CN116853449A - Propeller installation mechanism - Google Patents

Propeller installation mechanism Download PDF

Info

Publication number
CN116853449A
CN116853449A CN202310754039.1A CN202310754039A CN116853449A CN 116853449 A CN116853449 A CN 116853449A CN 202310754039 A CN202310754039 A CN 202310754039A CN 116853449 A CN116853449 A CN 116853449A
Authority
CN
China
Prior art keywords
shaft
propeller
oil
sealing
conical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310754039.1A
Other languages
Chinese (zh)
Inventor
胡哲
涂舸
李磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Marine Machinery Plant Co Ltd
Original Assignee
Wuhan Marine Machinery Plant Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Marine Machinery Plant Co Ltd filed Critical Wuhan Marine Machinery Plant Co Ltd
Priority to CN202310754039.1A priority Critical patent/CN116853449A/en
Publication of CN116853449A publication Critical patent/CN116853449A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
    • 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
    • B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
    • B63B73/49—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods by means of threaded members, e.g. screws, threaded bolts or nuts

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

A propeller mounting mechanism comprising a propeller shaft front end and a propeller shaft rear end; the front end and the rear end of the paddle shaft are arranged on the bracket, the rear end of the paddle shaft comprises a rear paddle shaft and a shaft core, the shaft core is arranged on the inner periphery of the front end of the paddle shaft, the left side of the shaft core is connected with the right side of the rear paddle shaft, the right end of the front end of the paddle shaft is provided with a clamping groove, and the left side of the connecting end is embedded in the clamping groove; a sealing ring and two sealing rings are respectively arranged between the left end and the right end of the side wall of the shaft core and the inner periphery of the front end of the propeller shaft; the axial oil groove is communicated with all the radial oil grooves, and the oil through holes are formed in the right side of the axial core and are communicated with the axial oil grooves. The design can greatly reduce the processing requirement on the conical surface of the inner hole of the propeller, so that the sealing fit precision of the front end of the propeller shaft and the rear end of the propeller shaft is higher.

Description

Propeller installation mechanism
Technical Field
The invention relates to an improvement of a propeller assembly technology, belongs to the field of propellers, and particularly relates to a propeller mounting mechanism.
Background
In the assembly process of the propeller, keyless hydraulic installation is widely used as a conventional installation process, the matching surfaces of the matched propellers and the propeller shaft are processed into inclined surfaces with a certain taper, the propellers and the propeller shaft are matched through the inclined surfaces, the propellers are lifted to the inclined surfaces of the propeller shaft by radial pressurization of a propeller hub body and pressurization of a hydraulic nut at the tail end, extrusion self-locking of the two inclined surfaces is realized, and therefore thrust is transmitted. However, for large propellers, the axial length of the inner hole of the hub body is usually more than 1.5m, the diameter is usually 600-800 mm, the annular oil groove and the longitudinal communication oil duct are required to be processed on the conical surface with the length, the processing difficulty is very high, the processing efficiency is very low, and the sealing precision requirement is difficult to achieve especially for the mechanical sealing fit of the inner hole and the outer conical surface, and the final hydraulic installation of the propeller is also influenced.
The Chinese patent application with the application number of CN202210168304.3 and the application date of 2022 and 2-23 discloses a keyless hydraulic connection installation method of a propeller, S31, cleaning a contact surface of the propeller, an oil groove and an oil hole by clean acetone, and sleeving an accessory on a stern shaft if a sealing ring accessory is arranged at the large end of the propeller; s32, hanging the screw propeller, sleeving the screw propeller on the stern shaft, screwing the hydraulic nut, and screwing the hydraulic nut by using a spanner tool; s33, injecting hydraulic oil into oil tanks of the axial hydraulic oil pump and the radial hydraulic oil pump, unscrewing a hydraulic nut and a choke plug on a propeller, starting the hydraulic oil pump, exhausting air in a system, and checking and confirming that no leakage exists at each interface; s34, respectively arranging two dial indicator brackets near the large end of the cone on the stern shaft, symmetrically installing the dial indicator brackets with the shaft center line, and enabling dial indicator contacts to contact with the large end face of the propeller so as to measure the pushing distance of the propeller. If the dial indicator bracket is not convenient to be arranged on the stern shaft but is arranged on the hull structure, two dial indicators are added for checking the relative displacement of the stern shaft and the hull, and the step S4 is to determine the initial push-in amount, but the comparison document still does not solve the problem of lower sealing matching precision of the inner hole and the outer conical surface of the propeller.
The disclosure of this background section is only intended to increase the understanding of the general background of the present patent application and should not be taken as an admission or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to solve the problem of lower sealing fit precision of an inner hole and an outer conical surface of a propeller in the prior art, and provides a propeller mounting mechanism with higher sealing fit precision of the inner hole and the outer conical surface of the propeller.
In order to achieve the above object, the technical solution of the present invention is: a propeller mounting mechanism comprising a propeller shaft front end and a propeller shaft rear end;
the front end and the rear end of the paddle shaft are arranged on the bracket, the rear end of the paddle shaft comprises a rear paddle shaft and a shaft core, the shaft core is arranged on the inner periphery of the front end of the paddle shaft, the left side of the shaft core is connected with the right side of the rear paddle shaft, the right end of the front end of the paddle shaft is provided with a clamping groove, and the left side of the connecting end is embedded in the clamping groove;
a sealing ring and two sealing rings are respectively arranged between the left end and the right end of the side wall of the shaft core and the inner periphery of the front end of the propeller shaft;
the axial oil grooves are communicated with all the radial oil grooves, and the right side of the axial core is provided with oil through holes which are communicated with the axial oil grooves;
one end of the hand pump penetrates through the connecting end through the connecting pipe and then is connected with the oil through hole of the shaft core.
Two ends of the inner periphery of the front end of the paddle shaft are respectively provided with a sealing groove and two sealing grooves, one sealing ring is embedded in one sealing groove, and the two sealing rings are embedded in the two sealing grooves.
The front end of the paddle shaft comprises a round surface end and a conical end, the right side of the round surface end is connected with the left side of the conical end, the clamping groove is arranged on the right side of the conical end, and the right side of the conical end is connected with the left side of the connecting end;
the diameter of the conical end is gradually decreased from left to right, and the inner diameters of the round surface end and the conical end are smooth surfaces;
the diameters of the round surface end, the conical end and the rear propeller shaft are sequentially reduced;
the left side of the round surface end is provided with a dial indicator.
The connecting end comprises an end face and a clamping end, the left side of the end face is connected with the right side of the clamping end, and the clamping end is embedded in the clamping groove;
the side of terminal surface is provided with oil pipe, and the side of block end is provided with two connectors, and the one end of two connectors is connected with oil pipe's one end, and the one end of hand pump is connected with oil pipe's the other end, and the other end and the oil hole intercommunication of two connectors.
The side surfaces of the end surfaces are positioned above and below the oil pipe and are respectively inserted with connecting screws;
the connecting screw penetrates through the end face and the clamping end in sequence and then is in threaded fit with the clamping groove.
An upper screw hole and a lower screw hole are respectively formed in the right side of the conical end and above and below the shaft core, the upper screw is in threaded fit with the upper screw hole, and the lower screw is in threaded fit with the lower screw hole;
the upper screw and the lower screw are arranged on the side wall of the end face.
The right side surface of the lower screw is connected with the left side of a connecting head, and the right side of the connecting head is connected with a hand pump through a connecting pipe;
the left side of going up the screw is provided with the piston, and the right side of going up the screw is provided with the screw plug, and the screw plug is connected with the one end of piston, and the other end of piston is connected with the right side of cone end.
The side wall of the rear end of the paddle shaft is provided with a protective sleeve, and the protective sleeve is fixed with the front end of the paddle shaft through two fixing bolts.
The protective sleeve comprises a cylindrical sleeve and a mounting pad, wherein the right side of the cylindrical sleeve is connected with the left side of the mounting pad, and the right side of the mounting pad is attached to the front end of the paddle shaft;
the connecting end of the cylindrical sleeve and the mounting pad is an arc-shaped surface;
the side of the mounting pad is provided with mounting holes corresponding to the two fixing bolts, and the corresponding fixing bolts are in threaded fit with the mounting holes to connect the mounting pad with the front end of the propeller shaft.
An annular groove is formed in the center of the inner periphery of the cylindrical sleeve, three sealing rings are arranged on the left side of the annular groove, and the three sealing rings are attached to the side wall of the rear propeller shaft;
a protective pad is arranged between the side surface of the mounting pad and the front end of the paddle shaft.
Compared with the prior art, the invention has the beneficial effects that:
1. in the propeller installation mechanism, the first sealing ring and the second sealing ring are respectively arranged between the left end and the right end of the side wall of the shaft core and the inner periphery of the front end of the propeller shaft, and the first sealing ring and the second sealing ring are arranged on the inner hole conical surface of the front end of the propeller shaft, so that the processing requirements on the inner hole conical surface of the propeller can be greatly reduced by means of the traditional structure of mechanical sealing with two conical surfaces, the sealing matching precision of the front end of the propeller shaft and the rear end of the propeller shaft is higher, the problem that the mechanical sealing is easy to leak after the inner hole of the propeller is pressurized and expanded in the installation process is solved, and the installation efficiency of the propeller is greatly improved. Therefore, the design has higher sealing matching precision and high installation efficiency.
2. According to the propeller installation mechanism, hydraulic oil is conveniently injected into the matched conical surface of the propeller and the propeller shaft, the oil injection port is designed at the center position of the propeller shaft, and is communicated with the oil hole in the longitudinal oil groove of the outer conical surface through the central oil hole of the propeller shaft, so that the hydraulic oil can enter the longitudinal oil groove through the oil port, thus entering all annular oil grooves on the conical surface, and forming oil pressure in the matched conical surface, so that the inner hole of the propeller expands. Therefore, the design is safe to use and stable to operate.
3. In the propeller installation mechanism, the two ends of the inner periphery of the front end of the propeller shaft are respectively provided with the first sealing groove and the second sealing groove, the first sealing ring is embedded in the first sealing groove, the second sealing ring is embedded in the second sealing groove, and in order to ensure the tightness of hydraulic oil during installation of the propeller, the sealing grooves are respectively designed at the two ends of the front end of the propeller shaft, and the sealing rings are also required to be installed in the sealing grooves during assembly of the propeller, so that the sealing requirement between two matched conical surfaces can be ensured during installation of the propeller, thereby ensuring that the inner hole of the propeller is effectively expanded, facilitating the installation of the propeller. Therefore, the design is convenient to seal and high in processing efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic structural view of a protective sheath according to the present invention.
Fig. 3 is a schematic structural view of a connection terminal according to the present invention.
Fig. 4 is a schematic structural view of the shaft core of the present invention.
Fig. 5 is a schematic view of the structure of the front end of the paddle shaft in the invention.
In the figure: the propeller shaft front end 1, the round surface end 101, the conical end 102, the clamping groove 103, the shaft core 2, the axial oil groove 21, the radial oil groove 22, the oil through hole 23, the first sealing groove 24, the second sealing groove 25, the first sealing ring 3, the second sealing ring 4, the propeller shaft rear end 5, the rear propeller shaft 51, the connecting end 6, the lower screw 61, the end surface 62, a connecting joint 63, the oil pipe 64, the second connecting joint 65, the connecting screw 66, the upper screw 67, the threaded plug 68, the piston 69, the clamping end 610, the protective sleeve 7, the cylindrical sleeve 71, the mounting pad 72, the connecting end 73, the annular groove 74, the mounting hole 75, the protective pad 76, the three sealing rings 77, the fixing bolt 8, the bracket 9, the hand pump 10, the hand pump 11 and the dial gauge 12.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 5, a propeller mounting mechanism comprising a propeller shaft front end 1 and a propeller shaft rear end 5;
the front end 1 of the paddle shaft and the rear end 5 of the paddle shaft are arranged on a bracket 9, the rear end 5 of the paddle shaft comprises a rear paddle shaft 51 and a shaft core 2, the shaft core 2 is arranged on the inner periphery of the front end 1 of the paddle shaft, the left side of the shaft core 2 is connected with the right side of the rear paddle shaft 51, the right end of the front end 1 of the paddle shaft is provided with a clamping groove 103, and the left side of the connecting end 6 is embedded in the clamping groove 103;
a sealing ring 3 and two sealing rings 4 are respectively arranged between the left end and the right end of the inner periphery of the front end 1 of the paddle shaft and the inner periphery of the front end 1 of the paddle shaft;
a plurality of radial oil grooves 22 are formed in the shaft core 2 in a vertical mode, an axial oil groove 21 is formed in the shaft core 2 in an axial mode, the axial oil groove 21 is communicated with all the radial oil grooves 22, an oil through hole 23 is formed in the right side of the shaft core 2, and the oil through hole 23 is communicated with the axial oil groove 21;
one end of the hand pump 11 penetrates through the connecting end 6 through a connecting pipe and then is connected with the oil through hole 23 of the shaft core 2.
Two ends of the side wall of the shaft core 2 are respectively provided with a sealing groove 24 and two sealing grooves 25, a sealing ring 3 is embedded in the sealing groove 24, and two sealing rings 4 are embedded in the two sealing grooves 25.
The front end 1 of the paddle shaft comprises a round surface end 101 and a conical end 102, wherein the right side of the round surface end 101 is connected with the left side of the conical end 102, a clamping groove 103 is formed in the right side of the conical end 102, and the right side of the conical end 102 is connected with the left side of the connecting end 6;
the diameter of the conical end 102 is gradually decreased from left to right, and the inner diameters of the round end 101 and the conical end 102 are smooth surfaces;
the diameters of the round end 101, the conical end 102 and the rear propeller shaft 51 are sequentially reduced;
the left side of the round end 101 is provided with a dial indicator 12.
The connecting end 6 comprises an end face 62 and a clamping end 610, the left side of the end face 62 is connected with the right side of the clamping end 610, and the clamping end 610 is embedded in the clamping groove 103;
the side of the end surface 62 is provided with an oil pipe 64, the side of the clamping end 610 is provided with two connectors 65, one end of the two connectors 65 is connected with one end of the oil pipe 64, one end of the hand pump 11 is connected with the other end of the oil pipe 64, and the other end of the two connectors 65 is communicated with the oil through hole 23.
The side surfaces of the end surface 62 are respectively inserted with connecting screws 66 above and below the oil pipe 64;
the connecting screw 66 sequentially penetrates through the end face 62 and the clamping end 610 and then is in threaded fit with the clamping groove 103.
An upper screw hole 104 and a lower screw hole 105 are respectively arranged on the right side of the conical end 102 and above and below the shaft core 2, an upper screw 67 is in threaded fit with the upper screw hole 104, and a lower screw 61 is in threaded fit with the lower screw hole 105;
the upper screw 67 and the lower screw 61 are arranged at the side wall of the end face 62.
The right side surface of the lower screw 61 is connected with the left side of a connector 63, and the right side of the connector 63 is connected with a hand pump 10 through a connecting pipe;
the left side of upper screw 67 is provided with piston 69, and the right side of upper screw 67 is provided with screw plug 68, and screw plug 68 is connected with the one end of piston 69, and the other end of piston 69 is connected with the right side of conical end 102.
The side wall of the propeller shaft rear end 5 is provided with a protective sleeve 7, and the protective sleeve 7 is fixed with the propeller shaft front end 1 through two fixing bolts 8.
The protective sleeve 7 comprises a cylindrical sleeve 71 and a mounting pad 72, wherein the right side of the cylindrical sleeve 71 is connected with the left side of the mounting pad 72, and the right side of the mounting pad 72 is attached to the front end 1 of the paddle shaft;
the connecting end 73 of the cylindrical sleeve 71 and the mounting pad 72 is an arc surface;
the side of the mounting pad 72 is provided with mounting holes 75 corresponding to the two fixing bolts 8, and the corresponding fixing bolts 8 are in threaded fit with the mounting holes 75 to connect the mounting pad 72 with the front end 1 of the propeller shaft.
An annular groove 74 is formed in the center of the inner periphery of the cylindrical sleeve 71, a three sealing ring 77 is arranged on the left side of the annular groove 74 on the inner periphery of the cylindrical sleeve 71, and the three sealing ring 77 is attached to the side wall of the rear propeller shaft 51;
a protective pad 76 is arranged between the side of the mounting pad 72 and the shaft front end 1.
The principle of the invention is explained as follows:
when the propeller is hydraulically mounted, grease is firstly smeared on the outer surfaces of the first sealing ring 3 and the second sealing ring 4, then the first sealing ring 3 and the second sealing ring 4 are put into the first sealing groove 24 and the second sealing groove 25 on the conical surface of the conical end 102, the shaft core 2 is sleeved on the conical surface of the conical end 102, then the hand pump 10 is manually operated, the parallel shaft core 2 moves along the front end 1 of the propeller shaft, the inner hole conical surface of the front end 1 of the propeller shaft is attached to the outer conical surface of the shaft core 2, meanwhile, the first sealing ring 3 and the second sealing ring 4 in the inner hole of the front end 1 of the propeller shaft are compressed, so that a sealing cavity is formed in the inner hole conical surface of the front end 1 of the propeller shaft, when the hand pump 10 reaches a set pressure value, the operation is stopped, and the dial indicator 12 is zeroed at the moment, and start two hand pumps 11 to pour hydraulic oil into the axle core 2 of the front end 1 of the propeller shaft, until there is hydraulic oil that oozes in the rear end 5 of the propeller shaft, stop operating two hand pumps 11 at this moment, operate one hand pump 10 instead, while lifting up the front end 1 of the propeller shaft along the axial direction, observe the dial gauge 12 of the rear end 5 of the propeller shaft, when the distance that the front end 1 of the propeller shaft moves along the conical surface of the propeller shaft reaches the preset value, stop operating one hand pump 10 pump, and let two hand pumps 11 pump pressure release, thus make the front end 1 of the propeller shaft lock tightly on conical surface of the rear end 5 of the propeller shaft, after the propeller is installed, dismantle one hand pump 10 and hand pump 11 pump, and finish through the lower screw 61, upper screw 67 locking.
Example 1:
a propeller installation mechanism, comprising a propeller shaft front end 1 and a propeller shaft rear end 5; the front end 1 and the rear end 5 of the propeller shaft are arranged on a bracket 9, the front end 1 and the rear end 5 of the propeller shaft are arranged on the bracket 9, the rear end 5 of the propeller shaft comprises a rear propeller shaft 51 and a shaft core 2, the shaft core 2 is arranged on the inner periphery of the front end 1 of the propeller shaft, the left side of the shaft core 2 is connected with the right side of the rear propeller shaft 51, the right end of the front end 1 of the propeller shaft is provided with a clamping groove 103, and the left side of the connecting end 6 is embedded in the clamping groove 103; a sealing ring 3 and two sealing rings 4 are respectively arranged between the left end and the right end of the side wall of the shaft core 2 and the inner periphery of the front end 1 of the propeller shaft; a plurality of radial oil grooves 22 are formed in the shaft core 2 in a vertical mode, an axial oil groove 21 is formed in the shaft core 2 in an axial mode, the axial oil groove 21 is communicated with all the radial oil grooves 22, an oil through hole 23 is formed in the right side of the shaft core 2, and the oil through hole 23 is communicated with the axial oil groove 21; one end of the hand pump 11 penetrates through the connecting end 6 through a connecting pipe and then is connected with the oil through hole 23 of the shaft core 2.
When in application, the method comprises the following steps: firstly, a hand pump 10 is manually operated, the rear end 5 of the propeller shaft is lifted towards the front end 1 of the propeller shaft, the shaft core 2 is tightly attached to the conical surface of the front end 1 of the propeller shaft, meanwhile, a sealing ring 3 and two sealing rings 4 in the inner hole of the front end 1 of the propeller shaft are compressed, so that a sealing cavity is formed in the conical surface of the inner hole of the front end 1 of the propeller shaft, when the hand pump 10 reaches a set pressure value, the operation is stopped, and the two hand pumps 11 are started to inject hydraulic oil into the shaft core 2 of the front end 1 of the propeller shaft until the hydraulic oil seeps out, at the moment, the two hand pumps 11 are stopped to operate, the hand pump 10 is operated instead, when the front end 1 of the propeller shaft is lifted along the axial direction, and when the axial moving distance of the front end 1 of the propeller shaft along the conical surface of the propeller shaft reaches a preset value, the hand pump 10 is stopped, and the two hand pumps 11 are decompressed, so that the shaft core 2 is tightly locked on the conical surface of the front end 1 of the propeller shaft, and the propeller installation is completed.
Example 2:
example 2 is substantially the same as example 1 except that:
the propeller installation mechanism is characterized in that two ends of the side wall of the shaft core 2 are respectively provided with a sealing groove 24 and two sealing grooves 25, a sealing ring 3 is embedded in the sealing groove 24, and two sealing rings 4 are embedded in the two sealing grooves 25; the front end 1 of the paddle shaft comprises a round surface end 101 and a conical end 102, wherein the right side of the round surface end 101 is connected with the left side of the conical end 102, a clamping groove 103 is formed in the right side of the conical end 102, and the right side of the conical end 102 is connected with the left side of the connecting end 6; the diameter of the conical end 102 is gradually decreased from left to right, and the inner diameters of the round end 101 and the conical end 102 are smooth surfaces; the diameters of the round end 101, the conical end 102 and the paddle shaft rear end 5 are sequentially reduced; the left side of the round end 101 is provided with a dial indicator 12.
When in application, the method comprises the following steps: in order to ensure the tightness of hydraulic oil during the installation of the propeller, sealing grooves are respectively designed on the front end 1 of the propeller shaft and the rear propeller shaft 51, sealing rings are also required to be installed in the sealing grooves during the assembly of the propeller, so that the sealing requirements between two matched conical surfaces can be ensured during the installation of the propeller, the effective expansion of an inner hole of the propeller is ensured, the installation of the propeller is convenient, in addition, a sealing ring structure is arranged on the installation conical surface, compared with the structure of the traditional mechanical seal, the precision requirement on a processing surface is effectively reduced, the mechanical processing amount is reduced, the processing efficiency is improved, a dial gauge 12 is installed on the end surface of the rear propeller shaft 5 of the propeller, the moving distance of the propeller along the conical surface of the propeller shaft in the installation process is recorded,
example 3:
example 3 is substantially the same as example 1 except that:
the propeller installation mechanism is characterized in that a plurality of radial oil grooves 22 are formed in a vertical mode in a shaft core 2, an axial oil groove 21 is formed in the shaft core 2 in an axial mode, the axial oil groove 21 is communicated with all the radial oil grooves 22, an oil through hole 23 is formed in the right side of the shaft core 2, the oil through hole 23 is communicated with the axial oil groove 21, the connecting end 6 comprises an end face 62 and a clamping end 610, the left side of the end face 62 is connected with the right side of the clamping end 610, and the clamping end 610 is embedded in the clamping groove 103; the side of the end face 62 is provided with an oil pipe 64, the side of the clamping end 610 is provided with two connectors 65, one end of each connector 65 is connected with one end of the oil pipe 64, one end of the hand-shake pump 11 is connected with the other end of the oil pipe 64, the other ends of the connectors 65 are communicated with the oil through holes 23, and the side of the end face 62 is positioned above and below the oil pipe 64 and is respectively inserted with a connecting screw 66; the connecting screw 66 sequentially penetrates through the end face 62 and the clamping end 610 and then is in threaded fit with the clamping groove 103.
When in application, the method comprises the following steps: in order to facilitate the injection of hydraulic oil into the conical surface of the shaft core 2 and the front end 1 of the propeller shaft, the oil injection port is designed at the central position of the front end 1 of the propeller shaft, and the hydraulic oil is communicated with the oil holes of the axial oil groove 21, the radial oil groove 22 and the oil through holes 23, so that the hydraulic oil can enter into each annular oil groove on the conical surface through the oil pipe 64 and form oil pressure in the matched conical surface, so that the inner hole of the front end 1 of the propeller shaft expands, the two hand pumps 11 are connected to inject the hydraulic oil into the oil holes of the propeller shaft, and the first hand pump 10 is connected to lift the propeller to the rear propeller shaft 51 of the propeller shaft.
The above description is merely of preferred embodiments of the present invention, and the scope of the present invention is not limited to the above embodiments, but all equivalent modifications or variations according to the present disclosure will be within the scope of the claims.

Claims (10)

1. A screw installation mechanism which is characterized in that: the propeller installation mechanism comprises a propeller shaft front end (1) and a propeller shaft rear end (5);
the paddle shaft front end (1) and the paddle shaft rear end (5) are both arranged on the bracket (9), the paddle shaft rear end (5) comprises a rear paddle shaft (51) and a shaft core (2), the shaft core (2) is arranged on the inner periphery of the paddle shaft front end (1), the left side of the shaft core (2) is connected with the right side of the rear paddle shaft (51), the right end of the paddle shaft front end (1) is provided with a clamping groove (103), and the left side of the connecting end (6) is embedded in the clamping groove (103);
a sealing ring (3) and two sealing rings (4) are respectively arranged between the left end and the right end of the side wall of the shaft core (2) and the inner periphery of the front end (1) of the propeller shaft;
a plurality of radial oil grooves (22) are formed in the shaft core (2) in a vertical mode, axial oil grooves (21) are formed in the shaft core (2) in an axial mode, the axial oil grooves (21) are communicated with all the radial oil grooves (22), oil through holes (23) are formed in the right side of the shaft core (2), and the oil through holes (23) are communicated with the axial oil grooves (21);
one end of the hand pump (11) penetrates through the connecting end (6) through a connecting pipe and then is connected with the oil through hole (23) of the shaft core (2).
2. A propeller mounting mechanism as claimed in claim 1, wherein: two ends of the inner periphery of the front end (1) of the propeller shaft are respectively provided with a sealing groove (24) and two sealing grooves (25), a sealing ring (3) is embedded in the sealing groove (24), and two sealing rings (4) are embedded in the two sealing grooves (25).
3. A propeller mounting mechanism as claimed in claim 2, wherein: the front end (1) of the paddle shaft comprises a round surface end (101) and a conical end (102), the right side of the round surface end (101) is connected with the left side of the conical end (102), a clamping groove (103) is formed in the right side of the conical end (102), and the right side of the conical end (102) is connected with the left side of the connecting end (6);
the diameter of the conical end (102) is gradually reduced from left to right, and the inner diameters of the round surface end (101) and the conical end (102) are smooth surfaces;
the diameters of the round surface end (101), the conical end (102) and the rear propeller shaft (51) are sequentially reduced;
the left side of the round end (101) is provided with a dial indicator (12).
4. A propeller mounting mechanism as claimed in claim 3, wherein: the connecting end (6) comprises an end face (62) and a clamping end (610), the left side of the end face (62) is connected with the right side of the clamping end (610), and the clamping end (610) is embedded in the clamping groove (103);
the side of terminal surface (62) is provided with oil pipe (64), and the side of block end (610) is provided with two connector (65), and the one end of two connector (65) is connected with the one end of oil pipe (64), and the one end of hand pump (11) is connected with the other end of oil pipe (64), and the other end and the oil hole (23) of two connector (65) communicate.
5. A propeller mounting mechanism as claimed in claim 4, wherein: the side surface of the end surface (62) is positioned above and below the oil pipe (64) and is respectively inserted with a connecting screw (66);
the connecting screw (66) sequentially penetrates through the end face (62) and the clamping end (610) and then is in threaded fit with the clamping groove (103).
6. A propeller mounting mechanism as claimed in claim 5, wherein: an upper screw hole (104) and a lower screw hole (105) are respectively formed in the right side of the conical end (102) above and below the shaft core (2), an upper screw (67) is in threaded fit with the upper screw hole (104), and a lower screw (61) is in threaded fit with the lower screw hole (105);
the upper screw (67) and the lower screw (61) are arranged on the side wall of the end face (62).
7. A propeller mounting mechanism as claimed in claim 6, wherein: the right side surface of the lower screw (61) is connected with the left side of a connecting head (63), and the right side of the connecting head (63) is connected with a hand pump (10) through a connecting pipe;
the left side of last screw (67) is provided with piston (69), and the right side of going up screw (67) is provided with screw plug (68), and screw plug (68) are connected with the one end of piston (69), and the other end of piston (69) is connected with the right side of conical end (102).
8. A propeller mounting mechanism as claimed in claim 1, wherein: the side wall of the propeller shaft rear end (5) is provided with a protective sleeve (7), and the protective sleeve (7) is fixed with the propeller shaft front end (1) through two fixing bolts (8).
9. A propeller mounting mechanism as claimed in claim 8, wherein: the protective sleeve (7) comprises a cylindrical sleeve (71) and a mounting pad (72), wherein the right side of the cylindrical sleeve (71) is connected with the left side of the mounting pad (72), and the right side of the mounting pad (72) is attached to the front end (1) of the propeller shaft;
the connecting end (73) of the cylindrical sleeve (71) and the mounting pad (72) is an arc-shaped surface;
the side of the mounting pad (72) is provided with mounting holes (75) corresponding to the two fixing bolts (8), and the corresponding fixing bolts (8) are in threaded fit with the mounting holes (75) to connect the mounting pad (72) with the front end (1) of the propeller shaft.
10. A propeller mounting mechanism as claimed in claim 9, wherein: an annular groove (74) is formed in the center of the inner periphery of the cylindrical sleeve (71), a three sealing ring (77) is arranged on the left side of the annular groove (74) in the inner periphery of the cylindrical sleeve (71), and the three sealing ring (77) is attached to the side wall of the rear propeller shaft (51);
a protective pad (76) is arranged between the side surface of the mounting pad (72) and the front end (1) of the paddle shaft.
CN202310754039.1A 2023-06-26 2023-06-26 Propeller installation mechanism Pending CN116853449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310754039.1A CN116853449A (en) 2023-06-26 2023-06-26 Propeller installation mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310754039.1A CN116853449A (en) 2023-06-26 2023-06-26 Propeller installation mechanism

Publications (1)

Publication Number Publication Date
CN116853449A true CN116853449A (en) 2023-10-10

Family

ID=88233219

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310754039.1A Pending CN116853449A (en) 2023-06-26 2023-06-26 Propeller installation mechanism

Country Status (1)

Country Link
CN (1) CN116853449A (en)

Similar Documents

Publication Publication Date Title
CN200988108Y (en) Conical hole centering fastening mechanism
CN116853449A (en) Propeller installation mechanism
CN103240324B (en) The swollen formation system of a kind of composite bimetal pipe liquid
CN220330507U (en) Propeller keyless hydraulic installation structure
CN216577654U (en) Bush press-fitting tool
CN114876935B (en) Internal and external balance type hydraulic nut for installing ship propeller and installation method thereof
CN104500583A (en) Bearing locating sleeve
CN105436868B (en) Axis hole interference fit assembly and disassembly hydraulic pressure load push-pull with releasing pressure automatically function
CN213800137U (en) Electric propulsion archaize sightseeing boat shafting sealing system
CN110595702B (en) Double-oil-pipe pumping pressure tool and hydraulic test method
CN209959866U (en) Double-cone wear-resistant locking sleeve for shaft system sealing
CN210908852U (en) Press mounting device for coupler
CN218532326U (en) Roller ring hydraulic locking device
CN111729970A (en) Reaming equal-diameter device and process method for buckling and pressing connector
CN201344011Y (en) Blowout preventer quick-connection device
CN216975380U (en) Novel hydraulic variable-pitch oil cylinder anti-leakage end cover
CN219344938U (en) Automatic locking and sealing device for pump body
CN217103941U (en) Emergency plugging die for clay gun machine
CN210484937U (en) Hose combined joint for large-drift-diameter high-pressure winding rubber pipe
CN201322056Y (en) Connection structure of coupling
CN213871599U (en) Connection composite rubber pipe convenient to splice
CN220302435U (en) Complete pressure-resistant test fixture for energy accumulator
CN220416031U (en) Oil-filled double-cone hydraulic coupling
CN104625696A (en) Method and tool for interference assembling conical-surface shaft and conical sleeve
GB2216972A (en) Umbilical connectors

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination