Device for measuring the eccentric force of an eccentric bow

Abstract

The utility model relates to a device for measuring eccentric force of eccentric bow, including base, fixedly connected with displacement adjusting device on the base, be connected with the limit block on the base, the eccentric bow of measurement is placed between displacement adjusting device and limit block when measuring, displacement adjusting device can move to the direction close to limit block to compress the bow piece of eccentric bow, fixed with pressure measuring unit on displacement adjusting device, and pressure measuring unit is used for measuring eccentric force of eccentric bow, fixedly connected with the scale on the base, and the scale is used for measuring the compression amount of the bow piece of eccentric bow. The device of the utility model reduces the personnel quantity required for measurement, improves the efficiency of measurement, avoids the situation that the bow piece of eccentric bow bounces up and hurts people after being pressed.

Description

Technical Field

[0001] This utility model belongs to the field of testing device technology, specifically relating to a device for measuring the eccentric force of an eccentric bow. Background Technology

[0002] An eccentric bow is an auxiliary tool used in neutron logging. However, the magnitude of the eccentric force of the eccentric bow has a significant impact on the logging data. To improve the logging effect of neutron logging instruments and reduce the risk of downhole instruments getting stuck, the eccentric force of the eccentric bow needs to be kept within a certain range. Therefore, accurately measuring the eccentric force of the eccentric bow is particularly important.

[0003] Current technology for measuring the eccentric force of an eccentric bow requires the cooperation of four people. Specifically, one person needs to hold the eccentric bow steady, one person needs to press down on the eccentric bow with a measuring tool, one person needs to read the compressed size of the eccentric bow using a steel ruler, and one person needs to read the reading from the measuring tool. This method has the following problems: the pressure gauge head is prone to slipping under force, which could cause the eccentric bow to pop out and potentially injure personnel, posing a significant safety hazard; the measurement process requires multiple people to cooperate, resulting in low measurement efficiency.

[0004] Therefore, there is an urgent need for a device that can conveniently measure the eccentric force of an eccentric bow. Utility Model Content

[0005] In order to solve all or some of the above problems, the purpose of this utility model is to provide a device for measuring the eccentric force of an eccentric bow. The device of this utility model reduces the number of personnel required for measurement and improves the efficiency of measurement.

[0006] According to one aspect of the present invention, a device for measuring the eccentric force of an eccentric bow is provided, comprising a base, a displacement adjustment device fixedly connected to the base, a limit block connected to the base, wherein during measurement, the eccentric bow to be measured is placed between the displacement adjustment device and the limit block, the displacement adjustment device is movable toward the limit block to compress the bow limbs of the eccentric bow, a pressure measuring unit is fixedly connected to the displacement adjustment device for measuring the eccentric force of the eccentric bow, and a scale is fixedly connected to the base for measuring the compression of the bow limbs of the eccentric bow.

[0007] Furthermore, the displacement adjustment device includes two fixed blocks, both of which are fixed on the base. The limiting block is located on the same side of the two fixed blocks. A lead screw is rotatably connected between the two fixed blocks. A nut is sleeved on the lead screw, and a clamping block is fixedly connected to the nut. During measurement, the eccentric bow to be measured is placed between the clamping block and the limiting block. The pressure measuring unit is fixed on the side of the clamping block that contacts the eccentric bow.

[0008] Furthermore, one end of the lead screw away from the limiting block extends out of the corresponding fixing block, and a handwheel is connected to this end of the lead screw.

[0009] Furthermore, a stop block is connected to the upper end of the clamping block. The stop block, the clamping block, and the nut form a "C"-shaped structure with the opening facing the limiting block. During measurement, the bow plate of the eccentric bow is limited within the "C"-shaped structure, and the bow body of the eccentric bow contacts the side of the limiting block near the clamping block.

[0010] Furthermore, the pressure measuring unit includes a pressure sensor fixed on the clamping block on the side in contact with the eccentric bow. The pressure sensor is used to measure the eccentric force of the eccentric bow. The pressure sensor is connected to a digital display, which is used to display the eccentric force.

[0011] Furthermore, a placement box is fixedly connected to the end of the base away from the limiting block, and the digital display is placed inside the placement box.

[0012] Furthermore, a plug is fixedly connected to the lower end of the limiting block, and a slot is provided on the base. The limiting block is connected to the base through the cooperation of the plug and the slot.

[0013] Furthermore, the base is provided with a plurality of slots spaced apart along the compression direction of the eccentric bow.

[0014] Furthermore, a plug is fixedly connected to the base, and a slot is provided at the lower end of the limiting block. The limiting block is connected to the base through the cooperation of the plug and the slot.

[0015] Furthermore, the base is provided with a plurality of the inserts spaced apart along the compression direction of the eccentric bow.

[0016] As can be seen from the above technical solution, the device for measuring the eccentric force of an eccentric bow provided by this utility model has the following beneficial effects:

[0017] The device of this invention reduces the number of personnel required for measurement and improves measurement efficiency; the "C"-shaped structure formed by the stop block, clamping block and the nut prevents the eccentric bow limbs from springing up and injuring people after being compressed; the handwheel allows for easy rotation of the lead screw, thus facilitating the compression of the eccentric bow. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a device for measuring the eccentric force of an eccentric bow according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure formed by the clamping block and the stop block of this utility model;

[0020] Figure 3 for Figure 2 BB-direction sectional view;

[0021] The attached diagram is labeled as follows: base 1, slot 11, limit block 2, fixing block 3, nut 4, lead screw 5, clamping block 6, pressure sensor mounting hole 61, stop block 7, and placement box 8. Detailed Implementation

[0022] To better understand the purpose, structure, and function of this utility model, the following detailed description, in conjunction with the accompanying drawings, provides an embodiment of the device for measuring the eccentric force of an eccentric bow.

[0023] like Figure 1 As shown, this invention illustrates a device for measuring the eccentric force of an eccentric bow, comprising a base 1, a displacement adjustment device fixedly connected to the base 1, and a limit block 2 connected to the base 1. During measurement, the eccentric bow to be measured is placed between the displacement adjustment device and the limit block 2. The displacement adjustment device can move towards the limit block 2 to compress the bow segments of the eccentric bow. A pressure measuring unit is fixedly connected to the displacement adjustment device for measuring the eccentric force of the eccentric bow. A scale is fixedly connected to the base 1 for measuring the compression of the bow segments of the eccentric bow.

[0024] The device in this embodiment includes a base 1, a displacement adjustment device fixed on the base 1, and a limiting block 2. Before the measurement begins, the eccentric bow to be measured is limited between the displacement adjustment device and the limiting block 2. The displacement measuring device is connected to the pressure measuring unit, and the scale is fixed on the base 1. After the measurement begins, the displacement adjustment device is controlled to move closer to the limiting block 2 to compress the bow pieces of the eccentric bow. The compression amount of the bow pieces is read by the scale, and the corresponding eccentric force is read by the pressure measuring unit. The accuracy of the scale is 1mm.

[0025] Compared with existing technologies, this embodiment requires only one person to complete the corresponding measurements. Specifically, the operator adjusts the compression of the eccentric bow sequentially using a displacement adjustment device, and then reads the pressure corresponding to each compression level.

[0026] This invention allows one person to measure the eccentric force of an eccentric bow, thereby reducing the number of personnel required for measurement and improving measurement efficiency.

[0027] The displacement adjustment device includes two fixed blocks 3, both of which are fixed on the base 1. A limiting block 2 is set on the same side of the two fixed blocks 3. A lead screw 5 is rotatably connected between the two fixed blocks 3. A nut 4 is sleeved on the lead screw 5. A clamping block 6 is fixedly connected to the nut 4. During measurement, the eccentric bow to be measured is placed between the clamping block 6 and the limiting block 2. The pressure measuring unit is fixed on the side of the clamping block 6 that contacts the eccentric bow.

[0028] In this embodiment, the displacement adjustment device includes two fixing blocks 3 fixed on the base 1. The two fixing blocks 3 are located on the same side of the limiting block 2, for example... Figure 1 The two fixed blocks 3 shown are both located to the left of the limiting block 2; the lead screw 5 is rotatably connected to the two fixed blocks 3, and the clamping block 6 is fixed on the nut 4. The lead screw 5 and the nut 4 form a lead screw 5 and nut 4 pair. The lead screw 5 and nut 4 pair is set to convert the rotation of the lead screw 5 into the movement of the nut 4. The movement of the nut 4 drives the clamping block 6 to move; the two fixed blocks 3, the clamping block 6 and the limiting block 2 are located on the same straight line. The movement of the clamping block 6 moves it closer to or away from the limiting block 2.

[0029] During the specific measurement, the bow limbs of the eccentric bow contact the side of the clamping block 6 near the limiting block 2, and the bow body of the eccentric bow contacts the side of the limiting block 2 near the clamping block 6. The clamping block 6 moves towards the limiting block 2 to compress the bow limbs of the eccentric bow, thereby measuring the corresponding compression amount and eccentric force. The clamping block 6 moves away from the limiting block 2 to gradually reduce the eccentric force of the eccentric bow to zero so that the eccentric bow can be removed.

[0030] One end of the lead screw 5, away from the limit block 2, extends out of the corresponding fixed block 3, and a handwheel is connected to this end of the lead screw 5.

[0031] by Figure 1 For example, the left end of the lead screw 5 extends out of the fixed block 3 on the left side, and the left end of the lead screw 5 is connected to the handwheel. The handwheel is set up to drive the lead screw 5 to rotate, so as to realize the movement of the nut 4 and the clamping block 6.

[0032] like Figure 2 , Figure 3 As shown, the upper end of the clamping block 6 is connected to the stop block 7. The stop block 7 and the clamping block 6 form a "C" shaped structure with the opening facing the limiting block 2. During measurement, the bow piece of the eccentric bow is limited in the "C" shaped structure, and the bow body of the eccentric bow contacts the side of the limiting block 2 near the clamping block 6.

[0033] In this embodiment, as Figure 2 , Figure 3As shown, the clamping block 6 has an L-shaped structure, and the stop block 7 is connected to the upper end of the clamping block. The stop block 7 and the clamping block 6 form a "C"-shaped structure with the opening facing the limiting block 2. During measurement, the bow piece of the eccentric bow is located inside the "C"-shaped structure, thereby preventing the bow piece of the eccentric bow from being pressed and then bouncing upwards and injuring people.

[0034] The pressure measuring unit includes a pressure sensor fixed on a clamping block 6 on the side that contacts the eccentric bow. The pressure sensor is used to measure the eccentric force of the eccentric bow. The pressure sensor is connected to a digital display, which is used to display the eccentric force.

[0035] The pressure measuring unit in this embodiment includes a pressure sensor and a digital display. The pressure sensor is used to measure the eccentric force of the eccentric bow, and the measurement accuracy of the pressure sensor is 0.01 kg. The digital display is used to display the magnitude of the eccentric force.

[0036] The clamping block has a pressure sensor mounting hole 61 on its vertical plate. The pressure sensor is fixed in the pressure sensor mounting hole 61 of the clamping block by screws. A placement box 8 is fixedly connected to the end of the base 1 away from the limiting block 2, and a digital display is placed in the placement box 8. The pressure sensor and the instrument are connected by four wires, which are excitation positive, excitation negative, signal positive, and signal negative, respectively. In this embodiment, the pressure sensor is used to measure the eccentric force of the eccentric bow. After the eccentric force is measured, the magnitude of the eccentric force is displayed on the digital display.

[0037] The performance of the pressure sensor in this embodiment is shown in Table 1 below:

[0038] Table 1: Performance Table of the Pressure Sensor in This Embodiment

[0039]

[0040]

[0041] The performance of the digital display in this embodiment is shown in Table 2 below:

[0042] Table 2: Performance Table of the Digital Display in This Embodiment

[0043] name Force value display controller model CHB-CHVO power supply voltage AC100-240V Power consumption 7VA and below Insulation resistance 100MΩ and above Measurement and control speed 10 times / second or more Basic error ±0.05%FS Display range 19999-45000 Input signal Proportional measurement, compatible with 4-wire strain sensors, suitable for 0.8-3.0mV / V. Contact output Point 2, 250VAC / 3A resistive load External voltage 10V±2%, 30ppm, 150mA

[0044] Among them, such as Figure 1 As shown, a plug is fixedly connected to the lower end of the limiting block 2, and a slot 11 is provided on the base 1. The limiting block 2 is connected to the base 1 through the cooperation of the plug and the slot 11. The plug-in connection between the limiting block and the base has the advantage of convenient connection.

[0045] The base 1 has several slots 11 spaced apart along the compression direction of the eccentric bow. The arrangement of the slots 11 allows the limiting block 2 to be inserted into the corresponding slot 11 according to the size of the eccentric bow, so as to accommodate different eccentric bows.

[0046] As an alternative, a plug is fixedly connected to the base 1, and a slot is provided at the lower end of the limiting block 2. The limiting block is connected to the base through the cooperation of the plug and the slot. Correspondingly, a number of plugs are arranged at intervals along the compression direction of the eccentric arch on the base 1.

[0047] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication 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.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A device for measuring the eccentric force of an eccentric bow, characterized in that The device includes a base, on which a displacement adjustment device is fixedly connected, and a limit block is connected. During measurement, the eccentric bow to be measured is placed between the displacement adjustment device and the limit block. The displacement adjustment device can move towards the limit block to compress the bow limbs of the eccentric bow. A pressure measuring unit is fixedly connected to the displacement adjustment device to measure the eccentric force of the eccentric bow. A scale is fixedly connected to the base to measure the compression of the bow limbs of the eccentric bow.

2. The apparatus of claim 1, wherein, The displacement adjustment device includes two fixed blocks, both of which are fixed on the base. A limiting block is located on the same side of the two fixed blocks. A lead screw is rotatably connected between the two fixed blocks. A nut is sleeved on the lead screw, and a clamping block is fixedly connected to the nut. During measurement, the eccentric bow to be measured is placed between the clamping block and the limiting block. The pressure measuring unit is fixed on the side of the clamping block that contacts the eccentric bow.

3. The apparatus according to claim 2, characterized in that, The end of the lead screw away from the limiting block extends out of the corresponding fixing block, and a handwheel is connected to this end of the lead screw.

4. The apparatus according to claim 2, characterized in that, The upper end of the clamping block is connected to a stop block. The stop block, the clamping block and the nut form a "C" shaped structure with the opening facing the limiting block. During measurement, the bow plate of the eccentric bow is limited within the "C" shaped structure, and the bow body of the eccentric bow contacts the side of the limiting block near the clamping block.

5. The apparatus according to claim 2, characterized in that, The pressure measuring unit includes a pressure sensor fixed on the clamping block on the side that contacts the eccentric bow. The pressure sensor is used to measure the eccentric force of the eccentric bow. The pressure sensor is connected to a digital display, which is used to display the eccentric force.

6. The apparatus according to claim 5, characterized in that, A placement box is fixedly connected to the end of the base away from the limiting block, and the digital display is placed inside the placement box.

7. The apparatus according to claim 1, characterized in that, The lower end of the limiting block is fixedly connected to an insert block, and a slot is provided on the base. The limiting block is connected to the base through the cooperation of the insert block and the slot.

8. The apparatus according to claim 7, characterized in that, The base is provided with a plurality of slots spaced apart along the compression direction of the eccentric bow.

9. The apparatus according to claim 1, characterized in that, A plug is fixedly connected to the base, and a slot is provided at the lower end of the limiting block. The limiting block is connected to the base through the cooperation of the plug and the slot.

10. The apparatus according to claim 9, characterized in that, The base is provided with a plurality of insert blocks spaced apart along the compression direction of the eccentric bow.

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