Precision detection device for installation of large plunger rod

Abstract

The utility model relates to a precision detection device for large plunger rod installation, which comprises a workbench and a detection assembly installed above the workbench, the detection assembly comprises a fixing ring, a guide rod and a double-shaft cylinder, an installation plate is installed on the surface of the workbench in a sliding mode, the fixing ring is fixedly installed on the outer wall above the installation plate, and the guide rod is installed on the outer wall above the installation plate. A center ring is arranged at the center of the fixing ring, four guide rods are evenly arranged on the outer wall of the center ring and fixedly installed between the center ring and the fixing ring, double-shaft air cylinders are movably installed on the outer walls of the four guide rods, and the output ends of the double-shaft air cylinders face the center of the fixing ring. The inductor is embedded in the center of the output end of the double-shaft air cylinder, the stability and the installation strength of the plunger rods can be detected more comprehensively through the plunger rods in multiple directions of the double-shaft air cylinder, meanwhile, the deviation condition of the plunger rods is sensed through the inductor, and the detection precision and accuracy are improved.

Description

Technical Field

[0001] This utility model relates to the field of plunger rod technology, and in particular to a precision detection device for installing large plunger rods. Background Technology

[0002] After the plunger pump is installed, the stability and installation strength of the plunger rod need to be tested. During the test, the plunger pump is fixed in place, and a device with a pushing force, such as a cylinder, is used to apply a thrust to the plunger rod. The displacement of the plunger rod is then observed.

[0003] Operators mostly rely on visual observation of the plunger rod's offset, but visual observation is not precise enough and cannot accurately record offset data. Utility Model Content

[0004] The purpose of this application is to provide a precision testing device for the installation of large plunger rods, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A precision testing device for installing a large plunger rod includes a worktable and a testing assembly mounted on the worktable. The testing assembly includes a fixed ring, guide rods, and dual-axis cylinders. A mounting plate is slidably mounted on the worktable surface. The fixed ring is fixedly mounted on the upper outer wall of the mounting plate. A central ring is provided at the center of the fixed ring. Four guide rods are evenly arranged on the outer wall of the central ring. The guide rods are fixedly mounted between the central ring and the fixed ring. Dual-axis cylinders are movably mounted on the outer walls of the four guide rods. The output end of the dual-axis cylinder faces the center of the fixed ring, and a sensor is embedded at the center of the output end of the dual-axis cylinder.

[0007] Preferably, the workbench surface has a sliding groove, the edge of the mounting plate is fixedly installed with a fitting plate, the fitting plate is embedded in the sliding groove, a telescopic cylinder is fixedly installed in the sliding groove, and the output end of the telescopic cylinder is fixedly connected to the fitting plate.

[0008] Preferably, a movable plate is fixedly installed on the outer wall of the dual-axis cylinder, and sleeves are fitted around the four guide rods. The sleeves are fixedly connected to the outer wall of the movable plate, and the dual-axis cylinder is arranged parallel to the guide rods. A motor is fixedly installed above the mounting plate, and a screw is fixedly installed at the output end of the motor. The end of the screw is connected to the inner wall of the central ring through a bearing, and a slider is fitted around the outside of the screw. A connecting rod is movably installed between the outer wall of the slider and each sleeve. One end of the connecting rod is rotatably connected to the outer wall of the slider, and the other end is rotatably connected to the outer wall of the sleeve.

[0009] The beneficial effects of this utility model are: by setting up a detection component and a multi-directional plunger rod of a dual-axis cylinder, the stability and installation strength of the plunger rod can be detected more comprehensively. At the same time, a sensor detects the displacement of the plunger rod, thereby improving the detection accuracy and precision. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the overall (another perspective) structure of this utility model;

[0012] Figure 3 In this utility model Figure 1 A magnified schematic diagram of a portion of region A in the middle;

[0013] Figure 4 In this utility model Figure 2 A magnified schematic diagram of a portion of region B in the middle section;

[0014] Figure 5 In this utility model Figure 2 A magnified schematic diagram of the central C region;

[0015] In the diagram: 1. Workbench; 2. Mounting plate; 3. Telescopic cylinder; 4. Fixing ring; 5. Guide rod; 6. Dual-axis cylinder; 7. Motor; 8. Slider; 9. Connecting rod; 10. Slide groove; 11. Screw; 12. Sensor; 13. Center ring; 14. Moving plate; 15. Sleeve. Detailed Implementation

[0016] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0017] like Figure 1-5The device shown is a precision testing device for installing a large plunger rod, including a worktable 1 and a testing assembly mounted on the worktable 1. The testing assembly includes a fixed ring 4, guide rods 5, and a dual-axis cylinder 6. A mounting plate 2 is slidably mounted on the worktable 1. The fixed ring 4 is fixedly mounted on the upper outer wall of the mounting plate 2. A central ring 13 is provided at the center of the fixed ring 4. Four guide rods 5 are evenly arranged on the outer wall of the central ring 13. The guide rods 5 are fixedly mounted between the central ring 13 and the fixed ring 4. A dual-axis cylinder 6 is movably mounted on the outer wall of each of the four guide rods 5. The output end of the dual-axis cylinder 6 faces the center of the fixed ring 4. A sensor 12 is embedded at the center of the output end of the dual-axis cylinder 6.

[0018] The workbench 1 has a slide groove 10 on its surface. A fitting plate is fixedly installed on the edge of the mounting plate 2. The fitting plate is embedded in the slide groove 10. A telescopic cylinder 3 is fixedly installed inside the slide groove 10. The output end of the telescopic cylinder 3 is fixedly connected to the fitting plate.

[0019] A movable plate 14 is fixedly installed on the outer wall of the dual-axis cylinder 6. Sleeves 15 are fitted around the four guide rods 5, and the sleeves 15 are fixedly connected to the outer wall of the movable plate 14. The dual-axis cylinder 6 is arranged parallel to the guide rods 5. A motor 7 is fixedly installed above the mounting plate 2. A screw 11 is fixedly installed at the output end of the motor 7. The end of the screw 11 is connected to the inner wall of the central ring 13 via a bearing. A slider 8 is fitted around the outside of the screw 11. A connecting rod 9 is movably installed between the outer wall of the slider 8 and each sleeve 15. One end of the connecting rod 9 is rotatably connected to the outer wall of the slider 8, and the other end is rotatably connected to the outer wall of the sleeve 15.

[0020] Example: The installed plunger pump is placed on an external testing platform. The plunger rod end of the plunger pump is placed at the center of the fixing ring 4. The motor 7 is started, driving the screw 11 to rotate between the motor 7 and the central ring 13. The screw 11 drives the slider 8 to slide on the screw 11. The slider 8 drives the four connecting rods 9 to move. The connecting rods 9 drive the sleeve 15 to slide on the outer wall of the guide rod 5. The sleeve 15 drives the dual-axis cylinder 6 to move through the moving plate 14. The operator adjusts the number of rotations of the motor 7 according to the tested plunger rod size so that the dual-axis cylinder 6 reaches the appropriate position and is distributed on the outer wall of the plunger rod. Four biaxial cylinders 6 are evenly distributed around the end of the plunger rod, symmetrically arranged in pairs. The sensor 12 operates using microwave induction; it emits microwaves of a certain length, receives the reflected microwave signal upon contact with an object, and the distance between the sensor 12 at the output end of each biaxial cylinder 6 and the outer wall of the plunger rod is slightly greater than the maximum microwave emission distance of the sensor 12. When the output end of a single biaxial cylinder 6 extends a certain length, the sensor 12 at that cylinder's output end remains inactive, while the other sensors 12 activate. The biaxial cylinders 6 exert a pushing force on the plunger rod. If the plunger rod is properly installed and structurally stable, the displacement distance is limited, and the sensor 12 on the corresponding biaxial cylinder 6 will not detect the outer wall of the plunger rod, thus not emitting an electrical signal. If all four biaxial cylinders 6 extend sequentially and none of the sensors 12 emit an electrical signal, it indicates that the plunger rod is installed correctly. Conversely, if sensor 12 detects the outer wall of the plunger rod and sends an electrical signal, it indicates that the plunger rod has become loose after being subjected to thrust, which is defined as an unqualified installation.

[0021] The telescopic cylinder 3 is located inside the slide groove 10 of the worktable 1. It adjusts the position of the mounting plate 2 by telescopic output end, so that the detection component can adapt to and detect various types of plunger rods.

[0022] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0023] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A precision testing device for installing large plunger rods, comprising a worktable (1) and a testing assembly mounted above the worktable (1), characterized in that: The detection assembly includes a fixed ring (4), guide rods (5), and a dual-axis cylinder (6). A mounting plate (2) is slidably installed on the table surface of the workbench (1). The fixed ring (4) is fixedly installed on the upper outer wall of the mounting plate (2). A central ring (13) is provided at the center of the fixed ring (4). Four guide rods (5) are evenly arranged on the outer wall of the central ring (13). The guide rods (5) are fixedly installed between the central ring (13) and the fixed ring (4). A dual-axis cylinder (6) is movably installed on the outer wall of each of the four guide rods (5). The output end of the dual-axis cylinder (6) faces the center of the fixed ring (4). A sensor (12) is embedded at the center of the output end of the dual-axis cylinder (6).

2. The precision detection device for installing a large plunger rod according to claim 1, characterized in that: A movable plate (14) is fixedly installed on the outer wall of the dual-axis cylinder (6), and a sleeve (15) is fitted on the outside of each of the four guide rods (5). The sleeve (15) is fixedly connected to the outer wall of the movable plate (14), and the dual-axis cylinder (6) is arranged parallel to the guide rods (5).

3. The precision detection device for installing a large plunger rod according to claim 2, characterized in that: A motor (7) is fixedly installed on the top of the mounting plate (2). A screw (11) is fixedly installed on the output end of the motor (7). The end of the screw (11) is connected to the inner wall of the central ring (13) through a bearing. A slider (8) is installed on the outside of the screw (11). A connecting rod (9) is movably installed between the outer wall of the slider (8) and each sleeve (15).

4. The precision detection device for installing a large plunger rod according to claim 3, characterized in that: One end of the connecting rod (9) is rotatably connected to the outer wall of the slider (8), and the other end is rotatably connected to the outer wall of the sleeve (15).

5. The precision detection device for installing a large plunger rod according to claim 1, characterized in that: The workbench (1) has a sliding groove (10) on its surface. A fitting plate is fixedly installed on the edge of the mounting plate (2). The fitting plate is embedded in the sliding groove (10). A telescopic cylinder (3) is fixedly installed inside the sliding groove (10). The output end of the telescopic cylinder (3) is fixedly connected to the fitting plate.

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