Reciprocating type slurry filtering screen

Abstract

The utility model relates to the technical field of screens, in particular to a reciprocating type slurry filtering screen which comprises a supporting frame, a screen body is arranged at the top of the supporting frame, a motor is fixed outside the screen body, a supporting column is fixed in the screen body, a rotating shaft is rotatably connected in the supporting column, a first bevel gear is fixed at one end of the rotating shaft, and a second bevel gear is fixed at the other end of the rotating shaft. The device has the beneficial effects that the first bevel gear rotates to drive the first connecting rod to rotate in a reciprocating mode, and the first connecting rod drives the transverse rod to move in the supporting column in a reciprocating mode through the extension rod when moving in a reciprocating mode; and then the first push plate and the second push plate are driven to reciprocate to push the slurry, and the slurry is pushed and matched with rotation of the stirring plate, so that the slurry can quickly pass through the screen and is prevented from being accumulated in the screen.

Description

Technical Field

[0001] The utility model relates to the technical field of screens, in particular to a reciprocating screen for mud filtering. Background Art

[0002] During the oil extraction process, mud is encountered, and then the mud enters the inside of the screen, and then the mud is filtered through the sieve holes at the bottom of the screen.

[0003] Citing the patent application number CN216517882U, the mud in the mud pool is stirred by a mud stirring device to mix the drill cuttings and the mud evenly, and then the extracted mud is filtered through a screen to discharge the drill cuttings, thereby preventing the drill cuttings from re-entering and being discharged into the borehole again, thereby improving the repeated circulation efficiency of the mud. Some muds have a high mud content and are piled up together, so the time it takes for the mud to pass through the screen will be slow, and the device cannot make such mud pass through the screen quickly. Utility Model Content

[0004] The utility model aims to solve the problem that some muds in the prior art have high mud content and are piled up, so the time for mud to pass through the screen will be slow, and the device cannot make such mud pass through the screen quickly, and a reciprocating screen for mud filtering is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a reciprocating mud filtration screen, comprising: a support frame, a screen is arranged on the top of the support frame, a motor is fixed to the outside of the screen, a support column is fixed to the inside of the screen, a rotating shaft is rotatably connected to the inside of the support column, a first bevel gear is fixed to one end of the rotating shaft, a hollow shaft is rotatably connected to the outside of the support column, and a second bevel gear is arranged on the outside of the hollow shaft.

[0006] The utility model can be further configured that a cross bar is slidably connected inside the support column and one end of the cross bar passes through the inside of the hollow shaft, a first push plate is fixed to one end of the cross bar, and a second push plate is fixed to the other end of the cross bar.

[0007] The utility model can be further configured as follows: an extension rod is fixed to one end of the cross rod, the outside of the first bevel gear is rotatably connected to a first connecting rod, and one end of the first connecting rod is rotatably connected to the extension rod.

[0008] The utility model can be further configured such that a stirring plate is fixed to the outside of the hollow shaft, and the stirring plates are in total two.

[0009] The utility model can be further configured such that the motor rotates at a low speed, thereby driving the stirring plate to move at a low speed.

[0010] The utility model can be further configured such that the first bevel gear is perpendicular to the second bevel gear, and the first bevel gear is always meshed with the second bevel gear.

[0011] The utility model can be further configured such that the output end of the motor is fixedly connected to one end of the rotating shaft, and the motor is started to drive the rotating shaft to rotate.

[0012] The utility model can be further configured as follows: the support frame comprises a bottom plate and a top plate, the bottom plate and the top plate are connected via a second connecting rod, and the bottom of the bottom plate is rotatably connected to a cylinder.

[0013] The utility model provides a reciprocating type slurry filtering screen, which has the following beneficial effects:

[0014] 1. Start the motor to drive the shaft to rotate at a low speed inside the support column. The rotation of the shaft drives the first bevel gear to rotate and then drives the second bevel gear to rotate. When the second bevel gear rotates, it drives the hollow shaft to rotate. The rotation of the hollow shaft drives the stirring plate to rotate at a low speed to slowly stir the mud, which is conducive to the rapid passage of mud with high mud content through the screen.

[0015] 2. The rotation of the first bevel gear drives the first connecting rod to rotate reciprocatingly. When the first connecting rod reciprocates, it drives the cross bar to reciprocate in the support column through the extension rod, and then drives the first push plate and the second push plate to reciprocate to push the mud. By pushing the mud and coordinating with the rotation of the stirring plate, the mud can pass through the screen quickly to prevent accumulation in the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the appearance structure proposed by the utility model;

[0017] Figure 2 A top view of the screen 2 proposed in the utility model;

[0018] Figure 3 The utility model proposed Figure 2 Schematic diagram of local structure;

[0019] Figure 4 This is a three-dimensional diagram of the support frame proposed by the utility model.

[0020] In the figure: 1. support frame; 2. screen; 3. motor; 4. support column; 5. rotating shaft; 6. first bevel gear; 7. hollow shaft; 8. second bevel gear; 9. cross bar; 11. first push plate; 12. second push plate; 13. extension rod; 14. first connecting rod; 16. stirring plate; 17. bottom plate; 18. top plate; 19. second connecting rod; 20. cylinder. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of its embodiments based on the overall structure of the present utility model.

[0023] A reciprocating screen for mud filtration comprises: a support frame 1, a screen 2 is arranged on the top of the support frame 1, a motor 3 is fixed to the outside of the screen 2, a support column 4 is fixed to the inside of the screen 2, a rotating shaft 5 is rotatably connected to the inside of the support column 4, an output end of the motor 3 is fixedly connected to one end of the rotating shaft 5, the motor 3 is started to drive the rotating shaft 5 to rotate, a first bevel gear 6 is fixed to one end of the rotating shaft 5, a hollow shaft 7 is rotatably connected to the outside of the support column 4, a second bevel gear 8 is arranged on the outside of the hollow shaft 7, the first bevel gear 6 is perpendicular to the second bevel gear 8, and the first bevel gear 6 is always meshed with the second bevel gear 8,

[0024] It should be noted that the starting motor 3 drives the rotating shaft 5 to rotate at a low speed inside the supporting column 4. The rotation of the rotating shaft 5 drives the first bevel gear 6 to rotate and then drives the second bevel gear 8 to rotate. When the second bevel gear 8 rotates, it drives the hollow shaft 7 to rotate. The rotation of the hollow shaft 7 drives the stirring plate 16 to rotate at a low speed to slowly stir the mud, which is conducive to the rapid passage of mud with high mud content through the screen 2.

[0025] Furthermore, a cross bar 9 is slidably connected inside the support column 4, and one end of the cross bar 9 passes through the inside of the hollow shaft 7, a first push plate 11 is fixed to one end of the cross bar 9, a second push plate 12 is fixed to the other end of the cross bar 9, an extension rod 13 is fixed to one end of the cross bar 9, a first connecting rod 14 is rotatably connected to the outside of the first bevel gear 6, and one end of the first connecting rod 14 is rotatably connected to the extension rod 13, a stirring plate 16 is fixed to the outside of the hollow shaft 7, and there are two stirring plates 16.

[0026] It can be concluded that the rotation of the first bevel gear 6 drives the first connecting rod 14 to reciprocate. When the first connecting rod 14 reciprocates, it drives the cross bar 9 to reciprocate in the support column 4 through the extension rod 13, and then drives the first push plate 11 and the second push plate 12 to reciprocate to push the mud. By pushing the mud and coordinating with the rotation of the stirring plate 16, the mud can quickly pass through the screen 2 to prevent accumulation in the screen 2.

[0027] Next, the support frame 1 includes a bottom plate 17 and a top plate 18, and the bottom plate 17 and the top plate 18 are connected by a second connecting rod 19. The bottom of the bottom plate 17 is rotatably connected to a cylinder 20, and the output end of the cylinder 20 is rotatably connected to the bottom of the top plate 18. The output end of the cylinder 20 extends out and then multiple second connecting rods 19 rotate crosswise, and the cylinder 20 also rotates accordingly. After that, the distance between the top plate 18 and the bottom plate 17 becomes larger to realize the lifting of the screen 2, and the top plate 18 and the bottom plate 17 are leaky. This design is to prevent the mud discharged from the screen 2 from being blocked by the support frame 1.

[0028] Working principle: the mud enters the inside of the screen 2, and the starting motor 3 drives the rotating shaft 5 to rotate at a low speed inside the supporting column 4. The rotation of the rotating shaft 5 drives the first bevel gear 6 to rotate and then drives the second bevel gear 8 to rotate. When the second bevel gear 8 rotates, it drives the hollow shaft 7 to rotate. The rotation of the hollow shaft 7 drives the stirring plate 16 to rotate at a low speed to slowly stir the mud, which is conducive to allowing the mud with a high mud content to pass through the screen 2 quickly. At the same time, the purpose of slow stirring is to prevent the mud from splashing. The rotation of the first bevel gear 6 drives the first connecting rod 14 to reciprocate. When the first connecting rod 14 reciprocates, it drives the cross bar 9 to reciprocate in the supporting column 4 through the extension rod 13, and then drives the first push plate 11 and the second push plate 12 to reciprocate. The movement pushes the mud. By pushing the mud and coordinating the rotation of the stirring plate 16, the mud can quickly pass through the screen 2 to prevent accumulation in the screen 2. When the screen 2 needs to change its height according to the usage scenario, the output end of the cylinder 20 extends and then multiple second connecting rods 19 rotate crosswise, and the cylinder 20 will also rotate accordingly. After that, the distance between the top plate 18 and the bottom plate 17 becomes larger to achieve the lifting of the screen 2. The top plate 18 and the bottom plate 17 are leaky. This design is to prevent the discharged mud from being blocked by the support frame 1. When it is found in actual use that the existence of the support frame 1 does not bring corresponding advantages, the support frame 1 can be deleted, and the deletion of the support frame 1 does not affect the use of the device.

[0029] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A reciprocating slurry filtration screen, comprising: A support frame (1), characterized in that: a screen (2) is arranged on the top of the support frame (1), a motor (3) is fixed to the outside of the screen (2), a support column (4) is fixed to the inside of the screen (2), the inside of the support column (4) is rotatably connected to a rotating shaft (5), one end of the rotating shaft (5) is fixed with a first bevel gear (6), the outside of the support column (4) is rotatably connected to a hollow shaft (7), and the outside of the hollow shaft (7) is provided with a second bevel gear (8).

2. A reciprocating type slurry filtration screen according to claim 1, characterized in that: A cross bar (9) is slidably connected inside the support column (4), and one end of the cross bar (9) passes through the inside of the hollow shaft (7). A first push plate (11) is fixed to one end of the cross bar (9), and a second push plate (12) is fixed to the other end of the cross bar (9).

3. A reciprocating type slurry filtration screen according to claim 2, characterized in that: An extension rod (13) is fixed to one end of the cross rod (9), the outside of the first bevel gear (6) is rotatably connected to a first connecting rod (14), and one end of the first connecting rod (14) is rotatably connected to the extension rod (13).

4. A reciprocating type slurry filtration screen according to claim 1, characterized in that: A stirring plate (16) is fixed to the outside of the hollow shaft (7), and there are two stirring plates (16) in total.

5. A reciprocating type slurry filtration screen according to claim 1, characterized in that: The motor (3) rotates at a low speed, thereby driving the stirring plate (16) to move at a low speed.

6. A reciprocating type slurry filtration screen according to claim 1, characterized in that: The first bevel teeth (6) are perpendicular to the second bevel teeth (8), and the first bevel teeth (6) are always meshed with the second bevel teeth (8).

7. A reciprocating type slurry filtration screen according to claim 1, characterized in that: The output end of the motor (3) is fixedly connected to one end of the rotating shaft (5), and the motor (3) is started to drive the rotating shaft (5) to rotate.

Images