Tank cover opening and closing device of vertical vacuum tank and vertical vacuum tank

Abstract

The utility model relates to a vertical vacuum tank cover opening and closing device and a vertical vacuum tank, belongs to the technical field of pressure containers, and solves the problems of low speed and low efficiency due to the fact that a tank cover of an existing vacuum tank is manually hoisted by a crown block. The opening and closing device comprises a lifting mechanism, wherein the lifting mechanism comprises a lifting section, a straight barrel section, a main shaft, a hydraulic cylinder, a coupler and a framework hoist; the straight cylinder section and the lifting section are connected, both ends of the straight cylinder section and the lifting section are open and hollow, and the main shaft penetrates through the lifting section and the straight cylinder section; at least part of the spindle is located in the lifting section and the straight barrel section, the upper end of the spindle penetrates out of the lifting section to be connected with the framework in a hoisting mode, and the lower end of the spindle is connected with the coupler and the hydraulic cylinder. A guide groove is formed in the side wall of the lifting section, and the guide pin wheel of the main shaft is clamped in the guide groove of the lifting section.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure vessel technical field especially relates to a vertical vacuum tank tank cover opening and closing device and vertical vacuum tank. BACKGROUND

[0002] The vertical vacuum tank is a kind of equipment for composite material solidification forming.Unsolidified composite material is placed into vacuum tank.Composite material component and metal cementing component are solidified and formed in vacuum environment in tank.Vertical vacuum tank is widely applied in the manufacture of spaceflight equipment such as rocket, satellite and the like.

[0003] In actual production, vacuum tank adopts material batch production process, and tank cover can be frequently opened and closed.However, the tank cover of existing vacuum tank adopts overhead crane manual hoisting, and speed is slow and efficiency is low. UTILITY MODEL CONTENT

[0004] In view of the above analysis, the utility model aims at providing a vertical vacuum tank tank cover opening and closing device and vertical vacuum tank to solve the problem that the tank cover of existing vacuum tank adopts overhead crane manual hoisting, and speed is slow and efficiency is low.

[0005] The utility model mainly aims at realizing the following technical scheme:

[0006] Firstly, the utility model provides a vertical vacuum tank tank cover opening and closing device, including lifting mechanism, lifting mechanism includes lifting section, straight cylinder section, main shaft, hydraulic cylinder, coupling, skeleton hoisting;

[0007] The straight cylinder section is connected with the lifting section, both ends of both are open, and hollow in the inside, the main shaft passes through the inside of the lifting section and the straight cylinder section;

[0008] At least part of the main shaft is located in the inside of the lifting section and the straight cylinder section, the upper end of the main shaft is connected with the skeleton hoisting and is connected with the coupling, and the coupling is connected with the hydraulic cylinder;

[0009] The inner wall of the lifting section is equipped with guide groove, and the guide pin wheel of the main shaft is clamped in the guide groove of the lifting section.

[0010] Optionally, the guide groove is open slot, including straight line section guide groove and helical rising arc line section guide groove.

[0011] Optionally, the straight line section guide groove is arranged on the side close to the straight cylinder section, and the arc line section guide groove is arranged on the side close to skeleton hoisting.

[0012] Optionally, on the side wall of the lifting section, the top end of the arc line section guide groove is lifted and rotated relative to the bottom end.

[0013] Optionally, the straight cylinder section is arranged close to the hydraulic cylinder side, and the lifting section is arranged close to the skeleton hoisting side.

[0014] Optionally, one end of the straight cylinder section is fixedly connected with the lifting section through bolts.

[0015] Optionally, the skeleton hoist is arranged perpendicularly to the main shaft, one end of the skeleton hoist is connected with the main shaft, and the other end of the skeleton hoist is movably connected with the lifting lug of the tank cover.

[0016] Optionally, the skeleton hoist is connected with the lifting lug of the tank cover through a pin shaft.

[0017] Optionally, the opening and closing device is fixedly connected with the tank body.

[0018] In the second aspect, the utility model also provides a vertical vacuum tank, which comprises a tank cover, a tank body and the opening and closing device.

[0019] Compared with the prior art, the utility model can realize at least one of the following beneficial effects:

[0020] (1) The utility model discloses a hydraulic cylinder and a shaft coupling, which can realize automatic lifting and lowering of the tank cover, the guide groove of the lifting section is arranged as a straight section guide groove and a spiral rising arc section guide groove, and the top end of the arc section guide groove is lifted and rotated by a certain angle relative to the bottom end, so that the tank cover can be turned to a set position after being lifted, and the occupied space is small.

[0021] (2) The vacuum tank cover opening and closing device can realize automatic opening and closing of the tank cover without manual operation, and the automatic control of the tank cover is more simple and convenient.

[0022] In the utility model, the above technical solutions can be combined with each other to realize more preferred combination schemes. Other features and advantages of the utility model will be described in the subsequent specification, and some advantages can become apparent from the specification or can be understood by implementing the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings are only used for the purpose of illustrating specific embodiments and are not considered as limiting the utility model, and the same reference signs represent the same parts throughout the drawings.

[0024] Figure 1 It is a structure schematic view of the vertical vacuum tank cover opening and closing device of the utility model.

[0025] Figure 2 It is a structure schematic view of the vertical vacuum tank cover opening and closing device of the utility model and a vacuum tank.

[0026] Figure 3 It is a guide groove structure schematic view of the opening and closing device lifting section of the utility model.

[0027] Reference signs:

[0028] 101 - cylinder, 102 - cylinder flange, 103 - hinge bolt, 104 - tank cover flange, 105 - head, 106 - lifting lug, 107 - lifting mechanism, 108 - support;

[0029] 201 - skeleton hoist, 202 - main shaft, 203 - lifting section, 204 - straight cylinder section, 205 - coupling, 206 - hydraulic cylinder, 207 - guide pin wheel, 208 - straight section guide groove, 209 - arc section guide groove. DETAILED DESCRIPTION

[0030] The preferred embodiments of the utility model will be described in detail below in conjunction with the drawings, wherein the drawings form a part of the utility model and are used together with the embodiments of the utility model to explain the principles of the utility model, and are not used to limit the scope of the utility model.

[0031] The utility model provides a vertical vacuum tank tank cover opening and closing device, as shown in Figure 1 and Figure 2 The opening and closing device includes lifting mechanism 107, and the lifting mechanism 107 includes lifting section 203, straight cylinder section 204, main shaft 202, hydraulic cylinder 206, coupling 205 and skeleton hoist 201.

[0032] The straight cylinder section 204 is connected with the lifting section 203, both of which are open at both ends and hollow inside, and at least part of the main shaft 202 is located inside the lifting section 203 and the straight cylinder section 204. The upper end of the main shaft passes out of the lifting section and is connected with the skeleton hoist, and the lower end of the main shaft is connected with the coupling, and the coupling is connected with the hydraulic cylinder through threads.

[0033] In a specific embodiment, the straight cylinder section 204 is arranged on the side close to the hydraulic cylinder 206, and the lifting section 203 is arranged on the side close to the skeleton hoist. One end of the straight cylinder section 204 is fixedly connected with the lifting section 203, for example, through bolt connection.

[0034] The side wall of the lifting section 203 is provided with a guide groove, and the guide pin wheel 207 of the main shaft is clamped in the guide groove of the lifting section 203. As shown in Figure 3 The guide groove is an open slot, and the guide groove includes a straight section guide groove 208 and a helical arc section guide groove 209. On the side wall of the lifting section 203, the top end of the arc section guide groove 209 is raised and rotated by 60°-90° relative to the bottom end, for example, 60°, 70°, 80°, 90°, preferably 90°, so as to realize the rotation of the tank cover by a certain angle.

[0035] Specifically, the straight section guide groove 208 is arranged on the side close to the straight cylinder section 204, and the arc section guide groove 209 is arranged on the side close to the skeleton hoist.

[0036] Specifically, the length of the straight segment guide groove 208 is 450-500mm, and the length of the arc segment guide groove 209 is 300-350mm.

[0037] The skeleton lifting device is arranged perpendicularly to the main shaft, and one end of the skeleton lifting device is sleeved on the main shaft, and the other end of the skeleton lifting device is movably connected with the lifting lug of the tank cover.

[0038] In a specific embodiment, the skeleton lifting device is connected with the lifting lug of the tank cover through a pin shaft.

[0039] The opening and closing device is arranged on the side surface of the tank body and is fixedly connected with the tank body. Specifically, the outer wall of the tank body is provided with a support, and the lifting section 203 of the opening and closing device is fixed on the support, so that the fixed connection between the opening and closing device and the tank body is realized. The fixed connection mode may be, for example, welding.

[0040] The vertical vacuum tank of the utility model includes a tank cover, a tank body and the above-mentioned opening and closing device. The tank cover includes a head 105, a lifting lug 106 and a tank cover flange 104, the lifting lug 106 is arranged on the top of the head 105, and the tank cover flange 104 is arranged on the opening end of the head 105.

[0041] The tank body includes a cylinder body 101, a support 108, a cylinder body flange 102 and a joint bolt 103; the cylinder body flange 102 and the tank cover flange are connected through the joint bolt to realize the connection between the head 105 and the tank body.

[0042] When the tank cover is opened, the hydraulic cylinder lifts the main shaft, the guide pin wheel slides in the straight segment guide groove 208, the main shaft drives the skeleton lifting device to lift the tank cover vertically upward. Then the guide pin wheel slides in the arc segment guide groove 209, the main shaft drives the skeleton lifting device to lift the tank cover obliquely upward. When the tank cover is opened, the guide pin wheel slides in the straight segment guide groove 208, the main shaft drives the skeleton lifting device to lift the tank cover vertically downward. After the tank cover flange is attached to the cylinder body flange, the lifting ring bolt is tightened. The tank cover is closed.

[0043] When the tank cover is closed, the hydraulic cylinder pulls the main shaft, the guide pin wheel slides in the arc segment guide groove 209, the main shaft drives the skeleton lifting device to lower the tank cover obliquely, and the tank cover rotates by 90°. Then the guide pin wheel slides in the straight segment guide groove 208, the main shaft drives the skeleton lifting device to lower the tank cover vertically. After the tank cover flange is attached to the cylinder body flange, the lifting ring bolt is tightened. The tank cover is closed.

[0044] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A vertical vacuum tank lid opening and closing device, characterized by, The lifting mechanism comprises a lifting section, a straight section, a main shaft, a hydraulic cylinder, a coupling, and a skeleton lifting device. The straight section is connected with the lifting section, both of which are open at both ends and hollow inside, and the main shaft passes through the inside of the lifting section and the straight section. At least part of the main shaft is located inside the lifting section and the straight section, the upper end of the main shaft passes out of the lifting section and is connected with the skeleton lifting device, the lower end of the main shaft is connected with the coupling, and the coupling is connected with the hydraulic cylinder. A guide groove is arranged on the side wall of the lifting section, and a guide pin wheel of the main shaft is clamped in the guide groove of the lifting section.

2. The opening and closing device according to claim 1, characterized in that The guide groove is an open groove, comprising a straight section guide groove and a helical rising arc section guide groove.

3. The opening and closing device according to claim 2, characterized in that The straight section guide groove is arranged on the side close to the straight section, and the arc section guide groove is arranged on the side close to the skeleton lifting device.

4. The opening and closing device according to claim 2, characterized in that On the side wall of the lifting section, the top end of the arc section guide groove rises and rotates relative to the bottom end.

5. The opening and closing device according to claim 1, characterized in that The straight section is arranged on the side close to the hydraulic cylinder, and the lifting section is arranged on the side close to the skeleton lifting device.

6. The opening and closing device according to claim 5, characterized in that One end of the straight section is fixedly connected with the lifting section by bolts.

7. The opening and closing device according to claim 1, characterized in that The skeleton lifting device is arranged perpendicularly to the main shaft, one end of which is connected with the main shaft, and the other end is movably connected with the lifting lug of the tank cover.

8. The opening and closing device according to claim 7, characterized in that The skeleton lifting device is connected with the lifting lug of the tank cover by a pin shaft.

9. The opening and closing device according to claim 1, characterized in that The opening and closing device is fixedly connected with the tank body.

10. A vertical vacuum tank, characterized by The opening and closing device comprises a tank cover, a tank body, and any one of the opening and closing devices according to claims 1-9.

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