A fracturing vehicle plunger pump valve seat pulling tool

Abstract

The utility model discloses a fracturing vehicle plunger pump valve seat pulling tool, which includes: a support plate, a connecting rod rotatably connected to the upper surface of the support plate, a control plate fixedly connected to the upper end of the connecting rod, a contact claw rotatably connected to the side surface of the connecting rod, a connecting spring fixedly connected between the connecting rod and the contact claw, a positioning groove is provided on the upper surface of the support plate, a storage shell is fixedly connected to the upper surface of the support plate, a plurality of passage openings are provided on the side surface of the storage shell, and the passage openings are relatively distributed with the positioning grooves, a baffle is slidably connected to the surface of the connecting rod, the lower surface of the baffle is in close contact with the valve seat, the lower surface of the baffle is provided with a storage groove, and the support plate is located inside the storage groove. Through the above device, the pulling tool is prevented from being damaged by the pulling force, and the force uniformity of the valve seat is improved, while the convenience of carrying the pulling device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulling tools, in particular to a valve seat pulling tool for a fracturing vehicle plunger pump. Background Art

[0002] In the process of replacing and repairing the valve seat, the assistance of a pulling tool is required. However, the strength of a general pulling tool is poor. In the process of pulling out the valve seat, the tool may break. At the same time, the staff needs to frequently shake the tool for positioning, which seriously affects the practicability of the pulling tool. At the same time, the general pulling device is not convenient to carry and there is a hidden danger of damage during carrying. The "A Valve Seat Pulling Tool for a Fracturing Truck Plunger Pump" disclosed on the China Patent Network has an application number of "202220674575.1". The tool uses a baffle sleeve and a wedge block to improve the stability of the tool during use, but the tool cannot ensure the uniformity of the force on the valve seat during use, which affects the convenience of pulling out the valve seat. There is still a hidden danger of accidental damage to the tool during carrying the tool. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a valve seat pulling tool for a fracturing vehicle plunger pump, so as to improve the stability of the pulling tool during use, avoid damage to the pulling tool by pulling force, and improve the force uniformity of the valve seat during the process of pulling out the valve seat, while improving the convenience of carrying the pulling device and increasing the overall practicality of the valve seat pulling tool.

[0004] The utility model also provides a fracturing vehicle plunger pump valve seat pulling tool, a fracturing vehicle plunger pump valve seat pulling tool, including: a support plate, the upper surface of the support plate is rotatably connected to a connecting rod, the upper end of the connecting rod is fixedly connected to a control plate, the side surface of the connecting rod is rotatably connected to a contact claw, when the valve seat is pulled out, the contact claw is in close contact with the valve seat, a connecting spring is fixedly connected between the connecting rod and the contact claw, and a positioning groove is provided on the upper surface of the support plate. When the tool is used, the contact claw is located in a positioning groove. Inside the groove, the upper surface of the support plate is fixedly connected to a storage shell, the connection node between the connecting rod and the support plate, and the contact claw are all located inside the storage shell, the side surface of the storage shell is provided with a plurality of passage openings, the contact claws are deployed through the passage openings, and the passage openings are distributed relative to the positioning grooves, the surface of the connecting rod is slidably connected with a baffle, when the tool is used, the lower surface of the baffle is in close contact with the valve seat, the lower surface of the baffle is provided with a storage groove, when the tool is not used, the support plate is located inside the storage groove.

[0005] According to the utility model of a fracturing vehicle plunger pump valve seat pulling tool, the upper surface of the support plate is provided with a rotation groove, the rotation groove and the positioning groove are mutually connected, and the contact claw is located inside the rotation groove, thereby improving the smoothness of the connection rod rotation.

[0006] According to the fracturing vehicle plunger pump valve seat pulling tool described in the utility model, the interior of the receiving groove is fixedly connected with a rubber sleeve, and the inner wall of the rubber sleeve is in close contact with the surface of the support plate, thereby reducing the wear effect.

[0007] According to the fracturing vehicle plunger pump valve seat pulling tool described in the utility model, the upper surface of the baffle is fixedly connected with an annular oil storage bag, and the inner wall of the annular oil storage bag is in close contact with the connecting rod, so that lubricating oil can be added conveniently.

[0008] According to the fracturing vehicle plunger pump valve seat pulling tool described in the utility model, the surface of the baffle is provided with a guide groove, and the oil outlet of the annular oil storage bag is located in the guide groove, so as to facilitate the transfer of lubricating oil to the valve seat and the installation place.

[0009] According to the fracturing vehicle plunger pump valve seat pulling tool described in the utility model, an oil outlet auxiliary device is arranged between the control panel and the annular oil storage bag to facilitate the discharge of lubricating oil inside the oil storage bag.

[0010] According to the utility model of a fracturing vehicle plunger pump valve seat pulling tool, the oil outlet auxiliary device is composed of an automatic telescopic rod and a pressure plate, which makes the oil outlet auxiliary device convenient to use.

[0011] According to the fracturing vehicle plunger pump valve seat pulling tool described in the utility model, the internal space of the storage shell is larger than the diameter of the contact claw in the storage state, ensuring that the contact claw rotates normally in the protective cover.

[0012] Beneficial Effects

[0013] 1. Compared with the prior art, the valve seat pulling tool of the fracturing vehicle plunger pump improves the uniformity of force on the valve seat during the pulling out process through the support plate, contact grip, rotation groove, positioning groove and baffle, avoids the valve seat from tilting and getting stuck, and improves the convenience of pulling out the valve seat.

[0014] 2. Compared with the prior art, the valve seat pulling tool of the fracturing vehicle plunger pump improves the convenience of carrying the pulling tool through the storage shell, connecting spring, storage groove and rubber sleeve, and reduces the accidental damage of the pulling tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1This is a left-side structural diagram of a fracturing vehicle plunger pump valve seat pulling tool in a top-down state according to the utility model;

[0017] Figure 2 This is a right-side structural diagram of a fracturing vehicle plunger pump valve seat pulling tool in a top-down state according to the utility model;

[0018] Figure 3 This is a right-side structural diagram of a fracturing vehicle plunger pump valve seat pulling tool in an upward state;

[0019] Figure 4 This is a left-side structural diagram of a fracturing vehicle plunger pump valve seat pulling tool in an upward state.

[0020] Legend:

[0021] 1. Support plate; 2. Connecting rod; 3. Contact claw; 4. Rotating groove; 5. Baffle; 6. Annular oil storage bag; 7. Diversion groove; 8. Storage shell; 9. Passage opening; 10. Connecting spring; 11. Storage groove; 12. Oil outlet auxiliary device; 13. Control panel; 14. Rubber sleeve; 15. Automatic telescopic rod; 16. Pressure plate; 17. Positioning groove. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4 The utility model embodiment of a fracturing vehicle plunger pump valve seat pulling tool comprises: a support plate 1, the upper surface of the support plate 1 is rotatably connected with a connecting rod 2, the upper end of the connecting rod 2 is fixedly connected with a control plate 13, and the side surface of the connecting rod 2 is rotatably connected with a contact claw 3. When the valve seat is pulled out, the contact claw 3 is in close contact with the valve seat. The above devices cooperate with each other to form the basic structure of the pulling tool. A connecting spring 10 is fixedly connected between the connecting rod 2 and the contact claw 3. The connecting spring 10 ensures that the contact claw 3 in the folded storage state automatically pops out and unfolds when there is no restriction. A positioning groove 17 is provided on the upper surface of the support plate 1. When the tool is used, the contact claw 3 is located inside the positioning groove 17. The positioning groove 17 improves the stability of the contact claw 3 when it acts and prevents the contact claw 3 from sliding on the surface of the valve seat. A rotating groove 4 is provided on the upper surface of the support plate 1. The rotating groove 4 and the positioning groove 17 are mutually connected. The contact claw 3 is located inside the rotating groove 4. The rotating groove 4 ensures that the connecting rod 2 can normally drive the contact claw 3 to rotate.

[0024] A storage shell 8 is fixedly connected to the upper surface of the support plate 1. The connection node between the connecting rod 2 and the support plate 1 and the contact claw 3 are all located inside the storage shell 8. The internal space of the storage shell 8 is larger than the diameter of the contact claw 3 in the stored state. The storage shell 8 is convenient for quickly storing the contact claw 3. A plurality of passage openings 9 are provided on the side surface of the storage shell 8. The contact claw 3 is unfolded through the passage openings 9, and the passage openings 9 are relatively distributed to the positioning groove 17. The passage openings 9 ensure that the contact claw 3 directly enters the interior of the positioning groove 17 when it pops out and unfolds.

[0025] The surface of the connecting rod 2 is slidably connected with a baffle plate 5. When the tool is used, the lower surface of the baffle plate 5 is in close contact with the valve seat. The baffle plate 5 cooperates with the support plate 1 and the contact claw 3 to ensure that the valve seat is evenly stressed during the rising process. A storage groove 11 is provided on the lower surface of the baffle plate 5. When the tool is not used, the support plate 1 is located inside the storage groove 11. The storage groove 11 improves the convenience of storing the support plate 1 and its related components. A rubber sleeve 14 is fixedly connected to the inside of the storage groove 11. The inner wall of the rubber sleeve 14 is in close contact with the surface of the support plate 1. The rubber sleeve 14 reduces the friction effect between the support plate 1 and the inner wall of the storage groove 11.

[0026] An annular oil storage bag 6 is fixedly connected to the upper surface of the baffle 5, and the inner wall of the annular oil storage bag 6 is in close contact with the connecting rod 2. A guide groove 7 is provided on the surface of the baffle 5, and the oil outlet of the annular oil storage bag 6 is located in the guide groove 7. An oil outlet auxiliary device 12 is provided between the control panel 13 and the annular oil storage bag 6. The oil outlet auxiliary device 12 is composed of an automatic telescopic rod 15 and a pressure plate 16. The above devices cooperate with each other to facilitate the addition of lubricating oil to the valve seat and its installation place, thereby reducing the friction during the process of pulling out the valve seat.

[0027] Working principle: first move the support plate 1 to the bottom of the valve seat, then rotate the connecting rod 2 to make the contact claw 3 pop out of the storage shell 8 through the passage opening 9, and then the valve seat can be pulled out. The support plate 1, contact claw 3, and baffle 5 cooperate with each other to ensure that the valve seat is evenly stressed. During the process of pulling out the valve seat, the automatic telescopic rod 15 is controlled to press down the annular oil storage bag 6 to spray lubricant. The lubricant is affected by the guide groove 7 and remains in the contact between the valve seat and its installation place, reducing the friction between the valve seat and its installation place. When storing the tool, manually press the connecting spring 10 to store the contact claw 3 into the inside of the storage shell 8, and then control the automatic telescopic rod 15 to press down the baffle 5, so that the support plate 1 completely enters the storage groove 11, wherein the rubber sleeve 14 reduces the friction effect between the support plate 1 and the inner wall of the storage groove 11.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A fracturing vehicle plunger pump valve seat pulling tool, characterized in that: include: A support plate (1), wherein the upper surface of the support plate (1) is rotatably connected to a connecting rod (2), the upper end of the connecting rod (2) is fixedly connected to a control plate (13), the side surface of the connecting rod (2) is rotatably connected to a contact claw (3), when the valve seat is pulled out, the contact claw (3) is in close contact with the valve seat, a connecting spring (10) is fixedly connected between the connecting rod (2) and the contact claw (3), and a positioning groove (17) is provided on the upper surface of the support plate (1), and when a tool is used, the contact claw (3) is located inside the positioning groove (17); The upper surface of the support plate (1) is fixedly connected to a storage shell (8); the connection node between the connection rod (2) and the support plate (1) and the contact claw (3) are both located inside the storage shell (8); the side surface of the storage shell (8) is provided with a plurality of passage openings (9); the contact claw (3) is extended through the passage openings (9), and the passage openings (9) are distributed relative to the positioning grooves (17); The surface of the connecting rod (2) is slidably connected with a baffle (5); when the tool is used, the lower surface of the baffle (5) is in close contact with the valve seat; the lower surface of the baffle (5) is provided with a receiving groove (11); when the tool is not used, the support plate (1) is located inside the receiving groove (11).

2. A fracturing vehicle plunger pump valve seat pulling tool according to claim 1, characterized in that: The upper surface of the support plate (1) is provided with a rotation groove (4), the rotation groove (4) and the positioning groove (17) are interconnected, and the contact claw (3) is located inside the rotation groove (4).

3. A fracturing vehicle plunger pump valve seat pulling tool according to claim 1, characterized in that: A rubber sleeve (14) is fixedly connected to the interior of the receiving groove (11), and the inner wall of the rubber sleeve (14) is in close contact with the surface of the support plate (1).

4. A fracturing vehicle plunger pump valve seat pulling tool according to claim 1, characterized in that: An annular oil storage bag (6) is fixedly connected to the upper surface of the baffle (5), and the inner wall of the annular oil storage bag (6) is in close contact with the connecting rod (2).

5. A fracturing vehicle plunger pump valve seat pulling tool according to claim 4, characterized in that: A flow guide groove (7) is provided on the surface of the baffle (5), and the oil outlet of the annular oil storage bag (6) is located in the flow guide groove (7).

6. A fracturing vehicle plunger pump valve seat pulling tool according to claim 4, characterized in that: An oil outlet auxiliary device (12) is provided between the control plate (13) and the annular oil storage bag (6).

7. A fracturing vehicle plunger pump valve seat pulling tool according to claim 6, characterized in that: The oil outlet auxiliary device (12) is composed of an automatic telescopic rod (15) and a pressing plate (16).

8. The valve seat pulling tool for a fracturing vehicle plunger pump according to claim 1, characterized in that: The internal space of the storage shell (8) is larger than the diameter of the contact claw (3) in the stored state.

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