Valve ball grinding device

Abstract

The utility model discloses a valve ball grinding device which comprises an upper grinding disc, a lower grinding disc and a base, the upper grinding disc is located on the upper portion of the lower grinding disc, the lower grinding disc is connected to the base in a rotating mode, a valve ball is located in the lower grinding disc, and the valve ball is ground through the upper grinding disc through rotation of the lower grinding disc. The lower grinding disc is provided with a plurality of placing grooves, the placing grooves are divided into wide grooves and thin grooves, the wide grooves and the thin grooves are arranged at intervals, the wide grooves correspond to large-specification valve balls, the thin grooves correspond to small-specification valve balls, the wide grooves and the thin grooves can be correspondingly provided with wide barrier strips and thin barrier strips respectively, the wide barrier strips correspond to the wide grooves, and the thin barrier strips correspond to the wide grooves. The thin barrier strips correspond to the thin grooves, and the wide grooves or the thin grooves are filled according to the specification of the valve balls placed in the lower grinding disc. The wide groove and the thin groove correspond to valve balls of different specifications, so that the valve balls of different specifications can be accurately ground.

Description

Technical Field

[0001] The utility model relates to the field of oil valves, in particular to a valve ball grinding device. Background Art

[0002] An oil well pump refers to an underground device that is driven by a pumping unit to lift the crude oil in the well to the ground. An oil well pump generally consists of four parts: a pump barrel, a suction valve, a piston, and a discharge valve. The pressure in the pump is changed by the piston, and the crude oil is transported by opening and closing the pump valve.

[0003] From the above principle, we can know that the quality of the valve is a factor that affects the pump efficiency. A low valve fit will cause leakage in the oil pump, thus affecting the oil pumping effect. Therefore, the fit between the valve ball and the valve seat in the oil pump is an important indicator. The valve ball processing needs to be refined and accurate.

[0004] During the valve ball grinding process, grinding liquid needs to be continuously added to the grinding disc for grinding. Existing grinding discs are all provided with grinding grooves of the same width for the valve balls to be placed therein for grinding. Therefore, a grinding device can only hold valve balls of one specification. Some manufacturers will also place valve balls smaller than the grinding grooves. Although grinding can also be performed, the valve balls are constantly moving left and right and touching the side walls of the grinding grooves, which will have a certain impact on the grinding effect of the valve balls. Utility Model Content

[0005] The utility model aims to provide a valve ball grinding device, which has the advantage of being able to selectively and accurately grind valve balls of different specifications.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A valve ball grinding device comprises an upper grinding disc, a lower grinding disc and a base, wherein the upper grinding disc is located on the upper part of the lower grinding disc, the lower grinding disc is rotatably connected to the base, the valve ball is located in the lower grinding disc and is ground by the upper grinding disc through the rotation of the lower grinding disc, the lower grinding disc is provided with a plurality of placement grooves, the placement grooves are divided into wide grooves and thin grooves, the wide grooves and the thin grooves are arranged at intervals, the wide grooves correspond to large-sized valve balls, the thin grooves correspond to small-sized valve balls, the wide grooves and the thin grooves can be respectively provided with wide baffles and thin baffles, the wide baffles correspond to the wide grooves, the thin baffles correspond to the thin grooves, and the wide grooves or the thin grooves are filled according to the specifications of the valve balls placed in the lower grinding disc.

[0008] Preferably, the height of the wide baffle is higher than the wide groove plane and lower than the height of the valve ball placed in the wide groove, and the height of the thin baffle is higher than the thin groove plane and lower than the height of the valve ball placed in the thin groove.

[0009] Preferably, a through hole one is provided at the top of the wide baffle bar at a position higher than the wide groove plane and lower than the height of the valve ball, and the through hole one is respectively arranged at both ends of the wide baffle bar along its diameter direction, and a through hole two is provided at the top of the thin baffle bar at a position higher than the thin groove plane and lower than the height of the valve ball, and the through hole two is respectively arranged at both ends of the thin baffle bar along its diameter direction.

[0010] Preferably, it further comprises a bracket and a cylinder, wherein the cylinder is inverted in the middle of the bracket, the bottom of the cylinder is fixedly connected to the upper grinding disc, and the cylinder controls the upper grinding disc to move up and down.

[0011] Preferably, a groove is provided on one side of the top of the upper grinding disc, and the groove is used for placing parts coated with grinding liquid.

[0012] Preferably, it further comprises a thick rod and a thin rod, wherein the specification of the thick rod matches the through hole one, and the wide baffle is picked out from the wide groove by passing through the through hole one, and the specification of the thin rod matches the through hole two, and the thin baffle is picked out from the thin groove by passing through the through hole two.

[0013] By adopting the above technical scheme, valve balls of different specifications can be placed by setting the grinding grooves as wide grooves and thin grooves, and wide baffles corresponding to the wide grooves and thin baffles corresponding to the thin grooves are set. When it is necessary to grind a large-specification valve ball, the thin baffles are placed in the thin grooves to fill them, while the wide baffles are not placed in the wide grooves, and the large-specification valve balls are placed in the wide grooves, thereby realizing the grinding of the large-specification valve balls. Conversely, the wide baffles are placed in the wide grooves and the thin baffles are not placed in the thin grooves, and the small-specification valve balls are placed in the thin grooves to grind the small-specification valve balls, thereby realizing the advantage that one grinding device can grind valve balls of two different specifications.

[0014] The advantages of the utility model are: 1. By setting a wide groove and a corresponding wide baffle, and a thin groove and a corresponding thin baffle, the present application can realize the switching of grinding large and small valve balls; 2. By setting through hole one and through hole two as well as thick rod and thin rod, it is more convenient to pick up and release the wide baffle and the thin baffle, and the operation is simple; 3. The height of the wide baffle is higher than the side wall of the wide groove and smaller than the highest point of the large-sized valve ball, and the height of the thin baffle is higher than the side wall of the thin groove and smaller than the highest point of the thin-sized valve ball, so that neither the wide baffle nor the thin baffle will affect the grinding of the valve ball by the upper grinding disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment;

[0016] Figure 2 This is a schematic diagram of the placement of the wide baffle;

[0017] Figure 3 is a schematic diagram of the position of the wide baffle;

[0018] Figure 4 This is a schematic diagram of the height of the guardrail;

[0019] Figure 5 The figure is a schematic diagram of the placement of the thin baffle;

[0020] Figure 6 Schematic diagram of the position of the thin baffle.

[0021] Figure numerals: 1. bracket; 2. oil cylinder; 3. upper grinding disc; 4. groove; 5. lower grinding disc; 6. base; 7. thin groove; 8. wide groove; 9. wide baffle; 10. through hole one; 11. thick rod; 12. thin baffle; 13. through hole two; 14. thin rod. DETAILED DESCRIPTION

[0022] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. At the same time, it should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0023] Attach Figure 1 As shown, a valve ball grinding device includes an upper grinding disc 3, a lower grinding disc 5, and a base 6. The upper grinding disc 3 is located on the upper part of the lower grinding disc 5, and the lower grinding disc 5 is rotatably connected to the base 6. The valve ball is located in the lower grinding disc 5 and is ground by the upper grinding disc 3 through the rotation of the lower grinding disc 5. The cylinder 2 is inverted in the middle of the bracket 1, and the bottom of the cylinder 2 is fixedly connected to the upper grinding disc 3. The cylinder 2 controls the upper grinding disc 3 to move up and down.

[0024] Attach Figure 2 and attached Figure 3 As shown, the lower grinding disc 5 is provided with a plurality of placement grooves, which are divided into wide grooves 8 and thin grooves 7. The wide grooves 8 and the thin grooves 7 are arranged at intervals, the wide grooves 8 correspond to large-sized valve balls, and the thin grooves 7 correspond to small-sized valve balls. The wide grooves 8 and the thin grooves 7 can be respectively provided with wide baffle bars 9 and thin baffle bars 12, the wide baffle bars 9 correspond to the wide grooves 8, and the thin baffle bars 12 correspond to the thin grooves 7. The wide grooves 8 or the thin grooves 7 are filled according to the specifications of the valve balls placed in the lower grinding disc 5.

[0025] A through hole 10 is provided at the top of the wide baffle 9 at a position higher than the plane of the wide groove 8 and lower than the height of the valve ball. The through holes 10 are respectively arranged at both ends of the wide baffle 9 along its diameter direction. A through hole 2 13 is provided at the top of the thin baffle 12 at a position higher than the plane of the thin groove 7 and lower than the height of the valve ball. The through holes 13 are respectively arranged at both ends of the thin baffle 12 along its diameter direction.

[0026] The specification of the thick rod 11 matches the through hole 10 , and the wide retaining bar 9 is picked out from the wide groove 8 through the through hole 10 ; the specification of the thin rod 14 matches the through hole 2 13 , and the thin retaining bar 12 is picked out from the thin groove 7 through the through hole 2 13 .

[0027] When a large-sized valve ball needs to be ground, the spaced thin retaining bars 12 are placed in the corresponding thin grooves 7 so that the thin grooves 7 can be filled, thereby preventing impurities such as grinding fluid from continuously flowing into the thin grooves 7 during grinding and clogging the thin grooves 7, thereby affecting the subsequent grinding of small-sized valve balls.

[0028] At this time, a large-sized valve ball is placed in the wide groove 8, and the oil cylinder 2 is lowered to a height suitable for grinding the large-sized valve ball for grinding. Here, the height of the fine baffle 12 is higher than the plane of the fine groove 7 and lower than the height of the valve ball placed in the fine groove 7, so that during the grinding process, the upper grinding disk 3 will neither touch the fine baffle 12 to affect the grinding of the large-sized valve ball, nor will the fine baffle 12 be too low to form a pit between it and the fine groove 7 to affect the subsequent grinding of the small-sized valve ball.

[0029] When a small-sized valve ball needs to be ground, the thin retaining strip 12 is taken out from the thin groove 7. At this time, the thin rod 14 is passed through the second through hole 13 of the thin retaining strip, and the spaced thin retaining strips 12 are picked out at the same time. In order to facilitate the removal of the thin retaining strips 12, Figure 6 As shown, the through holes 13 formed by the spaced thin blocking strips 12 are located on the same straight line, and the through holes 13 are located on the same straight line. Figure 4 As shown, the position of the second through hole 13 is opened at a position higher than the side wall of the fine groove 7 and lower than the height of the valve ball, so as to facilitate the removal of the fine retaining strip 12.

[0030] Then place the coarse baffle in the coarse groove, where the height of the coarse baffle is higher than the coarse groove plane and lower than the height of the valve ball placed in the coarse groove, so as to achieve better grinding. When a large-sized valve ball needs to be ground again, the coarse baffle can be taken out and the fine baffle 12 can be placed in the above manner.

[0031] The present application provides wide grooves 8 and corresponding wide retaining strips 9, and thin grooves 7 and corresponding thin retaining strips 12, so that the present application can realize the switching of grinding of large-sized and small-sized valve balls.

[0032] Attach Figure 1 As shown, a groove 4 is provided on one side of the top of the upper grinding disc 3, and the groove 4 is used to place the parts coated with the grinding liquid, so as to facilitate the coating work of the grinding liquid and the like and increase the work efficiency.

Claims

1. A valve ball grinding device, comprising an upper grinding disc (3), a lower grinding disc (5), and a base (6), wherein the upper grinding disc (3) is located above the lower grinding disc (5), the lower grinding disc (5) is rotatably connected to the base (6), the valve ball is located in the lower grinding disc (5), and the valve ball is ground by the upper grinding disc (3) through the rotation of the lower grinding disc (5), characterized in that: The lower grinding disc (5) is provided with a plurality of placement grooves, the placement grooves are divided into wide grooves (8) and thin grooves (7), the wide grooves (8) and thin grooves (7) are arranged at intervals, the wide grooves (8) correspond to large-sized valve balls, and the thin grooves (7) correspond to small-sized valve balls, the wide grooves (8) and thin grooves (7) can be respectively provided with wide retaining bars (9) and thin retaining bars (12), the wide retaining bars (9) correspond to the wide grooves (8), and the thin retaining bars (12) correspond to the thin grooves (7), and the wide grooves (8) or the thin grooves (7) are filled according to the specifications of the valve balls placed in the lower grinding disc (5).

2. A valve ball grinding device according to claim 1, characterized in that: The height of the wide retaining strip (9) is higher than the plane of the wide groove (8) and lower than the height of the valve ball placed in the wide groove (8); the height of the thin retaining strip (12) is higher than the plane of the thin groove (7) and lower than the height of the valve ball placed in the thin groove (7).

3. A valve ball grinding device according to claim 2, characterized in that: A through hole (10) is provided at the top of the wide baffle (9) at a position higher than the plane of the wide groove (8) and lower than the height of the valve ball. The through hole (10) is arranged at both ends of the wide baffle (9) along its diameter direction. A through hole (13) is provided at the top of the thin baffle (12) at a position higher than the plane of the thin groove (7) and lower than the height of the valve ball. The through hole (13) is arranged at both ends of the thin baffle (12) along its diameter direction.

4. A valve ball grinding device according to claim 3, characterized in that: It also comprises a bracket (1) and an oil cylinder (2), wherein the oil cylinder (2) is inverted in the middle of the bracket (1), the bottom of the oil cylinder (2) is fixedly connected to the upper grinding disc (3), and the oil cylinder (2) controls the upper grinding disc (3) to move up and down.

5. A valve ball grinding device according to claim 4, characterized in that: A groove (4) is provided on one side of the top of the upper grinding disc (3), and the groove (4) is used for placing parts coated with grinding liquid.

6. A valve ball grinding device according to claim 5, characterized in that: It also comprises a thick rod (11) and a thin rod (14), wherein the specification of the thick rod (11) matches the first through hole (10), and the wide retaining bar (9) is picked out from the wide groove (8) by passing through the first through hole (10), and the specification of the thin rod (14) matches the second through hole (13), and the thin retaining bar (12) is picked out from the thin groove (7) by passing through the second through hole (13).

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