Grinding device for sealing surface of gate valve

Abstract

The utility model discloses a brake valve sealing surface grinding device, and relates to the technical field of valve manufacturing. Comprising a base, a bearing seat, a grinding module and a turntable module. The base is connected with the bearing seat through the sliding platform, the bearing seat is connected with the rotary table module through the bearing stand column, and the base is also connected with the rotary table module. The bearing seat is provided with a bearing plate, a clamp and a bearing stand column and used for fixing the gate valve. The grinding module comprises an angle adjusting rod, a height adjusting rod and a universal coupling, and the angle and height of a grinding disc can be flexibly adjusted; the rotary table module is composed of a sleeve, an electric telescopic device, a motor and a drill rod and provides power for grinding. During use, the position of the clamp is adjusted according to the size of the gate valve, then the angle and height of the grinding module are adjusted, the turntable module is started for grinding, and the spring sleeve can buffer vibration and enable the grinding disc to reset automatically. The device can adapt to gate valves of various specifications, is high in grinding precision and efficiency and convenient to maintain, and effectively solves the problems existing in an existing gate valve sealing surface grinding mode.

Description

Technical Field

[0001] This utility model relates to the field of valve manufacturing technology, specifically to a gate valve sealing surface grinding device. Background Technology

[0002] A gate valve is a type of valve that uses a valve plate as its opening and closing element. Due to its low flow resistance and simple and convenient operation, it is widely used in the installation and use of petroleum, chemical, and water supply pipelines. The sealing of a gate valve is achieved through the contact between the sealing surfaces of the valve plate and the valve seat, relying on the pressure of the medium or the pressure input by the operating mechanism to create a specific pressure for sealing. Therefore, the accuracy of the sealing surfaces of the valve plate and the valve seat in a gate valve affects its sealing effect.

[0003] Currently, manual grinding of gate valve sealing surfaces is inefficient, labor-intensive, and its quality is greatly affected by the worker's skill level and working condition, making it difficult to guarantee consistency and high precision. Some simple grinding equipment is typically limited in structure and function, unable to flexibly adapt to the grinding needs of gate valve sealing surfaces of different specifications and shapes. For example, existing equipment may not be convenient enough in adjusting the grinding angle and height, failing to accurately match the actual situation of the gate valve sealing surface, resulting in poor grinding effects. Furthermore, some equipment lacks effective buffering during the grinding process, easily causing secondary damage to the gate valve sealing surface and affecting the service life of the gate valve. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a gate valve sealing surface grinding device that is more applicable, more efficient and more accurate.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A gate valve sealing surface grinding device, the key technology of which is that it includes a base, a support seat, a grinding module and a turntable module, wherein the base is connected to the support seat through a sliding platform; the support seat is connected to the turntable module through a support column; and the base is connected to the turntable module.

[0007] Preferably, the support base includes a support plate, a clamp, and a support column; the clamp includes two clamping plates and a transverse bolt; the support plate is L-shaped and divided into a short plate and a long plate, the long plate is provided with two sliding grooves, which correspond to two fixing bolts on the clamping plates respectively; the short plate is provided with holes for installing the transverse bolt, one end of the transverse bolt is tightly attached to one side of the clamping plate; the support column is located above the short plate;

[0008] The base includes a support frame and a sliding platform.

[0009] Preferably, the width of the portion of the slide groove near the top of the support plate is smaller than the diameter of the inscribed circle of the nut portion of the fixing bolt on the clamp, and the diameter of the circumscribed circle of the nut of the fixing bolt on the clamp is smaller than the portion of the slide groove near the bottom of the support plate.

[0010] Preferably, the turntable module includes a sleeve, an electric telescopic device, a motor, and a drill rod;

[0011] The sleeve is fitted onto the supporting column and is equipped with a bolt fixing device. An electric telescopic device is provided on the sleeve facing the long plate of the supporting seat. A motor is provided at the front end of the electric telescopic device. A drill rod is provided at the front end of the motor facing the grinding module. A hexagonal protrusion is provided at the front end of the drill rod.

[0012] Preferably, the grinding module includes an angle adjusting rod, a connecting rod, a height adjusting rod, a universal coupling, a spring sleeve, and a grinding disc; the bottom end of the angle adjusting rod is connected to the base by bolts, and the top end is connected to the height adjusting rod by the connecting rod; the front end of the connecting rod has a hole, and the middle of the height adjusting rod has a groove. The height adjusting rod passes through the hole and is connected to the connecting rod and the groove by a height adjusting bolt; the height adjusting rod is adjusted in height by the height adjusting bolt; a spring sleeve is installed at the bottom of the height adjusting rod, and a universal coupling is installed on the side of the spring sleeve closest to the turntable module, and a grinding disc is installed on the other side.

[0013] Preferably, the spring sleeve includes a shell, a spring, and an inner column; the shell is a hollow cylinder with inwardly protruding limiting portions at both ends; the inner column is cylindrical with a protrusion in the middle; the inner column is disposed inside the shell; the spring is disposed between the protruding portion of the inner column and the limiting portion of the shell; the universal coupling connects the inner column portion of the spring sleeve to the grinding disc; the other end of the universal coupling has a hexagonal groove corresponding to the hexagonal protrusion at the front end of the drill rod.

[0014] The beneficial effects of adopting the above technical solution are as follows:

[0015] This invention enables the grinding of various types of gate valves through a movable clamp, an adjustable grinding module with adjustable angle and height, and a movable support base, thus expanding its application range.

[0016] This invention uses a spring sleeve to achieve automatic reset of the grinding disc, reducing working steps. For gate valves with the same processing requirements, only the height of the grinding disc and drill rod needs to be adjusted, which improves work efficiency, reduces errors caused by human factors, and makes the process more precise. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the right front side structure of a gate valve sealing surface grinding device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the left rear side structure of a gate valve sealing surface grinding device proposed in this utility model;

[0020] Explanation of reference numerals in the attached figures

[0021] 1. Base; 11. Support frame; 12. Sliding platform; 2. Bearing seat; 21. Bearing plate; 22. Clamp; 23. Bearing column; 3. Grinding module; 31. Angle adjustment rod; 32. Connecting rod; 33. Height adjustment rod; 34. Universal coupling; 35. Spring sleeve; 36. Grinding disc; 4. Turntable module; 41. Sleeve; 42. Electric telescopic device; 43. Motor; 44. Drill rod; 5. Gate valve to be processed. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] A gate valve sealing surface grinding device, such as Figure 1-2 This includes a base 1, a support 2, a grinding module 3, and a turntable module 4.

[0024] The support base 2 includes a support plate 21, a clamp 22, and a support column 23, used to support the gate valve 5 to be processed. The clamp 22 includes two clamping plates and adjusting bolts, which are responsible for fixing the gate valve 5 to be processed. The support plate 21 is L-shaped and is divided into a short plate and a long plate, which plays the main role in bearing the load. The long plate is provided with two sliding grooves, which correspond to two fixing bolts on the clamping plates respectively. The fixing bolts pass through the sliding grooves and clamping plates, and the clamping plates are fixed on the position of the clamping plates on the support plate 21 by nuts. The short plate is provided with holes for installing transverse bolts. One end of the transverse bolt is close to one side of the clamping plate. The transverse bolts can ensure that the clamp 22 is close to the gate valve 5 to be processed. The support column 23 is provided above the short plate to support the turntable module 4.

[0025] The base 1 includes a support frame 11 and a sliding platform 12; the forward and backward movement of the support seat 2 can be controlled by the sliding platform 12.

[0026] The rotary table module 4 includes a sleeve 41, an electric telescopic device 42, a motor 43, and a drill rod 44. The sleeve 41 is fitted onto the support column 23 and is equipped with a bolt fixing device, which allows for height adjustment on the support column 23 to ensure the docking of the rotary table drill rod 44 and the universal coupling 34. The bolt fixing device achieves height adjustment and locking through the tightening and loosening of the bolts. The electric telescopic device 42 is located on the sleeve 41 facing the long plate of the support seat 2. It can be extended and retracted by the operator and is used to dock the drill rod 44 with the universal coupling 34. The motor 43 is located at the front end of the electric telescopic device 42 to drive the drill rod 44 to rotate, thereby linking the grinding disc 36 to complete the grinding task. The drill rod 44 is located on the side of the motor 43 closest to the grinding module 3. The front end of the drill rod 44 is provided with a hexagonal protrusion that fits on the universal coupling 34 to ensure the reliability of the connection.

[0027] The grinding module 3 includes an angle adjusting rod 31, a connecting rod 32, a height adjusting rod, a universal coupling 34, a spring sleeve 35, and a grinding disc 36. The bottom end of the angle adjusting rod 31 in the grinding platform is connected to the base 1 by bolts, and the angle is adjusted by bolts. The top end is connected to the height adjusting rod 33 by the connecting rod 32. The front end of the connecting rod 32 is provided with a hole, and the height adjusting rod 33 is provided with a groove. The height adjusting rod 33 passes through the hole, and the connecting rod 32 and the height adjusting rod 33 are connected by adjusting bolts passing through the groove and the hole on one side. The height adjusting rod 33 is adjusted in height by the cooperation of the height adjusting bolts and the groove. A spring sleeve 35 is installed at the bottom of the height adjustment rod 33. A universal coupling 34 is installed on one side of the spring sleeve 35 near the turntable module 4, and a grinding disc 36 is installed on the other side. The spring sleeve 35 includes a shell, a spring, and an inner column. The shell is a hollow cylinder with inwardly protruding limiting parts at both ends. The inner column is cylindrical with a protrusion in the middle and is located inside the shell. The spring is located between the protrusion of the inner column and the limiting part of the shell. The universal coupling 34 and the grinding disc 36 are connected to the inner column of the spring sleeve 35. The hexagonal groove at the other end of the universal coupling 34 is combined with the hexagonal protrusion at the front end of the drill rod 44 to drive the inner column to rotate, thereby driving the grinding disc 36 to rotate. The universal coupling 34 ensures the connection between the turntable module 4 and the grinding module 3 and the angle of the grinding sealing surface is fixed. The spring sleeve 35 adjusts the movement distance of the grinding disc 36 through the spring. After grinding, the grinding disc 36 can automatically spring back to the initial position.

[0028] When using this gate valve sealing surface grinding device, the position of the clamp 22 on the support seat 2 must first be adjusted according to the size and shape of the gate valve to be ground. The gate valve is placed on the long plate of the support plate 21, and the clamping plate is moved by tightening the fixing bolts. Then, the transverse bolts ensure a tight fit between the clamp 22 and the gate valve 5 to be processed, thus achieving a stable clamping of the gate valve. Because the long plate has a sliding groove that cooperates with the fixing bolts on the clamping plate, the clamping position can be flexibly adjusted to accommodate gate valves of different specifications.

[0029] Next, adjust the position and angle of the grinding module 3. By loosening the bolts connecting the angle adjusting rod 31 to the base 1, the tilt angle of the angle adjusting rod 31 can be changed, thereby adjusting the tilt angle of the grinding disc 36 to match the grinding requirements of the gate valve sealing surface. After adjusting the angle, tighten the bolts to fix the angle adjusting rod 31. Then, using the height adjusting bolts on the height adjusting rod 33, adjust the height of the height adjusting rod 33 to adjust the grinding disc 36 to the appropriate height. The height adjusting rod 33 passes through the hole at the front end of the connecting rod 32 and is connected by bolts. When adjusting the height, simply loosen the adjusting bolts, ensuring a tight fit between the connecting rod 32 and the height adjusting rod 33 to complete the height adjustment task. After the height adjustment is completed, the height of the grinding disc 36 can accurately correspond to the height of the gate valve sealing surface, ensuring the effectiveness of the grinding.

[0030] Regarding the rotary table module 4, it is first fixed at a suitable height using the bolt fixing device on the sleeve 41. According to the grinding process requirements, the electric telescopic device 42 is activated, causing the drill rod 44 to extend forward or retract backward, adjusting the distance between the front end of the drill rod 44 and the universal coupling 34. Furthermore, the hexagonal protrusion at the front end of the drill rod 44 tightly engages with the mating part on the universal coupling 34. When the motor 43 starts, it drives the drill rod 44 to rotate, and the drill rod 44 drives the universal coupling 34 to rotate via the hexagonal protrusion, thereby driving the grinding disc 36 to rotate at high speed.

[0031] During the grinding process of the grinding disc 36, as the electric telescopic device 42 in the turntable module 4 extends, it drives the inner column of the spring sleeve 35 to advance stably, so that the grinding disc 36 can grind at a specific angle and can automatically spring back after the task is completed. The spring sleeve 35 plays a role in buffering and resetting. The limiting parts protruding inward at both ends of the outer shell of the spring sleeve 35 are provided with springs between them and the protruding part in the middle of the inner column. When vibration is encountered during the grinding process, the springs can buffer the vibration and reduce damage to the stability of the device.

[0032] After the grinding work is completed, turn off the motor 43 and the electric telescopic device 42. Loosen the adjusting bolts on the clamp 22 and remove the ground gate valve. Clean the grinding device of any remaining grinding debris and impurities to prepare for the next grinding work. In daily maintenance, regularly check whether the connections of each component are loose, especially the bolted connections of the angle adjusting rod 31 and the height adjusting rod 33, as well as the bolt fixing device of the turntable module 4 sleeve 41; check whether the elasticity of the spring in the spring sleeve 35 is normal, and replace it in time if spring failure is found; check the operating status of the motor 43 and the electric telescopic device 42 to ensure their stable performance, so as to ensure that the entire gate valve sealing surface grinding device is always in good working condition, thereby improving grinding efficiency and quality.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gate valve seal face grinding apparatus, characterized by, Including base (1), bearing seat (2), grinding module (3) and rotary table module (4), the base (1) is connected with bearing seat (2) through sliding platform (12);The bearing seat (2) is connected with rotary table module (4) through bearing column (23);The base (1) is connected with rotary table module (4); The rotary table module (4) includes sleeve (41), electric telescopic device (42), motor (43) and drill rod (44); The sleeve (41) is sleeved on the bearing column (23), and the sleeve (41) is provided with bolt fixing device, the electric telescopic device (42) is arranged on the sleeve (41) towards the long plate direction of the bearing seat (2), the front end of the electric telescopic device (42) is provided with the motor (43), the motor (43) is provided with the drill rod (44) in the direction towards the grinding module (3), and the front end of the drill rod (44) is provided with a hexagonal protrusion; The grinding module (3) includes angle adjusting rod (31), connecting rod (32), height adjusting rod, universal coupling (34), spring sleeve (35) and grinding disc (36);The bottom end of the angle adjusting rod (31) is connected with the base (1) by bolt, and the top end is connected with the height adjusting rod (33) through the connecting rod (32);The front end of the connecting rod (32) is provided with a hole, and the middle part of the height adjusting rod (33) is provided with a sliding groove, the height adjusting rod (33) passes through the hole, and is connected by penetrating the sliding groove in the connecting rod (32) and the height adjusting rod (33) through the height adjusting bolt;The height adjusting rod (33) is adjusted in height by the height adjusting bolt;The height adjusting rod (33) is installed with the spring sleeve (35) at the bottom, the universal coupling (34) is installed on the side close to the rotary table module (4), and the grinding disc (36) is installed on the other side.

2. A gate valve seal face grinding device as defined in claim 1, wherein, The bearing seat (2) includes bearing plate (21), clamp (22) and bearing column (23);The clamp (22) includes two clamping plates and a transverse bolt;The bearing plate (21) is L-shaped, divided into a short plate and a long plate, two sliding grooves are arranged on the long plate and correspond to the two fixed bolts on the clamping plate;A hole is arranged on the short plate to install the transverse bolt, and one end of the transverse bolt is close to one side of the clamping plate;The bearing column (23) is arranged above the short plate; The base (1) includes support frame (11) and sliding platform (12).

3. A gate valve seal face grinding device as defined in claim 2, wherein, The part close to the top of the bearing plate (21) of the sliding groove is smaller than the diameter of the inscribed circle of the nut part of the fixed bolt on the clamping plate, and the diameter of the circumscribed circle of the nut of the fixed bolt on the clamping plate is smaller than the part close to the bottom of the bearing plate (21).

4. A gate valve seal face grinding device as described in claim 1, wherein, The spring sleeve (35) comprises a shell, a spring and an inner column; the shell is in a hollow cylindrical shape, and both ends project inwardly to limit portions; the inner column is in a cylindrical shape, and a protrusion is arranged in the middle portion; the spring is arranged between the protrusion of the inner column and the limiting portion of the shell respectively; the universal joint (34) and the grinding disc (36) are connected to the inner column portion of the spring sleeve (35), and the other end of the universal joint (34) is provided with a hexagonal groove corresponding to a hexagonal protrusion at the front end of the drill rod (44).

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