Tool for pulling out insulating tube of cylinder sleeve of marine low-speed machine

Abstract

The utility model relates to the technical field of disassembling tools for insulating water pipes in cylinder sleeves on low-speed diesel engines, and discloses a tool for pulling out an insulating pipe of a marine low-speed engine cylinder sleeve, which comprises an assembly block, trapezoidal pull rods, an opening rod, an assembly arm, a screw rod, a screw sleeve, an impact block and a limiting block, the trapezoidal pull rod is connected with the interior of the assembly block through a first spring, the opening rod and the impact block are in threaded connection with each other, the limiting block is inserted into the left side of the impact block, the assembly block comprises a threaded cylinder, the bottom of the threaded cylinder is in threaded connection with a bottom cover, and a limiting column is assembled at the top of the bottom cover and connected with the first spring. According to the tool for pulling out the insulating pipe of the cylinder sleeve of the marine low-speed machine, the elastic pin can be conveniently disassembled, and the situation that a rust remover is directly sprayed into a pipeline, consequently, the rust remover cannot be completely sprayed to the outer portion of the elastic pin, and the rust remover is wasted is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tools for removing insulating water pipes inside cylinder liners of low-speed diesel engines, in particular to a tool for removing insulating pipes from cylinder liners of marine low-speed engines. Background Art

[0002] The cylinder liner of a low-speed marine diesel engine is a critical component. The upper portion of the cylinder liner, along with the piston, piston rings, and cylinder head, forms a sealed combustion chamber, enabling fuel combustion within the cylinder—the conversion of thermal energy into mechanical energy. When the diesel engine is running, the upper portion of the cylinder liner is constantly exposed to high temperatures and pressure. Therefore, each cylinder liner is designed with a cooling water jacket. This jacket and the cylinder liner form a cooling water chamber, which simultaneously introduces flowing cooling water to cool the cylinder liner, maintaining a suitable temperature and ensuring stable combustion efficiency and power output. To ensure effective cooling of the upper portion of the cylinder liner, the cylinder liner is designed with cooling water holes. Insulating tubes are installed within these holes to adjust the cooling water flow rate and the contact area between the cooling water and the cooling water holes within the cylinder liner, ensuring that cooling meets the required design requirements.

[0003] With the long-term operation of the diesel engine, the contact surface between the cylinder liner surface and the piston ring will wear and affect the sealing performance, and the cooling water chamber and cooling water holes may have scale and other deposits that affect the cooling effect. Therefore, the cylinder liner needs to be inspected and maintained regularly. The water holes in the cylinder liner cooling water chamber need to be cleaned of deposited scale and the like, and the cooling water insulating tube needs to be replaced according to the actual situation. In the prior art, the cooling water insulating tube is assembled inside the device through elastic pins, which makes it impossible to directly disassemble the cooling water insulating tube by conventional means. In the prior art, it is often disassembled by punching with a fine punch, or ejecting with a magnet, tweezers or a punching needle. When the above devices are disassembled, the disassembly speed is usually too slow, or scratches and damage are caused to the inside of the device, thereby reducing the working speed. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the existing technology, the utility model provides a tool for removing the insulating tube of the cylinder liner of a marine low-speed engine to solve the technical problems of slow disassembly speed or scratching and damage to the interior of the device, thereby reducing the working speed.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tool for removing the insulating tube of the cylinder sleeve of a marine low-speed engine, comprising: an assembly block, a trapezoidal pull rod, an opening rod, an assembly arm, a screw, a screw sleeve, an impact block and a limit block, the trapezoidal pull rod being evenly arranged inside the assembly block, and the trapezoidal pull rod being connected to the inside of the assembly block by a first spring, the opening rod, the assembly arm, the screw, the screw sleeve and the impact block being threadedly connected to each other, and the limit block being inserted on the left side of the impact block.

[0008] Preferably, the assembly block includes a threaded barrel, the bottom of the threaded barrel is threadedly connected to a bottom cover, the top of the bottom cover is equipped with a limiting column, the limiting column is connected to the first spring, and the bottom cover cooperates with the threaded barrel to facilitate disassembly of the assembly block and maintenance of the internal trapezoidal pull rod.

[0009] Preferably, the trapezoidal pull rod is externally sleeved with a plastic wear-resistant sleeve, which is slidably connected to the assembly block. The plastic wear-resistant sleeve prevents the trapezoidal pull rod from sliding for a long time and causing wear between the assembly block.

[0010] Preferably, there are six groups of trapezoidal pull rods, which are respectively assembled on the outside of the assembly block. Spray grooves are opened inside the trapezoidal pull rods, and sliding grooves that are slidably connected to the trapezoidal pull rods are evenly opened on the assembly block. The spray grooves facilitate the discharge of rust remover inside the assembly block.

[0011] Preferably, the inside of the impact block is evenly distributed with sliding grooves, and the inside of the sliding groove is slidably connected with a C-shaped slider, and a second spring is connected between the C-shaped slider and the sliding groove. The sliding groove can make the C-shaped slider slide linearly on the top of the impact block, and the second spring can make the C-shaped slider return to its position after movement.

[0012] Preferably, a conical cylinder is assembled inside the limit block, and the conical cylinder is slidably connected to the C-shaped slider. The conical cylinder can drive the C-shaped slider to move when the limit block descends.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the utility model provides a tool for removing the insulating tube of the cylinder liner of a marine low-speed engine, which has the following beneficial effects:

[0015] 1. This tool for removing the insulating tube of the cylinder liner of a marine low-speed engine can quickly limit the bottom of the elastic pin through the cooperation of the trapezoidal pull rod and the assembly block, so that the elastic pin can be pulled out by pulling the impact block back and forth, and then the cooling water insulating tube can be quickly removed based on the elastic pin. At the same time, the overall hollow internal design facilitates the spraying of external rust removers and other products into the bottom of the elastic pin to lubricate and remove rust, thereby facilitating the removal of the elastic pin and avoiding the direct spraying of the rust remover into the pipe, which results in the rust remover not being completely sprayed on the outside of the elastic pin, resulting in waste of the rust remover, and at the same time, avoids friction with the inner wall of the device and causing wear and tear.

[0016] 2. This tool is used to remove the insulating tube of the cylinder liner of a marine low-speed engine. When the rust remover is lubricating the elastic pin, the added impact block and limit block quickly clamp and seal the rust remover pipeline, preventing the rust remover from overflowing from the inside of the impact block and causing waste of the rust remover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the assembly of the utility model;

[0018] Figure 2 This is a partial cross-sectional view of the assembly arm of the utility model;

[0019] Figure 3 This is a partial cross-sectional view of the assembly block of the utility model;

[0020] Figure 4 This is a partial cross-sectional view of the impact block of the utility model.

[0021] In the figure: 1. Assembly block; 11. Limiting column; 12. First spring; 2. Trapezoidal pull rod; 21. Spray slot; 22. Plastic wear-resistant sleeve; 3. Opening rod; 4. Assembly arm; 5. Screw; 6. Screw sleeve; 7. Impact block; 71. C-shaped slider; 71. Slide slot; 73. Second spring; 8. Limiting block; 81. Conical cylinder. DETAILED DESCRIPTION

[0022] 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides a technical solution, a tool for removing the insulating tube of the cylinder sleeve of a marine low-speed engine, comprising: an assembly block 1, a trapezoidal pull rod 2, an open rod 3, an assembly arm 4, a screw rod 5, a screw sleeve 6, an impact block 7 and a limit block 8, the trapezoidal pull rod 2 is evenly arranged inside the assembly block 1, and the trapezoidal pull rod 2 is connected to the inside of the assembly block 1 through a first spring 12, the open rod 3, the assembly arm 4, the screw rod 5, the screw sleeve 6, and the impact block 7 are threadedly connected to each other, and the limit block 8 is inserted on the left side of the impact block 7.

[0024] The trapezoidal pull rod 2 can be stuck at the bottom of the elastic pin, and the elastic pin can be pulled out. The assembly block 1, trapezoidal pull rod 2, opening rod 3, assembly arm 4 and screw 5 can be inserted into the pipe. The screw sleeve 6, impact block 7 and limit block 8 can extend the overall length of the device, making it convenient for the staff to drive the elastic pin for disassembly.

[0025] The assembly block 1 includes a threaded barrel, the bottom of which is threadedly connected to a bottom cover, and the top of the bottom cover is equipped with a limiting column 11, which is connected to a first spring 12. The bottom cover cooperates with the threaded barrel to facilitate the disassembly of the assembly block 1 to maintain the internal trapezoidal pull rod 2. The outside of the trapezoidal pull rod 2 is sleeved with a plastic wear-resistant sleeve 22, which is slidingly connected to the assembly block 1. The plastic wear-resistant sleeve 22 prevents the trapezoidal pull rod 2 from sliding for a long time and causing wear between the assembly block 1. At the same time, the bottom cover can also be equipped with a stop block to limit the movement of the trapezoidal pull rod 2, thereby knocking the elastic pin out of the inside of the pipe from the top of the elastic pin.

[0026] There are six groups of trapezoidal pull rods 2, which are respectively assembled on the outside of the assembly block 1. The inside of the trapezoidal pull rods 2 is provided with a spray groove 21, and the assembly block 1 is evenly provided with sliding grooves that are slidably connected to the trapezoidal pull rods 2. The spray grooves 21 facilitate the discharge of the rust remover inside the assembly block 1.

[0027] The inside of the impact block 7 is evenly distributed with sliding grooves 72, and the inside of the sliding groove 72 is slidingly connected with a C-shaped slider 71. A second spring 73 is connected between the C-shaped slider 71 and the sliding groove 72. The sliding groove 72 can make the C-shaped slider 71 slide linearly on the top of the impact block 7, and the second spring 73 can make the C-shaped slider 71 return to its original position after movement.

[0028] A conical cylinder 81 is assembled inside the limiting block 8, and the conical cylinder 81 is slidably connected to the C-shaped slider 71. The conical cylinder 81 can drive the C-shaped slider 71 to move when the limiting block 8 descends.

[0029] In this solution, the assembly block 1 is first inserted into the interior of the device so that the assembly block 1 passes through the interior of the elastic pin. When the assembly block 1 is inside the elastic pin, the trapezoidal pull rod 2 will retract into the interior of the assembly block 1 due to the resistance. When the assembly block 1 passes through the elastic pin, the trapezoidal pull rod 2 is returned to its original position by the first spring 12 and then stuck at the bottom of the elastic pin. At this time, by pulling the impact block 7 back and forth, the elastic pin is pulled out from the interior of the cooling water insulating pipe, and then the cooling water insulating pipe is disassembled;

[0030] When the elastic pin is stuck inside the insulating tube, a nozzle of an external lubricant or rust remover is inserted into the inside of the stop block 8, and the stop block 8 is pressed down, and the multiple C-shaped sliders 71 are driven to move relative to each other through the tapered cylinder 81, and then the pipe is clamped. The rust remover passes through the inside of the assembly block 1 and enters the inside of the spray slot 21 and is discharged, and is sprayed on the bottom of the elastic pin and the gap between the elastic pin and the pipe. The elastic pin is then driven to move multiple times to complete the removal of the elastic pin.

[0031] By cooperating with the trapezoidal pull rod 2 and the assembly block 1, the bottom of the elastic pin can be quickly limited, so that the elastic pin can be pulled out by pulling the impact block 7 back and forth, and then the cooling water insulation pipe can be quickly disassembled based on the elastic pin. At the same time, the overall internal hollow design facilitates the spraying of external rust removers and other products into the bottom of the elastic pin to lubricate and remove rust, thereby facilitating the disassembly of the elastic pin and avoiding the direct spraying of the rust remover into the pipe interior, which results in the rust remover not being able to be completely sprayed on the outside of the elastic pin, resulting in waste of the rust remover.

[0032] When the rust remover is lubricating the elastic pin, the rust remover pipeline is quickly clamped and fixedly sealed by the added impact block 7 and the limit block 8, thereby preventing the rust remover from overflowing from the inside of the impact block 7 and causing waste of the rust remover.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may 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 appended claims and their equivalents.

Claims

1. A tool for removing the insulating tube of a cylinder liner of a marine low-speed engine, comprising: An assembly block (1), a trapezoidal pull rod (2), an opening rod (3), an assembly arm (4), a screw rod (5), a screw sleeve (6), an impact block (7) and a limit block (8), characterized in that: the trapezoidal pull rod (2) is evenly distributed inside the assembly block (1), and the trapezoidal pull rod (2) is connected to the inside of the assembly block (1) through a first spring (12), the opening rod (3), the assembly arm (4), the screw rod (5), the screw sleeve (6) and the impact block (7) are threadedly connected to each other, and the limit block (8) is inserted on the left side of the impact block (7).

2. A tool for removing the insulating tube of a cylinder liner of a marine low-speed engine according to claim 1, characterized in that: The assembly block (1) comprises a threaded barrel, the bottom of the threaded barrel is threadedly connected to a bottom cover, the top of the bottom cover is assembled with a limiting column (11), and the limiting column (11) is connected to a first spring (12).

3. The tool for removing the insulating tube of a cylinder liner of a marine low-speed engine according to claim 1, characterized in that: The trapezoidal pull rod (2) is sleeved with a plastic wear-resistant sleeve (22) on its exterior, and the plastic wear-resistant sleeve (22) is slidably connected to the assembly block (1).

4. The tool for removing the insulating tube of a cylinder liner of a marine low-speed engine according to claim 1, characterized in that: There are six groups of trapezoidal pull rods (2), which are respectively assembled on the outside of the assembly block (1). Spray grooves (21) are provided inside the trapezoidal pull rods (2).

5. The tool for removing the insulating tube of a cylinder liner of a marine low-speed engine according to claim 1, characterized in that: Slide grooves (72) are evenly distributed inside the impact block (7), a C-shaped slider (71) is slidably connected inside the slide groove (72), and a second spring (73) is connected between the C-shaped slider (71) and the slide groove (72).

6. The tool for removing the insulating tube of the cylinder liner of a marine low-speed engine according to claim 5, characterized in that: A conical cylinder (81) is assembled inside the limit block (8), and the conical cylinder (81) is slidably connected to the C-shaped sliding block (71).

Images