Gear shield with sealing groove for fracturing pump

Abstract

The utility model provides a gear shield with a sealing groove for a fracturing pump, which comprises a flange plate, a large arc plate, a small arc plate, a straight bottom plate, a straight side plate, an observation window plate and a panel, the flange plate is in an irregular ring shape, one end of the flange plate is large, the other end of the flange plate is small, and the side wall of the flange plate is provided with a first annular sealing groove; the face plate is an irregular flat plate corresponding to the flange plate in shape, the large arc plate and the small arc plate are both arc-shaped, the straight bottom plate and the straight side plate are both rectangular, and the large arc plate, the straight bottom plate, the small arc plate and the straight side plate are sequentially connected at the ends to define an annular structure identical to the flange plate in shape. One side of the annular structure is connected with the side wall, without the first annular sealing groove, of the flange plate, and the other side of the annular structure is connected with the edge of the panel, so that the overall structure of the gear shield is formed; a hole is formed in the middle of the straight side plate, an observation window plate of an annular structure is sleeved on the hole, and a second annular sealing groove is formed in the surface of the observation window plate. The gear shield solves the problem that a special-shaped gear shield sealing gasket is difficult to match on a maintenance site, and is simple in design and low in cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear shields, in particular to a gear shield with a sealing groove for a fracturing pump. Background Art

[0002] High-pressure plunger pumps and fracturing pumps are commonly used in fracturing operations in oil and gas fields. Pump drive systems typically have two types: an external reduction gearbox and a gear shaft and large gear transmission. The gear shaft and gear shaft transmission system requires a gear guard. During pump maintenance, the gear guard gasket is easily damaged and needs to be replaced. Traditional gear guards all have flat gaskets. Because there's no unified standard for the shape and threaded hole positions of the gear guard gasket and observation window gasket, fracturing pumps from different manufacturers and models have different gear guards and observation window gaskets, making maintenance difficult. Some models are even unavailable at the original manufacturer, resulting in low maintenance efficiency and high replacement costs. Utility Model Content

[0003] Purpose of the utility model: In order to solve the defects of the prior art, the utility model provides a gear shield with a sealing groove for a fracturing pump, which is convenient for replacing the seal when the pump is repaired.

[0004] Technical solution: In order to achieve the above purpose, the utility model adopts the following technical solution:

[0005] A gear guard with a sealing groove for a fracturing pump comprises a flange, a large arc plate, a small arc plate, a straight bottom plate, a straight side plate, an observation window plate and a panel. The flange is an irregular ring with one end larger than the other, and its side wall is provided with a first annular sealing groove; the panel is an irregular flat plate corresponding to the shape of the flange, the large arc plate and the small arc plate are both arc-shaped, and the straight bottom plate and the straight side plate are both rectangular. The large arc plate, the straight bottom plate, the small arc plate and the straight side plate are connected in sequence at their ends to form an annular structure with the same shape as the flange, one side of the annular structure is connected to the side wall of the flange where the first annular sealing groove is not provided, and the other side is connected to the edge of the panel to constitute the overall structure of the gear guard; a hole is opened in the middle of the straight side plate, and an observation window plate with an annular structure is mounted on the hole, and a second annular sealing groove is provided on the surface of the observation window plate.

[0006] As a specific implementation scheme, a lifting ear hole is provided on the top of the flange.

[0007] As a specific implementation scheme, the large arc plate is formed by rolling a long rectangular plate into a circle, corresponding to the large gear covering the fracturing pump; the small arc plate is formed by rolling a long rectangular plate into a circle, corresponding to the small gear covering the fracturing pump.

[0008] As a specific implementation scheme, the panel surface is provided with a large hole and a small hole, which respectively correspond to the center of the large gear shaft and the center of the small gear shaft of the fracturing pump.

[0009] As a specific implementation, the annular shape of the first annular sealing groove is the same as the annular shape of the flange.

[0010] As a specific embodiment, the annular shape of the second annular sealing groove is the same as that of the observation window plate.

[0011] As a specific implementation scheme, the side wall of the flange is provided with threaded holes for connecting the large arc plate, the straight bottom plate, the small arc plate and the straight side plate.

[0012] As a specific implementation scheme, the surface of the observation window plate is provided with threaded holes for installing the observation window cover.

[0013] Beneficial Effects: To address the difficulty in maintaining the gear shield gasket and observation window gasket of a fracturing pump, the present invention designs a gear shield with a sealing groove for a fracturing pump. This shield provides an annular sealing groove on the flange and the observation window plate, allowing an O-ring to replace a special-shaped flat gasket. As long as the diameter of the O-ring matches the sealing groove, sealing can be achieved. The O-ring can be lengthened by cutting or gluing and placed in the sealing groove, making installation, replacement, and maintenance simple. Therefore, the present invention solves the problem of difficult matching of the gear shield gasket during fracturing pump maintenance, replacing special-shaped flat gaskets with a universal O-ring, resulting in a simple design and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded view of the structure of the present invention.

[0015] Figure 2 This is a finished product diagram of the present utility model.

[0016] Figure 3 This is a structural schematic diagram of the first annular sealing groove on the flange in the present invention (partial screenshot of the flange).

[0017] Figure 4 This is a schematic structural diagram of the second annular sealing groove on the observation window plate in the present invention. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Example

[0020] A gear shield with a sealing groove for a fracturing pump, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, it includes a flange 1, a large arc plate 2, a small arc plate 3, a straight bottom plate 4, a straight side plate 5, an observation window plate 6 and a panel 7. The flange 1 is an irregular ring with one end larger than the other end, and its side wall is provided with a first annular sealing groove 11; the panel 7 is an irregular flat plate corresponding to the shape of the flange 1, the large arc plate 2 and the small arc plate 3 are both arc-shaped, the straight bottom plate 4 and the straight side plate 5 are both rectangular, the large arc plate 2, the straight bottom plate 4, the small arc plate 3 and the straight side plate 5 are connected in sequence at their ends to form an annular structure with the same shape as the flange 1, one side of the annular structure is connected to the side wall of the flange 1 where the first annular sealing groove 11 is not provided, and the other side is connected to the edge of the panel 7, forming the overall structure of the gear guard; the straight side plate 5 has a hole in the middle, and an observation window plate 6 with an annular structure is fitted on the hole, and a second annular sealing groove 61 is provided on the surface of the observation window plate 6.

[0021] The specific design and function of each part are as follows:

[0022] The flange 1 is an irregular ring, made of steel material, with one end larger than the other end. There is a lifting ear hole 12 on the top of the flange plate. The lifting ear hole is formed by blanking. After the overall shield is welded, the first annular sealing groove 11 and the threaded hole are processed on the end face. The threaded hole is used to connect the large arc plate 2, the straight bottom plate 4, the small arc plate 3 and the straight side plate 5.

[0023] The large arc plate 2 is formed by rolling a long rectangular steel plate into a round shape, corresponding to the large gear covering the fracturing pump.

[0024] The small arc plate 3 is a long rectangular steel plate, which is rounded and covers the small gear of the fracturing pump.

[0025] The straight bottom plate 4 is a steel rectangular plate used to connect the large arc plate 2 and the small arc plate 3.

[0026] The straight side plate 5 is a steel rectangular plate used to connect the large arc plate 2 and the small arc plate 3. There is a hole in the middle for fitting the observation window plate 6.

[0027] The observation window plate 6 is a relatively thick steel long arc-shaped plate, having a second annular sealing groove 61 and a threaded hole. The second annular sealing groove 61 is used for installing the sealing strip, and the threaded hole is used for installing the observation window cover.

[0028] The panel 7 is an irregular flat plate corresponding to the shape of the flange 1 , with a large hole 71 and a small hole 72 provided on the surface, corresponding to the center of the large gear shaft and the center of the small gear shaft of the fracturing pump respectively.

[0029] The annular shape of the first annular sealing groove 11 is the same as that of the flange 1 . The annular shape of the second annular sealing groove 61 is the same as that of the observation window plate 6 .

[0030] During processing, first seal and weld the straight side plate 5 with the observation window plate 6 with the second annular sealing groove 61 and the threaded hole, then align the flange 1, large arc plate 2, small arc plate 3, straight bottom plate 4, straight side plate 5 and panel 7 without the sealing groove through the tooling assembly and seal and weld them; finally, process the first annular sealing groove 11 and the threaded mounting hole on the flange 1.

[0031] Since the shield is provided with a first annular sealing groove 11 and a second annular sealing groove 61, during the maintenance process, it is only necessary to use an O-ring to replace the special-shaped flat sealing gasket. As long as the diameter of the O-ring matches the first annular sealing groove 11 and the second annular sealing groove 61, sealing can be achieved. The O-ring can be lengthened by cutting and gluing and placed in the first annular sealing groove 11 and the second annular sealing groove 61. The special-shaped flat sealing gasket is replaced by a universal O-ring, which is easy to install, replace and maintain.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear shield with a sealing groove for a fracturing pump, characterized in that: The invention comprises a flange (1), a large arc plate (2), a small arc plate (3), a straight bottom plate (4), a straight side plate (5), an observation window plate (6) and a panel (7), wherein the flange (1) is an irregular ring with one end larger than the other end, and a first annular sealing groove (11) is provided on its side wall; the panel (7) is an irregular flat plate corresponding to the shape of the flange (1), the large arc plate (2) and the small arc plate (3) are both arc-shaped, the straight bottom plate (4) and the straight side plate (5) are both rectangular, the large arc plate (2) and the straight bottom plate are (4), the small arc plate (3) and the straight side plate (5) are connected in sequence at their ends to form an annular structure having the same shape as the flange (1), one side of the annular structure is connected to the side wall of the flange (1) where the first annular sealing groove (11) is not provided, and the other side is connected to the edge of the panel (7), thereby forming the overall structure of the gear shield; the straight side plate (5) has a hole in the middle, and an observation window plate (6) with an annular structure is mounted on the hole, and a second annular sealing groove (61) is provided on the surface of the observation window plate (6).

2. The gear shield with sealing groove for a fracturing pump according to claim 1, characterized in that: The top of the flange (1) is provided with a lifting ear hole (12).

3. The gear guard with sealing groove for a fracturing pump according to claim 1, characterized in that: The large arc plate (2) is formed by rolling a long rectangular plate into a circle, and corresponds to covering the large gear of the fracturing pump; the small arc plate (3) is formed by rolling a long rectangular plate into a circle, and corresponds to covering the small gear of the fracturing pump.

4. The gear shield with sealing groove for a fracturing pump according to claim 1, characterized in that: The surface of the panel (7) is provided with a large hole (71) and a small hole (72), which correspond to the center of the large gear shaft and the center of the small gear shaft of the fracturing pump respectively.

5. The gear shield with sealing groove for a fracturing pump according to claim 1, characterized in that: The annular shape of the first annular sealing groove (11) is the same as the annular shape of the flange (1).

6. The gear shield with sealing groove for a fracturing pump according to claim 1, characterized in that: The annular shape of the second annular sealing groove (61) is the same as the annular shape of the observation window plate (6).

7. The gear shield with sealing groove for a fracturing pump according to claim 1, characterized in that: The side wall of the flange (1) is provided with threaded holes for connecting the large arc plate (2), the straight bottom plate (4), the small arc plate (3) and the straight side plate (5).

8. The gear shield with sealing groove for a fracturing pump according to claim 1, characterized in that: The surface of the observation window plate (6) is provided with a threaded hole for installing the observation window cover plate.

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