Gas cylinder flattening test device

Abstract

The present invention belongs to the technical field of gas cylinder testing, and specifically relates to a gas cylinder flattening test device, comprising a test frame and a lifting mechanism installed on the test frame, wherein a hydraulic cylinder is installed on the test frame, a connecting plate is fixedly installed on the movable end of the hydraulic cylinder, a lower pressing plate is provided on the connecting plate, a supporting plate is provided below the lower pressing plate, the lifting mechanism is installed below the supporting plate, the supporting plate is fixedly connected to the movable end of the lifting mechanism, and a transmission mechanism for transmitting the gas cylinders to the lower side of the lower pressing plate is symmetrically provided on both sides of the supporting plate. The purpose is to place the gas cylinders at equal intervals above the transmission mechanism through the cooperation of the lower pressing plate, the supporting plate, the lifting mechanism and the transmission mechanism, and to transmit the gas cylinders one by one between the lower pressing plate and the supporting plate by using the transmission mechanism, so that the supporting plate rises and the lower pressing plate falls, and the flattening test is completed on the gas cylinders. The loading and unloading and the test are carried out synchronously, and the test efficiency is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of gas cylinder testing, and in particular relates to a gas cylinder flattening test device. Background Art

[0002] Gas cylinders are widely used to fill high-pressure air, oxygen, nitrogen, argon, carbon dioxide, and store compressed natural gas in automotive power systems. To ensure safe use, the quality of the cylinders needs to be tested, and the flattening test is one of the important tests.

[0003] The flattening test often uses a hydraulic press to perform a downward pressure test. The gas cylinder is fixed using a tooling, and the hydraulic press drives the upper pressure plate to squeeze the gas cylinder. During the downward pressure process, the yield deformation is recorded using a force sensor and a displacement sensor to achieve the purpose of the flattening test. Finally, the gas cylinder that has completed the test is removed from the tooling and waits for the next test.

[0004] However, multiple sets of data are often required when conducting a flattening test. When multiple gas cylinders are tested, the test and disassembly and assembly cannot be carried out simultaneously, resulting in low test efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a gas cylinder flattening test device, in which the gas cylinders are placed above the transmission mechanism at equal intervals through the cooperation of the lower pressure plate, the supporting plate, the lifting mechanism and the transmission mechanism, and the gas cylinders are transmitted one by one between the lower pressure plate and the supporting plate by the transmission mechanism. The supporting plate rises and the lower pressure plate falls to complete the flattening test on the gas cylinders. The loading and unloading and the test are carried out synchronously, and the test efficiency is higher.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows:

[0007] A gas cylinder flattening test device includes a test frame and a lifting mechanism installed on the test frame, a hydraulic cylinder is installed on the test frame, a connecting plate is fixedly installed on the movable end of the hydraulic cylinder, a lower pressure plate is provided on the connecting plate, a supporting plate is provided below the lower pressure plate, the lifting mechanism is installed below the supporting plate, the supporting plate is fixedly connected to the movable end of the lifting mechanism, and transmission mechanisms for transmitting gas cylinders to the bottom of the lower pressure plate are symmetrically provided on both sides of the supporting plate.

[0008] It is further defined that the transmission mechanism includes a support frame and a lifting frame, a driving motor is installed on the support frame, and multiple rocking arms are symmetrically arranged on both sides of the support frame. The output shaft of the driving motor is transmission-connected to one of the rocking arms, and the two sides of the lifting frame are rotationally connected to the multiple rocking arms. A transmission plate is installed above the support frame, and multiple placement slots are evenly spaced at the top of the lifting frame and the transmission plate. With such a structural design, the placement slot is used to limit the position of the gas cylinder. Since multiple rocking arms are rotatably connected to the lifting frame, the rocking arm is always parallel to the transmission plate during movement. The rocking arm rotates clockwise. At the starting position, the rocking arm and the lifting frame are parallel to the transmission plate. After the rocking arm is lifted upward, the lifting frame lifts the gas cylinder on the transmission plate, and the gas cylinder is separated from the transmission plate. When the rocking arm rotates 180°, the lifting frame moves the gas cylinder along the transmission direction to the next placement slot on the transmission plate, and the rocking arm continues to rotate 180° to return to the starting position. In the process of returning to the starting position, the hydraulic cylinder starts to complete the pressure test, and the transmission and downward pressure tests of the gas cylinder are carried out alternately.

[0009] It is further defined that the placement groove is a V-shaped groove. Such a structural design utilizes the V-shaped groove to limit the position of the gas cylinder and can adapt to gas cylinders of various sizes.

[0010] Furthermore, the transmission mechanism further comprises a plurality of transmission shafts, each end of which is fixedly connected to two first rotating rods located on the same axis. This structural design connects the first rotating rods on both sides via the transmission shaft, making the lifting frame move more smoothly and less likely to tilt left or right.

[0011] It is further defined that an electromagnet is installed in the placement slot, and a sensing unit is installed on the support frame. The sensing unit controls the activation and deactivation of the electromagnet according to the position of the lifting frame. This structural design allows the gas cylinder on the lifting frame to be adsorbed by the electromagnet, preventing the gas cylinder from detaching from the lifting frame during movement. The sensing unit uses an infrared sensor, which is positioned higher than the transmission plate. When the lifting frame contacts the gas cylinder, the lifting frame is higher than the transmission plate and triggers the infrared sensor, activating the electromagnet. The lifting frame places the gas cylinder in front of the transmission plate. The lifting frame triggers the infrared sensor again, deactivating the electromagnet, making it difficult for the gas cylinder to detach during transfer.

[0012] The invention further defines that the rocking arm includes a first rotating rod and a rocking arm, a positioning seat is provided on the support frame, the first rotating rod is rotatably connected to the positioning seat, the output shaft of the drive motor is transmission-connected to the first rotating rod, the rocking arm is fixedly connected to the free end of the first rotating rod, a second rotating rod is rotatably mounted on the rocking arm, and the second rotating rod is rotatably connected to the lifting frame. With this structural design, the drive motor drives the first rotating rod to rotate, the first rotating rod drives the rocking arm to perform circular motion, and the rocking arm drives the lifting frame to perform circular motion, thereby completing the transmission of the gas cylinder.

[0013] It is further defined that the lifting mechanism includes a limit seat, a lifting plate and two lifting rods, the limit seat is installed below the carrying plate, and a first limit groove is vertically opened on both sides of the limit seat, the limit seat is vertically opened at the bottom of the carrying plate, and the limit seat is opened with a second limit groove, and the third limit groove is connected with the second limit groove and the first limit groove respectively, the lifting rod is fixedly installed below the connecting plate and slidably installed inside the first limit groove, the lifting plate is slidably installed inside the second limit groove and fixedly connected to the carrying plate, and two transmission plates are slidably installed in the third limit groove, the transmission plate is located between the lifting rod and the lifting plate, and the contact surfaces of the transmission plate with the lifting rod and the lifting plate are all inclined surfaces. With this structural design, the hydraulic cylinder drives the connecting plate to move, the lifting rod moves along the first limit groove, the lifting rod pushes the transmission plate, the transmission plates on both sides approach each other, and the lifting plate rises along the second limit groove, so that the load-bearing plate lifts the gas cylinder on the transmission plate, the gas cylinder detaches from the transmission plate, the hydraulic cylinder continues to move, and the lower pressure plate squeezes the gas cylinder to complete the flattening test.

[0014] Furthermore, the support plate is a V-shaped plate. Such a structural design allows the gas cylinder to be positioned by the V-shaped plate, thereby preventing the gas cylinder from being separated from the support plate during the flattening test.

[0015] The invention adopting the above technical solution has the following advantages:

[0016] 1. Through the cooperation of the lower pressure plate, the load-bearing plate, the lifting mechanism and the transmission mechanism, the gas cylinders are placed on the top of the transmission mechanism at equal intervals. The transmission mechanism is used to transfer the gas cylinders one by one to between the lower pressure plate and the load-bearing plate. The load-bearing plate rises and the lower pressure plate falls to complete the flattening test on the gas cylinders. The loading and unloading and the test are carried out simultaneously, which makes the test more efficient.

[0017] 2. The driving motor drives multiple rocking arms to rotate. Since the multiple rocking arms are rotatably connected to the lifting frame, the rocking arms are always parallel to the transmission plate during the movement. The rocking arms rotate clockwise. At the starting position, the rocking arms and the lifting frame are parallel to the transmission plate. After the rocking arms are lifted upward, the lifting frame lifts the gas cylinders on the transmission plate, and the gas cylinders are separated from the transmission plate. When the rocking arms rotate 180°, the lifting frame moves the gas cylinders along the transmission direction to the next position of the transmission plate, and the rocking arms continue to rotate 180° to return to the starting position. In the process of returning to the starting position, the hydraulic cylinder starts to complete the pressure test, and the transmission and downward pressure tests of the gas cylinders are performed alternately. The driving motor can operate continuously without repeated start and stop. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0019] Figure 1This is a structural schematic diagram of an embodiment of a gas cylinder flattening test device of the present invention;

[0020] Figure 2 This is a schematic structural diagram of a gas cylinder flattening test device according to an embodiment of the present invention after loading gas cylinders;

[0021] Figure 3 This is a schematic diagram of the structure of the transmission mechanism part of an embodiment of a gas cylinder flattening test device of the present invention. Figure 1 ;

[0022] Figure 4 This is a cross-sectional view of the transmission mechanism portion of an embodiment of a gas cylinder flattening test device of the present invention. Figure 2 ;

[0023] Figure 5 This is a schematic diagram of the overall structure of a transmission mechanism in an embodiment of a gas cylinder flattening test device of the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of a limit seat in an embodiment of a gas cylinder flattening test device of the present invention;

[0025] Figure 7 This is a cross-sectional view of the initial state of the lifting mechanism in an embodiment of a gas cylinder flattening test device of the present invention;

[0026] Figure 8 This is a cross-sectional view of a gas cylinder flattening test device embodiment of the present invention in a state where the lifting mechanism is pressed downward;

[0027] The main component symbols are described as follows:

[0028] Test frame 11, hydraulic cylinder 12, connecting plate 13, lower pressure plate 14,

[0029] The supporting plate 21, the limiting seat 22, the first limiting groove 221, the second limiting groove 222, the third limiting groove 223, the lifting plate 23, the lifting rod 24, the transmission plate 25,

[0030] Transmission mechanism 3, support frame 31, drive motor 32, rocking arm 33, positioning seat 331, first rotating rod 332, rocking arm 333, second rotating rod 334, lifting frame 34, transmission plate 35, transmission shaft 36, electromagnet 37, induction unit 38, chain 39. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that in the drawings or descriptions, similar or identical parts are numbered the same. Implementations not shown or described in the drawings are forms known to those of ordinary skill in the art. In addition, directional terms mentioned in the embodiments, such as "upper," "lower," "top," "bottom," "left," "right," "front," and "back," are merely references to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0032] like Figure 1 and 2 As shown, a gas cylinder flattening test device of the present invention includes a test frame 11 and a lifting mechanism installed on the test frame, a hydraulic cylinder 12 is installed on the test frame 11, a connecting plate 13 is fixedly installed on the movable end of the hydraulic cylinder 12, a lower pressure plate 14 is provided on the connecting plate 13, a supporting plate 21 is provided below the lower pressure plate 14, the lifting mechanism is installed below the supporting plate 21, the supporting plate 21 is fixedly connected to the movable end of the lifting mechanism, and a transmission mechanism 3 for transmitting the gas cylinder to the bottom of the lower pressure plate 14 is symmetrically provided on both sides of the supporting plate 21.

[0033] like Figures 3 to 5 As shown, the transmission mechanism 3 includes a support frame 31 and a lifting frame 34. A drive motor 32 is mounted on the support frame 31. A plurality of rocking arms 33 are symmetrically arranged on both sides of the support frame 31. The output shaft of the drive motor 32 is transmission-connected to one of the rocking arms 33. Both sides of the lifting frame 34 are rotationally connected to the plurality of rocking arms 33. A transmission plate 35 is mounted above the support frame 31. A plurality of placement slots are evenly spaced at the tops of the lifting frame 34 and the transmission plate 35. A sprocket is provided on the side of the rocking arm 33 close to the drive motor 32. A chain 39 is wound between the sprockets on the same side. The chain 39 enables the plurality of rocking arms 33 to rotate synchronously, making the operation more stable. The driving motor 32 drives multiple rocking arms 33 to rotate. Since multiple rocking arms 33 are rotatably connected to the lifting frame 34, the rocking arms 33 are always parallel to the transmission plate 35 during the movement. The rocking arms 33 rotate clockwise. At the starting position, the rocking arms 33 and the lifting frame 34 are both parallel to the transmission plate 35. After the rocking arms 33 are lifted upward, the lifting frame 34 lifts the gas cylinders on the transmission plate 35, and the gas cylinders are separated from the transmission plate 35. When the rocking arms 33 rotate 180°, the lifting frame 34 moves the gas cylinders along the transmission direction to the next placement slot on the transmission plate 35, and the rocking arms 33 continue to rotate 180° to return to the starting position. In the process of returning to the starting position, the hydraulic cylinder 12 starts to complete the pressure test, and the transmission and downward pressure tests of the gas cylinders are performed alternately.

[0034] The placement groove adopts a V-shaped groove. The V-shaped groove is used to limit the position of the gas cylinder and can adapt to gas cylinders of various sizes.

[0035] The rocking arm 33 includes a first rotating rod 332 and a rocking arm 333. A positioning seat 331 is provided on the support frame 31. The first rotating rod 332 is rotatably connected to the positioning seat 331. The output shaft of the drive motor 32 is in transmission connection with the first rotating rod 332. The rocking arm 333 is fixedly connected to the free end of the first rotating rod 332. A second rotating rod 334 is rotatably mounted on the rocking arm 333, and the second rotating rod 334 is rotatably connected to the lifting frame 34. The drive motor 32 drives the first rotating rod 332 to rotate, the first rotating rod 332 drives the rocking arm 333 to perform circular motion, and the rocking arm 333 drives the lifting frame 34 to perform circular motion.

[0036] The transmission mechanism 3 also includes multiple transmission shafts 36, each of which is fixedly connected to two first rotating rods 332 located on the same axis. Connecting the first rotating rods 332 on both sides through the transmission shafts 36 makes the lifting frame 34 move more smoothly and is less likely to tilt left or right.

[0037] An electromagnet 37 is installed in the placement slot, and a sensing unit 38 is installed on the support frame 31. The sensing unit 38 controls the activation and deactivation of the electromagnet 37 according to the position of the lifting frame 34. The electromagnet 37 attracts the gas cylinder on the lifting frame 34 to prevent it from detaching from the lifting frame 34 during movement. The sensing unit 38 uses an infrared sensor, which is positioned higher than the transmission plate 35. When the lifting frame 34 contacts the gas cylinder, it rises above the transmission plate 35 and triggers the infrared sensor, activating the electromagnet 37. The lifting frame 34 then places the gas cylinder in front of the transmission plate 35. The lifting frame 34 triggers the infrared sensor again, deactivating the electromagnet 37, preventing the gas cylinder from detaching during transfer.

[0038] like Figures 6 to 8As shown, the lifting mechanism includes a limit seat 22, a lifting plate 23 and two lifting rods 24. The limit seat 22 is installed below the supporting plate 21. A first limit slot 221 is vertically opened on both sides of the limit seat 22. The limit seat 22 is vertically opened with a second limit slot 222 below the supporting plate 21. The limit seat 22 is opened with a third limit slot 223. The third limit slot 223 is connected with the second limit slot 222 and the first limit slot 221 respectively. The lifting rod 24 is fixedly installed below the connecting plate 13 and slidably installed inside the first limit slot 221. The lifting plate 23 is slidably installed inside the second limit slot 222 and is fixedly connected to the supporting plate 21. Two transmission plates 25 are slidably installed in the third limit slot 223. The transmission plate 25 is located between the lifting rod 24 and the lifting plate 23. The contact surfaces of the transmission plate 25 with the lifting rod 24 and the lifting plate 23 are all inclined surfaces. The hydraulic cylinder 12 drives the connecting plate 13 to move, the lifting rod 24 moves along the first limiting groove 221, the transmission plates 25 on both sides approach each other, and the lifting plate 23 rises along the second limiting groove 222, so that the load-bearing plate 21 lifts the gas cylinder on the transmission plate 35, and the gas cylinder is separated from the transmission plate 35. The hydraulic cylinder 12 continues to move, and the lower pressure plate 14 squeezes the gas cylinder to complete the flattening test.

[0039] The support plate 21 is a V-shaped plate. The V-shaped plate limits the position of the gas cylinder to prevent the gas cylinder from detaching from the support plate 21 during the flattening test.

[0040] When the present embodiment is in use, the driving motor 32 is started and the rocking arm 33 rotates clockwise. When in the starting position, the rocking arm 33 and the lifting frame 34 are parallel to the transmission plate 35. After the rocking arm 33 is lifted upward, the lifting frame 34 lifts the gas cylinder on the transmission plate 35, and the gas cylinder is separated from the transmission plate 35. The electromagnet 37 is started to adsorb the gas cylinder. When the rocking arm 33 approaches the transmission plate 35 again, the electromagnet 37 is turned off. When the rocking arm 33 rotates 180 degrees, the lifting frame 34 moves the gas cylinder along the transmission direction to the next position of the transmission plate 35, and the rocking arm 33 continues to rotate 180 degrees to return to the starting position. In the process of returning to the starting position, the hydraulic cylinder 12 performs a pressure test, and the operator at the feeding end places the gas cylinder to be tested in the V-shaped groove, and the operator at the discharging end unloads the gas cylinder that has completed the test.

[0041] During the pressure test, the hydraulic cylinder 12 is started, the connecting plate 13 descends, and the lifting rod 24 is driven to move along the first limiting groove 221. The lifting rod 24 pushes the transmission plate 25 to move toward the second limiting groove 222. The transmission plates 25 on both sides approach each other, and the lifting plate 23 rises along the second limiting groove 222, so that the bearing plate 21 lifts the gas cylinder on the transmission plate 35. The gas cylinder is separated from the transmission plate 35, and the hydraulic cylinder 12 continues to move. The lower pressing plate 14 squeezes the gas cylinder to complete the flattening test.

[0042] The transfer and flattening of the gas cylinders are carried out alternately, thereby completing the continuous test of the gas cylinders, and the test efficiency is higher.

[0043] The above describes in detail the gas cylinder flattening test device provided by the present invention. The description of the specific embodiments is intended only to facilitate understanding of the method and core concepts of the present invention. It should be noted that those skilled in the art will be able to make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the claims of the present invention.

Claims

1. A gas cylinder flattening test device, characterized by: The invention comprises a test frame (11) and a lifting mechanism installed on the test frame, wherein a hydraulic cylinder (12) is installed on the test frame (11), a connecting plate (13) is fixedly installed on the movable end of the hydraulic cylinder (12), a lower pressing plate (14) is provided on the connecting plate (13), a bearing plate (21) is provided below the lower pressing plate (14), the lifting mechanism is installed below the bearing plate (21), the bearing plate (21) is fixedly connected to the movable end of the lifting mechanism, and a transmission mechanism (3) for transmitting a gas cylinder to below the lower pressing plate (14) is provided on both sides of the bearing plate (21); The transmission mechanism (3) includes a support frame (31) and a lifting frame (34), a driving motor (32) is installed on the support frame (31), and a plurality of rocking arms (33) are symmetrically arranged on both sides of the support frame (31), an output shaft of the driving motor (32) is transmission-connected to one of the rocking arms (33), and both sides of the lifting frame (34) are rotationally connected to the plurality of rocking arms (33), a transmission plate (35) is fixedly installed above the support frame (31), and a plurality of placement slots are evenly spaced at the top ends of the lifting frame (34) and the transmission plate (35), a sprocket is arranged on the side of the rocking arm (33) close to the driving motor (32), and a chain (39) is wound between the sprockets on the same side; The lifting mechanism comprises a limiting seat (22), a lifting plate (23) and two lifting rods (24); the limiting seat (22) is installed below the supporting plate (21); both sides of the limiting seat (22) are vertically provided with a first limiting groove (221); the limiting seat (22) is vertically provided with a second limiting groove (222) below the supporting plate (21); the limiting seat (22) is provided with a third limiting groove (223); the third limiting groove (223) is respectively connected to the second limiting groove (222) and the first limiting groove (221). The lifting rod (24) is fixedly mounted below the connecting plate (13) and slidably mounted inside the first limiting groove (221). The lifting plate (23) is slidably mounted inside the second limiting groove (222) and fixedly connected to the bearing plate (21). Two transmission plates (25) are slidably mounted in the third limiting groove (223). The transmission plates (25) are located between the lifting rod (24) and the lifting plate (23). The contact surfaces of the transmission plates (25) with the lifting rod (24) and the lifting plate (23) are all inclined surfaces.

2. A gas cylinder flattening test device according to claim 1, characterized in that: The placement groove is a V-shaped groove.

3. The gas cylinder flattening test device according to claim 1, characterized in that: The rocking arm (33) includes a first rotating rod (332) and a rocking rod (333); a positioning seat (331) is provided on the support frame (31); the first rotating rod (332) is rotatably connected to the positioning seat (331); the output shaft of the drive motor (32) is transmission-connected to the first rotating rod (332); the rocking rod (333) is fixedly connected to the free end of the first rotating rod (332); a second rotating rod (334) is rotatably mounted on the rocking rod (333); and the second rotating rod (334) is rotatably connected to the lifting frame (34).

4. A gas cylinder flattening test device according to claim 3, characterized in that: The transmission mechanism (3) further comprises a plurality of transmission shafts (36), and both ends of the transmission shafts (36) are respectively fixedly connected to two first rotating rods (332) located on the same axis.

5. The gas cylinder flattening test device according to claim 1, characterized in that: An electromagnet (37) is installed in the placement groove, and an induction unit (38) is installed on the support frame (31). The induction unit controls the start and stop of the electromagnet (37) according to the position of the lifting frame (34).

6. The gas cylinder flattening test device according to claim 1, characterized in that: The bearing plate (21) is a V-shaped plate.

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