Non-rail weighing device for industrial and mining vehicles

Abstract

The application provides a non-track weighing device for industrial and mining vehicles, which comprises a plurality of wheel load supporting devices corresponding to wheel pairs, a wheel load instrument is installed on the top of the wheel load supporting device, and a wheel load supporting adjustable device is used on the wheel load instrument; the wheel load supporting device comprises an upper supporting disc and a lower supporting disc, the upper supporting disc and the lower supporting disc are connected through a height adjusting mechanism, and the upper end surface of the upper supporting disc is provided with the wheel load instrument; the wheel load supporting adjustable device comprises a base, a supporting table and a positioning plate are arranged on the upper surface of the base, a groove matched with the wheel is formed in the supporting table, and a fixing device for fixing the wheel load supporting adjustable device on the inner side surface of the wheel is arranged on the positioning plate. The application realizes the adjustable positioning and supporting of the wheel tread supporting point, the gravity self-centering of the device, solves the wheel-rail gap, and the random and uncertain problem of the wheel tread supporting contact point.

Description

Technical Field

[0001] This invention belongs to the field of industrial and mining locomotive quality measurement, and particularly relates to a non-railway weighing device for industrial and mining locomotives. Background Technology

[0002] In the field of locomotive weight measurement, parameters such as wheel load, axle load, and curb weight are mostly measured using the national standard GB / T 10762 "Methods for Measuring the Weight of Mining Locomotives". However, GB / T 10762 requires the use of measuring rails, a straight track for guide rails, and measuring instruments. This results in high manufacturing costs for the measuring system, making it impossible for many small and medium-sized enterprises (SMEs) producing mining locomotives to invest in measurement systems compliant with GB / T 10762. They can only rely on a few large enterprises or institutions that use such systems, severely restricting the efficiency of SMEs in verifying locomotive design counterweights. Furthermore, traditional track weighing devices are expensive and difficult for SMEs to afford. Additionally, due to the gap A between the locomotive wheels and the running track, and the tapered wheel tread, etc., Figure 10 As shown. Therefore, during measurement, the positions of the contact points between the track and the wheel tread support are random, resulting in poor data repeatability. GB / T10762 requires that "the difference between the maximum and minimum values ​​of consecutive wheel weight measurements divided by the arithmetic mean of six measurements must not exceed 1.2% for the measurement result to be considered valid," which also indirectly illustrates the discreteness and randomness of the measurement data. Summary of the Invention

[0003] The purpose of this invention is to provide a non-railway weighing device for industrial and mining locomotives to solve the technical problem of the discreteness and randomness of locomotive mass measurement data.

[0004] To solve the above-mentioned technical problems, the specific technical solution of the present invention is as follows:

[0005] A non-rail weighing device for industrial and mining locomotives includes multiple wheel load support devices corresponding to wheels, a wheel load meter is installed on the top of each wheel load support device, and an adjustable wheel load support device is placed on the wheel load meter.

[0006] The wheel load support device includes an upper support plate and a lower support plate, which are connected by a height adjustment mechanism. The lower end face of the lower support plate is provided with multiple horizontal adjustment bolts, and the wheel load meter is installed on the upper end face of the upper support plate.

[0007] The wheel load support adjustable device includes a base, the upper surface of which is provided with a support platform and a positioning plate. A groove matching the wheel is provided on the support platform. The positioning plate is disposed on one side of the support platform and is slidably connected to the base. The positioning plate is provided with a fixing device for fixing the wheel load support adjustable device to the inner side of the wheel.

[0008] Therefore, the non-railway weighing device for mining locomotives of the present invention consists of three parts: a wheel load support device, a wheel load meter, and an adjustable wheel load support device. The wheel load support device, through self-leveling adjustment of the wheel support points and the leveling adjustment of adjacent wheel support points, enables small and medium-sized enterprises producing mining locomotives to conduct locomotive quality measurements on hard surfaces in the workshop. The adjustable wheel load support device, through adjustable positioning and support of the wheel tread support points and self-centering of the device's gravity, solves the problems of wheel-rail clearance and random uncertainty of wheel tread support contact points, avoiding the dispersion and randomness of locomotive quality measurement data. Furthermore, the weighing device of this application eliminates the need for a weighing track, saving space and significantly reducing costs.

[0009] Furthermore, the height adjustment mechanism connects the center of the upper support plate and the lower support plate, and several guide posts are provided between the upper support plate and the lower support plate. The lower end of the guide post is fixed to the upper surface of the lower support plate, and the upper end of the guide post penetrates through the upper support plate.

[0010] Furthermore, the height adjustment mechanism includes an adjustment mandrel, an upper threaded section and a lower threaded section disposed on the adjustment mandrel, wherein the upper threaded section and the lower threaded section rotate in opposite directions, and the upper support plate and the lower support plate are both threadedly connected to the adjustment mandrel.

[0011] Furthermore, the adjusting mandrel is provided with an adjusting element between the upper thread section and the lower thread section to drive the adjusting mandrel to rotate.

[0012] Furthermore, support screws are provided on both sides of the groove, and the ends of the support screws are spherical.

[0013] Furthermore, the support screws are symmetrically arranged on both sides of the groove.

[0014] Furthermore, the positioning plate includes a horizontal plate and a vertical plate. The horizontal plate is located at the bottom of the vertical plate. An oblong hole is formed on the horizontal plate. The extension direction of the oblong hole is perpendicular to the vertical plate. An adjusting bolt passes through the oblong hole to connect the positioning plate to the base.

[0015] Furthermore, the center of gravity G of the wheel load support adjustable device is located on the center line of the wheel load support adjustable device and is lower than 1 / 2 of the total height H of the wheel load support adjustable device.

[0016] Furthermore, the fixing device is a switching magnetic base, which is located on the side opposite to the support platform.

[0017] Furthermore, the lower surface of the base matches the shape of the upper surface of the wheel load meter.

[0018] To address the technical problem of the discreteness and randomness of locomotive mass measurement data, based on the same inventive concept, this invention also provides a non-railway weighing method for industrial and mining locomotives, which includes the following steps:

[0019] Step 1: Based on the number of locomotive wheels and the distance between their positions, place the corresponding number of wheel load support devices on the ground according to the wheel distribution positions.

[0020] Step 2: Adjust the leveling bolts of each wheel load support device to ensure that the wheel load indicator on each wheel load support device is in a horizontal state.

[0021] Step 3: Using the working plane of one of the wheel load meters as a reference, adjust the height adjustment mechanism of the adjacent wheel load support devices respectively so that the height difference between the working planes of the adjacent wheel load meters reaches the specified value.

[0022] Step 4: Zero the wheel load tester in preparation for the weighing test.

[0023] Step 5: Adjust the positioning plate of the adjustable wheel load support device. Determine the position of the wheel tread weighing support point according to the test requirements. Preferably, by turning off the switch magnetic base, adjust the position of the inner side of the wheel to the center of the support screw, slide the positioning plate until it contacts the inner side of the wheel, and then fix the positioning plate to the base with the adjusting bolts. This determines the position of the wheel tread support point.

[0024] Step Six: Following the requirements of Step Five, install the wheel load support adjustable device onto each wheel of the locomotive, turn on the switch magnetic base, and make the wheel load support adjustable device magnetically attract the wheel.

[0025] Step 7: Hoist the locomotive equipped with the wheel load support adjustable device onto the wheel load meter prepared in Step 4.

[0026] Step 8: Begin weighing and record the weight of each wheel as one measurement.

[0027] Step 9: Repeat step 7 until the set number of measurement data is completed.

[0028] Step 10: Calculate the difference between the maximum and minimum values ​​of the continuous measurement results for the same wheel weight. Divide the result by the arithmetic mean of the measured results for the set number of times. If the difference does not exceed the rated error value, the measurement result can be considered valid. Otherwise, return to step 7.

[0029] Step 11: Based on the measurement results, calculate the average weight of each wheel (axle). The data is rounded to the nearest whole number of measurements taken. The unit is kilograms.

[0030] Step 12: Calculate the required parameters such as wheel load, axle load, curb weight, empty vehicle weight, wheel load deviation rate, and axle load deviation rate according to GB / T 10762.

[0031] Step 13: Complete the off-track weighing test of the mining locomotive.

[0032] The preferred number of cycles is 6. The preferred rated error value is 1.2%.

[0033] The off-track weighing device for industrial and mining locomotives of the present invention has the following advantages:

[0034] This invention enables small and medium-sized enterprises (SMEs) producing mining locomotives to conduct quality measurements on hard surfaces in their workshops by adjusting the self-leveling of the wheel support points and the leveling of adjacent wheel support points. Simultaneously, through the adjustable positioning and support of the wheel tread support points and the self-centering of the device under gravity, it solves the problems of wheel-rail clearance and the random and uncertain contact points of the wheel tread support. Because the wheel support points are fixed, the measurement data exhibits good reproducibility, providing SMEs with a quick and economical method for verifying locomotive design counterweights. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the non-track weighing device for industrial and mining locomotives according to the present invention;

[0036] Figure 2 This is a schematic diagram of the wheel load meter structure of the present invention;

[0037] Figure 3 This is a schematic diagram of the wheel load support device of the present invention;

[0038] Figure 4 This is a front view of the wheel load support device of the present invention;

[0039] Figure 5 This is an exploded view of the wheel load support device of the present invention;

[0040] Figure 6 This is a diagram showing the usage state of the adjustable wheel load support device of the present invention;

[0041] Figure 7 This is a schematic diagram of the adjustable wheel load support device of the present invention;

[0042] Figure 8 This is a schematic diagram showing the center of gravity position of the wheel load support adjustable device of the present invention;

[0043] Figure 9 This is a schematic diagram showing the location of the tread weighing support point in this invention;

[0044] Figure 10 This is a schematic diagram of the wheels and the running track.

[0045] The markings in the diagram are as follows: 1. Wheel load support device; 11. Upper support plate; 12. Lower support plate; 13. Adjusting spindle; 131. Upper threaded section; 132. Lower threaded section; 14. Horizontal adjustment bolt; 15. Guide column; 16. Adjusting component; 2. Wheel load meter; 3. Adjustable wheel load support device; 31. Base; 32. Support platform; 33. Positioning plate; 331. Horizontal plate; 332. Vertical plate; 333. Waist-shaped hole; 334. Adjusting bolt; 34. Groove; 341. Support screw; 35. Fixing device; 4. Wheel. Detailed Implementation

[0046] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.

[0047] like Figure 1 As shown, a non-railway weighing device for mining locomotives according to the present invention includes multiple wheel load support devices 1 corresponding to the wheels, a wheel load meter 2 is installed on the top of the wheel load support device 1, and an adjustable wheel load support device 3 is placed on the wheel load meter 2.

[0048] like Figures 2 to 5 As shown, the wheel load support device 1 includes an upper support plate 11 and a lower support plate 12, which are connected by a height adjustment mechanism. Specifically, the height adjustment mechanism connects the centers of the upper support plate 11 and the lower support plate 12. Several guide posts 15 are also provided between the upper support plate 11 and the lower support plate 12. The lower end of each guide post 15 is fixed to the upper surface of the lower support plate 12, and the upper end of each guide post 15 passes through the upper support plate 11. The height adjustment mechanism includes an adjustment spindle 13, with an upper threaded section 131 and a lower threaded section 132 disposed on the adjustment spindle 13. The upper threaded section 131 and the lower threaded section 132 have opposite directions of rotation. Both the upper support plate 11 and the lower support plate 12 are threadedly connected to the adjustment spindle 13. The adjustment spindle 13 also has an adjustment element 16 between the upper threaded section 131 and the lower threaded section 132 to drive the adjustment spindle 13 to rotate. The lower end face of the lower support plate 12 is provided with a plurality of horizontal adjustment bolts 14, and the wheel load meter 2 is installed on the upper end face of the upper support plate 11.

[0049] like Figure 6 and Figure 7As shown, the wheel load support adjustable device 3 includes a base 31. The upper surface of the base 31 is provided with a support platform 32 and a positioning plate 33. The lower surface of the base 31 matches the shape of the upper surface of the wheel load meter 2. A groove 34 matching the wheel is opened on the support platform 32. Support screws 341 are provided on both side walls of the groove 34. The ends of the support screws 341 are spherical. Preferably, the support screws 341 are symmetrically arranged on both side walls of the groove 34. The positioning plate 33 is disposed on one side of the support platform 32 and is slidably connected to the base 31. Specifically, the positioning plate 33 includes a horizontal plate 331 and a vertical plate 332. The horizontal plate 331 is disposed at the bottom of the vertical plate 332. An oblong hole 333 is opened on the horizontal plate 331. The extending direction of the oblong hole 333 is perpendicular to the vertical plate 332. An adjusting bolt 334 passes through the oblong hole 333 to connect the positioning plate 33 to the base 31. The positioning plate 33 is provided with a fixing device 35 for fixing the wheel load support adjustable device 3 to the inner side of the wheel 4. Preferably, the fixing device 35 is a switching magnetic base, which is located on the side opposite to the support platform 32. Figure 8 As shown, preferably, the center of gravity G of the wheel load support adjustable device 3 is located on the center line of the wheel load support adjustable device 3 and is lower than 1 / 2 of the total height H of the wheel load support adjustable device 3.

[0050] This embodiment also provides a method for weighing off-track industrial and mining locomotives using the off-track weighing device described above, comprising the following steps:

[0051] Step 1: Based on the number of locomotive wheels and the distance between their positions, place the corresponding number of wheel load support devices 1 on the ground according to the distribution positions of the wheels 4, such as... Figure 2 As shown.

[0052] Step 2: Adjust the horizontal adjustment bolts 14 of each wheel load support device 1, and use a level to make the wheel load indicator 2 on each wheel load support device 1 in a horizontal state.

[0053] Step 3: Using the working plane of one of the wheel load meters 2 as a reference, adjust the height adjustment mechanism of the adjacent wheel load support devices 1 respectively so that the height difference between the working planes of each adjacent wheel load meter reaches the specified value, such as less than 1.0mm.

[0054] Step 4: Zero the wheel load meter 2 in preparation for the weighing test.

[0055] Step 5: Adjust the positioning plate 33 of the adjustable wheel load support device 3. Determine the position W of the wheel 4 tread weighing support point according to the test requirements. Figure 7 and Figure 9As shown, turn off the switch magnetic base, adjust the position W of the inner side of the wheel 4 to the center of the support screw 341, and slide the positioning plate 33 to contact the inner side of the wheel. Then fix the positioning plate 33 on the base 31 by adjusting the bolt 334, thus determining the position of the wheel tread support point.

[0056] Step Six: Following the requirements of Step Five, install the wheel load support adjustable device 3 onto each wheel 4 of the locomotive, and turn on the magnetic base switch to magnetically attract the wheel load support adjustable device 3 to the wheel 4. Figure 6 As shown.

[0057] Step 7: Hoist the locomotive with the wheel load support adjustable device 3 installed onto the wheel load meter 2 prepared in Step 4. Be careful to lift and place it gently.

[0058] Step 8: Begin weighing and record the weight of each wheel 4 as one measurement.

[0059] Step 9: Repeat step 7 until six measurements are complete.

[0060] Step 10: If the difference between the maximum and minimum values ​​of the continuous measurement results of the same wheel weight is divided by the arithmetic mean of the 6 measurement results, the measurement result can be considered valid; otherwise, jump back to step 7.

[0061] Step 11: Based on the measurement results, calculate the average weight of each wheel (axle). The data is rounded to the nearest kilogram based on the arithmetic mean of the six measurements.

[0062] Step 12: Calculate the required parameters such as wheel load, axle load, curb weight, empty vehicle weight, wheel load deviation rate, and axle load deviation rate according to GB / T10762.

[0063] Step 13: Complete the off-track weighing test of the mining locomotive.

[0064] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A non-railway weighing device for industrial and mining locomotives, characterized in that, It includes multiple wheel load support devices (1) corresponding to the wheels, and a wheel load meter (2) is installed on the top of the wheel load support device (1). The wheel load meter (2) is used to place the wheel load support adjustable device (3). The wheel load support device (1) includes an upper support plate (11) and a lower support plate (12). The upper support plate (11) and the lower support plate (12) are connected by a height adjustment mechanism. The lower end face of the lower support plate (12) is provided with a plurality of horizontal adjustment bolts (14). The wheel load meter (2) is installed on the upper end face of the upper support plate (11). The wheel load support adjustable device (3) includes a base (31), the upper surface of the base (31) is provided with a support platform (32) and a positioning plate (33), the support platform (32) is provided with a groove (34) that matches the wheel, the positioning plate (33) is provided on one side of the support platform (32) and is slidably connected to the base (31), and the positioning plate (33) is provided with a fixing device (35) for fixing the wheel load support adjustable device (3) to the inner side of the wheel.

2. The non-railway weighing device for industrial and mining locomotives according to claim 1, characterized in that, The height adjustment mechanism connects the center of the upper support plate (11) and the lower support plate (12). Several guide posts (15) are also provided between the upper support plate (11) and the lower support plate (12). The lower end of the guide post (15) is fixed on the upper surface of the lower support plate (12), and the upper end of the guide post (15) passes through the upper support plate (11).

3. The non-railway weighing device for industrial and mining locomotives according to claim 2, characterized in that, The height adjustment mechanism includes an adjustment spindle (13), an upper threaded section (131) and a lower threaded section (132) disposed on the adjustment spindle (13), and the upper threaded section (131) and the lower threaded section (132) have opposite rotation directions. The upper support plate (11) and the lower support plate (12) are both threadedly connected to the adjustment spindle (13).

4. The non-railway weighing device for industrial and mining locomotives according to claim 3, characterized in that, The adjusting spindle (13) is further provided with an adjusting component (16) between the upper thread section (131) and the lower thread section (132) to drive the adjusting spindle (13) to rotate.

5. The non-railway weighing device for industrial and mining locomotives according to claim 1, characterized in that, Support screws (341) are provided on both sides of the groove (34), and the ends of the support screws (341) are spherical.

6. The non-railway weighing device for industrial and mining locomotives according to claim 5, characterized in that, The support screws (341) are symmetrically arranged on both sides of the groove (34).

7. The non-railway weighing device for industrial and mining locomotives according to any one of claims 1-6, characterized in that, The positioning plate (33) includes a horizontal plate (331) and a vertical plate (332). The horizontal plate (331) is located at the bottom of the vertical plate (332). The horizontal plate (331) has an oblong hole (333) on it. The extension direction of the oblong hole (333) is perpendicular to the vertical plate (332). An adjusting bolt (334) passes through the oblong hole (333) to connect the positioning plate (33) to the base (31).

8. The non-railway weighing device for industrial and mining locomotives according to any one of claims 1-6, characterized in that, The center of gravity G of the wheel load support adjustable device (3) is located on the center line of the wheel load support adjustable device (3) and is lower than 1 / 2 of the total height H of the wheel load support adjustable device (3).

9. The non-railway weighing device for industrial and mining locomotives according to any one of claims 1-6, characterized in that, The fixing device (35) is a switching magnetic base, which is located on the side away from the support platform (32).

10. The non-railway weighing device for industrial and mining locomotives according to any one of claims 1-6, characterized in that, The lower surface of the base (31) matches the shape of the upper surface of the wheel load instrument (2).

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