A stern tube boring tool

Abstract

The present invention discloses a stern tube boring tool, which belongs to the field of stern tube boring devices and is characterized in that a working box is provided with two parallel slide grooves; the slide groove is communicated with the interior of the working box, the internal bottom plate of the working box is slidably connected with a slide plate, two blocks are fixedly connected at both ends of the slide plate, the output shaft of the second motor above the slide plate is fixedly sleeved with a main gear, and an electric push rod is provided at one end of the slide plate; two bidirectional screw rods parallel to each other are provided inside the working box, and the bidirectional screw rods are sleeved with a driven wheel meshed with the driving wheel; the top of the slide block is fixedly connected with a clamping assembly for clamping the stern tube; a limit assembly is also provided inside the working box; the advantage of the present invention is that the structure is simple, the practical function of the stern tube boring tool is enriched, and stern tubes of different sizes within a certain range can be clamped according to the cooperation between components; the limit assembly is easy to replace after being worn, and the setting of the limit assembly also has a certain protective effect on gears, etc., and the operation is simple and convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of stern tube boring devices, and in particular to a stern tube boring tool. Background Art

[0002] A stern tube boring tool is a device used to bore holes in the stern tube. The stern tube is a component of a ship's shafting system, fixed to the stern of the hull. It is the pipe section through which the stern shaft passes and is equipped with sealing and support devices. However, existing stern tube boring devices have the following shortcomings during operation: 1. The clamping size is limited; 2. The components are difficult to replace after wear.

[0003] Therefore, it is necessary to provide a stern tube boring tool to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art that the clamping size is single and the clamping assembly is inconvenient to replace after being worn, and to propose a stern tube boring tool.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A stern tube boring tool comprises a work box, the work box being provided with two parallel slides; the slides being in communication with the interior of the work box; a slide being slidably connected to an inner bottom plate of the work box; two clamping blocks being fixedly connected to both ends of the slide; a second motor being provided above the slide; a main gear being fixedly provided on an output shaft of the second motor; an electric push rod being provided at one end of the slide; and a telescopic rod of the electric push rod being fixedly connected to the slide;

[0007] Two mutually parallel bidirectional screw rods are provided inside the working box, and a driven wheel meshing with the main gear is sleeved on the bidirectional screw rods; a slider is provided at both ends of the bidirectional screw rods through a threaded hole, and a clamping assembly for clamping the stern tube is fixedly connected to the top of the slider;

[0008] A limit assembly is also provided inside the working box;

[0009] Preferably, the limiting assembly includes a plurality of fixed plates arranged in the working box, a plurality of limiting columns are provided on one side of the fixed plates, and a spring is provided between one side of the fixed plates and the inner wall of the working box.

[0010] Preferably, the clamping assembly includes a clamping block fixedly connected to the top of the slider, and a limiting hole is provided on one side of the slider, and the limiting hole is engaged with the limiting column.

[0011] Preferably, the clamping portion of the clamping block is fixedly connected with anti-slip rubber.

[0012] Preferably, a support plate is fixedly connected to one side of the working box, a back plate is fixedly connected to the top of the support plate, a first motor is fixedly connected to one side of the back plate and the output shaft of the first motor passes through the back plate, and the output shaft of the first motor is fixedly connected to a boring machine.

[0013] Beneficial effects: In the present invention, when boring is required, the clamping block can clamp the stern tube through the action of the second motor and the electric push rod, and components such as a clamping block and a limiting column are provided to limit the clamping block, so that the device can clamp stern tubes of different sizes within a certain range, which is convenient for processing.

[0014] The present invention has a simple structure, enriches the practical functions of the stern tube boring tool, can clamp stern tubes of different sizes within a certain range according to the cooperation between the components, and the limit components are easy to replace after being worn. The setting of the limit components also has a certain protective effect on gears, etc., and the operation is simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a stern tube boring tool proposed in the present invention;

[0016] Figure 2 Schematic diagram of the top view of the interior of the working box in the present invention;

[0017] Figure 3 Schematic diagram of the three-dimensional structure of the clamping assembly in the present invention;

[0018] Figure 4 This is a schematic diagram of the positions of the slide plate and the second motor in the present invention;

[0019] In the figure: 1. working box; 101. slide; 2. clamping block; 3. slider; 302. threaded hole; 4. bidirectional screw; 5. limit column; 6. support plate; 7. boring machine; 8. first motor; 9. back plate; 10. slide plate; 11. clamping block; 12. second motor; 13. main gear; 14. driven wheel; 15. fixing plate; 16. electric push rod; 17. spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Example 1

[0022] Reference Figure 1-4 A stern tube boring tool, comprising a working box 1,

[0023] Two chutes 101 are provided on the top of the working box 1;

[0024] A slide 10 is slidably connected to the inner bottom plate of the work box 1. Two blocks 11 are fixedly connected to the top of the slide 10. A second motor 12 is provided above the slide 10. The motor frame of the second motor 12 spans both sides of the slide 10. A main gear 13 is fixedly provided on the output shaft of the second motor 12. An electric push rod 16 is fixedly connected to the inner bottom plate of the work box 1, and the telescopic rod of the electric push rod 16 is fixedly connected to the slide 10.

[0025] A slider 3 is slidably connected to the inner bottom plate of the working box 1, and a clamping assembly for clamping the stern tube is fixedly connected to the top of the slider 3;

[0026] A limiting assembly for limiting the position of the slider 3 is slidably connected to the inner bottom plate of the working box 1;

[0027] A support plate 6 is fixedly connected to one side of the work box 1, a back plate 9 is fixedly connected to the top of the support plate 6, a first motor 8 is fixedly connected to one side of the back plate 9, and the output shaft of the first motor 8 rotates through the back plate 9, and the output shaft of the first motor 8 is fixedly connected to the boring machine 7.

[0028] Example 2

[0029] Reference Figure 1-4 A stern tube boring tool, comprising a working box 1,

[0030] Two chutes 101 are provided on the top of the working box 1;

[0031] A slide 10 is slidably connected to the inner bottom plate of the working box 1, and two clamping blocks 11 are fixedly connected to the top of the slide 10. The width of the clamping blocks 11 is slightly wider than the spacing between the fixed plates 15 in the reset state to facilitate engagement, and the side of the clamping blocks 11 close to the fixed plate is provided with an inclination; a second motor 12 is provided above the slide 10, and the motor bracket of the second motor 12 spans both sides of the slide 10; the output shaft fixing sleeve of the second motor 12 is provided with a main gear 13, and an electric push rod 16 is fixedly connected to the inner bottom plate of the working box 1, and the telescopic rod of the electric push rod 16 is fixedly connected to the slide 10;

[0032] A slider 3 is slidably connected to the inner bottom plate of the working box 1, and a clamping assembly for clamping the stern tube is fixedly connected to the top of the slider 3. The clamping assembly includes a clamping block 2 fixedly connected to the top of the slider 3, and the slider 3 is engaged with the limit column 5. The limit column 5 is set to a wedge shape, and the slider 3 is clamped between adjacent limit columns 5; the inner wall of the working box 1 is rotatably connected to two bidirectional screw rods 4, the slider 3 is provided with a threaded hole 302 and the two sliders 3 on the same side are penetrated by the same bidirectional screw rod 4, the top of the slider 3 is fixedly connected to the clamping block 2, and the clamping part of the clamping block 2 is fixedly connected with anti-slip rubber, which makes the stern tube clamped more firmly and not easy to slip. The central outer wall of the bidirectional screw rod 4 is fixedly sleeved with a driven gear 14 and the driven gear 14 is meshed with the main gear 13, so that stern tubes of various sizes within a certain range can be clamped.

[0033] A limiting assembly for limiting the position of the slider 3 is slidably connected to the inner bottom plate of the work box 1. The limiting assembly includes a plurality of fixed plates 15 arranged on the inner bottom plate of the work box 1. The inner bottom plate of the work box 1 is provided with a groove for sliding to facilitate the sliding of the fixed plate 15. A plurality of limiting columns 5 are fixedly connected to one side of the fixed plate 15. A spring 17 is fixedly connected between one side of the fixed plate 15 and the inner wall of the work box 1 to limit the position of the slider 3.

[0034] A support plate 6 is fixedly connected to one side of the work box 1, a back plate 9 is fixedly connected to the top of the support plate 6, a first motor 8 is fixedly connected to one side of the back plate 9, and the output shaft of the first motor 8 rotates through the back plate 9, and the output shaft of the first motor 8 is fixedly connected to the boring machine 7.

[0035] However, as is well known to those skilled in the art, the working principles and connection methods of the first motor 8, the second motor 12 and the electric push rod 16 are commonplace, and are conventional means or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0036] In the present invention, when boring is required, the stern tube is first placed at a suitable position on the top of the working box 1, and the second motor 12 is started. The main gear 13 of the output shaft of the second motor 12 is meshed with the left and right driven gears 14. Under the action of the second motor 12, the main gear 13 rotates, causing the two driven gears 14 meshing therewith to rotate as well. The driven gears 14 drive the bidirectional screw rod 4 to rotate, thereby causing the sliders 3 at both ends to move toward the center. The slider 3 drives the clamping block 2 to move. When the clamping block 2 clamps the stern tube, the second motor 12 is turned off and the electric push rod 4 is started. Rod 16 drives the slide plate 10 to move. At this time, the two blocks 11 on the slide plate 10 also move accordingly. The two blocks 11 are respectively inserted into the fixed plates 15. The spring 17 is squeezed, so that the slider 3 just corresponds to the gap between the adjacent limit columns 5 fixedly connected to one side of the fixed plate 15. The position of the slider 3 is limited, and the position of the clamping block 2 is also limited, which can play a certain protective role on the gear. At this time, the stern tube is clamped, the electric push rod 16 is closed, and the first motor 8 is started. The first motor 8 drives the boring machine 7 to rotate to bore the stern tube. After the boring is completed, the first motor 8 is turned off and the electric push rod 16 is started. The electric push rod 16 drives the slide plate 10 to move, and the two blocks 11 are moved out. The fixing plate 15 is reset under the action of the spring 17, so that the limit column 5 is released from the engagement, and then the limit of the slider 3 is released. The second motor 12 is started, and the main gear 13 drives the driven gear 14 to rotate, thereby driving the bidirectional screw rod 4 to rotate, so that the slider 3 moves away from the driven gear 14, and then the clamping block 2 on the stern tube is released, and the stern tube can be taken out. This reciprocating process is repeated.

[0037] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A stern tube boring tool, comprising a working box (1), characterized in that: The working box (1) is provided with two parallel slides (101); the slides (101) are communicated with the interior of the working box; a slide plate (10) is slidably connected to the inner bottom plate of the working box (1); two clamping blocks (11) are fixedly connected to both ends of the slide plate (10); a second motor (12) is provided above the slide plate (10); an output shaft fixed sleeve of the second motor (12) is provided with a driving wheel (13); an electric push rod (16) is provided at one end of the slide plate (10); and a telescopic rod of the electric push rod (16) is fixedly connected to the slide plate (10); Two mutually parallel bidirectional screw rods are provided inside the working box (1), and a driven wheel (14) meshing with the driving wheel (13) is sleeved on the bidirectional screw rod; a slider (3) is provided at both ends of the bidirectional screw rod through a threaded hole (302), and a clamping assembly for clamping the stern tube is fixedly connected to the top of the slider (3); the clamping assembly includes a clamping block (2) fixedly connected to the top of the slider (3), and a limiting hole (301) is provided on one side of the slider (3), and the limiting hole (301) is engaged with the limiting column (5); A limiting assembly is further provided inside the working box (1); the limiting assembly comprises a plurality of fixed plates (15) provided inside the working box (1), a plurality of limiting columns (5) being provided on one side of the fixed plates (15), and a spring (17) being provided between one side of the fixed plates (15) and the inner wall of the working box (1); A support plate (6) is fixedly connected to one side of the working box (1), a back plate (9) is fixedly connected above the support plate (6), a first motor (8) is fixedly connected to one side of the back plate (9), and an output shaft of the first motor (8) passes through the back plate (9), and the output shaft of the first motor (8) is fixedly connected to a boring machine (7).

2. A stern tube boring tool according to claim 1, characterized in that: The clamping portion of the clamping block (2) is fixedly connected with anti-slip rubber.

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