A layout structure and configuration method of a standard sensor for a 10,000-ton force measuring device

CN113176015BActive Publication Date: 2025-01-28SHANGHAI INST OF PROCESS AUTOMATION & INSTR +1
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Patent Information

Application Number
CN202011325458.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-11-23
Publication Date
2025-01-28
Estimated Expiration
2040-11-23

AI Technical Summary

Technical Problem

The prior art is difficult to achieve the detection accuracy of a ten thousand tons-level force measuring device, and the parallel arrangement of standard sensors leads to unbalanced stress, and the impact value measurement results.

Method used

The layout structure of a standard sensor of a 10,000 -ton metering force device, including the chassis, the N -layer division unit, and the 3N standard sensor. The three -point balance principle can be achieved through three footbladers to ensure the balance of each portion. And pass the force stability to all standard sensors that are connected to the parallel.

Benefits of technology

It improves the accuracy of the measurement force of the force measurement device, so that the force measurement device can accurately determine the 10,000 -ton force that meets the measurement accuracy requirements, and fills the technical gap in the field of 10,000 tons of force measurement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a layout structure of a standard sensor for a 10,000-ton force measuring device and a configuration method thereof. The layout structure of the standard sensor includes a chassis, n-layer voltage divider units and 3 n Standard sensors, 3 n The standard sensors are arranged in parallel on the chassis, and the n-layer voltage divider units are located at 3 n The top voltage divider unit has 1 voltage divider, and the nth voltage divider unit has 3 (n‑1) There are three voltage dividers, each with three legs. The upper end of the standard sensor contacts the bottom of the legs of the voltage divider in the nth layer of voltage divider unit. Based on the three-point balance principle, the voltage divider can ensure that each leg is balanced and stably transmits the force to all the standard sensors connected in parallel at the bottom, thus improving the force measurement accuracy. It can use a thousand-ton high-precision standard sensor to measure a ten-thousand-ton force value, filling the global technical gap in the field of ten-thousand-ton force measuring devices and force standard machines.
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Description

Technical Field

[0001] The invention relates to the technical field of large force value measurement, in particular to a layout structure of a standard sensor of a 10,000-ton force measuring device and a configuration method thereof. Background Art

[0002] According to the basic principle, standard force measuring machines are mainly divided into lever machines, static weight machines and superimposed force standard machines. Since lever machines and static weight machines both use weights as the force source, for super-large force measuring machines of 1,000 tons or even 10,000 tons, if the weight is used as the standard load, the weight must be very large and loading is very difficult. Therefore, superimposed force standard machines are usually used for super-large force measuring machines. The superimposed force standard machine uses a hydraulic or mechanical force generator as the force source, and the force value is measured by a standard sensor. The standard sensor needs to be calibrated on a higher-level force measuring machine to obtain its mechanical properties before it can be used to determine the force value. Since the maximum force value of the standard sensor that can meet the required force accuracy that can be found on the market is only at the 1,000-ton level, there are currently only 1,000-ton force measuring machines in China.

[0003] With the development of science and technology and the improvement of people's living standards, especially in infrastructure construction and large bridge construction, it is necessary to measure or monitor the performance of load-bearing components. The forces on some components on large bridges have reached the level of 10,000 tons. 10,000-ton force sensors are needed to determine the performance or stress state of these large load-bearing components to ensure the safety of infrastructure such as bridges. The detection accuracy of these 10,000-ton force sensors needs to be calibrated and verified by a 10,000-ton force measuring device (force standard machine). If the force measuring device is to reach the 10,000-ton level, at least 9 1,000-ton standard sensors need to be connected in parallel. If the 9 sensors are simply arranged in parallel, the forces on each sensor will be uneven, affecting the force value measurement results. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a layout structure of a standard sensor of a 10,000-ton force measuring device and a configuration method thereof.

[0005] To achieve the above purpose, the technical solution adopted by the present invention to solve the technical problem is: a layout structure of a standard sensor for a 10,000-ton force measuring device, including a chassis, n layers of voltage divider units and 3 n Standard sensors, 3 n The standard sensors are arranged in parallel on the chassis, and the n-layer voltage divider units are located at 3 n Above the standard sensors, where n ≥ 2; from top to bottom, the first layer of voltage divider units has 1 voltage divider, and the nth layer of voltage divider units has 3 (n-1)The invention discloses a voltage divider, each of which has three legs, the upper end surface of the voltage divider of the n-th voltage divider unit contacts the bottom surface of a leg of a voltage divider of the n-1-th voltage divider unit, and the upper end surface of the standard sensor contacts the bottom surface of the leg of the voltage divider in the n-th voltage divider unit.

[0006] By adopting the technical solution of the present invention, each voltage divider adopts a three-leg voltage dividing method. According to the three-point balance principle, it can ensure that each leg is balanced in force, and the force can be stably transmitted to all standard sensors connected in parallel at the bottom, thereby improving the force measurement accuracy; if the standard sensor adopts a thousand-ton standard sensor that meets the measurement accuracy requirements, the force measuring device or force standard machine can measure ten thousand tons of force that meets the measurement accuracy requirements, filling the global technical gap in the field of ten thousand-ton force measuring devices and force standard machines.

[0007] Furthermore, the voltage dividers in the voltage divider units of the same layer have the same size, and the voltage dividers in the voltage divider units of different layers have sizes that gradually decrease from top to bottom.

[0008] Furthermore, the three legs of each voltage divider are distributed in a circular array.

[0009] By adopting the above preferred solution, the structure is more compact and the force is more balanced and stable.

[0010] Furthermore, among the contacting upper end surface of the standard sensor and the bottom surface of the voltage divider foot, the upper end surface of the standard sensor or the bottom surface of the voltage divider foot is a spherical surface; among the contacting upper end surface of the voltage divider and the bottom surface of the upper voltage divider foot, the upper end surface of the voltage divider or the bottom surface of the upper voltage divider foot is a spherical surface.

[0011] By adopting the above preferred solution, the contact surface adopts a spherical surface and a flat surface to automatically correct the height difference, adjust the force points, and ensure that the three points are balanced.

[0012] Furthermore, three pull rods distributed along a circumferential array are provided between the voltage divider disk body and the chassis of the first-layer voltage divider unit, and the pull rods are distributed in the peripheral area of ​​the standard sensor, and the pull rods include an upper rod body, a lower rod body, a connecting sleeve and a connecting shaft, the upper end of the upper rod body is threadedly connected to the bottom surface of the uppermost voltage divider disk body, the lower end of the lower rod body is threadedly connected to the upper end surface of the chassis, the lower end of the connecting shaft is threadedly connected to the upper end of the lower rod body, and the upper end of the connecting sleeve is threadedly connected to the lower end of the upper rod body, the connecting shaft includes a large outer diameter shaft portion located at the top and a small outer diameter shaft portion located in the middle, the connecting sleeve includes a large inner hole portion located in the middle and a small inner hole portion located at the lower end, the large outer diameter shaft portion of the connecting shaft is located in the large inner hole portion of the connecting sleeve and there is a movable gap between the two, and the small outer diameter shaft portion of the connecting shaft is penetrated into the small inner hole portion of the connecting sleeve and there is a movable gap between the two.

[0013] By adopting the above preferred solution, since the pressure-dividing units at each layer are in stacked contact, the pull rods are used for auxiliary support and protection, which does not affect the force transmission between the pressure-dividing units at each layer and also plays a role in safety protection.

[0014] Further, n=2, the number of standard sensors is 9, the number of layers of the voltage divider unit is 2, and the voltage divider unit includes a first layer of voltage divider units located at the upper layer and a second layer of voltage divider units located at the lower layer;

[0015] The first-layer voltage divider unit includes a first voltage divider, the first voltage divider includes a first disk body and three first pressure heads, and the first pressure heads are located below the first disk body;

[0016] The second-layer voltage divider unit includes three second voltage dividers, and the three second voltage dividers are respectively located directly below the three first pressure heads. Each of the second voltage dividers includes a second disk body and three second pressure heads. The second pressure heads are located below the second disk body, and the second disk body contacts the bottom surface of the first pressure head directly above it.

[0017] By adopting the above preferred solution, 9 standard sensors are placed in parallel to receive balanced forces, and the force measuring range is increased to 9 times that of a single standard sensor.

[0018] Furthermore, a first regulating plate is installed on the lower surface of the first disk of the first voltage divider, and the first regulating plate is provided with three first through holes with an inner diameter slightly larger than the outer diameter of the upper end of the first pressure head. The upper end of the first pressure head passes through the first through holes and the upper end surface of the first pressure head contacts the lower surface of the first disk; a second regulating plate is installed on the lower surface of the second disk of the second voltage divider, and the second regulating plate is provided with three second through holes with an inner diameter slightly larger than the outer diameter of the upper end of the second pressure head. The upper end of the second pressure head passes through the second through holes and the upper end surface of the second pressure head contacts the lower surface of the second disk; an outwardly convex central force-bearing portion is provided at the central position of the upper surface of the second disk, and the lower surface of the first pressure head has a downwardly convex annular enclosure, and the inner diameter of the annular enclosure is slightly larger than the outer diameter of the central force-bearing portion of the second disk.

[0019] By adopting the above preferred solution, the position of the voltage divider can be stabilized to prevent displacement after multiple actions.

[0020] Further, n=3, the number of standard sensors is 27, the number of layers of the voltage divider unit is 3, and the voltage divider unit includes a first voltage divider unit located at the upper layer, a second voltage divider unit located at the middle layer, and a third voltage divider unit located at the lower layer;

[0021] The first-layer voltage divider unit includes a first voltage divider, the first voltage divider includes a first disk body and three first pressure heads, and the first pressure heads are located below the first disk body;

[0022] The second-layer voltage divider unit includes three second voltage dividers, which are respectively located directly below the three first pressure heads, each of which includes a second disk and three second pressure heads, the second pressure head is located below the second disk, and the second disk contacts the bottom surface of the first pressure head directly above it;

[0023] The third-layer voltage divider unit includes 9 third voltage dividers, which are respectively located directly below the 9 second pressure heads. Each of the third voltage dividers includes a third disk body and 3 third pressure heads. The third pressure heads are located below the third disk body. The third disk body contacts the bottom surface of the second pressure head directly above it, and the bottom surface of each third pressure head contacts the upper end surface of a standard sensor.

[0024] By adopting the above preferred solution, it is possible to realize the parallel distribution of 27 standard sensors, and the force measuring range is increased to 27 times that of a single standard sensor, thereby greatly improving the force measuring range of the force measuring device.

[0025] Furthermore, a 1,000-ton force measuring unit is arranged below the chassis, and the 1,000-ton force measuring unit includes a downward pressure head, a 1,000-ton standard sensor and a 1,000-ton force source, the downward pressure head is arranged directly below the center of the chassis, and the 1,000-ton standard sensor is arranged between the downward pressure head and the 1,000-ton force source; when the 1,000-ton force source is lifted upward, the downward pressure head contacts the bottom surface of the chassis; when the 1,000-ton force source is retracted downward, the downward pressure head is separated from the bottom surface of the chassis; a 10,000-ton force source is also arranged on the outer ring of the 1,000-ton force measuring unit, and when the 10,000-ton force source is lifted upward and applies force, the force is transmitted to the chassis.

[0026] By adopting the above preferred scheme, when the product to be tested is in the thousand-ton level, a thousand-ton force measuring unit is used for measurement; when the product to be tested is in the ten-thousand-ton level, a ten-thousand-ton force source and an upper parallel sensor cluster are used; in this way, the force measuring device can not only accurately measure the ten-thousand-ton force, but also perform high-precision thousand-ton force measurement, which greatly expands the force measuring range of the force measuring device.

[0027] A method for configuring a standard sensor for a 10,000-ton force measuring device comprises the following steps:

[0028] Step 1, obtaining the maximum force value F1 and test accuracy requirements required for the product to be tested;

[0029] Step 2, selecting a standard sensor that can meet the test accuracy requirements, and obtaining the maximum measurable force value F2 of the standard sensor;

[0030] Step 3, calculate m = F1 / F2, substitute m into formula 3 (n-1) ≤m≤3 n , where n is an integer, 3 is selected n Standard sensors;

[0031] Step 4, performing 3 by using the layout structure of the standard sensor of the 10,000-ton force measuring device as claimed in claim 1 n A standard sensor layout.

[0032] By adopting the above technical solution, the number of standard sensors is reasonably selected to accurately measure the product to be tested.

[0033] Furthermore, the method further comprises step 5 of configuring a standard sensor below the bottom surface of the chassis.

[0034] By adopting the above preferred solution, it is also possible to accurately measure a force value of a smaller level. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 It is a structural schematic diagram of a two-layer voltage division implementation scheme of the layout structure of the standard sensor of the present invention;

[0037] Figure 2 is with Figure 1 The corresponding cross-sectional view;

[0038] Figure 3 It is a schematic diagram of the local structure of the tie rod;

[0039] Figure 4 is a partial schematic diagram of the contact between the voltage dividers of adjacent layers;

[0040] Figure 5 is a schematic diagram of the structure of the second disk on the second voltage divider;

[0041] Figure 6 It is an expanded schematic diagram of a three-layer voltage division implementation scheme of the layout structure of the standard sensor of the present invention;

[0042] Figure 7 It is a schematic diagram of the structure of the force measuring device;

[0043] Figure 8 It is a structural schematic diagram of the combination of a parallel sensor total unit and a force source total unit;

[0044] Fig. 9 is with Figure 8 The corresponding cross-sectional view.

[0045] The numbers and letters in the figure represent the names of the corresponding parts:

[0046] 10-parallel sensor total unit; 11-chassis; 12-voltage divider unit; 121-first voltage divider unit; 1210-first voltage divider; 1211-first disk; 1212-first pressure head; 1213-annular enclosure; 122-second voltage divider unit; 1220-second voltage divider; 1221-second disk; 1222-second pressure head; 1223-second regulation plate; 1224-second through hole; 1225-central force bearing part; 123-third voltage divider unit; 1230-third voltage divider; 13-standard sensor Sensor; 14-pull rod; 141-upper rod body; 142-lower rod body; 143-connecting sleeve; 1431-large inner hole; 1432-small inner hole; 144-connecting shaft; 1441-large outer diameter shaft; 1442-small outer diameter shaft; 20-force source total unit; 21-thousand-ton force measuring unit; 211-lower pressure head; 212-standard sensor; 213-thousand-ton force source; 220,000-ton force source; 30-reaction frame; 301-upper pressure block; 302-movable seat; 40-frame; 401-upper seat body; 402-base. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] like Figure 1 , 2 As shown, one embodiment of the present invention is: a layout structure of a standard sensor for a 10,000-ton force measuring device, including a chassis 11, n-layer voltage dividing units 12 and 3 n Standard sensors 13,3 n The standard sensors 13 are arranged in parallel on the chassis 11, and the n-layer voltage divider units 12 are located at 3 n The standard sensors 13 are above, where n≥2; from top to bottom, the first layer of voltage divider unit 121 has 1 voltage divider, and the nth layer of voltage divider unit has 3 (n-1) There are voltage dividers, each of which has three legs. The upper end surface of the voltage divider of the n-th voltage divider unit contacts the bottom surface of a leg of a voltage divider of the n-1-th voltage divider unit, and the upper end surface of the standard sensor 13 contacts the bottom surface of the leg of the voltage divider in the n-th voltage divider unit.

[0049] The beneficial effects of adopting the above technical solution are: each voltage divider adopts a three-leg pressure dividing method, and according to the three-point balance principle, it can ensure that each leg is balanced in force, and stably transmit the force to all standard sensors connected in parallel at the bottom, thereby improving the force measurement accuracy; if the standard sensor adopts a thousand-ton standard sensor that meets the measurement accuracy requirements, then the force measuring device or force standard machine can measure ten thousand tons of force that meets the measurement accuracy requirements, filling the global technical gap in the field of ten thousand-ton force measuring devices and force standard machines.

[0050] like Figure 1 As shown, in some other embodiments of the present invention, the voltage dividers in the same layer of voltage divider units have the same size, and the voltage dividers in different layers of voltage divider units gradually decrease in size from top to bottom. The three legs of each voltage divider are distributed in a circular array. The beneficial effects of adopting the above technical solution are: the structure is more compact and the force is more balanced and stable.

[0051] like Figure 4 As shown, in other embodiments of the present invention, among the contacting upper end surface of the standard sensor and the bottom surface of the voltage divider foot, the upper end surface of the standard sensor or the bottom surface of the voltage divider foot is a spherical surface; among the contacting upper end surface of the voltage divider and the bottom surface of the upper voltage divider foot, the upper end surface of the voltage divider or the bottom surface of the upper voltage divider foot is a spherical surface. The beneficial effect of adopting the above technical solution is that the contact surface adopts a spherical surface and a plane, which can automatically correct the height difference, adjust the force point, and ensure that the three points are balanced.

[0052] like Figure 1-3 As shown, in some other embodiments of the present invention, three pull rods 14 distributed along a circumferential array are provided between the voltage divider disk body of the first layer of voltage divider unit and the chassis. The pull rods 14 are distributed in the peripheral area of ​​the standard sensor. The pull rods 14 include an upper rod body 141, a lower rod body 142, a connecting sleeve 143 and a connecting shaft 144. The upper end of the upper rod body 141 is connected to the bottom surface of the uppermost voltage divider disk body by a thread, the lower end of the lower rod body 142 is connected to the upper end surface of the chassis 11 by a thread, and the lower end of the connecting shaft 144 is connected to the upper end of the lower rod body 142 by a thread. The upper end of the connecting sleeve 143 is connected to the lower end of the upper rod body 141 through a thread, the connecting shaft 144 includes a large outer diameter shaft portion 1441 located at the top and a small outer diameter shaft portion 1442 located in the middle, the connecting sleeve 143 includes a large inner hole portion 1431 located in the middle and a small inner hole portion 1432 located at the lower end, the large outer diameter shaft portion 1441 of the connecting shaft is located in the large inner hole portion 1431 of the connecting sleeve and there is a movable gap between the two, and the small outer diameter shaft portion 1442 of the connecting shaft is inserted into the small inner hole portion 1432 of the connecting sleeve and there is a movable gap between the two. The beneficial effect of adopting the above technical solution is that since the pressure-dividing units of each layer are in stacked contact, the pull rod plays an auxiliary support and protection role, which does not affect the force transmission between the pressure-dividing units of each layer, and plays a safety protection role.

[0053] like Figure 2 As shown, in some other embodiments of the present invention, the number of standard sensors 13 is 9, the number of layers of the voltage divider unit is 2, and the voltage divider unit includes a first layer voltage divider unit 121 located in the upper layer and a second layer voltage divider unit 122 located in the lower layer; the first layer voltage divider unit 121 includes a first voltage divider 1210, and the first voltage divider 1210 includes a first disk body 1211 and three first pressure heads 1212, and the first pressure head 1212 is located below the first disk body 1211, and the three first pressure heads 1212 are the first voltage divider. 1210; the second layer voltage divider unit 122 includes three second voltage dividers 1220, which are respectively located directly below the three first pressure heads 1212, each second voltage divider 1220 includes a second disk 1221 and three second pressure heads 1222, the second pressure heads 1222 are located below the second disk 1221, and the three second pressure heads 1222 are the three supporting legs of the second voltage divider 1220, and the second disk 1221 contacts the bottom surface of the first pressure head 1212 directly above it. The beneficial effect of adopting the above technical solution is: the 9 standard sensors are parallelly loaded with balanced force, and the force measurement range is increased to 9 times that of a single standard sensor.

[0054] In some other embodiments of the present invention, a first regulating plate is installed on the lower surface of the first disk of the first voltage divider, and the first regulating plate is provided with three first through holes with inner diameters slightly larger than the outer diameters of the upper ends of the first pressure heads. The upper ends of the first pressure heads pass through the first through holes and the upper end faces of the first pressure heads contact the lower surface of the first disk; Figure 5 As shown, a second regulating plate 1223 is installed on the lower surface of the second disk of the second voltage divider. The second regulating plate 1223 is provided with three second through holes 1224 whose inner diameter is slightly larger than the outer diameter of the upper end of the second pressure head 1222. The upper end of the second pressure head 1222 passes through the second through holes 1224 and the upper end surface of the second pressure head 1222 contacts the lower surface of the second disk 1221. Figure 4 As shown, a protruding central force-bearing portion 1225 is provided at the center of the upper surface of the second disk, and a downwardly protruding annular enclosure 1213 is provided on the lower surface of the first pressure head, and the inner diameter of the annular enclosure 1213 is slightly larger than the outer diameter of the central force-bearing portion 1225 of the second disk. The beneficial effect of adopting the above technical solution is that the position of the voltage divider can be stabilized to prevent displacement after multiple actions.

[0055] like Figure 6As shown, in some other embodiments of the present invention, the number of standard sensors is 27, the number of layers of voltage divider units is 3, and the voltage divider units include a first voltage divider unit 121 located in the upper layer, a second voltage divider unit 122 located in the middle layer, and a third voltage divider unit 123 located in the lower layer; the first voltage divider unit 121 includes a first voltage divider 1210; the second voltage divider unit 122 includes three second voltage dividers 1220; and the third voltage divider unit 123 includes nine third voltage dividers 1230. The beneficial effect of adopting the above technical solution is that the parallel distribution of 27 standard sensors can be realized, and the force measurement range is increased to 27 times that of a single standard sensor, which greatly improves the force measurement range of the force measuring device.

[0056] exist Figure 7 , a structural diagram of a force measuring device is shown, the force measuring device includes a frame 40, a force source unit 20, a parallel sensor unit 10 and a reaction frame 30, the frame 40 includes an upper seat 401, a base 402 and a column therebetween, the reaction frame 30 includes an upper pressure block 301, a movable seat 302 and a connecting screw therebetween, the parallel sensor unit 10 adopts the layout structure of the standard sensor of the present invention, the force source unit 20 is installed on the frame upper seat 401, the upper pressure block 301 of the reaction frame is pressed on the parallel sensor unit 10, the compressed product to be measured is placed between the movable seat 302 and the upper seat 401, the tensile product to be measured is connected between the movable seat 302 and the base 402, the force source unit 20 applies a driving force upward, and the force value of the product to be measured is determined by the standard sensor in the parallel sensor unit 10.

[0057] like Figure 8 , 9In order to make the 10,000-ton force measuring device have the ability to accurately measure the 1,000-ton force value, a 1,000-ton force measuring unit 21 is arranged below the chassis 11 of the parallel sensor total unit 10. The 1,000-ton force measuring unit 21 includes a lower pressure head 211, a 1,000-ton standard sensor 212 and a 1,000-ton force source 213. The lower pressure head 211 is arranged just below the center of the chassis, and the 1,000-ton standard sensor 212 is arranged between the lower pressure head 211 and the 1,000-ton force source 213. When the 1,000-ton force source 213 is lifted upward, the lower pressure head 211 contacts the bottom surface of the chassis 11. When the 1,000-ton force source 213 is retracted downward, the lower pressure head 211 is separated from the bottom surface of the chassis 11. A 10,000-ton force source 22 is also arranged on the outer ring of the 1,000-ton force measuring unit 213. When the 10,000-ton force source 22 is lifted upward, the force is transmitted to the chassis 11. The 1,000-ton force source and the 10,000-ton force source can apply force separately or simultaneously. The beneficial effects of adopting the above technical solution are: when the product to be tested is in the thousand-ton level, a thousand-ton force measuring unit is used for measurement; when the product to be tested is in the ten-thousand-ton level, a ten-thousand-ton force source and an upper parallel sensor cluster are used; this enables the force measuring device to accurately measure ten-thousand-ton forces as well as high-precision thousand-ton forces, greatly expanding the force measuring range of the force measuring device.

[0058] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A layout structure of a standard sensor for a 10,000-ton force measuring device, characterized in that: Including chassis, n-layer voltage divider unit and 3 n Standard sensors, 3 n The standard sensors are arranged in parallel on the chassis, and the n-layer voltage divider units are located at 3 n Above the standard sensors, where n ≥ 2; from top to bottom, the first layer of voltage divider units has 1 voltage divider, and the nth layer of voltage divider units has 3 (n-1) The invention discloses a voltage divider, each of which has three legs, the upper end surface of the voltage divider of the n-th voltage divider unit contacts the bottom surface of a leg of a voltage divider of the n-1-th voltage divider unit, and the upper end surface of the standard sensor contacts the bottom surface of the leg of the voltage divider in the n-th voltage divider unit.

2. The layout structure of the standard sensor of the 10,000-ton force measuring device according to claim 1 is characterized in that: The voltage dividers in the voltage divider units of the same layer have the same size, and the voltage dividers in the voltage divider units of different layers gradually decrease in size from top to bottom; the three legs of each voltage divider are distributed in a circular array.

3. The layout structure of the standard sensor of the 10,000-ton force measuring device according to claim 2 is characterized in that: Among the contacting upper end surface of the standard sensor and the bottom surface of the voltage divider foot, the upper end surface of the standard sensor or the bottom surface of the voltage divider foot is a spherical surface; among the contacting upper end surface of the voltage divider and the bottom surface of the upper voltage divider foot, the upper end surface of the voltage divider or the bottom surface of the upper voltage divider foot is a spherical surface.

4. The layout structure of the standard sensor of the 10,000-ton force measuring device according to claim 3 is characterized in that: Three pull rods distributed along a circumferential array are provided between the voltage divider disk body and the chassis of the first-layer voltage divider unit, and the pull rods are distributed in the peripheral area of ​​the standard sensor, the pull rods include an upper rod body, a lower rod body, a connecting sleeve and a connecting shaft, the upper end of the upper rod body is connected to the bottom surface of the uppermost voltage divider disk body by a thread, the lower end of the lower rod body is connected to the upper end surface of the chassis by a thread, the lower end of the connecting shaft is connected to the upper end of the lower rod body by a thread, the upper end of the connecting sleeve is connected to the lower end of the upper rod body by a thread, the connecting shaft includes a large outer diameter shaft portion located at the top and a small outer diameter shaft portion located in the middle, the connecting sleeve includes a large inner hole portion located in the middle and a small inner hole portion located at the lower end, the large outer diameter shaft portion of the connecting shaft is located in the large inner hole portion of the connecting sleeve and there is a movable gap between the two, and the small outer diameter shaft portion of the connecting shaft is penetrated into the small inner hole portion of the connecting sleeve and there is a movable gap between the two.

5. The layout structure of the standard sensor of the 10,000-ton force measuring device according to claim 1 is characterized in that: n=2, the number of standard sensors is 9, the number of layers of the voltage divider unit is 2, and the voltage divider unit includes a first layer of voltage divider units located at the upper layer and a second layer of voltage divider units located at the lower layer; The first-layer voltage divider unit includes a first voltage divider, the first voltage divider includes a first disk body and three first pressure heads, and the first pressure heads are located below the first disk body; The second-layer voltage divider unit includes three second voltage dividers, and the three second voltage dividers are respectively located directly below the three first pressure heads. Each of the second voltage dividers includes a second disk body and three second pressure heads. The second pressure heads are located below the second disk body, and the second disk body contacts the bottom surface of the first pressure head directly above it.

6. The layout structure of the standard sensor of the 10,000-ton force measuring device according to claim 5 is characterized in that: A first regulating plate is installed on the lower surface of the first disk of the first voltage divider, and the first regulating plate is provided with three first through holes with an inner diameter slightly larger than the outer diameter of the upper end of the first pressure head. The upper end of the first pressure head passes through the first through holes and the upper end surface of the first pressure head contacts the lower surface of the first disk; a second regulating plate is installed on the lower surface of the second disk of the second voltage divider, and the second regulating plate is provided with three second through holes with an inner diameter slightly larger than the outer diameter of the upper end of the second pressure head. The upper end of the second pressure head passes through the second through holes and the upper end surface of the second pressure head contacts the lower surface of the second disk; an outwardly convex central force-bearing portion is provided at the central position of the upper surface of the second disk, and the lower surface of the first pressure head has a downwardly convex annular enclosure, and the inner diameter of the annular enclosure is slightly larger than the outer diameter of the central force-bearing portion of the second disk.

7. The layout structure of the standard sensor of the 10,000-ton force measuring device according to claim 1 is characterized in that: n=3, the number of standard sensors is 27, the number of layers of voltage divider units is 3, and the voltage divider units include a first voltage divider unit located at the upper layer, a second voltage divider unit located at the middle layer, and a third voltage divider unit located at the lower layer; The first-layer voltage divider unit includes a first voltage divider, the first voltage divider includes a first disk body and three first pressure heads, and the first pressure heads are located below the first disk body; The second-layer voltage divider unit includes three second voltage dividers, which are respectively located directly below the three first pressure heads, each of which includes a second disk and three second pressure heads, the second pressure head is located below the second disk, and the second disk contacts the bottom surface of the first pressure head directly above it; The third-layer voltage divider unit includes 9 third voltage dividers, which are respectively located directly below the 9 second pressure heads. Each of the third voltage dividers includes a third disk body and 3 third pressure heads. The third pressure heads are located below the third disk body. The third disk body contacts the bottom surface of the second pressure head directly above it, and the bottom surface of each third pressure head contacts the upper end surface of a standard sensor.

8. The layout structure of the standard sensor of the 10,000-ton force measuring device according to claim 1 is characterized in that: A 1,000-ton force measuring unit is arranged below the chassis, and the 1,000-ton force measuring unit includes a downward pressure head, a 1,000-ton standard sensor and a 1,000-ton force source. The downward pressure head is arranged directly below the center of the chassis, and the 1,000-ton standard sensor is arranged between the downward pressure head and the 1,000-ton force source. When the 1,000-ton force source is lifted upward, the downward pressure head contacts the bottom surface of the chassis. When the 1,000-ton force source is retracted downward, the downward pressure head is separated from the bottom surface of the chassis. A 10,000-ton force source is also arranged on the outer ring of the 1,000-ton force measuring unit. When the 10,000-ton force source is lifted upward, the force is transmitted to the chassis.

9. A method for configuring a standard sensor for a 10,000-ton force measuring device, characterized in that: The following steps are involved: Step 1, obtaining the maximum force value F1 and test accuracy requirements required for the product to be tested; Step 2, selecting a standard sensor that can meet the test accuracy requirements, and obtaining the maximum measurable force value F2 of the standard sensor; Step 3, calculate m=F1 / F2, and substitute m into formula 3 (n-1) ≤m≤3 n , where n is an integer, 3 is selected n Standard sensors; Step 4, performing 3 by using the layout structure of the standard sensor of the 10,000-ton force measuring device as claimed in claim 1 n A standard sensor layout.

10. The configuration method of the standard sensor of the 10,000-ton force measuring device according to claim 9, characterized in that: The method further includes step 5 of configuring a standard sensor below the bottom surface of the chassis.

Citation Information

Patent Citations

  • Layout structure of standard sensor of 10000-ton force measuring device

    CN213481593U