Stuffing box disassembling and assembling tool for marine diesel engine and using method of stuffing box disassembling and assembling tool

Abstract

The invention discloses a marine diesel engine stuffing box assembling and disassembling tool which comprises a plurality of sets of assembling and disassembling tool bodies, each assembling and disassembling tool body comprises an upper supporting plate, a lower supporting plate, a supporting rod and a back shore bolt, the upper supporting plates and the lower supporting rods are arranged in parallel in an up-down spaced mode, and the upper supporting plates and the lower supporting plates are connected through at least one supporting rod. The multiple back shore bolts are symmetrically arranged on the two sides of the lower supporting plate in a threaded connection and penetrating mode, and the lower supporting plate can be erected on the air cylinder body. The invention discloses a use method of a marine diesel engine stuffing box dismounting tool. A stuffing box in an air cylinder body is jacked and supported with average force through a plurality of dismounting tools in the marine diesel engine stuffing box dismounting tool. According to the marine diesel engine stuffing box disassembling and assembling tool and the using method, force can be evenly applied when the stuffing box is disassembled and assembled, disassembling and assembling are convenient, and reinstallation of the stuffing box is facilitated.

Description

Technical Field

[0001] The invention relates to a disassembly and assembly tool for a stuffing box of a marine diesel engine and a use method thereof, belonging to the technical field of diesel engine manufacturing. Background Art

[0002] The main function of the stuffing box in a diesel engine is sealing. It is located between the crankcase of the diesel engine and the external environment, and forms an effective barrier by filling it with appropriate sealing materials, such as asbestos rope, rubber ring, etc. This barrier can prevent external impurities, moisture, etc. from entering the crankcase, thereby protecting the internal parts of the diesel engine from corrosion and damage. At the same time, the stuffing box can also prevent the oil in the crankcase from leaking to the outside, ensuring the normal operation of the diesel engine.

[0003] In the prior art, the stuffing box is usually installed on the cylinder block of a marine diesel engine and is located outside the piston rod in the cylinder block. The piston rod reciprocates up and down, and the stuffing box scrapes out excess fuel. During each disassembly and repair of the stuffing box, if brute force or uneven force is used to remove the stuffing box from the cylinder block, it will be difficult to install the stuffing box to the cylinder block next time. Summary of the invention

[0004] The technical problem to be solved by the present invention is that there is no special tool for disassembling and assembling the existing stuffing box, which is inconvenient and requires brute force or uneven force on the stuffing box, making it difficult to reinstall the stuffing box.

[0005] In order to solve the above technical problems, the present invention provides a marine diesel engine stuffing box disassembly and assembly tool and a use method, which can evenly apply force when disassembling the stuffing box, making disassembly and assembly convenient and facilitating reinstallation of the stuffing box.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] In the first aspect, the present invention provides a marine diesel engine stuffing box disassembly and assembly tool, including multiple sets of disassembly and assembly tools, the disassembly and assembly tools include an upper support plate, a lower support plate, a support rod and a top support bolt, the upper support plate and the lower support rod are spaced apart and arranged parallel to each other, the upper support plate and the lower support plate are connected by at least one support rod, a plurality of the top support bolts are provided and symmetrically threaded and penetrated on both sides of the lower support plate, and the lower support plate can be mounted on the cylinder body.

[0008] Preferably, two support rods are symmetrically arranged and located between the two inner support bolts.

[0009] Preferably, the support rod is detachably connected to the upper support plate and the lower support plate.

[0010] Furthermore, both ends of the support rod are arranged in a stepped shape and are respectively plugged into the upper support plate and the lower support plate.

[0011] Furthermore, a plurality of fixing pins are inserted into the outer wall of the lower support plate, and the number of the fixing pins corresponds to the number of the support rods and the corresponding support rods are penetrated.

[0012] Furthermore, the support rod is connected and fixed to the upper support plate by countersunk screws.

[0013] Preferably, the upper support plate and the lower support plate are both arc-shaped plates.

[0014] Furthermore, the arc length of the upper support plate is smaller than the arc length of the lower support plate.

[0015] A second aspect of the present invention provides a method for using a marine diesel engine stuffing box disassembly and assembly tool, wherein the marine diesel engine stuffing box disassembly and assembly tool is used to disassemble and assemble the diesel engine stuffing box, comprising the following steps:

[0016] Determine the quantity of the disassembly and assembly tools according to the outer diameter of the diesel engine piston rod;

[0017] Installing a plurality of disassembly and assembly tools on the cylinder block of the diesel engine so that the support bolts are against the stuffing box;

[0018] Press multiple disassembly and assembly tools simultaneously to push the stuffing box out of the diesel engine cylinder block.

[0019] Preferably, a plurality of the disassembly and assembly tools are evenly spaced around the circumference of the diesel engine cylinder body.

[0020] The present invention provides a marine diesel engine stuffing box disassembly and assembly tool and a use method thereof, which have the following advantages:

[0021] The marine diesel engine stuffing box disassembly and assembly tool of the present invention can eject the stuffing box in the cylinder body through multiple disassembly and assembly tools distributed around the circumference of the piston rod. The multiple disassembly and assembly tools can be applied synchronously at the same time, so that the stuffing box is evenly stressed, and there is no need to use brute force to cause damage to the stuffing box and the cylinder body, thereby meeting the need for reinstallation of the stuffing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an axial schematic diagram of the overall structure of a marine diesel engine stuffing box disassembly and assembly tool, which is mainly embodied in the present invention;

[0023] Figure 2 The present invention mainly embodies a disassembly and assembly tool for a stuffing box of a marine diesel engine and a schematic diagram of the disassembly and assembly structure of a stuffing box in a diesel engine;

[0024] Figure 3This is a method flow chart of a method for using a marine diesel engine stuffing box disassembly and assembly tool, which is mainly embodied in the present invention;

[0025] In the figure:

[0026] 1-disassembly and assembly tool; 11-upper support plate; 12-lower support plate; 13-support rod; 14-top support bolt; 2-fixing pin; 3-countersunk screw; 4-cylinder body; 5-piston rod; 6-stuffing box. DETAILED DESCRIPTION

[0027] 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1 and Figure 2 The present application provides a disassembly and assembly tool for a marine diesel engine stuffing box 6, including multiple groups of disassembly and assembly tools 1, the disassembly and assembly tools 1 include an upper support plate 11, a lower support plate 12, a support rod 13 and a top support bolt 14, the upper support plate 11 and the lower support rod 13 are spaced apart and arranged parallel to each other, the upper support plate 11 and the lower support plate 12 are connected by at least one support rod 13, a plurality of top support bolts 14 are installed and symmetrically threaded and penetrated on both sides of the lower support plate 12, and the lower support plate 12 can be mounted on the cylinder body 4.

[0029] Furthermore, two supporting bolts 14 are symmetrically installed on the support rod 13 and are located between two inner supporting bolts 14. In this embodiment, two supporting bolts are preferably installed.

[0030] Reference Figure 1 The support rod 13 is detachably connected to the upper support plate 11 and the lower support plate 12. Specifically, both ends of the support rod 13 are stepped and respectively plugged into the upper support plate 11 and the lower support plate 12, and the upper and lower stepped surfaces of the support rod 13 are respectively in contact with the planes of the upper support plate 11 and the lower support plate 12.

[0031] Furthermore, a plurality of fixing pins 2 are installed and inserted on the outer wall of the lower support plate 12, and the number of the fixing pins 2 corresponds to the number of the support rods 13 and is penetrated by corresponding support rods 13; the support rods 13 are connected and fixed to the upper support plate 11 by countersunk screws 3, thereby further ensuring the stability of the connection of the disassembly and assembly tool 1 and ensuring the uniform output of the disassembly and assembly tool 1.

[0032] Furthermore, the upper support plate 11 and the lower support plate 12 are both arc-shaped plates, and the arc length of the upper support plate 11 is smaller than the arc length of the lower support plate 12. The lower support plate 12 with a longer arc length can facilitate the installation of the supporting bolts 14 and increase the contact area to further ensure uniform force.

[0033] Refer to 2 and Figure 3 The present invention also provides a method for using a disassembly tool for a marine diesel engine stuffing box 6, and using the above-mentioned disassembly tool for a marine diesel engine stuffing box 6 to disassemble and assemble the diesel engine stuffing box 6 comprises the following steps:

[0034] S1, determine the number of disassembly and assembly tools 1 according to the outer diameter of the diesel engine piston rod 5. Specifically, multiple disassembly and assembly tools 1 are evenly spaced around the circumference of the diesel engine cylinder body 4, so as to ensure that the force on the stuffing box 6 is uniform at all locations in the circumferential direction as much as possible.

[0035] S2, multiple disassembly and assembly tools 1 are installed on the diesel engine cylinder block 4 and the support bolts 14 are abutted against the stuffing box 6.

[0036] S3, pressing a plurality of disassembly and assembly tools 1 simultaneously, thereby evenly exerting force on the stuffing box 6 at various locations in the circumferential direction, thereby ejecting the stuffing box 6 from the diesel engine cylinder block 4.

[0037] The above is only a preferred embodiment of the present invention, and is not any formal or substantial limitation of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be regarded as the protection scope of the present invention. Any technician familiar with this profession, without departing from the spirit and scope of the present invention, can make some changes, modifications and equivalent changes made by using the technical content disclosed above, which are equivalent embodiments of the present invention; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A marine diesel engine stuffing box disassembly and assembly tool, characterized in that: It comprises a plurality of disassembly and assembly tools, which comprise an upper support plate, a lower support plate, a support rod and a top support bolt. The upper support plate and the lower support rod are spaced apart and arranged parallel to each other. The upper support plate and the lower support plate are connected by at least one support rod. A plurality of top support bolts are provided and symmetrically threaded and penetrated on both sides of the lower support plate. The lower support plate can be mounted on the cylinder body.

2. The marine diesel engine stuffing box disassembly and assembly tool according to claim 1, characterized in that: The support rods are symmetrically arranged with two of them and are located between the two inner support bolts.

3. A marine diesel engine stuffing box disassembly and assembly tool as claimed in claim 1, characterized in that: The support rod is detachably connected to the upper support plate and the lower support plate.

4. The marine diesel engine stuffing box disassembly and assembly tool as claimed in claim 3, characterized in that: Both ends of the support rod are arranged in a stepped shape and are plugged into the upper support plate and the lower support plate respectively.

5. The marine diesel engine stuffing box disassembly and assembly tool as claimed in claim 4, characterized in that: A plurality of fixing pins are inserted on the outer wall of the lower support plate, and the number of the fixing pins corresponds to the number of the support rods and the corresponding support rods are passed through.

6. The marine diesel engine stuffing box disassembly and assembly tool as claimed in claim 3, characterized in that: The support rod is connected and fixed to the upper support plate by countersunk screws.

7. The marine diesel engine stuffing box disassembly and assembly tool according to claim 1, characterized in that: The upper support plate and the lower support plate are both arc-shaped plates.

8. The marine diesel engine stuffing box disassembly and assembly tool as claimed in claim 7, characterized in that: The arc length of the upper support plate is smaller than the arc length of the lower support plate.

9. A method for using a marine diesel engine stuffing box disassembly and assembly tool, characterized in that: Using the marine diesel engine stuffing box disassembly and assembly tool as described in any one of claims 1 to 8 to disassemble and assemble the diesel engine stuffing box comprises the following steps: Determine the quantity of the disassembly and assembly tools according to the outer diameter of the diesel engine piston rod; Installing a plurality of disassembly and assembly tools on the cylinder block of the diesel engine so that the support bolts are against the stuffing box; Press multiple disassembly and assembly tools simultaneously to push the stuffing box out of the diesel engine cylinder block.

10. The method for using the marine diesel engine stuffing box disassembly and assembly tool as claimed in claim 9, characterized in that: A plurality of the disassembly and assembly tools are evenly spaced around the circumference of the diesel engine cylinder body.

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