A movable ship rudder blade tapered hole processing device

Abstract

The present invention proposes a movable device for processing tapered holes of ship rudder blades. The device comprises a tapered hole boring bar passing through the rudder blade pintle seat, a sliding cutter head embedded in the groove of the tapered hole boring bar, and a large-end shelf plate and a small-end shelf plate clamping and fixing the tapered hole boring bar on the rudder blade pintle seat. The worm gear and the worm gear fit to drive the tapered hole boring bar to rotate in a circular motion, and the feed gear drives the trapezoidal screw to rotate, driving the tool on the sliding cutter head to move along the groove of the tapered hole boring bar, and the tool cuts the inner hole of the rudder blade pintle seat to process the tapered hole; the cutting wheel I drives the end face cutter bar to adjust the tool to process the large end face of the rudder blade pintle seat, and at the same time, the cutting wheel II drives the small end plane cutter bar to adjust the tool to process the small end face of the rudder blade pintle seat. The present invention uses the method of passing the tapered hole boring bar equipped with a sliding cutter head through the center of the rudder blade pintle seat, and the tool contacts the inner hole of the rudder pintle seat to process the tapered hole. The cutting wheel with different numbers of teeth is replaced according to the on-site conditions to adjust the cutting amount. The device is suitable for use as a tapered hole processing device.

Description

Technical Field

[0001] The invention relates to the boring processing of rudder blade tapered holes in the field of ships, and in particular to a movable ship rudder blade tapered hole processing device. Background Art

[0002] At present, the rudder blade is connected to the rudder column or the rudder arm by a pintle, and the pintle is fixed by a cone connection. The installation part of the rudder blade and the pintle needs to be processed into a tapered hole. Generally, the rudder blade is large in size and heavy in weight, and the existing tools cannot realize the processing of the rudder blade tapered hole. There is an urgent need for a device that can make a tooling according to the requirements of the rudder blade tapered hole, realize the processing of the tapered hole boring, and meet the requirements of the pintle cone connection and fixation. Summary of the invention

[0003] In order to solve the problem of on-site processing of the tapered hole of the rudder blade pintle, the present invention provides a movable ship rudder blade tapered hole processing device. The device passes a tapered hole boring bar equipped with a sliding cutter head through the center of the rudder blade pintle, fixes a large end frame plate and a small end frame plate equipped with bearings at appropriate places above and below the pintle, the tapered hole boring bar passes through the bearing and is fixed in the pintle, the tapered hole boring bar rotates under the drive of the worm gear, the sliding cutter head moves on the trapezoidal lead screw of the tapered hole boring bar, the tool contacts the inner hole of the pintle to process the tapered hole, and the cutting wheel with different numbers of teeth is replaced according to the on-site situation to adjust the cutting amount, so as to solve the technical problem of ship rudder blade tapered hole processing.

[0004] The solution adopted by the present invention to solve the technical problem is:

[0005] The movable ship rudder blade tapered hole processing device comprises a tapered hole boring bar passing through the rudder blade and rudder pintle seat, a sliding cutter head embedded in the groove of the tapered hole boring bar, and a large end frame plate and a small end frame plate clamping and fixing the tapered hole boring bar on the rudder blade and rudder pintle seat. The worm gear and the worm gear fit drive the tapered hole boring bar to rotate in a circular motion, the feed gear drives the trapezoidal screw to rotate, drives the tool on the sliding cutter head to move along the groove of the tapered hole boring bar, and the tool cuts the inner hole of the rudder blade and rudder pintle seat to perform tapered hole processing; the cutting wheel I drives the end face cutter bar to adjust the tool to perform cutting processing on the large end face of the rudder blade and rudder pintle seat, and at the same time, the cutting wheel II drives the small end plane cutter bar to adjust the tool to perform cutting processing on the small end face of the rudder blade and rudder pintle seat.

[0006] In order to further solve the technical problem to be solved by the present invention, in the movable ship rudder blade tapered hole processing device provided by the present invention, the sliding cutter head is a block structure, the lower part is provided with a through hole thread to connect it to the trapezoidal screw, the upper part is provided with a clamping tool core shaft to embed the tool and is locked and fixed by nut II and washer II, and the groove of the tapered hole boring rod is provided with a strip assembled with screw I to support the sliding cutter head.

[0007] Furthermore, one end of the trapezoidal screw is installed on the bushing of the screw bearing bracket, and the other end passes through the screw bearing seat connected to the tapered hole boring rod by bolt II. The slotted cylindrical head screw connects the screw bearing to the screw bearing seat, and the outer end of the trapezoidal screw is connected to the feed gear drive.

[0008] Furthermore, the worm wheel is connected to the tapered hole boring rod through the worm wheel key on the worm wheel bushing, and a clamp I is provided on the outside and fastened with bolt I, and the set screw connects the worm wheel and the worm wheel bushing to form an integrated structure; a large copper sleeve is provided on the inside and is clamped by a steel sleeve I and a top screw I, and the outer diameter of the steel sleeve I is connected to the inner ring of the large end frame plate.

[0009] Furthermore, the worm is fitted with the worm wheel, and a group of bearings are provided on the worm and assembled in the worm bearing housing. The worm bearing bracket connects the worm bearing housing to the worm frame seat plate, and the bearing pressure cover II and the bearing pressure cover III are fastened by bolts IV and nuts III; a bearing pressure cover I is installed on the worm bearing housing on one side of the worm; a V-belt pulley is connected to the other side through a flat key II, and clamps II and bolts V are provided on both sides of the V-belt pulley for fixing; a rib plate is provided at the bottom of the worm bearing housing for support and reinforcement.

[0010] Furthermore, the large end frame plate is a circular sheet structure, and the rudder blade and rudder pin seat are clamped and fixed by a supporting steel sleeve. A long wire pair is installed in the supporting steel sleeve. One end of the long wire pair is connected to the base nut and pressed on the rudder blade and rudder pin seat, and the other end is connected to the large end frame plate through a nut I and a washer I. A steel sleeve III is provided between the large end frame plate and the worm frame seat plate and is connected using a wire pair II. The large end frame plate is connected to the steel sleeve I to limit the tapered hole boring bar.

[0011] Furthermore, the small end shelf plate is a circular sheet structure, and the rudder blade and rudder pin seat are clamped and fixed by a steel sleeve II. A thread pair I is installed in the steel sleeve II. One end of the thread pair I is connected to the base nut and pressed on the rudder blade and rudder pin seat, and the other end is connected to the small end shelf plate through a nut I and a washer I. A small end copper sleeve with a sealing felt ring is installed on the small end shaft diameter of the tapered hole boring rod. The small end copper sleeve is clamped and adjusted with the top screw of the shelf plate by a small steel sleeve, and the small steel sleeve is connected to the inner ring of the small end shelf plate at the same time, so as to limit the tapered hole boring rod.

[0012] Furthermore, the end face tool rod crosses the tapered hole boring rod and locks the tool through a top screw II. The end face tool rod is installed in a steel casing by connecting it to a lead screw. The steel casing is provided with a limiting flat key I. The steel casing is connected to the tapered hole boring rod in the radial direction through a screw II. The pressure cover connects the lead screw cantilever to one side of the steel casing through a screw III. The outer end of the lead screw is provided with a cutting wheel I fastened by a pressure ring and a bolt III.

[0013] Furthermore, the small-end flat tool rod crosses the tapered hole boring rod and locks the tool through a top screw III. The small-end flat tool rod is installed in a small-end steel sleeve by connecting with a small lead screw. The small-end steel sleeve is provided with a limiting flat key III. The small-end steel sleeve is connected to the tapered hole boring rod in the radial direction through a screw II. The lead screw cover connects the small lead screw cantilever to one side of the small-end steel sleeve through a screw III. The outer end of the small lead screw is provided with a cutting wheel II fastened with a washer III and a bolt III.

[0014] Furthermore, a lifting ear is provided at the large end of the tapered hole boring bar for assembly; a bearing adjustment device is provided on the outer side of the small end of the tapered hole boring bar, one end of the bearing adjustment device is connected and fixed to the base, and the other end is tightened and positioned by a bearing seat with a thrust bearing.

[0015] Furthermore, the feed gear, cutting wheel I and cutting wheel II can be replaced with cutting wheels with different numbers of teeth to adjust the cutting amount according to the conditions on the construction site.

[0016] Positive effect: the present invention uses a tapered hole boring bar equipped with a sliding cutter head to pass through the center of the rudder blade rudder pintle seat, and fixes the large end frame plate and the small end frame plate equipped with bearings at appropriate places above and below the rudder pintle seat. The tapered hole boring bar passes through the bearing and is fixed in the rudder pintle seat. The tapered hole boring bar rotates under the drive of the worm gear, and the sliding cutter head moves on the trapezoidal screw of the tapered hole boring bar. The tool contacts the inner hole of the rudder pintle seat to process the tapered hole, and the cutting wheel with different numbers of teeth is replaced according to the on-site conditions to adjust the cutting amount. It is safe and reliable, has strong operability, is suitable for the processing of rudder blade rudder button holes, and reduces the construction difficulty, meets the process requirements, saves construction manpower, and improves construction efficiency. It is suitable for use as a movable ship rudder blade tapered hole processing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front cross-sectional view of the present invention;

[0018] Figure 2 This is the A-direction view of the present invention;

[0019] Figure 3 It is a BB cross-sectional view of the present invention;

[0020] Figure 4 It is a cross-sectional view of the present invention along the line CC;

[0021] Figure 5 It is a DD cross-sectional view of the present invention.

[0022] In the figure, 1. Bolt I, 2. Lifting ear, 3. Bolt II, 4. Slotted cylindrical head screw, 5. Feed gear, 6. Screw bearing, 7. Screw bearing seat, 8. Clamp I, 9. Worm key, 10. Worm bushing, 11. Set screw, 12. Worm, 13. Large copper sleeve, 14. Steel sleeve I, 15. Top screw I, 16. Large end shelf plate, 17. Nut I, 18. Washer I, 19. Long wire pair, 20. Support steel sleeve, 21. Foot nut, 22. Trapezoidal lead screw, 23. Taper boring bar, 24. Nut II, 25. Washer II, 26. Cutter mandrel, 27. Sliding cutter head, 28. Bushing, 29. Lead screw bearing bracket, 30. Sealing felt ring, 31. Small end copper sleeve, 32. Small end shelf plate, 33. Small steel sleeve, 34. Bearing seat, 35. Thrust bearing, 36. Bearing adjustment device, 37. Base, 38. Shelf top screw, 39. Steel sleeve Ⅱ, 40. Thread pair Ⅰ, 41. Insert, 42. Screw Ⅰ, 43. Top screw Ⅱ, 44. End face tool rod, 45. Flat key Ⅰ, 46. Lead screw, 47. Steel sleeve, 48. Screw Ⅱ, 49. Gland, 50. Screw Ⅲ, 51. Cutting wheel Ⅰ, 52. Press ring, 53. Bolt Ⅲ, 54. Bearing cover Ⅰ, 55. Bolt Ⅳ, 56. Bearing, 57. Nut Ⅲ, 58. Thread pair Ⅱ, 59. Steel sleeve Ⅲ, 60. Bearing Pressure cover II, 61. Worm bearing housing, 62. Bearing pressure cover III, 63. V-belt pulley, 64. Flat key II, 65. Clamp II, 66. Worm, 67. Bolt V, 68. Rib plate, 69. Worm frame seat plate, 70. Washer III, 71. Cutting wheel II, 72. Screw cover, 73. Small screw, 74. Small end steel sleeve, 75. Flat key III, 76. Small end flat arbor, 77. Top screw III, 78. Worm bearing bracket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0024] As shown in the figure, the movable ship rudder blade tapered hole processing device includes a tapered hole boring bar 23 passing through the rudder blade and rudder pintle seat, a sliding cutter head 27 embedded in the groove of the tapered hole boring bar 23, and the tapered hole boring bar 23 is clamped and fixed on the large end shelf plate 16 and the small end shelf plate 32 of the rudder blade and rudder pintle seat. The worm wheel 12 and the worm 66 are fitted to drive the tapered hole boring bar 23 to rotate in a circular motion, and the feed gear 5 drives the trapezoidal screw 22 to rotate, driving the tool on the sliding cutter head 27 to move along the groove of the tapered hole boring bar 23, and the tool cuts the inner hole of the rudder blade and rudder pintle seat to perform tapered hole processing; the cutting wheel I 51 drives the end face cutter bar 44 to adjust the tool to cut the large end face of the rudder blade and rudder pintle seat, and at the same time, the cutting wheel II 71 drives the small end plane cutter bar 76 to adjust the tool to cut the small end face of the rudder blade and rudder pintle seat.

[0025] The sliding cutter head 27 is a block structure, with a through-hole thread at the bottom to connect it to the trapezoidal lead screw 22, a clamping tool spindle 26 at the top to embed the tool and lock it with a nut II 24 and a washer II 25, and a strip 41 assembled with a screw I 42 is provided on the groove of the tapered hole boring rod 23 to support the sliding cutter head 27.

[0026] One end of the trapezoidal lead screw 22 is mounted on the bushing 28 of the lead screw bearing bracket 29, and the other end passes through the lead screw bearing seat 7 connected to the tapered hole boring rod 23 by bolt II3. The slotted cylindrical head screw 4 connects the lead screw bearing 6 to the lead screw bearing seat 7. The outer end of the trapezoidal lead screw 22 is connected to the feed gear 5 for driving.

[0027] The worm wheel 12 is connected to the tapered hole boring rod 23 through the worm wheel key 9 on the worm wheel bushing 10, and a clamp Ⅰ8 is provided on the outside and fastened with bolts Ⅰ1, and the set screws 11 connect the worm wheel 12 and the worm wheel bushing 10 to form an integrated structure; a large copper sleeve 13 is provided on the inside and is clamped by a steel sleeve Ⅰ14 and a top screw Ⅰ15, and the outer diameter of the steel sleeve Ⅰ14 is connected to the inner ring of the large end frame plate 16.

[0028] The worm 66 is fitted with the worm wheel 12, and a group of bearings 56 are provided on the worm 66 and assembled in the worm bearing housing 61. The worm bearing bracket 78 connects the worm bearing housing 61 to the worm frame seat plate 69, and the bearing pressure cover II 60 and the bearing pressure cover III 62 are fastened by bolts IV 55 and nuts III 57; a bearing pressure cover I 54 is installed on the worm bearing housing 61 on one side of the worm 66; the other side is connected to a V-belt pulley 63 through a flat key II 64, and clamps II 65 and bolts V 67 are provided on both sides of the V-belt pulley 63 for fixing; a rib plate 68 is provided at the lower part of the worm bearing housing 61 for support and reinforcement.

[0029] The large end frame plate 16 is a circular sheet structure, and the rudder blade and rudder pintle seat is clamped and fixed by a supporting steel sleeve 20. A long wire pair 19 is assembled in the supporting steel sleeve 20. One end of the long wire pair 19 is connected to the base nut 21 and pressed on the rudder blade and rudder pintle seat, and the other end is connected to the large end frame plate 16 through a nut I 17 and a washer I 18. A steel sleeve III 59 is provided between the large end frame plate 16 and the worm frame seat plate 69 and is connected by a wire pair II 58. The large end frame plate 16 is connected to the steel sleeve I 14, so that the tapered hole boring rod 23 is limited.

[0030] The small end shelf plate 32 is a circular sheet structure, and the rudder blade and rudder pin seat is clamped and fixed by a steel sleeve II 39. A thread pair I40 is installed in the steel sleeve II 39. One end of the thread pair I40 is connected to the base nut 21 and pressed on the rudder blade and rudder pin seat, and the other end is connected to the small end shelf plate 32 through a nut I17 and a washer I18. A small end copper sleeve 31 with a sealing felt ring 30 is installed on the small end shaft diameter of the tapered hole boring rod 23. The small end copper sleeve 31 is clamped and adjusted with the shelf plate top screw 38 through a small steel sleeve 33. The small steel sleeve 33 is also connected to the inner ring of the small end shelf plate 32, so that the tapered hole boring rod 23 is limited.

[0031] The end face tool rod 44 crosses the tapered hole boring rod 23 and locks the tool through the top screw Ⅱ43. The end face tool rod 44 is installed in the steel sleeve 47 by connecting with the screw 46. The steel sleeve 47 is provided with a limiting flat key Ⅰ45. The steel sleeve 47 is connected to the tapered hole boring rod 23 in the radial direction through the screw Ⅱ48. The pressure cover 49 cantilever connects the screw 46 to one side of the steel sleeve 47 through the screw Ⅲ50. The outer end of the screw 46 is provided with a cutting wheel Ⅰ51 fastened by a pressure ring 52 and a bolt Ⅲ53.

[0032] The small-end flat tool rod 76 crosses the tapered hole boring rod 23 and locks the tool through the top screw III 77. The small-end flat tool rod 76 is installed in the small-end steel sleeve 74 by connecting with the small lead screw 73. The small-end steel sleeve 74 is provided with a limiting flat key III 75. The small-end steel sleeve 74 is connected to the tapered hole boring rod 23 in the radial direction through the screw II 48. The lead screw cover 72 cantilever connects the small lead screw 73 to one side of the small-end steel sleeve 74 through the screw III 50. The outer end of the small lead screw 73 is provided with a cutting wheel II 71 fastened with a washer III 70 and a bolt III 53.

[0033] The large end of the tapered hole boring rod 23 is provided with a lifting ear 2 for assembly; the outer side of the small end of the tapered hole boring rod 23 is provided with a bearing adjustment device 36, one end of the bearing adjustment device 36 is connected and fixed to the base 37, and the other end is tightened and positioned by a bearing seat 34 with a thrust bearing 35.

[0034] The feed gear 5, the cutting wheel I51 and the cutting wheel II71 can be replaced with cutting wheels with different numbers of teeth to adjust the cutting amount according to the conditions on the construction site.

[0035] Working principle:

[0036] 1. Make a movable ship rudder blade taper hole processing device:

[0037] ① The size of the tapered hole boring bar 23 should be appropriate. According to the requirements of the rudder blade and the rudder pintle, different tapers should be selected when making the tapered hole boring bar, and processing and installation allowances should be left during design;

[0038] ② When manufacturing the trapezoidal lead screw 22, the sliding cutter head 27, and the feed gear 5, they must be processed in pairs;

[0039] ③ According to the size of the rudder pintle seat and the construction space, the large end shelf plate 16 and the small end shelf plate 32 are processed. The size of the shelf plate should be appropriate. If it is too big, it will not fit. If it is too small, the processing size will not be enough.

[0040] ④ The feed gear 5, the feed wheel Ⅰ51 and the feed wheel Ⅱ71 should be processed with several more numbers of teeth to adjust the feed amount;

[0041] ⑤ The end face cutter bar 44 and the small end plane cutter bar 76 are processed according to the size of the plane on the rudder pintle seat, so that the plane cutter can process the entire plane;

[0042] ⑥ According to the size of the tapered hole boring bar 23, a large copper sleeve 13, a steel sleeve I 14, a small end copper sleeve 31, and a small steel sleeve 33 are manufactured.

[0043] 2. Assembling the rudder blade of a movable ship rudder blade tapered hole processing device:

[0044] ① Install the large copper sleeve 13, steel sleeve I 14, top screw I 15, small end copper sleeve 31, small steel sleeve 33, and frame plate top screw 38 on the large end frame plate 16 and the small end frame plate 32;

[0045] ② Weld the foot nut 21 at a suitable place above the pintle seat, install the nut Ⅰ17, washer Ⅰ18, filament pair 19, and support steel sleeve 20 on the large end frame plate 16 and connect them with the foot nut 21, and put the small end frame plate 32 at a suitable place below the pintle seat;

[0046] ③ Insert the tapered hole boring bar 23 from top to bottom through the large copper sleeve 13 and the small copper sleeve 33;

[0047] ④ Install the worm wheel 12 on the tapered hole boring bar 23, and fix the worm 66 on the large end frame plate 16 through the worm bearing bracket 78 and the worm bearing housing 61 to cooperate with the worm wheel 12;

[0048] ⑤ A V-belt pulley 63 is mounted at one end of the worm 66 for connecting to a drive motor;

[0049] ⑥ Roughly align the tapered hole boring rod 23 through the top screw Ⅰ15 on the large end shelf plate 16 and the shelf plate top screw 38 on the small end shelf plate 31 so that it is in the center of the rudder pintle seat.

[0050] Working process:

[0051] After the processing device is installed, the trapezoidal lead screw 22 is rotated to make the tool on the sliding cutter head 27 contact with the inner hole of the pintle seat, and the worm wheel 12 and the worm 66 are used for driving, so as to drive the tapered hole boring bar 23 and the sliding cutter head 27 to perform circular motion to process the inner hole of the pintle seat, and the feed amount of the tool is controlled by adjusting the feed gear 5, and the adjustment is repeated until the inner hole of the pintle seat is processed. After the inner hole is processed, the end face tool bar is installed to process the end face of the pintle seat, and the feed wheel I51 and the feed wheel II71 are adjusted to control the feed amount of the tool to perform end face cutting processing; after all the processing, the processing device is disassembled.

[0052] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A movable ship rudder blade tapered hole processing device, Its characteristics are: include: A tapered hole boring bar (23) passing through the rudder blade pintle seat, a sliding cutter head (27) embedded in the groove of the tapered hole boring bar (23), and a large end frame plate (16) and a small end frame plate (32) clamping and fixing the tapered hole boring bar (23) to the rudder blade pintle seat; The worm wheel (12) and the worm (66) are fitted to drive the tapered hole boring bar (23) to rotate in a circular motion, and the feed gear (5) drives the trapezoidal screw (22) to rotate, driving the tool on the sliding cutter head (27) to move along the groove of the tapered hole boring bar (23), and the tool cuts the inner hole of the rudder blade and rudder pintle seat to perform tapered hole processing; the cutting wheel I (51) drives the end face cutter bar (44) to adjust the tool to perform cutting of the large end face of the rudder blade and rudder pintle seat, and at the same time, the cutting wheel II (71) drives the small end plane cutter bar (76) to adjust the tool to perform cutting of the small end face of the rudder blade and rudder pintle seat; The sliding cutter head (27) is a block-shaped structure, with a through-hole thread at the bottom so that it can be connected to the trapezoidal lead screw (22), and a clamping tool spindle (26) is provided at the top to embed the cutter and lock it with a nut II (24) and a washer II (25). The groove of the tapered hole boring bar (23) is provided with an insert strip (41) assembled with a screw I (42) to support the sliding cutter head (27); The large end frame plate (16) is a circular sheet structure, and the rudder blade rudder pintle seat is clamped and fixed by a supporting steel sleeve (20). A long wire pair (19) is installed in the supporting steel sleeve (20). One end of the long wire pair (19) is connected to a foot nut (21) and pressed on the rudder blade rudder pintle seat, and the other end is connected to the large end frame plate (16) through a nut I (17) and a washer I (18). A steel sleeve III (59) is provided between the large end frame plate (16) and the worm frame seat plate (69) and is connected by a wire pair II (58). The large end frame plate (16) is connected to the steel sleeve I (14), so that the tapered hole boring bar (23) is limited. The small end frame plate (32) is a circular sheet structure, and the rudder blade rudder pin seat is clamped and fixed by a steel sleeve II (39). A thread pair I (40) is installed in the steel sleeve II (39). One end of the thread pair I (40) is connected to a base nut (21) and pressed on the rudder blade rudder pin seat, and the other end is connected to the small end frame plate (32) through a nut I (17) and a washer I (18). A small end copper sleeve (31) with a sealing felt ring (30) is installed on the small end shaft diameter of the tapered hole boring rod (23). The small end copper sleeve (31) is clamped and adjusted with a frame plate top screw (38) through a small steel sleeve (33). The small steel sleeve (33) is also connected to an inner ring of the small end frame plate (32) so that the tapered hole boring rod (23) is limited.

2. A movable ship rudder blade tapered hole processing device according to claim 1, Its characteristics are: One end of the trapezoidal lead screw (22) is mounted on a bushing (28) of a lead screw bearing bracket (29), and the other end passes through a lead screw bearing seat (7) connected to a tapered hole boring rod (23) via a bolt II (3). A slotted cylindrical head screw (4) connects the lead screw bearing (6) to the lead screw bearing seat (7). The outer end of the trapezoidal lead screw (22) is connected to a feed gear (5) for driving.

3. A movable ship rudder blade tapered hole processing device according to claim 1, Its characteristics are: The worm wheel (12) is connected to the tapered hole boring rod (23) via a worm wheel key (9) on the worm wheel bushing (10); a clamp I (8) is provided on the outside and is fastened with a bolt I (1); a set screw (11) connects the worm wheel (12) and the worm wheel bushing (10) to form an integrated structure; a large copper sleeve (13) is provided on the inside and is clamped by a steel sleeve I (14) and a top screw I (15); the outer diameter of the steel sleeve I (14) is connected to the inner ring of the large end frame plate (16).

4. A movable ship rudder blade tapered hole processing device according to claim 1, Its characteristics are: The worm (66) is fitted with the worm wheel (12); a group of bearings (56) are provided on the worm (66) and assembled in a worm bearing housing (61); a worm bearing bracket (78) connects the worm bearing housing (61) to a worm frame seat plate (69); a bearing pressure cover II (60) and a bearing pressure cover III (62) are connected and fastened by bolts IV (55) and nuts III (57); a bearing pressure cover I (54) is installed on the worm bearing housing (61) on one side of the worm (66); a V-belt pulley (63) is connected on the other side by a flat key II (64); clamps II (65) and bolts V (67) are provided on both sides of the V-belt pulley (63) for fixing; and a rib plate (68) is provided at the lower part of the worm bearing housing (61) for support and reinforcement.

5. A movable ship rudder blade tapered hole processing device according to claim 1, Its characteristics are: The end face tool rod (44) crosses the tapered hole boring rod (23) and locks the tool through the top screw II (43). The end face tool rod (44) is installed in the steel sleeve (47) by connecting with the lead screw (46). The steel sleeve (47) is provided with a limit flat key I (45). The steel sleeve (47) is connected to the tapered hole boring rod (23) in the radial direction through the screw II (48). The pressure cover (49) cantilever connects the lead screw (46) to one side of the steel sleeve (47) through the screw III (50). The outer end of the lead screw (46) is provided with a cutting wheel I (51) fastened by a pressure ring (52) and a bolt III (53).

6. A movable ship rudder blade tapered hole processing device according to claim 1, Its characteristics are: The small end flat tool rod (76) crosses the tapered hole boring rod (23) and locks the tool through a top screw III (77). The small end flat tool rod (76) is installed in a small end steel sleeve (74) by connecting with a small lead screw (73). The small end steel sleeve (74) is provided with a limiting flat key III (75). The small end steel sleeve (74) is connected to the tapered hole boring rod (23) in the radial direction through a screw II (48). The lead screw cover (72) cantilever connects the small lead screw (73) to one side of the small end steel sleeve (74) through a screw III (50). The outer end of the small lead screw (73) is provided with a cutting wheel II (71) fastened by a washer III (70) and a bolt III (53).

7. A movable ship rudder blade tapered hole processing device according to claim 1, Its characteristics are: The large end of the tapered hole boring bar (23) is provided with a lifting ear (2) for assembly; the small end of the tapered hole boring bar (23) is provided with a bearing adjustment device (36) on the outside; one end of the bearing adjustment device (36) is connected and fixed to the base (37), and the other end is tightened and positioned by a bearing seat (34) with a thrust bearing (35).

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