CN112339934A - Bearing type centering method for sealing device of ship installation tail pipe - Google Patents
Bearing type centering method for sealing device of ship installation tail pipe Download PDFInfo
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- CN112339934A CN112339934A CN202011050425.5A CN202011050425A CN112339934A CN 112339934 A CN112339934 A CN 112339934A CN 202011050425 A CN202011050425 A CN 202011050425A CN 112339934 A CN112339934 A CN 112339934A
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- 238000007789 sealing Methods 0.000 title claims abstract description 110
- 238000009434 installation Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001179 sorption measurement Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 39
- 238000005096 rolling process Methods 0.000 claims description 19
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 210000004907 gland Anatomy 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001584775 Tunga penetrans Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
- B63H2023/327—Sealings specially adapted for propeller shafts or stern tubes
Abstract
The invention discloses a bearing type centering method of a ship installation tail pipe sealing device, which adopts a specially-made centering device, wherein the centering device comprises a rotating mechanism, a magnetic gauge stand, a dial gauge, an installation base, a connecting plate and a supporting seat, the magnetic gauge stand is fixed on an outer arc section of a bearing seat frame through magnetic adsorption, the dial gauge is fixed on the magnetic gauge stand, the rotating mechanism is rotatably installed on the installation base, the installation base is installed on the connecting plate, and the connecting plate is adjustably installed on the supporting seat. The tail pipe sealing device is simple in structure and convenient to use, the problem that the tail pipe sealing device is difficult to install due to delayed installation of the main engine or the intermediate shaft in the prior art can be solved by utilizing the tail pipe sealing device to install the tail pipe sealing device, the installation precision of the tail pipe sealing device can be improved, and the installation strength of constructors can be reduced.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a bearing type centering method for a ship installation tail pipe sealing device.
Background
With the development trend of large-scale modern ship construction, the diameter of the propeller used by the ship is gradually increased, and the weight of the propeller is also gradually increased. For example, a ship type propeller has a diameter of about 11m and a weight of about 93t, and similarly, the propeller shaft diameter and the weight are increased, and the ship type propeller shaft referred to above has a weight of about 92 t. Meanwhile, products used in the current shipbuilding are provided by different suppliers, such as the main engine, the propeller, the intermediate shaft, the propeller shaft and the like used by the ship, and if the suppliers cannot supply the products on schedule, such as the main engine or the intermediate shaft, the propeller shaft and the tail pipe sealing device need to be installed in advance in order to shorten the shipbuilding period and reduce the manufacturing cost or the maintenance cost.
After the propeller shaft, the tail pipe sealing device, the propeller and other parts of the ship of each ship type are usually installed, the main engine and the shaft system are pre-calibrated and initially positioned at the installation position, the intermediate shaft, the propeller shaft, the intermediate shaft and the main engine are connected into a whole by using temporary bolts, and the tail pipe sealing device is calibrated and installed by using the rotating shaft system of the turning machine of the main engine. Because the main engine or the intermediate shaft is not hung to the installation position, the central installation work of the tail pipe sealing device cannot be finished by using the jigger of the main engine, and if additional power equipment and auxiliary tools are used for rotating assembling parts such as a propeller with the weight of about 200t, a propeller shaft and the like, the labor intensity of constructors is high, large manpower and material resources are needed, the rotation is not stable and difficult to control, and the precision for installing the tail pipe sealing device is low.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a bearing type centering method for mounting a tail pipe sealing device on a ship, which can solve the problem that the tail pipe sealing device is difficult to mount due to delayed mounting of a main engine or an intermediate shaft in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a bearing type centering method of a ship installation tail pipe sealing device, which adopts a special centering device and comprises a rotating mechanism, a magnetic meter frame, a dial indicator, an installation base, a connecting plate and a supporting seat,
the rotating mechanism comprises a bearing seat frame, a rolling bearing, a first bearing shaft, a second bearing shaft, a first pressing plate, a second pressing plate, a first set screw and a second set screw, wherein the bearing seat frame is an arc-shaped component, the bearing seat frame is provided with an upper boss along an outer arc section and a lower boss along an inner arc section, a mounting groove is formed between the upper boss and the lower boss, the first pressing plate is mounted at the end part of the upper boss, the second pressing plate is mounted at the end part of the lower boss, the first pressing plate and the second pressing plate are both arc-shaped, one side of the bearing seat frame facing the first pressing plate and one side of the first pressing plate facing the bearing seat frame are respectively provided with a first shaft mounting hole, the first bearing shaft is arranged between the two first shaft mounting holes, and the rolling bearing is sleeved on the first bearing shaft, the bearing seat frame faces one side of the second pressing plate, the second pressing plate faces one side of the second bearing seat frame and is respectively provided with a second shaft mounting hole, the second bearing shaft is arranged between the two second shaft mounting holes, the second bearing shaft is sleeved with a rolling bearing, the outer arc section of the bearing seat frame and the outer arc section of the first pressing plate are provided with first fastening screw holes, first fastening screws are arranged in the first fastening screw holes, the inner arc section of the bearing seat frame and the inner arc section of the second pressing plate are provided with second fastening screw holes, second fastening screws are arranged in the second fastening screw holes, the first fastening screws are vertical to the first bearing shaft, and the second fastening screws are vertical to the second bearing shaft,
the magnetic gauge stand is fixed on the outer arc section of the bearing seat frame through magnetic adsorption, the dial gauge is fixed on the magnetic gauge stand,
the mounting base is of a circular ring structure, a mounting channel is formed in the position, close to the outer arc, of the side portion of the mounting base along the circumferential direction of the mounting base, the second pressing plate, the lower boss and the second bearing shaft are arranged in the mounting channel, a bearing track is formed in the outer arc surface of the mounting base along the circumferential direction of the outer arc surface, a rolling bearing on the first bearing shaft is arranged in the bearing track, a plurality of base mounting holes are formed in the side wall of the mounting base in a penetrating mode along the circumferential direction,
a plurality of plate mounting holes corresponding to the seat mounting holes are arranged on the connecting plate in a penetrating way, the mounting base is mounted on the connecting plate through seat mounting bolts and seat mounting nuts, the lower end of the connecting plate is respectively provided with a long waist-shaped transverse adjusting slotted hole at two sides, first adjusting seat plates are arranged at two sides of the connecting plate in an outward extending way, first adjusting threaded holes are arranged in the first adjusting seat plates in a penetrating way, and first adjusting bolts are arranged in the first adjusting threaded holes,
the support seat is provided with two long waist-shaped vertical adjusting slotted holes, the transverse adjusting slotted holes and the longitudinal adjusting slotted holes are arranged in an intersecting manner to form mounting slotted holes and are fixed with plate mounting nuts through plate mounting bolts, the lateral part of the support seat extends outwards to be provided with a first adjusting bottom plate, one side of the first adjusting bottom plate, which is far away from the support seat, is provided with a third adjusting seat plate, the third adjusting seat plate is vertical to the first adjusting bottom plate, the top part of the first adjusting bottom plate is provided with a first reinforcing plate, the first reinforcing plate is connected with the support seat and the first adjusting bottom plate, the first reinforcing plate is positioned under the first adjusting bolts, third adjusting threaded holes are arranged on the third adjusting seat plate in a penetrating manner, third adjusting bolts are arranged in the third adjusting threaded holes, and support the lateral part of the connecting plate, a second adjusting seat plate is arranged on the supporting seat and is positioned right below the longitudinal adjusting slotted hole, a second adjusting threaded hole is arranged on the second adjusting seat plate in a penetrating manner, a second adjusting bolt is arranged in the second adjusting threaded hole and supports the lower part of the connecting plate,
the centering method comprises the following steps:
firstly, before a propeller shaft is installed, sleeving a head sealing device on the propeller shaft, moving the head sealing device to a flange end close to the propeller shaft, hoisting the propeller shaft, inserting the propeller shaft into a tail pipe, plugging the tail pipe to an installation position of the propeller shaft, moving the head sealing device to the installation position, hoisting and sleeving a tail sealing device on the propeller shaft, pre-fixing a front end seat plate of a sealing body on the tail pipe by using a sealing installation bolt, not screwing the sealing installation bolt, arranging an adjusting gasket between the sealing body and the tail pipe, and arranging a second elastic gasket between the sealing installation bolt and the sealing body;
secondly, hoisting the propeller at the installation position, adjusting the center of a taper hole of the propeller to be basically consistent with the center of a propeller shaft, sleeving the propeller on the propeller shaft, and leaving a space for arranging a dial indicator between the propeller and the sealing bush after the propeller is sleeved in place;
thirdly, setting up a centering device, determining the installation position of the centering device on the platform, placing the two supporting platforms at the installation position, installing the supporting seat, the connecting plate, the installation base and the rotating mechanism in place, and arranging the installation base outside the sealing body;
step four, fixing the magnetic gauge stand on the rotating mechanism in an adsorbing manner, installing a connecting rod and a dial indicator on the gauge stand, and checking the contact between a measuring head on a push rod of the dial indicator and the surface of the propeller shaft;
taking the excircle of the propeller shaft as a reference, manually rotating the rotating mechanism, observing data of the dial indicator, adjusting the mounting base to be concentric with the propeller shaft, locking the mounting bolts of the support seat and the plate on the connecting plate after adjustment, fixing the position of the centering device, locking the first adjusting bolt, the second adjusting bolt and the third adjusting bolt, rotating the rotating mechanism again, and observing whether the data of the dial indicator changes;
sixthly, removing the dial indicator and the connecting rod, finely adjusting the propeller and the propeller shaft to the mounting position, pre-fixing the flange end of the sealing bush on the propeller through a sealing fastening bolt, arranging a sealing gasket between the sealing bush and the propeller, and arranging a first elastic gasket between the sealing fastening bolt and the sealing bush;
step seven, installing the connecting rod and the dial indicator on the magnetic indicator frame again, contacting the measuring head on the ejector rod of the dial indicator with the outer surface of the sealing bush, rotating the rotating mechanism, observing the data of the dial indicator, and adjusting the sealing bush to enable the data of circular runout on the dial indicator to be within a required range;
rotating the dial indicator by ninety degrees or an angle suitable for measurement, arranging a measuring head on a push rod of the dial indicator on a flange plane of the sealing bush, rotating the rotating mechanism, observing data of the dial indicator, and adjusting the sealing bush to enable the data of full run-out of the upper end surface of the dial indicator to be within a required range;
and step nine, measuring the distance between the inner hole of the rear end gland of the sealing body and the excircle of the sealing bush, adjusting the sealing body to enable the distance between the inner hole of the rear end gland in the upper, lower, left and right directions to be within a required range, screwing the sealing fastening bolt after centering is finished, and removing the centering device.
As a preferable technical scheme, the number of the first shaft mounting holes is 1, the number of the second shaft mounting holes is 2, and the first shaft mounting holes and the second shaft mounting holes are arranged in a staggered manner along the length direction of the bearing seat frame.
As a preferable technical scheme, the first pressure plate and the bearing seat frame, and the second pressure plate and the bearing seat frame are fixed by plate fastening bolts.
As an optimal technical scheme, the first shaft mounting hole and the second shaft mounting hole are both long waist holes, and the long axis of the shaft mounting hole points to the center of a circular arc where the bearing seat frame is located.
As a preferable technical scheme, a first gasket is arranged between the rolling bearing and the first pressure plate, and a second gasket is arranged between the rolling bearing and the second pressure plate.
As a preferable technical solution, the mounting base is composed of two semicircular annular seat members, two ends of each of the two seat members are respectively provided with two seat bosses, the seat bosses are arranged on two sides of the seat member, and the two seat members are fixed with fixing nuts through fixing bolts.
Preferably, a reinforcing rib is provided between the support base, the first adjustment floor, and the third adjustment seat plate.
As the preferred technical scheme, a supporting platform is arranged at the bottom of the supporting seat.
Compared with the prior art, the invention has the beneficial effects that:
the tail pipe sealing device is simple in structure and convenient to use, the problem that the tail pipe sealing device is difficult to install due to delayed installation of the main engine or the intermediate shaft in the prior art can be solved by utilizing the tail pipe sealing device to install the tail pipe sealing device, the installation precision of the tail pipe sealing device can be improved, and the installation strength of constructors can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a centering installation structure of the centering device of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
FIG. 3 is a diagram illustrating the operation of the centering device according to the present invention.
Fig. 4 is a partially enlarged view of fig. 3 at B.
FIG. 5 is a schematic structural diagram of a centering device according to the present invention.
Fig. 6 is a cross-sectional view taken along the direction C-C of fig. 5.
Fig. 7 is a cross-sectional view taken along the direction C-C1 in fig. 5.
Fig. 8 is a cross-sectional view taken along the direction D-D of fig. 5.
FIG. 9 is a schematic view of a bearing frame of the centering device of the present invention.
Fig. 10 is a cross-sectional view taken along the direction E-E of fig. 9.
FIG. 11 is a schematic view of the first pressing plate of the calibration apparatus of the present invention.
Fig. 12 is a sectional view taken along the direction F-F in fig. 11.
Fig. 13 is a sectional view taken along the direction G-G of fig. 11.
FIG. 14 is a schematic view of the second presser plate in the calibration apparatus of the present invention.
Fig. 15 is a sectional view taken along the direction H-H in fig. 14.
Fig. 16 is a cross-sectional view taken along the line I-I of fig. 14.
FIG. 17 is a schematic view of a mounting base of the centering device of the present invention.
Fig. 18 is a cross-sectional view taken along direction J-J of fig. 17.
Fig. 19 is a cross-sectional view taken along the direction K-K of fig. 17.
FIG. 20 is a schematic view of a support base of the calibrating apparatus of the present invention.
FIG. 21 is a left side view of a support base of the centering device of the present invention.
FIG. 22 is a schematic view showing the structure of a connection plate in the calibration apparatus of the present invention.
FIG. 23 is a left side view of the connection plate of the centering device of the present invention.
Wherein the reference numerals are as follows: the dial gauge 101, the magnetic gauge frame 102, the rotation mechanism 103, the bearing seat frame 1031, the first set screw 1032, the first bearing shaft 1033, the second bearing shaft 1034, the second set screw 1035, the second pressing plate 1036, the second plate fastening bolt 1037, the second gasket 1038, the rolling bearing 1039, the first gasket 10310, the first pressing plate 10311, the first plate fastening bolt 10312, the mounting base 104, the fixing bolt 1041, the fixing nut 1042, the connecting plate 105, the first adjustment seat plate 1051, the seat mounting nut 106, the seat mounting bolt 107, the plate mounting nut 108, the plate mounting bolt 109, the supporting seat 110, the second adjustment bolt 111, the second adjustment seat plate 112, the third adjustment bolt 113, the third adjustment seat plate 114, the reinforcement rib plate 115, the first reinforcement plate 116, the first adjustment bottom plate 117, the first adjustment bolt 118, the supporting platform 201, the propeller 301, the propeller shaft 401, the seal gasket 501, the 502, the seal fastening bolt 503, the seal fastening bolt, First elastic gasket 504, seal body 505, seal mounting bolt 506, second elastic gasket 507, adjusting gasket 508, tail pipe 601.
Detailed Description
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
The embodiment provides a centering device for installing a tail pipe sealing device, which comprises a rotating mechanism 103, a magnetic gauge stand 102, a dial gauge 101, an installation base 104, a connecting plate 105 and a supporting seat 110.
The rotating mechanism 103 is composed of a bearing seat frame 1031, a first set screw 1032, a first bearing shaft 1033, a first gasket 10310, a first pressing plate 10311, a second set screw 1035, a second bearing shaft 1034, a second gasket 1038, a second pressing plate 1036, and a rolling bearing 1039. The bearing seat frame 1031 is an arc-shaped member, the bearing seat frame 1031 is provided with an upper boss along an outer arc section, a lower boss along an inner arc section, and a mounting groove is formed between the upper boss and the lower boss. The first pressing plate 10311 is mounted on the end portion of the upper boss by a fastener, the second pressing plate 1036 is mounted on the end portion of the lower boss by a fastener, and both the first pressing plate 10311 and the second pressing plate 1036 are arc-shaped. In this embodiment, the fasteners are first plate fastening bolts 10312 and second plate fastening bolts 1037, a plurality of countersunk bolt holes are provided at positions of the first pressing plate 10311 corresponding to the upper bosses, and a plurality of countersunk bolt holes are provided at positions of the second pressing plate 1036 corresponding to the upper bosses.
First shaft mounting holes are respectively formed in one side, facing the first pressure plate 10311, of the bearing seat frame 1031 and one side, facing the bearing seat frame 1031, of the first pressure plate 10311, a first bearing shaft 1033 is arranged between the two first shaft mounting holes, and a rolling bearing 1039 is sleeved outside the first bearing shaft 1033. A second shaft mounting hole is respectively formed in one side of the bearing seat frame 1031 facing the second pressure plate 1036, one side of the second pressure plate 1036 facing the second bearing seat frame 1031 is provided with a second bearing shaft 1034, and a rolling bearing 1039 is sleeved on the second bearing shaft 1034. The number of the first shaft mounting holes is 1, the number of the second shaft mounting holes is 2, and the first shaft mounting holes and the second shaft mounting holes are arranged in a staggered manner along the length direction of the bearing seat frame 1031. A first gasket 10310 is provided between the rolling bearing 1039 and the first pressure plate 10311, and a second gasket 1038 is provided between the rolling bearing 1039 and the second pressure plate 1036.
The first shaft mounting hole and the second shaft mounting hole are both long waist holes, and the long axis of the shaft mounting hole points to the center of the arc where the bearing seat frame 1031 is located. The outer arc section of the bearing seat frame 1031 and the outer arc section of the first pressure plate 10311 are provided with first fastening screw holes, first fastening screws 1032 are installed in the first fastening screw holes, the inner arc section of the bearing seat frame 1031 and the inner arc section of the second pressure plate 1036 are provided with second fastening screw holes, second fastening screws 1035 are arranged in the second fastening screw holes, the first fastening screws 1032 are perpendicular to the first bearing shaft 1033, the second fastening screws 1035 are perpendicular to the second bearing shaft 1034, and the positions of the first bearing shaft 1033 and the second bearing shaft 1034 are respectively adjusted through the first fastening screws 1032 and the second fastening screws 1035, so that the first fastening screws 1032 and the second fastening screws 1035 can be in good contact with the surface of the mounting base 104.
The mounting base 104 is composed of two semicircular ring-shaped seat members, two ends of the two seat members are respectively provided with two seat bosses which are arranged on two sides of the seat members, and the two seat members are fixed with the fixing nuts 1042 through fixing bolts 1041. The lateral part of installation base 104 is close to outer circular arc department and has seted up the installation channel along the circumference of installation base 104, second clamp plate 1036, lower boss, second bearing axle 1034 set up in the installation channel, the bearing track has been seted up along its circumference to the outer circular arc face of installation base 104, antifriction bearing 1039 on the first bearing axle 1033 set up in the bearing track, the lateral wall of installation base 104 runs through along circumference and is provided with a plurality of seat mounting holes.
Connecting plate 105 is used for fixed mounting base 104, and connecting plate 105 adopts the steel sheet preparation to form, and one side of connecting plate 105 sets up to the arc surface, and connecting plate 105 is provided with a plurality of board mounting holes along the radian direction of arc surface, the position one-to-one of board mounting hole and seat mounting hole, and after the seat mounting hole on the installation base 104 and the board mounting hole on the connecting plate 105 aligned, fix through seat construction bolt 107 and seat construction nut 106. Meanwhile, a long waist-shaped transverse adjusting slot hole is symmetrically formed in two sides of the lower portion of the connecting plate 105, first adjusting seat plates 1051 are symmetrically arranged on two sides of the connecting plate 105 in an outwards extending mode, first adjusting threaded holes are formed in the first adjusting seat plates 1051 in a penetrating mode, first adjusting bolts 118 are installed in the first adjusting threaded holes, and the first adjusting bolts 118 can rotate the upper position and the lower position of the mechanism 103 to fix the upper position and the lower position.
The supporting seat 110 includes two, sets up respectively in the both sides of connecting plate 105, and the bottom of supporting seat 110 is provided with supporting platform 201. The main body of the supporting seat 110 is a channel steel structure, a long waist-shaped vertical adjusting slot is formed in the upper portion of the supporting seat, the vertical adjusting slot and the horizontal adjusting slot are arranged in a crossed mode and fixed with a plate mounting nut 108 through a plate mounting bolt 109, and the vertical adjusting slot and the horizontal adjusting slot are used for adjusting the vertical position and the horizontal position of the rotating mechanism 103.
The lateral part of the supporting seat 110 extends outwards to be provided with a first adjusting bottom plate 117, one side of the first adjusting bottom plate 117, which is far away from the supporting seat 110, is provided with a third adjusting seat plate 114, the third adjusting seat plate 114 is perpendicular to the first adjusting bottom plate 117, the top of the first adjusting bottom plate 117 is provided with a first reinforcing plate 116, the first reinforcing plate 116 is connected with the supporting seat 110 and the first adjusting bottom plate 117, and the first reinforcing plate 116 is located under a first adjusting bolt 118 and used for supporting the first adjusting bolt 118 to fix the position of the connecting plate 105. Reinforcing ribs 115 are provided between the support base 110, the first adjustment base plate 117, and the third adjustment base plate 114.
A third adjusting threaded hole is formed in the third adjusting seat plate 114 in a penetrating manner, a third adjusting bolt 113 is arranged in the third adjusting threaded hole, and the third adjusting bolt 113 supports the side portion of the connecting plate 105 and is used for fixing two sides of the connecting plate 105. A second adjusting seat plate 112 is arranged right below the longitudinal adjusting groove hole of the supporting seat 110, a second adjusting threaded hole penetrates through the second adjusting seat plate 112, a second adjusting bolt 111 is installed in the second adjusting threaded hole, and the second adjusting bolt 111 supports the lower portion of the connecting plate 105 and is used for supporting the connecting plate 105.
The magnetic gauge frame 102 is fixed on the outer arc section of the bearing seat frame 1031 through magnetic adsorption, and the dial gauge 101 is fixed on the magnetic gauge frame 102.
In this embodiment, when the sealing device of the tail pipe 601 is calibrated, the specific process is as follows:
firstly, before the propeller shaft 401 is installed, sleeving a head sealing device on the propeller shaft 401, moving the head sealing device to a flange end close to the propeller shaft 401, lifting the propeller shaft 401, plugging the propeller shaft 401 into a tail pipe 601, plugging the tail pipe 601 to an installation position of the propeller shaft 401, moving the head sealing device to the installation position, lifting and sleeving a tail sealing device on the propeller shaft 401, pre-fixing a front end seat plate of a sealing body 505 on the tail pipe 601 through a sealing installation bolt 506, not screwing the sealing installation bolt 506, arranging an adjusting gasket 508 between the sealing body 505 and the tail pipe 601, and arranging a second elastic gasket 507 between the sealing installation bolt 506 and the sealing body 505.
Step two, the propeller 301 is lifted at the installation position, the center of the taper hole of the propeller 301 is adjusted to be basically consistent with the center of the propeller shaft 401, the propeller 301 is sleeved on the propeller shaft 401, and after the propeller 301 is sleeved in place, a space for arranging the dial indicator 101 is reserved between the propeller 301 and the sealing bush 501.
Step three, setting up a centering device, determining the installation position of the centering device on the platform, placing the two supporting platforms 201 at the installation position, installing the supporting seat 110, the connecting plate 105, the installation base 104 and the rotating mechanism 103 in place, and arranging the installation base 104 outside the sealing body 505. The method specifically comprises the following steps: after fixing the two support bases 110 at the mounting positions, the connecting plate 105 is fixed to the support bases 110 by the plate mounting bolts 109 and the plate mounting nuts 108, the mounting base 104 is fixed to the connecting plate 105 by the base mounting bolts 107 and the base mounting nuts 106, the rotating mechanism 103 is mounted to the mounting base 104, the rotating mechanism 103 is rotated to check flexibility and tightness thereof, the contact condition between the rolling bearing 1039 and the arc surface rail is adjusted by the first set screw 1032, the two semicircular base members are connected into a whole by the fixing bolt 1041 and the fixing nut 1042, and pre-calibration is performed by adjusting the first adjusting bolt 118, the second adjusting bolt 111, and the third adjusting bolt 113.
And step four, fixing the magnetic gauge stand on the rotating mechanism 103 in an adsorbing manner, installing the connecting rod and the dial gauge 101 on the gauge stand, and checking the contact between the measuring head on the ejector rod of the dial gauge 101 and the surface of the propeller shaft 401.
And step five, manually rotating the rotating mechanism 103 by taking the excircle of the propeller shaft 401 as a reference, observing data of the dial indicator 101, adjusting the mounting base to be concentric with the propeller shaft 401, locking the supporting seat 110 and the plate mounting bolt 109 on the connecting plate 105 after adjustment, fixing the position of the centering device, locking the first adjusting bolt 118, the second adjusting bolt 111 and the third adjusting bolt 113, and rotating the rotating mechanism 103 again to observe whether the data of the dial indicator 101 are changed.
And sixthly, removing the dial indicator 101 and the extension rod, finely adjusting the propeller and the propeller shaft 401 to the installation position, pre-fixing the flange end of the sealing bush 501 on the propeller 301 through a sealing fastening bolt 503, arranging a sealing gasket 502 between the sealing bush 501 and the propeller 301, and arranging a first elastic gasket 504 between the sealing fastening bolt 503 and the sealing bush 501.
And step seven, the connecting rod and the dial indicator 101 are installed on the dial indicator frame again, the measuring head on the ejector rod of the dial indicator 101 is in contact with the outer surface of the sealing bush 501, the rotating mechanism 103 is rotated, the data of the dial indicator 101 are observed, and the sealing bush 501 is adjusted, so that the circular runout data on the dial indicator 101 are in a required range.
Step eight, rotating the dial indicator 101 by ninety degrees or an angle suitable for measurement, arranging a measuring head on an ejector rod of the dial indicator 101 on a flange plane of the sealing bush 501, rotating the rotating mechanism 103, observing data of the dial indicator 101, and adjusting the sealing bush 501 to enable the data of full run-out of the upper end face of the dial indicator 101 to be within a required range.
Step nine, measuring the distance between the inner hole of the rear end gland of the sealing body 505 and the excircle of the sealing bush 501, adjusting the sealing body 505 to enable the distance between the inner hole of the rear end gland in the four directions of up, down, left and right to be within a required range, screwing the sealing fastening bolt 503 after centering is finished, and dismantling the centering device.
In addition, the centering installation method of the head seal device is basically the same as that of the tail seal device, and is not described herein.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (8)
1. A bearing type centering method for a ship installation tail pipe sealing device is characterized in that a special centering device is adopted and comprises a rotating mechanism, a magnetic meter frame, a dial indicator, an installation base, a connecting plate and a supporting seat,
the rotating mechanism comprises a bearing seat frame, a rolling bearing, a first bearing shaft, a second bearing shaft, a first pressing plate, a second pressing plate, a first set screw and a second set screw, wherein the bearing seat frame is an arc-shaped component, the bearing seat frame is provided with an upper boss along an outer arc section and a lower boss along an inner arc section, a mounting groove is formed between the upper boss and the lower boss, the first pressing plate is mounted at the end part of the upper boss, the second pressing plate is mounted at the end part of the lower boss, the first pressing plate and the second pressing plate are both arc-shaped, one side of the bearing seat frame facing the first pressing plate and one side of the first pressing plate facing the bearing seat frame are respectively provided with a first shaft mounting hole, the first bearing shaft is arranged between the two first shaft mounting holes, and the rolling bearing is sleeved on the first bearing shaft, the bearing seat frame faces one side of the second pressing plate, the second pressing plate faces one side of the second bearing seat frame and is respectively provided with a second shaft mounting hole, the second bearing shaft is arranged between the two second shaft mounting holes, the second bearing shaft is sleeved with a rolling bearing, the outer arc section of the bearing seat frame and the outer arc section of the first pressing plate are provided with first fastening screw holes, first fastening screws are arranged in the first fastening screw holes, the inner arc section of the bearing seat frame and the inner arc section of the second pressing plate are provided with second fastening screw holes, second fastening screws are arranged in the second fastening screw holes, the first fastening screws are vertical to the first bearing shaft, and the second fastening screws are vertical to the second bearing shaft,
the magnetic gauge stand is fixed on the outer arc section of the bearing seat frame through magnetic adsorption, the dial gauge is fixed on the magnetic gauge stand,
the mounting base is of a circular ring structure, a mounting channel is formed in the position, close to the outer arc, of the side portion of the mounting base along the circumferential direction of the mounting base, the second pressing plate, the lower boss and the second bearing shaft are arranged in the mounting channel, a bearing track is formed in the outer arc surface of the mounting base along the circumferential direction of the outer arc surface, a rolling bearing on the first bearing shaft is arranged in the bearing track, a plurality of base mounting holes are formed in the side wall of the mounting base in a penetrating mode along the circumferential direction,
a plurality of plate mounting holes corresponding to the seat mounting holes are arranged on the connecting plate in a penetrating way, the mounting base is mounted on the connecting plate through seat mounting bolts and seat mounting nuts, the lower end of the connecting plate is respectively provided with a long waist-shaped transverse adjusting slotted hole at two sides, first adjusting seat plates are arranged at two sides of the connecting plate in an outward extending way, first adjusting threaded holes are arranged in the first adjusting seat plates in a penetrating way, and first adjusting bolts are arranged in the first adjusting threaded holes,
the support seat is provided with two long waist-shaped vertical adjusting slotted holes, the transverse adjusting slotted holes and the longitudinal adjusting slotted holes are arranged in an intersecting manner to form mounting slotted holes and are fixed with plate mounting nuts through plate mounting bolts, the lateral part of the support seat extends outwards to be provided with a first adjusting bottom plate, one side of the first adjusting bottom plate, which is far away from the support seat, is provided with a third adjusting seat plate, the third adjusting seat plate is vertical to the first adjusting bottom plate, the top part of the first adjusting bottom plate is provided with a first reinforcing plate, the first reinforcing plate is connected with the support seat and the first adjusting bottom plate, the first reinforcing plate is positioned under the first adjusting bolts, third adjusting threaded holes are arranged on the third adjusting seat plate in a penetrating manner, third adjusting bolts are arranged in the third adjusting threaded holes, and support the lateral part of the connecting plate, a second adjusting seat plate is arranged on the supporting seat and is positioned right below the longitudinal adjusting slotted hole, a second adjusting threaded hole is arranged on the second adjusting seat plate in a penetrating manner, a second adjusting bolt is arranged in the second adjusting threaded hole and supports the lower part of the connecting plate,
the centering method comprises the following steps:
firstly, before a propeller shaft is installed, sleeving a head sealing device on the propeller shaft, moving the head sealing device to a flange end close to the propeller shaft, hoisting the propeller shaft, inserting the propeller shaft into a tail pipe, plugging the tail pipe to an installation position of the propeller shaft, moving the head sealing device to the installation position, hoisting and sleeving a tail sealing device on the propeller shaft, pre-fixing a front end seat plate of a sealing body on the tail pipe by using a sealing installation bolt, not screwing the sealing installation bolt, arranging an adjusting gasket between the sealing body and the tail pipe, and arranging a second elastic gasket between the sealing installation bolt and the sealing body;
secondly, hoisting the propeller at the installation position, adjusting the center of a taper hole of the propeller to be basically consistent with the center of a propeller shaft, sleeving the propeller on the propeller shaft, and leaving a space for arranging a dial indicator between the propeller and the sealing bush after the propeller is sleeved in place;
thirdly, setting up a centering device, determining the installation position of the centering device on the platform, placing the two supporting platforms at the installation position, installing the supporting seat, the connecting plate, the installation base and the rotating mechanism in place, and arranging the installation base outside the sealing body;
step four, fixing the magnetic gauge stand on the rotating mechanism in an adsorbing manner, installing a connecting rod and a dial indicator on the gauge stand, and checking the contact between a measuring head on a push rod of the dial indicator and the surface of the propeller shaft;
taking the excircle of the propeller shaft as a reference, manually rotating the rotating mechanism, observing data of the dial indicator, adjusting the mounting base to be concentric with the propeller shaft, locking the mounting bolts of the support seat and the plate on the connecting plate after adjustment, fixing the position of the centering device, locking the first adjusting bolt, the second adjusting bolt and the third adjusting bolt, rotating the rotating mechanism again, and observing whether the data of the dial indicator changes;
sixthly, removing the dial indicator and the connecting rod, finely adjusting the propeller and the propeller shaft to the mounting position, pre-fixing the flange end of the sealing bush on the propeller through a sealing fastening bolt, arranging a sealing gasket between the sealing bush and the propeller, and arranging a first elastic gasket between the sealing fastening bolt and the sealing bush;
step seven, installing the connecting rod and the dial indicator on the magnetic indicator frame again, contacting the measuring head on the ejector rod of the dial indicator with the outer surface of the sealing bush, rotating the rotating mechanism, observing the data of the dial indicator, and adjusting the sealing bush to enable the data of circular runout on the dial indicator to be within a required range;
rotating the dial indicator by ninety degrees or an angle suitable for measurement, arranging a measuring head on a push rod of the dial indicator on a flange plane of the sealing bush, rotating the rotating mechanism, observing data of the dial indicator, and adjusting the sealing bush to enable the data of full run-out of the upper end surface of the dial indicator to be within a required range;
and step nine, measuring the distance between the inner hole of the rear end gland of the sealing body and the excircle of the sealing bush, adjusting the sealing body to enable the distance between the inner hole of the rear end gland in the upper, lower, left and right directions to be within a required range, screwing the sealing fastening bolt after centering is finished, and removing the centering device.
2. The bearing centering method for the installation of the tail pipe sealing device of the ship as claimed in claim 1, wherein the number of the first shaft installation holes is 1, the number of the second shaft installation holes is 2, and the first shaft installation holes and the second shaft installation holes are arranged in a staggered manner along the length direction of the bearing seat frame.
3. The bearing centering method for a ship installation tail pipe sealing device according to claim 1, wherein the first pressing plate and the bearing seat frame, and the second pressing plate and the bearing seat frame are fixed by plate fastening bolts.
4. The centering device for the ship installation tail pipe sealing device according to claim 1, wherein the first shaft installation hole and the second shaft installation hole are both long waist holes, and a long axis of the shaft installation hole points to a center of a circular arc where the bearing seat frame is located.
5. The bearing centering method for the ship installation tail pipe sealing device according to claim 1, wherein a first gasket is arranged between the rolling bearing and the first pressure plate, and a second gasket is arranged between the rolling bearing and the second pressure plate.
6. The bearing type centering method for the ship installation tail pipe sealing device according to claim 1, wherein the installation base is composed of two semicircular ring-shaped seat members, two seat bosses are respectively provided at both ends of the two seat members, the seat bosses are provided at both sides of the seat members, and the two seat members are fixed with the fixing nuts by fixing bolts.
7. The bearing type centering method for the ship installation tail pipe sealing device according to claim 1, wherein a reinforcing rib is provided among the supporting base, the first adjusting base plate and the third adjusting base plate.
8. The bearing type centering method for the ship installation tail pipe sealing device according to claim 1, wherein a supporting platform is arranged at the bottom of the supporting seat.
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| CN202011050425.5A CN112339934B (en) | 2020-09-29 | 2020-09-29 | Bearing type centering method for ship installation tail pipe sealing device |
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| CN202011050425.5A CN112339934B (en) | 2020-09-29 | 2020-09-29 | Bearing type centering method for ship installation tail pipe sealing device |
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| CN112339934B CN112339934B (en) | 2023-12-08 |
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