Calibrating device for sensor of tensioning machine

Abstract

The utility model provides a calibration device of a tensioning machine sensor, and belongs to the technical field of metering equipment calibration equipment. The device comprises a sensor, a connecting rod, a calibration component, a display component, a force transmission component and a fixing component, wherein the sensor is arranged on a tensioning machine; the connecting rod is used for being coaxially and detachably connected with a screw rod for mounting a sensor; the calibration component is arranged on the connecting rod and is used for measuring stress data of the sensor; the display part is used for receiving and displaying measurement data of the calibration part; one end of the force transmission part presses the sensor, and the other end presses the calibration part; the fixing part is arranged on the connecting rod and is used for detachably arranging the calibration part on the connecting rod; a through hole is formed in the connecting rod in the direction perpendicular to the axial direction and is used for arranging a stop part for preventing the fixing part from moving in the direction away from the calibration part; the technical problems that when an existing tensioning machine sensor is calibrated, the sensor needs to be disassembled and assembled, time and labor are wasted, and the production schedule is affected are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of metrology and calibration equipment, and specifically relates to a calibration device for a tensioning machine sensor. Background Technology

[0002] In the production of high-speed railway track slabs, the tensioning machine is a key piece of equipment that ensures the prestressing of the steel bars on the track slab. Its tensioning accuracy directly affects the quality and service life of the track slab. However, due to long-term use, environmental factors, and wear and tear on the equipment itself, the tensioning accuracy of the tensioning machine may gradually decrease, resulting in discrepancies between the sensor readings and the actual applied force, thus affecting the quality and performance of the track slab. Therefore, it is necessary to periodically calibrate the sensors on the tensioning machine to ensure that its tensioning accuracy meets the requirements.

[0003] Currently, the commonly used calibration method for tensioning machines usually requires disassembling the sensors (the sensors are fitted onto the screw of the tensioning machine, and then the sensors are installed on the tensioning machine by tightening the nuts on the screw) and sending them to a professional metrology institution for calibration. After calibration, they need to be reinstalled. This method is not only time-consuming and labor-intensive, but it also affects the production schedule during the calibration process.

[0004] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide a calibration device for tensioning machine sensors, which solves the technical problem that the existing method of calibrating tensioning machine sensors requires disassembling and assembling the sensors, which is time-consuming, labor-intensive, and affects production progress.

[0006] To achieve the above objectives, the calibration device for tensioning machine sensors of this utility model provides the following technical solution:

[0007] A calibration device for a tensioning machine sensor, comprising:

[0008] Sensors, which are mounted on the tensioning machine;

[0009] A connecting rod having a fastening section, an installation section and an adjustment section arranged in sequence, wherein the fastening section is used for a detachable coaxial connection with a screw for mounting a sensor;

[0010] A calibration component, which is mounted on the mounting section of the connecting rod, is used to measure the force data of the sensor;

[0011] A display component, electrically connected to a calibration component, is used to receive and display measurement data from the calibration component;

[0012] A force transmission component, which is sleeved on a connecting rod, presses a sensor at one end and a calibration component at the other end;

[0013] A fixing component is provided on the adjustment section of the connecting rod, for detachably mounting the calibration component on the connecting rod;

[0014] The adjustment section has a perforation in the vertical axial direction, and the perforation is used to set a stop to prevent the fixed part from moving away from the calibration part.

[0015] As a further optimized technical solution, the calibration device for the tensioning machine sensor also includes an adjustment component, which is disposed between the fixed component and the calibration component to ensure the coaxiality of the calibration component and the sensor.

[0016] As a further optimized technical solution, the fastening section has an axially arranged threaded hole for threaded connection with the screw for mounting the sensor.

[0017] As a further optimized technical solution, the force transmission component is a cylindrical shape with open ends. The inner cavity of the force transmission component near the sensor is adapted to the outer diameter of the fastening section. The inner cavity of the force transmission component near the calibration component is a tapered hole section. The mounting section is provided with a tapered area with an inclination adapted to the tapered hole section, and the length of the tapered hole section is greater than the length of the tapered area.

[0018] As a further optimized technical solution, the diameter of the tapered hole section decreases uniformly from the end closer to the sensor to the end closer to the calibration component.

[0019] As a further optimized technical solution, the adjustment component is disc-shaped with a coaxially arranged through hole in the middle. The diameter of the through hole is adapted to the installation section. The side of the adjustment component facing the calibration component has a coaxially arranged conical groove. The side of the calibration component facing the conical groove is fixedly connected to a coaxial adjustment member. The side of the coaxial adjustment member facing the conical groove is provided with a conical inclined surface adapted to the conical groove.

[0020] As a further optimized technical solution, the adjusting section has an external thread, and the fixing component has a threaded through hole that matches the external thread of the adjusting section. The fixing component is set on the adjusting section by a threaded connection.

[0021] As a further optimized technical solution, the fixing component is a nut.

[0022] As a further optimized technical solution, the stop component is a stop pin.

[0023] As a further optimized technical solution, the perforations are arranged radially along the adjustment section.

[0024] Beneficial effects: By using this invention, when calibrating the sensor on the tensioning machine, first remove the nut fixed to one side of the sensor, then install the connecting rod on the screw where the sensor is installed. Next, install the force transmission component, calibration component, and fixing component sequentially on the connecting rod. Then, start the tensioning machine to perform tensioning. The force display of the sensor and the calibration component is compared to calibrate the tensioning machine's own sensor. This calibration method can be completed without removing the sensor from the tensioning machine. The calibration method is simple, efficient, and does not affect the normal operation of the tensioning machine, thus reducing the impact on production schedule. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0026] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model.

[0027] In the diagram: 100, connecting rod; 110, fastening section; 111, threaded hole; 120, mounting section; 130, adjusting section; 131, through hole; 200, sensor; 300, calibration component; 310, coaxial adjusting component; 400, force transmission component; 500, fixing component; 600, adjusting component; 610, tapered groove. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.

[0029] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0031] In addition, the shapes and sizes of the components in the accompanying drawings do not reflect the actual proportions of the product; they are only intended to illustrate the content of the invention.

[0032] The tensioning machine tensions the prestressed steel bars, controlling each bar individually. This means a force sensor is installed for each prestressed steel bar. Taking the P5600 track slab as an example, this track slab has 24 prestressed steel bars arranged horizontally and 16 vertically. Disassembling and sending the equipment for inspection is time-consuming and labor-intensive, and the tensioning equipment cannot continue to be used during the inspection period due to a lack of spare parts. On-site inspection still requires a specially made reaction frame and disassembling the sensors, which is not only time-consuming and labor-intensive but also affects the production schedule.

[0033] Therefore, in order to solve the technical problems of inconvenient operation and impact on production progress in existing sensor calibration methods, this utility model provides a calibration device for tensioning machine sensors.

[0034] This calibration device for tensioning machine sensors eliminates the need for extensive sensor disassembly. Simply remove the nuts securing the sensors to the tensioning machine, quickly install the device, and begin normal tensioning. After calibrating one sensor, it can be quickly disassembled and replaced with another without affecting normal equipment operation. Furthermore, it allows for comprehensive calibration of sensor data on both the computer and client sides. This significantly improves the calibration speed of tensioning machine sensors and reduces the operational complexity of calibration.

[0035] Specifically, such as Figure 1 As shown, this utility model provides a calibration device for a tensioning machine sensor. The calibration device includes a sensor 200 fixedly mounted on the tensioning machine, a connecting rod 100 for mounting on one side of the sensor 200, a calibration component 300, a force transmission component 400, and a fixing component 500 mounted on the connecting rod 100, and a display component (not shown in the figure) for electrically connecting the calibration component 300.

[0036] The connecting rod 100 has a fastening section 110, an installation section 120, and an adjusting section 130 arranged sequentially, which are integrally fixedly connected. The fastening section 110 is used for a coaxial and detachable connection with the screw on the tensioning machine that mounts the sensor 200. Specifically, the fastening section 110 has an axially arranged threaded hole 111. When installing the connecting rod 100, first remove the nut on the tensioning machine that is used to stop the sensor 200, and then connect the threaded hole 111 on the connecting rod 100 with the screw on the tensioning machine that mounts the sensor 200 to ensure that the sensor 200 can work normally.

[0037] The calibration component 300 is mounted on the mounting section 120 of the connecting rod 100 to measure the force data of the sensor 200. In this embodiment, the calibration component 300 is a highly sensitive wheel-type sensor that can monitor the force applied by the tensioning machine in real time, convert the force signal into an electrical signal, transmit it to the display component of the data display, and compare it with the value of the force sensor 200 of the tensioning machine itself to obtain the calibration result.

[0038] The display component is electrically connected to the calibration component 300 and is used to receive and display the measurement data of the calibration component 300 for easy comparison with the display data of the sensor 200 on the tensioning machine.

[0039] The force transmission component 400 is sleeved on the connecting rod 100, pressing the sensor 200 at one end and the calibration component 300 at the other end. Thus, when the tensioning machine performs tensioning operations, the force on the sensor 200 is transmitted to the calibration component 300 through the force transmission component 400. Therefore, the force state of the calibration component 300 is the same as that of the sensor 200, and the calibration component 300 measures the force state of the sensor 200 in this way.

[0040] In this embodiment, the force transmission component 400 is a cylindrical shape with open ends. The inner cavity of the force transmission component 400 near the sensor 200 is adapted to the outer diameter of the fastening section 110. The inner cavity of the force transmission component 400 near the calibration component 300 is a tapered hole section. The diameter of the tapered hole section decreases uniformly from the end near the sensor 200 to the end near the calibration component 300. The mounting section 120 is provided with a tapered region whose inclination matches the tapered hole section, and the length of the tapered hole section is greater than the length of the tapered region. In this way, the tapered hole section has sufficient space to ensure that the mounting section 120 is pressed tightly, thereby ensuring the coaxiality of the force transmission component 400 and the connecting rod 100, and thus ensuring that the force transmission component 400 can uniformly transmit the force on the sensor 200 to the calibration component 300.

[0041] The calibrating component 500 is disposed on the adjusting section 130 of the connecting rod 100, and is used to detachably mount the calibration component 300 on the connecting rod 100.

[0042] In this embodiment, the adjusting section 130 has external threads, and the fixing component 500 is a nut with a threaded through hole that matches the external threads of the adjusting section 130. The fixing component 500 is mounted on the adjusting section 130 via a threaded connection. However, the threaded connection inevitably leads to loosening. To prevent loosening during calibration, a through hole 131 is provided on the adjusting section 130 in the vertical axial direction. The through hole 131 is arranged radially along the adjusting section 130 and is located on the side away from the calibration component 300 after the fixing component 500 is installed in place. The through hole 131 is used to install a stop component that prevents the fixing component 500 from moving away from the calibration component 300. Preferably, the stop component is a stop pin. After the fixing component 500 is installed in place, the stop pin is inserted into the through hole 131 to stop the fixing component 500 and prevent the calibration component 300 from loosening during calibration.

[0043] Furthermore, the calibration device for the tensioning machine sensor also includes an adjustment component 600, which is disposed between the fixed component 500 and the calibration component 300 to ensure the coaxiality of the calibration component 300 and the sensor 200.

[0044] In this embodiment, the adjusting component 600 is disc-shaped with a coaxially arranged through hole in the center. The diameter of the through hole is adapted to the mounting section 120. The adjusting component 600 has a coaxially arranged conical groove 610 on the side facing the calibration component 300. A coaxial adjusting member 310 is fixedly connected to the side of the calibration component 300 facing the conical groove 610. The coaxial adjusting member 310 has a conical inclined surface adapted to the conical groove 610 on the side facing the conical groove 610. Thus, when the fixing component 500 presses the adjusting component 600, the adjusting component 600 and the calibration component 300 are arranged coaxially. At the same time, the calibration component 300 and the sensor 200 are arranged coaxially, thereby ensuring that the force on the sensor 200 on the tensioning machine is the same as that on the calibration component 300.

[0045] In operation, the device first removes the nut used to stop the sensor 200 on the tensioning machine. Then, the connecting rod 100 is installed on the screw that mounts the sensor 200 and the sensor 200 is tightened. Next, the force transmission component 400, calibration component 300, adjustment component 600, fixing component 500, and stop component are sequentially installed on the connecting rod 100. The tensioning machine is then started for tensioning. The data displayed on the display component connected to the calibration component 300 is compared with the force data of the sensor 200 displayed on the tensioning machine itself to complete the calibration of the sensor 200. After calibration, the connection between the display component and the calibration component 300 is disconnected, and then the connecting rod 100 is removed from the tensioning machine. The entire calibration process is simple to operate, greatly improves calibration efficiency, and reduces the impact on production schedule.

[0046] It is understood that the above description is merely exemplary and the embodiments of this application do not limit the scope of the application.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be within the scope of protection of the pending claims of the present utility model.

Claims

1. A calibration device for a tensioning machine sensor, characterized in that, include: Sensor (200), said sensor (200) is mounted on the tensioning machine; A connecting rod (100) having a fastening section (110), a mounting section (120) and an adjusting section (130) arranged in sequence, wherein the fastening section (110) is used for a coaxial and detachable connection with a screw for mounting a sensor (200); A calibration component (300) is provided on the mounting section (120) of the connecting rod (100) for measuring the force data of the sensor (200); The display component is electrically connected to the calibration component (300) and is used to receive and display measurement data from the calibration component (300). A force transmission component (400) is sleeved on a connecting rod (100), with one end pressing against a sensor (200) and the other end pressing against a calibration component (300); A fixing component (500) is disposed on an adjustment section (130) on a connecting rod (100) for detachably mounting a calibration component (300) on the connecting rod (100); The adjustment section (130) is provided with a through hole (131) in the vertical axial direction. The through hole (131) is used to provide a stop to prevent the fixing component (500) from moving away from the calibration component (300).

2. The calibration device for the tensioning machine sensor according to claim 1, characterized in that, The calibration device for the tensioning machine sensor also includes an adjustment component (600), which is disposed between the fixed component (500) and the calibration component (300) to ensure the coaxiality of the calibration component (300) and the sensor (200).

3. The calibration device for the tensioning machine sensor according to claim 1, characterized in that, The fastening section (110) has an axially arranged threaded hole (111) for threaded connection with the screw for mounting the sensor (200).

4. The calibration device for a tensioning machine sensor according to any one of claims 1-3, characterized in that, The force transmission component (400) is a cylindrical shape with open ends. The inner cavity of the force transmission component (400) near the sensor (200) is adapted to the outer diameter of the fastening section (110). The inner cavity of the force transmission component (400) near the calibration component (300) is a tapered hole section. The mounting section (120) is provided with a tapered area with an inclination adapted to the tapered hole section, and the length of the tapered hole section is greater than the length of the tapered area.

5. The calibration device for the tensioning machine sensor according to claim 4, characterized in that, The diameter of the tapered aperture section decreases uniformly from the end closer to the sensor (200) to the end closer to the calibration component (300).

6. The calibration device for a tensioning machine sensor according to claim 2, characterized in that, The adjusting component (600) is disc-shaped with a coaxially arranged through hole in the middle. The diameter of the through hole is adapted to the mounting section (120). The adjusting component (600) has a coaxially arranged conical groove (610) on the side facing the calibration component (300). The calibration component (300) is fixedly connected to a coaxial adjusting member (310) on the side facing the conical groove (610). The coaxial adjusting member (310) has a conical inclined surface adapted to the conical groove (610) on the side facing the conical groove (610).

7. The calibration device for a tensioning machine sensor according to any one of claims 1-3, characterized in that, The adjusting section (130) has an external thread, and the fixing component (500) has a threaded through hole that is adapted to the external thread of the adjusting section (130). The fixing component (500) is disposed on the adjusting section (130) by means of a threaded connection.

8. The calibration device for a tensioning machine sensor according to claim 7, characterized in that, The fixing component (500) is a nut.

9. The calibration device for a tensioning machine sensor according to any one of claims 1-3, characterized in that, The stop component is a stop pin.

10. The calibration device for a tensioning machine sensor according to any one of claims 1-3, characterized in that, The perforation (131) is arranged radially along the adjustment section (130).

Images