CN216593127U - Tail shaft clearance measuring tool of marine water lubricated bearing - Google Patents
Tail shaft clearance measuring tool of marine water lubricated bearing Download PDFInfo
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- CN216593127U CN216593127U CN202122639980.8U CN202122639980U CN216593127U CN 216593127 U CN216593127 U CN 216593127U CN 202122639980 U CN202122639980 U CN 202122639980U CN 216593127 U CN216593127 U CN 216593127U
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Abstract
The utility model discloses a tail shaft clearance measuring tool of a marine water lubricated bearing, which comprises a measuring scale assembly and a measuring hole, wherein the measuring hole is formed in the position of a tail shaft of a ship body tail shaft tube; the dipperstick subassembly includes the measuring stick and arranges in proper order that the twisting and connecting piece, sliding sleeve and retaining member on the measuring stick, the measuring stick is provided with the regional one of scale along length direction, the regional one of scale includes a plurality of numerical value scales, each numerical value scale is arranged according to the mode from big to little from the first end of measuring stick to the second end in proper order, twist and connect piece and sliding sleeve in proper order the movable sleeve locate on the measuring stick, twist and connect piece and measuring orifice screw fit, the second end of retaining member and measuring stick is provided with the internal thread section and the external screw thread section of looks adaptation respectively. Compared with the prior art, because of the measuring stick directly supports the rear axle sleeve of the tail shaft, need not to rely on the operation of feeling, so measure comparatively accurately, the while operation is more simple, convenient, use when being particularly suitable for boats and ships to inspect under water.
Description
Technical Field
The utility model relates to the technical field of ship measurement, in particular to a tail shaft clearance measuring tool of a marine water-lubricated bearing.
Background
The ship water lubrication bearing is used for supporting a shafting to run and is generally positioned underwater, the state of the water lubrication bearing directly influences the working condition of the whole propeller shaft system, when the abrasion loss is overlarge, the shafting is easy to vibrate overlarge to accelerate the abrasion and the vibration generation of the bearing due to the cantilever effect of a propeller, the safety and the reliability of the shafting are reduced, and the propulsion efficiency of a diesel engine is influenced.
At present, cost and lag time can be saved for a ship by replacing middle inspection by ship underwater inspection, the operation rate is improved, and the tail shaft clearance measurement of a water lubrication bearing adopts diver underwater measurement; and diver's measurement of launching, generally adopt conventional feeler gauge to measure the clearance, diver stretches into the feeler gauge from the through-hole on preventing the rope casing to measure the clearance between the rear axle sleeve of the tail shaft pipe of propeller shaft and the tail shaft bearing through the feeler gauge, then return to the surface of water and read feeler gauge measured data again, this kind of measurement mode is less because of the through-hole size, diver's inconvenient operation, and measure through feeling, measure comparatively inaccurate.
Accordingly, the present inventors have conducted intensive studies to develop the present invention.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is to provide
In order to achieve the purpose, the solution of the utility model is as follows:
a measuring tool for the gap of a tail shaft of a marine water-lubricated bearing comprises a measuring scale assembly and a measuring hole, wherein the measuring hole is formed in a tail shaft tube of a ship body; the dipperstick subassembly includes the measuring stick and arranges in proper order in twist union piece, sliding sleeve and retaining member on the measuring stick, the measuring stick is provided with the regional one of scale along length direction, the regional one of scale includes a plurality of numerical value scales, each the numerical value scale follows in proper order the first end of measuring stick is held to the second and is arranged according to the mode from big to small, twist the union piece with the sliding sleeve movable sleeve is located respectively on the measuring stick, just twist the union piece with measuring orifice screw fit, the retaining member with the second end of measuring stick is provided with internal thread section and the external screw thread section of looks adaptation respectively.
The measuring hole is internally embedded with a copper pipe, a plug is installed in the copper pipe, the inner side wall of the copper pipe is provided with an internal thread section, and the outer side wall of the plug is provided with an external thread section.
The plug is an inner hexagonal plug and is made of a copper material.
The screwing piece is a bolt, a through hole for inserting the measuring rod is formed in the screwing piece, the screwing piece comprises a big head end and a matching section connected with the big head end, and the matching section is in spiral matching with the measuring hole.
The sliding sleeve is of a cylindrical structure, a cylinder hole is formed in the sliding sleeve, and two ends of the cylinder hole respectively extend to the end face of the sliding sleeve.
The sliding sleeve is provided with a slit corresponding to the position of the first scale area, the sliding sleeve is provided with a second scale area corresponding to the first scale area, the second scale area comprises a plurality of numerical value scales, and the numerical value scales on the second scale area are sequentially arranged from the first end to the second end of the measuring rod in a mode from large to small.
The locking piece is a locking nut, a threaded hole is formed in the locking nut, and the threaded hole is provided with the internal thread section.
The first scale area is arranged between the middle part and the second end of the measuring rod, a starting point is arranged in the middle of the measuring rod, and the numerical scale on the starting point is the distance between the starting point and the end part of the first end of the measuring rod.
After adopting the structure, the utility model has the following beneficial effects: when measuring the clearance between the rear shaft sleeve of the stern tube and the stern tube bearing, a diver unscrews the plug from the measuring hole, then positions the screwing piece in the measuring hole, then inserts the measuring rod into the screwing piece and moves downwards to enable the first end of the measuring rod to be inserted to the bottom, then the sliding sleeve slides downwards to abut against the screwing piece, then the locking piece is fixed at the second end of the measuring rod, the locking piece and the sliding sleeve abut against each other to measure the clearance between the rear shaft sleeve of the propeller shaft of the ship and the stern tube bearing, then the diver detaches the screwing piece from the measuring hole, namely the measuring scale component is moved away from the corresponding position of the ship, then the diver reseals the plug in the measuring hole, then the measuring scale component is taken to the land, then relevant personnel check the clearance, and the measured data of the time can be compared with the measured data of the last time to obtain the abrasion loss, compared with the prior art, because the measuring rod directly abuts to the bottom, the hand feeling operation is not needed, so the measurement is more accurate, and the operation is simpler and more convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of a structure suitable for use on a ship according to the present invention.
In the figure:
1-measuring the hole; 2-measuring rod;
3-screwing the connecting piece; 31-big head end;
32-a mating segment; 4-a sliding sleeve;
5-a locking member; 6-rear shaft sleeve of the tail shaft tube;
7-tail shaft bearing; 8-plug.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
A stern shaft clearance measuring tool of a marine water-lubricated bearing is used for measuring the clearance between a rear shaft sleeve 6 and a stern shaft bearing 7 of a stern shaft tube of a ship body.
As shown in fig. 1-2, the device comprises a measuring hole 1 and a measuring scale assembly, wherein the measuring hole 1 is formed in the position of a ship hull corresponding to the tail shaft of a stern tube during conventional ship production; the measuring scale assembly comprises a measuring rod 2, a screwing and connecting piece 3, a sliding sleeve 4 and a locking piece 5, wherein the screwing and connecting piece 3, the sliding sleeve 4 and the locking piece 5 are sequentially arranged along the direction far away from the ship body, the measuring rod 2 is provided with a first scale area along the length direction, the first scale area comprises a plurality of numerical value scales, the size of each numerical value scale is sequentially arranged from the first end to the second end of the measuring rod 2 according to a gradually increasing mode, in other words, the first scale area is the same as the scale structure on a conventional graduated scale; wherein, twist and connect piece 3 and sliding sleeve 4 movable sleeve respectively and establish on measuring stick 2, and twist and connect piece 3 to compare in sliding sleeve 4 more close to the first end of measuring stick 2, twist and connect 3 and 1 screw fit of measuring orifice, be provided with internal thread section on the retaining member 5, the second end of measuring stick 2 is provided with external screw thread section, internal thread section on the retaining member 5 and the external screw thread section adaptation on the measuring stick 2.
Specifically, the two ends of the measuring hole 1 extend to the inner side of the rear shaft sleeve 6 of the stern tube of the ship body and the propeller shaft respectively, the inner side refers to the side close to the stern shaft bearing 7, the plug 8 is arranged in the measuring hole 1, the plug 8 is a conventional inner hexagonal plug, and the plug 8 is provided with an outer thread section, wherein a copper pipe is embedded in the measuring hole 1, one end, far away from the ship body, of the inner portion of the copper pipe is provided with an inner thread section, the inner thread section of the copper pipe is matched with the outer thread section of the plug 8, so that the plug 8 is installed in the measuring hole 1, and the measuring hole 1 is sealed. Through the arrangement of the plug 8, the measuring hole 1 is blocked when the measuring is not carried out, so that seawater can be prevented from entering between the rear shaft sleeve 6 of the tail shaft tube and the outer side wall of the tail shaft bearing 7 from the measuring hole 1 for a long time to corrode a ship; during measurement, the plug 8 is detached, and the measuring rod 2 is inserted into the copper pipe. In this embodiment, the plug 8 is made of a copper material.
The screwing piece 3 is a bolt, the screwing piece 3 includes a big head end 31 and a matching section 32, the matching section 32 is fixedly connected to the big head end 31, in this embodiment, the big head end 31 and the matching section 32 are of an integrally formed structure, the big head end 31 and the matching section 32 are respectively provided with openings, the two openings are communicated with each other to form a through hole together, in other words, the screwing piece 3 is provided with a through hole, and the through hole is used for the insertion of the measuring rod 2; wherein, cooperation section 32 and the copper pipe looks adaptation in the measuring hole 1, adopt the screw fit between the copper pipe in cooperation section 32 and the measuring hole 1 in this embodiment, cooperation section 32 is external screw thread cooperation section, and the lateral wall of cooperation section 32 is provided with the external screw thread section promptly, and the external screw thread section on the cooperation section 32 and the internal screw thread section adaptation in the copper pipe to screw in and connect 3 in the copper pipe or screw out from the copper pipe, and the terminal surface of screwing in and connecting 3 can the butt in the relevant position of hull after screwing in and connecting 3 in the copper pipe. In the present embodiment, the large head 31 is an inside-out large head.
The sliding sleeve 4 is of a cylindrical structure, a cylindrical hole is formed in the sliding sleeve 4, two ends of the cylindrical hole respectively extend to the end face of the sliding sleeve 4, and the size and the shape of the cylindrical hole are respectively matched with those of the measuring rod 2, so that the sliding sleeve 4 is inserted into the measuring rod 1 and slides along the measuring rod 1; wherein, for conveniently looking over the numerical value scale on the measuring stick 2, sliding sleeve 4 is provided with the seam corresponding to the scale region one of measuring stick 2, and the seam extends to the both ends of sliding sleeve 4.
Preferably, the first scale area is arranged on the outer side surface of the measuring rod 2, the end part of the first end of the measuring rod 2 corresponds to the zero-value scale, and the first scale area is distributed from the first end of the measuring rod 2 to the second end of the measuring rod 2; sliding sleeve 4 is the stainless steel sleeve, sliding sleeve 4 is provided with scale region two corresponding to the position of scale region one, and scale region two includes a plurality of numerical value scales, and each numerical value scale on the scale region two is arranged to the second end according to the mode from big to little along the first end of measuring stick 2 in proper order, and the numerical value scale on the scale region two has two to explain as the example in this embodiment, and two numerical value scales correspond 0 numerical value scale and 10 numerical value scale respectively, and 0 numerical value scale and 10 numerical value scale are arranged from the first end of measuring stick 2 to the second end in proper order. After the measurement is finished, the gap at the time is determined through the corresponding numerical value scale of the first scale area corresponding to the 0 numerical value scale in the second scale area.
Further, in this embodiment, the conventional measuring scale assembly reads the respective numerical scale (mm) in the first scale area and each numerical scale in the second scale area aligned with the second scale area, wherein each numerical scale in the second scale area is 0.1mm, that is, the precision reaches 0.1 mm.
In this embodiment, each numerical scale of the first scale region is set by taking the middle or middle-lower part of the measuring rod 2 as a starting point, and the numerical scale of the starting point in the first scale region is a distance value from the starting point to the first end of the measuring rod 2, so as to obtain the wear loss in the later period.
The utility model relates to a tail shaft clearance measuring tool of a marine water-lubricated bearing, which comprises the following components in the measuring process: the diver dives in the water, dismantle end cap 8, then insert measuring stick 2 from the position of measuring hole 1, screw in the measuring hole 1 of connecting piece 3, and make and screw connecting piece 3 butt on the hull, then insert the first end of measuring stick 2 to the end, sliding sleeve 4 slides the butt on screwing connecting piece 3 afterwards, then locking piece 5 spiral restricts sliding sleeve 4 between locking piece 5 and screwing connecting piece 3, spacing sliding sleeve 4, then take off measuring stick 2 with locking piece 5 and sliding sleeve 4 from measuring hole 1, then dismantle connecting piece 3 from measuring hole 1, screw in end cap 8 to measuring hole 1 again, can accomplish the measurement.
The diver takes the dipperstick subassembly back to the workboat, and the position of retaining member 5 does not change during dismantling the dipperstick subassembly and taking back on the bank this moment, so adopt 4 butt of sliding sleeve on retaining member 5, through the numerical scale on the measuring stick 2 that 0 numerical scale on the sliding sleeve 4 corresponds to obtain this measurement data.
Before shipping, the clearance between the rear shaft sleeve 6 of the stern shaft tube on the ship and the outer side wall of the stern shaft bearing 7 is measured by using the measuring scale assembly, and the numerical scale on the measuring rod 2 corresponding to the numerical scale of 0 on the sliding sleeve 4 is used as initial basic data. In addition, the measurement data of the current time can be compared with the measurement data of the last time to obtain the abrasion loss.
Therefore, the initial basic data is subtracted from the measured data to obtain the abrasion loss between the rear shaft sleeve 6 and the tail shaft bearing 7 of the tail shaft pipe, and according to a conventional repair limit value, namely whether the abrasion loss exceeds the fit clearance limit value, if so, the tail shaft pipe needs to enter a dock for repair.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a marine water lubricated bearing's tail-shaft clearance measuring tool which characterized in that: the device comprises a measuring scale assembly and a measuring hole, wherein the measuring hole is formed in a stern tube of a ship body; the dipperstick subassembly includes the measuring stick and arranges in proper order in twist union piece, sliding sleeve and retaining member on the measuring stick, the measuring stick is provided with the regional one of scale along length direction, the regional one of scale includes a plurality of numerical value scales, each the numerical value scale follows in proper order the first end of measuring stick is held to the second and is arranged according to the mode from big to small, twist the union piece with the sliding sleeve movable sleeve is located respectively on the measuring stick, just twist the union piece with measuring orifice screw fit, the retaining member with the second end of measuring stick is provided with internal thread section and the external screw thread section of looks adaptation respectively.
2. The marine water lubricated bearing tail shaft clearance measuring tool of claim 1, wherein: the measuring hole is internally embedded with a copper pipe, a plug is installed in the copper pipe, the inner side wall of the copper pipe is provided with an internal thread section, and the outer side wall of the plug is provided with an external thread section.
3. The marine water lubricated bearing tail shaft clearance measuring tool of claim 2, wherein: the plug is an inner hexagonal plug and is made of a copper material.
4. A stern shaft clearance measuring tool of a marine water-lubricated bearing according to claim 1 or 2, wherein: the screwing piece is a bolt, a through hole for inserting the measuring rod is formed in the screwing piece, the screwing piece comprises a big head end and a matching section connected with the big head end, and the matching section is in spiral matching with the measuring hole.
5. A stern shaft clearance measuring tool of a marine water-lubricated bearing according to claim 1 or 2, wherein: the sliding sleeve is of a cylindrical structure, a cylinder hole is formed in the sliding sleeve, and two ends of the cylinder hole respectively extend to the end face of the sliding sleeve.
6. The marine water lubricated bearing tail shaft clearance measuring tool of claim 5, wherein: the sliding sleeve is provided with a slit corresponding to the position of the first scale area, the sliding sleeve is provided with a second scale area corresponding to the first scale area, the second scale area comprises a plurality of numerical value scales, and the numerical value scales on the second scale area are sequentially arranged from the first end to the second end of the measuring rod in a mode from large to small.
7. The marine water lubricated bearing tail shaft clearance measuring tool of claim 1, wherein: the locking piece is a locking nut, a threaded hole is formed in the locking nut, and the threaded hole is provided with the internal thread section.
8. The marine water lubricated bearing tail shaft clearance measuring tool of claim 6, wherein: the first scale area is arranged between the middle part and the second end of the measuring rod, a starting point is arranged in the middle of the measuring rod, and the numerical scale on the starting point is the distance between the starting point and the end part of the first end of the measuring rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122639980.8U CN216593127U (en) | 2021-10-29 | 2021-10-29 | Tail shaft clearance measuring tool of marine water lubricated bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122639980.8U CN216593127U (en) | 2021-10-29 | 2021-10-29 | Tail shaft clearance measuring tool of marine water lubricated bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216593127U true CN216593127U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122639980.8U Active CN216593127U (en) | 2021-10-29 | 2021-10-29 | Tail shaft clearance measuring tool of marine water lubricated bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216593127U (en) |
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2021
- 2021-10-29 CN CN202122639980.8U patent/CN216593127U/en active Active
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