CN110774224A - Positioning type stern tube bearing dismounting device - Google Patents
Positioning type stern tube bearing dismounting device Download PDFInfo
- Publication number
- CN110774224A CN110774224A CN201911050990.9A CN201911050990A CN110774224A CN 110774224 A CN110774224 A CN 110774224A CN 201911050990 A CN201911050990 A CN 201911050990A CN 110774224 A CN110774224 A CN 110774224A
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- rod
- bearing
- ring
- stern tube
- buckling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a positioning type stern tube bearing dismounting device which comprises a stern tube, a bearing, a drawing ring sleeve, a plug column, a buckling mechanism, a limiting mechanism and a positioning mechanism, wherein the bearing is arranged on the stern tube; the telescopic screws are arranged on the outer sides of the drawing ring sleeve and the inserting column, and the arc limiting plates are driven to stretch and move by the rotation of the telescopic screws, so that the spacing between the arc limiting clamps is changed, the invention is suitable for positioning a stern tube without the diameter of the stern tube, and the drawing ring sleeve and the inserting column can quickly find the axis and be quickly butted.
Description
Technical Field
The invention relates to the field of marine accessories, in particular to a positioning type stern tube bearing dismounting device.
Background
At present, in the process of building large, medium and small ships, stern tube fore and stern bearings are installed at a slipway stage, the bearings are mostly in interference fit with holes, the bearings are guaranteed to be correctly pressed and installed in place through a professional pressing sleeve tool, meanwhile, the process requirements are met by measuring the gap between the shaft and the bearings, the cleanliness of the shaft holes, the oil cleanliness, the shaft load and the like at the later stage, and the ships can sail smoothly. The replacement of the bearings is also a difficult point during the construction process or long-term operation of the ship, and the bearings need professional devices for disassembling the bearings. Because the types and the sizes of various ship bearings are not consistent, the ship bearings are not provided with matched professional devices. Some factories adopt special tools to fix the magnetic drill, mill the groove through the garbage groove of the bearing, mill off the two sides of the bearing, and then remove the bearing. Still other plants use gouging to destructively remove the bearings. The above methods do not guarantee the integrity of the bearing and may also cause wear of the stern shaft bore surface.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: the positioning type stern tube bearing dismounting device is quick in positioning and convenient to dismount.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a positioning type stern tube bearing dismounting device comprises a stern tube, a bearing, a drawing ring sleeve, a plug column, a buckling mechanism, a limiting mechanism and a positioning mechanism; the bearing is arranged in the stern tube; the inner end of the plug-in ring sleeve is inserted into the bearing from one end of the bearing; the inner end of the inserting column is inserted into the bearing from the other end of the bearing; the upper side and the lower side of the inner end of the drawing ring sleeve are respectively provided with a clamping groove; the buckling mechanism comprises a buckling block, a buckling rod, a rotating shaft and an elastic body; the upper side and the lower side of the inner end of the splicing column are respectively provided with a rotating shaft; the rotating shafts are respectively and rotatably provided with a buckle rod; the upper side and the lower side of the inner end of the splicing column are respectively provided with an elastic body; one end of the elastic body is arranged on the inner end of the insertion column, and the other end of the elastic body is connected to the buckling rod; one end of the buckling rod is rotatably connected to the rotating shaft, and buckling blocks are respectively arranged on the outer sides of the other ends of the buckling rod; when the inner end of the inserting column is inserted into the bearing, the clamping block is driven to move along the inner side surface of the inner end of the drawing ring sleeve, and the clamping block is clamped in the clamping groove of the drawing ring sleeve; the limiting mechanism comprises a connecting ring and a limiting screw rod; connecting rings are arranged around the outer ends of the inserting columns; the upper side and the lower side of the connecting ring are respectively provided with a threaded hole; a limit screw is respectively installed in the threaded holes in a threaded manner; the limiting screw rods are respectively and rotatably abutted against the upper side and the lower side of the other end face of the bearing; positioning rings are arranged around the outer ends of the drawing ring sleeves; two positioning mechanisms are arranged; the positioning ring of the drawing ring sleeve and the connecting ring of the inserting column are both provided with a positioning mechanism; the positioning mechanism comprises an arc limiting plate and a telescopic screw rod; both sides of the connecting ring and the positioning ring are provided with threaded channels; the thread passages are all in threaded connection with a telescopic screw rod; the outer end of the telescopic screw rod is rotatably clamped with one side of the arc limiting plate respectively; the other side of the arc limiting plate is attached to and pressed on the outer side surface of the stern tube.
Further, the axial length of the buckling groove is larger than that of the buckling block.
Further, the device also comprises a rod withdrawing mechanism; the rod withdrawing mechanism comprises a drawing wire, a sliding block, a clamping rod, a driving stud and a driving rod; a driving cavity is arranged in the middle of the inner end of the insertion column; the upper side and the lower side of the outer part of the driving cavity are respectively provided with a sliding groove; the periphery of the inside of the driving cavity is provided with a threaded ring surface; the driving stud is in threaded rotary connection with the threaded ring surface of the driving cavity; one end of the clamping rod is fixed at one end of the driving stud, and the other end of the clamping rod is rotatably clamped with the sliding block; the upper side and the lower side of the sliding block are respectively connected to the sliding groove in a sliding manner through sliding teeth; the upper side and the lower side of one end of the sliding block are respectively connected with a wire drawing; one end of the wire drawing is connected to the sliding block, and the other end of the wire drawing is connected to the inner side of the clamping block; the other end of the driving stud is provided with a driving rod; one end of the driving rod is fixed at the other end of the driving stud, and the other end of the driving rod extends to the outer side of the outer end of the inserting column.
Furthermore, the upper side and the lower side of one end of the sliding block are respectively provided with a connecting plate; one end of the wire drawing is connected to the connecting plate.
Furthermore, the outer side surface of the buckling block is provided with an abutting inclined surface; the inner side of the periphery of one end of the drawing ring sleeve is provided with a conical abutting ring surface.
Furthermore, the outer ends of the pull ring sleeves are respectively provided with a pull ring.
The invention has the advantages of
1. The telescopic screws are arranged on the outer sides of the drawing ring sleeve and the inserting column, and the arc limiting plates are driven to stretch and move by the rotation of the telescopic screws, so that the spacing between the arc limiting clamps is changed, the invention is suitable for positioning a stern tube without the diameter of the stern tube, and the drawing ring sleeve and the inserting column can quickly find the axis and be quickly butted.
2. The invention designs a stern shaft bearing dismounting structure with ingenious structure, when the inner end of a plug-in post is inserted into the bearing, the clamping rod and the clamping block are driven to move towards the inner part of the inner end of the pull-out ring sleeve together, the clamping block is firstly pressed by the inner end surface of the pull-out ring sleeve, so that the clamping block and the clamping rod rotate inwards around the rotating shaft, then the clamping block and the clamping rod continue to move towards the inner part of the pull-out ring sleeve, when the clamping block reaches the clamping groove of the pull-out ring sleeve, the clamping block is pressed and clamped into the clamping groove by the elasticity of the elastic body, the pull-out ring sleeve and the plug-in post are locked in the bearing, then the limiting screw is rotated and pressed against the upper side and the lower side of the other end surface of the bearing, at the moment, the pull-out ring sleeve is directly pulled out, and the bearing and the.
3. The invention adds a rod withdrawing mechanism which is a structure for detaching the drawing ring sleeve and the inserting column after the bearing is detached, the driving rod drives the driving stud to rotate by rotating the driving rod, when the driving stud rotates and moves, the clamping rod drives the sliding block to move in the driving cavity, so that the sliding block pulls a drawn wire, and the drawn wire pulls the clamping block out from the clamping groove in a rotating manner, thereby separating the drawing ring sleeve from the inserting column.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the insertion post and the buckle mechanism of the present invention entering the inner end of the pull ring housing.
Fig. 3 is a schematic structural view of the fastening block being engaged in the fastening groove.
Fig. 4 is a schematic structural view of the reversing lever mechanism pulling the latch block to rotate.
Fig. 5 is a schematic structural view of the positioning mechanism of the outer end of the plugging column of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, a positioning type stern tube bearing dismounting device comprises a stern tube 1, a bearing 2, a drawing ring sleeve 3, a plug column 4, a buckling mechanism 5, a limiting mechanism 6 and a positioning mechanism 8; the bearing 2 is arranged inside the stern tube 1; the inner end of the splicing ring sleeve 3 is inserted into the bearing 2 from one end of the bearing 2; the inner end of the plug-in column 4 is inserted into the bearing 2 from the other end of the bearing 2; the upper side and the lower side of the inner end of the drawing ring sleeve 3 are respectively provided with a clamping groove 31; the buckling mechanism 5 comprises a buckling block 53, a buckling rod 52, a rotating shaft 51 and an elastic body 54; the upper side and the lower side of the inner end of the splicing column 4 are respectively provided with a rotating shaft 51; the rotating shafts 51 are respectively provided with a buckling rod 52 in a rotating way; the upper side and the lower side of the inner end of the splicing column 4 are respectively provided with an elastic body 54; one end of the elastic body 54 is arranged at the inner end of the plug column 4, and the other end is connected to the buckle rod 52; one end of the buckle rod 52 is rotatably connected to the rotating shaft 51, and the outer sides of the other ends are respectively provided with a buckle block 53; when the inner end of the insertion column 4 is inserted into the bearing 2, the clamping block 53 is driven to move along the inner side surface of the inner end of the drawing ring sleeve 3, and the clamping block 53 is clamped in the clamping groove 31 of the drawing ring sleeve 3; the limiting mechanism 6 comprises a connecting ring 61 and a limiting screw 62; the periphery of the outer end of the insertion column 4 is provided with a connecting ring 61; the upper side and the lower side of the connecting ring 61 are respectively provided with a threaded hole; a limit screw 62 is respectively installed in the threaded holes in a threaded manner; the limit screws 62 are respectively and rotatably abutted against the upper side and the lower side of the other end surface of the bearing 2. Under the condition of no external force, the elastic body 54 elastically connects the buckling rod 52 and keeps the buckling rod 52 and the plug column 4 connected in parallel in the axial direction, as shown in fig. 3, in the structure of the buckling rod 52 and the plug column 4 in the state of only the elastic body 54 elastically connecting. The positioning ring 36 is arranged around the outer end of the drawing ring sleeve 3; two positioning mechanisms 8 are arranged; the positioning ring 36 of the drawing ring sleeve 3 and the connecting ring 61 of the plug column 4 are both provided with a positioning mechanism 8; the positioning mechanism 8 comprises an arc-shaped limiting plate 82 and a telescopic screw 81; both sides of the connecting ring 61 and the positioning ring 36 are provided with thread channels; the thread passages are all in threaded connection with a telescopic screw 81; the outer ends of the telescopic screws 81 are rotatably clamped with one sides of the arc limiting plates 82 respectively; the other side of the arc limiting plate 82 is jointed and pressed on the outer side surface of the stern tube 1. The outer end of the telescopic screw 81 can be provided with a circular clamping tooth with a T-shaped cross section, and then one side of the clamping arc-shaped limiting plate 82 is provided with a circular clamping groove with a T-shaped cross section, so that the telescopic screw 81 is rotationally clamped with the T-shaped clamping groove of the clamping arc-shaped limiting plate 82 through the T-shaped clamping tooth.
As shown in fig. 1 to 5, it is further preferable that the axial length of the latching groove 31 is greater than the axial length of the latching piece 53, where the axial direction refers to the axial direction of the entire bearing 2, so as to facilitate the latching of the latching piece 53 in the latching groove 31 and leave a space for the latching piece 53 to disengage from the latching groove 31. Further, a rod withdrawing mechanism 7 is also included; the rod withdrawing mechanism 7 comprises a drawing wire 75, a sliding block 74, a clamping rod 73, a driving stud 72 and a driving rod 71; a driving 41 cavity is arranged in the middle of the inner end of the splicing column 4; the upper side and the lower side of the outside of the driving cavity 41 are respectively provided with a sliding groove 42; the periphery of the inner part of the cavity of the driving 41 is provided with a thread ring surface 43; the drive stud 72 is in threaded rotary connection with the threaded ring surface 43 of the drive chamber 41; one end of the clamping rod 73 is fixed at one end of the driving stud 72, and the other end of the clamping rod 73 rotates to clamp the sliding block 74; the upper side and the lower side of the sliding block 74 are respectively connected with the sliding groove 42 in a sliding way through sliding teeth 741; the upper side and the lower side of one end of the sliding block 74 are respectively connected with a wire drawing 75; one end of the wire drawing 75 is connected to the sliding block 74, and the other end is connected to the inner side of the buckling block 53; the other end of the driving stud 72 is provided with a driving rod 71; one end of the driving rod 71 is fixed at the other end of the driving stud 72, and the other end of the driving rod extends to the outer side of the outer end of the inserting column 4. Furthermore, the upper side and the lower side of one end of the sliding block 74 are respectively provided with a connecting plate 76; one end of the wire 75 is connected to the connecting plate 76. Further, an abutting inclined plane 531 is arranged on the outer side surface of the buckling block 53; the inner side of the periphery of one end of the drawing ring sleeve 3 is provided with a conical abutting ring surface 32. Furthermore, the outer ends of the pull-out ring sleeves 3 are respectively provided with a pull ring 33.
The telescopic screws 81 are arranged on the outer sides of the drawing ring sleeve 3 and the inserting column 4, the arc limiting plates 82 are driven to stretch and move by the rotation of the telescopic screws 81, so that the clamping distance of the arc limiting plates 82 is changed, the invention is suitable for positioning the stern tube 1 without the diameter of the stern tube, and the drawing ring sleeve 3 and the inserting column 4 can quickly find the axis and be quickly butted; the invention designs a screw shaft bearing dismounting structure with ingenious structure, when the inner end of a plug-in post 4 is inserted into a bearing 2, a buckle rod 52 and a buckle block 53 are driven to move towards the inner part of the inner end of a pull-out ring sleeve 3 together, the buckle block 52 is firstly pressed by the inner end surface of the pull-out ring sleeve 3, so that the buckle block 53 and the buckle rod 52 rotate inwards around a rotating shaft 51, then the buckle block 53 and the buckle rod 52 continue to move towards the inner part of the pull-out ring sleeve 3, when the buckle block 53 reaches a buckle groove 31 of the pull-out ring sleeve 3, the buckle block 53 is pressed by the elasticity of an elastic body 54 and clamped into the buckle groove 31, thus the pull-out ring sleeve 3 and the plug-in post 4 are locked in the bearing 2, then a limit screw 61 is rotated and pressed on the upper side and the lower side of the other end surface of the bearing 2, at the moment, the pull-out ring sleeve 3, the invention has the advantages of ingenious structural design and convenient use. The invention adds the rod withdrawing mechanism 7, the rod withdrawing mechanism 7 is used for detaching the drawing ring sleeve 3 and the inserting column 4 after the bearing 2 is detached, the driving rod 71 is rotated, the driving stud 72 is driven by the driving rod 71 to rotate, when the driving stud 72 rotates, the sliding block 74 is driven by the clamping rod 73 to move in the driving cavity 41, so that the sliding block 74 pulls the wire drawing 75, and the wire drawing 75 rotates and pulls the clamping block 53 out of the clamping groove 31, thereby separating the drawing ring sleeve 3 and the inserting column 4.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A positioning type stern tube bearing dismounting device is characterized by comprising a stern tube, a bearing, a drawing ring sleeve, a plug column, a buckling mechanism, a limiting mechanism and a positioning mechanism; the bearing is arranged in the stern tube; the inner end of the plug-in ring sleeve is inserted into the bearing from one end of the bearing; the inner end of the inserting column is inserted into the bearing from the other end of the bearing; the upper side and the lower side of the inner end of the drawing ring sleeve are respectively provided with a clamping groove; the buckling mechanism comprises a buckling block, a buckling rod, a rotating shaft and an elastic body; the upper side and the lower side of the inner end of the splicing column are respectively provided with a rotating shaft; the rotating shafts are respectively and rotatably provided with a buckle rod; the upper side and the lower side of the inner end of the splicing column are respectively provided with an elastic body; one end of the elastic body is arranged on the inner end of the insertion column, and the other end of the elastic body is connected to the buckling rod; one end of the buckling rod is rotatably connected to the rotating shaft, and buckling blocks are respectively arranged on the outer sides of the other ends of the buckling rod; when the inner end of the inserting column is inserted into the bearing, the clamping block is driven to move along the inner side surface of the inner end of the drawing ring sleeve, and the clamping block is clamped in the clamping groove of the drawing ring sleeve; the limiting mechanism comprises a connecting ring and a limiting screw rod; connecting rings are arranged around the outer ends of the inserting columns; the upper side and the lower side of the connecting ring are respectively provided with a threaded hole; a limit screw is respectively installed in the threaded holes in a threaded manner; the limiting screw rods are respectively and rotatably abutted against the upper side and the lower side of the other end face of the bearing; positioning rings are arranged around the outer ends of the drawing ring sleeves; two positioning mechanisms are arranged; the positioning ring of the drawing ring sleeve and the connecting ring of the inserting column are both provided with a positioning mechanism; the positioning mechanism comprises an arc limiting plate and a telescopic screw rod; both sides of the connecting ring and the positioning ring are provided with threaded channels; the thread passages are all in threaded connection with a telescopic screw rod; the outer end of the telescopic screw rod is rotatably clamped with one side of the arc limiting plate respectively; the other side of the arc limiting plate is attached to and pressed on the outer side surface of the stern tube.
2. The apparatus as claimed in claim 1, wherein the axial length of the snap groove is greater than the axial length of the snap block.
3. The locator stern tube bearing removal device of claim 2, further comprising a rod retracting mechanism; the rod withdrawing mechanism comprises a drawing wire, a sliding block, a clamping rod, a driving stud and a driving rod; a driving cavity is arranged in the middle of the inner end of the insertion column; the upper side and the lower side of the outer part of the driving cavity are respectively provided with a sliding groove; the periphery of the inside of the driving cavity is provided with a threaded ring surface; the driving stud is in threaded rotary connection with the threaded ring surface of the driving cavity; one end of the clamping rod is fixed at one end of the driving stud, and the other end of the clamping rod is rotatably clamped with the sliding block; the upper side and the lower side of the sliding block are respectively connected to the sliding groove in a sliding manner through sliding teeth; the upper side and the lower side of one end of the sliding block are respectively connected with a wire drawing; one end of the wire drawing is connected to the sliding block, and the other end of the wire drawing is connected to the inner side of the clamping block; the other end of the driving stud is provided with a driving rod; one end of the driving rod is fixed at the other end of the driving stud, and the other end of the driving rod extends to the outer side of the outer end of the inserting column.
4. The device for detaching the stern tube bearing as claimed in claim 3, wherein the sliding block has a connecting plate at each of upper and lower ends of one end thereof; one end of the wire drawing is connected to the connecting plate.
5. The positioning type stern tube bearing dismounting device as claimed in claim 1, wherein the outer side surface of the buckling block is provided with an abutting inclined surface; the inner side of the periphery of one end of the drawing ring sleeve is provided with a conical abutting ring surface.
6. The apparatus as claimed in claim 1, wherein the outer ends of the pull rings are each provided with a pull ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050990.9A CN110774224A (en) | 2019-10-31 | 2019-10-31 | Positioning type stern tube bearing dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050990.9A CN110774224A (en) | 2019-10-31 | 2019-10-31 | Positioning type stern tube bearing dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110774224A true CN110774224A (en) | 2020-02-11 |
Family
ID=69388175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911050990.9A Withdrawn CN110774224A (en) | 2019-10-31 | 2019-10-31 | Positioning type stern tube bearing dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110774224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111689416A (en) * | 2020-05-29 | 2020-09-22 | 广州文冲船舶修造有限公司 | Stern shaft dismounting tool and stern shaft dismounting method |
-
2019
- 2019-10-31 CN CN201911050990.9A patent/CN110774224A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111689416A (en) * | 2020-05-29 | 2020-09-22 | 广州文冲船舶修造有限公司 | Stern shaft dismounting tool and stern shaft dismounting method |
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| 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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200211 |