CN220533881U - Portable honing machine for cylinder sleeve of marine internal combustion engine - Google Patents

Abstract

The utility model relates to a portable honing machine for cylinder liners of marine internal combustion engines, which comprises the following components: 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 honing. When the honing tool works, honing of reticulate patterns on the inner wall of the cylinder liner of the marine internal combustion engine can be realized by only setting the feeding speed, the acceleration and the feeding distance of the feeding mechanism, the rotating speed of the rotating mechanism, the air pressure value of the expanding mechanism, the expanding radius and the material parameters of the honing oilstone. The utility model is applicable to a larger processing range, self-adaptive alignment, simpler structure compared with the traditional honing machine tool, easy manufacture, easy disassembly and assembly in modular design and high maintenance.

Description

Portable honing machine for cylinder sleeve of marine internal combustion engine

Technical Field

The utility model relates to polishing equipment, in particular to a portable honing machine for cylinder liners of marine internal combustion engines.

Background

The cylinder sleeve of the internal combustion engine is an important part of the internal combustion engine, and the honing reticulate pattern quality of the inner wall directly influences the power of the engine, the consumption level of engine oil and the emission index. The diameter of the cylinder sleeve of the marine internal combustion engine is often larger, scratches and mechanical damage can occur on the inner wall after long-time use, the efficiency of the internal combustion engine is greatly reduced, and the cylinder sleeve needs to be maintained and repaired at the moment.

The traditional honing machine tool for the cylinder sleeve of the marine internal combustion engine has the advantages of large volume, high control precision, high cost, high requirements on sites and supporting facilities, small application range and difficulty in meeting the requirements of the ship on the working environment, so that the honing machine tool is very uneconomical to be used for maintaining and repairing the cylinder sleeve of the marine internal combustion engine.

In view of the limitations of ships and marine complex environments, maintenance and repair of marine engine cylinder liners cannot be directly performed by using a large honing machine, and thus are usually performed by using a manual repair method. The manual maintenance mode can repair the surface pull marks, air holes, shrinkage cavities, sand holes, corrosion pits and mechanical damage of the inner hole, so that the diameter increment, roundness and cylindricity of the inner hole meet the requirements, and the defect that honing reticulate patterns cannot be repaired to improve the service efficiency of the internal combustion engine is overcome.

Therefore, it is necessary to invent honing equipment suitable for the cylinder sleeve of the marine internal combustion engine, so as to repair honing reticulate patterns while meeting the requirements of diameter increment, roundness and cylindricity of an inner hole of the cylinder sleeve, improve the maintenance quality and realize the purposes of improving the service efficiency of the internal combustion engine and reducing the oil consumption.

Disclosure of Invention

In order to achieve the above purpose, the utility model provides a portable honing machine for cylinder jackets of marine internal combustion engines, which is characterized by comprising 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, the upper part of the machine frame is provided with an upper cross beam, the feeding mechanism is fixedly installed in parallel, and the lower part of the feeding mechanism is sequentially provided with the rotating mechanism, the connecting component and the honing head.

The lower part of the rotating mechanism is provided with the connecting component;

the honing head is arranged at the lower part of the connecting component, and honing oilstone of the honing head is stuck on the inner wall of the cylinder sleeve in a pneumatic mode to realize honing.

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.

Further, the servo motor, the speed reducer and the chain wheel are coaxially arranged.

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;

furthermore, the sliding positioning beam is of a rectangular frame structure, is arranged outside the frame in parallel to the ground, 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;

furthermore, the pneumatic slip ring, the fixed end is connected with an air compression device, and the rotating part is connected with 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 arranged at the lower part of the connecting component and comprises a body, an expanding mechanism, a honing stone seat and a honing oilstone; the middle of the body is of a cylindrical structure, the outer side of the body is of a four-layer four-corner windmill structure, four layers of the bodies are arranged in parallel, and a projection included angle between the 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 included angle between the expanding direction of the double-rod air cylinder and the tangential direction of the rotating direction of the honing head is 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.

Working principle and using flow:

when the internal combustion engine cylinder sleeve to be processed is used, the internal combustion engine cylinder sleeve to be processed is fixed below the honing machine, the center of the internal combustion engine cylinder sleeve and the axis of the rotating mechanism are ensured to be on the same vertical line, and preliminary alignment is carried out; and setting the feeding speed, the acceleration and the feeding distance of the feeding mechanism according to the material of the cylinder sleeve of the internal combustion engine and the design parameters of the honing reticulate pattern, and setting the rotating speed of the rotating mechanism, the air pressure value of the expanding mechanism, the expanding radius and the material parameters of the honing oilstone. During processing, the connecting assembly adopts the cross universal coupling, so that the connecting assembly has larger angular displacement, the honing head and the inner wall of the cylinder sleeve are relatively floated, and the honing head can guide by the inner wall of the cylinder sleeve of the internal combustion engine, thereby realizing relatively accurate axis alignment. The honing head rotates and reciprocates in the cylinder sleeve under the action of the feeding mechanism and the reciprocating mechanism, 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 cuts, the contact area between the inner wall of the cylinder sleeve and the oilstone surface is continuously increased along with the honing, 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 honing of reticulate patterns of the inner wall of the cylinder sleeve is completed.

The beneficial effects of the utility model are mainly as follows: the traditional honing machine tool has large volume, high control precision, high cost, high requirements on sites and supporting facilities, small application range, is not economical enough when being used for maintaining and repairing the cylinder sleeve of the marine internal combustion engine, and the ship cannot meet the requirements on the working environment; meanwhile, the traditional manual repair method has large error and long time consumption, and can not finish repair and put into use in time in face of changeable sea conditions. Compared with the traditional method, the utility model has 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 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 a portable marine engine cylinder liner honing machine application of the present utility model; a is a cylinder liner of an internal combustion engine;

FIG. 2 is a block diagram of a portable marine engine cylinder liner honing machine according to the utility model;

FIG. 3 is a schematic view of a rotary mechanism according to the present utility model;

FIG. 4 is a schematic view of a connecting assembly according to the present utility model;

FIG. 5 is a schematic view showing the overall structure of the honing head of the present utility model;

FIG. 6 is a top view of the honing head of this utility model;

FIG. 7 is a schematic view of the feed mechanism of the present utility model;

figure 8 is an enlarged view of the honing stone seat of the utility model.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and the specific embodiments, as shown in fig. 1 to 2, a portable honing machine for cylinder liners of marine internal combustion engines, comprising a frame 1, a feeding mechanism 2, a rotating mechanism 3, a connecting assembly 4, and a honing head 5.

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 feeding mechanism 2 enables the honing head to do reciprocating motion in the vertical direction;

the rotating mechanism 3 is arranged at the lower part of the feeding mechanism 2, and the rotating mechanism 3 rotates the honing head;

the lower part of the rotating mechanism 3 is provided with the connecting component 4;

the honing head 5 is arranged at the lower part of the connecting component 4, and honing oil stones of the honing head are stuck on the inner wall of the cylinder sleeve in a pneumatic mode to realize honing.

The feed mechanism 2 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 kept, the flexible transmission chain can reduce occupation of upper space of the honing machine while meeting the feeding distance, and the honing machine has remarkable advantages when being used for honing of 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, and provides rotating power for the honing head 5 so as to ensure that the honing head can rotate in one direction;

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.

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 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 honing head 5 is mounted at the lower portion of the connecting assembly 4 as shown in fig. 3 to 4, and includes a body 51, a 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 arranged at four corners of each layer, the 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, so that the honing stone seat is more stable;

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;

the honing stone seat 53 adopts a single-side multipoint mechanical clamping mode to position the honing stone 54, the honing stone seat 53 is of a strip-shaped groove structure and is arranged 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 arranged 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 also 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.

While the preferred embodiments of the present utility model have been illustrated and described, the present utility model is not limited to the embodiments described above, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present utility model, and these are intended to be included in the scope of the present utility model as defined in the appended claims.

Claims (10)

1. Portable marine internal-combustion engine cylinder jacket honing machine, its characterized in that 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 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 adopts pneumatic mode to enable honing oilstone to be attached to the inner wall of the cylinder sleeve to achieve honing.

2. The portable marine internal combustion engine cylinder liner honing machine according to claim 1, 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.

3. The portable marine internal combustion engine cylinder liner honing machine of claim 2, 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.

4. The portable marine internal combustion engine cylinder liner honing machine according to claim 3, characterized in that the sliding positioning beam is of a rectangular frame structure, is installed on the outer side of the frame parallel to the ground, comprises two steel pipes, two ends of the steel pipes are provided with baffle plates, and idler wheels are installed at four corners in the rectangular frame and are in contact with upright posts on two sides of the frame.

5. The portable marine engine cylinder liner honing machine of claim 3, wherein the pneumatic slip ring is attached at a fixed end to an air compression device and a rotating portion is attached to the honing head.

6. The portable marine engine cylinder liner honing machine of claim 3, wherein the connecting assembly is comprised of two sets of oldham couplings, with the middle being connected by a flange.

7. The portable marine engine cylinder liner honing machine according to claim 3, characterized in that the honing head is mounted at a lower portion of a 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 portable honing machine for cylinder liners of marine internal combustion engines according to claim 7, characterized in that the expanding mechanism adopts an air pressure mode, double-rod air cylinders are installed at four corners of each layer, the included angle between the expanding direction of each double-rod air cylinder and the tangential direction of the rotating direction of the honing head is 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 portable marine engine cylinder liner honing machine according to claim 7, characterized in that the honing stone seat is of an elongated groove structure mounted on two vertically spaced cylinder rods by a connecting seat, the honing stone seat is mounted with honing stones each having a cutting angle of 45 ° with the cylinder wall.

10. The portable marine internal combustion engine cylinder liner honing machine according to claim 9, wherein the honing stone is embedded in the groove of the honing stone seat, the outer walls of the honing stone seat are different in length, the shorter honing stone is in contact with the working surface, and the screw hole is formed in the higher side to clamp the honing stone through the screw bolt.