Marine rudder shaft sleeve drilling device

Abstract

The invention relates to the field of workpiece turning, in particular to a marine rudder shaft sleeve drilling device. The technical problems that when an existing drilling device drills a shaft sleeve, the shaft sleeve is not stable enough, a drilled hole is not smooth enough, and then the drilling effect of the shaft sleeve is poor are solved. A marine rudder shaft sleeve drilling device comprises an outer frame, a drilling box is fixedly connected to the outer frame, a motor is fixedly connected to the drilling box, and a transmission gear is fixedly connected to an output shaft of the motor. Drill bits and a driving wheel are driven by a motor to rotate together, the driving wheel enables a rotating shaft to rotate through a belt, the rotating shaft rotates to enable a fixed gear and a shaft sleeve to transversely reciprocate together through a threaded block, and the shaft sleeve reciprocates to intermittently drill through the two drill bits; and the fixed gear transversely reciprocates to enable the rotating shaft to intermittently rotate by a certain angle through the rack and the overrun clutch, so that the shaft sleeve is automatically replaced with a new drilling surface after each time of drilling, and the drilling efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of workpiece turning, and more particularly to a drilling device for a marine rudder shaft sleeve. Background Technology

[0002] The rudder bushing is an essential component of the ship's hull. To ensure smoother movement between the bushing and the shaft, workers typically drill holes in the bushing during its machining process. These holes are then used to fill the interior with lubricant. During the drilling process, workers often drill multiple surfaces of the bushing to improve the efficiency of lubricant filling.

[0003] Current drilling devices do not automatically lock the bushing during drilling, which makes it easy for the bushing to rotate and become unstable during movement and drilling. Furthermore, existing drilling devices do not apply pressure around the drilled area of ​​the bushing, resulting in uneven holes after drilling and thus poor drilling results. Summary of the Invention

[0004] To overcome the above-mentioned shortcomings, the present invention provides a drilling device for marine rudder shaft sleeves, which can lock the sleeve during drilling to make the sleeve more stable and apply pressure to the area around the drilled part to make the hole after drilling smoother, thereby enhancing the drilling effect.

[0005] The technical solution is as follows: A drilling device for a marine rudder shaft sleeve includes an outer frame, a groove on the top of the outer frame, and an elongated hole on one side of the top of the outer frame. The elongated hole and the groove are parallel to each other. A drilling box is fixedly connected to the outer frame, and a motor is fixedly connected to the drilling box. A transmission gear is fixedly connected to the output shaft of the motor. Two drill bits are rotatably connected to one side of the drilling box. A driven gear is fixedly connected to the end of each drill bit near the transmission gear. The transmission gear meshes with the two driven gears respectively. A reciprocating movement mechanism is provided on the drill bit. A steering mechanism is provided on the reciprocating movement mechanism. A bushing is provided on the steering mechanism. Several fixing holes are provided at both ends of the bushing. The reciprocating movement mechanism is used to drive the bushing to reciprocate through the drill bit for drilling. The steering mechanism is used to intermittently rotate the bushing to change the drilling position.

[0006] As a preferred embodiment of the present invention, the reciprocating moving mechanism includes a driving wheel, which is fixedly connected to one of the drill bits. A limit frame is fixedly connected to one side of the bottom of the outer frame. A rotating rod is rotatably connected to the limit frame. The rotating rod has a bidirectional threaded groove. A driven wheel is fixedly connected to the side of the rotating rod near the driving wheel. A belt is wound between the driven wheel and the driving wheel. The belt is obliquely arranged and passes through the outer frame. A threaded block is threadedly connected to the bidirectional threaded groove of the rotating rod. A sliding rod is fixedly connected to the threaded block. The sliding rod is slidably connected to the elongated hole of the outer frame. A limit block is fixedly connected to one side of the threaded block.

[0007] As a preferred embodiment of the present invention, the steering mechanism includes a rotating shaft rotatably connected to the limiting block, the rotating shaft being slidably connected to the slide groove of the outer frame, an overrunning clutch being fixedly connected to the rotating shaft, a fixed gear being fixedly connected to the outer side of the overrunning clutch, a fixed disk being fixedly connected to the top of the rotating shaft, the fixed disk being located above the outer frame, the fixed disk having several protrusions, a bushing being placed on the fixed disk, several fixing holes of the bushing being respectively fitted onto several protrusions of the fixed disk, and a rack being fixedly connected to the top of the inner wall of the outer frame, the rack being located on one side of the slide groove of the outer frame.

[0008] As a preferred embodiment of the present invention, it further includes a stabilizing mechanism, which is disposed on the outer frame. The stabilizing mechanism is used to prevent the bushing from rotating during drilling. The stabilizing mechanism includes a positioning frame, which is fixedly connected to the bottom of the outer frame. The positioning frame has a square groove, and positioning rods are rotatably connected to both sides of the square groove. The two positioning rods are symmetrically arranged, and a tension spring is connected between the ends of the two positioning rods away from the positioning frame. A square rod is fixedly connected to the bottom of the rotating shaft, and the two sides of the square rod contact the two positioning rods respectively. The square rod is located between the two positioning rods.

[0009] As a preferred embodiment of the present invention, it further includes a pressure-applying mechanism disposed on the drilling box. The pressure-applying mechanism is used to apply pressure around the drilled portion of the bushing. The pressure-applying mechanism includes a fixed rod, which is fixedly connected to the side of the drilling box near the bushing. The fixed rod is located between the two drill bits. A sleeve rod is fitted onto the fixed rod. A pressure plate is fixedly connected to the end of the sleeve rod away from the drilling box. The pressure plate has two through holes, through which the two drill bits pass respectively. A compression spring is connected between the pressure plate and the drilling box, and the compression spring is fitted onto the fixed rod and the sleeve rod.

[0010] As a preferred embodiment of the present invention, the pressure plate has several protrusions in each of its two through holes.

[0011] As a preferred embodiment of the present invention, a sponge pad is also included, which is fixedly connected to the side of the pressure plate away from the drilling box.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The present invention drives the transmission gear and two driven gears to rotate via a motor, which in turn drives the drill bit and the driving wheel to rotate together. The rotation of the driving wheel drives the driven wheel and the rotating shaft to rotate together via a belt. The rotation of the rotating shaft drives the limit block to move laterally back and forth via a threaded block. The lateral back and forth movement of the limit block drives the overrunning clutch, the rotating shaft, the fixed gear, the fixed disc, and the bushing to move laterally back and forth together. The reciprocating movement of the bushing causes the two rotating drill bits to drill intermittently to form a hole. The lateral back and forth movement of the fixed gear causes the rack to rotate back and forth. Under the action of the overrunning clutch, the fixed gear drives the rotating shaft to rotate a certain angle via the rack each time it resets, so that the bushing automatically replaces the new drill surface after each drilling, making drilling more convenient and improving drilling efficiency.

[0013] 2. The reciprocating movement of the rotating shaft drives the square rod to reciprocate. The rotation of the rotating shaft will cause the square rod to rotate. The rotation of the square rod will cause the two locking rods to open and clamp the square rod under the action of the tension spring. In this way, the tension spring restricts the square rod from rotating while moving. The square rod will be locked into the square groove of the locking frame, making the bushing less prone to rotational deviation during drilling. This makes the bushing more stable during movement and drilling, thereby enhancing the drilling effect of the bushing.

[0014] 3. When the bushing contacts the two drill bits, it will also contact the pressure plate. Then, as the bushing continues to move, it will squeeze the pressure plate and the sleeve rod together and move towards the drill box. Under the action of the compression spring, the pressure plate applies pressure to the area around the bushing surface to be drilled, thereby making the hole drilled by the bushing smoother, thus making the bushing of better quality and making the drilling of the bushing more effective. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a partial cross-sectional perspective view of the reciprocating moving mechanism of the present invention.

[0018] Figure 4 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0019] Figure 5 This is a partial cross-sectional perspective view of the three-dimensional structure of the steering mechanism of the present invention.

[0020] Figure 6 This is a three-dimensional structural diagram of the steering mechanism of the present invention.

[0021] Figure 7 This is a three-dimensional structural diagram of the stabilizing mechanism and rotating shaft of the present invention.

[0022] Figure 8 This is a schematic diagram of the split three-dimensional structure of the stabilizing mechanism of the present invention.

[0023] Figure 9 This is a partial three-dimensional structural schematic diagram of the pressure application mechanism of the present invention.

[0024] Figure 10 This is a three-dimensional structural diagram showing the disassembled pressure application mechanism, drill bit, and sponge pad of the present invention.

[0025] The above-mentioned attached drawings include the following reference numerals: 1_outer frame, 2_drill box, 3_motor, 4_transmission gear, 5_drill bit, 6_driven gear, 71_driving wheel, 72_limiting bracket, 73_rotating rod, 74_passive wheel, 75_belt, 76_threaded block, 77_sliding rod, 78_limiting block, 81_rotating shaft, 82_overrunning clutch, 83_fixed gear, 84_fixed disc, 85_rack, 9_sleeve, 101_positioning bracket, 102_positioning rod, 103_tension spring, 104_square rod, 111_fixed rod, 112_sleeve rod, 113_pressure plate, 114_compression spring, 12_sponge pad. Detailed Implementation

[0026] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0027] Example 1: A drilling device for a marine rudder shaft sleeve, such as Figures 1-10As shown, the device includes an outer frame 1 with a sliding groove at its top and an elongated hole on one side of its top. The elongated hole and the sliding groove are parallel to each other. A drilling box 2 is welded to the outer frame 1, and a motor 3 is bolted to the drilling box 2. A transmission gear 4 is connected to the output shaft of the motor 3 via a key. Two drill bits 5 are rotatably connected to one side of the drilling box 2. Each drill bit 5 has a driven gear 6 connected to one end near the transmission gear 4 via a key. The transmission gear 4 meshes with the two driven gears 6. The drill bit 5 has a reciprocating movement mechanism, which in turn has a steering mechanism. The steering mechanism has a bushing 9 with several fixing holes at both ends. The reciprocating movement mechanism drives the bushing 9 to reciprocate through the drill bit 5 for drilling, and the steering mechanism is used to intermittently rotate the bushing 9 to change the drilling position.

[0028] The reciprocating movement mechanism includes a drive wheel 71, which is bolted to one of the drill bits 5. A limit frame 72 is welded to one side of the bottom of the outer frame 1. A rotating rod 73 is rotatably connected to the limit frame 72. The rotating rod 73 has a bidirectional threaded groove. A driven wheel 74 is bolted to the side of the rotating rod 73 near the drive wheel 71. A belt 75 is wound between the driven wheel 74 and the drive wheel 71. The belt 75 is obliquely arranged and passes through the outer frame 1. A threaded block 76 is threaded to the bidirectional threaded groove of the rotating rod 73. A sliding rod 77 is bolted to the threaded block 76. The sliding rod 77 is slidably connected to the elongated hole of the outer frame 1. A limit block 78 is bolted to one side of the threaded block 76.

[0029] The steering mechanism includes a rotating shaft 81, which is rotatably connected to the limiting block 78. The rotating shaft 81 is slidably connected to the slide groove of the outer frame 1. An overrunning clutch 82 is bolted to the rotating shaft 81. A fixed gear 83 is connected to the outside of the overrunning clutch 82 via a flat key. A fixed disk 84 is welded to the top of the rotating shaft 81. The fixed disk 84 is located above the outer frame 1 and has several protrusions. The fixed disk 84 is used to fix the bushing 9. The bushing 9 is placed on the fixed disk 84. Several fixing holes of the bushing 9 are respectively fitted onto several protrusions of the fixed disk 84. A rack 85 is bolted to the top of the inner wall of the outer frame 1. The rack 85 is located on one side of the slide groove of the outer frame 1 and is used to drive the fixed gear 83 to rotate at a certain angle.

[0030] First, the worker secures the bushing 9 to the fixing plate 84 through several fixing holes and protrusions. Simultaneously, the motor 3 is started. The output shaft of the motor 3 rotates, driving the transmission gear 4. The rotation of the transmission gear 4, through two driven gears 6, drives two drill bits 5 to rotate. One drill bit 5 rotates, driving the drive wheel 71. The drive wheel 71, through a belt 75, drives the driven wheel 74 and the rotating shaft 81 to rotate together. This causes the bidirectional threaded groove of the rotating shaft 81 to cause the threaded block 76 to slide along the elongated hole of the outer frame 1 towards the drill box 2 via the sliding rod 77. The rotation of the rotating shaft 81 causes the threaded block 76 to move, which in turn moves the limiting block 78. Then, the rotating shaft 81 continues to rotate, causing the threaded block 76, sliding rod 77, and limiting block 78 to move together away from the drilling box 2. This process repeats. The rotation of the rotating shaft 81 causes the limiting block 78 to move laterally and reciprocally via the threaded block 76. This lateral reciprocating movement of the limiting block 78 causes the overrunning clutch 82, rotating shaft 81, fixed gear 83, fixed disc 84, and bushing 9 to move laterally and reciprocally together. The fixed gear 83 moves and meshes with the rack 85, causing it to rotate. Under the action of the overrunning clutch 82, the rotating shaft 81 is prevented from rotating. The rotating shaft 81 continues to move, causing the fixed disk 84 and the bushing 9 to move together. The bushing 9 first contacts the two rotating drill bits 5, and then, as it continues to move, the drill bits 5 drill holes in it. Then, the limit block 78 resets, causing the overrunning clutch 82, rotating shaft 81, fixed gear 83, fixed disk 84, and bushing 9 to reset together. The fixed disk 84 resets, causing the bushing 9 to disengage from the drill bits 5 and reset. Simultaneously, the reset of the fixed gear 83, through the rack 85, causes the overrunning clutch 82 and rotating shaft 81 to rotate together. The rotation of the rotating shaft 81, through the fixed disk... 84 drives the bushing 9 to rotate, which in turn causes the bushing 9 to change the drill surface during the next drilling. This process is repeated. The movement of the bushing 9 will drill through the two rotating drill bits 5 to form a hole. The fixed gear 83 moves laterally and reciprocates through the rack 85. Under the action of the overrunning clutch 82, the fixed gear 83 drives the rotating shaft 81 to rotate a certain angle through the rack 85 each time it resets. This allows the bushing 9 to automatically change to a new drill surface after each drilling, making drilling more convenient and improving drilling efficiency. After drilling is completed, the operator can turn off the motor 3 and remove the bushing 9.

[0031] Example 2: Based on Example 1, such as Figures 2-8As shown, it also includes a stabilizing mechanism, which is mounted on the outer frame 1. The stabilizing mechanism is used to prevent the bushing 9 from rotating during drilling. The stabilizing mechanism includes a locking frame 101, which is welded to the bottom of the outer frame 1. The locking frame 101 has a square groove, and locking rods 102 are rotatably connected to both sides of the square groove. The two locking rods 102 are symmetrically arranged, and a tension spring 103 is connected between the ends of the two locking rods 102 away from the locking frame 101 via hooks. A square rod 104 is welded to the bottom of the rotating shaft 81. The two sides of the square rod 104 are in contact with the two locking rods 102 respectively. The square rod 104 is located between the two locking rods 102, and the square groove of the locking frame 101 is used to lock the square rod 104.

[0032] As the rotating shaft 81 moves, it drives the square rod 104 to move as well. When the bushing 9 contacts the drill bit 5, the square rod 104 is just inserted into the square groove of the clamping bracket 101. Then, as the rotating shaft 81 resets, it drives the square rod 104 to reset as well. The square rod 104, upon resetting, disengages from the square groove of the clamping bracket 101 and contacts the two clamping rods 102. Subsequently, the rotating shaft 81 rotates, causing the square rod 104 to rotate, which in turn compresses the two clamping rods 102, causing them to rotate away from each other. The tension spring 103 is pulled. Then, the rotating shaft 81 stops rotating, causing the other two sides of the square rod 104 to contact the two clamping rods 102. The tension spring 103 is pulled. 03 Reset causes the two locking rods 102 to reset and clamp the square rod 104. This process is repeated. The reciprocating movement of the rotating shaft 81 causes the square rod 104 to reciprocate. The rotation of the rotating shaft 81 causes the square rod 104 to rotate. The rotation of the square rod 104 causes the two locking rods 102 to open and close under the action of the tension spring 103, thus restricting the square rod 104 from rotating while moving. The square rod 104 moves and gets stuck in the square groove of the locking frame 101, making it less likely for the bushing 9 to rotate or shift during drilling. This makes the bushing 9 more stable during movement and drilling, thereby enhancing the drilling effect of the bushing 9.

[0033] Example 3: Based on Example 2, such as Figures 9-10As shown, it also includes a pressure-applying mechanism, which is mounted on the drilling box 2. The pressure-applying mechanism is used to apply pressure around the drilled area of ​​the bushing 9. The pressure-applying mechanism includes a fixing rod 111, which is welded to the side of the drilling box 2 near the bushing 9. The fixing rod 111 is located between the two drill bits 5. A sleeve rod 112 is fitted on the fixing rod 111. The end of the sleeve rod 112 away from the drilling box 2 is bolted to a pressure plate 113. The pressure plate 113 has two through holes, through which the two drill bits 5 pass respectively. The pressure plate 113 is used to apply pressure to the surface of the bushing 9. A compression spring 114 is connected between the pressure plate 113 and the drilling box 2. The compression spring 114 is fitted on the fixing rod 111 and the sleeve rod 112.

[0034] The pressure plate 113 has several protrusions in each of its two through holes. These protrusions facilitate cleaning of debris from the drill bit 5 during movement.

[0035] It also includes a sponge pad 12, which is fixedly connected to the side of the pressure plate 113 away from the drilling box 2. The sponge pad 12 is used to prevent the pressure plate 113 from causing wear on the bushing 9.

[0036] When the bushing 9 contacts the two drill bits 5, it will also contact the pressure plate 113. Subsequently, the bushing 9 continues to move, squeezing the pressure plate 113 and the sleeve rod 112 together towards the drilling box 2. Under the action of the compression spring 114, the pressure plate 113 applies pressure to the area around the part of the bushing 9 to be drilled, thereby making the hole drilled by the bushing 9 smoother. Furthermore, under the buffering effect of the sponge pad 12, the pressure plate 113 is less likely to wear the surface of the bushing 9 when applying pressure, thus making the bushing 9 of better quality and making the drilling of the bushing 9 more effective. Subsequently, the bushing 9 resets and no longer squeezes the pressure plate 113. The compression spring 114 resets, driving the pressure plate 113 and the sponge pad 12 to reset together.

[0037] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A rudder shaft sleeve drilling device for a ship, characterized by comprising: The utility model provides a kind of drilling machine, including outer frame (1), the outer frame (1) top is opened with sliding slot, the outer frame (1) top one side is opened with long hole, the long hole of the outer frame (1) is parallel with sliding slot, the outer frame (1) is fixedly connected with drilling box (2), the drilling box (2) is fixedly connected with motor (3), the output shaft of motor (3) is fixedly connected with transmission gear (4), the one side of drilling box (2) is rotatably connected with two drill bits (5), the end of two drill bits (5) close transmission gear (4) is fixedly connected with driven gear (6), transmission gear (4) is engaged with two driven gears (6) respectively, the drill bit (5) is equipped with reciprocating mechanism, the reciprocating mechanism is equipped with steering mechanism, the steering mechanism is equipped with shaft sleeve (9), the both ends of shaft sleeve (9) are opened with a plurality of fixed holes, the reciprocating mechanism is used to drive shaft sleeve (9) reciprocating and is drilled through drill bit (5), the steering mechanism is used to intermittently rotate shaft sleeve (9) and change drilling position; The reciprocating mechanism includes a driving wheel (71), the driving wheel (71) is fixedly connected to one of the drill bits (5), the bottom of the outer frame (1) is fixedly connected to a limiting frame (72), the limiting frame (72) is rotatably connected to a rotating rod (73), the rotating rod (73) is provided with a bidirectional threaded groove, the side of the rotating rod (73) close to the driving wheel (71) is fixedly connected to a driven wheel (74), the driven wheel (74) is wrapped with a belt (75) between the driving wheel (71), the belt (75) is obliquely arranged, the belt (75) passes through the outer frame (1), the bidirectional threaded groove of the rotating rod (73) is threadedly connected to a threaded block (76), the threaded block (76) is fixedly connected to a sliding rod (77), the sliding rod (77) is slidably connected to the long hole of the outer frame (1), the side of the threaded block (76) is fixedly connected to a limiting block (78).

2. A rudder shaft bushing drilling apparatus for a marine vessel as defined in claim 1, wherein The steering mechanism includes a rotating shaft (81), the rotating shaft (81) is rotatably connected to the limiting block (78), the rotating shaft (81) is slidably connected to the sliding slot of the outer frame (1), the rotating shaft (81) is fixedly connected to a freewheel (82), the outer side of the freewheel (82) is fixedly connected to a fixed gear (83), the top of the rotating shaft (81) is fixedly connected to a fixed disc (84), the fixed disc (84) is located above the outer frame (1), the fixed disc (84) is provided with a plurality of protrusions, the fixed disc (84) is placed with a shaft sleeve (9), the plurality of fixed holes of the shaft sleeve (9) are respectively sleeved on the plurality of protrusions of the fixed disc (84), the top of the inner wall of the outer frame (1) is fixedly connected to a rack (85), the rack (85) is located on one side of the sliding slot of the outer frame (1).

3. A rudder shaft bushing drilling apparatus according to claim 2, wherein Stabilizing mechanism is arranged on the outer frame (1), which is used for stabilizing the shaft sleeve (9) from rotating during drilling, and the stabilizing mechanism comprises a clamping frame (101) fixedly connected to the bottom of the outer frame (1), a square groove is formed in the clamping frame (101), clamping rods (102) are rotatably connected to both sides of the square groove of the clamping frame (101), the two clamping rods (102) are symmetrically arranged, a tension spring (103) is connected between the ends of the two clamping rods (102) away from the clamping frame (101), a square rod (104) is fixedly connected to the bottom of the rotating shaft (81), the square rod (104) is in contact with the two clamping rods (102) respectively, and the square rod (104) is located between the two clamping rods (102).

4. A rudder shaft bushing drilling apparatus according to claim 3, wherein The pressure applying mechanism is arranged on the drilling box (2), which is used for applying pressure to the surrounding of the drilling part of the shaft sleeve (9), and the pressure applying mechanism comprises a fixed rod (111) fixedly connected to one side of the drilling box (2) close to the shaft sleeve (9), the fixed rod (111) is located between the two drill bits (5), a sleeve rod (112) is sleeved on the fixed rod (111), a pressure plate (113) is fixedly connected to the end of the sleeve rod (112) away from the drilling box (2), two through holes are formed in the pressure plate (113), the two drill bits (5) pass through the two through holes of the pressure plate (113) respectively, a compression spring (114) is connected between the pressure plate (113) and the drilling box (2), and the compression spring (114) is sleeved on the fixed rod (111) and the sleeve rod (112).

5. A rudder shaft bushing drilling apparatus according to claim 4, wherein A plurality of convex strips are arranged in the two through holes of the pressure plate (113).

6. A rudder shaft bushing drilling apparatus according to claim 4, wherein The sponge pad (12) is fixedly connected to the side of the pressure plate (113) away from the drilling box (2).

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