Mud pump center pull rod support structure and mud pump

Abstract

The utility model belongs to slurry pump equipment technical field, specifically provides a slurry pump center pull rod support structure and slurry pump. Slurry pump center pull rod support structure includes balance lever, connecting plate, support piece and support wheel, two balance levers are about pull rod symmetrical arrangement, and one end of balance lever is connected with pull rod through connecting plate, and the other end is slidably connected with slurry pump body. Support piece is arranged below balance lever, support wheel is rotatably arranged on support piece, support wheel is abutted with balance lever, is used for carrying out radial support to balance lever, improves the overall stiffness of balance lever. Balance lever, support piece and support wheel jointly act, can support the lateral force that pull rod receives, reduce the probability that pull rod occurs bending deformation because of lateral force, prolong the service life of pull rod, alleviate the work burden of maintenance personnel.

Description

Technical Field

[0001] This application belongs to the technical field of mud pump equipment, specifically a mud pump center tie rod support structure and a mud pump. Background Technology

[0002] The center tie rod (referred to as the tie rod) is a moving component on the mud pump. It is connected to the gearbox and performs linear reciprocating motion during mud pump operation. During prolonged drilling operations on the HT-150L exploration drilling rig, the mud contains a large amount of abrasive solid particles (such as drill cuttings and barite). This imbalance in force can cause the tie rod to wear unevenly and deform. Deformation of the tie rod leads to accelerated wear of the internal water seal, slider, and shift fork, resulting in leaks. Leaks require repair. Due to the compact structure of the drilling rig and limited maintenance space, replacing parts is inconvenient. Frequent repairs not only affect equipment use but also increase the workload of maintenance personnel. Utility Model Content

[0003] Based on the above-mentioned technical problems, this application provides a mud pump center tie rod support structure and a mud pump to solve the technical problem that the tie rod is prone to deformation due to unbalanced force during the use of the mud pump in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, this application provides a mud pump center tie rod support structure for connecting to a tie rod on the mud pump body, comprising: Two balance bars are symmetrically arranged about the tie rod, the balance bars are arranged parallel to the tie rod, and the balance bars slide in conjunction with the mud pump body along their own axial direction; The connecting plate is fixedly connected to both the end of the balance bar and the end of the tie rod. Two support members are correspondingly installed on the balance bar. Each support member is fixed to the mud pump body and has a clearance groove extending through its own thickness along the axial direction of the tie rod. The balance bar passes through the corresponding clearance groove. At least two support wheels are respectively disposed on two of the support members. The support wheels are rotatably disposed in the clearance groove about a horizontal axis. The rotation axis of the support wheel is perpendicular to the central axis of the balance bar. At least one of the support wheels is located above the balance bar, and the outer peripheral wall of the support wheel abuts against the balance bar.

[0005] In one possible implementation, the balance bar and the tie rod are at the same horizontal height.

[0006] In one possible implementation, the bottom of the support member is provided with a vertical connecting screw, the bottom of the mud pump body is provided with a fixing plate, the connecting screw passes through the fixing plate, and the connecting screw is threaded with two nuts, the two nuts being located on the upper and lower sides of the fixing plate respectively.

[0007] In one possible implementation, the mud pump center tie rod support structure further includes an anti-sway support rod, which is horizontal or at an angle to the horizontal plane. One end of the anti-sway support rod is connected to the support member, and the other end is connected to the mud pump body.

[0008] In one possible implementation, each of the clearance slots is provided with a support wheel, which is located above the balance bar.

[0009] In one possible implementation, the bottom of the clearance groove is provided with an arc-shaped groove that slides with the outer wall of the balance bar.

[0010] In one possible implementation, two support wheels are arranged vertically opposite each other about the balance bar.

[0011] In one possible implementation, the support wheel is characterized as a bearing.

[0012] In one possible implementation, the clearance groove is formed by two plates that are parallel to each other and spaced apart.

[0013] Compared with the prior art, the beneficial effects of the mud pump center tie rod support structure provided in this application are: The mud pump center tie rod support structure provided in this application includes a balance bar, a connecting plate, a support member, and a support wheel. Two balance bars are symmetrically arranged about the tie rod. One end of each balance bar is connected to the tie rod via the connecting plate, and the other end slides into the mud pump body. The support member is located below the balance bar, and the support wheel is rotatably mounted on the support member, abutting against the balance bar to provide radial support and improve the overall rigidity of the balance bar. The balance bar, support member, and support wheel work together to support the lateral forces acting on the tie rod, reducing the probability of bending deformation due to lateral forces, extending the service life of the tie rod, and reducing the workload of maintenance personnel.

[0014] Secondly, this application provides a mud pump, comprising: The mud pump body has the horizontally arranged tie rod, which is movably disposed on the mud pump body along its own axial direction; and The mud pump center tie rod support structure as described in any of the above implementations.

[0015] The mud pump provided in this application adopts the mud pump center tie rod support structure described in any of the above implementation methods, and has the same technical effect, which will not be repeated here. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a partial schematic diagram of the mud pump center tie rod support structure installed on the mud pump body according to one embodiment of this application; Figure 2 A structural schematic diagram of one feasible implementation of the support component, support wheel, and anti-sway rod; Figure 3 A structural diagram showing another feasible implementation of the support component and support wheel; Figure 4 This is a schematic diagram illustrating the cooperation between the support component and the support wheel, representing another feasible implementation method, and the balance bar. Figure 5 A partial schematic diagram showing the installation of a mud pump center tie rod support structure onto the mud pump body, according to another embodiment of this application; Explanation of reference numerals in the attached figures: 10. Balance bar; 20. Connecting plate; 30. Support component; 31. Connecting screw; 32. Clearance groove; 33. Nut; 40. Support wheel; 50. Anti-sway support rod; 60. Mud pump body; 61. Tie rod; Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0023] Please refer to the following: Figures 1 to 5 The following describes the mud pump center tie rod support structure and mud pump provided in the embodiments of this application.

[0024] In a first aspect, embodiments of this application provide a mud pump center tie rod support structure for connecting to a tie rod 61 on the mud pump body 60, including two balance bars 10, a connecting plate 20, two support members 30, and at least two support wheels 40.

[0025] Two balance bars 10 are symmetrically arranged about the tie rod 61, parallel to the tie rod 61, and at the same horizontal height. The balance bars 10 slide along their own axial direction with the mud pump body 60. The connecting plate 20 is fixedly connected to both the end of the balance bar 10 and the end of the tie rod 61. Two support members 30 are respectively provided on the corresponding balance bars 10, fixedly provided on the mud pump body 60, and have a clearance groove 32 extending through their own thickness along the axial direction of the tie rod 61. The balance bars 10 pass through the corresponding clearance groove 32. At least two support wheels 40 are respectively provided on the two support members 30. The support wheels 40 are rotatably provided in the clearance groove 32 about a horizontal axis. The rotation axis of the support wheels 40 is perpendicular to the central axis of the balance bar 10. At least one support wheel 40 is located above the balance bar 10, and the outer peripheral wall of the support wheel 40 abuts against the balance bar 10.

[0026] The balance bar 10 should be made of a metal rod with high material rigidity, such as carbon steel. One end of the balance bar 10 should be slidably engaged with the mud pump body 60, and a sliding sleeve should be provided on the mud pump body 60 to slidably engage with the balance bar 10. The connecting plate 20 is a long strip of plate, and the connecting plate 20 is fixedly connected to the balance bar 10 and the tie rod 61. The specific connection method can be welding or fasteners such as lock nuts 33.

[0027] The balance bar 10, connecting plate 20 and tie rod 61 together form a frame structure. All components are made of metal. Compared with a single bar, the overall structure has higher rigidity and is less prone to radial deformation due to lateral forces.

[0028] The support member 30 provides lateral support to the balance bar 10, preventing deformation of the balance bar 10 or tie rod 61 under lateral forces. The support member 30 is fixedly installed and has a clearance groove 32 through which the balance bar 10 passes. A support wheel 40 is rotatably mounted within the clearance groove 32. The surface of the support wheel 40 abuts against the balance bar 10. One or two support wheels 40 can be provided as needed. The support wheel 40 can be made of bearings, with the inner ring of the bearing connected to the shaft and the outer ring abutting against the balance bar 10.

[0029] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 When one support wheel 40 is provided, the support wheel 40 is located above the balance bar 10, and the bottom wall of the clearance groove 32 is used to support the balance bar 10. The bottom of the clearance groove 32 can be designed as an arc shape to fit the outer wall of the balance bar 10 and slide with the balance bar 10. The arc-shaped groove makes the balance bar 10 bear force evenly and improves its durability.

[0030] Please see Figure 5 When two support wheels 40 are provided, the two support wheels 40 are arranged vertically opposite each other about the balance bar 10, and are used to support the balance bar 10 from above and below respectively.

[0031] Compared with the prior art, the beneficial effects of the mud pump center tie rod support structure provided in this application embodiment are: The mud pump center tie rod support structure provided in this embodiment includes a balance bar 10, a connecting plate 20, a support member 30, and a support wheel 40. Two balance bars 10 are symmetrically arranged about the tie rod 61. One end of each balance bar 10 is connected to the tie rod 61 via the connecting plate 20, and the other end is slidably engaged with the mud pump body 60. The support member 30 is positioned below the balance bar 10, and the support wheel 40 is rotatably mounted on the support member 30. The support wheel 40 abuts against the balance bar 10, providing radial support and improving the overall rigidity of the balance bar 10. The balance bar 10, support member 30, and support wheel 40 work together to support the lateral forces acting on the tie rod 61, reducing the probability of bending deformation of the tie rod 61 due to lateral forces, extending the service life of the tie rod 61, and reducing the workload of maintenance personnel.

[0032] Please see Figures 2 to 4 A vertical connecting screw 31 is fixedly installed at the bottom of the support member 30. The clearance groove 32 is formed by two parallel and spaced plates. The plates and the connecting screw 31 are connected as one piece by welding. The support wheel 40 is fixedly connected to the plates through a rotating shaft. The bottom of the mud pump body 60 is provided with a fixed plate. The connecting screw 31 passes through the fixed plate. The connecting screw 31 is threaded with two nuts 33, which are located on the upper and lower sides of the fixed plate, respectively.

[0033] The fixing plate has a mounting hole for the connecting screw 31 to pass through. After the height of the connecting screw 31 is adjusted, the fixing plate and the connecting screw 31 are locked and fixed by the upper and lower nuts 33.

[0034] Please see Figure 1 , Figure 2 and Figure 5 To improve the stability of the support member 30, the mud pump center tie rod support structure also includes two anti-sway rods 50. The two anti-sway rods 50 are connected to the two support members 30 respectively. The anti-sway rods 50 are set horizontally or at an angle to the horizontal plane. One end of the anti-sway rod 50 is connected to the corresponding support member 30, and the other end is connected to the mud pump body 60. Screws or other fasteners can be used for fixing.

[0035] Secondly, this application provides a mud pump, including a mud pump body 60 and a mud pump central tie rod support structure. The mud pump body 60 is the existing HT-150L type exploration drilling rig mud pump product. Of course, it can also be applied to other models of mud pump products without departing from the working principle and usage method of this application embodiment.

[0036] like Figure 1 and Figure 5As shown, the mud pump body 60 has a horizontally arranged tie rod 61, which is movably mounted on the mud pump body 60 along its own axis; the mud pump center tie rod support structure is added to the mud pump body 60, which can balance and guide the tie rod, improve the stability of the tie rod, and extend the service life of the tie rod.

[0037] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that the present utility model specification has recorded each combined embodiment and can support different combined embodiments.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A central tie rod support structure for a mud pump, used for connecting to a tie rod (61) on the mud pump body (60), characterized in that, include: Two balance bars (10) are symmetrically arranged about the tie rod (61), the balance bars (10) are parallel to the tie rod (61), and the balance bars (10) slide in cooperation with the mud pump body (60) along their own axial direction; The connecting plate (20) is fixedly connected to both the end of the balance bar (10) and the end of the tie rod (61). Two support members (30) are correspondingly provided on the balance bar (10). The support members (30) are fixedly provided on the mud pump body (60) and have clearance grooves (32) extending through their own thickness along the axial direction of the tie rod (61). The balance bar (10) passes through the corresponding clearance grooves (32). At least two support wheels (40) are respectively provided on two support members (30). The support wheels (40) are rotatably provided in the clearance groove (32) about a horizontal axis. The rotation axis of the support wheel (40) is perpendicular to the central axis of the balance bar (10). At least one of the support wheels (40) is located above the balance bar (10). The outer peripheral wall of the support wheel (40) abuts against the balance bar (10).

2. The mud pump center tie rod support structure according to claim 1, characterized in that, The balance bar (10) and the tie rod (61) are at the same horizontal level.

3. The mud pump center tie rod support structure according to claim 1, characterized in that, The bottom of the support member (30) is provided with a vertical connecting screw (31), and the bottom of the mud pump body (60) is provided with a fixing plate. The connecting screw (31) passes through the fixing plate, and the connecting screw (31) is threaded with two nuts (33). The two nuts (33) are located on the upper and lower sides of the fixing plate respectively.

4. The mud pump center tie rod support structure according to claim 3, characterized in that, The mud pump center tie rod support structure also includes an anti-sway support rod (50), which is set horizontally or at an angle to the horizontal plane. One end of the anti-sway support rod (50) is connected to the support member (30), and the other end is connected to the mud pump body (60).

5. The mud pump center tie rod support structure according to claim 1, characterized in that, Each of the clearance slots (32) is provided with a support wheel (40), which is located above the balance bar (10).

6. The mud pump center tie rod support structure according to claim 5, characterized in that, The bottom of the clearance groove (32) is provided with an arc-shaped groove that slides with the outer wall of the balance bar (10).

7. The mud pump center tie rod support structure according to claim 1, characterized in that, The support wheels (40) are arranged in two opposite directions about the balance bar (10).

8. The mud pump center tie rod support structure according to any one of claims 1 to 7, characterized in that, The support wheel (40) is a bearing.

9. The mud pump center tie rod support structure according to claim 1, characterized in that, The clearance groove (32) is formed by two plates that are parallel to each other and spaced apart.

10. A mud pump, characterized in that, include: The mud pump body (60) has the horizontally arranged tie rod (61), which is movably disposed on the mud pump body (60) along its own axial direction; and The mud pump center tie rod support structure as described in any one of claims 1 to 9.

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