Safety valve grinding equipment

Abstract

Safety valve grinding equipment comprises a grinding machine base, a grinding disc power motor is arranged on the grinding machine base and used for driving a rotary grinding disc to rotate, the rotary grinding disc is rotatably installed on a rotary grinding disc base, and a liquid grinding agent receiving box is arranged on the lower portion of the rotary grinding disc base. A grinding head is arranged above the rotary grinding disc, the grinding head is connected with a grinding rod, and the grinding rod is driven by a grinding rod power motor to rotate; a grinding fluid filling pipe is further arranged on the grinding machine base and sequentially connected with a self-priming pump, a grinding fluid storage box and a grinding fluid backflow pipe. The device improves the maintenance efficiency of the safety valve, reduces the labor cost, and ensures that the ground valve clack and valve seat achieve ideal sealing performance.

Description

Technical Field

[0001] This utility model belongs to the field of safety valve grinding technology, and specifically relates to a safety valve grinding device. Background Technology

[0002] The maintenance and repair of safety valves is a crucial industrial requirement, especially in industries such as chemical and power generation that involve high temperatures, high pressures, and the use of flammable and explosive media. Safety valves are vital components for ensuring the safety of equipment and personnel. However, due to prolonged use, the sealing surfaces of safety valves are prone to wear, leading to leaks and requiring periodic grinding and repair. The sealing surfaces of safety valves typically require processing through mechanical grinding, manual grinding, or a combination of both. Existing safety valve grinding machines are primarily designed for production lines in safety valve manufacturers. These machines are usually bulky, expensive, and require fixed installation and operating environments, making them unsuitable for mobile or temporary maintenance. In the absence of suitable grinding machines, maintenance personnel often repair the valve disc and seat manually. This method is not only inefficient but also lacks quality assurance and demands a high level of skill from the operators. Furthermore, commercially available grinding machines often cannot grind both the valve disc and seat simultaneously, limiting their application scope. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a safety valve grinding equipment, which improves the maintenance efficiency of safety valves, reduces labor costs, and ensures that the valve disc and valve seat achieve ideal sealing performance after grinding.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A safety valve grinding device includes a grinding machine base, on which a grinding disc power motor is mounted to drive a rotating grinding disc. The rotating grinding disc is rotatably mounted on a rotating grinding disc seat, and a liquid grinding agent receiving box is provided at the lower part of the rotating grinding disc seat. A grinding head is provided above the rotating grinding disc, and the grinding head is connected to a grinding rod, which is driven to rotate by a grinding rod power motor. The grinding machine base is also provided with a grinding liquid filling pipe, which is connected in sequence to a self-priming pump, a grinding liquid storage box, and a grinding liquid return pipe.

[0006] Preferably, the base of the grinding machine is equipped with a power control box, which provides power to the grinding disc motor, the grinding rod motor, the grinding rod lifting motor, and the self-priming pump.

[0007] Preferably, the grinding machine base is provided with a grinding rod lifting support column, which is slidably connected to the lifting box; the lifting box is connected to the grinding rod lifting support column via a grinding rod lifting locking handle.

[0008] A grinding rod lifting motor is installed at the top of the grinding rod lifting support column. The grinding rod lifting motor drives the lifting box to move up and down through the grinding rod lifting motor reducer and the grinding rod lifting screw.

[0009] The lifting box is equipped with a grinding rod power motor, a grinding rod moving screw, and a grinding rod moving handle;

[0010] The grinding rod moving handle is used to drive the grinding rod moving screw to rotate. The grinding rod moving screw is used to drive the horizontal moving block to move horizontally. The horizontal moving block is used to install the grinding rod power motor and the grinding rod.

[0011] The present invention can achieve the following beneficial effects:

[0012] 1) Improved grinding efficiency: The valve disc and valve seat can be ground simultaneously through two sets of power systems, thus improving grinding efficiency;

[0013] 2) Improve grinding precision: Automatic control is adopted, and the grinding speed and pressure are adjustable to ensure that the sealing surface after grinding meets high precision requirements;

[0014] 3) Reduced operational difficulty: The equipment is easy to operate and suitable for non-professionals, thus reducing the difficulty of operation;

[0015] 4) Reduce costs: Reduce labor costs; save on the amount of liquid grinding fluid used, thus reducing production costs. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a structural diagram of the present utility model.

[0018] In the diagram: 1-Grinding rod power motor; 2-Grinding rod motor gearbox; 3-Grinding rod moving lead screw; 4-Grinding rod moving handle; 5-Grinding rod; 6-Grinding head; 7-Rotating grinding disc; 8-Rotating grinding disc base; 9-Liquid grinding agent receiving box; 10-Grinding disc motor gearbox; 11-Grinding disc power motor; 12-Grinding machine base; 13-Grinding rod lifting motor; 14-Grinding rod lifting motor reducer; 15-Grinding rod lifting locking handle; 16-Grinding rod lifting lead screw; 17-Grinding rod lifting support column; 18-Power control box; 19-Grinding fluid filling pipe; 20-Grinding fluid return pipe; 21-Self-priming pump; 22-Grinding fluid storage box. Detailed Implementation

[0019] Preferred solutions include Figure 1As shown, a safety valve grinding device includes a grinding machine base 12, on which a grinding disc power motor 11 is provided. The grinding disc power motor 11 is used to drive a rotating grinding disc 7 to rotate. The rotating grinding disc 7 is rotatably mounted on a rotating grinding disc seat 8. A liquid grinding agent receiving box 9 is provided at the lower part of the rotating grinding disc seat 8. A grinding head 6 is provided above the rotating grinding disc 7. The grinding head 6 is connected to a grinding rod 5. The grinding rod 5 is driven to rotate by a grinding rod power motor 1. A grinding liquid filling pipe 19 is also provided on the grinding machine base 12. The grinding liquid filling pipe 19 is connected in sequence to a self-priming pump 21, a grinding liquid storage box 22, and a grinding liquid return pipe 20.

[0020] Furthermore, a power control box 18 is provided on the grinding machine base 12. The power control box 18 is used to provide power to the grinding disc motor 11, the grinding rod motor 1, and the self-priming pump 21.

[0021] Furthermore, the grinding machine base 12 is provided with a grinding rod lifting support column 17, which is slidably connected to the lifting box; the lifting box is connected to the grinding rod lifting support column 17 via a grinding rod lifting locking handle 15; a grinding rod lifting motor 13 is installed on the top of the grinding rod lifting support column 17, which drives the lifting box to move up and down via a grinding rod lifting motor reducer 14 and a grinding rod lifting lead screw 16; a grinding rod power motor 1, a grinding rod moving lead screw 3, and a grinding rod moving handle 4 are installed on the lifting box;

[0022] The grinding rod moving handle 4 is used to drive the grinding rod moving screw 3 to rotate. The grinding rod moving screw 3 is used to drive the horizontal moving block to move horizontally. The horizontal moving block is used to install the grinding rod power motor 1 and the grinding rod 5.

[0023] The grinding rod lifting motor 13 drives the grinding rod power motor 1 and the grinding rod motor gearbox 2 to move up and down. The grinding rod power motor 1 drives the grinding rod 5 to rotate. The grinding rod moving handle 4 drives the grinding rod moving screw 3 to rotate. Through the threaded engagement between the grinding rod moving screw 3 and the transverse moving block, the grinding rod power motor 1 and the grinding rod motor gearbox 2 can move together with the transverse moving block, thereby realizing the transverse movement of the grinding rod 5.

[0024] Both the grinding rod 5 and the rotating grinding disc 7 are equipped with gearboxes, allowing for adjustable speed. The rotating grinding disc 7 is made of a high-hardness material, exhibiting good wear resistance and grinding performance; it is designed as a rotatable grinding platform and equipped with a support ring for fixing the valve disc and valve seat. A liquid abrasive receiving box 9 and a grinding fluid return pipe 20 are located beneath the rotating grinding disc 7, enabling the recovery and reuse of the liquid abrasive during the grinding process.

[0025] This device has the following operating modes:

[0026] 1) Valve disc grinding: Place the safety valve disc inside the support ring of the rotating grinding disc 7, start the circulation pump to add liquid grinding agent, start the grinding disc power motor 5 to rotate the grinding disc 4, and grind the valve disc sealing surface.

[0027] 2. Valve seat grinding: Place the safety valve seat at the center of the rotating grinding disc 7, then place the special grinding tool on the valve seat sealing surface. Start the grinding rod lifting motor 13 to lower the grinding rod 5 to the grinding tool slot and connect it with the grinding head 6, and apply a certain pressure to the grinding tool. Adjust the eccentricity of the grinding rod 5 using the grinding rod moving handle 4 according to the valve size. Start the circulating pump to add liquid grinding agent, start the grinding disc power motor 5 to rotate the grinding disc 7. Start the grinding rod power motor 1 to rotate the grinding rod 5 to grind the valve seat sealing surface.

[0028] The grinding of the valve disc and valve seat sealing surfaces can be performed simultaneously.

[0029] 3. Replenishing Liquid Abrasive: The rotating grinding disc 7 is slightly smaller than the liquid abrasive receiving box 9. Abrasive liquid overflowing from the edge of the grinding disc will fall into the liquid abrasive receiving box 9 below. The collected abrasive liquid enters the abrasive liquid storage box 22 through the abrasive liquid return pipe 20. Start the self-priming pump 21 to deliver the liquid abrasive collected in the abrasive liquid storage box 22 to the abrasive liquid filling pipe 19 located above the rotating grinding disc 7, realizing automatic liquid replenishment.

[0030] This device can simultaneously perform high-precision grinding of safety valve seats and discs. It employs automatic control, with adjustable grinding speed and pressure, providing a simpler and faster method for repairing safety valve sealing surfaces, while significantly improving grinding efficiency. Compared to traditional manual grinding methods, this equipment improves grinding efficiency and precision, and can judge and adjust the grinding process to achieve optimal results. It effectively reduces errors and fatigue in manual operation, alleviating the workload of operators. This device can not only automate the grinding of safety valve sealing surfaces but also grind the sealing rings of pump mechanical oil seals, efficiently completing the maintenance of safety valves and mechanical oil seals.

[0031] The operating method of this device is as follows:

[0032] 1. After disassembly, place the safety valve disc within the support ring of the grinding platform. Start the circulation pump to add liquid abrasive, and start the grinding platform motor to rotate the platform and grind the valve disc sealing surface. When grinding the safety valve seat, first place the seat in the center of the grinding platform, then place the special grinding tool on the seat sealing surface. Lower the grinding rod to the groove of the grinding tool and apply a certain pressure to the tool. Adjust the eccentricity of the grinding rod according to the valve size. Start the circulation pump to add liquid abrasive, start the grinding platform motor to rotate the platform, and start the grinding rod motor to rotate the grinding rod and grind the seat sealing surface. The grinding of the valve disc and seat sealing surfaces can be performed simultaneously.

[0033] 2. Start the rotating grinding disc. The injected liquid grinding fluid will move outward under the action of centrifugal force, forming a rotational motion. During the grinding process, the liquid comes into full contact with the grinding media, thereby achieving a highly efficient grinding effect. A liquid receiving box and return pipe are installed under the grinding disc to collect the liquid grinding fluid during the grinding process. The collected grinding fluid can then be reused by a self-priming pump, thereby reducing production costs.

[0034] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A safety valve grinding device, comprising a grinding machine base (12), characterized in that: The grinding machine base (12) is equipped with a grinding disc power motor (11), which is used to drive the rotating grinding disc (7) to rotate. The rotating grinding disc (7) is rotatably mounted on the rotating grinding disc seat (8), and the lower part of the rotating grinding disc seat (8) is equipped with a liquid grinding agent receiving box (9). A grinding head (6) is provided above the rotating grinding disc (7). The grinding head (6) is connected to the grinding rod (5). The grinding rod (5) is driven to rotate by the grinding rod power motor (1). The grinding machine base (12) is also equipped with a grinding fluid filling pipe (19), which is connected in sequence to a self-priming pump (21), a grinding fluid storage box (22), and a grinding fluid return pipe (20).

2. The safety valve grinding equipment according to claim 1, characterized in that: The base (12) of the grinding machine is equipped with a power control box (18), which is used to provide power to the grinding disc motor (11), the grinding rod motor (1) and the self-priming pump (21).

3. The safety valve grinding equipment according to claim 1, characterized in that: The grinding machine base (12) is provided with a grinding rod lifting support column (17), which is slidably connected to the lifting box; the lifting box is connected to the grinding rod lifting support column (17) through the grinding rod lifting locking handle (15); The grinding rod lifting support column (17) is equipped with a grinding rod lifting motor (13) at the top. The grinding rod lifting motor (13) drives the lifting box to move up and down through the grinding rod lifting motor reducer (14) and the grinding rod lifting screw (16). The lifting box is equipped with a grinding rod power motor (1), a grinding rod moving screw (3) and a grinding rod moving handle (4). The grinding rod moving handle (4) is used to drive the grinding rod moving screw (3) to rotate. The grinding rod moving screw (3) is used to drive the horizontal moving block to move horizontally. The horizontal moving block is used to install the grinding rod power motor (1) and the grinding rod (5).

Images