Cylinder liner holding mechanism

Abstract

The application provides a holding mechanism for a gas cylinder liner, which comprises a bracket, a supporting unit, a holding unit and a control system. The supporting unit is arranged on the top surface of the bracket along the central axis of the bracket and is used for providing support for the gas cylinder liner. The holding unit is arranged on the top surface of the bracket along the central axis of the bracket and is arranged on both sides of the bracket, and is used for holding or releasing the gas cylinder liner. The control system is used for controlling the actions of the supporting unit and the holding unit. The holding mechanism for the gas cylinder liner can be used when the state or position of the gas cylinder liner needs to be transferred, especially before and after the heat treatment of the gas cylinder liner, and when the gas cylinder liner is subjected to a turning motion. The holding mechanism can hold and fix the gas cylinder liner placed on the bracket through the holding unit, so that the gas cylinder liner does not displace in the radial direction.

Description

Technical Field

[0001] This invention relates to the field of heat treatment technology, and in particular to a holding mechanism for a gas cylinder liner. Background Technology

[0002] In existing technologies, when adjusting the orientation and placement of the inner liner of a large hydrogen cylinder (large hydrogen cylinder liners generally refer to high-pressure composite cylinders with aluminum alloy liner volumes of 300-1500L), especially during heat treatment, it is often necessary to flip the inner liner from a horizontal to a vertical position before heat treatment can proceed. Furthermore, after heat treatment, the vertical inner liner must be flipped back to a horizontal position before proceeding to the next step. However, because large inner liners are generally very long, reaching up to 6.5 meters in length and weighing up to one ton, flipping a 6.5-meter-long, 1-ton inner liner, even after being flipped to a horizontal position, with the top of the inner liner still at least 4.7 meters above the ground, makes manual operation extremely difficult. Even when using other equipment for flipping, the excessively large and heavy inner liner requires securing measures. If not handled carefully, the inner liner of the gas cylinder may detach, which may damage the inner liner or even cause injury or death. Summary of the Invention

[0003] The purpose of this invention is to solve the problem of fixing large gas cylinder liners on other equipment. A holding mechanism for gas cylinder liners is provided to stably hold and fix gas cylinder liners of different sizes. The specific technical solution is as follows:

[0004] A gas cylinder liner holding mechanism, characterized in that it includes a bracket, a support unit, a holding unit, and a control system.

[0005] The support unit is disposed on the top surface of the bracket and is arranged along the central axis of the bracket. The support unit is used to provide support for the inner liner of the gas cylinder.

[0006] The holding unit is located on the top surface of the bracket and on both sides of the bracket along the central axis of the bracket. The holding unit is used to hold or release the inner liner of the gas cylinder.

[0007] The control system is used to control the movement of the support unit and the holding unit.

[0008] Furthermore, in the aforementioned gas cylinder liner holding mechanism, at least two support units are provided, and each support unit includes two columns, one support block, and two rollers.

[0009] The support block is arranged on the central axis of the bracket, and two columns are arranged on the two sides of the support block respectively, and the columns are higher than the support block;

[0010] The rolling shafts are arranged between each column and the support block, and the outer side wall of the gas cylinder liner directly contacts the two rolling shafts;

[0011] After the two columns, the two rolling shafts and the support block are connected, the support unit can be formed in an M shape.

[0012] Further, in the above-mentioned holding mechanism for the gas cylinder liner, the lower end of the support block has a telescopic structure, which can move up and down in a direction perpendicular to the central axis;

[0013] The rolling shaft has a sleeve structure, and the inside of the rolling shaft is telescopic and provided with a shaft core.

[0014] Further, in the above-mentioned holding mechanism for the gas cylinder liner, the outer wall of the rolling shaft is provided with a coating layer, and the coating layer has a friction force;

[0015] The rolling shaft is connected to the top end of the column through an adjusting block, and an adjusting gasket is arranged between the adjusting block and the column;

[0016] A driving motor is further arranged on the column, one end of the rolling shaft passes through the adjusting block and is connected to the output end of the driving motor, and rotation of the rolling shaft can drive the gas cylinder liner in contact with it to move axially.

[0017] Further, in the above-mentioned holding mechanism for the gas cylinder liner, the holding unit is not less than two, and each holding unit comprises a holding arm and an adjusting cylinder,

[0018] The lower end of the holding arm is rotatably mounted on the bracket through a mounting seat, and the holding arm is used for radially fixing the gas cylinder liner;

[0019] The adjusting cylinder is movably connected with the holding arm, and is used for driving the holding arm to move.

[0020] Further, in the above-mentioned holding mechanism for the gas cylinder liner, the upper end of the holding arm extends obliquely towards the central axis of the bracket, and a limiting block is arranged on the inner side of the upper end of the holding arm towards the bracket.

[0021] Further, in the above-mentioned holding mechanism for the gas cylinder liner, the cylinder body of the adjusting cylinder is rotatably mounted on the bracket through a shaft seat, and the push rod of the adjusting cylinder is rotatably connected to the inner side wall of the lower end of the holding arm through a connecting piece.

[0022] Further, in the holding mechanism for the gas cylinder liner, a positioning part is arranged on the bracket, and the positioning part is used for fixing the pin shaft at the top of the gas cylinder liner.

[0023] Further, in the holding mechanism for the gas cylinder liner, the holding units are arranged symmetrically on both sides of the central axis of the bracket.

[0024] Further, in the holding mechanism for the gas cylinder liner, the holding units are arranged symmetrically on both sides of the central axis of the bracket.

[0025] Compared with the prior art, the holding mechanism for the gas cylinder liner has the following advantages:

[0026] The holding mechanism for the gas cylinder liner can be used when the state or position of the gas cylinder liner needs to be transferred, especially when the gas cylinder liner is turned over before and after heat treatment. The holding mechanism can hold and fix the gas cylinder liner on the bracket through the holding units, so that the gas cylinder liner does not displace in the radial direction. Meanwhile, the positioning part on the bracket is engaged with the pin shaft at the top of the gas cylinder liner, so that the gas cylinder liner does not displace in the axial direction.

[0027] The holding mechanism further comprises an adjustable supporting unit, which is used to adapt to gas cylinder liners with different diameters and different volumes. Through the adjustment of the supporting unit, different gas cylinder liners on the bracket can be adjusted to a state suitable for being held by the holding units. Therefore, the holding mechanism has strong applicability, high operation efficiency and excellent safety. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application, serve to explain the application, and do not constitute an improper limitation on the application. Among them:

[0029] Figure 1 A use state diagram of the holding mechanism for the gas cylinder liner is provided.

[0030] Figure 2 A supporting unit structure schematic diagram of the holding mechanism for the gas cylinder liner is provided.

[0031] Figure 3 A holding unit structure schematic diagram of the holding mechanism for the gas cylinder liner is provided.

[0032] Explanation of reference signs:

[0033] 1, bracket; 2, support unit; 21, column; 22, support block; 23, roller; 24, adjusting block; 3, holding unit; 31, adjusting cylinder; 32, holding arm; 33, mounting seat; 34, shaft seat; 35, connecting piece; 36, limiting block; 4, positioning part; 5, gas cylinder liner. DETAILED DESCRIPTION

[0034] The present application will be described in detail below with reference to the drawings and embodiments. Each example is provided by way of explanation of the present application rather than limitation of the present application. In fact, those skilled in the art will appreciate that modifications and variations can be made in the present application without departing from the scope or spirit of the present application. For example, features shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present application include such modifications and variations as come within the scope of the appended claims and their equivalents.

[0035] In the description of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and are not required to be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. The terms "connected", "connected", "provided" used in the present application should be understood broadly, for example, it can be fixedly connected or detachably connected; it can be directly connected or indirectly connected through intermediate components, and the specific meaning of the above terms can be understood by those skilled in the art according to the specific circumstances.

[0036] To solve the above problems, as shown in Figures 1 to 3 , wherein Figure 1 is a use state diagram of the holding mechanism for the gas cylinder liner 5 provided by the present application; Figure 2 is a support unit 2 structure schematic diagram of the holding mechanism for the gas cylinder liner 5 provided by the present application; Figure 3 is a holding unit 3 structure schematic diagram of the holding mechanism for the gas cylinder liner 5 provided by the present application.

[0037] Specifically, as shown in Figure 1 , the present application provides a holding mechanism for a gas cylinder liner 5, which comprises a bracket 1, a support unit 2, a holding unit 3 and a control system. The support unit 2 is arranged on the upper top surface of the bracket 1 along the central axis of the bracket 1. The support unit 2 is used to provide support for the gas cylinder liner 5, that is, the gas cylinder liner 5 needs to be placed directly on the support unit 2 of the holding mechanism, instead of being placed directly on the body of the bracket 1.

[0038] As shown in Figure 1As shown, the holding unit 3 is arranged on the upper top surface of the bracket 1 and on both sides of the bracket 1 along the central axis direction (e.g. Figure 1 The holding unit 3 is used to hold or release the gas cylinder liner 5, that is, when the gas cylinder liner 5 is adjusted, the gas cylinder liner 5 needs to be placed on the supporting unit 2 and held by the holding unit 3. When the gas cylinder liner 5 is removed from the holding mechanism, the holding unit 3 needs to be released.

[0039] The above-mentioned control system is used to control the actions of the supporting unit 2 and the holding unit 3. The control system includes a workpiece presence sensor arranged on the supporting unit 2. When the workpiece presence sensor detects that the gas cylinder liner 5 is placed on the supporting unit 2, the control system determines the detection result of the last workpiece presence sensor. If the last detection result is no workpiece, the control system controls the holding unit 3 to close. Conversely, if the control system determines the detection result of the last workpiece presence sensor and finds that the last detection result is a workpiece, the control system controls the holding unit 3 to open. The detection node of the workpiece presence sensor should occur at the beginning and end of a cycle operation. If the beginning is from no gas cylinder liner 5 to placing the gas cylinder liner 5, the end is from placing the gas cylinder liner 5 to unloading the gas cylinder liner 5. Conversely, if the beginning is from placing the gas cylinder liner 5 to unloading the gas cylinder liner 5, the end is from no gas cylinder liner 5 to placing the gas cylinder liner 5. In this way, the detection link is set to ensure the accuracy of the detection result output.

[0040] Further, as shown in Figure 2 The above-mentioned supporting unit 2 is provided with no less than two, each of which includes two columns 21, a supporting block 22 and two rollers 23. The supporting block 22 is arranged on the central axis of the bracket 1, and the two columns 21 are arranged on both sides of the supporting block 22, and the column 21 is higher than the supporting block 22. Each column 21 and the supporting block 22 are provided with a roller 23, and the outer wall of the gas cylinder liner 5 directly contacts the two rollers 23.

[0041] Specifically, the two uprights 21 can be symmetrically arranged on both sides of the support block 22 along the central axis of the bracket 1, or they can be staggered on both sides at equal distances from the central axis. Regardless of the arrangement, the two uprights 21, the two rollers 23, and the support block 22 can form an M-shaped support unit 2. The support unit 2 is M-shaped, making its structure more stable. At the same time, the gas cylinder liner 5 can be placed directly in the middle of the M-shape, in the V-shaped groove formed by the two rollers 23 and the support block 22. Under its own weight, the gas cylinder liner 5 will sink towards the deep V of the V-shaped groove as much as possible. The V-shaped groove can lock and fix the gas cylinder liner 5 inside, making the gas cylinder liner 5 more stable.

[0042] Furthermore, the lower end of the support block 22 has a telescopic structure that can move up and down in a direction perpendicular to the central axis. Simultaneously, the roller 23 is a sleeve structure, with a telescopically movable shaft inside. That is, the telescopic structure at the lower end of the support block 22 moves up and down, simultaneously causing the roller 23 to also move up and down. While the roller 23 moves up and down, the end of the roller 23 connected to the column 21 is rotatably connected, and both rollers 23 move symmetrically with the support block 22. This arrangement allows the support unit 2 to support gas cylinder liners 5 of different diameters and volumes. When the support block 22 moves upward (e.g., ...), Figure 2 When the support block 22 extends downwards (as it extends from the top), it drives the rollers 23 on both sides to rotate while simultaneously retracting. At this time, the V-shaped opening formed by the two rollers 23 and the support block 22 widens, thus supporting the large-diameter gas cylinder liner 5. Conversely, when the support block 22 extends downwards (as it extends from the top), it retracts. Figure 2 When the lower part of the cylinder retracts, the support block 22 drives the rollers 23 on both sides to rotate and extend at the same time. At this time, the V-shaped opening formed by the two rollers 23 and the support block 22 becomes smaller, which can support the small-diameter gas cylinder liner 5.

[0043] Furthermore, the outer wall of the roller 23 is provided with a coating layer, which has frictional properties. The roller 23 is connected to the top of the column 21 via an adjusting block 24, and an adjusting shim is provided between the adjusting block 24 and the column 21. The adjusting block 24 and the shim are provided to extend the height of the column 21 when needed, so that the support unit 2 can support gas cylinder liners 5 of more sizes.

[0044] Further, the column 21 is also provided with a drive motor, one end of the roller 23 passes through the adjusting block 24 and is connected with the output end of the drive motor (not shown in the figure), the roller 23 is driven to rotate due to the friction, and the rotation of the roller 23 can drive the gas cylinder liner 5 in contact with it to move axially. That is to say, when the truss manipulator grabs the gas cylinder liner 5 and places it on the support unit 2, if the axial placement position of the gas cylinder liner 5 is deviated, the position of the gas cylinder liner 5 needs to be adjusted. The control system can control the drive motor to start and drive the roller 23 to rotate, thereby driving the gas cylinder liner 5 to move axially until the gas cylinder liner 5 reaches the appropriate position, and then the control system controls the drive motor to stop.

[0045] Preferably, the material of the coating layer of the roller 23 is polyurethane.

[0046] Further, as shown in the figure, Figure 3 The holding unit 3 is provided with not less than two, each of which includes a holding arm 32 and an adjusting cylinder 31. The lower end of the holding arm 32 is rotatably mounted on the bracket 1 through a mounting seat 33, and the holding arm 32 is used for radially fixing the gas cylinder liner 5. The adjusting cylinder 31 is movably connected with the holding arm 32 and is used for driving the holding arm 32 to move. That is, when the adjusting cylinder 31 moves after receiving the instruction from the control system, the adjusting cylinder 31 drives the holding arm 32 to move towards the center axis of the bracket 1 or away from the center axis of the bracket 1.

[0047] Specifically, the upper end of the holding arm 32 extends obliquely towards the center axis of the bracket 1, and the upper end of the holding arm 32 is provided with a limiting block 36 towards the inside of the bracket 1. The oblique extension of the upper end of the holding arm 32 towards the center axis of the bracket 1 is a corresponding setting in accordance with the cylindrical structure of the gas cylinder liner 5, which can embrace the gas cylinder liner 5 inside the holding arm 32 after closing, thereby realizing fixation. The limiting block 36 is provided to further fix and limit the gas cylinder liner 5 after closing, so as to ensure that the gas cylinder liner 5 will not fall off.

[0048] Further, the cylinder body of the adjusting cylinder 31 is rotatably mounted on the bracket 1 through a shaft seat 34, and the push rod of the adjusting cylinder 31 is rotatably connected to the inner side wall of the lower end of the holding arm 32 through a connecting piece 35.

[0049] Further, the bracket 1 is also provided with a positioning part 4, which is used for fixing the pin shaft at the top of the gas cylinder liner 5. When the control system detects that the pin shaft of the gas cylinder liner 5 is clamped with the positioning part 4, the drive motor is stopped, thereby completing the axial adjustment of the gas cylinder liner 5.

[0050] Further, in one embodiment of the present application, the holding units 3 are staggered on both sides of the central axis of the bracket 1.

[0051] Further, in another embodiment of the present application, the holding units 3 are symmetrically arranged on both sides of the central axis of the bracket 1.

[0052] Compared with the prior art, the present application has the following advantages:

[0053] The holding mechanism for the gas cylinder liner 5 can be used when the state or position of the gas cylinder liner 5 needs to be transferred, especially before and after the heat treatment of the gas cylinder liner 5. When the gas cylinder liner 5 is turned over, the holding mechanism can hold and fix the gas cylinder liner 5 placed on the bracket 1 through the holding units 3, so that the gas cylinder liner 5 does not displace in the radial direction. At the same time, the positioning part 4 on the bracket 1 is engaged with the pin shaft at the top end of the gas cylinder liner 5, so that the gas cylinder liner 5 does not displace in the axial direction.

[0054] The holding mechanism further comprises an adjustable supporting unit 2, which is used to adapt to gas cylinder liners 5 of different diameters and different volumes. By adjusting the supporting unit 2, different gas cylinder liners 5 placed on the bracket 1 can be adjusted to a suitable holding state of the holding units 3. Therefore, the holding mechanism has strong applicability, high operation efficiency, and excellent safety.

[0055] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A holding mechanism for a gas cylinder liner, characterized in that, Includes brackets, support units, holding units, and control systems. The support unit is disposed on the top surface of the bracket and is arranged along the central axis of the bracket. The support unit is used to provide support for the inner liner of the gas cylinder. The holding unit is located on the top surface of the bracket and on both sides of the bracket along the central axis of the bracket. The holding unit is used to hold or release the inner liner of the gas cylinder. The control system is used to control the movement of the support unit and the holding unit; The support unit is provided in no fewer than two parts, and each support unit includes two columns, one support block and two rollers. The support block is located on the central axis of the bracket, and the two columns are respectively located on both sides of the support block, with the columns being higher than the support block. Each of the columns and the support blocks is provided with a roller, and the outer side wall of the gas cylinder liner is in direct contact with two of the rollers; the end of the roller connected to the column is rotatably connected. The two columns, the two rollers, and the support block can all be connected to form an M-shaped support unit; The lower end of the support block has a telescopic structure, which can move up and down in a direction perpendicular to the central axis. The roller has a sleeve structure, and the roller has a retractable shaft core inside; The outer wall of the roller is provided with a coating layer, and the coating layer has friction. The roller is connected to the top of the column via an adjusting block, and an adjusting shim is provided between the adjusting block and the column; A drive motor is also provided on the column. One end of the roller passes through the adjusting block and is connected to the output end of the drive motor. The rotation of the roller can drive the inner liner of the gas cylinder in contact with it to move axially.

2. The holding mechanism for the gas cylinder liner according to claim 1, characterized in that, The holding unit is provided in no fewer than two, and each holding unit includes a holding arm and an adjusting cylinder. The lower end of the holding arm is rotatably mounted on the bracket via a mounting base, and the holding arm is used to radially fix the inner liner of the gas cylinder; The regulating cylinder is movably connected to the holding arm and is used to drive the holding arm to move.

3. The holding mechanism for the gas cylinder liner according to claim 2, characterized in that, The upper end of the holding arm extends obliquely toward the central axis of the bracket, and a limiting block is provided on the upper end of the holding arm toward the inner side of the bracket.

4. The holding mechanism for the gas cylinder liner according to claim 3, characterized in that, The cylinder body of the adjusting cylinder is rotatably mounted on the bracket via a bearing seat, and the push rod of the adjusting cylinder is rotatably connected to the inner wall of the lower end of the holding arm via a connector.

5. The gas cylinder liner holding mechanism according to any one of claims 1-4, characterized in that, The bracket is also provided with a positioning part, which is used to fix the pin at the top of the gas cylinder liner.

6. The holding mechanism for the gas cylinder liner according to claim 5, characterized in that, The holding units are staggered on both sides of the central axis of the bracket.

7. The holding mechanism for the gas cylinder liner according to claim 5, characterized in that, The holding units are symmetrically arranged on both sides of the central axis of the bracket.

Images