Stacked force standard machine with double-column door structure

Abstract

The utility model relates to the technical field of metering, and discloses a double-column door structure superposition type force standard machine which comprises a base, the left side and the right side of the top of the base are both fixedly connected with supporting assemblies used for providing supporting, the tops of the supporting assemblies are fixedly connected with a top plate, and the outer portions of the supporting assemblies are fixedly connected with a hand control box. A double-column door structure is adopted, a stable frame system is formed by the base, the supporting assemblies on the left side and the right side and the top plate, the structure can evenly disperse pressure generated when a large force value is loaded, and local stress concentration is effectively avoided; it is ensured that the overall structure of equipment is stable and deformation and vibration are reduced when force values of large force values or even super-large force values are measured, so that high precision and reliability of measurement are guaranteed, the double-column-door structure can evenly transmit force to the base and the ground, the equipment is kept stable, and the influence of structure shaking on measurement results is reduced.

Description

Technical Field

[0001] This utility model relates to the field of metrology technology, and in particular to a double-column gate structure superimposed force standard machine. Background Technology

[0002] A superimposed force standard machine uses one or more high-accuracy, high-precision standard force gauges as a reference standard. These are connected in series (overlapped) with the force gauge being tested through an appropriate mechanism, and a load is applied hydraulically or mechanically. The overall applied standard force value is then compared and measured to determine the metrological characteristics of the force gauge being tested. This type of force standard machine differs from other force standard machines that use absolute measurement methods; instead, it employs a relative comparison measurement method. Its force value uncertainty mainly depends on the performance indicators of the standard force gauge, the series connection method of the force gauges being tested, the assembly quality of the standard machine, and the performance of the loading structure.

[0003] Superimposed force standard machines offer advantages such as a large force measurement range, high efficiency, and small footprint. This structural form is particularly suitable for high-force standard machines. However, existing superimposed force standard machines are prone to structural deformation and vibration during high-force loading, especially under ultra-high-force conditions exceeding 20MN. Traditional frame structures struggle to evenly distribute loads, leading to localized stress concentrations that affect measurement accuracy and equipment lifespan. For example, during 30MN force calibration, structural vibrations cause slight displacements in the series connection between the standard force gauge and the force gauge being tested, resulting in fluctuating measurement data and increased measurement error.

[0004] Therefore, a double-column gate structure superimposed force standard machine is proposed to address the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a double-column gate structure superimposed force standard machine, which aims to improve the existing technology. While various large-range superimposed force standard machines used for detecting force sensors are widely used and have a high degree of technological maturity, there is a lack of dedicated testing equipment for the tension and compression of aircraft control stick force measurement devices and foot pedal force measurement devices.

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

[0007] A double-column gate structure superimposed force standard machine includes a base. Support components for providing support are fixedly connected to the top left and right sides of the base. A top plate is fixedly connected to the top of each support component. A hand control box is fixedly connected to the outside of the support components. Electromagnetic brakes are provided on the top left and right sides of the top plate. Ball screw pairs are provided at the bottom of each of the two electromagnetic brakes. Limit blocks are slidably connected to the outside of each of the two ball screw pairs. A moving crossbeam is threaded to the outside of each of the two ball screw pairs. A servo motor is provided on the top of the moving crossbeam. A sensor to be measured is fixedly connected to the output end of the servo motor. Two guide columns are fixedly connected to the top left and right sides of the base.

[0008] As a further description of the above technical solution:

[0009] The support assembly includes column two and column one. The bottoms of column one and column two are fixedly connected to the top left and right sides of the base, respectively, and the tops of column one and column two are fixedly connected to the bottom left and right sides of the top plate, respectively.

[0010] As a further description of the above technical solution:

[0011] The hand control box is equipped with a touch screen on the outside and buttons on the bottom. An electrical control box is fixedly connected to the bottom of the base. Two support legs are fixedly connected to the bottom left and right sides of the electrical control box. A conduit is fixedly connected to the top right side of the base.

[0012] As a further description of the above technical solution:

[0013] The left and right sides of the movable crossbeam are slidably connected to the outside of the two guide posts, and the bottom of the sensor under test is in contact with the top of the base.

[0014] As a further description of the above technical solution:

[0015] The bottom of the ball screw assembly is rotatably connected to the top of the base, and the bottom of the guide post is in contact with the bottom of the top plate;

[0016] As a further description of the above technical solution:

[0017] The top of the top plate is provided with multiple lifting rings, and the top of the conduit is fixedly connected to the bottom of the top plate.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, a double-column door structure is adopted, which consists of a base, supporting components on the left and right sides, and a top plate to form a stable frame system. This structure can evenly distribute the pressure generated when loading a large force, effectively avoid local stress concentration, and ensure the overall stability of the equipment structure when measuring large or even super-large force values, reducing deformation and vibration, thereby ensuring high accuracy and reliability of the measurement. The double-column door structure can evenly transmit the force to the base and the ground, keeping the equipment stable and reducing the impact of structural shaking on the measurement results.

[0020] 2. In this utility model, the guide columns fixedly connected to the left and right sides of the top of the base are slidably connected to the moving crossbeam. The guide columns provide precise guidance for the up-and-down movement of the moving crossbeam, further enhancing the stability and accuracy of the equipment during loading. Simultaneously, the guide columns can also share some of the lateral force, preventing the moving crossbeam from shifting under load, ensuring that the direction of the measured sensor and the standard force remains consistent, and improving measurement accuracy. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a double-column gate structure superimposed force standard machine proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the top plate of a double-column door structure superimposed force standard machine proposed in this utility model;

[0023] Figure 3 This is a structural schematic diagram of the second column of a double-column gate structure superimposed force standard machine proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the sensor under test of a double-column gate structure superimposed force standard machine proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the ball screw pair of a double-column gate superimposed force standard machine proposed in this utility model.

[0026] Legend:

[0027] 1. Base; 2. Column 1; 3. Top plate; 4. Electromagnetic brake; 5. Ball screw pair; 6. Limit block; 7. Moving crossbeam; 8. Servo motor; 9. Sensor under test; 10. Guide column; 11. Lifting ring; 12. Column 2; 13. Manual control box; 14. Touch screen; 15. Button; 16. Electrical control box; 17. Support leg; 18. Cable guide. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1 to 5 This utility model provides an embodiment of a double-column gate structure superimposed force standard machine, including a base 1. The base 1 serves as the basic support component of the entire double-column gate structure superimposed force standard machine, bearing the weight of the components above and providing a stable installation foundation for other structures. Support components for providing support are fixedly connected to the top left and right sides of the base 1. A top plate 3 is fixedly connected to the top of the support components, and a hand control box 13 is fixedly connected to the outside of the support components. The support components include a second column 12 and a first column 2. The bottoms of the first column 2 and the second column 12 are respectively fixedly connected to the top left and right sides of the base 1. The tops of columns 1 and 2 are fixedly connected to the bottom left and right sides of the top plate 3, respectively. Columns 1 and 2 together ensure the stability of the entire structure. The outside of the hand control box 13 is equipped with a touch screen 14, and the bottom of the hand control box 13 is equipped with a button 15. Through the touch screen 14, parameter settings, measurement direction and measurement mode, control mode selection, command operation and status display can be realized. Through the button 15, functions such as turning the equipment power on or off, manually loading or unloading, emergency shutdown, and manual operation control of the lifting mechanism for raising or lowering, speed selection, etc., can be realized.

[0030] An electrical control box 16 is fixedly connected to the bottom of the base 1. Located at the bottom of the base 1, the electrical control box 16 is mainly used to control the electrical system of the entire force standard machine, ensuring that all electrical components operate in an orderly manner according to the set programs and instructions, and coordinating the working states of each part. Two support legs 17 are fixedly connected to the left and right sides of the bottom of the electrical control box 16. There are four support legs 17 in total, fixedly connected to the left and right sides of the bottom of the electrical control box 16, serving as basic support for the entire equipment and ensuring its stable placement on the ground. They also ensure the equipment remains stable during operation, preventing shaking and other factors that could affect measurement accuracy. A conduit 18 is fixedly connected to the top right side of the base 1, with one end of the conduit 18 fixedly connected to… The top right side of the base 1 is connected to the top plate 3, and the other end is fixedly connected to the bottom of the top plate 3. It serves to organize the wiring, so that various cables inside the equipment can pass through in an orderly manner, avoiding messy wiring and ensuring the rationality and safety of the internal wiring layout. Electromagnetic brakes 4 are installed on the top left and right sides of the top plate 3. The main function of the electromagnetic brakes 4 is to brake the relevant moving parts as needed during the operation of the equipment, so as to ensure that the moving parts can stop at a specific time, ensuring the accuracy and safety of the operation. The top plate 3 is located on top of the support components, which serves to connect and support the relevant components and provide installation positions for components such as electromagnetic brakes 4.

[0031] Both electromagnetic brakes 4 are equipped with ball screw pairs 5 at their bottoms. The bottom of the ball screw pairs 5 is rotatably connected to the top of the base 1. The ball screw pairs 5 are slidably connected to the limit blocks 6 and threadedly connected to the moving crossbeam 7. When the equipment is working, the corresponding drive device drives them to rotate, thereby realizing the up and down movement of the moving crossbeam 7, and thus adjusting the installation position, height, and distance of the sensor under test. The limit blocks 6 are slidably connected to the outside of both ball screw pairs 5. The limit blocks 6 are slidably connected to the outside of the ball screw pairs 5, which limits the movement range of related components, prevents the moving crossbeam 7 and other components from exceeding the reasonable range during movement, and ensures the safety and stability of the equipment operation. The moving crossbeam 7 is threadedly connected to the outside of both ball screw pairs 5, and a servo motor 8 is installed on the top of the moving crossbeam 7.

[0032] The output end of the servo motor 8 is fixedly connected to the sensor under test 9. The servo motor 8 is installed on the top of the moving crossbeam 7 to provide power for the operation of the equipment and drive the movement of related components, such as driving electric push rods to perform operations such as loading / unloading the sensor under test, ensuring the realization of various functions of the equipment. The bottom of the sensor under test 9 is in contact with the top of the base 1. The bottom of the sensor under test 9 is in contact with the top of the base 1 and is the object to be tested. The force standard machine applies a corresponding force to it to test its performance under different force values, and then judges whether it meets the corresponding accuracy requirements. Two guide posts 10 are fixedly connected to the top left and right sides of the base 1. The left and right sides of the moving crossbeam 7 are slidably connected to the outside of the two guide posts 10 respectively. The moving crossbeam 7 can move up and down under the corresponding drive by threaded connection with the ball screw pair 5 and sliding outside the guide posts 10. It is mainly used to adjust the height distance of the sensor under test installation position, and serves as the installation and bearing reference of the loading mechanism, bearing tensile or compressive loads of equal magnitude and opposite direction.

[0033] The bottom of the guide column 10 contacts the bottom of the top plate 3. There are four guide columns 10, which are fixedly connected to the top left and right sides of the base 1 respectively. The left and right sides of the moving beam 7 are slidably connected to the outside of the guide column 10, which serves as a guide to ensure that the moving beam 7 moves along a predetermined straight line during the up and down movement, thus ensuring the stability and accuracy of the movement. The top of the top plate 3 is provided with multiple lifting rings 11. The lifting rings 11 are located on the top of the top plate 3 to facilitate the use of lifting equipment for lifting operations during the installation and transportation of the equipment, and to facilitate the transfer and installation positioning of the equipment. The top of the conduit 18 is fixedly connected to the bottom of the top plate 3.

[0034] Working Principle: When testing is required, the operator first needs to prepare the equipment. The touchscreen 14 located on the outside of the control box 13 and the buttons 15 at the bottom play their roles. Through the touchscreen 14, the operator can finely set parameters, set appropriate measurement directions, measurement modes, and control modes according to the type of sensor being tested and the testing requirements, and can also view the feedback of command operations and the status display of the equipment in real time. If manual operation of some functions is required, such as turning the equipment power on or off, manually adding or unloading loads, stopping the machine in emergency situations, or controlling the lifting mechanism to rise or fall and selecting its speed, all can be conveniently achieved through the buttons 15.

[0035] After preparation, the testing process officially begins. The servo motor 8, mounted on top of the moving beam 7, starts, serving as the power core and driving a series of components. The output end of the servo motor 8 is fixedly connected to the sensor under test 9, whose bottom contacts the top of the base 1, awaiting load to demonstrate its performance. Simultaneously, the servo motor 8 also drives two sets of ball screw pairs 5 on both sides of the gantry to rotate via synchronous pulleys and belts. The bottom of the ball screw pairs 5 is rotatably connected to the top of the base 1, externally slidably connected to the limit block 6, and threadedly connected to the moving beam 7. As the ball screw pairs 5 rotate, the moving beam 7 begins to move. The left and right sides of the moving beam 7 are slidably connected to the outside of two guide posts 10 on the left and right sides of the top of the base 1, respectively. The bottom of the guide posts 10 contacts the bottom of the top plate 3, providing precise guidance for the moving beam 7, ensuring it moves smoothly up and down only along a predetermined straight line. This precisely adjusts the height distance of the sensor under test 9, ensuring the accuracy of the testing conditions.

[0036] Next, relying on the servo motor 8, the electric actuator is driven to move linearly up and down, thereby loading or unloading the sensor 9 under test. During the loading process, the sensor 9 under test is subjected to force, and its performance data begins to change. These changes are recorded by the corresponding detection system. The electromagnetic brakes 4, located on the left and right sides of the top of the top plate 3, are always on standby. Once an emergency braking situation occurs during equipment operation, such as detecting abnormal force fluctuations or deviation of component movement from the preset track, the electromagnetic brakes 4 can quickly brake the relevant moving parts according to the preset program, ensuring the safety and accuracy of the entire detection process.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-column door structure superimposed force standard machine comprising a base (1), characterized in that: The top left and right sides of the base (1) are fixedly connected with support assemblies for providing support, the top of the support assembly is fixedly connected with a top plate (3), the outside of the support assembly is fixedly connected with a manual control box (13), the top of the top plate (3) is provided with an electromagnetic brake (4) on the left and right sides, the bottom of the two electromagnetic brakes (4) is provided with a ball screw pair (5), the outside of the two ball screw pairs (5) is slidingly connected with a limit block (6), the outside of the two ball screw pairs (5) is threadedly connected with a moving cross beam (7), the top of the moving cross beam (7) is provided with a servo motor (8), the output end of the servo motor (8) is fixedly connected with a measured sensor (9), the top of the base (1) is fixedly connected with two guide columns (10) on the left and right sides.

2. The dual column door structure stackable force standard machine according to claim 1, characterized in that: The support assembly comprises a second column (12) and a first column (2), the bottom of the first column (2) and the second column (12) is fixedly connected on the top of the base (1) on the left and right sides, the top of the first column (2) and the second column (12) is fixedly connected on the bottom of the top plate (3) on the left and right sides.

3. The dual column door structure stackable force standard machine according to claim 1, characterized in that: The outside of the manual control box (13) is provided with a touch screen (14), the bottom of the manual control box (13) is provided with a button (15), the bottom of the base (1) is fixedly connected with an electric control box (16), the bottom of the electric control box (16) is fixedly connected with two supporting legs (17) on the left and right sides, the top right side of the base (1) is fixedly connected with a wire tube (18).

4. The dual column door structure stackable force standard machine according to claim 1, characterized in that: The left and right sides of the moving cross beam (7) are slidingly connected outside the two guide columns (10), the bottom of the measured sensor (9) is in contact with the top of the base (1).

5. The dual column door structure stackable force standard machine according to claim 1, characterized in that: The bottom of the ball screw pair (5) is rotatably connected to the top of the base (1), the bottom of the guide column (10) is in contact with the bottom of the top plate (3).

6. The dual column door structure stackable force standard machine according to claim 3, characterized in that: The top of the top plate (3) is provided with a plurality of lifting eyes (11), the top of the wire tube (18) is fixedly connected to the bottom of the top plate (3).

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