Electronic weighing system for measuring nozzle unevenness and nozzle unevenness measuring apparatus

Abstract

The application discloses a nozzle unevenness measuring electronic weighing system and nozzle unevenness measuring equipment, which comprises two groups of support assemblies, a funnel oil guiding device and an oil receiving and weighing device. The funnel oil guiding device comprises a funnel oil guiding group, which comprises a plurality of funnels arranged in sequence along the length direction. The plurality of funnels are arranged one by one corresponding to a plurality of sector plates in the nozzle unevenness measuring equipment, so as to collect the lubricating oil distributed by the corresponding sector plates and guide the lubricating oil downward. The oil receiving and weighing device comprises a plurality of groups of oil receiving and weighing units arranged one by one corresponding to the plurality of funnels. Each group of oil receiving and weighing units comprises an oil cup, a mounting member for mounting the oil cup, and an electronic scale connected with the mounting member for weighing. Through the selection of the oil cup material and the structure of the oil cup and the mounting member in each group of oil receiving and weighing units, the weighing range of the electronic scale is not greater than 200g. The system can greatly shorten the test time, especially the small flow measurement time, and improve the measurement efficiency and accuracy.

Description

TECHNICAL FIELD

[0001] The present application relates to the nozzle unevenness measurement technical field, particularly, to a nozzle unevenness measurement electronic weighing system. In addition, the present application also relates to a nozzle unevenness measurement device comprising the nozzle unevenness measurement electronic weighing system. BACKGROUND

[0002] After the nozzle of an aero-engine is processed, the processing quality needs to be detected, and the nozzle spray cone needs to be measured for unevenness by using equipment, that is, the uniformity of 12 sectors of the nozzle spray cone cross section needs to be measured. In the existing measurement equipment, a sector plate for dividing the nozzle spray cone cross section into 12 sectors and a weighing system for receiving and weighing 12 groups of sub-oil respectively derived from the 12 sector plates are included.

[0003] In the prior art, due to the variety of nozzles and the complexity of test conditions, such measurement equipment is usually a special-purpose device, and therefore multiple special-purpose devices need to be built for test requirements, which leads to the need for a lot of space and a large amount of capital investment.

[0004] The measurement range of the existing product is between 40 and 1600 ml / min, and after being measured by the 12 measuring cups of the weighing system, the measurement of each measuring cup is 3.3-133 ml / min. When measuring a small-flow nozzle, due to the heavy weight of the existing measuring cup, oil control valve, etc., the weight of a single group reaches more than 2 kg, and therefore the electronic scale used for weighing usually selects 6 kg or 10 kg, and when a large-range electronic scale is used to weigh small-flow oil, in order to eliminate the weighing error and achieve the requirement of 0.5% measurement accuracy, the main method is to increase the oil collection capacity to cover the measurement of small flow, that is, to prolong the oil receiving time of the measuring cup to increase the oil receiving weight, thereby greatly prolonging the measurement time, resulting in very low measurement efficiency, and the precision is also low when measuring small flow. SUMMARY

[0005] The present application provides a nozzle unevenness measurement electronic weighing system and a nozzle unevenness measurement device to solve the technical problems of long measurement time, low measurement efficiency and low measurement accuracy of small-flow nozzles in the existing weighing system.

[0006] The technical solution adopted by the present application is as follows:

[0007] The electronic weighing system for measuring nozzle unevenness comprises two sets of support assemblies arranged in relative spacing, a funnel oil guiding device and an oil receiving and weighing device connected between the two sets of support assemblies, and the oil receiving and weighing device is located below the funnel oil guiding device; the funnel oil guiding device comprises a funnel oil guiding group arranged transversely between the two sets of support assemblies, and the funnel oil guiding group comprises a plurality of funnels arranged in sequence along the length direction, and the plurality of funnels are arranged one by one corresponding to a plurality of sector plates in the nozzle unevenness measuring equipment, so as to collect the lubricating oil distributed by the corresponding sector plates and guide the lubricating oil downward; the oil receiving and weighing device comprises a plurality of oil receiving and weighing units arranged one by one corresponding to the plurality of funnels, each of the oil receiving and weighing units comprises an oil cup for receiving the lubricating oil guided by the funnel arranged above, a mounting member for mounting the oil cup, and an electronic scale connected with the mounting member for weighing, and the weighing range of the electronic scale is not greater than 200g through the selection of the material of the oil cup and the structure of the oil cup and the mounting member in each oil receiving and weighing unit.

[0008] Further, the oil cup is made of aluminum or plastic material, and the weight of the oil cup is not greater than 50g, and the capacity of the oil cup is 20-40ml.

[0009] Further, the mounting member comprises a connecting plate, two mounting plates, two sets of bearings and two mounting pins, one side of the connecting plate is fixed with the corresponding electronic scale, the other side of the connecting plate is concave to form a mounting opening, the two mounting plates are fixed on the two sides of the mounting opening respectively, and the two sets of bearings are arranged in the two mounting plates respectively, and the two sides of the oil cup are respectively arranged in the corresponding side bearing through the fixed connection of one mounting pin to rotate and be arranged on the connecting plate.

[0010] Further, the oil receiving and weighing device further comprises an oil pouring driving mechanism, the oil pouring driving mechanism is connected with the oil cups of the plurality of oil receiving and weighing units arranged in transverse arrangement to drive the plurality of oil cups to pour oil at the same time.

[0011] Further, the oil cup comprises an oil receiving cup for receiving oil and a lever connected to the bottom of the oil receiving cup, the oil pouring driving mechanism comprises a pull plate arranged in transverse extension, a first sliding block fixed on both ends of the pull plate, two first sliding rails fixed on the two sets of support assemblies respectively matched with the two first sliding blocks, and two first extension cylinders respectively fixed with the two sliding blocks, a plurality of through holes penetrating through the surface of the pull plate are formed on the pull plate corresponding to the plurality of oil cups, the levers of the oil cups are arranged in the corresponding through holes, so that the pull plate is longitudinally shifted in the extension and retraction process of the first extension cylinder, and the plurality of oil cups are simultaneously pulled to the tilting angle by the pull plate to pour oil.

[0012] Further, the oil receiving and weighing device further comprises an oil receiving groove for receiving the poured lubricating oil, the oil receiving groove is located on the oil pouring side of the oil cup and is connected with the two sets of support assemblies at both ends after transverse extension.

[0013] Further, the oil receiving and weighing device further comprises a support plate for installation support, the support plate is transversely extended and two ends thereof are detachably connected with two groups of support assemblies on two sides respectively; a plurality of oil receiving and weighing units are evenly spaced along the length direction of the support plate, and one end of an electronic scale of each oil receiving and weighing unit is detachably fixed with the support plate, and the other cantilever end of the electronic scale is detachably connected with the installation member.

[0014] Further, the oil receiving and weighing device is in multiple groups, and the multiple groups of oil receiving and weighing devices are sequentially arranged along a longitudinal direction perpendicular to the transverse direction; the funnel oil guiding device further comprises a funnel driving mechanism connected with the funnel oil guiding groups, so as to drive the funnel oil guiding groups to slide along the longitudinal direction to guide the oil after receiving the oil by the multiple groups of oil receiving and weighing devices.

[0015] Further, the funnel oil guiding group further comprises a transversely arranged installation horizontal plate, a plurality of installation holes penetrating the plate are evenly spaced along the length direction of the installation horizontal plate, or a plurality of funnels are detachably arranged in the installation holes, or the funnels are evenly spaced and formed along the length direction of the installation horizontal plate; the funnel driving mechanism comprises two second sliding blocks fixed on two ends of the installation horizontal plate, two groups of door-shaped frames, two second sliding rails matched with the two second sliding blocks and fixed on two groups of support assemblies on two sides, and two groups of second telescopic cylinders connected with the two groups of door-shaped frames respectively; the two groups of door-shaped frames are fixed with the two second sliding blocks respectively, the second telescopic cylinders are bidirectional driving cylinders, and two ends of the bidirectional driving cylinders are fixed with two sides of the corresponding door-shaped frames respectively.

[0016] According to another aspect of the present application, there is also provided a nozzle unevenness measuring device comprising the electronic weighing system for nozzle unevenness measurement according to any one of the above.

[0017] The present application has the following advantages:

[0018] The electronic weighing system of the present application, through the material selection of the oil cup and the structural setting of the oil cup and the mounting member, the weighing range of the electronic scale can be not more than 200g, so that the weight of the oil cup can be not more than 50g, compared with the previous large capacity measuring cup, the weight of the oil cup of the present application can be designed to be not more than 50g, which is less than 1 / 20 of the weight of the existing large capacity measuring cup, and the existing electronic scale adopts the oil discharge of the explosion-proof electromagnetic valve, the weight of this type of electronic scale is not less than 2kg, so the electronic scale usually adopts the 6kg range, so even for the 0.01% precision electronic scale, the existing 6kg range electronic scale also has a measurement error of 0.6g, for the measurement accuracy which must reach 0.5% within the time, the measuring cup needs to receive at least 120g extra to eliminate the 0.6g error, and for the small flow of 3.3ml / min (2.57g / min) itself, combined with the uneven problem of the nozzle itself, the oil collected by the 12 measuring cups (the existing 12 sector plates are used, so 12 measuring cups are needed, or other number of sector plates, at this time only the number of measuring cups corresponds to the number of sector plates) is inconsistent, in order to ensure that each measuring cup can eliminate the 0.6g measurement error, at least 50 minutes of oil receiving is needed to ensure that the measurement accuracy of each measuring cup meets the requirements; while in the present application, the weighing range of the electronic scale is not more than 200g, and the weight of the oil cup is not more than 50g, when the accuracy of the electronic scale is 0.01% and the required measurement accuracy is 0.5%, the oil cup only needs to receive 0.4g of lubricating oil extra, for the oil receiving amount of 3.3ml / min, that is, a few seconds can eliminate the measurement error, the whole oil receiving time of the oil cup is not more than 1.5 minutes, so the electronic weighing system of the present application, due to the reduction of the weight of the oil cup, greatly improves the ratio of the weight of the oil to the weight of the oil cup, so for the small flow nozzle, it is no longer necessary to prolong the oil receiving time to increase the oil receiving weight of the oil cup, in order to eliminate the inherent error of the electronic scale, so the test time can be greatly shortened, especially the small flow measurement time, thereby improving the measurement efficiency, and the range of the electronic scale is not more than 200g, so the accuracy of small flow measurement can also be effectively improved, especially suitable for small flow nozzle measurement; on the other hand, when the electronic weighing system of the present application is used for weighing measurement, the whole weighing process can be directly observed, so it is easy to overhaul and maintain.

[0019] The nozzle unevenness measuring device of the present application no longer needs to prolong the oil receiving time to increase the oil receiving weight of the oil cup, in order to eliminate the inherent error of the electronic scale, so the test time can be greatly shortened, especially the small flow measurement time, thereby improving the measurement efficiency, and the range of the electronic scale is not more than 200g, so the accuracy of small flow measurement can also be effectively improved, especially suitable for small flow nozzle measurement; on the other hand, when the nozzle unevenness measuring device of the present application is used for weighing measurement, the whole weighing process can be directly observed, so it is easy to overhaul and maintain.

[0020] In addition to the objects, features and advantages described above, the present application has other objects, features and advantages. These and other objects, features and advantages of the present application will become apparent with reference to the drawings, in which: BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the application, and are incorporated by reference in their entirety. In the drawings:

[0022] Figure 1 is a front view of the electronic weighing system for measuring unevenness of the nozzle of the preferred embodiment of the present application;

[0023] Figure 2 is a top view of Figure 1 ;

[0024] Figure 3 is a sectional view of A-A direction of Figure 1 ;

[0025] Figure 4 is a front view of the oil receiving weighing device of Figure 1 ;

[0026] Figure 5 is a top view of Figure 4 ;

[0027] Figure 6 is a left view of Figure 4 ;

[0028] Figure 7 is a top view of the partial structure of the oil receiving weighing unit of Figure 4 ;

[0029] Figure 8 is a left view of the partial structure of the oil receiving weighing unit of Figure 4 .

[0030] LEGEND

[0031] 1, support assembly; 2, funnel oil guiding group; 21, funnel; 22, mounting horizontal plate; 3, funnel driving mechanism; 32, door-shaped frame; 4, oil receiving weighing unit; 41, oil cup; 411, oil receiving cup; 412, shifting rod; 42, mounting member; 421, connecting plate; 422, mounting plate; 424, mounting pin; 43, electronic scale; 5, oil pouring driving mechanism; 51, pulling plate; 6, oil receiving groove; 7, supporting plate. DETAILED DESCRIPTION

[0032] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, but the present application can be implemented in various different ways as defined and covered by the following.

[0033] With reference to Figures 1-3 The preferred embodiment of the present application provides an electronic weighing system for measuring nozzle unevenness, comprising: two sets of support assemblies 1 arranged in relative spacing, and a funnel oil guiding device and an oil receiving weighing device connected between the two sets of support assemblies 1, and the oil receiving weighing device is located below the funnel oil guiding device. The funnel oil guiding device comprises a funnel oil guiding group 2 arranged transversely between the two sets of support assemblies 1, and the funnel oil guiding group 2 comprises a plurality of funnels 21 arranged in sequence along the length direction thereof, and the plurality of funnels 21 are arranged one-to-one corresponding to a plurality of sector plates in a nozzle unevenness measuring device, so as to collect the lubricating oil discharged by the corresponding sector plates and guide downward. The oil receiving weighing device comprises a plurality of oil receiving weighing units 4 arranged one-to-one corresponding to the plurality of funnels 21, and each of the oil receiving weighing units 4 comprises an oil cup 41 for receiving the lubricating oil guided downward by the funnel 21 arranged above, a mounting member 42 for mounting the oil cup 41, and an electronic scale 43 connected to the mounting member 42 for weighing, and through the selection of the material of the oil cup 41 and the structure of the oil cup 41 and the mounting member 42, the weighing range of the electronic scale 43 is not greater than 200g.

[0034] When the electronic weighing system of the present application is used for testing, the funnel oil guiding device is located below the sector plates of the nozzle unevenness measuring device, and the oil receiving weighing device is located below the funnel oil guiding device, and after the funnel oil guiding group 2 receives the lubricating oil for a predetermined time (the oil receiving time is set according to the oil discharge amount of the nozzle), the funnel oil guiding group 2 moves out of the upper part of the oil receiving weighing device, so as to prevent the lubricating oil from continuing to enter the oil cup 41 of the plurality of oil receiving weighing units 4 arranged below through the oil collecting and guiding effect of the funnel 21 in the funnel oil guiding group 2; then the electronic scale 43 of each oil receiving weighing unit 4 separately measures the weight of the oil liquid in the oil cup 41 connected by the mounting member 42, and obtains the corresponding flow value through the weight / time, so as to obtain the unevenness value of the nozzle under the working condition by measuring the weight of the oil liquid in each oil cup 41.

[0035] The electronic weighing system of the present application, through the material selection of the oil cup 41, and the structural arrangement of the oil cup 41 and the mounting member 42, the weighing range of the electronic scale 43 can be not more than 200g, so that the weight of the oil cup 41 can be not more than 50g, compared with the previous large capacity measuring cup, the weight of the oil cup 41 of the present application can be designed to be not more than 50g, which is less than 1 / 20 of the weight of the existing large capacity measuring cup, and the existing electronic scale adopts the explosion-proof electromagnetic valve to discharge oil, the weight of this type of electronic scale is not less than 2kg, so the electronic scale usually adopts 6kg range, so even for the 0.01% precision electronic scale, the existing 6kg range electronic scale also has a measurement error of 0.6g, for the measurement accuracy must reach within 0.5%, the measuring cup needs to receive at least 120g to eliminate the 0.6g error, and for the small flow of only 3.3ml / min (2.57g / min), combined with the uneven problem of the nozzle itself, the oil collected by the 12 measuring cups (the existing 12 sector plates are used, so 12 measuring cups are needed, or other number of sector plates, at this time only the number of measuring cups corresponds to the number of sector plates) is inconsistent, in order to ensure that each measuring cup can eliminate the 0.6g measurement error, at least 50 minutes of oil receiving is needed to ensure that the measurement accuracy of each measuring cup meets the requirements; while in the present application, the weighing range of the electronic scale 43 is not more than 200g, and the weight of the oil cup 41 is not more than 50g, when the accuracy of the electronic scale 43 is 0.01% and the required measurement accuracy is 0.5%, the oil cup 41 only needs to receive an additional 0.4g of lubricating oil, for the oil receiving amount of 3.3ml / min, that is, a few seconds can eliminate the measurement error, the entire oil receiving time of the oil cup 41 is not more than 1.5 minutes, so the electronic weighing system of the present application greatly improves the ratio of oil weight to oil cup 41 weight by reducing the weight of the oil cup 41, so that the inherent error of the electronic scale 43 can be eliminated by prolonging the oil receiving time of the small flow nozzle to increase the oil receiving weight of the oil cup 41, thereby greatly shortening the test time, especially the small flow measurement time, thereby improving the measurement efficiency, and the range of the electronic scale 43 is not more than 200g, thereby effectively improving the accuracy of small flow measurement, especially suitable for small flow nozzle measurement; on the other hand, when the electronic weighing system of the present application is used for weighing measurement, the entire weighing process can be directly observed, so it is easy to maintain and maintain.

[0036] Optionally, as Figures 4-5As shown, the oil cup 41 is made of aluminum or plastic material, and the weight of the oil cup 41 is not more than 50g, and the capacity of the oil cup 41 is 20-40ml. When the electronic scale with 200g scale range is used, and the precision is 0.01%, and the large flow is 133ml / min, the oil cup 41 can be filled with oil in about 10 seconds, and for the small flow of 3.3ml / min, the oil cup 41 can be filled with oil in about 1 minute, so that the oil filling time is greatly shortened, and the measurement efficiency and the precision of small flow measurement are improved.

[0037] Optionally, as shown in Figures 6-8 The mounting member 42 includes a connecting plate 421, two mounting plates 422, two sets of bearings and two mounting pins 424. One side of the connecting plate 421 is fixed with the corresponding electronic scale 43, and the other side of the connecting plate 421 is recessed to form a mounting hole. The two mounting plates 422 are respectively fixed on the two sides of the mounting hole, and the two sets of bearings are respectively arranged in the two mounting plates 422. The two sides of the oil cup 41 are respectively rotatably arranged on the connecting plate 421 by the fixed connection of the two mounting pins 424 and the corresponding bearings. In this optional solution, the structure of the mounting member 42 allows the oil cup 41 to be rotatably arranged on the mounting member 42, so that the oil can be poured after the subsequent measurement is completed. In addition, the overall structure of the mounting member 42 is simple and easy to manufacture, and the total weight of the mounting member 42 and the oil cup 41 is as small as possible, so that the electronic scale 43 can be selected to have a scale range of not more than 200g.

[0038] Optionally, as shown in Figure 3 The oil filling and weighing device further includes an oil pouring driving mechanism 5 connected with the oil cups 41 of the multiple groups of oil filling and weighing units 4 arranged in the transverse direction, so as to drive the multiple groups of oil cups 41 to pour oil at the same time.

[0039] In this optional solution, as shown in Figures 7-8 The oil cup 41 includes an oil receiving cup 411 for receiving oil, and a lever 412 connected to the bottom of the oil receiving cup 411. In combination with Figure 3As shown, the oil pouring driving mechanism 5 includes a pull plate 51 arranged in the transverse direction, first sliders fixed at both ends of the pull plate 51, two first slide rails respectively matched with the two first sliders and fixed on the two groups of support assemblies 1, and two groups of first telescopic cylinders respectively fixed with the two first sliders. A plurality of through holes are formed in the pull plate 51 corresponding to the plurality of oil cups 41, and the lever 412 of the oil cup 41 is arranged in the corresponding through hole, so as to drive the pull plate 51 to longitudinally slide in the telescopic process of the first telescopic cylinder, and then simultaneously pull the plurality of oil cups 41 through the pull plate 51 to rotate the oil cups 41 to a certain angle to pour oil. After the measurement is completed, the two first telescopic cylinders are simultaneously started to drive the connected first sliders to longitudinally slide on the corresponding first slide rails, so as to simultaneously pull the pull plate 51 to longitudinally slide through the two first sliders, and the pull plate 51 pulls the lever 412 at the bottom of the oil cup 41 to rotate and tilt the oil cup 41 to a certain angle to pour out the measured oil. After pouring, the two first telescopic cylinders are synchronously started to return, the lever 412 is vertical, and the opening of the oil cup 41 is upward, so as to be ready for the next oil receiving.

[0040] Compared with the prior art, one electromagnetic valve is arranged at the bottom end of each measuring cup to pour oil by controlling the on-off of the electromagnetic valve. Since each measuring cup is controlled to pour oil by one electromagnetic valve, the consistency of pouring oil of all the measuring cups is poor, and the arrangement of multiple electromagnetic valves also leads to high measurement cost. On the other hand, the weight of the electromagnetic valve is not less than 2 kg, which is relatively heavy, so that the electronic scale at least needs to select a range of 6 kg, which is not suitable for the measurement of small flow nozzles, leading to low measurement accuracy, long measurement time and low efficiency. In addition, the failure rate of the electromagnetic valve is high after use, which easily leads to leakage and oil discharge of the measuring cup, thereby affecting the measurement accuracy of the nozzle. In the present application, the arrangement of the oil pouring driving mechanism 5 can simultaneously pour and discharge oil for the straight-line arranged oil cups 41, the action consistency of the oil cups 41 is good, the whole structure is simple to arrange and low in preparation cost, and the weight of each group of oil receiving and weighing unit can be effectively reduced, so that the electronic scale 43 can select a range of not more than 200 g, thereby being suitable for the measurement of small flow nozzles.

[0041] Optionally, as shown in Figure 4 and Figure 6 , the oil receiving and weighing device further comprises an oil receiving groove 6 for receiving the poured lubricating oil. The oil receiving groove 6 is located on the oil pouring side of the oil cup 41 and is connected to the two groups of support assemblies 1 at both ends after extending in the transverse direction. The oil receiving groove 6 is used to receive and collect the lubricating oil poured by the row of oil cups 41, and to guide the lubricating oil outwards.

[0042] Optionally, as shown in Figure 5As shown, the oil receiving and weighing device further comprises a support plate 7 for installation support, the support plate 7 extends transversely and is detachably connected to the two groups of support assemblies 1 at both ends. A plurality of oil receiving and weighing units 4 are evenly spaced along the length direction of the support plate 7, and one end of the electronic scale 43 of each oil receiving and weighing unit 4 is detachably fixed to the support plate 7, and the other cantilever end of the electronic scale 43 is detachably connected to the installation member 42. In this optional scheme, through the arrangement of the support plate 7, a plurality of oil receiving and weighing units 4 are fixed at the same time to form a modular structure, when different flow nozzles need to be tested, the modular structure can be replaced to adapt to the change, which is convenient to replace, reduces the manufacturing cost of the equipment, and is convenient for the upgrading of the product in the future.

[0043] Preferably, as Figure 2 shown, the number of oil receiving and weighing devices is multiple groups, and the multiple groups of oil receiving and weighing devices are arranged in sequence along the longitudinal direction perpendicular to the transverse direction. The funnel oil guiding device further comprises a funnel driving mechanism 3 connected to the funnel oil guiding group 2, for driving the funnel oil guiding group 2 to slide along the longitudinal direction to guide the oil after receiving the oil by the multiple groups of oil receiving and weighing devices. In actual design, each group of oil receiving and weighing devices adapts to different flow ranges, and the simultaneous arrangement of multiple groups of oil receiving and weighing devices can meet the measurement of all products with a flow of 40-1600 ml / min, so that multiple special test equipment does not need to be arranged, which can effectively reduce the manufacturing cost of the equipment and reduce the investment of the site.

[0044] Optionally, as Figure 1 and Figure 3 shown, the funnel oil guiding group 2 further comprises a transversely arranged installation transverse plate 22, a plurality of installation holes are evenly spaced in the length direction of the installation transverse plate 22, and a plurality of funnels 21 are detachably arranged in the installation holes in sequence, so that different capacity funnels 21 can be replaced to adapt to the measurement requirements of nozzles with different flow; or the installation transverse plate is processed to form the funnels 21 in the length direction. The funnel driving mechanism 3 comprises two second sliding blocks fixed at both ends of the installation transverse plate, two groups of door-shaped frames 32, two second sliding rails respectively matched with the two second sliding blocks and fixed on the two groups of support assemblies 1 at both sides, and two groups of second telescopic cylinders respectively connected with the two groups of door-shaped frames 32. The two groups of door-shaped frames 32 are fixed with the two second sliding blocks, the second telescopic cylinders are bidirectional driving cylinders, and the two ends of the bidirectional driving cylinders are respectively fixed with the two sides of the corresponding door-shaped frames 32. During work, the two second telescopic cylinders are started at the same time to make the same ends of the two cylinders extend outward, thereby driving the two door-shaped frames 32 connected therewith to move to make the corresponding second sliding blocks slide longitudinally on the corresponding second sliding rails, so that the installation transverse plate 22 is pulled to slide along the longitudinal direction by the two second sliding blocks to correspond to the oil receiving and weighing devices at different positions below.

[0045] The present application also relates to a nozzle unevenness measuring device comprising the electronic weighing system for nozzle unevenness measurement according to any one of the above, so that the nozzle unevenness measuring device of the present application no longer needs to prolong the oil receiving time to increase the oil receiving weight of the oil cup for small flow nozzles, thereby eliminating the inherent error of the electronic scale, so that the test time, especially the small flow measurement time, can be greatly shortened, and the measurement efficiency is improved, and the range of the electronic scale is not greater than 200g, so that the precision of the small flow measurement can also be effectively improved, and the present application is particularly suitable for the measurement of small flow nozzles; on the other hand, when the nozzle unevenness measuring device of the present application is used for weighing measurement, the entire weighing process can be directly observed, so that it is easy to maintain and maintain.

[0046] The above only describes the preferred embodiments of the present application and is not used to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electronic weighing system for measuring nozzle unevenness, characterized by, The system comprises: two groups of support assemblies (1) arranged at a relative interval, a funnel oil guiding device and an oil receiving and weighing device connected between the two groups of support assemblies (1), and the oil receiving and weighing device is located below the funnel oil guiding device; the funnel oil guiding device comprises a funnel oil guiding group (2) arranged transversely between the two groups of support assemblies (1), the funnel oil guiding group (2) comprises a plurality of funnels (21) arranged in sequence along the length direction of the funnel oil guiding group (2), and the plurality of funnels (21) are arranged one-to-one corresponding to a plurality of sector plates in the nozzle unevenness measuring equipment to collect the lubricating oil discharged by the corresponding sector plates and guide the lubricating oil downward; the oil receiving and weighing device comprises a plurality of groups of oil receiving and weighing units (4) arranged one-to-one corresponding to the plurality of funnels (21), each group of oil receiving and weighing units (4) comprises an oil cup (41) for receiving the lubricating oil guided by the funnel (21) arranged above, a mounting member (42) for mounting the oil cup (41), and an electronic scale (43) connected to the mounting member (42) for weighing, and the weight range of the electronic scale (43) is not greater than 200g through the selection of the material of the oil cup (41) and the structure of the oil cup (41) and the mounting member (42) in each group of oil receiving and weighing units (4); the mounting member (42) comprises a connecting plate (421), two mounting plates (422), two groups of bearings, and two mounting pins (424), one side of the connecting plate (421) is fixed with the corresponding electronic scale (43), the other side of the connecting plate (421) is concave to form a mounting opening, the two mounting plates (422) are fixed on the two sides of the mounting opening respectively, and the two groups of bearings are arranged in the two mounting plates (422); the two sides of the oil cup (41) are respectively rotatably arranged on the connecting plate (421) by being rotatably arranged in the corresponding side bearing through the fixed connection of one mounting pin (424); the oil receiving and weighing device further comprises an oil pouring driving mechanism (5) connected to the oil cups (41) of the plurality of groups of oil receiving and weighing units (4) arranged transversely to drive the plurality of groups of oil cups (41) to pour oil at the same time; the oil cup (41) comprises an oil receiving cup (411) for receiving oil and a lever (412) connected to the bottom of the oil receiving cup (411); the oil pouring driving mechanism (5) comprises a pull plate (51) arranged in the transverse direction, a first sliding block fixed on both ends of the pull plate (51), two first sliding rails fixed on the two groups of support assemblies (1) on the two sides and matched with the two first sliding blocks respectively, and two groups of first telescopic cylinders fixed with the two first sliding blocks respectively; a plurality of through holes are formed in the pull plate (51) corresponding to the plurality of oil cups (41) and arranged through the plate surface, the lever (412) of the oil cup (41) is arranged in the corresponding through hole to drive the pull plate (51) to slide longitudinally in the telescopic process of the first telescopic cylinder, and then the plurality of oil cups (41) are pulled to rotate at the same time through the pull plate (51) to pour oil.

2. The electronic weighing system for nozzle unevenness measurement according to claim 1, wherein the oil cup (41) is made of aluminum or plastic material, the weight of the oil cup (41) is not greater than 50g, and the capacity of the oil cup (41) is 20-40ml. ​ 3. The electronic weighing system for measuring nozzle unevenness according to claim 1, characterized in that, The oil receiving and weighing device further comprises an oil receiving groove (6) for receiving the poured lubricating oil, the oil receiving groove (6) is located at the oil pouring side of the oil cup (41) and extends transversely and is connected to the two groups of support assemblies (1) at the two ends.

4. The electronic weighing system for measuring nozzle unevenness according to claim 1, characterized in that, The oil receiving and weighing device further comprises a support plate (7) for installation and support, the support plate (7) extends transversely and is detachably connected to the two groups of support assemblies (1) at the two ends. A plurality of oil receiving and weighing units (4) are evenly spaced along the length direction of the support plate (7), and one end of the electronic scale (43) of each oil receiving and weighing unit (4) is detachably fixed to the support plate (7), and the other cantilever end of the electronic scale (43) is detachably connected to the installation member (42).

5. The electronic weighing system for measuring nozzle unevenness according to claim 1, characterized in that, The number of oil receiving and weighing devices is multiple, and the multiple oil receiving and weighing devices are arranged in sequence along the longitudinal direction perpendicular to the transverse direction. The funnel oil guiding device further comprises a funnel driving mechanism (3) connected to the funnel oil guiding group (2) for driving the funnel oil guiding group (2) to slide along the longitudinal direction to guide the oil after receiving the oil by the multiple oil receiving and weighing devices.

6. The electronic weighing system for measuring nozzle unevenness according to claim 5, characterized in that, The funnel oil guiding group (2) further comprises a transversely arranged installation horizontal plate (22), a plurality of installation holes penetrating the plate are evenly spaced along the length direction of the installation horizontal plate, or a plurality of funnels (21) are detachably installed in the installation holes, or the funnels (21) are evenly spaced and formed along the length direction of the installation horizontal plate; The funnel driving mechanism (3) comprises two second sliding blocks fixed at the two ends of the installation horizontal plate, two groups of door-shaped frames (32), two second sliding rails respectively matched with the two second sliding blocks and fixed on the two groups of support assemblies (1) on the two sides, and two groups of second telescopic cylinders respectively connected to the two groups of door-shaped frames (32); The two groups of door-shaped frames (32) are respectively fixed with the two second sliding blocks, the second telescopic cylinders are bidirectional driving cylinders, and the two ends of the bidirectional driving cylinders are respectively fixed with the two sides of the corresponding door-shaped frames (32).

7. A nozzle unevenness measuring apparatus characterized by comprising: The electronic weighing system for measuring nozzle unevenness according to any one of claims 1-6.

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