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

Abstract

The invention 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 invention relates to the technical field of tools for removing insulating water pipes inside a cylinder liner of a low-speed diesel engine, in particular to a tool for removing insulating pipes of a cylinder liner of a marine low-speed engine. Background Art

[0002] The cylinder liner of a marine low-speed diesel engine is an important component of the diesel engine. The upper part of the cylinder liner cooperates with the piston, piston ring and cylinder head to form a closed combustion chamber to realize the combustion of fuel in the cylinder, that is, the conversion of thermal energy and mechanical energy. When the diesel engine is in the starting state, the upper part of the cylinder liner is always in a state of high temperature and high pressure, so each cylinder liner is designed with a cylinder liner cooling water jacket. The cooling water jacket and the cylinder liner form a cooling water cavity. At the same time, flowing cooling water is introduced to cool the cylinder liner, so that the cylinder liner is at a suitable temperature, thereby ensuring the stable combustion efficiency and power output of the diesel engine. In order to ensure the cooling effect of the upper part of the cylinder liner and make the cooling more sufficient, some cooling water holes are processed inside the cylinder liner when the cylinder liner is designed. An insulating tube will be installed inside the cooling water hole to adjust the flow rate of the cooling water and the contact area between the cooling water and the cooling water hole inside the cylinder liner, so that the cooling meets the design requirements.

[0003] With the long-term operation of the diesel engine, the contact surface between the cylinder liner 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, it is necessary to regularly inspect and maintain the cylinder liner. The water holes in the cooling water chamber of the cylinder liner need to be cleaned of deposited scale and the like, and the cooling water insulating tube should 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. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a tool for removing the insulating tube of the cylinder liner of a marine low-speed engine to solve the technical problem that the disassembly speed is too slow or scratches and damages are caused to the interior of the device, thereby reducing the working speed.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention 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 open rod, an assembly arm, a screw rod, a screw sleeve, an impact block and a limit block, the trapezoidal pull rod is evenly arranged inside the assembly block, and the trapezoidal pull rod is connected to the inside of the assembly block through a first spring, the open rod, the assembly arm, the screw rod, the screw sleeve and the impact block are threadedly connected to each other, and the limit block is 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, and the plastic wear-resistant sleeve is slidably connected to the assembly block, so that 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. The inside of the trapezoidal pull rods is provided with spray grooves, and the assembly block is evenly provided with sliding grooves slidably connected to the trapezoidal pull rods. The spray grooves facilitate the discharge of the rust remover inside the assembly block.

[0011] Preferably, the inside of the impact block is evenly provided with sliding grooves, the inside of the sliding groove is slidably connected with a C-shaped slider, 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 original position after movement.

[0012] Preferably, a conical cylinder is installed 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] (III) Beneficial effects

[0014] Compared with the prior art, the present invention 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. The tool for removing the insulating tube of the cylinder sleeve 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 disassembled with respect to the elastic pin. At the same time, through the overall hollow internal design, it is convenient for external rust removers and other products to be sprayed into the bottom of the elastic pin to lubricate and remove rust, and then it is convenient to disassemble the elastic pin, avoiding the direct spraying of the rust remover inside the pipeline, 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, and at the same time, it can avoid friction with the inner wall of the device to cause wear and tear;

[0016] 2. The tool is used for removing the insulating tube of the cylinder sleeve of a marine low-speed engine. When the rust remover is lubricating the elastic pin, the added impact block and limit block can quickly clamp and seal the pipeline of the rust remover, thereby 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 It is a schematic diagram of the assembly of the present invention;

[0018] Figure 2 It is a partial cross-sectional view of the assembly arm of the present invention;

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

[0020] Figure 4 It is a partial cross-sectional view of the impact block of the present invention.

[0021] In the figure: 1, assembly block; 11, limit column; 12, first spring; 2, trapezoidal pull rod; 21, spray groove; 22, plastic wear-resistant sleeve; 3, opening rod; 4, assembly arm; 5, screw rod; 6, screw sleeve; 7, impact block; 71, C-shaped slider; 71, slide groove; 73, second spring; 8, limit block; 81, tapered 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0023] The present invention provides a technical solution, a tool for removing the insulating tube of a 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 pulled out. The assembly block 1, trapezoidal pull rod 2, opening rod 3, assembly arm 4 and screw rod 5 can cooperate to be inserted into the pipe. The screw sleeve 6, impact block 7 and limit block 8 can lengthen 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, the top of the bottom cover is equipped with a limit column 11, the limit column 11 is connected to the first spring 12, and 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 outer part of the trapezoidal pull rod 2 is sleeved with a plastic wear-resistant sleeve 22, and the plastic wear-resistant sleeve 22 is slidably connected to the assembly block 1, and 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, and the bottom cover can also be equipped with a stop block to limit the movement of the trapezoidal pull rod 2, thereby realizing that the elastic pin can be knocked 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 spray grooves 21, and the assembly block 1 is evenly provided with sliding grooves slidably connected to the trapezoidal pull rods 2. The spray grooves 21 are convenient for discharging 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 slidably 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 resistance. When the assembly block 1 passes through the elastic pin, the trapezoidal pull rod 2 returns to its original position through the first spring 12, and then gets stuck at the bottom of the elastic pin. At this time, the elastic pin is pulled out from the interior of the cooling water insulating pipe by pulling the impact block 7 back and forth, and then the cooling water insulating pipe is disassembled;

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

[0031] Through the cooperation of 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 with respect to the elastic pin. At the same time, through the overall hollow internal design, it is convenient for external rust removers and other products to be sprayed into the bottom of the elastic pin to lubricate and remove rust, and then the elastic pin can be disassembled conveniently, avoiding the direct spraying of the rust remover into the interior of the pipeline, 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 pipeline of the rust remover is quickly clamped and fixedly sealed by the added impact block 7 and the limit block 8, so as to prevent 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 article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 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 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 equipped with a limiting column (11), and the limiting column (11) is connected to a first spring (12).

3. 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 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. A 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. 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 impact block (7) is evenly provided with sliding grooves (72), the interior of the sliding groove (72) is slidably connected with a C-shaped sliding block (71), and a second spring (73) is connected between the C-shaped sliding block (71) and the sliding groove (72).

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

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