Slurry pump fluid end vibration signal acquisition device

Abstract

The utility model belongs to the technical field of slurry pump signal acquisition, and particularly relates to a slurry pump fluid end vibration signal acquisition device which comprises a slurry pump fluid end, a mounting plate is arranged on one side of the slurry pump fluid end, and first threaded rods are in threaded connection with four end corner positions of the mounting plate. A vibration sensor is installed on the side, away from the first threaded rod, of the installation plate, a wire is arranged on the outer side of the vibration sensor, a protection shell is installed on the side, close to the vibration sensor, of the installation plate and located on the outer side of the vibration sensor, and a limiting structure is arranged between the installation plate and the first threaded rod. The limiting structure is used for limiting rotation of the first threaded rod and comprises a tangent plane arranged on one side of the first threaded rod. According to the utility model, the problem of device separation caused by vibration can be effectively prevented while the signal acquisition accuracy is ensured, so that the monitoring efficiency and safety of the fluid end of the slurry pump are improved.

Description

Technical Field

[0001] This utility model belongs to the field of mud pump signal acquisition technology, specifically relating to a mud pump hydraulic end vibration signal acquisition device. Background Technology

[0002] Mud pumps are widely used equipment in fields such as oil drilling and geological exploration. As a key part of the pump, its hydraulic end undertakes the important task of conveying mud. During the operation of mud pumps, the hydraulic end is subjected to various complex forces, which generate vibration. The acquisition of vibration signals is of great significance for monitoring the operating status of mud pumps, preventing failures, and extending service life. However, existing vibration signal acquisition devices have some problems in installation and use, which affect the accuracy and reliability of signal acquisition.

[0003] Currently, vibration signal acquisition devices for the hydraulic end of mud pumps are usually installed on the hydraulic end using bolts. However, due to the harsh working environment and high vibration intensity of mud pumps, long-term operation can cause the bolts to loosen or even fall off, causing the signal acquisition device to detach from the hydraulic end. Once detached, signal acquisition will be interrupted, affecting the continuity and accuracy of the data.

[0004] Therefore, there is an urgent need for a new type of vibration signal acquisition device for the hydraulic end of a mud pump. Utility Model Content

[0005] The purpose of this invention is to provide a vibration signal acquisition device for the hydraulic end of a mud pump, which can effectively prevent the device from detaching due to vibration while ensuring the accuracy of signal acquisition, thereby improving the monitoring efficiency and safety of the hydraulic end of the mud pump.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A vibration signal acquisition device for the hydraulic end of a mud pump includes a hydraulic end of a mud pump. A mounting plate is provided on one side of the hydraulic end of the mud pump. First threaded rods are threadedly connected to the four corners of the mounting plate, and the first threaded rods are threadedly connected to the hydraulic end of the mud pump. A vibration sensor is installed on the side of the mounting plate away from the first threaded rods. A wire is provided on the outside of the vibration sensor. A protective shell is installed on the side of the mounting plate close to the vibration sensor and outside the vibration sensor.

[0008] A limiting structure is provided between the mounting plate and the first threaded rod, and the limiting structure is used to restrict the rotation of the first threaded rod.

[0009] The limiting structure includes a cross-section disposed on one side of the first threaded rod, a sliding piece sleeved on the outer side of the first threaded rod, a limiting strip fixed inside the sliding piece, and the limiting strip inserted into the mounting plate and located at the position corresponding to the cross-section.

[0010] The sliding plate has multiple second threaded rods internally threaded, and each of the multiple second threaded rods is threadedly connected to the mounting plate. A fixing plate is fixed on the side of the second threaded rod away from the sliding plate, and a snap-fit ​​structure is installed between the fixing plate and the sliding plate. The snap-fit ​​structure is used to clamp the fixing plate.

[0011] The snap-fit ​​structure includes an installation groove provided on the side of the sliding piece near the fixed piece and on the outside of the second threaded rod. The installation groove is provided with second snap-fit ​​blocks evenly arranged inside. The fixed piece is fixed with a first snap-fit ​​block on the side near the second snap-fit ​​block and at the position corresponding to the second snap-fit ​​block. The first snap-fit ​​block and the second snap-fit ​​block snap-fit ​​each other.

[0012] The second card block and the first card block are made of flexible material.

[0013] The mounting plate is rotatably connected to a winding roller on the side near the vibration sensor. The winding roller passes through the protective shell and extends to the outside of the protective shell. A limiting groove is provided inside the winding roller. The wire passes through the limiting groove and is wound around the outside of the limiting groove.

[0014] The winding roller is interference-fitted with the protective shell and the mounting plate.

[0015] The technical effects achieved by this utility model are as follows:

[0016] This invention restricts the first threaded rod by screwing it in and by inserting a limiting strip, thereby ensuring the accuracy of signal acquisition while effectively preventing the device from detaching due to vibration, thus improving the monitoring efficiency and safety of the hydraulic end of the mud pump. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the structure between the mounting plate, the winding roller, and the first threaded rod in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure between the cross-section, the sliding piece, and the limiting strip in this utility model;

[0020] Figure 4This is a schematic diagram of the structure between the first locking block, the second locking block, and the second threaded rod in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure between the conductor, the winding roller, and the limiting groove in this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Hydraulic end of mud pump; 2. Mounting plate; 3. Vibration sensor; 4. Wire; 5. Protective shell; 6. First threaded rod; 7. Cross-section; 8. Sliding plate; 9. Limiting strip; 10. Second threaded rod; 11. Mounting groove; 12. First locking block; 13. Second locking block; 14. Winding roller; 15. Limiting groove; 16. Fixing plate. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figures 1-5 As shown, a vibration signal acquisition device for the hydraulic end of a mud pump includes a hydraulic end 1 of a mud pump. A mounting plate 2 is provided on one side of the hydraulic end 1. First threaded rods 6 are threadedly connected to the four corners of the mounting plate 2, and the first threaded rods 6 are threadedly connected to the hydraulic end 1 of the mud pump. A vibration sensor 3 is installed on the side of the mounting plate 2 away from the first threaded rods 6. The vibration sensor 3 can detect vibration in one direction or vibration in multiple directions. The user can view the signal of the vibration sensor 3 through a display screen. The vibration sensor 3 is installed on the mounting plate 2, and the vibration of the hydraulic end 1 of the mud pump is detected by the vibration sensor 3, thereby realizing the acquisition of vibration signals. A wire 4 is provided on the outside of the vibration sensor 3. A protective shell 5 is installed on the side of the mounting plate 2 close to the vibration sensor 3 and on the outside of the vibration sensor 3.

[0026] By screwing the first threaded rod 6 onto the mounting plate 2 and the hydraulic end 1 of the mud pump, the mounting plate 2 is fixed onto the hydraulic end 1 of the mud pump, thereby installing the vibration sensor 3 onto the hydraulic end 1 of the mud pump and fixing the vibration sensor 3.

[0027] A limiting structure is provided between the mounting plate 2 and the first threaded rod 6. The limiting structure is used to restrict the rotation of the first threaded rod 6.

[0028] See attached document Figure 3The limiting structure includes a cut surface 7 on one side of the first threaded rod 6, a sliding piece 8 sleeved on the outside of the first threaded rod 6, a limiting strip 9 fixed inside the sliding piece 8, and the limiting strip 9 inserted into the mounting plate 2 and located at the corresponding position of the cut surface 7.

[0029] After the first threaded rod 6 is screwed on, the sliding plate 8 and the limiting strip 9 can be inserted into the position where the mounting plate 2 is threaded with the first threaded rod 6, so that the limiting strip 9 and the cut surface 7 fit together. During the normal use of the hydraulic end 1 of the mud pump, the hydraulic end 1 of the mud pump vibrates, and the limiting strip 9 is inserted into the mounting plate 2 but is not threaded with the mounting plate 2, thus restricting the rotation of the first threaded rod 6 and preventing the first threaded rod 6 from becoming loose.

[0030] The sliding plate 8 has multiple second threaded rods 10 internally connected, and the multiple second threaded rods 10 are respectively threaded to the mounting plate 2. A fixing plate 16 is fixed on the side of the second threaded rod 10 away from the sliding plate 8. By inserting the second threaded rod 10 between the sliding plate 8 and the mounting plate 2 and screwing the second threaded rod 10, the second threaded rod 10 fixes the sliding plate 8 and the mounting plate 2 together. A snap-fit ​​structure is installed between the fixing plate 16 and the sliding plate 8. The snap-fit ​​structure is used to clamp the fixing plate 16.

[0031] See attached document Figure 4 The snap-fit ​​structure includes a mounting groove 11 located on the side of the sliding piece 8 near the fixed piece 16 and outside the second threaded rod 10. Second snap-fit ​​blocks 13 are evenly arranged inside the mounting groove 11. A first snap-fit ​​block 12 is fixed on the side of the fixed piece 16 near the second snap-fit ​​block 13 and at a corresponding position. The first snap-fit ​​block 12 and the second snap-fit ​​block 13 snap-fit ​​together. The first snap-fit ​​block 12 and the second snap-fit ​​block 13 are symmetrically arranged. The sides of the first snap-fit ​​block 12 and the second snap-fit ​​block 13 that are close to each other are inclined surfaces. This allows the first snap-fit ​​block 12 to rotate when the second threaded rod 10 is tightened, causing the inclined surfaces of the first snap-fit ​​block 12 and the second snap-fit ​​block 13 to approach each other. The first locking block 12 gradually moves until it no longer contacts the second locking block 13. At this time, the right-angled surfaces of the first locking block 12 and the second locking block 13 come into contact with each other, so that the second threaded rod 10 can be turned in the tightening direction, but cannot be turned in the loosening direction through the right-angled surfaces of the first locking block 12 and the second locking block 13. The second locking block 13 and the first locking block 12 are made of flexible material. With this setting, when the first locking block 12 and the second locking block 13 come into contact and gradually approach each other, the first locking block 12 and the second locking block 13 deform. When the first locking block 12 and the second locking block 13 are separated from the contact, they will return to their original shape, thereby avoiding the phenomenon of the first locking block 12 and the second locking block 13 getting stuck. The specific material of the first locking block 12 and the second locking block 13 can be rubber or the like.

[0032] As the fixed plate 16 is rotated along with the sliding plate 8, the first locking block 12 can gradually move toward the direction of the second locking block 13 until the first locking block 12 and the second locking block 13 come into contact with each other. At this time, the first locking block 12 continues to rotate and moves to the position of the right angle surface of the second locking block 13, so that the second locking block 13 locks the first locking block 12, preventing the second threaded rod 10 from falling off.

[0033] See attached document Figure 5 The mounting plate 2 is rotatably connected to a winding roller 14 on the side near the vibration sensor 3. The winding roller 14 passes through the protective shell 5 and extends to the outside of the protective shell 5. The winding roller 14 has a limiting groove 15 inside. The wire 4 passes through the limiting groove 15 and is wound around the outside of the limiting groove 15. When winding the wire 4, the wire 4 can be inserted into the limiting groove 15 and the winding roller 14 can be rotated so that the winding roller 14 winds the wire 4 inserted into the limiting groove 15. When the vibration sensor 3 is close to the plug interface, the winding roller 14 can be rotated so that the winding roller 14 winds more wire 4, so that the overall length of the wire 4 is less. Furthermore, the winding roller 14 is interference-fitted with the protective shell 5 and the mounting plate 2. With this setting, the winding roller 14 will not easily rotate after rotating to a certain position.

[0034] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A slurry pump hydraulic end vibration signal acquisition device, comprising a slurry pump hydraulic end (1), characterized in that: The side of the mud pump fluid end (1) is provided with a mounting plate (2), four end corners of the mounting plate (2) are all threadedly connected with first threaded rods (6), the first threaded rods (6) are threadedly connected with the mud pump fluid end (1), a vibration sensor (3) is mounted on the side of the mounting plate (2) away from the first threaded rods (6), the outer side of the vibration sensor (3) is provided with a wire (4), and a protective shell (5) is mounted on the side of the mounting plate (2) close to the vibration sensor (3) and located at the outer side of the vibration sensor (3). A limiting structure is arranged between the mounting plate (2) and the first threaded rods (6), and the limiting structure is used for limiting rotation of the first threaded rods (6).

2. The mud pump hydraulic end vibration signal acquisition device according to claim 1, characterized in that: The limiting structure comprises a tangent plane (7) arranged on one side of the first threaded rods (6), the outer side of the first threaded rods (6) is sleeved with a sliding sheet (8), the inner side of the sliding sheet (8) is fixedly connected with a limiting strip (9), the limiting strip (9) is inserted into the mounting plate (2) and located at a position corresponding to the tangent plane (7). The inner side of the sliding sheet (8) is threadedly connected with a plurality of second threaded rods (10), the second threaded rods (10) are threadedly connected with the mounting plate (2), respectively, a fixed sheet (16) is fixedly connected to the side of the second threaded rods (10) away from the sliding sheet (8), a clamping structure is arranged between the fixed sheet (16) and the sliding sheet (8), and the clamping structure is used for clamping the fixed sheet (16).

3. The mud pump hydraulic end vibration signal acquisition device according to claim 2, characterized in that: The clamping structure comprises a mounting groove (11) arranged on the side of the sliding sheet (8) close to the fixed sheet (16) and located at the outer side of the second threaded rods (10), a plurality of second clamping blocks (13) are uniformly arranged in the mounting groove (11), a first clamping block (12) is fixedly connected to the side of the fixed sheet (16) close to the second clamping blocks (13) and located at a position corresponding to the second clamping blocks (13), and the first clamping block (12) and the second clamping blocks (13) are clamped with each other.

4. The slurry pump hydraulic end vibration signal acquisition device according to claim 3, characterized in that: The second clamping blocks (13) and the first clamping block (12) are made of flexible material.

5. The mud pump hydraulic end vibration signal acquisition device according to claim 1, characterized in that: The side of the mounting plate (2) close to the vibration sensor (3) is also rotationally connected with a winding roller (14), the winding roller (14) penetrates through the protective shell (5) and extends to the outer side of the protective shell (5), a limiting groove (15) is arranged in the winding roller (14), and the wire (4) penetrates through the limiting groove (15) and is wound on the outer side of the limiting groove (15).

6. The slurry pump hydraulic end vibration signal acquisition device according to claim 5, characterized in that: The winding roller (14) is in interference fit with the protective shell (5) and the mounting plate (2).

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