Mounting tool and method for methanol sprayer of marine methanol diesel engine

Abstract

The invention discloses a mounting tool and method for a methanol sprayer of a marine methanol diesel engine. The mounting tool comprises a tool body, a middle pressing plate, a pressing block, a shaft and a telescopic device. The middle pressing plate and the pressing block tightly press the alcohol sprayer on the tool body through bolts, the telescopic device is connected to the rear side of the tool body through a shaft, can rotate and comprises a fixed block, a telescopic sleeve and a telescopic shaft, and the telescopic shaft is connected to the center of the fixed block through threads and can move front and back along the axis; the telescopic sleeve is connected to the front end of the telescopic shaft and can sleeve and position a nozzle of the alcohol sprayer, and the telescopic shaft rotates and compresses the nozzle through the telescopic sleeve, so that the alcohol sprayer is disassembled and assembled. According to the device, the disassembly of the alcohol sprayer is effectively realized, the maintenance work of the alcohol sprayer is ensured, the scratch and damage of the alcohol sprayer and a nozzle of the alcohol sprayer are avoided, the labor intensity is reduced, the working efficiency is improved, the product quality is ensured, and the device has the advantages of simple structure and convenience in operation.

Description

Technical Field

[0001] The invention relates to process equipment for a marine low-speed diesel engine, in particular to an installation tool and method for an alcohol injector for a marine methanol diesel engine, and belongs to the technical field of marine diesel engine manufacturing. Background Art

[0002] With the development of marine diesel engine technology, marine diesel engines using methanol as fuel have gradually gained popularity in the ship market. They can not only improve the economy of shipping, but also effectively reduce carbon emissions. As the main component of the methanol main engine, the alcohol injector is used to inject methanol into the combustion chamber. Its importance is the same as that of the fuel injector in the conventional main engine. The alcohol injector needs to be disassembled for inspection and maintenance during use. Due to the high precision and high cost of the alcohol injector, special tools are generally used for disassembly and assembly to ensure that it will not be damaged during the disassembly process. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an installation tool and method for an alcohol injector of a marine methanol diesel engine, so as to fix the alcohol injector, effectively complete the installation and disassembly of the alcohol injector, and ensure the maintenance of the alcohol injector.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] A mounting tool for a methanol diesel engine alcohol injector for a ship, comprising a tool body, an intermediate pressing plate, a pressing block, a shaft and a telescopic device;

[0006] The tool body is used to fix and place the alcohol sprayer, and includes a base plate, on which an upright front slot seat, a middle slot seat and a rear slot seat are fixed in parallel, and the front slot seat, the middle slot seat and the rear slot seat are respectively provided with semicircular grooves for positioning the upper, middle and lower parts of the alcohol sprayer, the upper part of the alcohol sprayer is fixed to the front slot seat by fixing bolts, the middle pressing plate fixes the middle part of the alcohol sprayer in the semicircular groove of the middle slot seat by bolts, and the pressing block fixes the lower part of the alcohol sprayer in the semicircular groove of the rear slot seat by bolts, and the telescopic device is connected to the rear side of the rear slot seat, and includes a fixed block, a telescopic sleeve and a telescopic shaft, the fixed block is rotatably connected to the rear slot seat through the shaft, the telescopic shaft is threadedly connected to the center of the fixed block and can move forward and backward along the axis, the telescopic sleeve is connected to the front end of the telescopic shaft and can be sleeved and positioned on the nozzle of the alcohol sprayer, the telescopic shaft rotates and compresses the nozzle through the telescopic sleeve to realize the disassembly and installation of the alcohol sprayer.

[0007] Furthermore, the shaft is inserted into shaft holes on one side of the rear groove seat and one side of the fixed block, the fixed block can rotate around the shaft, and a clamping ring is arranged at one end of the shaft to prevent the fixed block from falling off.

[0008] Furthermore, one end of the shaft is provided with a groove for installing the clamping ring.

[0009] Furthermore, the pressing block is a saddle-shaped component, and a circular arc groove opening downward is provided at the lower part for pressing and fixing the alcohol sprayer.

[0010] Furthermore, the inner walls of the semicircular groove of the rear groove seat and the arc groove of the pressing block are provided with arc-shaped lining plates for protecting the alcohol sprayer.

[0011] Furthermore, the arc-shaped lining plate is made of brass.

[0012] Furthermore, the fixing block is fixed on the rear groove seat by two round pins, so as to play a role in positioning and centering the telescopic shaft and the telescopic sleeve.

[0013] Furthermore, the rear end of the telescopic shaft is hexagonal, and the front is provided with an internal thread connected to the telescopic sleeve. The front end of the telescopic sleeve matches the nozzle of the alcohol sprayer, and the rear end is an external thread connected to the telescopic shaft.

[0014] Furthermore, the telescopic sleeve and the telescopic shaft are coaxial with the nozzle of the alcohol sprayer.

[0015] Another technical solution of the present invention is:

[0016] A method for installing a methanol injector for a marine methanol diesel engine using the above-mentioned installation tool comprises the following specific steps:

[0017] 1) placing the alcohol sprayer in the bottom plate, fixing the upper part of the alcohol sprayer on the front slot seat by fixing bolts, fixing the intermediate pressing plate on the middle slot seat by bolts, so that the middle part of the alcohol sprayer is pressed tightly in the semicircular groove of the middle slot seat, fixing the pressing block on the rear slot seat by bolts, so that the lower part of the alcohol sprayer is pressed tightly in the semicircular groove of the rear slot seat;

[0018] 2) connecting the telescopic device to one side of the rear groove seat through the shaft, rotating the fixed block around the shaft to the center position of the installation tool, and fixing the fixed block to the rear groove seat through two round pins, so that the telescopic shaft and telescopic sleeve of the telescopic device are aligned with the nozzle of the alcohol sprayer;

[0019] 3) Rotate the telescopic shaft to move forward, push the telescopic sleeve to insert and press the nozzle of the alcohol sprayer, and then compress the nozzle, so as to realize the disassembly operation of the alcohol sprayer.

[0020] Compared with the conventional technology, the present invention achieves the following effects:

[0021] 1. The present invention effectively realizes the disassembly of the alcohol sprayer by fixing and compressing the alcohol sprayer, reduces labor intensity, improves work efficiency, and ensures the maintenance of the alcohol sprayer.

[0022] 2. The arc-shaped lining plate and the telescopic device avoid scratches and damages to the alcohol sprayer and its nozzle, thus ensuring product quality.

[0023] 3. The present invention has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] In the figure, 1-tool body, 2-arc lining, 3-shaft, 4-fixing block, 5-telescopic sleeve, 6-middle pressure plate, 7-pressure block, 8-bolt, 9-bolt, 10-bolt, 11-retaining ring, 12-telescopic shaft, 13-front slot seat, 14-middle slot seat, 15-rear slot seat, 16-bottom plate, 18-fixing bolt. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are not intended to limit the scope of implementation of the present invention. All equivalent changes and modifications made based on the contents of this specification belong to the technical scope of protection claimed in the present application.

[0027] The invention is used for the installation of an alcohol injector for a marine methanol diesel engine.

[0028] Example

[0029] See also Figure 1 The installation tool of the methanol diesel engine alcohol injector for a ship comprises a tool body 1, an intermediate pressing plate 6, a pressing block 7, a shaft 3 and a telescopic device.

[0030] The tool body 1 is a carbon steel weldment, which is used to fix the alcohol sprayer, and its structure is designed according to the outer dimensions of the alcohol sprayer. The tool body 1 includes a base plate 16, on which an upright front slot seat 13, a middle slot seat 14 and a rear slot seat 15 are fixed in parallel, and the front slot seat 13, the middle slot seat 14 and the rear slot seat 15 are respectively provided with a semicircular groove at the upper, middle and lower parts of the alcohol sprayer, and its clamping size matches the outer shape of the alcohol sprayer. The base plate 16 is provided with a circular hole, through which the installation tool can be fixed on a work platform or a designated working position.

[0031] The upper portion of the alcohol sprayer is fixed to the front groove seat 13 by means of fixing bolts 18 .

[0032] Before placing the alcohol sprayer, the intermediate pressure plate 6 is removed first, and after the alcohol sprayer is placed, the intermediate pressure plate 6 is reinstalled. The intermediate pressure plate 6 presses the middle part of the alcohol sprayer into the semicircular groove of the middle groove seat 14 through bolts 9, and can effectively reinforce the tool body 1 to prevent deformation.

[0033] Before installing the alcohol sprayer, the pressing block 7 is removed in advance, and the pressing block 7 is reassembled after the alcohol sprayer is placed. The pressing block 7 is a saddle-shaped component, and the lower part is provided with an arc groove with an opening downward, which is used to press the alcohol sprayer. The pressing block 7 is fixedly connected to the rear groove seat 15 by bolts 8, and the lower part of the alcohol sprayer is pressed in the semicircular groove of the rear groove seat 15, and the tool body 1 is well reinforced. The inner wall of the semicircular groove of the rear groove seat 15 and the arc groove of the pressing block 7 is provided with an arc lining plate 2, and the arc lining plate 2 is made of brass. The selection of brass material is to consider that brass is softer, and can effectively prevent the damage of the alcohol sprayer caused by collision during the disassembly and assembly process of the alcohol sprayer.

[0034] The telescopic device is connected to the rear side of the rear groove seat 15 through the shaft 3, and includes a fixed block 4, a telescopic sleeve 5 and a telescopic shaft 12. The telescopic device can rotate around the shaft 3, and the purpose is that after the alcohol sprayer is placed on the tool body 1, the rotation of the telescopic device can align the telescopic sleeve 5 with the nozzle of the alcohol sprayer. If the telescopic device is fixed first, the nozzle will collide with the telescopic sleeve 5 when the alcohol sprayer is placed, resulting in damage to the nozzle.

[0035] The fixing block 4 is rotatably connected to the rear groove seat 15 through the shaft 3. The shaft 3 is inserted into the shaft holes on one side of the rear groove seat 15 and one side of the fixing block 4, and its function is to connect the telescopic device with the tool body 1, and the fixing block 4 can rotate around the shaft 3. One end of the shaft 3 has an enlarged diameter and a groove on the other end for mounting a retaining ring 11 to prevent the fixing block 4 from falling off.

[0036] The telescopic shaft 12 is connected to the center of the fixed block 4 by a thread and can move forward and backward along the axis; the front end diameter of the telescopic shaft 12 is larger, the middle diameter is smaller, and the rear end is hexagonal; the front end is provided with an internal thread connected to the telescopic sleeve 5.

[0037] The telescopic sleeve 5 is connected to the front end of the telescopic shaft 12, and the rear part is provided with an external thread matched with the internal thread of the telescopic shaft 12, and the front part matches the nozzle of the alcohol sprayer and can be sleeved and positioned.

[0038] When the telescopic device rotates around the axis 3 to the center position of the installation tool, the fixed block 4 is fixed to the rear groove seat 15 by two round pins and is fastened to the tool body 1 by bolts 10, so that the telescopic shaft 12 and the telescopic sleeve 5 of the telescopic device are accurately positioned and aligned with the nozzle of the alcohol sprayer and are on the same axis.

[0039] When the installation tool is not in use, the bolt 10 is placed Figure 1 The position shown is taken out when the alcohol sprayer needs to be disassembled and installed in the circular holes on both sides of the fixing block 4, and the telescopic device is fixed on the tool body 1.

[0040] When the telescopic shaft 12 is rotated, the telescopic sleeve 5 can be pushed forward or backward, and the nozzle of the alcohol sprayer can be compressed by the telescopic sleeve 5 to compress the spring inside the alcohol sprayer, thereby reducing the preload force of the spring inside the alcohol sprayer to achieve disassembly and installation of the alcohol sprayer.

[0041] The method for installing the alcohol sprayer of the present invention is as follows:

[0042] 1) placing the alcohol sprayer in the bottom plate 16, fixing the upper part of the alcohol sprayer on the front slot seat 13 by fixing bolts 18, fixing the intermediate pressing plate 6 on the middle slot seat 14 by bolts 9, so that the middle part of the alcohol sprayer is pressed tightly in the semicircular groove of the middle slot seat 14, fixing the pressing block 7 on the rear slot seat 15 by bolts 8, so that the lower part of the alcohol sprayer is pressed tightly in the semicircular groove of the rear slot seat 15;

[0043] 2) connecting the telescopic device to one side of the rear groove seat 15 via the shaft 3, rotating the fixing block 4 around the shaft 3 to the center position of the installation tool, and fixing the fixing block 4 to the rear groove seat 15 via two round pins, so that the telescopic shaft 12 and the telescopic sleeve 5 of the telescopic device are aligned with the nozzle of the alcohol sprayer;

[0044] 3) Rotate the telescopic shaft 12 to move forward, push the telescopic sleeve 5 to insert and press the nozzle of the alcohol sprayer, and then compress the nozzle, so as to realize the disassembly operation of the alcohol sprayer.

[0045] The invention has been verified in practice to have the characteristics of simple structure, good operability, easy maintenance, etc., and reduces product damage and improves operating efficiency during the installation of the alcohol sprayer.

Claims

1. A mounting tool for a methanol injector of a marine methanol diesel engine, characterized in that: The installation tool comprises a tool body, an intermediate pressing plate, a pressing block, a shaft and a telescopic device; The tool body is used to fix and place the alcohol sprayer, and includes a base plate, on which an upright front slot seat, a middle slot seat and a rear slot seat are fixed in parallel, and the front slot seat, the middle slot seat and the rear slot seat are respectively provided with semicircular grooves for positioning the upper, middle and lower parts of the alcohol sprayer, the upper part of the alcohol sprayer is fixed to the front slot seat by fixing bolts, the middle pressing plate fixes the middle part of the alcohol sprayer in the semicircular groove of the middle slot seat by bolts, and the pressing block fixes the lower part of the alcohol sprayer in the semicircular groove of the rear slot seat by bolts, and the telescopic device is connected to the rear side of the rear slot seat, and includes a fixed block, a telescopic sleeve and a telescopic shaft, the fixed block is rotatably connected to the rear slot seat through the shaft, the telescopic shaft is threadedly connected to the center of the fixed block and can move forward and backward along the axis, the telescopic sleeve is connected to the front end of the telescopic shaft and can be sleeved and positioned on the nozzle of the alcohol sprayer, the telescopic shaft rotates and compresses the nozzle through the telescopic sleeve to realize the disassembly and installation of the alcohol sprayer.

2. The installation tool for the methanol injector of a marine methanol diesel engine according to claim 1, characterized in that: The shaft is inserted into the shaft holes on one side of the rear groove seat and one side of the fixed block. The fixed block can rotate around the shaft. A clamping ring is arranged at one end of the shaft to prevent the fixed block from falling off.

3. The installation tool for the methanol injector of a marine methanol diesel engine according to claim 2, characterized in that: One end of the shaft is provided with a groove for installing the clamping ring.

4. The installation tool for the methanol injector of a marine methanol diesel engine according to claim 1, characterized in that: The pressing block is a saddle-shaped component, and a circular arc groove opening downward is provided at the lower part thereof, which is used for pressing and fixing the alcohol sprayer.

5. The installation tool for the methanol injector of a marine methanol diesel engine according to claim 4, characterized in that: The inner walls of the semicircular groove of the rear groove seat and the arc groove of the pressing block are provided with arc-shaped lining plates for protecting the alcohol sprayer.

6. The installation tool for the methanol injector of a marine methanol diesel engine according to claim 5, characterized in that: The arc-shaped lining plate is made of brass.

7. The installation tool for the methanol injector of a marine methanol diesel engine according to claim 1, characterized in that: The fixed block is fixed on the rear groove seat by two round pins, and plays a role in positioning and centering the telescopic shaft and the telescopic sleeve.

8. The installation tool for the methanol injector of a marine methanol diesel engine according to claim 1 or 7, characterized in that: The rear end of the telescopic shaft is hexagonal, and the front is provided with an internal thread connected to the telescopic sleeve. The front end of the telescopic sleeve matches the nozzle of the alcohol sprayer, and the rear end is an external thread connected to the telescopic shaft.

9. The installation tool for the methanol injector of a marine methanol diesel engine according to claim 1, characterized in that: The telescopic sleeve and the telescopic shaft are coaxial with the nozzle of the alcohol sprayer.

10. A method for installing a methanol injector for a marine methanol diesel engine using the installation tool according to claim 1, characterized in that: The installation method comprises the following specific steps: 1) placing the alcohol sprayer in the bottom plate, fixing the upper part of the alcohol sprayer on the front slot seat by fixing bolts, fixing the intermediate pressing plate on the middle slot seat by bolts, so that the middle part of the alcohol sprayer is pressed tightly in the semicircular groove of the middle slot seat, fixing the pressing block on the rear slot seat by bolts, so that the lower part of the alcohol sprayer is pressed tightly in the semicircular groove of the rear slot seat; 2) connecting the telescopic device to one side of the rear groove seat through the shaft, rotating the fixed block around the shaft to the center position of the installation tool, and fixing the fixed block to the rear groove seat through two round pins, so that the telescopic shaft and telescopic sleeve of the telescopic device are aligned with the nozzle of the alcohol sprayer; 3) Rotate the telescopic shaft to move forward, push the telescopic sleeve to insert and press the nozzle of the alcohol sprayer, and then compress the nozzle, so as to realize the disassembly operation of the alcohol sprayer.

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