CN116652807A - Method and equipment for repairing and honing cylinder sleeve of marine internal combustion engine - Google Patents
Method and equipment for repairing and honing cylinder sleeve of marine internal combustion engine Download PDFInfo
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- CN116652807A CN116652807A CN202310809348.4A CN202310809348A CN116652807A CN 116652807 A CN116652807 A CN 116652807A CN 202310809348 A CN202310809348 A CN 202310809348A CN 116652807 A CN116652807 A CN 116652807A
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- combustion engine
- cylinder liner
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 238000012423 maintenance Methods 0.000 claims abstract description 49
- 239000004575 stone Substances 0.000 claims description 41
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 240000004282 Grewia occidentalis Species 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 13
- 230000001133 acceleration Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000003754 machining Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/10—Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a maintenance and honing method and equipment for a cylinder liner of a marine internal combustion engine, wherein the method and equipment are used for setting the feeding speed, the acceleration and the feeding distance of a feeding mechanism, the rotating speed of a rotating mechanism, the air pressure value of an expanding mechanism, the expanding radius and the material parameters of honing oilstones, and realizing honing of reticulate patterns on the inner wall of the cylinder liner of the marine internal combustion engine. The marine internal combustion engine cylinder liner maintenance and honing equipment includes: the device comprises a frame, a feeding mechanism, a rotating mechanism, a connecting component and a honing head; the machine frame is a door-type machine frame, the bottom of the machine frame is fixedly arranged on the working ground, the upper part of the machine frame is provided with an upper cross beam, the upper cross beam is fixedly arranged in parallel with a feeding mechanism, the lower part of the feeding mechanism is provided with a rotating mechanism, the lower part of the rotating mechanism is provided with a connecting component, and the lower part of the connecting component is provided with a honing head; the honing head adopts a pneumatic mode to enable honing oilstone to be attached to the inner wall of the cylinder sleeve so as to realize maintenance and honing. The device has advanced design and reliable performance. Meanwhile, the working stroke of the main shaft is shorter, and the main shaft is suitable for maintenance, honing of cylinder bodies, box body holes and the like.
Description
Technical Field
The invention relates to a maintenance and honing method and equipment for a cylinder sleeve of a marine internal combustion engine, belonging to the field of polishing equipment.
Background
The cylinder liner of the internal combustion engine is an important part of the internal combustion engine, the data of the inner diameter increment, roundness and cylindricity of the cylinder liner have great influence on the power of the internal combustion engine, but when the internal combustion engine is in a working state, cavitation erosion occurs on the inner wall of the cylinder liner due to uneven heating of the cylinder liner, abrasion of foreign matters, corrosion of sulfides in fuel oil, corrosion of cooling water and repeated impact deformation caused by reciprocating motion of a piston, and the cavitation erosion causes larger deviation of the inner diameter increment, roundness and cylindricity of the internal combustion engine, so that the cylinder liner of the internal combustion engine needs to be checked and removed regularly, otherwise, the efficiency of the internal combustion engine is reduced, the service life is greatly shortened, and even the internal combustion engine is scrapped.
The marine internal combustion engine is mostly a high-power internal combustion engine, the size is large, the traditional overhaul process often needs to open the cylinder cover or detach the cylinder sleeve for inspection, and even needs to enter the cylinder sleeve for measurement by a professional, so that a great deal of time is wasted, and the shutdown cost is high.
Therefore, it is necessary to invent a maintenance and honing method and equipment for the cylinder liner of the marine internal combustion engine, which are used for replacing manual daily inspection of the cylinder liner of the internal combustion engine, evaluating the increment of the inner diameter, the roundness and the cylindricity of the cylinder liner of the internal combustion engine, and providing data support for the maintenance and honing of the cylinder liner of the internal combustion engine so as to achieve the purposes of saving time, reducing the maintenance cost and freeing manual work.
Disclosure of Invention
In order to achieve the above purpose, the invention provides a method and equipment for maintaining and honing the cylinder liner of the marine internal combustion engine, so as to meet the maintenance and honing of the cylinder liner of the marine internal combustion engine and realize high-efficiency operation.
In a first aspect of the invention, a method for repairing and honing a cylinder liner of a marine internal combustion engine is provided, corresponding repairing and honing steps being as follows:
step 1, setting the inner diameter of a cylinder body on an upper computer; setting the inner diameter of a cylinder, and automatically operating maintenance and honing equipment; every time power is cut off, power is transmitted again, and all the power is required to be reset;
step 2, the maintenance and honing equipment runs up and down to reach proper upper stop position and lower stop position; the position of the maintenance and honing equipment is higher than the upper limit position of the required cylinder body;
step 3, the maintenance and honing equipment automatically runs up and down and automatically rotates; the honing head moves longitudinally and clamps the cylinder body rapidly; the honing head inlaid with oilstone is driven to rotate by a vertically arranged main shaft and simultaneously performs vertical reciprocating feeding motion.
In the step 2, the center of the cylinder sleeve of the internal combustion engine and the axle center of the rotating mechanism of the maintenance and honing device are ensured to be on the same vertical line, and the connecting assembly adopts the cross universal coupling during processing, so that the connecting assembly has larger angular displacement, the honing head and the inner wall of the cylinder sleeve are enabled to float relatively, and the honing head can be led by using the inner wall of the cylinder sleeve of the internal combustion engine, thereby realizing relatively accurate axle center alignment.
In the step 3, the honing head rotates and reciprocates in the cylinder sleeve under the action of the feeding mechanism and the reciprocating mechanism during maintenance and honing, the honing oilstone cuts the inner wall of the cylinder sleeve under the action of the opening mechanism to form regularly crossed and non-repeated reticulate pattern cutting marks, the contact area between the inner wall of the cylinder sleeve and the surface of the oilstone is continuously increased along with the honing process, the mutual cutting action is continuously weakened, the roundness and cylindricity of the inner wall of the cylinder sleeve are continuously perfected, and finally the maintenance and honing of reticulate patterns of the inner wall of the cylinder sleeve are completed.
Abrasive flow machining is a process of removing microscopic irregularities of a workpiece surface by scraping action of abrasive particles by forcing a viscous abrasive medium containing abrasive in a semi-fluid state under pressure against the surface being machined. The workpiece is installed and is pressed in the fixture by the pressing claw, the upper grinding material chamber and the lower grinding material chamber of the fixture are connected, the grinding material chamber is filled with viscous grinding materials, and the piston applies pressure to all surfaces through the viscous grinding materials in the reciprocating motion process, so that the viscous grinding materials repeatedly slide on the surface to be processed of the workpiece under the action of certain pressure, and the workpiece is uniformly pressed on the workpiece by using abrasive cloth to move at a high speed, thereby achieving the purpose of polishing or deburring the surface.
In a second aspect of the invention, there is provided a maintenance and honing device for a cylinder liner of a marine internal combustion engine, operating the maintenance and honing method described above, comprising in particular a frame, a feeding mechanism, a rotation mechanism, a connection assembly, a honing head;
the servo motor output shaft of the feeding mechanism rotates to drive the chain wheel structure to drive the rotating mechanism to longitudinally move, the rotating mechanism is connected with the honing head through the connecting assembly, and the honing head longitudinally moves.
The honing head is driven by pneumatic pressure to rapidly clamp the cylinder body.
The servo motor of the rotating mechanism drives the honing head inlaid with the oilstone to rotate along the direction of the main shaft.
The machine frame is a door-type machine frame, the bottom of the machine frame is installed on the working ground, the upper part of the machine frame is provided with an upper cross beam, and the feeding mechanism is fixedly installed in parallel.
The feed mechanism includes: servo motor, speed reducer, chain wheel and transmission chain;
the servo motor is fixedly arranged on the speed reducer, the chain wheel is arranged on the outer side of the speed reducer and meshed with the transmission chain, and one end of the transmission chain is fixedly connected with the rotating mechanism.
The servo motor, the speed reducer and the chain wheel are coaxial.
The lower part of the feeding mechanism is sequentially provided with the rotating mechanism, the connecting component, the honing head and the servo motor.
The rotating mechanism includes: the device comprises a motor frame, a motor, a sliding positioning beam, a pneumatic slip ring and a hanging ring;
the motor is vertically and downwards fixedly arranged in the motor frame, a hanging ring is arranged at the center of the top of the motor frame and connected with the transmission chain, the motor frame is fixedly arranged in the middle of the sliding positioning beam, the motor shaft penetrates through the pneumatic slip ring, and the connecting component is arranged below the motor shaft;
the sliding positioning beam is a rectangular frame and is arranged outside the frame in parallel to the ground for measurement, and comprises two steel pipes, two ends of the steel pipes are provided with baffle plates, idler wheels are arranged at the inner sides of four corners of the rectangular frame and are in contact with upright posts at two sides of the frame;
still further pneumatic sliding ring, pneumatic equipment is connected to the stiff end, and the rotating part is connected to the honing head.
The connecting assembly consists of two groups of cross universal couplings, and the middle parts of the two groups of cross universal couplings are connected through a flange plate.
The honing head is mounted at the lower part of the connecting assembly. Comprises a honing head main body, an expanding mechanism, a honing stone seat and a honing oilstone; the middle of the honing head body is of a cylindrical structure, the outer side of the honing head body is of a four-layer four-corner windmill structure, four layers of honing head bodies are arranged in parallel, and a projection included angle between every two layers is 45 degrees; the expansion mechanism adopts an air pressure mode, and double-rod air cylinders are arranged at four corners of each layer;
further, the opening direction of the double-rod air cylinder and the tangential direction of the rotation direction of the honing head form an included angle of 45 degrees, and the air inlet hole and the air outlet hole of each double-rod air cylinder are connected with the air inlet hole and the air outlet hole of the pneumatic slip ring.
The honing stone seat is of an elongated groove structure and is arranged on two cylinder rods which are spaced in the vertical direction through a connecting seat, honing stone is arranged on the honing stone seat, and the cutting included angle between each honing stone and the cylinder wall is 45 degrees;
preferably, the outer walls of two sides of the honing stone seat are different in height, the honing stone on the shorter side is in contact with the working surface, the height of the outer eave is lower than the height of the honing stone after installation, the screw holes are formed in the higher side to clamp the honing stone through the bolts, and the height of the outer eave is higher than the height of the honing stone after installation.
The invention discloses a maintenance and honing method for a cylinder liner of a marine internal combustion engine, which is specially designed with equipment capable of performing maintenance and honing aiming at the maintenance and honing of the cylinder liner of the marine internal combustion engine.
The invention has the following advantages:
1. greater applicability: the height of the frame can be customized according to the maximum length of the cylinder sleeve of the internal combustion engine in the ship; the honing stone seat adopts a double-rod cylinder as a support, so that a large range of machining sizes can be met; the cross universal coupling is used as a connecting component to lead the honing head to be guided by the inner wall of the cylinder sleeve of the internal combustion engine, so that the relevance between the machining precision of the whole system and the precision of a machine tool is reduced, and the honing head is more suitable for the working environment on a ship.
2. Compared with the traditional maintenance and honing machine tool, the structure is simpler, easy to manufacture, modular in design, easy to disassemble and assemble and high in maintenance degree.
Drawings
FIG. 1 is a schematic illustration of an application of the marine engine cylinder liner maintenance and honing apparatus of the present invention; a is a cylinder liner of an internal combustion engine;
FIG. 2 is a block diagram of the marine engine cylinder liner maintenance and honing apparatus of the present invention;
FIG. 3 is a schematic view of a rotary mechanism according to the present invention;
FIG. 4 is a schematic view of a connecting assembly according to the present invention;
FIG. 5 is a schematic view showing the overall structure of the honing head of the present invention;
FIG. 6 is a top view of the honing head of this invention;
FIG. 7 is a schematic view of the feed mechanism of the present invention;
figure 8 is an enlarged view of the honing stone seat of the invention.
Detailed Description
The invention is further described with reference to the following structural drawings and specific examples.
In a first aspect of the present invention, there is provided a maintenance and honing method for a cylinder liner of a marine internal combustion engine, comprising the steps of:
step 1, setting the inner diameter of a cylinder body on an upper computer; setting the inner diameter of a cylinder, and automatically operating maintenance and honing equipment; every time power is cut off, power is transmitted again, and all the devices must be reset;
step 2, the maintenance and honing equipment runs up and down to reach proper upper stop position and lower stop position; the position of the maintenance and honing equipment is higher than the upper limit position of the required cylinder body;
step 3, the maintenance and honing equipment automatically runs up and down and automatically rotates; the honing head moves longitudinally and clamps the cylinder body rapidly; the honing head inlaid with oilstone is driven to rotate by a vertically arranged main shaft and simultaneously performs vertical reciprocating feeding motion.
In the step 2, the center of the cylinder sleeve of the internal combustion engine and the axle center of the rotating mechanism of the maintenance and honing device are ensured to be on the same vertical line, and the connecting assembly adopts the cross universal coupling during processing, so that the connecting assembly has larger angular displacement, the honing head and the inner wall of the cylinder sleeve are enabled to float relatively, and the honing head can be led by using the inner wall of the cylinder sleeve of the internal combustion engine, thereby realizing relatively accurate axle center alignment.
In the step 3, the honing head rotates and reciprocates in the cylinder sleeve under the action of the feeding mechanism and the reciprocating mechanism during honing, the honing oilstone cuts the inner wall of the cylinder sleeve under the action of the opening mechanism to form a reticulate pattern cutting mark which regularly crosses and is not repeated, along with the honing process, the contact area between the inner wall of the cylinder sleeve and the surface of the oilstone is continuously increased, the mutual cutting action is continuously weakened, the roundness and cylindricity of the inner wall of the cylinder sleeve are continuously perfected, and finally, the maintenance and honing of reticulate patterns of the inner wall of the cylinder sleeve are completed.
Abrasive flow machining is a process of removing microscopic irregularities of a workpiece surface by scraping action of abrasive particles by forcing a viscous abrasive medium containing abrasive in a semi-fluid state under pressure against the surface being machined. The workpiece is installed and is pressed in the fixture by the pressing claw, the upper grinding material chamber and the lower grinding material chamber of the fixture are connected, the grinding material chamber is filled with viscous grinding materials, and the piston applies pressure to all surfaces through the viscous grinding materials in the reciprocating motion process, so that the viscous grinding materials repeatedly slide on the surface to be processed of the workpiece under the action of certain pressure, and the workpiece is uniformly pressed on the workpiece by using abrasive cloth to move at a high speed, thereby achieving the purpose of polishing or deburring the surface.
In a second aspect of the present invention, there is provided a marine internal combustion engine cylinder liner maintenance and honing apparatus, as shown in fig. 1 to 2, comprising a frame 1, a feed mechanism 2, a rotating mechanism 3, a connecting assembly 4, and a honing head 5, for the above-mentioned marine internal combustion engine cylinder liner maintenance and honing method.
The servo motor output shaft of the feeding mechanism rotates to drive the chain wheel structure to drive the rotating mechanism to longitudinally move, the rotating mechanism is connected with the honing head through the connecting assembly, and the honing head longitudinally moves.
The honing head is driven by pneumatic pressure to rapidly clamp the cylinder body.
The servo motor of the rotating mechanism drives the honing head inlaid with the oilstone to rotate along the direction of the main shaft.
The machine frame 1 is a door-type machine frame, and is used as an integral supporting structure, the bottom of the machine frame is fixedly arranged on the working ground, the upper part of the machine frame is provided with an upper cross beam, the feeding mechanism 2 is fixedly arranged, and the lower part of the feeding mechanism 2 is sequentially provided with the rotating mechanism 3, the connecting component 4 and the honing head 5;
the feed mechanism includes: a servo motor 21, a speed reducer 22, a chain wheel 23 and a transmission chain 24;
the servo motor 21 is used as power, the feeding speed, the acceleration and the feeding distance are controlled through teaching programming, and the speed reducer 22 is arranged at the output end of the servo motor 21 to reduce the rotating speed and increase the torque; the sprocket 23 is installed on the outer side of the speed reducer 22, the sprocket 23 is meshed with the transmission chain 24, the average transmission ratio is accurate in a chain transmission mode, the transmission chain 24 is meshed with the sprocket 23 to transmit power and motion, the accurate average transmission ratio can be maintained, the flexible transmission chain can meet the feeding distance, meanwhile, the occupation of the upper space of maintenance and honing equipment is reduced, and the flexible transmission chain has remarkable advantages when used for honing a large marine internal combustion engine.
The feeding mechanism 2 provides a honing stroke for the honing head 5 and drives the honing head 5 to do vertical reciprocating feeding movement;
the lower part of the feeding mechanism 2 is connected with the rotating mechanism 3.
The rotating mechanism 3 comprises a motor frame 31, a motor 32, a sliding positioning beam 33, a pneumatic slip ring 34 and a hanging ring 35.
The motor 32 can control the rotating speed of the motor through teaching programming to drive the honing head to rotate along the axis, and the motor 32 is vertically and downwards fixedly arranged in the motor frame 31;
a hanging ring 35 is arranged at the center of the top of the motor frame 31 and is connected with the transmission chain 24 through a special pin shaft, the motor frame 31 is fixedly arranged in the middle of the sliding positioning beam 33, an output shaft of the motor 32 passes through the pneumatic sliding ring 34, the connecting component 4 is arranged below the output shaft, and the motor 32, the pneumatic sliding ring 34 and the connecting component 4 are coaxial;
further, the sliding positioning beam 33 is a rectangular frame, is installed on the outer side of the frame 1 parallel to the ground, comprises two steel pipes, two ends of the steel pipes are provided with baffles, four corners of the rectangular frame are provided with idler wheels 331, the idler wheels are in contact with upright posts on two sides of the frame 1, and the rotating mechanism 3 can move up and down along the upright posts on two sides of the frame 1.
Because the transmission chain 24 is flexible, the horizontal movement can be carried out while the vertical feeding movement is carried out, at the moment, the coaxiality of the honing head and the cylinder sleeve of the internal combustion engine cannot be ensured, the uneven honing condition can be caused, the sliding positioning beam 33 is arranged, the rotating motor 32 can move along with the feeding mechanism 2 only in the vertical direction, the rotating mechanism and the honing head keep relatively stable in the horizontal direction, the self weight of the rotating mechanism and the honing head jointly pull the transmission chain 24, the horizontal angular displacement of the honing head is further avoided, and at the moment, the axial deviation of the honing head in the cylinder sleeve can ensure a relatively stable state.
The rotating mechanism 3 is connected below the feeding mechanism 2 and provides rotating power for the honing head 5, so that the honing head can rotate in one direction.
Further, the pneumatic slip ring 34 has a fixed end connected to an air compressing device, and a rotating portion connected to the honing head 5 for transmitting compressed air to the honing head 5 while preventing the ventilation pipe from being wound.
The lower part of the rotating mechanism 3 is provided with the connecting component 4;
the connecting component 4 can reliably connect the rotating mechanism 3 and the honing head 5, consists of two groups of cross universal couplings 41, and is connected with the middle through a flange plate 42, the cross universal couplings 41 can well adapt to larger angular displacement between transmission shafts, and the connecting component has the advantages of large transmission torque range, compact structure and high transmission efficiency, so that the honing head 5 can realize self-adaptive centering, and honing deviation caused when the rotating mechanism 3 and a cylinder sleeve cannot realize accurate centering is prevented; the flange 42 facilitates the removal and installation of the honing head while achieving a reliable connection.
The lower part of the connecting component 4 is provided with the honing head 5, and the honing head adopts a pneumatic mode to enable honing oilstones of the honing head to be attached to the inner wall of the cylinder sleeve so as to realize maintenance and honing.
The honing head 5 is mounted at the lower portion of the coupling assembly 4.
The honing head comprises a body 51, an expanding mechanism 52, a honing stone seat 53 and a honing stone 54; the middle of the body 51 is of a cylindrical structure, the outer side of the body is of a four-layer four-corner windmill structure, so that axial force generated during working can be well decomposed, the four layers are arranged in parallel, and a projection included angle between the two layers is 45 degrees;
the expanding mechanism 52 adopts a pneumatic mode, two-rod air cylinders 523 are installed at four corners of each layer, an included angle between the expanding direction of the two-rod air cylinders 523 and the tangential direction of the rotating direction of the honing head 5 is 45 degrees, the expanding mechanism 52 provides the pressure of the contact surface between the honing stone 54 and the cylinder sleeve of the internal combustion engine, and enables the honing stone 54 to radially move, and two groups of the two-rod air cylinders 523 provide support for one honing stone seat 53;
further, the air inlet 521 and the air outlet 522 of the double-rod air cylinder 523 are connected with the air inlet and the air outlet of the pneumatic slip ring;
furthermore, the honing stone seat 53 adopts a single-side multipoint mechanical clamping type to position the honing stone 54, the honing stone seat 53 is in a strip-shaped groove structure and is installed on two cylinder rods spaced in the vertical direction through the connecting seat 531, eight honing stone seats can be provided in the embodiment, the honing stone 54 is fixedly installed on the outer side of the honing stone seat 53, the cutting included angle between each honing stone 54 and the cylinder wall is 45 degrees, through experiments, the cutting amount is the largest at the moment, the abrasion of the honing stone is small, the obtained surface roughness is in the required range, and the abrasion rate of the honing stone is reduced while the honing efficiency is increased;
further, the honing stone 54 is embedded in the groove of the honing stone seat 53, the lengths of the outer walls of two sides of the groove of the honing stone seat 53 are different, the shorter side provides a contact surface between the honing stone 54 and the inner wall of the cylinder sleeve, the outer eave is lower than the mounted height of the honing stone 54, a screw hole is arranged on the high side to clamp the honing stone 54 through a bolt, and the outer eave is higher than the mounted height of the honing stone; when the working surface of the honing oilstone is worn, the unworn surface of the honing oilstone can be converted into the working surface, so that the service efficiency of the honing oilstone is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, and that the foregoing embodiments and description are merely illustrative of the principles of the invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The maintenance and honing method for the cylinder sleeve of the marine internal combustion engine is characterized by comprising the following steps of:
step 1, setting the inner diameter of a cylinder body on an upper computer; setting the inner diameter of a cylinder, and automatically operating maintenance and honing equipment; every time power is cut off, power is transmitted again, and all the devices must be reset;
step 2, the maintenance and honing equipment runs up and down to reach proper upper stop position and lower stop position; the position of the maintenance and honing equipment is higher than the upper limit position of the required cylinder body;
step 3, the maintenance and honing equipment automatically operates up and down, automatically rotates, longitudinally moves the honing head and rapidly clamps the cylinder body; the honing head inlaid with oilstone is driven to rotate by a vertically arranged main shaft and simultaneously performs vertical reciprocating feeding motion.
In the step 2, the center of the cylinder liner of the internal combustion engine and the axis of the rotating mechanism of the equipment are ensured to be on the same vertical line, and the connecting assembly adopts the cross universal coupling during processing, so that the large angular displacement is realized, the honing head and the inner wall of the cylinder liner are enabled to float relatively, the honing head can be led by taking the inner wall of the cylinder liner of the internal combustion engine as a guide, and therefore, the accurate axis alignment is realized.
2. A marine internal combustion engine cylinder liner repair and honing apparatus operating the marine internal combustion engine cylinder liner repair and honing method of claim 1, comprising: the device comprises a frame, a feeding mechanism, a rotating mechanism, a connecting component and a honing head;
the machine frame is a door-type machine frame, the bottom of the machine frame is placed on the working ground, an upper cross beam is arranged on the upper portion of the machine frame, the feeding mechanism is fixedly installed on the upper cross beam, and the rotating mechanism, the connecting component and the honing head are sequentially installed on the lower portion of the feeding mechanism;
the lower part of the rotating mechanism is provided with the connecting component;
the lower part of the connecting component is provided with the honing head;
the honing head is pneumatically used for enabling honing oilstones to be attached to the inner wall of the cylinder sleeve to achieve maintenance and honing.
3. The marine internal combustion engine cylinder liner maintenance and honing apparatus according to claim 2, characterized in that the feed mechanism comprises: servo motor, speed reducer, chain wheel and transmission chain; the servo motor is provided with the speed reducer, the outside of the speed reducer is provided with the chain wheel, the chain wheel is meshed with the transmission chain, and one end of the transmission chain is fixedly connected with the rotating mechanism.
4. The marine internal combustion engine cylinder liner maintenance and honing equipment of claim 3, wherein the rotating mechanism comprises a motor frame, a motor, a sliding positioning beam, a pneumatic slip ring, and a lifting ring;
the motor is vertically and downwards fixedly arranged inside the motor frame, a hanging ring is arranged at the center of the top of the motor frame and connected with the transmission chain, the motor frame is fixedly arranged in the middle of the sliding positioning beam, an output shaft of the motor penetrates through the pneumatic slip ring, and the connecting assembly is arranged below the output shaft of the motor.
The sliding positioning beam is of a rectangular frame structure, is arranged outside the frame in parallel to the ground, comprises two steel pipes, is provided with baffle plates at two ends, and is provided with idler wheels at four corners in the rectangular frame to be in contact with upright posts at two sides of the frame.
5. The marine engine cylinder liner maintenance and honing device of claim 4, wherein the pneumatic slip ring has a fixed end connected to an air compression device and a rotating portion connected to the honing head.
6. The marine engine cylinder liner maintenance and honing apparatus of claim 4, wherein the connection assembly is comprised of two sets of oldham couplings, the middle being connected by a flange.
7. The marine engine cylinder liner service and honing apparatus of claim 4, wherein the honing head is mounted at a lower portion of the coupling assembly, comprising: the device comprises a body, an expanding mechanism, a honing stone seat and a honing oilstone;
the body is of a cylindrical structure in the middle, four layers of four-corner windmill structures are arranged on the outer side, four layers of the windmill structures are installed in parallel, and the horizontal projection included angle between the two layers is 45 degrees.
8. The marine internal combustion engine cylinder liner maintenance and honing device according to claim 7, wherein the expansion mechanism adopts an air pressure mode, double-rod air cylinders are installed at four corners of each layer, the expansion direction of each double-rod air cylinder and the tangential direction of the honing head rotation direction form an included angle of 45 degrees, and an air inlet hole and an air outlet hole of each double-rod air cylinder are connected with an air inlet hole and an air outlet hole of a pneumatic slip ring.
9. The marine engine cylinder liner maintenance and honing apparatus according to claim 7, characterized in that the honing stone holder is of an elongated groove structure mounted on two vertically spaced cylinder rods by a connecting holder, the honing stone holder being mounted with honing stones each having a cutting angle of 45 ° with respect to the cylinder wall.
10. The maintenance and honing device for cylinder liners of marine internal combustion engines according to claim 9, characterized in that the honing stone is embedded in the groove of the honing stone seat, the outer walls of both sides of the honing stone seat are different in length, the shorter side is in contact with the working surface, and the higher side is provided with a screw hole for clamping the honing stone by bolts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310606680 | 2023-05-26 | ||
| CN2023106066800 | 2023-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116652807A true CN116652807A (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310809348.4A Pending CN116652807A (en) | 2023-05-26 | 2023-07-04 | Method and equipment for repairing and honing cylinder sleeve of marine internal combustion engine |
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| Country | Link |
|---|---|
| CN (1) | CN116652807A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117655905A (en) * | 2024-02-01 | 2024-03-08 | 张家港思高机械有限公司 | Honing machine capable of reducing dust diffusion |
-
2023
- 2023-07-04 CN CN202310809348.4A patent/CN116652807A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117655905A (en) * | 2024-02-01 | 2024-03-08 | 张家港思高机械有限公司 | Honing machine capable of reducing dust diffusion |
| CN117655905B (en) * | 2024-02-01 | 2024-04-16 | 张家港思高机械有限公司 | Honing machine capable of reducing dust diffusion |
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