Pulser torque test workbench

Abstract

The utility model discloses a pulser torque test workbench, and belongs to the technical field of rotary valve test. A pulser torque testing workbench comprises a workbench body, a testing module is arranged on the workbench body, the pulser torque testing workbench further comprises a base fixedly arranged on the workbench body, a pair of sliding blocks are arranged on the base in a sliding mode, and clamping plates of an arc-shaped structure are fixedly arranged at the tops of the sliding blocks. Clamping pads are fixedly arranged on the inner walls of the clamping plates, driving parts used for driving the sliding blocks to slide are arranged on the base, and when the driving parts work, the pair of sliding blocks are close to or away from each other; the base is fixedly arranged on the workbench body, the pair of clamping plates of the arc-shaped structures are arranged on the base in the sliding mode, and the clamping pads are fixedly arranged on the inner walls of the clamping plates, so that on one hand, the sliding phenomenon between the rotary valve pulser and the clamping plates can be reduced, and on the other hand, a shell of the rotary valve pulser can be prevented from being damaged by clamping; the use effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of rotary valve testing technology, and in particular to a pulser torque testing workbench. Background Technology

[0002] A rotary valve pulser is a mud pulse signal generator used in oil drilling and logging. It is primarily used in wireless measurement-while-drilling (MWD) or logging-while-drilling (LWD) systems to transmit downhole data to the surface by controlling pressure changes in the drilling mud (drilling fluid). Its core principle is to generate pressure pulse signals by periodically opening and closing a rotary valve to change the mud flow channel area. To verify design parameters and assess mechanical reliability, the torque of the rotary valve pulser needs to be tested.

[0003] Currently, the testing equipment mainly includes: a drive system, a torque sensor, a load simulation device, a control and data acquisition system, and a fixing fixture. In use, the rotary valve pulser under test is mounted on the test bench, and the torque sensor, drive motor, and load simulation device are connected. According to the test requirements, relevant parameters, such as the target speed and load level, are input into the control system. Then, the drive motor is started to rotate the rotary valve pulser, and simultaneously, the loading device applies a predetermined load. The torque sensor monitors and records the torque value output by the pulser in real time, transmitting it to the data acquisition card for processing. The data acquisition card converts the analog signal into a digital signal, which is then sent to a computer for further analysis to obtain the data.

[0004] In the prior art, the clamps for fixing rotary valves are usually clamped using bench vises. However, since the outer wall of the rotary valve is generally cylindrical, slippage is likely to occur during clamping, and the rotary valve may also be damaged, affecting its performance. Utility Model Content

[0005] The purpose of this invention is to solve the problem that rotary valve pulsers are prone to slippage and damage when clamped in the prior art, and to propose a pulser torque testing workbench.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A pulser torque testing workbench includes a workbench body, on which a testing module is mounted, and a base fixedly mounted on the workbench body. A pair of sliders are slidably mounted on the base, and an arc-shaped clamping plate is fixedly mounted on the top of each slider. A clamping pad is fixedly mounted on the inner wall of the clamping plate, and a driving part for driving the sliders to slide is provided on the base. When the driving part is working, the pair of sliders move closer to or further away from each other.

[0008] To facilitate clamping of the driving clamping plates, preferably, the driving unit includes a bidirectional lead screw, a limiting groove is provided on the base, the bidirectional lead screw is rotatably disposed in the limiting groove, one end of a pair of sliders extending into the limiting groove is threadedly connected to both ends of the bidirectional lead screw, and a handle is fixedly provided at one end of the bidirectional lead screw extending out of the base.

[0009] To increase the friction between the clamping pad and the workpiece, preferably, the inner wall of the clamping pad is fixedly provided with strip-shaped protrusions.

[0010] In order to increase the friction between the clamping pad and the workpiece in both the axial and radial directions, the strip-shaped protrusions are further distributed in a mesh pattern.

[0011] Preferably, a first support rod is provided on the base, a first support plate is fixedly provided on the top of the first support rod, a first limiting plate is fixedly provided at one end of the first support rod that passes through the base, and a first spring is sleeved on the first support rod, with the two ends of the first spring abutting against the first support plate and the base respectively.

[0012] Preferably, the base has a guide groove, a mounting seat is slidably disposed in the guide groove, a second support rod is raised and lowered on the mounting seat, a second support plate is fixedly disposed on the top of the second support rod, a second limiting plate is fixedly disposed on one end of the second support rod passing through the mounting seat, and a second spring is sleeved on the second support rod, with the two ends of the second spring abutting against the second support plate and the base respectively.

[0013] Compared with the prior art, the present invention provides a pulser torque testing workbench, which has the following advantages:

[0014] 1. The pulser torque testing workbench has a base fixedly installed on the workbench body, and a pair of arc-shaped clamping plates are slidably installed on the base. A clamping pad is fixedly installed on the inner wall of the clamping plate. On the one hand, it can reduce the sliding phenomenon between the rotary valve pulser and the clamping plate, and on the other hand, it can avoid damaging the outer shell of the rotary valve pulser, thus improving the performance.

[0015] 2. The pulse torque testing workbench has strip-shaped protrusions fixedly set on the inner wall of the clamping pad, which can increase the friction between the clamping pad and the outer wall of the workpiece, improve the fixing effect, and reduce slippage. Moreover, we prefer the strip-shaped protrusions to be distributed in a mesh pattern, which can improve the anti-slip effect in both the axial and radial directions.

[0016] The parts not mentioned in this device are the same as or can be implemented using existing technology. This utility model fixes a base on the workbench body, slides a pair of arc-shaped clamping plates on the base, and fixes a clamping pad on the inner wall of the clamping plates. On the one hand, it can reduce the sliding phenomenon between the rotary valve pulser and the clamping plates, and on the other hand, it can avoid damaging the outer shell of the rotary valve pulser, thus improving the use effect. Attached Figure Description

[0017] Figure 1 This invention provides a schematic diagram of the structure of a pulser torque testing workbench. Figure 1 ;

[0018] Figure 2 This invention provides a schematic diagram of the structure of a pulser torque testing workbench. Figure 2 ;

[0019] Figure 3 This is a cross-sectional view of the base of a pulser torque testing workbench proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of a pulser torque testing workbench clamping plate proposed in this utility model.

[0021] In the figure: 1. Workbench body; 101. Test module; 2. Base; 201. Limiting groove; 202. Guide groove; 3. Slider; 301. Clamping plate; 4. Clamping pad; 5. First support plate; 501. Second support plate; 6. Mounting seat. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 utility model 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 utility model.

[0024] Example:

[0025] Reference Figures 1-4A pulse generator torque testing workbench includes a workbench body 1, on which a testing module 101 is mounted. The rotating shaft of a rotary valve pulse generator is detachably connected to the output end of the testing module 101 via a flexible coupling. The testing module 101 includes a testing box fixedly mounted on the workbench body 1, containing a drive motor, a torque sensor, and a load simulation device. In use, the rotary valve pulse generator to be tested is mounted on the testing workbench, and the torque sensor, drive motor, and load simulation device are connected. According to the testing requirements, relevant parameters, such as target speed and load level, are input into the control system. Then, the drive motor is started to rotate the rotary valve pulse generator, and a predetermined load is applied simultaneously by the loading device. The torque sensor monitors and records the torque value output by the pulse generator in real time and transmits it to a data acquisition card for processing. The data acquisition card converts the analog signal into a digital signal and sends it to a computer for further analysis to obtain data. The load simulation device can be an electromagnetic loader, a hydraulic loader, or a friction loader. Here, we prefer an electromagnetic loader, which is usually mounted on the rotating shaft and directly connected to the drive motor or pulse generator. When current passes through the coil, a magnetic field is generated. This magnetic field interacts with the rotating component to generate a reverse torque to simulate a load. The system also includes a base 2 fixedly mounted on the workbench body 1, a pair of sliders 3 slidably mounted on the base 2, an arc-shaped clamping plate 301 fixedly mounted on the top of the sliders 3, and a clamping pad 4 fixedly mounted on the inner wall of the clamping plate 301. The clamping pad 4 is made of rubber, polyurethane, or nylon. Here, we prefer rubber. The base 2 is provided with a drive unit for driving the sliders 3 to slide. When the drive unit is working, the pair of sliders 3 move closer or further apart to clamp the rotary valve pulser.

[0026] In use, a base 2 is fixedly installed on the workbench body 1, and a pair of arc-shaped clamping plates 301 are slidably installed on the base 2. A clamping pad 4 is fixedly installed on the inner wall of the clamping plate 301. On the one hand, the sliding phenomenon between the rotary valve pulser and the clamping plate 301 can be reduced, and on the other hand, the outer shell of the rotary valve pulser can be prevented from being damaged, thus improving the use effect.

[0027] Reference Figures 1-3 Here, we design the drive unit as a bidirectional lead screw with self-locking threads. A limit groove 201 is provided on the base 2, and the bidirectional lead screw is rotatably set in the limit groove 201. One end of a pair of sliders 3 extending into the limit groove 201 is threadedly connected to the two ends of the bidirectional lead screw. A handle is fixedly provided at one end of the bidirectional lead screw extending out of the base 2. In use, the bidirectional lead screw is driven to rotate by the handle, which can drive the pair of sliders 3 to move closer and further apart. The two sets of clamping plates 301 can clamp or release the workpiece, improving the usage effect.

[0028] Reference Figure 4Strip-shaped protrusions are fixedly provided on the inner wall of the clamping pad 4. During use, by fixing strip-shaped protrusions on the inner wall of the clamping pad 4, the friction between the clamping pad 4 and the outer wall of the workpiece can be increased, the fixing effect can be improved, and the slippage can be reduced. Moreover, we prefer the strip-shaped protrusions to be distributed in a mesh pattern, which can improve the anti-slip effect in both the axial and radial directions.

[0029] Reference Figures 1-3 A first support rod is raised and lowered on the base 2, and a first support plate 5 is fixedly installed on the top of the first support rod. A first limiting plate is fixedly installed at one end of the first support rod that passes through the base 2, and a first spring is sleeved on the first support rod. The two ends of the first spring abut against the first support plate 5 and the base 2 respectively. In use, by raising and lowering the first support plate 5 on the base 2, after the clamping plate 301 fixes the workpiece, the first support plate 5 can provide auxiliary support for the workpiece under the elastic force of the first spring, thereby improving the use effect.

[0030] Reference Figures 1-3 A guide groove 202 is provided on the base 2, and a mounting seat 6 is slidably arranged in the guide groove 202. A second support rod is raised and lowered on the mounting seat 6, and a second support plate 501 is fixedly arranged on the top of the second support rod. A second limiting plate is fixedly arranged at one end of the second support rod that passes through the mounting seat 6, and a second spring is sleeved on the second support rod. The two ends of the second spring abut against the second support plate 501 and the base 2, respectively. In use, by sliding the mounting seat 6 on the base 2 and raising and lowering the second support plate 501 on the mounting seat 6, it can provide auxiliary support for the end of the workpiece away from the clamping plate 301. On the other hand, by sliding the mounting seat 6, it can support workpieces of different lengths, thereby improving the range of use.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pulse generator torque testing workbench, comprising a workbench body (1), wherein a testing module (101) is disposed on the workbench body (1), characterized in that, It also includes a base (2) that is fixedly installed on the workbench body (1). Among them, a pair of sliders (3) are slidably arranged on the base (2), and a clamping plate (301) with an arc structure is fixedly arranged on the top of the slider (3). A clamping pad (4) is fixedly arranged on the inner wall of the clamping plate (301), and a driving part for driving the slider (3) to slide is provided on the base (2). When the driving part is working, the pair of sliders (3) move closer to each other or further away.

2. The pulse generator torque testing workbench according to claim 1, characterized in that, The drive unit includes a bidirectional lead screw, and a limiting groove (201) is provided on the base (2). The bidirectional lead screw is rotatably disposed in the limiting groove (201). One end of a pair of sliders (3) extending into the limiting groove (201) is threadedly connected to the two ends of the bidirectional lead screw, and a handle is fixedly provided at one end of the bidirectional lead screw extending out of the base (2).

3. The pulse generator torque testing workbench according to claim 1, characterized in that, The inner wall of the clamping pad (4) is fixedly provided with strip-shaped protrusions.

4. The pulse generator torque testing workbench according to claim 3, characterized in that, The strip-shaped protrusions are distributed in a mesh pattern.

5. The pulse generator torque testing workbench according to claim 1, characterized in that, The base (2) is provided with a first support rod that is raised and lowered. A first support plate (5) is fixedly provided on the top of the first support rod. A first limiting plate is fixedly provided at one end of the first support rod that passes through the base (2). A first spring is sleeved on the first support rod. The two ends of the first spring abut against the first support plate (5) and the base (2) respectively.

6. The pulse generator torque testing workbench according to claim 1, characterized in that, The base (2) is provided with a guide groove (202), and a mounting seat (6) is slidably arranged in the guide groove (202). A second support rod is raised and lowered on the mounting seat (6). A second support plate (501) is fixedly arranged on the top of the second support rod. A second limiting plate is fixedly arranged at one end of the second support rod that passes through the mounting seat (6). A second spring is sleeved on the second support rod. The two ends of the second spring abut against the second support plate (501) and the base (2) respectively.

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