Weighing and metering device for helium filling system

Abstract

The utility model relates to the technical field of helium filling, and discloses a weighing and metering device for a helium filling system, which comprises a bottom plate, and universal wheels are arranged at the front ends and the rear ends of the left side and the right side of the bottom of the bottom plate. According to the weighing and metering device for the helium filling system, a helium tank is located between the two clamping blocks by moving the device, then a second servo motor is started to clamp and fix the helium tank, then a first servo motor can be started to drive the helium tank to move upwards, a stepping motor is started to enable the helium tank to move to the position above a supporting plate, and then the helium tank is clamped and fixed. Then, the first servo motor can be started to rotate reversely, so that the helium tank is placed on the top of the supporting plate, then, the second servo motor can be started to rotate reversely, so that fixation of the helium tank is relieved, upward carrying operation of the helium tank is automatically completed, otherwise, the helium tank can be carried downwards, manual carrying is not needed, and the working efficiency is improved. Therefore, the labor intensity is reduced, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of helium filling, in particular to a weighing and metering device for a helium filling system. Background Art

[0002] Helium has stable chemical properties and is an inert gas with a wide range of applications. In order to facilitate the transportation and use of helium, helium is usually filled in a steel cylinder. In order to control the amount of helium filled, a weighing and metering device is usually used to measure the weight of the helium tank. However, during the use of the existing weighing and metering device, it is usually necessary to manually move the helium tank up and down. Since the weight of the helium tank is generally heavy, the labor intensity of the operator is high and it is not conducive to use. Therefore, a weighing and metering device for a helium filling system is proposed. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the shortcomings of the prior art, the utility model provides a weighing and metering device for a helium filling system, which has the advantages of being able to automatically carry the helium tank up and down, and solves the problem that the existing weighing and metering devices usually need to be manually carried up and down during use. Since the weight of the helium tank is generally heavy, the labor intensity of the operator is high and it is not conducive to use.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose of automatically transporting helium tanks up and down, the utility model provides the following technical solutions: a weighing and metering device for a helium filling system, comprising a bottom plate, the front and rear ends of the left and right sides of the bottom of the bottom plate are provided with universal wheels, two installation frames symmetrically distributed on the top left of the bottom plate are provided, the two installation frames are provided with support blocks with one end extending to the top thereof, and the top of the bottom plate is provided with two weighing sensors respectively located in the two installation frames and one end of which is respectively attached to the bottom of the two support blocks. The top of the left support block is provided with a support plate with one end fixedly connected to the top of the right support block, the bottom of the bottom plate is provided with a battery located between the left and right universal wheels, the top of the bottom plate is provided with a U-shaped plate located on the right side of the right mounting frame, the top of the U-shaped plate is provided with a mounting shaft with one end extending into the interior and movably connected to the top of the bottom plate, the top of the mounting shaft is provided with a mounting block, the top left side of the U-shaped plate is provided with a first driving component with one end extending into the interior and fixedly connected to the outer side of the mounting shaft, the right side of the mounting block is provided with a slide groove, A first servo motor is arranged on the top of the mounting block, the output shaft of the first servo motor extends to the interior of the slide slot and is provided with a first threaded rod with one end movably connected to the bottom wall of the slide slot, a slider with one end threadedly connected to the outside of the first threaded rod and extending to the right side of the mounting block is arranged inside the slide slot, connecting blocks are arranged at both front and rear ends of the top of the right side of the slider, and support rods with one end fixedly connected to the right side of the slider are arranged at the bottom right sides of the two connecting blocks, a U-shaped block with one end fixedly connected to the right side of the rear connecting block is arranged on the right side of the front connecting block, a second threaded rod is arranged between the front and rear sides of the inner wall of the U-shaped block, a limiting rod located on the right side of the second threaded rod is arranged between the front and rear sides of the inner wall of the U-shaped block, a moving block with one end movably connected to the left side of the inner wall of the U-shaped block and the other end movably connected to the outside of the limiting rod is arranged at both front and rear ends of the outer side of the second threaded rod, a clamping block located on the right side of the limiting rod is arranged on the opposite sides of the two moving blocks, and an anti-slip pad is arranged on the opposite sides of the two clamping blocks, and a second driving assembly with one end extending into the interior and fixedly connected to the outside of the second threaded rod is arranged on the left side of the U-shaped block.

[0007] Preferably, the first driving assembly includes a stepper motor, the top of the U-shaped plate is fixedly mounted with a stepper motor located on the left side of the mounting shaft, the output shaft of the stepper motor extends to the interior of the U-shaped plate and is fixedly mounted with a driving gear, and the outer side of the mounting shaft is fixedly mounted with a driven gear located inside the U-shaped plate and meshing with the driving gear at one end.

[0008] Preferably, the second drive assembly includes a second servo motor, and the left side of the U-shaped block is fixedly installed with a second servo motor located between the two connecting blocks, the output shaft of the second servo motor extends to the interior of the U-shaped block and is fixedly installed with a driving bevel gear, and the outer side of the second threaded rod is fixedly installed with a driven bevel gear located between the two moving blocks and one end of which is meshed with the driving bevel gear.

[0009] Preferably, a mounting hole matched with the mounting shaft is opened on the top of the U-shaped plate, a first bearing located inside the U-shaped plate is fixedly mounted on the top of the base plate, and the mounting shaft is rotatably connected to the top of the base plate through the first bearing.

[0010] Preferably, a second bearing is fixedly mounted on the inner bottom wall of the slide groove, and the first threaded rod is rotatably connected to the inner bottom wall of the slide groove via the second bearing.

[0011] Preferably, third bearings are fixedly installed on both the front and rear sides of the inner wall of the U-shaped block, the second threaded rod is rotatably connected to the inner wall of the U-shaped block through the third bearing, and the outer side of the second threaded rod is provided with two sections of thread, and the two sections of thread are equal in length and opposite in direction.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a weighing and metering device for a helium filling system, which has the following beneficial effects:

[0014] The helium filling system uses a weighing and metering device, which is moved to position the helium tank to be filled between the two clamping blocks, and then the second servo motor is started to drive the driving bevel gear to rotate, and then the second threaded rod is driven to rotate through the driven bevel gear. During the rotation of the second threaded rod, the two moving blocks and the two clamping blocks are driven to move relative to each other to clamp and fix the helium tank. Then the first servo motor is started to drive the first threaded rod to rotate, thereby driving the slider and the helium tank to move upward as a whole, and then the stepper motor is started to drive the driving gear to rotate, and then the driven gear is used to drive the mounting shaft, the mounting block and the helium tank to rotate 180 degrees as a whole. The first servo motor can be started to rotate in the opposite direction, thereby driving the first threaded rod to rotate in the opposite direction, thereby driving the slider and the helium tank to move downward as a whole, until the bottom of the helium tank fits the top of the support plate, and then the second servo motor can be started to rotate in the opposite direction, thereby driving the second threaded rod to rotate in the opposite direction, thereby driving the two moving blocks and the two clamping blocks to move away from each other, so as to release the fixation of the helium tank, thereby automatically completing the upward transportation operation of the helium tank, and vice versa, it can be transported downward, without manual transportation of the helium tank, thereby reducing labor intensity and facilitating the use of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a partial schematic diagram of a top view and section of a U-shaped block of the utility model.

[0017] In the figure: 1 bottom plate, 2 universal wheel, 3 mounting frame, 4 support block, 5 weighing sensor, 6 support plate, 7 battery, 8 U-type plate, 9 mounting shaft, 10 mounting block, 11 first drive assembly, 111 stepper motor, 112 drive gear, 113 driven gear, 12 slide, 13 first servo motor, 14 first threaded rod, 15 slider, 16 connecting block, 17 support rod, 18 U-type block, 19 second threaded rod, 20 limit rod, 21 moving block, 22 clamping block, 23 anti-slip pad, 24 second drive assembly, 241 second servo motor, 242 drive bevel gear, 243 driven bevel gear. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2 The utility model provides a technical solution: a weighing and metering device for a helium filling system, comprising a bottom plate 1, universal wheels 2 are fixedly installed at the front and rear ends of the left and right sides of the bottom of the bottom plate 1, two installation frames 3 symmetrically distributed on the left and right sides are fixedly installed on the top left side of the bottom plate 1, and support blocks 4 with one end extending to the top of the two installation frames 3 are movably installed inside the two installation frames 3, and two weighing sensors 5 are fixedly installed on the top of the bottom plate 1, which are respectively located inside the two installation frames 3 and one end of which is respectively attached to the bottom of the two support blocks 4, and the model of the weighing sensor 5 can be FYMH-P, a support plate 6 with one end fixedly connected to the top of the right support block 4 is fixedly installed on the top of the left support block 4, and a battery 7 located between the universal wheels 2 on the left and right sides is fixedly installed on the bottom of the bottom plate 1.

[0020] A U-shaped plate 8 located on the right side of the right mounting frame 3 is fixedly installed on the top of the base plate 1. A mounting shaft 9 with one end extending into the interior of the U-shaped plate 8 and movably connected to the top of the base plate 1 is movably installed on the top. A mounting hole matching the mounting shaft 9 is opened on the top of the U-shaped plate 8. A first bearing located inside the U-shaped plate 8 is fixedly installed on the top of the base plate 1. The mounting shaft 9 is rotatably connected to the top of the base plate 1 through the first bearing, and a mounting block 10 is fixedly installed on the top of the mounting shaft 9.

[0021] A first drive component 11 is fixedly installed on the left side of the top of the U-shaped plate 8, with one end extending into the interior thereof and fixedly connected to the outer side of the mounting shaft 9. The first drive component 11 includes a stepper motor 111. The top of the U-shaped plate 8 is fixedly installed with a stepper motor 111 located on the left side of the mounting shaft 9. The model of the stepper motor 111 may be TDA101-5. The output shaft of the stepper motor 111 extends into the interior of the U-shaped plate 8 and is fixedly installed with a driving gear 112. A driven gear 113 is fixedly installed on the outer side of the mounting shaft 9, which is located inside the U-shaped plate 8 and meshes with the driving gear 112 at one end.

[0022] A slide groove 12 is provided on the right side of the mounting block 10, and a first servo motor 13 is fixedly installed on the top of the mounting block 10. The model of the first servo motor 13 may be MR-J2S-10A. The output shaft of the first servo motor 13 extends into the interior of the slide groove 12 and is fixedly installed with a first threaded rod 14 having one end movably connected to the inner bottom wall of the slide groove 12. A second bearing is fixedly installed on the inner bottom wall of the slide groove 12. The first threaded rod 14 is rotatably connected to the inner bottom wall of the slide groove 12 through the second bearing. A slider 15 is movably installed inside the slide groove 12, which is threadedly connected to the outer side of the first threaded rod 14 and has one end extending to the right side of the mounting block 10. A first threaded hole matching the first threaded rod 14 is provided inside the slider 15. Connecting blocks 16 are fixedly installed at the front and rear ends of the top right side of the slider 15, and support rods 17 having one end fixedly connected to the right side of the slider 15 are fixedly installed on the bottom right sides of the two connecting blocks 16.

[0023] A U-shaped block 18 having one end fixedly connected to the right side of the rear connecting block 16 is fixedly installed on the right side of the front connecting block 16, a second threaded rod 19 is movably installed between the front and rear sides of the inner wall of the U-shaped block 18, and a third bearing is fixedly installed on the front and rear sides of the inner wall of the U-shaped block 18, the second threaded rod 19 is rotatably connected to the inner wall of the U-shaped block 18 through the third bearing, the outer side of the second threaded rod 19 is provided with two sections of threads, and the two sections of threads are equal in length and opposite in direction, a limiting rod 20 located on the right side of the second threaded rod 19 is fixedly installed between the front and rear sides of the inner wall of the U-shaped block 18, the front and rear ends of the outer side of the second threaded rod 19 are both threadedly connected to a moving block 21 having one end movably connected to the left side of the inner wall of the U-shaped block 18 and the other end movably connected to the outer side of the limiting rod 20, the interiors of the two moving blocks 21 are provided with second threaded holes adapted to the second threaded rod 19, the opposite sides of the two moving blocks 21 are fixedly installed with a clamping block 22 located on the right side of the limiting rod 20, and the opposite sides of the two clamping blocks 22 are fixedly installed with an anti-slip pad 23.

[0024] A second drive assembly 24 having one end extending into the interior of the U-shaped block 18 and fixedly connected to the outer side of the second threaded rod 19 is fixedly installed on the left side of the U-shaped block 18. The second drive assembly 24 includes a second servo motor 241. A second servo motor 241 located between the two connecting blocks 16 is fixedly installed on the left side of the U-shaped block 18. The model of the second servo motor 241 may be I HSS57-36-20. The output shaft of the second servo motor 241 extends into the interior of the U-shaped block 18 and is fixedly installed with a driving bevel gear 242. A driven bevel gear 243 located between the two moving blocks 21 and meshing with the driving bevel gear 242 at one end is fixedly installed on the outer side of the second threaded rod 19.

[0025] When in use, the device is moved so that the helium tank to be filled is located between the two clamping blocks 22, and then the second servo motor 241 is started by an external controller to drive the driving bevel gear 242 to rotate, and then the second threaded rod 19 is driven to rotate through the driven bevel gear 243. During the rotation of the second threaded rod 19, the two moving blocks 21 and the two clamping blocks 22 are driven to move relative to each other to clamp and fix the helium tank. Then, the first servo motor 13 is started to drive the first threaded rod 14 to rotate, thereby driving the slider 15 The helium tank moves upward as a whole, and then the stepper motor 111 is started to drive the driving gear 112 to rotate, and then the driven gear 113 is used to drive the mounting shaft 9, the mounting block 10 and the helium tank to rotate 180 degrees as a whole, so that the helium tank moves to the top of the support plate 6. At this time, the first servo motor 13 can be started to rotate in the opposite direction, so as to drive the first threaded rod 14 to rotate in the opposite direction, thereby driving the slider 15 and the helium tank to move downward as a whole, until the bottom of the helium tank fits the top of the support plate 6, and then the second servo motor can be started. The second servo motor 241 is driven to rotate in the opposite direction, thereby driving the second threaded rod 19 to rotate in the opposite direction, thereby driving the two moving blocks 21 and the two clamping blocks 22 to move in opposite directions, thereby releasing the fixation of the helium tank, thereby automatically completing the upward transportation operation of the helium tank. At this time, the helium tank can be filled, and the added weight can be measured in real time by the weighing sensor 5, so as to control the amount of filled helium. After the filling is completed, the second servo motor 241 can be started to drive the two clamping blocks 22 to move relative to each other, clamp the helium tank again, and then start The first servo motor 13 drives the helium tank to move upward, and then the stepper motor 111 is started to drive the mounting shaft 9, the mounting block 10 and the helium tank to rotate 180 degrees again as a whole. Then the first servo motor 13 is started to rotate in the opposite direction to drive the slider 15 and the helium tank to move downward as a whole. Finally, the second servo motor 241 is started to rotate in the opposite direction to release the fixation of the helium tank, thereby automatically completing the downward transportation operation of the helium tank, without the need for manual transportation of the helium tank up and down, thereby reducing labor intensity and facilitating the use of the user.

[0026] In summary, the helium filling system uses a weighing and metering device, which is moved to position the helium tank to be filled between the two clamping blocks 22, and then the second servo motor 241 is started to drive the driving bevel gear 242 to rotate, and then the second threaded rod 19 is driven to rotate through the driven bevel gear 243, and the second threaded rod 19 will drive the two moving blocks 21 and the two clamping blocks 22 to move relative to each other during the rotation process, so as to clamp and fix the helium tank, and then the first servo motor 13 can be started to drive the first threaded rod 14 to rotate, so as to drive the slider 15 and the helium tank to move upward as a whole, and then the stepping motor 111 is started to drive the driving gear 112 to rotate, and then the driven gear 113 is used to drive the mounting shaft 9, the mounting block 10 and the helium tank to rotate 180 degrees as a whole, so that the helium tank is moved to the top of the support plate 6, and then the helium tank can be moved to the top of the support plate 6. The first servo motor 13 is started to rotate in the opposite direction, thereby driving the first threaded rod 14 to rotate in the opposite direction, thereby driving the slider 15 and the helium tank to move downward as a whole until the bottom of the helium tank is in contact with the top of the support plate 6, and then the second servo motor 241 is started to rotate in the opposite direction, thereby driving the second threaded rod 19 to rotate in the opposite direction, thereby driving the two moving blocks 21 and the two clamping blocks 22 to move away from each other, so as to release the fixation of the helium tank, thereby automatically completing the upward transportation operation of the helium tank, and vice versa, it can be transported downward, without manual transportation of the helium tank, thereby reducing labor intensity, facilitating the use of users, and solving the problem that the existing weighing and metering device usually needs manual transportation of the helium tank up and down during use, and the weight of the helium tank is generally heavy, resulting in high labor intensity for operators, which is not conducive to use.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weighing and metering device for a helium filling system, comprising a base plate (1), wherein universal wheels (2) are arranged at both the front and rear ends of the left and right sides of the bottom of the base plate (1), two installation frames (3) are arranged on the left side of the top of the base plate (1) and are symmetrically distributed on the left and right sides, and each of the two installation frames (3) is provided with a support block (4) with one end extending to the top thereof, and the top of the base plate (1) is provided with two weighing sensors (5) which are respectively located in the two installation frames (3) and one end of which is respectively attached to the bottom of the two support blocks (4), and the top of the left support block (4) is provided with a support plate (6) with one end fixedly connected to the top of the right support block (4), and the bottom of the base plate (1) is provided with a battery (7) located between the universal wheels (2) on the left and right sides, characterized in that: A U-shaped plate (8) is arranged on the top of the bottom plate (1) and is located on the right side of the right side mounting frame (3); a mounting shaft (9) is arranged on the top of the U-shaped plate (8) and has one end extending into the inside thereof and movably connected to the top of the bottom plate (1); a mounting block (10) is arranged on the top of the mounting shaft (9); a first driving component (11) is arranged on the left side of the top of the U-shaped plate (8) and has one end extending into the inside thereof and fixedly connected to the outside of the mounting shaft (9); a slide groove (12) is arranged on the right side of the mounting block (10); A first servo motor (13) is arranged on the top of the mounting block (10), the output shaft of the first servo motor (13) extends into the interior of the slide slot (12) and is provided with a first threaded rod (14) having one end movably connected to the inner bottom wall of the slide slot (12), a slider (15) is arranged inside the slide slot (12) and is threadedly connected to the outer side of the first threaded rod (14) and having one end extending to the right side of the mounting block (10), and connecting blocks (16) are arranged at both the front and rear ends of the top right side of the slider (15), and the two sliders (15) are connected to each other. A support rod (17) having one end fixedly connected to the right side of the slider (15) is provided on the right side of the bottom of the connection block (16); a U-shaped block (18) having one end fixedly connected to the right side of the rear connection block (16) is provided on the right side of the front connection block (16); a second threaded rod (19) is provided between the front and rear sides of the inner wall of the U-shaped block (18); a limiting rod (20) is provided between the front and rear sides of the inner wall of the U-shaped block (18) and is located on the right side of the second threaded rod (19); and the outer surface of the second threaded rod (19) is provided with a plurality of threaded rods (20). A moving block (21) is provided at both the front and rear ends of the side, one end of which is movably connected to the left side of the inner wall of the U-shaped block (18) and the other end of which is movably connected to the outer side of the limiting rod (20); a clamping block (22) located on the right side of the limiting rod (20) is provided on the opposite sides of the two moving blocks (21); an anti-slip pad (23) is provided on the opposite sides of the two clamping blocks (22); and a second driving component (24) is provided on the left side of the U-shaped block (18) with one end extending into the interior thereof and fixedly connected to the outer side of the second threaded rod (19).

2. A weighing and metering device for a helium filling system according to claim 1, characterized in that: The first driving assembly (11) comprises a stepper motor (111); the stepper motor (111) is fixedly mounted on the top of the U-shaped plate (8) and is located on the left side of the mounting shaft (9); the output shaft of the stepper motor (111) extends into the interior of the U-shaped plate (8) and is fixedly mounted with a driving gear (112); and a driven gear (113) is fixedly mounted on the outer side of the mounting shaft (9) and is located inside the U-shaped plate (8) and has one end meshing with the driving gear (112).

3. A weighing and metering device for a helium filling system according to claim 1, characterized in that: The second driving assembly (24) comprises a second servo motor (241), the second servo motor (241) being fixedly mounted on the left side of the U-shaped block (18) and being located between the two connecting blocks (16), the output shaft of the second servo motor (241) extending into the interior of the U-shaped block (18) and being fixedly mounted with a driving bevel gear (242), and the outer side of the second threaded rod (19) being fixedly mounted with a driven bevel gear (243) being located between the two moving blocks (21) and having one end meshing with the driving bevel gear (242).

4. A weighing and metering device for a helium filling system according to claim 1, characterized in that: The top of the U-shaped plate (8) is provided with a mounting hole matched with the mounting shaft (9); the top of the base plate (1) is fixedly provided with a first bearing located inside the U-shaped plate (8); and the mounting shaft (9) is rotatably connected to the top of the base plate (1) via the first bearing.

5. The weighing and metering device for a helium filling system according to claim 1, characterized in that: A second bearing is fixedly mounted on the inner bottom wall of the slide groove (12), and the first threaded rod (14) is rotatably connected to the inner bottom wall of the slide groove (12) via the second bearing.

6. A weighing and metering device for a helium filling system according to claim 1, characterized in that: The inner wall of the U-shaped block (18) is fixedly mounted with third bearings on both the front and rear sides. The second threaded rod (19) is rotatably connected to the inner wall of the U-shaped block (18) via the third bearing. The outer side of the second threaded rod (19) is provided with two sections of threads, and the two sections of threads are equal in length and opposite in direction.

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