CN110640685B - Air duct bolt fastening device for narrow space and construction method thereof - Google Patents
Air duct bolt fastening device for narrow space and construction method thereof Download PDFInfo
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- CN110640685B CN110640685B CN201910910525.1A CN201910910525A CN110640685B CN 110640685 B CN110640685 B CN 110640685B CN 201910910525 A CN201910910525 A CN 201910910525A CN 110640685 B CN110640685 B CN 110640685B
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 44
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 41
- 230000000149 penetrating effect Effects 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 238000009423 ventilation Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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Abstract
The invention discloses a fastening device for a narrow space air duct bolt and a construction method thereof, wherein the fastening device comprises a mounting box, a group of bevel gears connected inside the mounting box, a transverse shaft rod connected to the outer end part of the transverse bevel gears, a vertical shaft rod connected to the end part of the vertical bevel gears, an extension rod and a fixed rod connected to the outer end part of the transverse shaft rod, a connecting shaft rod and a bolt sleeve head connected to the lower end part of the vertical shaft rod, and a nut placing piece positioned below the bolt sleeve head; the bottom surface of the mounting box is detachably connected with a illuminator and a miniature camera; the mounting box is connected with the reinforcing rod below one side of the transverse shaft rod. According to the invention, the illuminator and the miniature camera are arranged, so that accurate alignment of the bolt is facilitated; by arranging the extension rod and the fixed rod, the construction space is saved; the installation of the reinforcing rods is beneficial to sharing the weight of the installation box in the construction process and reducing the vertical deviation of the installation box in the construction process; through the arrangement of the nut placing piece and the limiting clamp plate, the nut is convenient to align and install.
Description
Technical Field
The invention belongs to the field of constructional engineering, and particularly relates to a bolt fastening device for an air duct in a narrow space and a construction method thereof.
Background
With the implementation of new fire protection design specifications, ventilation system design building ventilation shafts all require lining air pipes. However, due to the limitation of the structural form, one or two side walls of the ventilation shaft are cast-in-situ concrete walls in actual engineering; the problem that the air pipe close to one side of the structural wall body, in particular the air pipe connecting bolt with longer side length and narrow space can not be fastened is caused.
Because the fastening of the connecting bolt cannot be completed by adopting the traditional tool, the air pipe connecting mode must be replaced or reinforcing measures must be taken at the inner side, so that the cost and the construction difficulty are increased, the system installation time is prolonged, the construction period is influenced, the operation process in the air pipe is high in danger, and the potential safety hazard exists. Some are fastened by a fastening tool, but under the influence of factors such as darker light and bolt hole alignment, the construction reliability is reduced, and the working hours are wasted; in addition, for the long tuber pipe in limit length, need change extension member, complex operation and construction stability are poor.
Disclosure of Invention
The invention provides a fastening device for an air duct bolt in a narrow space and a construction method thereof, which are used for solving the technical problems of accurate alignment in fastening of the air duct bolt in the narrow space, extension installation in a long and narrow space, stability in the process of fastening and installing the bolt, and the like.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A bolt fastening device for an air duct in a narrow space comprises a mounting box, a group of bevel gears connected in the mounting box in a transverse and vertical right angle manner, a transverse shaft rod connected to the outer end part of the transverse bevel gears, a vertical shaft rod connected to the end part of the vertical bevel gears, an extension rod and a fixed rod connected to the outer end part of the transverse shaft rod, a connecting shaft rod and a bolt sleeve head connected to the lower end part of the vertical shaft rod, and a nut placing piece positioned below the bolt sleeve head;
the nut placing piece comprises a placing rod and a placing plate detachably connected to one end of the placing rod, and a placing hole is formed in the placing plate corresponding to the size of the nut;
The vertical bevel gear is positioned at the lower side of the transverse bevel gear and is connected with the transverse bevel gear in a meshed manner; the transverse shaft rod and the vertical shaft rod penetrate through the mounting box and are in rotary connection with the mounting box;
The mounting box is a rectangular box, and the bottom surface of the mounting box is detachably connected with a illuminator and a miniature camera; the mounting box is connected with a reinforcing rod below one side of the transverse shaft rod, and the outer end part of the reinforcing rod is connected with a limiting plate;
The extension rod is connected with the fixed rod in a telescopic way, and the outer end part of the fixed rod is connected with a limit bearing; the limit bearing and the limit plate are integrally connected and connected with the lower support platform through the connecting column;
The support column is connected below the support platform, and the bottom end of the support column is connected with the base connected with the ground; and the support columns are also connected with limiting clamping plates, and the limiting clamping plates are correspondingly connected with the placing rods in a penetrating way.
Further, the vertical shaft rod is vertically connected in a through length mode in the mounting box, and the lower side of the vertical shaft rod penetrates out of the mounting box and is connected with the connecting shaft rod through a connector; the transverse shaft rod is connected with the extension rod through a connector; the extension rod is provided with scales.
Further, the inside of the bolt sleeve head is connected with a magnet, and the size of the groove inside the bolt sleeve head is adapted to the size of the top end of the bolt.
Further, the limit bearings are arranged at intervals in the long upward direction of the fixed rod and are rotationally connected with the fixed rod; the limiting plates are arranged at intervals in the long upward direction of the reinforcing rod and are connected with the reinforcing rod in a penetrating way; the limit bearing and the limit plate are connected up and down and are respectively arranged at least two.
Further, the reinforcing rod is a hollow pipe and is spliced through a sleeve of the reinforcing rod; the inside insulating layer that is provided with of reinforcing rod and cross-under illuminator and miniature camera's wire.
Furthermore, the limiting plate is a rectangular plate, and an arc notch is correspondingly connected with the limiting bearing at the upper part of the rectangular plate; the lower part of the limiting plate is connected with a connecting column, and the lower end of the connecting column is detachably connected with a supporting platform.
Further, the supporting platform is a rectangular piece, the center of the bottom surface of the supporting platform is connected with a supporting column, and the supporting column is formed by splicing supporting column sleeves; the bottom of the support column is also connected with a diagonal bracing with the base.
Further, the limiting clamp plate is a rectangular slat, and a hole for penetrating and connecting the rod is formed in the support column where the limiting clamp plate is located; the limiting clamping plates are arranged on the upper side and the lower side of the hole in parallel.
Furthermore, the placing rod is spliced through the placing rod sleeve, and one end of the placing rod, which is not connected with the placing plate, is inserted into the limiting clamping plate.
Further, the construction method for the narrow space air duct bolt fastening device comprises the following specific steps:
Firstly, manufacturing an extension rod and a fixed rod according to the installation length of an actual bolt to be fastened after the air pipe is constructed, wherein the extension and contraction of the extension rod and the fixed rod are controlled by hydraulic pressure; determining the height of the limit bearing according to the height of the bolt to be fastened; manufacturing a nut placing piece according to the size and the installation length of the nut;
Step two, manufacturing an installation box and a bevel gear, arranging the bevel gear at a right angle according to the design, and testing the fluency of engagement rotation of the bevel gear; the illuminator and the miniature camera are arranged at the lower part of the installation box, the reinforcing rod is arranged at the side surface, and the wires of the illuminator and the miniature camera are connected into the reinforcing rod from the inside of the installation box in a penetrating way and finally connected with an external power supply and a display;
Step three, manufacturing a limit bearing, a limit plate and a limit clamping plate, integrally connecting the limit bearing and the limit plate and pre-connecting the limit bearing and the limit plate on a support platform, and connecting the limit clamping plate on a support column of a section;
Step four, installing a base, assembling a support column on the base, and determining the position of a limiting clamp plate on the support column according to the position of a bolt to be installed at the air pipe; the support platform, the connecting column, the limiting plate and the limiting bearing are arranged at the design positions corresponding to the fixing rod and the reinforcing rod;
Step five, connecting the lower end of a vertical shaft rod in the mounting box with a bolt sleeve head and connecting the lower end of the vertical shaft rod with a transverse shaft rod through a magnet connecting bolt, connecting an extension rod with the transverse shaft rod and extending the extension rod under hydraulic control, primarily reaching the position of a bolt to be fastened, finely adjusting the position of the bolt according to an image transmitted by a miniature camera to enable the position of the bolt to be aligned with a reserved bolt hole, and starting a illuminator if light is dark;
Step six, placing corresponding nuts in the placing plate, penetrating the placing rod into the limiting clamping plate for vertical positioning; after reaching a designated position along the lower part of the bolt to be fastened, the horizontal position of the placing plate is finely adjusted through the image transmitted by the miniature camera until the nut is aligned with the bolt above;
Step seven, connecting an electric rotating machine or manually rotating the outer end part of the fixed rod, so that a bolt penetrates into a nut in the placing plate; along with the screwing of the bolts, the mounting box gradually falls, and at the moment, the connection length of the support column sleeve under the support platform is adjusted to adapt to the falling height of the mounting box;
Step eight, after the bolt installation is completed, lifting a support column under the support platform and contracting a bolt of an extension rod connected with a next installation point, and extending towards the next installation point after the connection is completed; and the reinforcing rod and the placing rod are spliced and lengthened or shortened by the length of the extension rod corresponding to the sleeve connected with each reinforcing rod and the placing rod until the fastening and the installation of all bolts are completed.
The beneficial effects of the invention are as follows:
1) According to the invention, the illuminator and the miniature camera are arranged at the bottom of the mounting box, so that accurate alignment of the fastening bolt is facilitated when light and sight are blocked in a long and narrow space;
2) According to the invention, through the arrangement of the extension rod and the fixed rod, the bolt fastening operation can be performed on the premise of not replacing the rod body, so that the construction space is saved, and the preliminary positioning is ensured by the arrangement of the scales on the extension rod, so that the construction time is saved; the limiting bearing arranged on the outer side of the fixed rod is beneficial to keeping the stability of the fixed rod and the extension rod in the extension process or the fastening process;
3) According to the invention, through the arrangement of the reinforcing rods, the weight of the mounting box in construction is shared, and the vertical deviation of the mounting box in the construction process is reduced; in addition, the reinforcing rod can also be used for connecting wires of the illuminator and the miniature camera, so that the occupied space of the whole device is saved;
4) The nut placing piece and the limiting clamp plate are arranged, so that the nut is convenient to align and install, the application of the limiting clamp plate is convenient for stability in the nut fastening process on one hand, and positioning is not needed again after the placing rod is assembled and lengthened on the other hand, so that the construction time is saved;
During construction, the support column and other components can be designed and assembled in advance according to the position of the bolt fastening required in the air pipe, so that the fine adjustment on site is convenient, the repeated use is convenient, the construction time and the construction cost are greatly saved, and the construction quality is effectively improved; additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary object and other advantages of the invention may be realized and attained by means of the instrumentalities and particularly pointed out in the specification.
Drawings
FIG. 1 is a construction schematic diagram of a bolt tightening device for an air duct in a narrow space;
FIG. 2 is a schematic side view of the connection of the bevel gear to the mounting box;
FIG. 3 is a schematic top view of the connection of the bevel gear to the mounting case;
FIG. 4 is a schematic vertical cross-section of a stop bearing, stop plate and connecting post;
Fig. 5 is a schematic view of a nut placement member.
Reference numerals: 1-bevel gear, 2-horizontal shaft, 3-vertical shaft, 4-mounting box, 5-connector, 6-extension rod, 7-fixed rod, 8-connecting shaft, 9-bolt sleeve, 10-magnet, 11-bolt, 12-nut, 13-nut placement piece, 131-placement plate, 132-placement hole, 133-placement rod, 134-placement rod sleeve, 14-reinforcement rod, 15-reinforcement rod sleeve, 16-limit bearing, 17-limit plate, 171-limit plate body, 172-limit plate hole, 18-connecting column, 19-support platform, 20-support column, 21-support column sleeve, 22-limit clamp plate, 23-diagonal brace, 24-base, 25-illuminator, 26-miniature camera.
Detailed Description
As shown in fig. 1, the air duct bolt fastening device for the narrow space comprises a mounting box 4, a group of bevel gears 1 connected in the mounting box 4 in a transverse and vertical right angle mode, a transverse shaft rod 2 connected to the outer end portion of the transverse bevel gears 1, a vertical shaft rod 3 connected to the end portion of the vertical bevel gears 1, an extension rod 6 and a fixing rod 7 connected to the outer end portion of the transverse shaft rod 2, a connecting shaft rod 8 and a bolt sleeve 9 connected to the lower end portion of the vertical shaft rod 3, and a nut placing piece 13 positioned below the bolt sleeve 9.
In the embodiment, the installation box 4 is a rectangular steel box, the installation box 4 is made of a thin-wall steel plate in a double-layer mode, and the strength of the steel plate can bear the weight of the internal bevel gear 1 and the vertical shaft rod 3 and the horizontal shaft rod 2 which are connected with each other; an insulating layer is arranged on the inner side of the steel plates, and wires of the illuminator 25 and the miniature camera 26 can be connected between the two steel plates in a penetrating way.
In the embodiment, the bottom surface of the installation box 4 is connected with a illuminator 25 and a miniature camera 26 in a threaded or adhesive manner; the mounting box 4 is welded with a reinforcing rod 14 below one side of the transverse shaft rod 2; the reinforcing rod 14 is a hollow steel pipe and is spliced through a reinforcing rod sleeve 15; the inside of the reinforcing rod 14 is communicated with the inside of the double-layer steel plate of the installation box 4, and the inside of the reinforcing rod 14 is provided with an insulating layer and is connected with the wires of the illuminator 25 and the miniature camera 26 in a penetrating way.
In the embodiment, the fixed rod 7 is a steel rod piece, the outer end part of the fixed rod 7 is rotationally connected with two limit bearings 16, and the limit bearings 16 are arranged at intervals in the length direction of the fixed rod 7; the outer end part of the reinforcing rod 14 is connected with two limiting plates 17 in a penetrating way, the limiting plates 17 are steel plates, and the limiting plates 17 are arranged at intervals in the long upward direction of the reinforcing rod 14; the limit bearing 16 and the limit plate 17 are welded integrally and connected with the lower support platform 19 through the connecting post 18 by bolts 11.
In this embodiment, the supporting platform 19 is a rectangular steel member, a supporting column is welded at the center of the bottom surface of the supporting platform 19, and the supporting column 20 is formed by splicing supporting column sleeves 21; the bottom of the support column 20 is connected with a diagonal brace 23 with a base 24, wherein the base 24 is connected with the ground through foundation bolts or the base 24 can bear load generated above by self-balancing weight to be connected with the ground in a contact manner; the lower middle part of the support column 20 is connected with a limiting clamp plate 22, and nut placing pieces 13 are correspondingly connected between the limiting clamp plates 22 in a penetrating way.
As shown in fig. 2 and 3, the vertical bevel gear 1 is positioned at the lower side of the horizontal bevel gear 1, and the vertical bevel gear 1 is connected with the horizontal bevel gear 1 in a meshed manner; the transverse shaft rod 2 and the vertical shaft rod 3 are made of 6mm stainless steel shaft rods, and the transverse shaft rod 2 and the vertical shaft rod 3 penetrate through the installation box 4 and are rotatably connected with the installation box 4 through bearings; the vertical shaft rod 3 is vertically connected in a through length mode on the installation box 4, the top of the vertical shaft rod penetrates out of the top of the installation box 4, the lower side of the vertical shaft rod penetrates out of the bottom of the installation box 4 and is connected with the connecting shaft rod 8 through the connector 5, the connector 5 is a tubular steel piece, the inner diameters of the connector 5 are respectively suitable for the vertical shaft rod 3 and the connecting shaft rod 8, and the vertical shaft rod 3 and the connecting shaft rod 8 are detachably connected through a pin joint.
In this embodiment, the lower end of the connecting rod 8 is connected with a bolt sleeve 9, the inside of the bolt sleeve 9 is connected with a magnet 10, and the size of the groove inside the bolt sleeve 9 is adapted to the size of the top end of the bolt 11. The transverse shaft lever 2 is connected with the extension rod 6 through the connector 5, and scales are arranged on the extension rod 6. The extension rod 6 and the fixed rod 7 are connected in a telescopic way through hydraulic control; wherein the connector 5 is a tubular steel member, the inner diameters of which are respectively adapted to the transverse shaft lever 2 and the extension rod 6, and are detachably connected by pin joint.
As shown in fig. 4, the inner diameter of the limit bearing 16 is adapted to the outer diameter of the fixed rod 7; the limiting plate 17 is a rectangular steel plate; the limiting plate 17 comprises a limiting plate body 171 and a limiting plate hole 172, wherein the diameter of the limiting plate hole 172 is adapted to the diameter of the reinforcing rod 14, and an arc notch is formed in the upper part of the limiting plate body 171 and corresponds to the welding limiting bearing 16; the lower part of the limiting plate 171 is welded with a connecting column 18, and the lower end of the connecting column 18 is connected to a supporting platform 19 through a nut 12.
As shown in fig. 5, the nut placement member 13 includes a placement rod 133 and a placement plate 131 screwed or sleeved to one end of the placement rod 133; the placing plate 131 is a steel plate, the placing plate 131 is provided with a placing hole 132 corresponding to the size of the nut 12, and the lower side of the placing hole 132 is suitable for the passing of the bolt 11; the placing rod 133 is made of steel pipes, and the placing rod 133 is spliced by the placing rod sleeve 134, and one end of the placing rod 133, which is not connected with the placing plate 131, is inserted into the limit clamping plate 22 so as to define a vertical position. Wherein, the limiting clamp plate 22 is a rectangular steel strip plate, and the position of the supporting column 20 where the limiting clamp plate 22 is positioned is provided with a hole which is penetrated and connected with the placing rod 133; the limiting clamping plates 22 are arranged in parallel on the upper side and the lower side of the hole.
Referring to fig. 1 to 5, a construction method for a narrow space air duct bolt fastening device is further described, and the specific steps are as follows:
Firstly, after the construction of an air pipe is completed, manufacturing an extension rod 6 and a fixed rod 7 according to the installation length of an actual bolt 11 to be fastened, wherein the extension and contraction of the extension rod 6 and the fixed rod 7 are controlled by hydraulic pressure; determining the height of the limit bearing 16 according to the height of the bolt 11 to be fastened; the nut placement piece 13 is made according to the size and the installation length of the nut 12.
In this embodiment, when the nut placement member 13 is manufactured, if the nuts 12 are within the same linear range, a plurality of placement plates 131 may be connected side by side to one placement rod 133; if the nut 12 is arranged in a plurality of straight lines, a plurality of placing rods 133 can be arranged in parallel according to the number of the straight lines so as to adapt to the quick installation of the nut 12.
Step two, manufacturing an installation box 4 and a bevel gear 1, arranging the bevel gear 1 at a right angle according to the design, and testing the fluency of engagement rotation of the bevel gear 1; the illuminator 25 and the miniature camera 26 are arranged at the lower part of the installation box 4, the reinforcing rod 14 is arranged at the side surface, and the wires of the illuminator 25 and the miniature camera 26 are connected into the reinforcing rod 14 from the inside of the installation box 4 in a penetrating way and finally connected with an external power supply and a display; the illuminator 25 and the miniature camera 26 can also be controlled in a wireless manner at a construction site with better network conditions.
Step three, manufacturing a limit bearing 16, a limit plate 17 and a limit clamping plate 22, integrally connecting the limit bearing 16 and the limit plate 17 to a support platform 19, and connecting the limit clamping plate 22 to a support column 20 of a section; the opposite surfaces of the two limiting brackets 22 are provided with rough surfaces for fixing the placing rod 133.
Step four, installing a base 24, assembling a support column 20 and a connecting diagonal brace 23 on the base 24, and determining the position of a limiting clamp plate 22 on the support column 20 according to the position of a bolt 11 to be installed at the air pipe; and a supporting platform 19, a connecting column 18, a limiting plate 17 and a limiting bearing 16 are arranged corresponding to the design positions of the fixed rod 7 and the reinforcing rod 14.
When the limiting clamp plate 22 is installed, the nut placing piece 13 is installed in advance through experiments, so that the placing plate 131 is clung to the position of the bolt 11 to be fastened, where the nut 12 is required to be placed, and the position of the limiting clamp plate 22 is determined after the placing plate is qualified; the limiting plate 17 and the limiting bearing 16 are prefabricated and welded in advance according to the position distance between the fixed rod 7 and the reinforcing rod 14, the connecting column 18 is welded under the limiting plate 17, and the connecting column 18 is fixedly connected with the supporting platform 19 through the nut 12 after being pre-connected with the supporting platform 19 according to the field test.
Step five, connecting the lower end of the vertical shaft rod 3 in the installation box 4 with the bolt sleeve 9 and connecting the bolt 11 through the magnet 10, connecting the extension rod 6 with the transverse shaft rod 2 and extending the extension rod 6 under hydraulic control, primarily reaching the position of the bolt 11 to be fastened, finely adjusting the position of the bolt 11 according to the image transmitted by the miniature camera 26, aligning the bolt 11 with the reserved bolt hole, and starting the illuminator 25 if the light is dark.
Step six, placing corresponding nuts 12 in the placing plate 131, and penetrating the placing rods 133 into the limiting clamping plates 22 for vertical positioning; after reaching a specified position along the lower side of the bolt 11 to be fastened, the image transmitted by the micro camera 26 fine-adjusts the horizontal position of the placement plate 131 until the nut 12 is aligned with the upper bolt 11.
Step seven, connecting an electric rotating machine or manual rotation at the outer end part of the fixed rod 7, so that the bolt 11 penetrates into the nut 12 in the placing plate 131; as the bolts 11 are screwed in, the mounting box 4 will gradually fall down, at which time the connection length of the support column sleeve 21 under the support platform 19 is adjusted to accommodate the falling height of the mounting box 4.
Step eight, after the installation of the bolts 11 is completed, lifting the support columns 20 under the support platform 19 and contracting the bolts 11 of the extension rod 6 for connecting the next installation point, and extending towards the next installation point after the connection is completed; the reinforcing rod 14 and the placing rod 133 are spliced and lengthened or shortened by the respective connected sleeves corresponding to the length of the extension rod 6 until the fastening installation of all the bolts 11 is completed.
In addition, when the height of the mounting box 4 is changed to be small during construction, the nut 12 between the connection post 18 and the support platform 19 may be loosened, and the lifting of the mounting box 4 may be engaged by the lifting of the connection post 18.
The foregoing is merely illustrative of preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any changes or substitutions that would occur to those skilled in the art within the scope of the present invention are intended to be included in the scope of the present invention.
Claims (1)
1. The construction method for the narrow space air duct bolt fastening device is characterized by comprising a mounting box (4), a group of bevel gears (1) connected in the mounting box (4) in a transverse and vertical right-angle mode, a transverse shaft rod (2) connected to the outer end part of the transverse bevel gears (1), a vertical shaft rod (3) connected to the end part of the vertical bevel gears (1), an extension rod (6) and a fixing rod (7) connected to the outer end part of the transverse shaft rod (2), a connecting shaft rod (8) and a bolt sleeve head (9) connected to the lower end part of the vertical shaft rod (3) and a nut placing piece (13) positioned below the bolt sleeve head (9);
the nut placing piece (13) comprises a placing rod (133) and a placing plate (131) detachably connected to one end of the placing rod (133), and a placing hole (132) is formed in the placing plate (131) corresponding to the size of the nut (12);
the vertical bevel gear (1) is positioned at the lower side of the transverse bevel gear (1), and the vertical bevel gear (1) is meshed with the transverse bevel gear (1); the transverse shaft rod (2) and the vertical shaft rod (3) penetrate through the mounting box (4) and are rotatably connected with the mounting box (4);
The mounting box (4) is a rectangular box, and the bottom surface of the mounting box (4) is detachably connected with a illuminator (25) and a miniature camera (26); the mounting box (4) is connected with a reinforcing rod (14) below one side of the transverse shaft rod (2), and the outer end part of the reinforcing rod (14) is connected with a limiting plate (17);
the extension rod (6) is connected with the fixed rod (7) in a telescopic way, and the outer end part of the fixed rod (7) is connected with a limit bearing (16); the limit bearing (16) and the limit plate (17) are integrally connected and connected with the lower support platform (19) through the connecting column (18);
A support column (20) is connected below the support platform (19), and a base (24) connected with the ground is connected to the bottom end of the support column (20); the support columns (20) are also connected with limiting clamping plates (22), and the limiting clamping plates (22) are correspondingly connected with the placing rods (133) in a penetrating way;
The vertical shaft rod (3) is vertically connected in a through-length manner on the mounting box (4), and the lower side of the vertical shaft rod (3) penetrates out of the mounting box (4) and is connected with the connecting shaft rod (8) through the connector (5); the transverse shaft rod (2) is connected with the extension rod (6) through a connector (5); the extension rod (6) is provided with scales;
The magnet (10) is connected inside the bolt sleeve head (9), and the size of the groove inside the bolt sleeve head (9) is adapted to the size of the top end of the bolt (11);
The limit bearings (16) are arranged at intervals in the long upward direction of the fixed rod (7) and are rotationally connected with the fixed rod (7); the limiting plates (17) are arranged at intervals in the long upward direction of the reinforcing rod (14) and are connected with the reinforcing rod (14) in a penetrating way; the limit bearing (16) and the limit plate (17) are connected up and down and are respectively arranged in at least two;
The reinforcing rod (14) is a hollow pipe and is spliced through a reinforcing rod sleeve (15); the inside of the reinforcing rod (14) is provided with an insulating layer and is connected with a lead of the illuminator (25) and the miniature camera (26) in a penetrating way;
the limiting plate (17) is a rectangular plate, and an arc notch is correspondingly connected with the limiting bearing (16) at the upper part of the rectangular plate; the lower part of the limiting plate (17) is connected with a connecting column (18), and the lower end of the connecting column (18) is detachably connected with a supporting platform (19);
The supporting platform (19) is a rectangular piece, the center of the bottom surface of the supporting platform (19) is connected with a supporting column (20), and the supporting column (20) is spliced by a supporting column sleeve (21); the bottom of the support column (20) and the base (24) are also connected with diagonal braces (23);
The limiting clamp plate (22) is a rectangular slat, and a hole penetrating through the placing rod (133) is formed in the support column (20) where the limiting clamp plate (22) is located; the limiting clamping plates (22) are arranged on the upper side and the lower side of the hole in parallel;
the placing rods (133) are spliced through the placing rod sleeves (134), and one ends of the placing rods, which are not connected with the placing plates (131), are connected into the limiting clamping plates (22) in a penetrating mode;
The construction method for the air duct bolt fastening device in the narrow space comprises the following specific steps:
Step one, after the construction of the air pipe is completed, manufacturing an extension rod (6) and a fixed rod (7) according to the installation length of an actual bolt (11) to be fastened, wherein the extension and contraction of the extension rod (6) and the fixed rod (7) are controlled by hydraulic pressure; determining the height of a limit bearing (16) according to the height of a bolt (11) to be fastened; manufacturing a nut placing piece (13) according to the size and the installation length of the nut (12);
Step two, manufacturing an installation box (4) and a bevel gear (1), arranging the bevel gear (1) at right angles according to the design, and testing the meshing rotation fluency of the bevel gear (1); an illuminator (25) and a miniature camera (26) are arranged at the lower part of the installation box (4), and a reinforcing rod (14) is arranged at the side surface; the wires of the illuminator (25) and the miniature camera (26) are connected into the reinforcing rod (14) from the inside of the installation box (4) in a penetrating way, and finally are connected with an external power supply and a display;
Step three, manufacturing a limit bearing (16), a limit plate (17) and a limit clamping plate (22), integrally connecting the limit bearing (16) and the limit plate (17) and pre-connecting the limit bearing and the limit plate (17) on a support platform (19), and connecting the limit clamping plate (22) on a support column (20) of one section;
step four, installing a base (24) and assembling a support column (20) on the base (24), and determining the position of a limiting clamp plate (22) on the support column (20) according to the position of a bolt (11) to be installed at the air pipe; the support platform (19), the connecting column (18), the limiting plate (17) and the limiting bearing (16) are arranged at the design positions corresponding to the fixing rod (7) and the reinforcing rod (14);
Step five, connecting the lower end of a vertical shaft rod (3) in an installation box (4) with a bolt sleeve head (9) and connecting the bolt sleeve head with a bolt (11) through a magnet (10), connecting an extension rod (6) with a transverse shaft rod (2) and extending the extension rod (6) under hydraulic control, initially reaching the position of the bolt (11) to be fastened, finely adjusting the position of the bolt (11) according to the image transmitted by a miniature camera (26), and enabling the bolt to be aligned with a reserved bolt hole, and if light is dark, starting an illuminator (25);
Step six, placing corresponding nuts (12) in the placing plate (131), penetrating the placing rod (133) into the limiting clamping plate (22) for vertical positioning; after reaching a designated position along the lower part of the bolt (11) to be fastened, the horizontal position of the placing plate (131) is finely adjusted by an image transmitted by the miniature camera (26) until the nut (12) is aligned with the bolt (11) above;
Step seven, connecting an electric rotating machine or manually rotating the outer end part of the fixed rod (7) so that a bolt (11) penetrates into a nut (12) in the placing plate (131); as the bolts (11) are screwed in, the mounting box (4) gradually falls, and at the moment, the connection length of the support column sleeve (21) under the support platform (19) is adjusted to adapt to the falling height of the mounting box (4);
Step eight, after the installation of the bolts (11) is completed, lifting the support column (20) under the support platform (19) and shrinking the bolts (11) of the extension rod (6) connected with the next installation point, and extending towards the next installation point after the connection is completed; the length of the extension rod (6) corresponding to the sleeve connected with the reinforcing rod (14) and the placing rod (133) is spliced and lengthened or shortened until the fastening and the installation of all the bolts (11) are completed.
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| CN201910910525.1A CN110640685B (en) | 2019-09-25 | 2019-09-25 | Air duct bolt fastening device for narrow space and construction method thereof |
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| CN201910910525.1A CN110640685B (en) | 2019-09-25 | 2019-09-25 | Air duct bolt fastening device for narrow space and construction method thereof |
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| CN110640685B true CN110640685B (en) | 2024-06-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113973462B (en) * | 2020-07-23 | 2023-04-18 | 株洲中车机电科技有限公司 | Electric appliance board and electric appliance box capable of being conveniently disassembled and assembled |
| CN112091893B (en) * | 2020-08-26 | 2021-12-31 | 江西昌河航空工业有限公司 | Throttle valve mounting device and method |
| CN113478427A (en) * | 2021-05-18 | 2021-10-08 | 上海市安装工程集团有限公司 | Internal corner flange fastening device for air pipe of air pipe well |
| CN113770711B (en) * | 2021-09-02 | 2023-11-24 | 上海市安装工程集团有限公司 | Bolt dismounting tool |
| CN114012665B (en) * | 2021-11-12 | 2023-09-22 | 中国华冶科工集团有限公司 | High-strength bolt mounting device and mounting method thereof |
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| KR19990052821A (en) * | 1997-12-23 | 1999-07-15 | 정몽규 | Head structure of tool for bolt tightening |
| CN202517443U (en) * | 2012-03-23 | 2012-11-07 | 陕西科技大学 | Dark corner sleeve detacher |
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| CN203109858U (en) * | 2013-03-07 | 2013-08-07 | 辽宁省电力有限公司盘锦供电公司 | Bevel gear intermediate shaft insulating spanner |
| CN206998814U (en) * | 2017-06-05 | 2018-02-13 | 中建三局第二建设工程有限责任公司 | One kind is applied to pipe well flange blast pipe bolt fastening package unit in a row |
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| KR19990052821A (en) * | 1997-12-23 | 1999-07-15 | 정몽규 | Head structure of tool for bolt tightening |
| CN202517443U (en) * | 2012-03-23 | 2012-11-07 | 陕西科技大学 | Dark corner sleeve detacher |
| CN105397719A (en) * | 2015-12-31 | 2016-03-16 | 中建五局工业设备安装有限公司 | Screwing and unscrewing tool for screws and nuts |
| CN205703904U (en) * | 2016-04-21 | 2016-11-23 | 中建三局第二建设工程有限责任公司 | A kind of narrow space inner bolt fastening actuating device |
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| CN110640685A (en) | 2020-01-03 |
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