rotate through the driving rod 34. The rotation of the driving gear 35 causes the transfer gear 38 to rotate. The rotation of the transfer gear 38 can drive the gear at one end of the active rod 22 to rotate and then cause the active rod 22 to rotate. The rotation of the active rod 22 will cause the active ring 23 to move, and the movement of the active ring 23 will cause the fixed rod 25 to rotate. , and then the surface of the contact block 24 will contact the inner surface of the groove on the surface of the ball. After the position of the ball is fixed, pull the operating rod 36 upward, first push the fixing plate 331 backward, pull up the operating rod 36 and then release the fixing plate 331 to limit the position of the operating rod 36. The upward movement of the operating rod 36 causes the surface of the driving gear 35 to engage with the surface of the internal teeth of the driving groove 37 on the surface of the fixed block 21, and then fix the valve seat inside the grinding box 1, close the rotating plate on the front side of the grinding box 1, and start the motor 31. At this time, the fixed block 21 will be driven to rotate, causing the ball to rotate.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for grinding a ball and a valve seat of a wear-resistant ball valve, comprising a grinding box (1), characterized in that: The grinding box (1) is provided with a fixing mechanism (2) inside to achieve unobstructed fixing of the sphere, and the fixing mechanism (2) comprises: A fixed block (21) and an active rod (22) are rotated inside a grinding box (1); a selection assembly (3) is arranged between the fixed block (21), the active rod (22) and the grinding box (1) to realize selective rotation; an active ring (23) is threadedly connected to the surface of the active rod (22); a contact block (24) is slidably arranged on the surface of the fixed block (21); a sliding assembly (4) is arranged between the contact block (24) and the fixed block (21) to realize sliding restriction; and a fixed rod (25) is rotatably arranged between the contact block (24) and the active ring (23).

2. A grinding device for grinding the ball and valve seat of a wear-resistant ball valve according to claim 1, characterized in that: The selection component (3) comprises a motor (31) fixedly connected to the inside of the grinding box (1), one end of the output shaft of the motor (31) is fixedly connected to a driving rod (34) via a coupling, and a driving gear (35) is slidably connected to the surface of the driving rod (34).

3. A grinding device for grinding the ball and valve seat of a wear-resistant ball valve according to claim 2, characterized in that: A moving assembly (32) is provided between the driving rod (34) and the driving gear (35) to achieve sliding restriction, an operating rod (36) is rotatably connected to the surface of the driving gear (35), a fixing assembly (33) is provided between the operating rod (36) and the grinding box (1) to achieve position fixing, a driving groove (37) is provided on the surface of the fixing block (21), a transfer gear (38) is rotatably connected inside the fixing block (21), and a driving groove (39) is provided on the surface of the driving gear (35).

4. A grinding device for grinding the ball and valve seat of a wear-resistant ball valve according to claim 3, characterized in that: The moving assembly (32) includes a moving column (321) fixed inside the driving gear (35), and a moving groove (322) is formed on the surface of the driving rod (34).

5. The grinding equipment for grinding the ball and valve seat of a wear-resistant ball valve according to claim 3, characterized in that: The fixing assembly (33) comprises a fixing plate (331) which slides inside the grinding box (1); a fixing groove (332) is provided on the surface of the grinding box (1); and a fixing spring (333) is fixedly connected between the fixing plate (331) and the fixing groove (332).

6. The grinding equipment for grinding the ball and valve seat of a wear-resistant ball valve according to claim 1, characterized in that: The sliding assembly (4) comprises a sliding shaft (41) fixed on the surface of the contact block (24), and a sliding groove (42) is provided on the surface of the fixed block (21).

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