A testing device for eccentric arch elasticity

Abstract

The utility model provides a kind of testing device for eccentricity arch elasticity, comprising: fixed tooling, laser range finder, pressing plate, and the lifting mechanism being connected with pressing plate, and setting in the pressure sensor of pressing plate lower surface, fixed tooling will eccentricity arch be located the both ends of bottom fixed, and the top of eccentricity arch has horizontal part, pressing plate is pressed on the upper surface of horizontal part by pressure sensor, and laser range finder is set in the immediate lower portion of horizontal part.The utility model can make eccentricity arch keep stable, and improve test efficiency and accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of well logging equipment technology, specifically, it relates to a testing device for the elasticity of eccentric bows. Background Technology

[0002] During elemental logging, if the probe's radioactive source fails to adhere to the wellbore, measurement deviations occur, significantly impacting the logging results. An eccentric bow, by applying elastic centralizing force, provides suitable adhesion to the probe's radioactive source, enabling more accurate logging and preventing jamming. Therefore, elastic measurement of the eccentric bow before insertion is crucial for ensuring accurate logging data. Currently, existing eccentric bows typically undergo elastic measurement using a hand-operated force gauge before insertion. However, manual pressure application by the operator leads to instability during testing, resulting in low efficiency and accuracy. Utility Model Content

[0003] One objective of this invention is to provide a testing device for the elasticity of an eccentric bow, so as to keep the eccentric bow stable and improve testing efficiency and accuracy.

[0004] According to this utility model, a testing device for the elasticity of an eccentric bow is provided, comprising: a fixing fixture, a laser rangefinder, a pressure plate, a lifting mechanism connected to the pressure plate, and a pressure sensor disposed on the lower surface of the pressure plate. The fixing fixture fixes the two ends of the eccentric bow located at the bottom, and the top of the eccentric bow has a horizontal part. The pressure plate is pressed against the upper surface of the horizontal part by the pressure sensor, and the laser rangefinder is disposed directly below the horizontal part.

[0005] In a preferred embodiment, the lifting mechanism includes a rocker arm and a lead screw, the output end of the rocker arm is connected to the lead screw, the lead screw is vertically arranged and a lifting block is threadedly connected to it, the side of the lifting block is fixed to a lifting platform, and the side of the lifting platform is fixedly connected to the side of the pressure plate.

[0006] In a preferred embodiment, the testing device for the elasticity of an eccentric bow further includes: a threaded component and two clamping blocks disposed opposite each other, the lead screw being disposed between the two clamping blocks, and the threaded component passing through the two clamping blocks and being threadedly connected to both.

[0007] In a preferred embodiment, the lifting mechanism is fixedly mounted on the bracket.

[0008] In a preferred embodiment, the testing device for the elasticity of the eccentric bow further includes a support platform, wherein the support, the laser rangefinder, and the fixing fixture are all disposed on the upper surface of the support platform.

[0009] In a preferred embodiment, the testing device for the elasticity of the eccentric bow further includes a force display connected to the pressure sensor, the force display being used to receive and read the pressure data detected by the pressure sensor.

[0010] In a preferred embodiment, the horizontal portion is parallel to the upper surface of the support platform.

[0011] In a preferred embodiment, the force display is mounted on the bracket.

[0012] In a preferred embodiment, the fixing fixture includes two fixed rails, each fixed rail comprising two parallel side rails, and the end of the eccentric bow is snapped between the two side rails.

[0013] In a preferred embodiment, the pressure sensor is a resistive pressure sensor.

[0014] This utility model has at least the following technical effects: According to this utility model, a fixing fixture, a laser rangefinder, a pressure plate, a lifting mechanism connected to the pressure plate, and a pressure sensor disposed on the lower surface of the pressure plate are provided. The fixing fixture fixes both ends of the bottom of the eccentric bow, and the top of the eccentric bow has a horizontal part. The pressure plate is pressed against the upper surface of the horizontal part by the pressure sensor, and the laser rangefinder is disposed directly below the horizontal part. The lifting mechanism drives the pressure plate to move downward and press down on the horizontal part. The pressure sensor records the pressure data, and the laser rangefinder records the vertical movement distance of the horizontal part. Thus, during the testing process, the eccentric bow remains stable, and the testing efficiency and accuracy are improved. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a testing device for the elasticity of an eccentric bow according to an embodiment of the present invention is shown. Figure 2 A schematic diagram of the overall structure of the lifting mechanism of a testing device for the elasticity of an eccentric bow according to an embodiment of the present invention is shown. Figure 3 A schematic diagram of the overall structure of the fixture for testing the elasticity of an eccentric bow according to an embodiment of the present invention is shown.

[0016] In this application, all the accompanying drawings are schematic drawings, used only to illustrate the principle of the present invention, and are not drawn to scale. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of the utility model, it should be understood that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the 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 the utility model.

[0019] In this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] like Figure 1 As shown, this utility model provides a testing device 100 for the elasticity of an eccentric bow, including: a pressure plate 7, a lifting mechanism 1 connected to the pressure plate 7, a pressure sensor 2 disposed on the lower surface of the pressure plate 7, a fixing fixture 5, and a laser rangefinder 6. When no external force is applied to the eccentric bow 4, the eccentric bow 4 naturally bends upwards with both ends at the bottom. The fixing fixture 5 fixes the two ends of the eccentric bow 4 at the bottom, and the top of the eccentric bow 4 has a horizontal portion. The pressure plate 7 is pressed against the upper surface of the horizontal portion of the eccentric bow 4 by the pressure sensor 2. The laser rangefinder 6 is disposed directly below the horizontal portion of the eccentric bow 4, and the pressure plate 7 is parallel to the horizontal portion. The lifting mechanism 1 can drive the pressure plate 7 to move downwards and press down on the horizontal portion of the eccentric bow 4. The laser rangefinder 6 records the vertical movement distance of the horizontal portion of the eccentric bow 4 and whether the horizontal portion has moved a set distance in the vertical direction (i.e., whether the eccentric bow 4 has reached a set deformation). After the horizontal part moves a preset distance in the vertical direction, the pressure on the horizontal part of the eccentric bow 4 is stopped, and the pressure data at this time is recorded by the pressure sensor 2.

[0021] According to this utility model, a fixing fixture 5, a laser rangefinder 6, a pressure plate 7, a lifting mechanism 1 connected to the pressure plate 7, and a pressure sensor 2 disposed on the lower surface of the pressure plate 7 are provided. The fixing fixture 5 fixes both ends of the bottom of the eccentric bow 4, and the top of the eccentric bow 4 has a horizontal part. The pressure plate 7 is pressed against the upper surface of the horizontal part by the pressure sensor 2. The laser rangefinder 6 is disposed directly below the horizontal part, thereby enabling the eccentric bow 4 to remain stable during the testing process and improving testing efficiency and accuracy.

[0022] like Figure 2 As shown, in one or more embodiments, the lifting mechanism 1 includes a rocker arm and a lead screw. The output end of the rocker arm is connected to the lead screw, which is vertically arranged and fitted with a lifting block threadedly connected to it. The side of the lifting block is fixed to the lifting platform 11. Under the driving action of the rocker arm, the lifting platform 11 can move vertically. The side of the lifting platform 11 is fixedly connected to the side of the pressure plate 7. The lifting mechanism 1 is fixedly mounted on the bracket 12. It should be noted that the lifting mechanism 1 can also use other existing structures that can achieve vertical lifting.

[0023] In one or more embodiments, the testing device 100 for the elasticity of an eccentric bow according to this invention further includes: a threaded component and two clamping blocks arranged opposite each other, a lead screw disposed between the two clamping blocks, and the threaded component passing through the two clamping blocks and threadedly connected to them. After the horizontal part moves a preset distance in the vertical direction, tightening the threaded component can restrict the movement of the lead screw, thereby facilitating the reading of pressure data by the pressure sensor 2. The threaded component can be a bolt.

[0024] like Figure 3 As shown, in one or more embodiments, the fixed fixture 5 includes two fixed rails 51, each fixed rail 51 including two parallel side rails, and the end of the eccentric bow 4 is snapped between the two side rails.

[0025] In one or more embodiments, pressure sensor 2 is a resistive pressure sensor.

[0026] In one or more embodiments, the testing device 100 for the elasticity of an eccentric bow according to the present invention further includes: a support platform 7, a bracket 12, a laser rangefinder 6, and a fixing fixture 5, all disposed on the upper surface of the support platform 7, with the horizontal part parallel to the upper surface of the support platform 7, and a fixing track 51 fixedly disposed on the upper surface of the support platform 7.

[0027] In one or more embodiments, the testing device 100 for the elasticity of an eccentric bow according to this invention further includes a force display 3 connected to the pressure sensor 2, the force display 3 being used to receive and read the pressure data detected by the pressure sensor 2. Optionally, the force display 3 is fixedly mounted on the bracket 12.

[0028] The following is a brief description of the usage process of the testing device 100 for the elasticity of eccentric bows described in this utility model.

[0029] Install the eccentric bow 4 on the fixed fixture 5; drive the pressure plate 7 to press down the horizontal part of the eccentric bow 4 through the lifting mechanism 1, and read the displacement data of the horizontal part along the vertical direction through the laser rangefinder 6 to confirm that the deformation of the eccentric bow 4 has reached the preset value; after confirming that the deformation of the eccentric bow 4 has reached the preset value, tighten the threaded parts to ensure that the screw is fixed, and then read the pressure value of the eccentric bow 4 through the force value display 3; repeat the above operation and take the average value as the final test result of the eccentric bow elasticity test.

[0030] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A testing device for the elasticity of an eccentric bow, characterized in that, include: The fixture includes a fixed fixture, a laser rangefinder, a pressure plate, a lifting mechanism connected to the pressure plate, and a pressure sensor disposed on the lower surface of the pressure plate. The fixed fixture fixes the two ends of the eccentric bow located at the bottom, and the top of the eccentric bow has a horizontal part. The pressure plate is pressed against the upper surface of the horizontal part by the pressure sensor, and the laser rangefinder is disposed directly below the horizontal part.

2. The testing device for the elasticity of an eccentric bow according to claim 1, characterized in that, The lifting mechanism includes a rocker arm and a lead screw. The output end of the rocker arm is connected to the lead screw. The lead screw is vertically arranged and a lifting block is threadedly connected to it. The side of the lifting block is fixed to a lifting platform. The side of the lifting platform is fixedly connected to the side of the pressure plate.

3. The testing device for the elasticity of an eccentric bow according to claim 2, characterized in that, Also includes: A threaded component and two clamping blocks arranged opposite each other, the lead screw being disposed between the two clamping blocks, the threaded component passing through the two clamping blocks and being threadedly connected to both.

4. The testing apparatus for the elasticity of an eccentric bow according to any one of claims 1 to 3, characterized in that, The lifting mechanism is fixedly mounted on the support.

5. The testing device for the elasticity of an eccentric bow according to claim 4, characterized in that, Also includes: The support platform, the bracket, the laser rangefinder, and the fixing fixture are all disposed on the upper surface of the support platform.

6. The testing device for the elasticity of an eccentric bow according to claim 4, characterized in that, Also includes: A force display connected to the pressure sensor is used to receive and read the pressure data detected by the pressure sensor.

7. The testing device for the elasticity of an eccentric bow according to claim 5, characterized in that, The horizontal section is parallel to the upper surface of the support platform.

8. The testing device for the elasticity of an eccentric bow according to claim 6, characterized in that, The force display is mounted on the bracket.

9. The testing apparatus for the elasticity of an eccentric bow according to any one of claims 5 to 8, characterized in that, The fixed fixture includes two fixed rails, each consisting of two parallel side rails, with the end of the eccentric bow snapped between the two side rails.

10. The testing apparatus for the elasticity of an eccentric bow according to claim 1 or 2, characterized in that, The pressure sensor is a resistive pressure sensor.

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