Auxiliary jacking device for nuclear power installation

Abstract

The utility model belongs to an auxiliary device, and particularly relates to a nuclear power installation jacking auxiliary device. The nuclear power installation jacking auxiliary device comprises a supporting piece locking mechanism, a push-up vehicle locking mechanism, an auxiliary platform mechanism and a limiting device, the auxiliary platform mechanism is arranged at the lowermost end, the supporting piece locking mechanism is arranged on the auxiliary platform mechanism, the supporting piece locking mechanism is connected with the auxiliary platform mechanism through the push-up vehicle locking mechanism, and the limiting device is arranged on the push-up vehicle locking mechanism. A limiting device is further arranged on the auxiliary platform mechanism. The utility model has the advantages that: the manufacturing cost is low; the device is suitable for carrying, supporting and jacking the pipe fittings with the specifications of 12 inches (the outer diameter phi is 325 mm) or below in a nuclear island construction area; the operation is simple, and the clamping and locking device is safe and reliable; work efficiency is high and labor cost is saved; errors caused by manual work are reduced, and the safety and the quality of the pipe fittings and the ventilation air pipes are improved.

Description

Technical Field

[0001] The invention belongs to an auxiliary device, and specifically relates to a nuclear power installation jacking auxiliary device. Background Art

[0002] In nuclear power construction projects, due to the special structure of the nuclear island, a large number of pipelines will need to be assembled and welded on site. Therefore, the welded pipelines need to be supported to a certain height before welding can be carried out, and the ventilation ducts also need to be lifted to a certain height for operation. The current method is to directly use manpower to carry the pipe fittings and ventilation ducts on the shoulders of workers for support operations, or use scaffolders to set up scaffolding in a crisscross pattern to support the pipelines. Each pair of pipelines and ventilation ducts requires at least 4 crisscross frames to achieve auxiliary pairing of pipelines. However, due to errors in manual operation, the height of each set of scaffolding generally has deviations. During the support and lifting process, 2 to 3 people need to be invested to adjust by "dragging, pulling, and lifting". The manual and crisscross frame methods are not only troublesome to set up, but also very cumbersome to adjust, and are not conducive to the fixation and pairing of pipelines and ventilation ducts. A lot of manpower is required each time, and due to the unstable factors of manpower, there are certain safety and quality risks. Utility Model Content

[0003] Aiming at the defects of the prior art, the invention provides a nuclear power installation jacking auxiliary device.

[0004] The present invention is realized as follows: a nuclear power installation jacking auxiliary device, which includes a support locking mechanism, a push-up vehicle locking mechanism, an auxiliary platform mechanism, and a limit device, wherein the auxiliary platform mechanism is arranged at the lower end, the support locking mechanism is arranged on the auxiliary platform mechanism, the support locking mechanism is connected to the auxiliary platform mechanism through the push-up vehicle locking mechanism, and the auxiliary platform mechanism is also provided with a limit device.

[0005] The auxiliary lifting device for nuclear power installation as described above, wherein the auxiliary platform mechanism is welded by a 10 mm steel plate and three 6 mm steel plates in the shape of a push-up vehicle.

[0006] in:

[0007] Φ18mm round holes need to be drilled in the 10mm steel plate to facilitate welding of the M16 nuts for later maintenance.

[0008] The first 6mm steel plate does not need to be drilled, but the flatness of the platform must be maintained;

[0009] The second 6mm steel plate needs to be drilled with a Φ8mm round hole to facilitate welding of the M8 nut for later maintenance;

[0010] The third 6mm steel plate needs to be drilled with a Φ8mm round hole to facilitate welding of the M8 nut for later maintenance.

[0011] In the above-mentioned nuclear power installation jacking auxiliary device, the support member locking mechanism is welded by a Φ8mm round tube, an M16 screw, an M16 nut and a locking plate, wherein the M16 nut needs to be finally welded on a 10mm steel plate.

[0012] As described above, a nuclear power installation lifting auxiliary device, wherein the locking mechanism of the lifting vehicle is composed of M8 bolts and M8 nuts, wherein the M8 nuts are mainly welded to the second steel plate and the third steel plate of the auxiliary device, the second steel plate and the third steel plate are firstly drilled with Φ10 holes, and then the M8 nuts are welded to the steel plates.

[0013] As described above, a nuclear power installation lifting auxiliary device, wherein the limiting device is welded by 4 25mm first square tubes and 2 25mm second square tubes, and is welded to the auxiliary platform mechanism after being manufactured.

[0014] The remarkable effects of the present invention are as follows: 1) all components of the tool of the present invention are common parts frequently used on construction sites. Except for the corresponding screw rod (102) which needs to be specially made, the remaining components can be made from local materials and can be made using waste materials, so the production cost is low; 2) the present invention is suitable for the transportation, support and lifting of pipe fittings with a specification size of less than 12 inches (outer diameter Φ325mm) in the nuclear island construction area; 3) the present invention is suitable for the transportation, support and lifting of ventilation ducts with a specification size of less than 325mm in the nuclear island construction area; 4) the present invention is simple to operate, and the clamping and locking device is safe and reliable; 5) the work efficiency is high. With the help of the tool, one person can transport, support and lift the pipe fittings and ventilation ducts alone, saving labor costs; 6) the tool of the present invention can be used to adjust the support and lifting of pipe fittings and ventilation ducts within a limited range, reducing manual errors and improving the safety and quality of pipe fittings and ventilation ducts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 : A three-dimensional diagram of the structure of the lifting auxiliary device;

[0016] Figure 2 : Support locking mechanism;

[0017] Figure 3 : Locking mechanism of the push-lift vehicle;

[0018] Figure 4 : Auxiliary platform mechanism;

[0019] Figure 5 : Limiting device.

[0020] In the figure: 10. Support locking mechanism, 101. Round tube, 102. Screw, 103. Locking plate, 104. Nut, 20. Push car locking mechanism, 201. M8 bolt, 202. M8 nut, 30. Auxiliary platform, 302. Steel plate, (104-1, 202-1, 202-2). Round hole, (301, 302, 303, 304). Steel plate, (401, 402). Square tube. DETAILED DESCRIPTION

[0021] A nuclear power installation lifting auxiliary device, the structure of which includes a support locking mechanism 10, a lifting vehicle locking mechanism 20, steel plates (301, 302, 303, 304), an M8 nut 202, an M8 bolt 201, and a square tube (401, 402)

[0022] Auxiliary lifting device sub-item structure

[0023] ① The support locking mechanism 10 is welded by a Φ8mm round tube 101, an M16 screw 102, an M16 nut 104 and a locking plate 103, wherein the M16 nut needs to be finally welded on the operating platform 302. The advantage of this method is that during later maintenance, once the nut slips and presses, the M16 nut 104 can be directly replaced, which can simplify later maintenance and facilitate later equipment maintenance.

[0024] ② The locking mechanism 20 of the push-up vehicle is mainly composed of M8 bolts 201 and M8 nuts 202, wherein the M8 nuts 202 are mainly welded to the steel plates 303 and 304 of the auxiliary device. The steel plates 303 and 304 are firstly drilled with Φ10 holes 202-1, and then the M8 nuts 202 are welded to the steel plates. This method is mainly for the purpose of directly replacing the M8 nuts 202 in case of slippage and pressure on the nuts during later maintenance, which is convenient for later equipment maintenance.

[0025] ③ The auxiliary platform mechanism 30 is mainly welded by 10 mm steel plate 302, 6 mm steel plate 301, 6 mm steel plate 303, and 6 mm steel plate 304 in the shape of a push-up vehicle;

[0026] in:

[0027] The 10mm steel plate 302 needs to be drilled with a Φ18mm round hole 104-1 to facilitate welding of the M16 nut 104 for later maintenance;

[0028] 6mm steel plate 301 does not require drilling, but the flatness of the platform must be maintained;

[0029] The 6mm steel plate 303 needs to be drilled with a Φ8mm round hole 202-1 to facilitate welding of the M8 nut 202 for later maintenance;

[0030] 6mm steel plate 304 needs to drill Φ8mm round hole 202-2 to facilitate welding of M8 nut 202 for later maintenance;

[0031] ④ The limiting device 40 is mainly welded by four 25 mm square tubes 401 and two 25 mm square tubes 402. After being manufactured, it is welded to the auxiliary platform 30 to fix one end of the jacking device.

[0032] The operation process of this new type is roughly as follows (taking pipe fittings as an example)

[0033] ①Place the lifting auxiliary device on the supporting legs of the push cart;

[0034] ② Use the bolt locking mechanism 20 to fix the jacking device and the support leg 501;

[0035] ③ Place the pipe 60 on the auxiliary device and lock the pipe 60 using the support locking mechanism 10;

[0036] ④ Connect the stacker to the power supply and use the stacker's moving and pushing functions to transport and support the pipes;

[0037] ⑤ After the operation is completed, the pipe 60 is loosened with the support locking mechanism 10, and after confirming that there is no safety risk in the surrounding operations, the stacker support legs 501 are lowered to complete the corresponding handling support and jacking operations.

[0038] The device is suitable for the docking and lifting of pipes below 12 inches (Φ325mm) and ventilation ducts below 325mm in width. When using, first lock the lifting device on the stacker, then place the pipe fittings and ventilation ducts on the lifting device, use the spiral locking function on the device to fix the pipe fittings and ventilation ducts, and then use the stacker's lifting function to support and lift the pipe fittings and ventilation ducts, effectively improving the lifting efficiency, reducing the labor and scaffolding overlap investment, reducing labor intensity, and saving labor costs.

Claims

1. A nuclear power installation lifting auxiliary device, characterized in that: The invention comprises a support member locking mechanism (10), a push-lift vehicle locking mechanism (20), an auxiliary platform mechanism (30), and a limiting device (40), wherein the auxiliary platform mechanism (30) is arranged at the lowest end, the support member locking mechanism (10) is arranged on the auxiliary platform mechanism (30), the support member locking mechanism (10) is connected to the auxiliary platform mechanism (30) through the push-lift vehicle locking mechanism (20), and the limiting device (40) is also arranged on the auxiliary platform mechanism (30).

2. A nuclear power installation lifting auxiliary device according to claim 1, characterized in that: The auxiliary platform mechanism (30) is welded from a 10 mm steel plate (302) and three 6 mm steel plates in the shape of a push-up vehicle. in: A Φ18mm round hole (104-1) needs to be drilled in the 10mm steel plate (302) so as to weld the M16 nut (104) and facilitate maintenance later; The first 6mm steel plate does not need to be drilled, but the flatness of the platform must be maintained; The second 6mm steel plate needs to be drilled with a Φ8mm round hole to facilitate welding of the M8 nut (202) for later maintenance; The third 6mm steel plate needs to be drilled with a Φ8mm round hole to facilitate welding of the M8 nut (202) for later maintenance.

3. A nuclear power installation lifting auxiliary device as claimed in claim 2, characterized in that: The support member locking mechanism (10) is welded from a Φ8 mm round tube (101), an M16 screw rod (102), an M16 nut (104) and a locking plate (103), wherein the M16 nut needs to be finally welded on a 10 mm steel plate (302).

4. A nuclear power installation lifting auxiliary device as claimed in claim 3, characterized in that: The locking mechanism (20) of the push-lift vehicle is composed of an M8 bolt (201) and an M8 nut (202), wherein the M8 nut (202) is mainly welded to the second steel plate (303) and the third steel plate (304) of the auxiliary device, and the second steel plate (303) and the third steel plate (304) are firstly drilled with a Φ10 hole (202-1), and then the M8 nut (202) is welded to the steel plate.

5. A nuclear power installation lifting auxiliary device as claimed in claim 4, characterized in that: The limiting device (40) is welded by four 25 mm first square tubes and two 25 mm second square tubes, and is welded to the auxiliary platform mechanism (30) after being manufactured.

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