Quick opening mechanism of composite material curing equipment

Abstract

The invention discloses a quick opening mechanism for composite material curing equipment, which relates to the technical field of autoclaves and comprises a tank door, a rotating arm, a door opening hydraulic cylinder and a rotating door hydraulic cylinder. According to the quick opening mechanism of the composite material curing equipment, the tank door is separated from the sealing surface and then rotates in order, static friction of a sealing piece does not need to be overcome, driving force needed by the door opening hydraulic cylinder is remarkably reduced, and energy consumption of a hydraulic system is reduced. Meanwhile, stress concentration of transmission parts such as the rotating arm and the shaft head supporting unit is reduced through stable action, damage of impact loads to a bearing and a support is avoided, the service life of core parts is prolonged, and the overall maintenance cost of equipment is reduced. The device is simple in structure, convenient to operate, free of impact and clamping stagnation, capable of avoiding equipment shaking or out-of-control risks caused by abrupt change of friction resistance when the tank door rotates, capable of guaranteeing operation safety of operators, coherent and efficient in action process, capable of shortening the opening and closing period of the tank door and capable of reducing non-production waiting time.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of autoclaves, and particularly relates to a quick opening mechanism of a composite material curing device. BACKGROUND

[0002] As the core equipment of composite material autoclave curing forming, material pressure treatment and other processes, the autoclave is widely used in the fields of aerospace, new material manufacturing and the like. The door structure of the autoclave directly affects the sealing reliability, operation safety, operation efficiency and service life of the equipment. The door needs to realize stable sealing in a high-pressure and high-temperature environment, and at the same time meet the operation demand of convenient opening and closing, and therefore becomes the key core of the design of the autoclave.

[0003] The conventional opening mechanism of the door of the composite material curing autoclave adopts a single hydraulic cylinder driving mode or a mechanical lead screw driving mode, and has the problems of high energy consumption, unstable opening and closing process, large impact, high maintenance cost, long downtime and the like, which seriously affect the production efficiency. In addition, the support structure design of the existing door is not perfect, and cannot simultaneously bear the radial force caused by the weight of the door and the axial force in the opening and closing process, so that the door is not smoothly rotated, and is prone to shaking and deviation after long-term use. Therefore, it is necessary to develop a quick opening mechanism capable of realizing balanced stress, stable operation and convenient maintenance and adjustment. SUMMARY

[0004] In order to solve the above-mentioned technical problems in the prior art, the present application provides a quick opening mechanism of a composite material curing device.

[0005] The present application provides a quick opening mechanism of a composite material curing device, which comprises a door, a rotating arm, a door opening hydraulic cylinder and a door rotating hydraulic cylinder. The door is located at the opening of the autoclave. One end of the rotating arm is fixed above the door. A support is fixedly connected to the circumferential surface of the autoclave. The rotating center shaft of the other end of the rotating arm is rotatably connected to the support. The cylinder body of the door opening hydraulic cylinder is fixed to the autoclave. The output end of the door opening hydraulic cylinder is fixed to the rotating arm. The door opening hydraulic cylinder can drive the rotating arm to rotate in the support, so as to realize the opening and closing of the door on the autoclave. The cylinder body of the door rotating hydraulic cylinder is fixed to the side surface of the rotating arm. The output end of the door rotating hydraulic cylinder is fixed to the door. The door rotating hydraulic cylinder is horizontally arranged.

[0006] Preferably, an end head is fixed to the fixed end of the rotating arm and the door. One end of the end head is embedded in the door. The rotating arm is fixedly connected to the door through the end head.

[0007] Preferably, an adjusting bushing is fixed to the rotating arm. The other end of the end head is inserted into the adjusting bushing. A plummer block bearing is arranged at one end of the adjusting bushing where the end head is inserted. A bearing sleeve is fixed to the end of the adjusting bushing away from the rotating arm.

[0008] Preferably, the rotating connection of the rotating arm at both ends of the rotating center shaft inside the support is respectively provided with a first shaft head support unit and a second shaft head support unit, and the rotating arm is rotatably connected with the support through the first shaft head support unit and the second shaft head support unit.

[0009] Preferably, the first shaft head support unit comprises a first shaft head adjusting device, a shaft head tapered roller bearing and a first shaft head bearing gland, the first shaft head adjusting device is located inside one end of the support, the shaft head tapered roller bearing is fixedly sleeved on the outer peripheral side of one end of the first shaft head adjusting device, the outer ring of the shaft head tapered roller bearing is fixed inside the rotating center shaft of the rotating arm, and the first shaft head bearing gland is fixed on the end of the shaft head tapered roller bearing away from the first shaft head adjusting device. Preferably, the second shaft head support unit comprises a second shaft head bearing gland, a shaft head deep groove ball bearing and a second shaft head adjusting device, the second shaft head adjusting device is located inside the other end of the support, the shaft head deep groove ball bearing is fixedly sleeved on the outer peripheral side of one end of the second shaft head adjusting device, the outer ring of the shaft head deep groove ball bearing is fixed inside the rotating center shaft of the rotating arm, and the second shaft head bearing gland is fixed on the end of the shaft head deep groove ball bearing away from the second shaft head adjusting device.

[0010] Preferably, the other end of the second shaft head adjusting device is fixedly connected with a bolt, and the bolt penetrates out of the support.

[0011] Preferably, a plurality of fixed screws are uniformly arranged around the first shaft head adjusting device and the second shaft head adjusting device, and the first shaft head adjusting device and the second shaft head adjusting device are clamped and rotatably connected on the support through the plurality of screws.

[0012] The composite material curing equipment quick opening mechanism has the following advantages and positive effects: (1) The orderly action of the tank door first separating from the sealing surface and then rotating does not need to overcome the static friction of the sealing element, the driving force required by the door opening hydraulic cylinder is significantly reduced, the energy consumption of the hydraulic system is reduced, at the same time, the smooth action reduces the stress concentration of the transmission parts such as the rotating arm and the shaft head support unit, avoids the damage of the impact load to the bearing and the support, prolongs the service life of the core components, and reduces the overall maintenance cost of the equipment.

[0013] (2) The orderly action without impact and jamming avoids the risk of equipment shaking or losing control caused by sudden change of friction resistance when the tank door rotates, ensures the operation safety of the operator, the action process is coherent and efficient, the tank door opening and closing cycle is shortened, and the non-production waiting time is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only used to further understand the embodiments of the present application and form a part of the present application. For those skilled in the art, other drawings can also be obtained without creative labor based on these drawings. In the drawings: Figure 1 is a top view of the quick opening mechanism of the composite material curing equipment of the present application; Figure 2 is a front view of the quick opening mechanism of the composite material curing equipment of the present application; Figure 3 is a schematic view of the tank door opening rotating arm cooperating with the door opening hydraulic cylinder of the present application; Figure 4 is an enlarged view of A of Figure 2 Figure 5 is an internal sectional view of the rotating shaft of the tank door opening and closing support bracket of the present application.

[0015] Explanation of reference signs: 1 - tank door, 2 - rotating arm, 3 - door opening hydraulic cylinder, 4 - door rotating hydraulic cylinder, 5 - support bracket, 6 - adjusting bushing, 7 - bearing sleeve, 8 - aligning bearing, 9 - first shaft head adjusting device, 10 - shaft head tapered roller bearing, 11 - first shaft head bearing gland, 12 - second shaft head bearing gland, 13 - shaft head deep groove ball bearing, 14 - second shaft head adjusting device. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described clearly and completely in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0017] As shown in Figure 1 and Figure 2 , the quick opening mechanism of the composite material curing equipment of the present application comprises a tank door 1, a rotating arm 2, a door opening hydraulic cylinder 3 and a door rotating hydraulic cylinder 4. The tank door 1 is located at the opening of the tank body. One end of the rotating arm 2 is fixed above the tank door 1. A support bracket 5 is fixedly connected to the circumferential surface of the tank body. As shown in Figure 3 ​As shown, the rotation center axis of the other end of the rotating arm 2 is rotationally connected to the support 5, the cylinder body of the door opening hydraulic cylinder 3 is fixed to the tank body, the output end of the door opening hydraulic cylinder 3 is fixed to the rotating arm 2, the door opening hydraulic cylinder 3 can push the rotating arm 2 to rotate in the support 5, so as to realize the opening and closing of the tank door 1 on the tank body, the cylinder body of the door rotating hydraulic cylinder 4 is fixed to the side of the rotating arm 2, the output end of the door rotating hydraulic cylinder 4 is fixed to the tank door 1, and the door rotating hydraulic cylinder 4 is horizontally arranged.

[0018] The door rotating hydraulic cylinder 4 is a horizontal pushing hydraulic component, which provides power for the translation of the tank door 1. When the piston rod is extended, the support 5 is pushed to drive the tank door 1 to translate backward and separate from the flange sealing surface of the tank body. When the piston rod is retracted, the tank door 1 is pulled to translate forward, so that the flange of the tank door 1 is tightly combined with the flange of the tank body.

[0019] The door opening hydraulic cylinder 3 is a rotary driving hydraulic component, which provides power for the rotation of the tank door 1. When the piston rod is retracted, the rotating arm 2 is pulled to rotate, thereby driving the tank door 1 to rotate and realize the opening of the tank door 1. When the piston rod is extended, the rotating arm 2 is pushed to rotate reversely, thereby driving the tank door 1 to close and reset.

[0020] The linkage design of the door opening hydraulic cylinder 3 and the door rotating hydraulic cylinder 4 realizes the orderly action of “translation first and then rotation”. The design that the cylinder body is fixed to the tank body guarantees stable power transmission. The structure of the rotating arm 2 amplifies the driving torque, so that the large tank door 1 is more labor-saving and smooth when rotating, and the jamming is avoided.

[0021] The rotating arm 2 serves as an intermediate transmission component, which on the one hand transmits the pushing force of the door rotating hydraulic cylinder 4 to drive the tank door 1 to translate, and on the other hand transmits the rotary force of the door opening hydraulic cylinder 3 to drive the tank door 1 to rotate.

[0022] As shown in the drawings, Figure 4 The end head 15 is fixed to the fixed end of the rotating arm 2 and the tank door 1. One end of the end head 15 is embedded in the tank door 1, and the rotating arm 2 is fixedly connected to the tank door 1 through the end head 15. The adjusting bushing 6 is fixed to the rotating arm 2, and the other end of the end head 15 is inserted into the adjusting bushing 6. The end head 15 inserted into one end of the adjusting bushing 6 is provided with the aligning bearing 8, and the other end of the adjusting bushing 6 away from the rotating arm 2 is fixed with the bearing sleeve 7. The combined aligning design of the adjusting bushing 6 and the aligning bearing 8 allows the connection position between the tank door 1 and the opening and closing support 5 to be finely adjusted, and can automatically compensate for the slight angle deviation caused by installation or deformation, so as to ensure the parallelism of the plane of the tank door 1 and the plane of the tank body flange.

[0023] As shown in the drawings, Figure 5As shown, the two ends of the rotating center shaft of the swing arm 2 rotatingly connected inside the support 5 are respectively provided with a first shaft head support unit and a second shaft head support unit, and the swing arm 2 is rotatingly connected with the support 5 through the first shaft head support unit and the second shaft head support unit. The first shaft head support unit comprises a first shaft head adjusting device 9, a shaft head tapered roller bearing 10 and a first shaft head bearing pressing cover 11. The first shaft head adjusting device 9 is located inside one end of the support 5, the shaft head tapered roller bearing 10 is fixedly sleeved on the outer circumferential side of one end of the first shaft head adjusting device 9, the outer ring of the shaft head tapered roller bearing 10 is fixed inside the rotating center shaft of the swing arm 2, and the first shaft head bearing pressing cover 11 is fixed on the end of the shaft head tapered roller bearing 10 away from the first shaft head adjusting device 9. The second shaft head support unit comprises a second shaft head bearing pressing cover 12, a shaft head deep groove ball bearing 13 and a second shaft head adjusting device 14. The second shaft head adjusting device 14 is located inside the other end of the support 5, the shaft head deep groove ball bearing 13 is fixedly sleeved on the outer circumferential side of one end of the second shaft head adjusting device 14, the outer ring of the shaft head deep groove ball bearing 13 is fixed inside the rotating center shaft of the swing arm 2, and the second shaft head bearing pressing cover 12 is fixed on the end of the shaft head deep groove ball bearing 13 away from the second shaft head adjusting device 14.

[0024] The first shaft head support unit is a key component for bearing and aligning. The first shaft head adjusting device 9 is arranged inside the first shaft head support unit. The shaft head tapered roller bearing 10 assembled on the device can bear huge radial load and axial load at the same time, and ensure that the shaft system is always in the best stress state. The whole first shaft head support unit is encapsulated and fixed by the first shaft head bearing pressing cover 11.

[0025] The second shaft head support unit is internally provided with the second shaft head adjusting device 14, the device is assembled with the shaft head deep groove ball bearing 13, and is mainly used for bearing radial load. The outer side of the bearing is axially fixed and sealed by the second shaft head bearing pressing cover 12.

[0026] Optionally, the other end of the second shaft head adjusting device 14 is fixedly connected with a bolt, and the bolt penetrates out of the support 5. A plurality of fixed screws are arranged around the first shaft head adjusting device 9 and the second shaft head adjusting device 14, and the first shaft head adjusting device 9 and the second shaft head adjusting device 14 are clamped and rotatingly connected on the support 5 through the plurality of screws. The first shaft head adjusting device 9 and the second shaft head adjusting device 14 are intermediate components connecting the shaft head of the door 1 with the support 5. They are not rigidly fixed with the support 5, but are “clamped” on the support 5 through the fixed screws evenly distributed around, while maintaining the freedom of small-angle rotation; the bolt at the other end of the second shaft head adjusting device 14 penetrates out of the support 5, and the position of the device can be fine-tuned by rotating the bolt.

[0027] The specific operation process is as follows: When it is required to open the door 1, the control system first instructs the rotation door hydraulic cylinder 4 to act. The piston rod of the rotation door hydraulic cylinder 4 extends, pushes the bracket 5, and then transmits force to the door 1. Since the door 1 is still supported by the first shaft head support unit and the second shaft head support unit at this time, this action will drive the entire door 1 to disengage the flange teeth of the door 1 along the direction of the flange of the tank, and then translate backward by a small distance, so that the sealing ring on the door 1 is completely separated from the sealing surface of the flange of the tank. This step effectively eliminates the static friction between the sealing elements, and lays a foundation for the subsequent easy rotation of the door 1.

[0028] After the door 1 is translated and separated, the door opening hydraulic cylinder 3 starts to work. The piston rod of the door opening hydraulic cylinder 3 retracts, and pulls the door 1 opening swing arm 2 to rotate around the axis of the first and second shaft head support units. Since the door 1 opening swing arm 2 is rigidly connected to the door 1, the rotation of the swing arm 2 will drive the entire door 1 to rotate around the vertical axis by a certain angle (usually 90° to 135°), so as to completely move the door 1 away from the opening of the tank, and expose the operation area. During this rotation process, the great weight of the door 1 is mainly borne by the shaft head conical roller bearing 10 in the first shaft head support unit, and the self-aligning bearing 8 automatically adapts to the possible unbalanced load, ensuring smooth, low-noise and non-stuck rotation.

[0029] When closing the door 1, the process is reversed: the door opening hydraulic cylinder 3 first acts to rotate the door 1 to the closed position; then the rotation door hydraulic cylinder 4 acts to stably push the door 1 forward, compress the sealing ring, and complete the sealing.

[0030] It should be noted that, in this document, unless otherwise explicitly specified and limited, the term "connection" or its synonyms should be understood broadly, for example, "connection" can be fixed connection, or detachable connection; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, and those skilled in the art can understand the specific meaning of the above-mentioned term in this application according to the specific circumstances. Moreover, expressions such as "first" and "second" 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 the entities or operations. At the same time, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. In addition, "front", "back", "left", "right", "up", "down" in this document are with reference to the placement state shown in the drawings.

[0031] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A quick opening mechanism for a composite material curing apparatus, characterized by, The utility model provides a kind of tank door, including tank door (1), swing arm (2), door opening hydraulic cylinder (3) and swing door hydraulic cylinder (4), the tank door (1) is located at the opening of tank body, one end of the swing arm (2) is fixed above the tank door (1), bracket (5) is fixedly connected on the lateral surface of tank body, the other end of the swing arm (2) rotation center axis rotation connection is connected in bracket (5), the cylinder body of door opening hydraulic cylinder (3) is fixed on tank body, the output end of door opening hydraulic cylinder (3) is fixed on the swing arm (2), door opening hydraulic cylinder (3) can push the swing arm (2) rotate in the bracket (5), realize the tank door (1) opening and closing on tank body, the cylinder body of swing door hydraulic cylinder (4) is fixed on the side of the swing arm (2), the output end of swing door hydraulic cylinder (4) is fixed on the tank door (1), swing door hydraulic cylinder (4) is horizontally arranged.

2. A quick release mechanism for a composite curing apparatus according to claim 1, wherein, The fixed end of the swing arm (2) and the tank door (1) is fixed with a terminal head (15), one end of the terminal head (15) is embedded in the tank door (1), and the swing arm (2) is fixedly connected with the tank door (1) through the terminal head (15).

3. A quick release mechanism for a composite curing apparatus according to claim 2, wherein, The swing arm (2) is fixed with an adjusting bushing (6), the other end of the terminal head (15) is inserted into the adjusting bushing (6), a plunger bearing (8) is arranged at one end of the adjusting bushing (6) where the terminal head (15) is inserted, and a bearing sleeve (7) is fixed to one end of the adjusting bushing (6) away from the swing arm (2).

4. A quick release mechanism for a composite curing apparatus according to claim 1, wherein, The two ends of the rotation center axis inside the bracket (5) where the swing arm (2) is rotationally connected are respectively provided with a first shaft head supporting unit and a second shaft head supporting unit, and the swing arm (2) is rotationally connected with the bracket (5) through the first shaft head supporting unit and the second shaft head supporting unit.

5. A quick release mechanism for a composite material curing apparatus according to claim 4, wherein, The first shaft head supporting unit comprises a first shaft head adjusting device (9), a shaft head tapered roller bearing (10), and a first shaft head bearing gland (11), the first shaft head adjusting device (9) is located inside one end of the bracket (5), the shaft head tapered roller bearing (10) is fixedly sleeved on one end of the first shaft head adjusting device (9), the outer ring of the shaft head tapered roller bearing (10) is fixed inside the rotation center axis of the swing arm (2), and the first shaft head bearing gland (11) is fixed to one end of the shaft head tapered roller bearing (10) away from the first shaft head adjusting device (9).

6. A quick release mechanism for a composite material curing apparatus according to claim 5, wherein, The second shaft head supporting unit comprises a second shaft head bearing gland (12), a shaft head deep groove ball bearing (13), and a second shaft head adjusting device (14), the second shaft head adjusting device (14) is located inside the other end of the bracket (5), the shaft head deep groove ball bearing (13) is fixedly sleeved on one end of the second shaft head adjusting device (14), the outer ring of the shaft head deep groove ball bearing (13) is fixed inside the rotation center axis of the swing arm (2), and the second shaft head bearing gland (12) is fixed to one end of the shaft head deep groove ball bearing (13) away from the second shaft head adjusting device (14).

7. A quick release mechanism for a composite material curing apparatus according to claim 6, wherein The other end of the second shaft head adjusting device (14) is fixedly connected with a bolt, and the bolt penetrates through the support (5).

8. A quick release mechanism for a composite material curing apparatus according to claim 7, wherein, A plurality of fixed screws are arranged around the first shaft head adjusting device (9) and the second shaft head adjusting device (14), and the first shaft head adjusting device (9) and the second shaft head adjusting device (14) are clamped and rotationally connected to the support (5) through the plurality of fixed screws.

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