Polishing device for fracturing pump valve castings

Abstract

This utility model relates to the field of casting polishing, specifically to a polishing device for fracturing pump valve castings. It includes an outer casing with a top cover, multiple polishing barrels inside the casing, and a drive structure at the bottom of the casing for rotating the barrels. Each barrel has an inner liner, and the top cover contains multiple cover assemblies that match the barrels. This utility model features multiple polishing barrels working synchronously, allowing for the polishing of multiple castings simultaneously without interference between them, preventing collisions caused by simultaneous polishing. The cover assembly incorporates an elastic buffer, maintaining the force on the top cover during use and ensuring a stable seal between the top cover and the polishing barrels. The elastic buffer also provides cushioning when closing the top cover. Furthermore, the design includes partitions and baffles to significantly reduce the impact of dust and particles on the drive structure.

Description

Technical Field

[0001] This utility model relates to the field of casting polishing, specifically to a polishing device for fracturing pump valve castings. Background Technology

[0002] Fracturing pumps are commonly used equipment in oil and gas wells, and pump valves are the core components. Most of their parts are produced by casting. However, due to the inevitable defects such as burrs, sand holes, oxide scale and surface irregularities in the casting process, pump valve castings need to be ground and polished. Existing polishing methods mainly rely on manual grinding, which is inefficient and prone to creating grinding dead corners. Utility Model Content

[0003] The purpose of this utility model is to provide a reasonably designed polishing device for fracturing pump valve castings, which can solve the above-mentioned defects and deficiencies of the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes an outer casing, an upper cover on the outer casing, multiple polishing barrels inside the outer casing, a drive structure for driving the multiple polishing barrels to rotate at the bottom of the outer casing, an inner liner plate inside each polishing barrel, and multiple cover components matching the polishing barrels inside the upper cover.

[0005] Preferably, there are four polishing barrels, and the bottom of each polishing barrel is installed in the outer casing via bearing two.

[0006] Preferably, the drive structure includes a transmission gear rotatably mounted on the bottom of the outer casing, and each polishing barrel has a transmission gear ring at the bottom. All transmission gear rings are external gear rings, and the transmission gear meshes with all four transmission gear rings. A drive motor is installed at the bottom of the outer casing, and a reducer is connected to the front end of the drive motor. The output end of the reducer is connected to the transmission gear through a gear connection.

[0007] Preferably, the cover assembly includes a connecting plate, the upper end of which is rotatably connected to the inner part of the upper cover via a bearing, and the lower end of the connecting plate is connected to the top cover via multiple sets of elastic buffers. The shape of the top cover matches the opening of the polishing barrel.

[0008] Preferably, a top liner is provided on the lower side of the top cover.

[0009] Preferably, the outer casing is provided with a partition with multiple holes, and the polishing barrels are all placed in the holes of the partition. Each polishing barrel is provided with an annular baffle, which is a cone shape that is smaller at the top and larger at the bottom.

[0010] Preferably, the outer casing and the front end of the top cover are provided with buckles.

[0011] Preferably, the top cover is provided with a handle.

[0012] The beneficial effects of this utility model after adopting the above structure are:

[0013] This utility model is designed with multiple polishing barrels that work simultaneously, so that multiple castings can be polished at one time without affecting each other, thus eliminating the phenomenon of collisions caused by polishing multiple castings at the same time.

[0014] This invention uses a vertical polishing barrel instead of a traditionally designed roller, which reduces the collision between the casting and the barrel wall, thereby preventing deformation and damage caused by impact.

[0015] This utility model designs a cover assembly with an elastic buffer, which can maintain the force on the top cover during use, keep the top cover and polishing barrel stably closed, and the elastic buffer can provide a certain buffer when closing the top cover.

[0016] This utility model designs a partition and baffle to significantly reduce the impact of dust and particles on the drive structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model when the top cover is opened;

[0019] Figure 3 This is a top view of the internal structure of this utility model when the partition is removed;

[0020] Figure 4 This is a cross-sectional view of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Outer casing; 2. Top cover; 3. Buckle; 4. Handle; 5. Polishing bucket; 6. Inner lining plate; 7. Top cover; 8. Top lining plate; 9. Elastic buffer; 10. Connecting plate; 11. Bearing 1; 12. Partition plate; 13. Baffle plate; 14. Bearing 2; 15. Transmission gear ring; 16. Transmission gear; 17. Drive motor; 18. Reducer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] See Figures 1-4As shown, it includes an outer box 1, an upper cover 2 on the outer box 1, a buckle 3 at the front end of the outer box 1 and the upper cover 2, a handle 4 on the upper cover 2, four polishing barrels 5 inside the outer box 1, a drive structure for driving the multiple polishing barrels 5 to rotate at the bottom of the outer box 1, an inner lining plate 6 inside each polishing barrel 5, and multiple cover assemblies matching the polishing barrels 5 inside the upper cover 2.

[0025] The bottom of each polishing barrel 5 is mounted in the outer housing 1 via bearing 14. The drive structure includes a transmission gear 16 rotatably mounted in the bottom of the outer housing 1. Each polishing barrel 5 has a transmission gear ring 15 at its bottom. All transmission gear rings 15 are external gear rings. The transmission gear 16 meshes with all four transmission gear rings 15. A drive motor 17 is installed in the bottom of the outer housing 1. A reducer 18 is connected to the front end of the drive motor 17. The output end of the reducer 18 is connected to the transmission gear 16 via a gear connection.

[0026] The cover assembly includes a connecting plate 10. The upper end of the connecting plate 10 is rotatably connected to the upper cover 2 via a bearing 11. The lower end of the connecting plate 10 is connected to a top cover 7 via multiple sets of elastic buffers 9. The top cover 7 matches the shape of the opening of the polishing barrel 5. A top liner plate 8 is provided on the lower side of the top cover 7. During operation, the elastic buffers 9 can use their elasticity to press the top cover 7 against the polishing barrel 5. The top cover 7 can rotate freely under the action of the bearing 11, thus rotating synchronously with the polishing barrel 5.

[0027] The outer casing 1 is equipped with a partition 12, which has multiple holes. The polishing barrels 5 are all placed in the holes of the partition 12. Each polishing barrel 5 is equipped with an annular baffle 13, which is a cone shape with a smaller top and a larger bottom. The partition 12 can isolate the dust generated during polishing at the top, reducing the impact on the driving structure below. The baffle 13 can guide the dust and particles, so that when they fall downwards, they can be displaced outwards along the surface of the baffle 13, thereby reducing the amount of particles and dust falling from the gaps between the polishing barrel 5 and the partition 12.

[0028] In use, open the latch 3, open the top cover 2 through the handle 4, and at the same time open the top cover 7. At this time, pour the abrasive into the polishing barrel 5 and put in the casting to be processed. Then close the top cover 2 and lock the latch 3. During this process, the top cover 7 presses tightly onto the polishing barrel 5, and the elastic buffer 9 keeps the two pressed together. Start the drive motor 17, which will drive each transmission gear ring 15 to rotate through the reducer 18 and the transmission gear 16, so that each polishing barrel 5 rotates synchronously, and the casting inside is polished. After polishing is completed, open the top cover 2 and take out the casting.

[0029] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A polishing device for fracturing pump valve castings, comprising an outer housing (1) and an upper cover (2) on the outer housing (1), characterized in that: The outer casing (1) contains multiple polishing barrels (5), and the bottom of the outer casing (1) contains a drive structure for driving the multiple polishing barrels (5) to rotate. Each polishing barrel (5) contains an inner liner plate (6), and the top cover (2) contains multiple cover components that match the polishing barrels (5).

2. The polishing device for fracturing pump valve castings according to claim 1, characterized in that: There are four polishing barrels (5), and the bottom of each polishing barrel (5) is installed in the outer casing (1) through bearing two (14).

3. The polishing device for fracturing pump valve castings according to claim 2, characterized in that: The drive structure includes a transmission gear (16) rotatably mounted on the bottom of the outer casing (1). Each polishing barrel (5) has a transmission gear ring (15) at its bottom. The transmission gear rings (15) are all external gear rings. The transmission gear (16) meshes with all four transmission gear rings (15). A drive motor (17) is installed at the bottom of the outer casing (1). A reducer (18) is connected to the front end of the drive motor (17). The output end of the reducer (18) is connected to the transmission gear (16) through a gear connection.

4. The polishing device for fracturing pump valve castings according to claim 1, characterized in that: The cover assembly includes a connecting plate (10), the upper end of which is rotatably connected to the upper cover (2) via a bearing (11), and the lower end of which is connected to a top cover (7) via multiple sets of elastic buffers (9). The top cover (7) matches the shape of the opening of the polishing barrel (5).

5. The polishing device for a fracturing pump valve casting according to claim 4, characterized in that: The top cover (7) is provided with a top liner (8) on its lower side.

6. The polishing device for a fracturing pump valve casting according to claim 1, characterized in that: The outer casing (1) is provided with a partition (12), and multiple holes are opened in the partition (12). The polishing barrels (5) are all located in the holes of the partition (12). Each polishing barrel (5) is provided with an annular baffle (13), which is a cone shape with a smaller top and a larger bottom.

7. The polishing device for fracturing pump valve castings according to claim 1, characterized in that: The outer casing (1) and the top cover (2) are provided with buckles (3) at the front end.

8. The polishing device for fracturing pump valve castings according to claim 1, characterized in that: The top cover (2) is provided with a handle (4).

Images