A grinder for matching grinding of hard sealing ball and inlet and outlet valve seat

Abstract

The utility model provides a kind of grinder of hard sealing ball body and import and export valve seat matching grinding, belong to valve ball and valve seat grinding technical field, including support frame, the support frame top is equipped with support column by stand column seat, the support frame inner wall is provided with rotating assembly, rotating assembly is used to assist to complete the grinding of valve ball main body, the support column one side is provided with grinding assembly, grinding assembly is used to grind valve seat main body and valve ball main body, the rotating assembly includes two groups of support plate and two groups of bearing seat, two groups of support plate sleeve installation are in support frame outside, two groups of bearing seat are installed in support plate top by bolt, the support plate top is equipped with first motor by bolt, first motor output end is equipped with first transmission wheel, bearing seat is rotatably equipped with transmission rod in it.The utility model can carry out synchronous grinding to two groups of valve seat and valve ball, improve grinding accuracy, ensure the tight fit of valve ball and valve seat.

Description

Technical Field

[0001] This utility model relates to the field of valve ball and valve seat grinding technology, and in particular to a grinding machine for grinding a hard-seal ball and an inlet / outlet valve seat in a paired grinding process. Background Technology

[0002] Hard-seal ball valves are widely used in key fields such as petrochemicals, power, and metallurgy due to their excellent resistance to high temperatures and pressures, corrosion resistance, and sealing performance. Their core sealing performance depends on the fitting precision between the ball and the inlet / outlet valve seats. Typically, a "tight fit" is achieved through precision grinding to ensure zero leakage. During the manufacturing of the ball and valve seats, a grinding machine is needed to ensure the proper pairing of the ball and the inlet / outlet valve seats, completing the matching grinding process.

[0003] Existing grinding methods mainly rely on manual hand-held operation or semi-automatic single-machine step-by-step processing. Workers need to repeatedly clamp, align, and apply force for grinding, which is not only physically demanding but also time-consuming for single-piece processing, making it difficult to meet batch production needs. At the same time, the grinding fixtures can only achieve hand-held grinding of a single valve seat and valve ball. Due to the secondary clamping errors caused by step-by-step processing, it is difficult to guarantee the geometric fit between the two during final assembly, resulting in a low sealing surface fit rate. After grinding, it is impossible to guarantee a tight fit between the two valve seats and valve ball, and the grinding accuracy is insufficient. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a grinding machine for grinding hard-seal balls and inlet / outlet valve seats in a paired manner, thereby more accurately solving the problems of low efficiency and unstable precision control in the existing grinding processes of valve balls and valve seats.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model proposes a grinding machine for grinding a hard-seal ball and an inlet / outlet valve seat in a paired grinding process. The machine includes a support frame, a support column mounted on the top of the support frame via a column base, a rotating component on the inner wall of the support frame to assist in grinding the valve ball body, and a grinding component on one side of the support column for grinding the valve seat body and the valve ball body.

[0007] Furthermore, the rotating assembly includes two sets of support plates and two sets of bearing seats. The two sets of support plates are sleeved and installed outside the support frame. The two sets of bearing seats are bolted to the top of the support plates. A first motor is bolted to the top of the support plates. A first transmission wheel is installed at the output end of the first motor.

[0008] Furthermore, a transmission rod is rotatably installed inside the bearing housing, and a second transmission wheel is sleeved on the outside of the end of the transmission rod. A synchronous belt is sleeved on the outside of the first transmission wheel and the second transmission wheel.

[0009] Furthermore, a fixing component is detachably installed at the end of the transmission rod, and a valve ball body is detachably sleeved on the outside of the fixing component.

[0010] Furthermore, the grinding assembly includes two sets of motor mounts, which are symmetrically mounted on the outside of the support column. A second motor is mounted on the top of the motor mount by bolts, and a drive shaft is mounted on the output end of the second motor. An eccentric wheel is mounted on the end of the drive shaft by a connector.

[0011] Furthermore, a bearing housing is provided on one side of the eccentric wheel, a buffer spring is installed between the eccentric wheel and the bearing housing, and a support rod is installed at the bottom of the eccentric wheel.

[0012] Furthermore, a bearing is provided inside the bearing housing, the end of the support rod has a spherical structure, and the support rod passes through the bearing housing.

[0013] Furthermore, a universal ball seat is sleeved and installed at the end of the support rod, and a connecting ring is installed at the bottom of the universal ball seat by bolts. A valve seat body is detachably installed inside the connecting ring, and the valve seat body is correspondingly arranged with the valve ball body.

[0014] The beneficial effects of this utility model are:

[0015] This utility model proposes a grinding machine for grinding hard-seal spheres and inlet / outlet valve seats in a paired grinding process. With a first motor, first transmission wheel, transmission rod, bearing seat, second transmission wheel, synchronous belt, and fixing components, it can perform rotary grinding of valve ball bodies of different specifications. With a second motor, transmission shaft, eccentric wheel, support rod, universal ball seat, and connecting ring, it can perform rotary grinding of valve seat bodies of different specifications. The synchronous grinding of the two sets of valve seat bodies and valve ball bodies ensures a tight fit during assembly and improves grinding accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an overall side view of the present invention;

[0018] Figure 3 This is a schematic diagram of the rotating component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the grinding assembly structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the grinding component of this utility model.

[0021] The attached figures are labeled as follows:

[0022] In the diagram: 1. Support frame; 2. Support column; 3. Support plate; 4. Bearing seat; 5. First motor; 6. First transmission wheel; 7. Transmission rod; 8. Second transmission wheel; 9. Synchronous belt; 10. Fixing component; 11. Valve ball body; 12. Motor seat; 13. Second motor; 14. Transmission shaft; 15. Eccentric wheel; 16. Bearing housing; 17. Buffer spring; 18. Support rod; 19. Universal ball seat; 20. Connecting ring; 21. Valve seat body. Detailed Implementation

[0023] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.

[0024] Please refer to Figures 1-5 This utility model proposes a grinding machine for grinding a hard-seal ball and an inlet / outlet valve seat in a paired grinding process. The machine is characterized by comprising a support frame 1 for fixing a support plate 3; a support column 2 is mounted on the top of the support frame 1 via a column base for mounting and fixing a motor base 12, thereby mounting and fixing the grinding assembly structure; a rotating component is provided on the inner wall of the support frame 1 to assist in grinding the valve ball body 11; and a grinding component is provided on one side of the support column 2 for grinding the valve seat body 21 and the valve ball body 11.

[0025] The rotating assembly includes two sets of support plates 3 and two sets of bearing seats 4. The two sets of support plates 3 are sleeved on the outside of the support frame 1 for placing and installing the first motor 5 and the bearing seats 4. The two sets of bearing seats 4 are bolted to the top of the support plates 3 to limit the rotation of the transmission rod 7. The first motor 5 is bolted to the top of the support plates 3 to drive the first transmission wheel 6 to rotate, thereby driving the valve ball body 11 to rotate. The first transmission wheel 6 is installed at the output end of the first motor 5 to drive the first motor 5. The transmission rod 7 is rotatably installed inside the bearing seat 4. The second transmission wheel 8 is sleeved on the outside of the end of the transmission rod 7. The first transmission wheel 6 and the second transmission wheel 8 are sleeved on the outside of the transmission rod 7. A timing belt 9 is detachably installed on the end of the transmission rod 7. A fixing piece 10 is detachably installed on the end of the transmission rod 7. The fixing member 10 is used to limit and fix the valve ball body 11. The valve ball body 11 is detachably sleeved on the outside of the fixing member 10. When it is necessary to grind the valve ball body 11 and the valve seat body 21, the user selects the fixing member 10 according to the valve ball body 11. After the fixing member 10 is connected and fixed to the end of the transmission rod 7, the valve ball body 11 is sleeved on the outside of the fixing member 10 and fixed. The first motor 5 drives the first transmission wheel 6 to rotate. Under the transmission of the synchronous belt 9, the rotation of the first transmission wheel 6 drives the second transmission wheel 8 to rotate. The rotation of the second transmission wheel 8 drives the transmission rod 7 to rotate. The rotation of the transmission rod 7 drives the fixing member 10 to rotate. The rotation of the fixing member 10 drives the valve ball body 11 to rotate, which helps to complete the grinding of the valve ball body 11 and the valve seat body 21 and ensures the matching and fit between the valve ball body 11 and the valve seat body 21.

[0026] The grinding assembly includes two sets of motor mounts 12, which are symmetrically mounted on the outside of the support column 2 for mounting and fixing the second motor 13. The second motor 13 is bolted to the top of the motor mount 12 to drive the transmission shaft 14 to rotate, thereby driving the valve seat body 21 to rotate. The output end of the second motor 13 is mounted on the transmission shaft 14 to drive the eccentric wheel 15 to rotate. The end of the transmission shaft 14 is mounted on the eccentric wheel 15 through a connector to drive the valve seat body 21 to rotate eccentrically. A bearing housing 16 is provided on one side of the eccentric wheel 15. A buffer spring 17 is installed between the eccentric wheel 15 and the bearing housing 16. A support rod 18 is installed at the bottom of the eccentric wheel 15. A bearing is provided inside the bearing housing 16. The end of the support rod 18 has a spherical structure to ensure the eccentric rotation of the valve seat body 21. The support rod 18 passes through the bearing housing 16. A universal ball seat 19 is sleeved on the end of the support rod 18. A connecting ring 20 is bolted on to limit and fix the valve seat body 21. The valve seat body 21 is detachably installed inside the connecting ring 20. The valve seat body 21 is correspondingly arranged with the valve ball body 11. When grinding is required on the valve ball body 11 and the valve seat body 21, the user selects the connecting ring 20 according to the valve seat body 21. After connecting the connecting ring 20 to the universal ball seat 19, the valve seat body 21 is connected to the connecting ring 20 and fixed. A second electric... Machine 13 drives transmission shaft 14 to rotate, and the rotation of transmission shaft 14 drives eccentric wheel 15 to rotate. With the cooperation of support rod 18 and universal ball seat 19, the two sets of valve seat bodies 21 are always in contact with the surface of valve ball body 11 and rotate, completing the matching grinding of valve ball body 11 and valve seat body 21. The synchronous grinding of the two sets of valve seat bodies 21 and valve ball body 11 ensures the tight fit of valve seat body 21 and valve ball body 11 during assembly and improves the grinding accuracy of valve seat body 21 and valve ball body 11.

[0027] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A grinding machine for grinding a hard-seal ball paired with an inlet / outlet valve seat, characterized in that, The device includes a support frame, on the top of which a support column is mounted via a column base. A rotating component is provided on the inner wall of the support frame to assist in grinding the valve ball body. A grinding component is provided on one side of the support column to grind the valve seat body and the valve ball body.

2. The grinding machine for grinding a hard-seal ball and an inlet / outlet valve seat according to claim 1, characterized in that, The rotating assembly includes two sets of support plates and two sets of bearing seats. The two sets of support plates are sleeved and installed on the outside of the support frame. The two sets of bearing seats are bolted to the top of the support plates. A first motor is bolted to the top of the support plates. A first transmission wheel is installed at the output end of the first motor.

3. The grinding machine for grinding a hard-seal ball and an inlet / outlet valve seat according to claim 2, characterized in that, A transmission rod is rotatably installed inside the bearing housing, and a second transmission wheel is sleeved on the outside of the end of the transmission rod. A synchronous belt is sleeved on the outside of the first transmission wheel and the second transmission wheel.

4. The grinding machine for grinding a hard-seal ball and an inlet / outlet valve seat according to claim 3, characterized in that, The end of the transmission rod is detachably fitted with a fixing component, and a valve ball body is detachably fitted onto the outside of the fixing component.

5. A grinding machine for grinding a hard-seal ball and an inlet / outlet valve seat according to claim 1, characterized in that, The grinding assembly includes two sets of motor mounts, which are symmetrically mounted on the outside of the support column. A second motor is bolted to the top of each motor mount, and a drive shaft is mounted on the output end of the second motor. An eccentric wheel is mounted on the end of the drive shaft via a connector.

6. A grinding machine for grinding a hard-seal ball and an inlet / outlet valve seat according to claim 5, characterized in that, A bearing housing is provided on one side of the eccentric wheel, a buffer spring is installed between the eccentric wheel and the bearing housing, and a support rod is installed at the bottom of the eccentric wheel.

7. A grinding machine for grinding a hard-seal ball and an inlet / outlet valve seat according to claim 6, characterized in that, The bearing housing contains a bearing, the end of the support rod has a spherical structure, and the support rod passes through the bearing housing.

8. A grinding machine for grinding a hard-seal ball and an inlet / outlet valve seat according to claim 6, characterized in that, A universal ball seat is fitted onto the end of the support rod, and a connecting ring is bolted to the bottom of the universal ball seat. A valve seat body is detachably installed inside the connecting ring, and the valve seat body and the valve ball body are correspondingly arranged.

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