Valve body polishing device for stop valve production

Abstract

The utility model relates to the technical field of stop valve production, in particular to a valve body polishing device for stop valve production, which comprises a box body, an arc-shaped shell A and an arc-shaped shell B are respectively and symmetrically arranged in the box body, the front surface of the box body is provided with an opening, a motor is fixedly arranged on the outer side of the box body, and the output end of the motor is fixedly connected with a rotating rod A; and the other end of the rotating rod A movably penetrates through the outer side of the box body and is fixedly connected with a driving gear, a gear ring is arranged in the box body, and teeth are arranged on the outer side of the gear ring. A valve body is fixed through a clamp on the inner side of a gear ring, a driving gear drives the gear ring to rotate, meanwhile, the gear ring rotates to drive the valve body to rotate on a positioning column, and polishing abrasive paper on the inner sides of an arc-shaped shell A and an arc-shaped shell B is utilized to rotate to polish the outer surface of the valve body; and the polishing abrasive paper on the surface of the positioning column polishes the middle hollow part of the valve body.

Description

Technical Field

[0001] The utility model relates to the technical field of globe valve production, in particular to a valve body polishing device for globe valve production. Background Technique

[0002] A globe valve, also known as a stop valve, belongs to a forced-sealing valve. When the valve is closed, pressure must be applied to the valve flap to force the sealing surface not to leak. When the medium enters the valve from below the valve flap, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the diameter of the valve stem needs to be large, otherwise the valve stem will be bent. It is divided into three types according to the connection method: flange connection, screw connection, and welding connection.

[0003] After retrieval, the Chinese patent publication number CN210125973U, a valve body polishing device for globe valve production, includes a base, a polishing disc, and a polishing tabletop. Both ends of the top of the base are fixedly installed with side plates. The top of the two side plates is fixedly installed with a top plate. One end of the top of the top plate is fixedly installed with a bearing seat, and the other end of the top of the top plate is fixedly installed with a first driving motor. The output end of the first driving motor is movably installed with a first movable lead screw. One end of the first movable lead screw is movably connected to the bearing seat. A first internal thread sleeve is threadedly installed on the first movable lead screw. An opening is provided at the middle position inside the top plate. A guide rail is arranged inside the opening. A sliding sleeve is movably installed on the guide rail. One end inside the base is fixedly installed with a third driving motor. By setting a series of structures, the device has the characteristics of stable structure and good polishing effect on the valve body.

[0004] The existing valve body polishing device for globe valve production cannot polish the outer surface and the inner cavity of the valve body at the same time, and the globe valve to be polished is often fixedly clamped, and cannot cooperate well with the polishing head for rotational polishing, resulting in a poor polishing effect. In view of this, we propose a valve body polishing device for globe valve production. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the present utility model provides a valve body polishing device for globe valve production, which solves the problem that the outer surface of the valve body and the inner cavity of the valve cannot be polished simultaneously. To achieve the above objectives, the present utility model is realized through the following technical solutions: A valve body polishing device for globe valve production, comprising a box body. Inside the box body, an arc-shaped shell A and an arc-shaped shell B are symmetrically arranged respectively. The front of the box body is open. A motor is fixedly installed on the outer side of the box body. The output end of the motor is fixedly connected to a rotating rod A. The other end of the rotating rod A movably penetrates the outer side of the box body and is fixedly connected to a driving gear. Inside the box body, a toothed ring is arranged. Teeth are arranged on the outer side of the toothed ring. The teeth arranged on the outer side of the toothed ring mesh with the driving gear. A fixture is fixedly connected to the inner side of the toothed ring. A rotating rod B is fixedly connected to the inner side of the box body. The arc-shaped shell A is fixedly connected to the other end of the rotating rod B. A positioning column is fixedly connected to the inner wall of the arc-shaped shell. A valve body is sleeved on the positioning column. The valve body contacts the polishing sandpaper on the inner side of the arc-shaped shell B. The fixture abuts against the outer wall of the valve body.

[0006] Preferably, a recycling structure is arranged above the polishing structure. The recycling structure includes a reciprocating screw rod. One end of the reciprocating screw rod is rotatably connected to the inner side of the box body through a bearing. The other end of the reciprocating screw rod movably penetrates the inner side of the box body and extends outwards. A slider is threadedly sleeved on the surface of the reciprocating screw rod. A dust suction fan is fixedly connected to the bottom of the slider. The extended end of the reciprocating screw rod and the rotating rod A are connected through a belt and belt pulleys for transmission.

[0007] Preferably, a limiting rod is fixedly connected to one side of the toothed ring. A ball is arranged at the other end of the limiting rod. An annular sliding groove is opened on the inner side of the box body. The ball is embedded in the annular sliding groove. The ball contacts and slidably connects with the groove wall of the annular sliding groove. By arranging the ball to roll in the annular sliding groove, the toothed ring can be limited.

[0008] Preferably, a sliding hole is opened on the top of the box body. The slider contacts and slidably connects with the hole wall of the sliding hole. By opening the sliding hole, the slider is limited, making the slider slide more stably in the sliding hole.

[0009] Preferably, polishing sandpapers are fixedly connected to the inner sides of both the arc-shaped shell A and the arc-shaped shell B. A polishing sandpaper is fixedly connected to the surface of the positioning column.

[0010] Preferably, the dust suction pipe is a flexible pipe. A collection box is fixedly connected to the back of the box body. One end of the dust suction pipe is communicated with the outlet end of the dust suction fan. The other end of the dust suction pipe fixedly penetrates the top of the collection box. Through the cooperation of the dust suction pipe and the dust suction fan, the debris and impurities generated during and after polishing are sucked into the collection box.

[0011] Preferably, a strip-shaped opening is formed in the outer wall of the collection box, and a collection box is placed on the inner wall of the collection box. The collection box extends outside the strip-shaped opening, and the debris impurities are collected and processed by pulling out the collection box.

[0012] As can be seen from the above technical solutions, a valve body polishing device for stop valve production provided by the embodiments of this specification has at least the following beneficial effects:

[0013] (1) In the present invention, the valve body is fixed by the clamp inside the toothed ring. The driving gear drives the toothed ring to rotate. At the same time, when the toothed ring rotates, it drives the valve body to rotate on the positioning column. The polishing sandpaper inside the arc-shaped shell A and the arc-shaped shell B rotates to polish the outer surface of the valve body. Since the hollow part in the middle of the valve body passes through the positioning column, the polishing sandpaper on the surface of the positioning column polishes the hollow part in the middle of the valve body.

[0014] (2) In the present invention, the rotating rod A drives the reciprocating screw rod to rotate in the same direction during the rotation process. The reciprocating screw rod drives the slider to slide in the sliding hole. The sliding hole plays a role in limiting the slider. The dust suction fan inhales the waste chips generated during polishing while moving left and right following the slider. The inhaled waste chips fall into the interior of the collection box through the dust suction pipe. During the polishing of the valve body, the waste chips generated during polishing can be cleaned and collected, ensuring a good working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application:

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a partial schematic diagram of the polishing structure of the present invention;

[0018] Figure 3 It is a side cross-sectional view of the recycling structure and the polishing structure of the present invention;

[0019] Figure 4 It is an enlarged view of the structure of A of the present invention.

[0020] In the figure: 1, box body; 2, collection box; 3, valve body; 4, electric cylinder; 5, arc-shaped shell A; 6, arc-shaped shell B; 7, recycling structure; 701, collection box; 703, dust suction pipe; 704, sliding hole; 705, slider; 706, reciprocating screw rod; 707, dust suction fan; 8, motor; 9, polishing structure; 901, rotating rod A; 902, driving gear; 903, toothed ring; 904, clamp; 905, rotating rod B; 906, positioning column; 10, annular sliding groove; 11, ball; 12, limiting rod. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 4 As shown in the figure, a valve body polishing device for stop valve production includes a box body 1. Inside the box body 1, an arc-shaped shell A5 and an arc-shaped shell B6 are symmetrically arranged respectively. Polishing sandpapers are fixedly connected to the inner sides of the arc-shaped shell A5 and the arc-shaped shell B6. The front of the box body 1 is open. A motor 8 is fixedly installed on the outside of the box body 1. The output end of the motor 8 is fixedly connected to a rotating rod A901. The other end of the rotating rod A901 movably penetrates the outside of the box body 1 and is fixedly connected to a driving gear 902. A toothed ring 903 is arranged inside the box body 1. Teeth are arranged on the outside of the toothed ring 903. The teeth arranged on the outside of the toothed ring 903 mesh with the driving gear 902. A fixture 904 is fixedly connected to the inside of the toothed ring 903. One inner wall of the box body 1 is rotatably connected to a rotating rod B905 through a bearing. The arc-shaped shell A5 is fixedly connected to the other end of the rotating rod B905. A positioning column 906 is fixedly connected to the inner wall of the arc-shaped shell. The surface of the positioning column 906 is fixedly connected with a polishing sandpaper. A valve body 3 is sleeved on the positioning column 906. The valve body 3 contacts the polishing sandpaper on the inner side of the arc-shaped shell B6. The fixture 904 abuts against the outer wall of the valve body 3. A limiting rod 12 is fixedly connected to one side of the toothed ring 903. A ball 11 is arranged at the other end of the limiting rod 12. An annular sliding groove 10 is opened on the inner side of the box body 1. The ball 11 is embedded in the annular sliding groove 10. The ball 11 contacts and is slidably connected to the groove wall of the annular sliding groove 10. By arranging the ball 11 to roll in the annular sliding groove 10, the toothed ring 903 can be limited.

[0023] Furthermore, the valve body 3 is fixed by the fixture 904 inside the toothed ring 903. The toothed ring 903 is driven to rotate by the driving gear 902. At the same time, when the toothed ring 903 rotates, it drives the valve body 3 to rotate on the positioning column 906. The outer surface of the valve body 3 is polished by the rotation of the polishing sandpapers on the inner sides of the arc-shaped shell A5 and the arc-shaped shell B6. Since the hollow part in the middle of the valve body 3 passes through the positioning column 906, the polishing sandpaper on the surface of the positioning column 906 polishes the hollow part in the middle of the valve body 3. Embodiment 2

[0024] Please refer to Figure 3As shown, a recovery structure 7 is arranged above the polishing structure 9, and the recovery structure 7 includes a reciprocating screw rod 706, one end of the reciprocating screw rod 706 is rotatably connected to the inner side of the box body 1 through a bearing, and the other end of the reciprocating screw rod 706 movably passes through the inner side of the box body 1 and extends outward, and a slider 705 is provided on the surface thread sleeve of the reciprocating screw rod 706, and a dust suction fan 707 is fixedly connected to the bottom of the slider 705, and a sliding hole 704 is provided on the top of the box body 1, and the slider 705 contacts and is slidably connected to the hole wall of the sliding hole 704, and the sliding hole 704 is provided to limit the slider 705, so that the slider 705 slides more stably in the sliding hole 704, and the extended end of the reciprocating screw rod 706 is connected to one end of the rotating rod A901 The dust suction pipe 703 is a hose, and the back side of the box body 1 is fixedly connected with a collecting box 701. One end of the dust suction pipe 703 is connected with the outlet end of the dust suction fan 707, and the other end of the dust suction pipe 703 is fixedly passed through the top of the collecting box 701. The dust suction pipe 703 and the dust suction fan 707 cooperate to suck the debris and impurities generated during and after polishing into the collecting box 701. The outer wall of the collecting box 701 is provided with a strip opening, and the inner wall of the collecting box 701 is provided with a collecting box 2, which extends to the outside of the strip opening. The debris and impurities are collected and processed by pulling out the collecting box 2.

[0025] Furthermore, the rotating rod A901 is arranged to drive the reciprocating screw 706 to rotate in the same direction during the rotation process, and the reciprocating screw 706 is used to drive the slider 705 to slide in the sliding hole 704, and the sliding hole 704 is used to limit the slider 705. The dust suction fan 707 follows the slider 705 to move back and forth left and right, and at the same time, the waste chips generated by polishing are sucked in. The sucked waste chips fall into the interior of the collection box 701 through the dust suction pipe 703. In the process of polishing the valve body 3, the waste chips generated during polishing can be cleaned and collected to ensure a good working environment.

[0026] When the valve body polishing device for the production of the globe valve of the present utility model is in use, the hollow part in the middle of the valve body 3 passes through the positioning column 906, so that the valve body 3 is located inside the arc-shaped shell B6. Then, the electric cylinder 4 is started, and the telescopic end of the electric cylinder 4 drives the arc-shaped shell A5 to move until the arc-shaped shell A5 presses the valve body 3 tightly against the inside of the arc-shaped shell B6. Subsequently, the clamp 904 inside the gear ring 903 is used to fix the valve body 3. By starting the motor 8, the output end of the motor 8 drives the rotating rod A901 to rotate. The rotating rod A901 drives the driving gear 902 to rotate. Since the driving gear 902 meshes with the gear ring 903, the driving gear 902 drives the gear ring 903 to rotate. Since the valve body 3 is fixed by the clamp 904, the rotation of the gear ring 903 drives the valve body 3 to rotate on the positioning column 906 at the same time. The polishing sandpaper on the inner sides of the arc-shaped shell A5 and the arc-shaped shell B6 rotates to polish the outer surface of the valve body 3. Since the hollow part in the middle of the valve body 3 passes through the positioning column 906, the polishing sandpaper on the surface of the positioning column 906 polishes the hollow part in the middle of the valve body 3. During the rotation of the gear ring 903, the limiting rod 12 drives the ball 11 to roll in the annular chute 10, so as to play a role in limiting the gear ring 903. Through the transmission of the pulley and the belt, the rotating rod A901 drives the reciprocating lead screw 706 to rotate in the same direction during the rotation process. The reciprocating lead screw 706 drives the slider 705 to slide in the sliding hole 704. The sliding hole 704 plays a role in limiting the slider 705. Then, the dust suction fan 707 is turned on. While the dust suction fan 707 moves left and right following the slider 705, the waste chips generated by polishing are sucked in. The sucked waste chips fall into the inside of the collection box 701 through the dust suction pipe 703. Therefore, during the polishing of the valve body 3, the waste chips generated during polishing can be cleaned and collected, ensuring a good working environment.

[0027] The above embodiments are only used to illustrate the embodiments of the present utility model, rather than to limit the embodiments of the present utility model. Those of ordinary skill in the relevant technical fields can also make various changes and modifications without departing from the spirit and scope of the embodiments of the present utility model. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present utility model. The patent protection scope of the embodiments of the present utility model shall be defined by the claims.

Claims

1. A valve body polishing device for stop valve production, comprising a housing (1) and a polishing structure (9), characterized in that: The box body (1) is symmetrically provided with an arc-shaped shell A (5) and an arc-shaped shell B (6), the front of the box body (1) is provided with an opening, a motor (8) is fixedly installed on the outside of the box body (1), the output end of the motor (8) is fixedly connected to a rotating rod A (901), the other end of the rotating rod A (901) movably passes through the outside of the box body (1) and is fixedly connected to a driving gear (902), a gear ring (903) is provided inside the box body (1), the outside of the gear ring (903) is provided with teeth, and the gear ring (903) The teeth arranged on the outside mesh with the driving gear (902); the inner side of the gear ring (903) is fixedly connected with a clamp (904); the inner side of the box body (1) is fixedly connected with a rotating rod B (905); the arc-shaped shell A (5) is fixedly connected to the other end of the rotating rod B (905); the inner wall of the arc-shaped shell is fixedly connected with a positioning column (906); a valve body (3) is sleeved on the positioning column (906); the valve body (3) is in contact with the polishing sandpaper on the inner side of the arc-shaped shell B (6); and the clamp (904) is in contact with the outer wall of the valve body (3).

2. A valve body polishing device for stop valve production according to claim 1, characterized in that: A recycling structure (7) is arranged above the polishing structure (9), and the recycling structure (7) comprises a reciprocating screw (706), one end of the reciprocating screw (706) is rotatably connected to the inner side of the box body (1) via a bearing, and the other end of the reciprocating screw (706) movably penetrates the inner side of the box body (1) and extends outward, a sliding block (705) is provided on the surface thread sleeve of the reciprocating screw (706), and a dust suction fan (707) is fixedly connected to the bottom of the sliding block (705), and the extended end of the reciprocating screw (706) is connected to the rotating rod A (901) via a belt and a pulley transmission.

3. A valve body polishing device for stop valve production according to claim 1, characterized in that: One side of the gear ring (903) is fixedly connected to a limit rod (12), the other end of the limit rod (12) is provided with a ball (11), the inner side of the box body (1) is provided with an annular groove (10), the ball (11) is embedded in the annular groove (10), and the ball (11) is in contact with the groove wall of the annular groove (10) and is slidably connected.

4. A valve body polishing device for stop valve production according to claim 2, characterized in that: A sliding hole (704) is provided on the top of the box body (1), and the sliding block (705) is in contact with the hole wall of the sliding hole (704) and is slidably connected thereto.

5. A valve body polishing device for stop valve production according to claim 1, characterized in that: The inner sides of the arc-shaped shell A (5) and the arc-shaped shell B (6) are both fixedly connected with polishing sandpaper, and the outer surface of the positioning column (906) is fixedly connected with polishing sandpaper.

6. A valve body polishing device for stop valve production according to claim 2, characterized in that: The dust suction pipe (703) is a hose, and the back of the box body (1) is fixedly connected to a collection box (701). One end of the dust suction pipe (703) is connected to the outlet end of the dust suction fan (707), and the other end of the dust suction pipe (703) is fixedly passed through the top of the collection box (701).

7. A valve body polishing device for stop valve production according to claim 6, characterized in that: The outer wall of the collection box (701) is provided with a strip-shaped opening, and the inner wall of the collection box (701) is provided with a collection box (2), and the collection box (2) extends to the outside of the strip-shaped opening.

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