CN213168152U - Trolley for installing special door of nuclear power station - Google Patents
Trolley for installing special door of nuclear power station Download PDFInfo
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- CN213168152U CN213168152U CN202021614060.XU CN202021614060U CN213168152U CN 213168152 U CN213168152 U CN 213168152U CN 202021614060 U CN202021614060 U CN 202021614060U CN 213168152 U CN213168152 U CN 213168152U
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Abstract
The utility model discloses a trolley for installing special doors of a nuclear power station, which comprises a bending channel steel, two groups of protection components and two groups of walking components; the two groups of protection components are respectively arranged at the left side and the right side of the bent channel steel; the protection assembly comprises a detachable railing and two round pipes; the circular tube is vertically fixed on the outer side wall of the bent channel steel; the bottom ends of the two vertical rods of the detachable handrail can be respectively inserted into the corresponding circular tubes; the two groups of walking components are respectively arranged at the front end and the rear end of the bent channel steel; the walking assembly comprises round steel and two triangular wheels; the triangular wheel comprises two triangular plates, three groups of rubber wheels and a pin shaft; the two triangular wheels are respectively arranged at two ends of the round steel and can rotate around the round steel; the round steel is arranged below the bent channel steel, the round steel is longer than the width of the bent channel steel, and the round steel is fixed at the bottom of the bent channel steel along the direction perpendicular to the length of the bent channel steel. The utility model has the advantages of light weight, flexible structure, strong bearing capacity, wide application range, safety, convenience, etc.
Description
Technical Field
The utility model belongs to the construction field relates to a travelling bogie, especially relates to a dolly is used in special door installation of nuclear power station.
Background
In the installation process of the special doors of the nuclear power station, except that a small part of outdoor special doors are directly hoisted in place and installed by using hoisting equipment such as a tower crane, a truck crane and the like, the rest of special doors accounting for more than 80 percent of the special doors are arranged in a nuclear island plant. Because nuclear island factory building inside passage is narrow and small, there is the support wall both sides, and the ground is uneven, there is obstacle such as pipeline barrier more, can't use the great instrument of overall dimension such as hydraulic pressure car to transport backward, can only cooperate and lead the chain many people cooperation bare-handed transport, but the weight of special door is many more than 1000kg, and this kind of transport is not only time-consuming and labor-consuming, has certain potential safety hazard moreover.
SUMMERY OF THE UTILITY MODEL
The utility model provides a dolly is used in installation of nuclear power station special door to overcome prior art's defect.
In order to achieve the above object, the utility model provides a dolly is used in installation of nuclear power station special door has such characteristic: the device comprises bent channel steel, two groups of protection components and two groups of walking components; the bending channel steel is a strip-shaped groove body with a groove bottom and two opposite side walls; the two groups of protection components are respectively arranged at the left side and the right side of the bent channel steel; the protection assembly comprises a detachable railing and two round pipes; the circular tube is vertically fixed on the outer side wall of the bent channel steel, and a bottom plate is fixed at the bottom end of the circular tube; the detachable handrail is provided with a cross rod and two vertical rods, and the top ends of the two vertical rods are respectively and continuously connected with the two ends of the cross rod; in the same group of protection assemblies, the two circular tubes are respectively in one-to-one correspondence with the two vertical rods of the detachable handrail and are matched with the two vertical rods of the detachable handrail, and the bottom ends of the two vertical rods of the detachable handrail can be respectively inserted into the corresponding circular tubes; the two groups of walking components are respectively arranged at the front end and the rear end of the bent channel steel; the walking assembly comprises round steel and two triangular wheels; the triangular wheel comprises two triangular plates, three groups of rubber wheels and pin shafts, the two triangular plates are arranged in parallel, the rubber wheels are positioned between the two triangular plates, the three rubber wheels are respectively arranged at three vertex angles of the triangular plates through the corresponding pin shafts, and the rubber wheels can rotate relative to the triangular plates; the two triangular wheels are respectively arranged at two ends of the round steel and can rotate around the round steel; the round steel is arranged below the bent channel steel, the round steel is longer than the width of the bent channel steel, and the round steel is fixed at the bottom of the bent channel steel along the direction perpendicular to the length of the bent channel steel.
Further, the utility model provides a dolly is used in installation of nuclear power station special door can also have such characteristic: wherein, both ends of the round steel are provided with threads; in the triangular wheel, the centers of the triangular plates are provided with mounting holes which penetrate left and right; the triangular wheel also comprises a bearing, the bearing is fixed between the two triangular plates and is positioned at the position opposite to the centers of the triangular plates, and the central shaft hole of the bearing is aligned with the mounting holes of the triangular plates at the two sides of the central shaft hole; each triangular wheel is provided with two nuts, the nuts are matched with the threads at the end parts of the round steel and are all connected to the end parts of the round steel in a threaded manner; the triangular wheel is rotatably installed at the end part of the round steel through the installation hole and the bearing, and two corresponding nuts are respectively fixed at two sides of the triangular wheel.
Further, the utility model provides a dolly is used in installation of nuclear power station special door can also have such characteristic: wherein, two sets of protection components are along the length direction symmetric distribution of channel-section steel of bending.
Further, the utility model provides a dolly is used in installation of nuclear power station special door can also have such characteristic: wherein, can dismantle the railing still has the middle part horizontal pole, is located the horizontal pole below, and both ends are fixed with the middle part of two montants respectively.
Further, the utility model provides a dolly is used in installation of nuclear power station special door can also have such characteristic: wherein, in the removable railing, the horizontal pole is the fillet with the department that meets of montant.
Further, the utility model provides a dolly is used in installation of nuclear power station special door can also have such characteristic: wherein, the top of pipe is less than the topside of bending the channel-section steel lateral wall.
Further, the utility model provides a dolly is used in installation of nuclear power station special door can also have such characteristic: wherein, the montant of dismantling the railing and the inside cavity phase-match of pipe.
The beneficial effects of the utility model reside in that: the utility model provides a dolly is used in installation of nuclear power station special door compares hydraulic pressure car and transports or artifical transport, and the beneficial effect who has is: light in weight, flexible in structure, simple manufacture, bear the weight of the dynamic height, convenience safe in utilization, application range are wide, can be in the narrow and small, uneven ground of passageway, have barriers region uses such as pipeline, have improved special door and have had special door to transport efficiency, avoid the potential safety hazard that artifical transport special door caused, the practicality is strong.
Drawings
FIG. 1 is a schematic structural view of a trolley for installing a special door of a nuclear power plant;
FIG. 2 is a schematic view of the structure of the roller assembly;
fig. 3 is a side view of a triangular wheel.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in figure 1, the utility model provides a dolly is used in installation of nuclear power station special door, including channel-section steel 1, two sets of protective assembly and two sets of running gear 3 of bending.
The bending channel steel 1 is a strip-shaped groove body with a groove bottom and two opposite side walls, and is formed by bending a steel plate to form a main trolley body of the trolley.
Two groups of protection components are respectively arranged at the left side and the right side of the bent channel steel 1.
The guard assembly comprises a removable balustrade 21 and two tubes 22.
The pipe 22 is welded fastening on the lateral wall of the channel-section steel 1 of bending vertically, and the bottom mounting of pipe 22 has the bottom plate, and is concrete, and the bottom is with the steel sheet shutoff.
The detachable rail 21 is formed by processing a steel pipe and is provided with a cross rod 211 and two vertical rods 212, and the top ends of the two vertical rods 212 are respectively connected with two ends of the cross rod 211 continuously. In the detachable rail 21, the connecting part of the cross bar 211 and the vertical bar 212 is a round angle. Further, the detachable rail 21 further has a middle cross bar 213, which is located below the cross bar 211, and two ends of the detachable rail are respectively fixed to the middle portions of the two vertical bars 212, so that the overall strength of the detachable rail 21 is enhanced, and the protection performance of the detachable rail is enhanced.
In the same group of protection assemblies, the two circular tubes 22 respectively correspond to the two vertical rods 212 of the detachable handrail 21 one by one, and are matched with each other, and the bottom ends of the two vertical rods 212 of the detachable handrail 21 can be respectively inserted into the corresponding circular tubes 22.
Wherein, two sets of protection components are along the length direction symmetric distribution of bending channel-section steel 1.
The top end of the circular tube 22 is lower than the top edge of the side wall of the bent channel steel 1 so as to smoothly place the special door. The vertical rod 212 of the detachable handrail 21 is matched with the inner cavity of the circular tube 22, and the inserted vertical rod 212 is tightly matched with the circular tube 22, so that the detachable handrail 21 is prevented from shaking.
Two groups of walking components 3 are respectively arranged at the front end and the rear end of the bent channel steel 1.
The running assembly 3 comprises a round bar 31 and two triangular wheels 32.
The triangular wheel 32 comprises two triangular plates 321, three groups of rubber wheels 322 and a pin 323. The two triangular plates 321 are arranged in parallel. The set square 321 is made of steel plate and numerical control machining, and round bolt holes are formed in the three end parts. The rubber wheels 322 are located between the two triangular plates 321, the three rubber wheels 322 are respectively installed at three top corners of the triangular plates 321 through corresponding pin shafts 323, and the rubber wheels 322 can rotate relative to the triangular plates 321.
The two triangular wheels 32 are respectively installed at two ends of the round steel 31 and can rotate around the round steel 31.
The specific installation mode of the triangular wheel 32 is as follows: both ends of the round steel 31 are provided with threads. In the triangular wheel 32, mounting holes penetrating left and right are provided in the centers of the triangular plates 321. The triangle wheel 32 also includes a bearing 324. The bearing 324 is fixed between the two triangular plates 321 at the position opposite to the center of the triangular plate 321, and the central shaft hole is aligned with the mounting holes of the triangular plates 321 at the two sides of the central shaft hole. Each triangle wheel 32 is provided with two nuts 325. The nut 325 is matched with the thread at the end part of the round steel 31 and is connected with the end part of the round steel 31 in a threaded mode. The triangular wheel 32 is rotatably mounted on the end of the round bar 31 through the mounting hole and the bearing 324, and the two corresponding nuts 325 are respectively fixed on two sides of the triangular wheel 32.
The round steel 31 is arranged below the bent channel steel 1, the round steel 31 is longer than the bent channel steel 1 in width, and the round steel 31 is welded and fixed at the bottom of the bent channel steel 1 along the direction perpendicular to the length of the bent channel steel 1.
The following description specifically describes an implementation of the trolley by taking installation and construction of the 18 # biological shielding door used in a plant of a unit of nuclear power project No. 5 of the Hongkou Bay in the continuous cloud as an example. Size of No. 18 biological shield door: the width 790mm, height 2220mm, thickness 100mm, it is 1126kg heavy, number 18 biological shield door mounted position is about 86 meters apart from the factory building entry, 36 meters internal passage between factory building and factory building wherein, because this part passageway is narrow, there are pipeline support, obstacles such as electronic box in the wall both sides in addition, the actual clear width of passageway is only about 0.7m, the clear width of partial area is less than 0.6m even, can't use conventional dolly to transport at this moment, can only use the dolly to transport for special door installation, when using, place number 18 biological shield door side-on in bending channel-section steel 1 concave with the mobile crane at the factory building entry earlier, install again and can dismantle railing 21, thereby form final holistic transportation dolly, constructor holds up steady door leaf at both sides and transports in the factory building, in the handling, have the steel pipe, barrier such as wire casing, the triangle wheel of dolly bottom can smoothly cross the barrier. The potential safety hazard defect that can't use large-scale transportation tools such as hydraulic pressure car, can only many people cooperate and carry with the hand jointly because of narrow and small, the ground is uneven in the passageway in the nuclear island factory building has been avoided, can also labour saving and time saving, the installation of improvement special door is transported efficiency jointly.
The utility model discloses a dolly is used in special door installation is not restricted to above-mentioned embodiment, and all adopt the technical scheme who equates the replacement and form, all fall the utility model discloses the protection scope who requires.
Claims (7)
1. The utility model provides a dolly is used in special door installation of nuclear power station which characterized in that:
the device comprises bent channel steel, two groups of protection components and two groups of walking components;
the bending channel steel is a strip-shaped groove body with a groove bottom and two opposite side walls;
the two groups of protection components are respectively arranged at the left side and the right side of the bent channel steel;
the protection assembly comprises a detachable railing and two round pipes;
the circular tube is vertically fixed on the outer side wall of the bent channel steel, and a bottom plate is fixed at the bottom end of the circular tube;
the detachable handrail is provided with a cross rod and two vertical rods, and the top ends of the two vertical rods are respectively and continuously connected with the two ends of the cross rod;
in the same group of protection assemblies, the two circular tubes are respectively in one-to-one correspondence with the two vertical rods of the detachable handrail and are matched with the two vertical rods of the detachable handrail, and the bottom ends of the two vertical rods of the detachable handrail can be respectively inserted into the corresponding circular tubes;
the two groups of walking components are respectively arranged at the front end and the rear end of the bent channel steel;
the walking assembly comprises round steel and two triangular wheels;
the triangular wheel comprises two triangular plates, three groups of rubber wheels and pin shafts, the two triangular plates are arranged in parallel, the rubber wheels are positioned between the two triangular plates, the three rubber wheels are respectively arranged at three vertex angles of the triangular plates through the corresponding pin shafts, and the rubber wheels can rotate relative to the triangular plates;
the two triangular wheels are respectively arranged at two ends of the round steel and can rotate around the round steel;
the round steel is arranged below the bent channel steel, the round steel is longer than the width of the bent channel steel, and the round steel is fixed at the bottom of the bent channel steel along the direction perpendicular to the length of the bent channel steel.
2. The cart for installing the special door of the nuclear power plant as claimed in claim 1, wherein:
wherein, both ends of the round steel are provided with threads;
in the triangular wheel, mounting holes which penetrate through the triangular plate left and right are formed in the centers of the triangular plates;
the triangular wheel also comprises a bearing, the bearing is fixed between the two triangular plates and is positioned at the position opposite to the centers of the triangular plates, and the central shaft hole of the bearing is aligned with the mounting holes of the triangular plates at the two sides of the central shaft hole;
each triangular wheel is provided with two nuts, the nuts are matched with the threads at the end parts of the round steel and are all connected to the end parts of the round steel in a threaded manner;
the triangular wheel is rotatably installed at the end part of the round steel through the installation hole and the bearing, and two corresponding nuts are respectively fixed at two sides of the triangular wheel.
3. The cart for installing the special door of the nuclear power plant as claimed in claim 1, wherein:
wherein, two sets of protection components are along the length direction symmetric distribution of channel-section steel of bending.
4. The cart for installing the special door of the nuclear power plant as claimed in claim 1, wherein:
the detachable handrail is further provided with a middle cross rod which is positioned below the cross rod, and two ends of the detachable handrail are fixed with the middle parts of the two vertical rods respectively.
5. The cart for installing the special door of the nuclear power plant as claimed in claim 1, wherein:
in the detachable railing, the connecting part of the cross rod and the vertical rod is a round angle.
6. The cart for installing the special door of the nuclear power plant as claimed in claim 1, wherein:
and the top end of the round pipe is lower than the top edge of the side wall of the bent channel steel.
7. The cart for installing the special door of the nuclear power plant as claimed in claim 1, wherein:
wherein, the montant of dismantling the railing and the inside cavity phase-match of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021614060.XU CN213168152U (en) | 2020-08-06 | 2020-08-06 | Trolley for installing special door of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021614060.XU CN213168152U (en) | 2020-08-06 | 2020-08-06 | Trolley for installing special door of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213168152U true CN213168152U (en) | 2021-05-11 |
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ID=75798487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021614060.XU Active CN213168152U (en) | 2020-08-06 | 2020-08-06 | Trolley for installing special door of nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213168152U (en) |
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2020
- 2020-08-06 CN CN202021614060.XU patent/CN213168152U/en active Active
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