CN110039277B - Horizontal assembling method for supporting bolt and simple roller frame for assembling - Google Patents
Horizontal assembling method for supporting bolt and simple roller frame for assembling Download PDFInfo
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- CN110039277B CN110039277B CN201910351527.1A CN201910351527A CN110039277B CN 110039277 B CN110039277 B CN 110039277B CN 201910351527 A CN201910351527 A CN 201910351527A CN 110039277 B CN110039277 B CN 110039277B
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- supporting bolt
- supporting
- bolt
- rollers
- support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
Abstract
The invention provides a horizontal assembly method of a supporting bolt and a roller carrier for assembling the supporting bolt. The roller frame comprises a roller for supporting the supporting bolt and a lifting lug arranged on the outer side of the roller so that the lifting equipment can lift the roller frame. The horizontal inclination angle of the horizontally placed supporting bolt and the horizontal inclination angle of the upper support are the same, and the axes are parallel and opposite through the roller carrier; the assembly can be completed by manually rotating the supporting bolt. The roller frame is simple in structure, simple to manufacture, convenient to carry and transport, convenient to use and strong in flexibility, and successfully achieves horizontal suspension assembly of the supporting bolts in limited space and severe environment in a nuclear power plant reactor coolant pump plant under the condition that the surfaces of the large bolts are not damaged.
Description
Technical Field
The invention relates to the field of nuclear power equipment supporting such as a reactor coolant pump in the field of large nuclear power, in particular to equipment and a method for field assembling of supporting bolts with large size and weight, and the horizontal suspension assembly of large bolts is effectively realized.
Background
The nuclear power plant reactor coolant pumps are supported by a plurality of vertical support assemblies, which are generally delivered to the nuclear power plant integrally with large support bolts and nuts assembled in an assembled state at the manufacturing plant. The ideal assembly scheme is as follows: the hoisting ring of the end of the jackbolt is hoisted by using a crane, the jackbolt and the single upper support are properly assembled in a vertical state, and then the assembly parts of the upper support and the jackbolt and the lower support are respectively assembled with leg column components through a bearing, a pin shaft and the like, and finally the component with the length of about 5500mm is formed.
However, in reality, there are cases where the large bolt and the vertical support assembly are in a separate state when the vertical support assembly is delivered to the nuclear power plant. The vertical supporting component has larger structural size and weight, the length reaches about 4600mm, and the weight is about 5000 kg; the weight and the volume of the large supporting bolt are also larger, and the outer wall of the large supporting bolt is provided with a phosphate coating. Two sides of the vertical supporting component are of spherical bearing connection structures, and the large bolt is large in size and weight, a surface phosphate coating is easy to damage, and vertical assembly cannot be implemented in a limited space of a nuclear power plant; and the conventional horizontal assembly has the risk of damaging the surface phosphate coating of the large bolt. Meanwhile, the nuclear power plant has more site limitation, and a large space site cannot be reserved for repeated transfer assembly of dozens of vertical bearing assemblies.
Therefore, there is a strong need for an assembly device that can be used to assemble large support bolts and vertical bearing assemblies on-site in a confined space, and which can be manufactured in a short time and portable to a nuclear power plant for use.
Based on the problems, the invention provides a field horizontal assembly method of a support bolt and a simple roller frame for assembly, so as to realize field horizontal assembly of the support bolt and a vertical bearing assembly in a limited space.
Disclosure of Invention
In order to solve the above problems, the present inventors have conducted intensive studies and, as a result, have found that: the roller frame is movably arranged, so that the horizontal inclination angle and the axis of the supporting bolt can be conveniently adjusted; the roller carrier is provided with the rollers, so that the nondestructive rotation of the supporting bolt can be easily realized; the roller frame and the method for assembling the supporting bolt by using the roller frame are simple, convenient and strong in flexibility, and the horizontal suspension assembly of the supporting bolt is successfully realized in the limited space and severe environment in a nuclear power plant reactor coolant pump plant without damaging the surface of a large bolt, so that the invention is completed.
The object of the present invention is to provide the following:
in a first aspect, the present invention provides a horizontal assembly method for a support bolt, comprising the steps of:
A. horizontally placing a supporting bolt 4 and an upper support 7, and adjusting the supporting bolt 4 and the upper support 7 to ensure that the horizontal inclination angle of the axis of the supporting bolt 4 is the same as that of the screw hole of the upper support 7;
B. adjusting the supporting bolt 4 and the upper support 7 to enable the axis of the supporting bolt 4 to be parallel to the axis of a screw hole of the upper support 7;
C. adjusting the supporting bolt 4 to enable the mounting end of the supporting bolt 4 to be aligned with the screw hole of the upper support 7;
D. and manually rotating the supporting bolt 4 to enable the mounting end of the supporting bolt 4 to be in fit connection with the threads at the screw hole port of the upper support 7, and finishing the assembly and the introduction.
Wherein, the supporting bolt 4 is placed on the movable support, and the horizontal inclination angle of the supporting bolt 4 is adjusted by adjusting the horizontal inclination angle of the movable support.
The movable bracket is horizontally rotated so that the axis of the supporting bolt 4 is parallel to the axis of the screw hole of the upper support 7.
Furthermore, when the supporting bolt 4 is manually rotated, the inclination angle of the axis of the supporting bolt 4 is continuously adjusted according to the change of the rotating force, so that the axis of the supporting bolt 4 and the axis of the screw hole of the upper support 7 are constantly kept centered.
After the movable support is lifted by the lifting equipment, the horizontal inclination angle and the axis direction of the supporting bolt 4 are monitored and adjusted by using the chain block 9 and according to the inclinometer, so that the central axis is adjusted in time in the centering, introducing and assembling processes.
The movable support is a roller frame for assembly and comprises rollers 1 arranged on a bottom plate 3 in pairs and lifting lugs 2 arranged on the outer sides of the rollers 1.
Wherein, the rollers 1 arranged in pairs are provided with a plurality of groups;
in each pair of rollers 1, the rollers 1 are separated by a distance which is smaller than the diameter of the supporting bolt 4, and the axes are parallel;
the supporting bolt 4 is placed between the plural sets of the paired rollers 1, the rollers 1 support the supporting bolt 4, and the supporting bolt 4 is rotated when the supporting bolt 4 is manually rotated.
In a second aspect, the present invention provides a roller frame for assembling a support bolt, which assembles the support bolt using the above method, the roller frame comprising,
and the lifting lugs 2 are arranged on the outer sides of the rollers 1 so that the roller frame can be lifted by the lifting equipment.
Wherein, the rollers 1 arranged in pairs are provided with a plurality of groups;
in each pair of rollers 1, the rollers 1 are separated by a distance which is smaller than the diameter of the supporting bolt 4, and the axes are parallel;
the supporting bolts 4 are placed between the plural sets of the paired rollers 1, the rollers 1 support the supporting bolts 4, and the supporting bolts 4 are rotated when manually rotated.
The lifting lugs 2 are symmetrically arranged on the periphery of the bottom plate 3;
the lifting lug 2 is fixedly connected with the bottom plate 3.
Preferably, the roller 1 is in flexible contact with the supporting bolt 4, and preferably, a rubber, an adhesive tape or a cleaning cloth product is arranged at the contact position of the roller 1 and the supporting bolt 4.
According to the roller frame and the method for field assembly of the supporting bolt, provided by the invention, the following beneficial effects are achieved:
(1) the roller carrier is simple in structure, large in reconstruction space, not easy to damage and capable of being repeatedly used; the portable type multifunctional trolley is convenient to carry, can be carried to different places for use in a long distance, and is not limited by vehicles.
(2) The roller frame is few in material, small in welding amount, simple and quick to manufacture, short in manufacturing preparation period, capable of fully utilizing inventory allowance, and free of special requirements for other materials except the roller.
(3) The roller carrier is convenient to carry and transport, small in size and light in weight, and an operator can assemble, operate and adjust the roller carrier lightly and conveniently during use without large space and large moving components.
(4) The roller frame is high in using flexibility, large bolts can be easily rotated manually, and horizontal suspension assembly of the supporting bolts is successfully achieved in severe environment of a nuclear power plant under the condition that the surfaces of the large bolts are not damaged.
Drawings
FIG. 1 shows a schematic view of a bolt and vertical support assembly connection;
FIG. 2 is a schematic view showing a construction of a roller frame for field assembly of a stay bolt;
FIG. 3 shows a side view of FIG. 2;
fig. 4 shows a schematic view of the installation of the roller frame for field assembly of the supporting bolt, wherein A is a schematic view of the installation front view, and B is a schematic view of the installation test.
The reference numbers illustrate:
1-roller
2-lifting lug
3-base plate
4-supporting bolt
5-nut
6-support leg
7-upper support
8-lower support
9-hand chain block
Detailed Description
The features and advantages of the present invention will become more apparent and appreciated from the following detailed description of the invention, as illustrated in the accompanying drawings.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The present invention is described in detail below.
The nuclear power plant reactor coolant pump is supported by a plurality of vertical support assemblies, as shown in fig. 1, which include support legs 6, an upper support 7, and a lower support 8. The upper part of each vertical supporting component is fixedly connected with a pump shell of a main pump by a supporting bolt 4 and a nut 5, and the lower part of each vertical supporting component is fixed on a concrete foundation floor by 4 prestressed anchoring pull rods. The upper end and the lower end of the supporting leg column 6 are connected with an upper support 7 and a lower support 8 through spherical hinge bearings. The vertical support assembly is a component that bears the weight of the entire nuclear power plant.
The vertical support assembly is approximately 4600mm in length, and after the support bolts 4 are properly assembled with the one-piece upper support 7, the support leg posts 6, etc. are assembled to finally form an assembly approximately 5500mm long and weighing approximately 5000 kg. Wherein the length of the supporting bolt 4 is approximately 1 meter, the diameter reaches phi 220mm, the weight is about 260kg, and the outer wall is provided with a phosphate coating as a protection.
Because the structural size and the weight of the supporting bolt 4 and the vertical supporting assembly are both large, and the two sides of the vertical supporting assembly are of spherical bearing connection structures, the risk of vertical assembly of the supporting bolt 4 and the vertical supporting assembly in the plant space of the nuclear power station, particularly the plant space of a reactor coolant pump and under the existing conditions is extremely high, the difficulty is extremely high, the implementation is basically impossible, a phosphorization layer on the surface of the supporting bolt 4 is easily damaged, the service life of the vertical supporting assembly is damaged, and the operation safety of a nuclear power plant is influenced.
In a plant of a reactor coolant pump of a nuclear power station, the safety of equipment for installation is ensured, and the safety of other equipment in the plant is also ensured.
Through multiple researches, the invention provides a horizontal assembly method of a supporting bolt, which comprises the following steps:
A. horizontally placing a supporting bolt 4 and an upper support 7, and adjusting the supporting bolt 4 and the upper support 7 to ensure that the horizontal inclination angle of the axis of the supporting bolt 4 is the same as that of the screw hole of the upper support 7;
B. adjusting the supporting bolt 4 and the upper support 7 to enable the axis of the supporting bolt 4 to be parallel to the axis of a screw hole of the upper support 7;
C. adjusting the supporting bolt 4 to enable the mounting end of the supporting bolt 4 to be aligned with the screw hole of the upper support 7;
D. and manually rotating the supporting bolt 4 to enable the mounting end of the supporting bolt 4 to be in fit connection with the threads at the screw hole port of the upper support 7, and finishing the assembly and the introduction.
In a preferred embodiment, the supporting bolt 4 is horizontally placed on the movable bracket, and the horizontal inclination angle of the supporting bolt 4 is adjusted by adjusting the horizontal inclination angle of the movable bracket.
The upper support 7 can be placed on the movable support or the fixed support, preferably on the fixed support, as required; when the upper support 7 is pushed and pulled by slight external force, the upper support 7 cannot move under the action of gravity and friction force of the upper support 7 under the action of the rotation and the pushing of the supporting bolt 4.
In another embodiment, the upper support 7 can be not moved, and the position of the supporting bolt 4 on the upper support 7 can be freely adjusted according to the actual placing position of the upper support 7 and can be centered with the upper support 7.
Preferably, the supporting bolt 4 is placed on the movable bracket, and the supporting bolt 4 is adjusted to be horizontal by adjusting the horizontal inclination angle of the movable bracket. Accordingly, the upper support 7 is placed on the fixed bracket and adjusted to be horizontal.
When the upper support 7 cannot be horizontally adjusted, the upper support 7 has a certain inclination angle, and the inclination angle of the supporting bolt 4 can be adjusted to be the same as the inclination angle of the upper support 7.
In the present invention, the fixing bracket refers to a supporting platform or a supporting frame capable of supporting the upper support 7, as long as the fixing bracket can support the upper support 7. When the fixing bracket is used, supports with different thicknesses can be padded under the upper support 7 to adjust the horizontal inclination angle of the upper support 7.
Preferably, when the horizontal inclination angles of the supporting bolt 4 and the upper support 7 are adjusted to be the same, the direction of the axis of the supporting bolt 4 is adjusted so that the axis of the supporting bolt 4 and the axis of the screw hole of the upper support 7 are parallel.
In a preferred embodiment, the mobile carriage is rotated horizontally, so that the axis of the supporting bolt 4 is parallel to the axis of the threaded hole of the upper support 7.
The axis of the supporting bolt 4 and the axis of the screw hole of the upper support 7 are adjusted to be parallel, so that the supporting bolt 4 can easily rotate into the screw hole of the upper support 7 in the subsequent installation process, and the phosphate coating on the surface of the supporting bolt 4 is not damaged.
Further, the supporting bolt 4 is adjusted to center the mounting end of the supporting bolt 4 and the screw hole of the upper bracket 7, so as to facilitate the rotational mounting of the supporting bolt 4 with the upper bracket 7.
In a preferred embodiment, the mobile carriage supporting the supporting bolt 4 is adjusted vertically and/or horizontally, centering the mounting end of the supporting bolt 4 and the threaded hole of the upper support 7 without changing the horizontal inclination of the supporting bolt 4 and keeping the axis of the supporting bolt 4 parallel to the axis of the threaded hole of the upper support 7.
And manually rotating the supporting bolt 4 to enable the mounting end of the supporting bolt 4 to be in fit connection with the threads at the threaded port of the screw hole of the upper support 7, so that the assembly and the introduction are completed.
Preferably, during the process of manually rotating the supporting bolt 4, the inclination angle of the axis of the supporting bolt 4 is continuously adjusted according to the change of the rotating force, so that the axis of the supporting bolt 4 is constantly kept aligned with the axis of the screw hole of the upper support 7, and the assembly is completed.
Since the mounting end of the supporting bolt 4 is opposite to the screw hole of the upper bracket 7 and the axes of the two are corresponding to each other, the supporting bolt 4 and the upper bracket 7 can be screwed well without abrasion to the surface of the supporting bolt 4 when the supporting bolt 4 is rotated manually.
In the present invention, the movable bracket is particularly referred to as a roller frame for mounting a support bolt, which includes, as shown in fig. 2,
and the lifting lugs 2 are arranged on the outer sides of the rollers 1 so that the roller frame can be lifted by the lifting equipment.
The base plate 3 is preferably a flat plate material having strength and hardness sufficient to support the support bolts 4 without deformation, and is preferably made of metal.
Wherein, the rollers 1 are arranged in parallel in pairs and are provided with a plurality of groups. The number of sets of rollers 1 can be set according to the length of the supporting bolt 4 and the requirement. The rollers 1 are at least arranged into 2 groups, and preferably 2-3 groups.
Preferably, the rollers 1 are extended and aligned along the axis of the supporting bolt 4, as shown at a in fig. 4, so that the supporting bolt 4 is horizontally placed between the sets of rollers.
Preferably, in each pair of rollers 1, the rollers 1 are separated by a distance less than the diameter of the supporting bolt 4 and the axes are parallel; thus, the supporting bolts 4 can be placed between the plural sets of the paired rollers 1, and the supporting bolts 4 are supported by the rollers 1.
Thus, when receiving an external force, in particular, manually turning the supporting bolt 4, the supporting bolt 4 receives a clockwise or counterclockwise rotation force by the external force; since the roller 1 supporting the supporting bolt 4 is also easily rotated by an external force, the supporting bolt 4 applies a force in the same direction to the roller 1 after being stressed, so that the roller 1 and the supporting bolt 4 rotate in the same direction, as shown in fig. 4B. The friction force between the roller 1 and the supporting bolt 4 is very small along with the rotation of the roller 1, so that the supporting bolt 4 with extremely heavy weight can be easily rotated by manpower to be in threaded connection with the upper support 7, and the large bolt can be manually rotated.
In order to further reduce the friction between the roller 1 and the supporting bolt 4, the diameter of the roller 1 is preferably smaller than the diameter of the supporting bolt 4.
Preferably, as the support bolt 4 is screwed into the thread, the inclination of the support bolt 4 changes, and the axis of the support bolt 4 is monitored and adjusted to be always aligned with the axis of the upper seat 7, so as to avoid damage to the bolt thread due to friction and increased force.
Preferably, an inclinometer is used for auxiliary detection and real-time monitoring of the horizontal inclination angle of the supporting bolt 4; the horizontal inclination of the supporting bolt 4 is adjusted using a chain block 9.
In a preferred embodiment, the diameter of the roller 1 is 1/5-1/2, preferably 1/5-1/3 of the diameter of the support bolt 4, so that the contact area between the roller 1 and the support bolt 4 can be further reduced, and the friction force between the roller 1 and the support bolt 4 is reduced; and simultaneously, the stable supporting force of the roller 1 on the supporting bolt 4 can be kept.
In order to protect the surface of the supporting bolt, the roller 1 is in flexible contact with the supporting bolt 4, and preferably, a rubber, adhesive tape or a cleaning cloth product is arranged at the contact position of the roller 1 and the supporting bolt 4.
In a preferred embodiment, the contact area between the roller 1 and the supporting bolt 4 is made of rubber, which ensures that the phosphate coating on the outer wall of the supporting bolt 4 is not damaged when the supporting bolt 4 is rotated.
The lifting lugs 2 arranged in the roller carrier for assembling the supporting bolts are used for fixing lifting ropes, so that the lifting equipment can move the roller carrier through the lifting ropes conveniently.
The hoisting equipment is mechanical equipment which can hoist the supporting bolt 4 and can move, comprises a crane, a forklift or a crown block, and is freely selected without limitation; in the installation plant of the main pump in the nuclear power plant, for example, the hoisting equipment can be a forklift with extremely small occupied space.
As shown in fig. 3, the lifting lug 2 is arranged outside the roller 1, preferably on the periphery of the bottom plate 3; more preferably, the lifting lugs 2 are symmetrically arranged on the periphery of the bottom plate 3; thus, it is easier to balance and stabilize the base plate 3 when the roller frame is lifted by the lifting device.
Preferably, the lifting lug 2 is fixedly connected with the bottom plate 3.
After the movable support is lifted by the lifting equipment, the horizontal inclination angle and the axial direction of the supporting bolt 4 are adjusted by using the chain block 9 and the inclinometer.
In a preferred embodiment, the roller frame is provided with 4 lifting lugs 2, so that the lifting equipment, the chain block 9 and the inclinometer can be conveniently matched, the horizontal inclination angle of the supporting bolt 4 can be detected in an auxiliary manner, monitored in real time and adjusted, and the axis of the supporting bolt 4 is ensured to be parallel to the axis of the corresponding screw hole of the upper support 7.
Therefore, the present invention also provides a roller frame for assembling a supporting bolt, which assembles the supporting bolt 4 by using the method, and comprises rollers 1 arranged in pairs on a base plate 3 and lifting lugs 2 arranged outside the rollers 1.
The roller frame for assembling the supporting bolt is simple to manufacture, the lifting lug 2 and the bottom plate 3 are not limited by materials except the roller, the structure is not limited, and the inventory allowance can be fully utilized as long as the lifting lug is regular and meets the bearing requirement and the bolt use requirement.
The supporting bolt assembly is with gyro wheel frame convenient to use, and small in size weight is little, and the operator can use at any time according to the perpendicular supporting component locating position of nuclear power plant as required in treating the less space of assembly end the assembly of supporting bolt 4 is implemented to the gyro wheel frame, and assembly, operation regulation are light and handy convenient, need not to remove the subassembly of about 5000 kg.
The roller frame for assembling the supporting bolt is simple and quick to manufacture, convenient to carry and transport, capable of being recycled and large in reconstruction space, and meanwhile perfectly solves the problem that the nuclear power plant cannot assemble the supporting bolt on site, and successfully guarantees the product requirements of the nuclear power plant; the consumption of manpower resources is greatly reduced, and only one operator and one auxiliary operator can finish the installation of the vertical supporting component; the risk of damage to the bearing bolt phosphate coating in the assembling process is avoided, and the product quality is guaranteed.
Through the use of the roller frame matched with the support bolt for assembly, the horizontal assembly of the support bolt is realized, various difficulties in limited space installation of a main pump plant of a nuclear power plant are overcome, and the vertical support assembly and the support bolt cannot be properly assembled.
The invention has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to be construed in a limiting sense. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present invention and its embodiments without departing from the spirit and scope of the present invention, which fall within the scope of the present invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. A horizontal support bolt assembly method, comprising the steps of:
A. horizontally placing a supporting bolt (4) and an upper support (7), and adjusting the supporting bolt (4) and the upper support (7) to ensure that the horizontal inclination angle of the axis of the supporting bolt (4) is the same as that of the screw hole of the upper support (7);
B. adjusting the supporting bolt (4) and the upper support (7) to enable the axis of the supporting bolt (4) to be parallel to the axis of a screw hole of the upper support (7);
C. adjusting the supporting bolt (4) to enable the mounting end of the supporting bolt (4) to be aligned with the screw hole of the upper support (7);
D. the supporting bolt (4) is manually rotated to ensure that the mounting end of the supporting bolt (4) is in matched connection with the thread at the screw hole port of the upper support (7) to finish the assembly and the introduction,
the supporting bolt (4) is placed on the movable support, and the horizontal inclination angle of the supporting bolt (4) is adjusted by adjusting the horizontal inclination angle of the movable support;
the movable bracket is horizontally rotated to enable the axis of the supporting bolt (4) to be parallel to the axis of the screw hole of the upper support (7),
after the movable support is hoisted by hoisting equipment, the horizontal inclination angle and the axial direction of the supporting bolt (4) are monitored and adjusted by using a chain block (9) according to an inclinometer so as to lead the central axis to be adjusted in time in the centering, introducing and assembling processes,
the movable support is a roller frame for assembly and comprises rollers (1) which are arranged on a bottom plate (3) in pairs and lifting lugs (2) which are arranged on the outer sides of the rollers (1).
2. The assembly method according to claim 1, characterized in that when the supporting bolt (4) is manually rotated, the inclination angle of the axis of the supporting bolt (4) is continuously adjusted according to the change of the rotating force, so that the axis of the supporting bolt (4) and the axis of the screw hole of the upper support (7) are constantly kept centered.
3. The assembly method according to claim 1, characterized in that said rollers (1) arranged in pairs are provided with a plurality of groups;
in each pair of rollers (1), the rollers (1) are separated by a distance which is smaller than the diameter of the supporting bolt (4) and the axes are parallel;
the supporting bolts (4) are placed between the plurality of sets of paired rollers (1), the rollers (1) support the supporting bolts (4), and the supporting bolts (4) are rotated when the supporting bolts (4) are manually rotated.
4. The assembly method according to claim 1, wherein the assembly roller frame includes,
rollers (1) which are provided on the base plate (3) in pairs and support the support bolts (4) and rotate the support bolts (4) under external force, and,
the lifting lugs (2) are arranged on the outer sides of the rollers (1) so that the lifting equipment can lift the roller frame.
5. Assembly method according to claim 4, characterized in that said rollers (1) arranged in pairs are provided with a plurality of groups;
in each pair of rollers (1), the rollers (1) are separated by a distance which is smaller than the diameter of the supporting bolt (4) and the axes are parallel;
the supporting bolts (4) are placed between the plurality of sets of paired rollers (1), the rollers (1) support the supporting bolts (4), and the supporting bolts (4) are rotated when the supporting bolts (4) are manually rotated.
6. An assembly method according to claim 4, characterized in that the lifting lugs (2) are symmetrically arranged on the periphery of the base plate (3);
the lifting lug (2) is fixedly connected with the bottom plate (3).
7. Assembly method according to claim 4, wherein the roller (1) is in flexible contact with a supporting bolt (4).
8. Assembly method according to claim 7, wherein the contact between the roller (1) and the supporting bolt (4) is provided with a rubber, adhesive tape or cleaning cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910351527.1A CN110039277B (en) | 2019-04-28 | 2019-04-28 | Horizontal assembling method for supporting bolt and simple roller frame for assembling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910351527.1A CN110039277B (en) | 2019-04-28 | 2019-04-28 | Horizontal assembling method for supporting bolt and simple roller frame for assembling |
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| Publication Number | Publication Date |
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| CN110039277A CN110039277A (en) | 2019-07-23 |
| CN110039277B true CN110039277B (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910351527.1A Active CN110039277B (en) | 2019-04-28 | 2019-04-28 | Horizontal assembling method for supporting bolt and simple roller frame for assembling |
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| US3745599A (en) * | 1971-07-28 | 1973-07-17 | Central Screw Co | Method and apparatus for the assembly of screw blanks and washers |
| CN101633113A (en) * | 2008-07-24 | 2010-01-27 | 上海电气电站设备有限公司 | Tool and method for assembling spindle head and center pull rod of gas turbine |
| CN204913185U (en) * | 2015-09-11 | 2015-12-30 | 吉宝（南通）船厂有限公司 | Large -scale pipeline support frame with adjustable |
| CN205342382U (en) * | 2016-01-21 | 2016-06-29 | 武汉力地液压设备有限公司 | Large -scale horizontal pneumatic cylinder removes fitting work platform device |
| CN205520291U (en) * | 2016-04-21 | 2016-08-31 | 山西阳煤化工机械（集团）有限公司 | Small -size gyro wheel frame suitable for take over welding |
| CN106541254A (en) * | 2015-09-23 | 2017-03-29 | 中航商用航空发动机有限责任公司 | Butt-joint mounting device |
-
2019
- 2019-04-28 CN CN201910351527.1A patent/CN110039277B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3745599A (en) * | 1971-07-28 | 1973-07-17 | Central Screw Co | Method and apparatus for the assembly of screw blanks and washers |
| CN101633113A (en) * | 2008-07-24 | 2010-01-27 | 上海电气电站设备有限公司 | Tool and method for assembling spindle head and center pull rod of gas turbine |
| CN204913185U (en) * | 2015-09-11 | 2015-12-30 | 吉宝（南通）船厂有限公司 | Large -scale pipeline support frame with adjustable |
| CN106541254A (en) * | 2015-09-23 | 2017-03-29 | 中航商用航空发动机有限责任公司 | Butt-joint mounting device |
| CN205342382U (en) * | 2016-01-21 | 2016-06-29 | 武汉力地液压设备有限公司 | Large -scale horizontal pneumatic cylinder removes fitting work platform device |
| CN205520291U (en) * | 2016-04-21 | 2016-08-31 | 山西阳煤化工机械（集团）有限公司 | Small -size gyro wheel frame suitable for take over welding |
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| Publication number | Publication date |
|---|---|
| CN110039277A (en) | 2019-07-23 |
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