CN102303301A - Flame ring dismounting device of diesel engine cylinder liner - Google Patents

Abstract

The invention discloses a flame ring dismantling device for a cylinder liner of a diesel engine, which comprises a dismantling cylinder, a cross support plate, several adjustment screws, a tension disc, a positioning mechanism, several radial positioning screws, a rotating rod, a lifting shackle, a cross The support plate is fixed on the upper end of the disassembly cylinder, and its outer ends are respectively fixedly connected with several adjustment nuts, and the adjustment screws are screwed on the adjustment nuts; the radial outer edge of the tension disc is fixed in the lower end of the disassembly cylinder, and the radial direction inside the disassembly cylinder Several nut seats are fixed, the disassembly tube is set in the flame circle, the radial positioning screw passes through the nut seat, and its end extends into the positioning hole of the flame circle; one outer end of the cross support plate is fixedly connected with the positioning mechanism, and the cross support plate The upper part is respectively connected with the lifting shackle and the rotating rod. The invention has simple structure and convenient adjustment, overcomes the difficulty of disassembling and assembling the flame circle due to the narrow space where the diesel engine is used, improves the disassembling and assembling efficiency, and reduces the labor intensity of operators.

Description

Flame Ring Removal Device of Diesel Engine Cylinder Liner

technical field

The invention relates to a maintenance tool for a diesel engine, in particular to a device for dismantling a flame ring at the upper end of a cylinder liner, and belongs to the technical field of mechanical maintenance.

Background technique

The cylinder liner assembly of a high-power diesel engine generally includes a flame ring installed on the upper part of the cylinder liner. The flame ring is directly in contact with the high-temperature and high-pressure gas, and is easily damaged by the chemical corrosion of the high-temperature gas for a long time. When the flame ring is damaged, it only needs to be replaced directly instead of the whole Substantial maintenance costs can be saved by replacing the entire cylinder liner assembly. When removing the flame ring, maintenance personnel stand on the installation stool, use simple tools, and use the annular groove in the flame ring to disassemble and assemble the flame ring. This method of operation requires a large operating space, it is difficult to use in a narrow place, and it is troublesome to adjust; the outer circle of the flame circle after burning is deformed, and it is tightly combined with the inner hole of the cylinder liner, and its lower end is embedded in the groove of the inner hole of the cylinder liner. In the groove, the two are closely combined, and a large pulling force is required to pull out the flame circle. This method of disassembling the flame circle cannot disassemble and assemble the large-scale diesel engine with a large mass of flame circle.

Contents of the invention

The object of the present invention is to provide a device with simple structure, convenient operation and high efficiency for pulling out the flame ring of the cylinder liner of the diesel engine.

The present invention is achieved through the following technical solutions:

A flame ring removal device for a diesel engine cylinder liner, including a disassembly cylinder, a cross support plate, several adjustment screws, a tension plate, a positioning mechanism, several radial positioning screws, a rotating rod, and a lifting shackle, the cross support plate It is fixed on the upper end of the disassembly cylinder, and the outer ends of the cross support plate are respectively fixedly connected with several adjustment nuts, and the adjustment screws are screwed on the adjustment nuts; the radial outer edge of the tension disc is fixed in the lower end of the disassembly cylinder, and the disassembly There are several nut seats radially fixed on the inner side of the tube; the disassembly tube is set in the flame circle, the radial positioning screw passes through the nut seat, and the end of the radial positioning screw extends into the positioning hole of the flame circle; the outer end of the cross support plate is connected with the positioning The mechanism is fixedly connected, and the upper part of the cross support plate is respectively connected with the lifting shackle and the rotating rod.

The purpose of the present invention can also be further achieved through the following technical measures.

The aforementioned flame ring removal device for the cylinder liner of a diesel engine, wherein the positioning mechanism includes a positioning block, a positioning sleeve, and a positioning pin, the positioning block is fixedly connected to an outer end of the cross support plate, and the positioning sleeve is embedded in the positioning block In the lower inner hole, the positioning pin passes through the positioning block and the positioning sleeve, and the lower end of the positioning pin is embedded in the positioning hole on the end face of the cylinder liner.

In the aforementioned flame ring dismantling device for the cylinder liner of a diesel engine, several stop pins are arranged in the middle of the dismantling cylinder; the dismantling cylinder is provided with an axial butt joint.

In the aforementioned flame ring removal device for the cylinder liner of a diesel engine, the tension disc is provided with several notches in the radial direction, and the positions of the notches correspond to the positions of the radial positioning screws.

The invention has simple structure and convenient adjustment, overcomes the difficulty of disassembling and assembling the flame circle due to the narrow space where the diesel engine is used, improves the disassembling and assembling efficiency, and reduces the labor intensity of operators. The invention has high strength and good rigidity, and can disassemble and assemble the flame ring of large mass, not only the flame ring of the cylinder liner of the L-type diesel engine, but also the flame ring of the cylinder liner of the V-type diesel engine, which is convenient and fast, and is a widely used Applied disassembly and assembly device for diesel engine parts.

The invention, with advantages and characteristics, will be illustrated and explained by the following non-limiting description of preferred embodiments, given by way of example only with reference to the accompanying drawings.

Description of drawings

Fig. 1 is a structural representation of the present invention's use state;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is an enlarged view of part I of Fig. 1 .

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Figures 1 to 3, the present invention includes a disassembly cylinder 1, a cross support plate 2, 4 adjustment screws 3, a tension disc 4, a positioning mechanism 5, 3 radial positioning screws 6, a rotating rod 7, a lifting dismounting Buckle 8, the cross support plate 2 adopts steel plate welding structure, a support plate is slotted in the middle, and the other support plate is inserted in the groove and welded to each other to form a cross. The dismounting cylinder 2 is a thin-walled slotted cylindrical part provided with an axial butt seam 21, which can adapt to slight changes in the inner diameter of the flame circle 20 of the cylinder liner. The radial outer edge of the tension disc 4 is welded in the lower end of the dismounting cylinder 1, which plays a supporting role to the disassembling cylinder 1, prevents the dismounting cylinder 2 from being deformed when it is stressed, and increases the rigidity of the disassembling cylinder 2. The upper end of the dismantling cylinder 1 has a cross groove, and the cross support plate 2 is inserted into the cross groove to weld the cross support plate 2 and the disassembly cylinder 1 into one body, which improves the rigidity of the cross support plate 2 and the disassembly cylinder 1.

The positioning mechanism 5 includes a positioning block 51, a positioning sleeve 52, and a positioning pin 53. The three outer ends of the cross support plate 2 are welded to three adjustment nuts 9 respectively, and the fourth outer end of the cross support plate 2 is welded to the positioning block 51. Three of the four adjusting screws 3 are respectively screwed on the corresponding three adjusting nuts 9, and the other adjusting screw 3 is screwed on the positioning block 51. Three nut seats 11 are evenly distributed radially on the inner side of the disassembly cylinder 1, and the positioning sleeve 52 is embedded in the inner hole 511 on the lower side of the positioning block 51, leaving a gap between the two, which is convenient for adjusting the end surface of the diesel engine cylinder liner and the cross support plate 2 relative position between them. The positioning pin 53 passes through the positioning block 51 and the positioning sleeve 52, and its lower end is embedded in the positioning hole 10 on the end face of the cylinder liner, so as to position the disassembly cylinder 1 and the cross support plate 2 on the end face of the cylinder liner 30 of the diesel engine. 

Three retaining pins 40 are evenly distributed in the middle of the assembly and disassembly cylinder 1, and are used for the axial positioning of the assembly and disassembly cylinder 1 on the flame circle 20. The tension disc 4 is provided with three gaps 41 in the radial direction. The positions of the gaps 31 correspond to the positions of the radial positioning screws 6, which are convenient for screwing them into the nut seat 11. The ends of the radial positioning screws 6 extend into the positioning holes 201 of the flame circle. The dismantling tube 2 is connected with the flame circle 20 as a whole, and the flame circle 20 can be pulled out by pulling the dismantling tube 2 . The rotating rod 7 is fixedly connected with the connection block 22 obliquely fixed on the cross support plate 2 through its one end thread, and the upper side of a support plate of the cross support plate 2 is provided with two mounting holes for lifting shackles 8, wherein the first installation The center of the hole 231 is perpendicular to the end face of the dismantling barrel 1, and is used for disassembling the flame ring of the L-type diesel engine cylinder liner; the center of the second installation hole 232 is oblique to the axis of the dismantling barrel 2, and is used for disassembling the flame of the V-type diesel engine cylinder liner. Circle 20.

When disassembling the diesel engine cylinder liner flame ring, first put the cross support plate 2 together with the disassembly tube 1 into the diesel engine cylinder liner until the three stop pins 40 in the middle of the disassembly tube 1 fall to the upper end of the flame ring 20 . Then the positioning pin 53 passes through the positioning block 51 and the positioning sleeve 52, so that its lower end is embedded in the positioning hole 10 on the end face of the cylinder liner 30, and the disassembling cylinder 1 and the cross support plate 2 are positioned on the end face of the cylinder liner of the diesel engine. Screw the four adjusting screws 3 on the three adjusting nuts 9 at the end of the cross support plate 2 and the threaded holes of the positioning block 51, so that the ends of the adjusting screws 3 are against the end face of the cylinder liner of the diesel engine, and adjust the four adjusting screws respectively. The protruding length of the screw 3 makes the axis of the dismounting cylinder 1 as close as possible to the axis of the flame circle 20, which is convenient for pulling out the flame circle 20. Then pass the three radial positioning screws 6 through the corresponding nut seats 12 respectively, and the ends of the radial positioning screws 6 extend into the positioning holes 201 of the flame circle, so that the disassembly tube 2 and the flame circle 20 are connected into one body. Then one end of the rotating rod 7 is fixedly connected with the connecting block 22 at the upper end of the cross support plate 2 by threads. Pass the horizontal pin of the lifting shackle 8 through the first mounting hole 231 (for disassembling the cylinder liner flame ring of the L-type diesel engine) or the second mounting hole 232 (for disassembling the V-type diesel engine) of a support plate of the cross support plate 2 cylinder liner flame ring), so that the lifting shackle 8 is hinged with the cross support plate 2. Utilize manpower or small lifting equipment to lift the lifting shackle 8, when the positioning pin 53 is separated from the end face of the cylinder liner of the diesel engine, the rotating rod 7 can be repeatedly and continuously pushed in the forward and reverse directions to increase the torque of rotating the flame circle; Lift the flame ring 20, and the disassembly tube 1 drives the flame ring 20 to rotate forward and reverse through three radial positioning screws 6, so that the flame ring 20 is gradually loosened, and the flame ring 20 can be disassembled from the cylinder liner 30 of the diesel engine. the

In addition to the above-mentioned embodiments, the present invention can also have other implementations, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims (5)

1. the flame circle provision for disengagement of a diesel cylinder liner; It is characterized in that: comprise dismounting tube, cross support plate, several adjustment screws, tension pulley, detent mechanism, several radial location screws, dwang, play hoisting shackle; Said cross support plate is fixed on dismounting tube upper end; Cross support plate outer end is fixedly connected with several adjustment nuts respectively, and the adjustment screw is screwed on the adjustment nut; The radially outer edge of said tension pulley is fixed in the dismounting tube lower end, and said dismounting tube inboard radially is fixed with several nut seats; The dismounting jacket casing is contained in the flame circle, and the radial location screw passes nut seat, and radial location screw termination puts in the flame circle hole; Cross support plate one outer end is fixedly connected with detent mechanism, and cross support plate top is connected with a hoisting shackle, dwang respectively.

2. the flame circle provision for disengagement of diesel cylinder liner as claimed in claim 1; It is characterized in that: said detent mechanism comprises locating piece, positioning sleeve, alignment pin; Said locating piece is fixedly connected with an outer end of cross support plate; Said positioning sleeve is inlaid in the locating piece downside endoporus; Said alignment pin passes locating piece, positioning sleeve, and the alignment pin lower end embeds in the cylinder jacket end face locating hole.

3. the flame circle provision for disengagement of diesel cylinder liner as claimed in claim 1 is characterized in that: said dismounting tube middle part is provided with several backing pins.

4. the flame circle provision for disengagement of diesel engine diesel cylinder liner as claimed in claim 1 is characterized in that: said dismounting tube is provided with axial abutment joint.

5. the flame circle provision for disengagement of diesel engine diesel cylinder liner as claimed in claim 1, it is characterized in that: said tension pulley radially is provided with several breach, and said gap position is corresponding with the radial location screw position.

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