CN111993120B

CN111993120B - Production equipment for cylinder cover of marine diesel engine

Info

Publication number: CN111993120B
Application number: CN202010804746.3A
Authority: CN
Inventors: 张凯凯; 陈强; 许鹏忠; 沈久花
Original assignee: Anqing CSSC Diesel Engine Co Ltd
Current assignee: Anqing CSSC Diesel Engine Co Ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2022-05-03
Anticipated expiration: 2040-08-12
Also published as: CN111993120A

Abstract

The invention discloses a production device of a marine diesel engine cylinder cover, which comprises a base, wherein a fixing mechanism is arranged on the top surface of the base, a cavity is formed in the base, a supporting mechanism is arranged in the cavity, the supporting mechanism comprises a supporting disk, a linear adjusting disk and a rotary adjusting disk, the bottom surface of the supporting disk is linearly and movably connected with the top surface of the linear adjusting disk, and the bottom surface of the linear adjusting disk is rotatably and movably connected with the top surface of the rotary adjusting disk; the supporting mechanism is connected with a driving mechanism, and the driving mechanism drives the supporting mechanism to move between a first position and a second position. This equipment accessible supporting mechanism jacks up the cylinder cap when using to light, quick realization just only need alone to accomplish the artifical fine setting to the cylinder cap position, and the cylinder cap is fixed again after being in accurate position, has guaranteed that cylinder cap machining precision and once only fix can accomplish the cutting process in pinhole, sand removal hole, the sprayer pipe hole of cylinder cap, labour saving and time saving has promoted machining efficiency by a wide margin.

Description

Production equipment for cylinder cover of marine diesel engine

Technical Field

The invention relates to the technical field of diesel engines, in particular to production equipment for a cylinder cover of a marine diesel engine.

Background

The cylinder cover of the marine diesel engine is arranged on the top of a cylinder sleeve positioned in the cylinder body, forms a combustion chamber together with the cylinder sleeve and a piston, is used for installing exhaust valves, oil injectors, starting valves, safety valves, indicator valves and other components, and is an important structural component of the marine diesel engine. The precision requirement of the cylinder cover of the marine diesel engine is high, the processing technology is complex, and the processing quality directly influences the overall performance and quality of the diesel engine, so that the production and processing of the cylinder cover of the diesel engine are particularly important.

As shown in fig. 1, which is a schematic structural diagram of a cylinder head of a diesel engine, during a manufacturing process, a pin hole 100, a sand cleaning hole 200 and a fuel injector conduit hole 300 of the cylinder head need to be machined, and thus, special positioning equipment is required to fix the cylinder head so as to machine the holes. However, because the weight of the transmitter cylinder cover is large, the manual work is difficult to move, so that the fine adjustment is difficult to carry out when the position of the cylinder cover is not accurately placed, and because the positioning can be carried out only after the position is very accurate, the transmitter cylinder cover can be further smoothly matched with other equipment, thereby ensuring the quality of cutting processing. Therefore, the current positioning device is time-consuming and labor-consuming to use in the actual production process, and the production efficiency is low.

Disclosure of Invention

The invention aims to provide production equipment for a cylinder cover of a marine diesel engine, which solves the problems that the existing positioning equipment wastes time and labor in the actual production process, and the production efficiency is low.

The invention realizes the purpose through the following technical scheme:

the production equipment for the cylinder cover of the marine diesel engine comprises a base, wherein a plurality of fixing mechanisms are installed on the top surface of the base, a cavity with an opening at the top is formed in the base, a supporting mechanism is arranged in the cavity and comprises a supporting plate, a linear adjusting plate and a rotary adjusting plate, the bottom surface of the supporting plate is linearly and movably connected with the top surface of the linear adjusting plate, and the bottom surface of the linear adjusting plate is rotatably and movably connected with the top surface of the rotary adjusting plate;

the supporting mechanism is connected with a driving mechanism, the driving mechanism is used for driving the supporting mechanism to move between a first position and a second position, the first position is that the supporting mechanism extends out of the cavity and the top surface of the supporting disk is higher than the top surface of the base, and the second position is that the supporting mechanism is accommodated in the cavity and the top surface of the supporting disk is lower than the top surface of the base.

In a further improvement, the top surface of the support disk is covered with a friction layer.

The improved structure is characterized in that two protruding strips are arranged on the bottom surface of the supporting disc along the same diameter, a groove is formed in the top surface of the linear adjusting disc along the diameter, a fixing block is arranged in the middle of the groove, two sides of the fixing block are respectively connected with a reset spring, a plurality of idler wheels are further arranged in the groove, the protruding strips are embedded into the groove and are in rolling contact with the idler wheels, and the outer ends of the two reset springs are all abutted to the inner ends of the protruding strips.

The further improvement lies in that the top surface of the linear adjusting disc is also provided with a plurality of rollers respectively at two sides of the groove for directly rolling and contacting with the bottom surface of the supporting disc.

The improved linear regulating disc has concentric ring grooves in the bottom, and the rotating regulating disc has several rollers in the top and embedded into the ring grooves and rolling along the ring grooves.

The improvement is that the number of the concentric ring grooves is two, and the edge of the bottom surface of the linear adjusting disk is provided with a binding edge.

The improved structure of the electric power transmission device is characterized in that the driving mechanism comprises a guide rod, a sleeve plate, a pedal plate, a supporting spring, a moving seat and a reduction gear set, the guide rod is vertically arranged in the cavity, the sleeve plate is movably arranged on the guide rod, the pedal plate is fixedly connected to the side edge of the sleeve plate and extends out of the side edge of the base, a space for the pedal plate to move up and down is reserved on the side edge of the base, the supporting spring is arranged on the guide rod and contacts with the top end of the supporting spring and the bottom end of the sleeve plate, the moving seat is connected to the bottom end of a rotary adjusting disc, the power input end of the reduction gear set is meshed with the side edge of the sleeve plate, and the power output end of the reduction gear set is meshed with the side edge of the moving seat.

The further improvement lies in that the reduction gear set consists of a first gear, a second gear and a third gear, the radiuses of the first gear, the second gear and the third gear are gradually reduced, the first gear, the second gear and the third gear are sequentially meshed and connected, and the reduction gear set is meshed and connected with the side edge of the sleeve plate through the first gear and is meshed and connected with the side edge of the movable seat through the third gear.

In a further improvement, the driving mechanism further comprises an auxiliary gear, the auxiliary gear is meshed with the movable seat, and the connection position is just opposite to the connection position of the reduction gear set on the movable seat.

The further improvement is that when the supporting spring supports the sleeve plate at the highest position of the guide rod, the supporting mechanism is just positioned at the second position; when the pedal drives the sleeve plate to move downwards to the lowest position of the guide rod, the supporting mechanism is just positioned at the first position.

The invention has the beneficial effects that: this equipment accessible supporting mechanism jacks up the cylinder cap when using to light, quick realization just only need alone to accomplish the artifical fine setting to the cylinder cap position, and the cylinder cap is fixed again after being in accurate position, has guaranteed that cylinder cap machining precision and once only fix can accomplish the cutting process in pinhole, sand removal hole, the sprayer pipe hole of cylinder cap, labour saving and time saving has promoted machining efficiency by a wide margin.

Drawings

FIG. 1 is a schematic structural diagram of a cylinder head of a marine diesel engine;

FIG. 2 is a schematic view of the external overall structure of the present invention;

FIG. 3 is a cross-sectional view of the present invention in an initial state;

FIG. 4 is a schematic structural view of the bottom surface of the support plate;

FIG. 5 is a schematic view of the top surface of the linear adjustment disk;

FIG. 6 is a schematic view of the bottom surface of the linear adjustment disk;

FIG. 7 is a schematic view of the top surface of the rotary adjustment disk;

FIG. 8 is a cross-sectional view of the present invention during cylinder head position trimming;

in the figure: 1. a base; 2. a fixing mechanism; 3. a cavity; 4. a support disc; 5. a linear adjustment dial; 6. rotating the adjusting disk; 7. a friction layer; 8. protruding strips; 9. a groove; 10. a fixed block; 11. a return spring; 12. a roller; 13. concentric ring grooves; 14. edge covering; 15. a guide bar; 16. sheathing; 17. a foot pedal; 18. a support spring; 19. a movable seat; 20. a first gear; 21. a second gear; 22. a third gear; 23. an auxiliary gear; 100. a pin hole; 200. cleaning sand holes; 300. a fuel injector conduit bore.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

Referring to fig. 2 to 7, a marine diesel engine cylinder cap production facility, including base 1, base 1 bottom is equipped with the mounting hole, play the fixed action, a plurality of fixed establishment 2 is installed to base 1 top surface, fixed establishment 2 is used for fixing a position the locking to the cylinder cap, its structure can be by the screw rod, the slide bar, compact heap and anticreep cap are constituteed, wherein the vertical movable mounting of screw rod is on base 1, can rotate, and the installation is erect in the slide bar is fixed, it has a screw and a cylinder hole to open on the compact heap, screw rod and screw thread fit, the slide bar passes the cylinder hole, rotate like this the reciprocating of compact heap can be realized to the screw rod, the end of compact heap is equipped with the compression leg, its size matches with four locating holes on the cylinder cap, fixed establishment 2 has four, can insert the location locking that realizes the cylinder cap in four locating holes simultaneously.

In above-mentioned fixed establishment 2, for the convenience of judge whether accurate in cylinder cap position, can establish the laser head in the bottom of compression leg for vertical emission laser beam down, whether all in the locating hole through the point of observing laser irradiation, judge whether accurate in cylinder cap position from this, if accurate then push down the compact heap and fix a position, if inaccurate then need finely tune the cylinder cap position, specific fine setting scheme is referred to below.

In the invention, a cavity 3 with an opening at the top is arranged in a base 1, the opening is preferably circular, a supporting mechanism is arranged in the cavity 3, the supporting mechanism comprises a supporting disk 4, a linear adjusting disk 5 and a rotary adjusting disk 6, a gap of 3-5cm is reserved between the edge of the supporting disk 4 and the wall of the opening, the bottom surface of the supporting disk 4 is linearly and movably connected with the top surface of the linear adjusting disk 5, namely, the supporting disk 4 can linearly move on the top surface of the linear adjusting disk 5, the bottom surface of the linear adjusting disk 5 is rotatably and movably connected with the top surface of the rotary adjusting disk 6, namely, the linear adjusting disk 5 can rotatably and movably arranged on the top surface of the rotary adjusting disk 6; in addition, the supporting mechanism is connected with a driving mechanism, the driving mechanism is used for driving the supporting mechanism to move between a first position and a second position, the first position is that the supporting mechanism extends out of the cavity 3 and the top surface of the supporting disk 4 is higher than the top surface of the base 1, and the second position is that the supporting mechanism is accommodated in the cavity 3 and the top surface of the supporting disk 4 is lower than the top surface of the base 1. When not needing to fine setting the cylinder cap position, supporting mechanism is located the second position, supports the cylinder cap through the cylinder cap top surface, can provide stable location effect like this, when needs carry out the cylinder cap fine setting, and supporting mechanism is located the primary importance, and the supporting disk then plays the effect of supporting the cylinder cap, can directly move the cylinder cap this moment, carries out the fine setting of position, angle.

In the invention, the top surface of the supporting disk 4 is covered with the friction layer 7, and the friction layer 7 can be made of wear-resistant rubber materials and is used for increasing friction force and avoiding the surface of a cylinder cover from being worn.

According to the invention, two protruding strips 8 are arranged on the bottom surface of the supporting disk 4 along the same diameter, the two protruding strips 8 are mutually symmetrical and are spaced at a certain distance, a groove 9 is formed in the top surface of the linear adjusting disk 5 along the diameter, the width of the groove 9 is matched with that of the protruding strips 8, a fixed block 10 is arranged in the middle of the groove 9, two sides of the fixed block 10 are respectively connected with a return spring 11, a plurality of rollers 12 are further arranged in the groove 9, the rolling direction of the rollers 12 is consistent with that of the groove 9, the protruding strips 8 are embedded in the groove 9 and are in rolling contact with the rollers 12, and the outer ends of the two return springs 11 are respectively abutted against the inner ends of the protruding strips 8. When the support disk 4 is pushed in a specific direction (in line with the direction of the groove 9, for the sake of convenience of orientation, it can be marked on the surface of the support disk 4), the support disk 4 will translate relative to the linear adjustment disk 5, the two return springs 11 will be compressed one and extended the other, and when the pushing force is removed, will return to the intermediate initial position under the action of the return springs 11. The stiffness coefficient of the return spring 11 is not too large, and the requirement that the support disk 4 can be pushed to reset is met.

Particularly, the top surface of the linear adjusting disk 5 is also provided with a plurality of rollers 12 on two sides of the groove 9 respectively, the rollers 12 are used for directly rolling and contacting with the bottom surface of the supporting disk 4, and the rollers 12 in the groove 9 are not in the same straight line and are matched together to play a role of stable support.

In the invention, the bottom surface of the linear adjusting disk 5 is provided with two concentric ring grooves 13, the edge of the bottom surface of the linear adjusting disk 5 is provided with a covered edge 14, the covered edge 14 is wrapped on the side edge of the top end of the rotary adjusting disk 6, the top surface of the rotary adjusting disk 6 is provided with a plurality of rollers 12 along the circumferential direction, and the rollers 12 are just embedded into the concentric ring grooves 13 and roll along the concentric ring grooves 13. When the supporting disc 4 is rotated, the supporting disc 4 can drive the linear adjusting disc 5 to synchronously rotate, namely the linear adjusting disc 5 rotates relative to the rotary adjusting disc 6, and in the rotating process, the roller 12 rolls along the concentric ring groove 13.

It should be noted that, the rollers 12 disposed at the above positions replace sliding friction by rolling friction, so as to reduce friction, and the adjustment process is more labor-saving.

In the invention, the driving mechanism adopts a manual driving mode, so that the cost can be saved, the adjusting process is more visual, convenient and humanized, and the driving mechanism can also be driven by electric power, such as an electric telescopic rod directly controlled by a controller.

This embodiment details one way of manual actuation: the driving mechanism comprises guide rods 15, a sleeve plate 16, pedal plates 17, supporting springs 18, a moving seat 19 and a reduction gear set, the number of the guide rods 15 can be two, the guide rods 15 are vertically arranged in the cavity 3, the sleeve plate 16 is movably arranged on the guide rods 15, the sleeve plate 16 can move up and down along the guide rods 15, the pedal plates 17 are fixedly connected to the side edges of the sleeve plate 16, the pedal plates 17 horizontally extend out of the side edges of the base 1, space for the pedal plates 17 to move up and down is reserved on the side edges of the base 1, the supporting springs 18 are arranged on the guide rods 15, the top ends of the supporting springs 18 are in contact with the bottom ends of the sleeve plate 16, the moving seat 19 is connected to the bottom end of the rotary adjusting disc 6, racks are arranged on the side edges of the moving seat 19 and the sleeve plate 16, the power input end of the reduction gear set is in meshed connection with the side edges of the sleeve plate 16, and the power output end of the reduction gear set is in meshed connection with the side edges of the moving seat 19. Specifically, the reduction gear set is composed of a first gear 20, a second gear 21 and a third gear 22 with gradually reduced radius, the first gear 20, the second gear 21 and the third gear 22 are sequentially meshed and connected, and the reduction gear set is meshed and connected with the side edge of the sleeve plate 16 through the first gear 20 and meshed and connected with the side edge of the movable seat 19 through the third gear 22.

It should be noted that the reduction ratio of the reduction gear is selected such that when the support spring 18 supports the strap 16 at the highest position of the guide bar 15, the support mechanism is located at the second position; when the pedal 17 drives the sleeve plate 16 to move downwards to the lowest position of the guide rod 15, the supporting mechanism is just positioned at the first position.

Further, the driving mechanism further comprises an auxiliary gear 23, wherein the auxiliary gear 23 is in meshed connection with the movable base 19, and the connection position is just opposite to the connection position of the reduction gear set on the movable base 19. The auxiliary gear 23 can serve to increase the movement stability of the movable base 19.

Referring to fig. 8 again, the working principle of the present invention is:

the cylinder cover is conveyed to the top surface of the base 1 through the lifting equipment, the supporting mechanism is located at the second position, the cylinder cover is directly contacted with the top surface of the base 1, and the cylinder cover is difficult to move. Only after the position is accurate, the cutting machine can be smoothly matched with other equipment, and the quality of cutting processing is ensured.

And opening a laser head at the bottom of the compression leg before fine adjustment, and comparing and fine adjusting by observing the position irradiated by the laser. During fine adjustment, only a foot is needed to pedal the pedal 17, the pedal 17 can drive the sleeve plate 16 to move downwards to the bottommost end along the guide rod 15, the supporting spring 18 is compressed, the sleeve plate 16 can drive the first gear 20, the second gear 21 and the third gear 22 to rotate in sequence, the reduction gear set finally drives the moving seat 19 to move upwards, and the reduction gear set plays a role in saving labor, controlling and reducing displacement, so that the force of feet can completely support a cylinder cover; remove 19 backs that rise of seat, drive the whole first position that rises of supporting mechanism, prop up the cylinder cap, the cylinder cap breaks away from 1 top surface of base, compares the fine setting according to the position that laser shines this moment, and concrete fine setting mode is:

firstly, the cylinder cover is rotated to enable the support plate 4 and the linear adjusting plate 5 to synchronously rotate, so that the cylinder cover and the support plate 4 can linearly move towards the direction of the designated position (the direction of the groove 9 is consistent with the direction of the designated position), then the cylinder cover is pushed to enable the cylinder cover and the support plate 4 to move towards the direction of the designated position, after the cylinder cover and the support plate 4 move to the designated position, the pedal plate 17 is released, under the action of the support spring 18, the sleeve plate 16 is positioned at the highest position of the guide rod 15, at the moment, the support mechanism returns to the second position, the cylinder cover is supported by the top surface of the base 1 again, after the support plate 4 is separated from the cylinder cover, the central initial position can be automatically restored under the action of the return spring 11, then the pedal plate 17 is stepped again, so that the support plate 4 supports the cylinder cover again (at the moment, the support position is changed, and the size of the cylinder cover is large, and the support plate has enough support area, so that the cylinder cover cannot be turned on one side due to small change of the support position), at the moment, the cylinder cover is rotated to enable laser to irradiate into each positioning hole, fine adjustment can be carried out again if the laser cannot be carried out, after the fine adjustment process is finished, the position and the angle of the fine adjustment process are appropriate, the pressing block is pressed down to complete positioning work, and then cutting machining of the cylinder cover pin hole 100, the sand cleaning hole 200 and the fuel injector guide pipe hole 300 can be carried out.

In the process, if a special situation with large position deviation occurs, the relative displacement of the support plate 4 relative to the linear adjusting plate 5 is limited, and the specific position cannot be reached by one-time pushing, so that the cylinder cover can be continuously pushed only when the support plate 4 supports the cylinder cover again, and the process is repeated until the specific position is reached and the final angle adjustment is performed.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention.

Claims

1. The utility model provides a marine diesel cylinder cap production facility, includes base (1), a plurality of fixed establishment (2), its characterized in that are installed to base (1) top surface: a cavity (3) with an opening at the top is formed in the base (1), a supporting mechanism is arranged in the cavity (3), the supporting mechanism comprises a supporting disk (4), a linear adjusting disk (5) and a rotary adjusting disk (6), the bottom surface of the supporting disk (4) is linearly and movably connected with the top surface of the linear adjusting disk (5), and the bottom surface of the linear adjusting disk (5) is rotatably and movably connected with the top surface of the rotary adjusting disk (6);

the bottom surface of the supporting disk (4) is provided with two protruding strips (8) along the same diameter, the top surface of the linear adjusting disk (5) is provided with a groove (9) along the diameter, a fixing block (10) is arranged in the middle of the groove (9), two sides of the fixing block (10) are respectively connected with a reset spring (11), a plurality of idler wheels (12) are further arranged in the groove (9), the protruding strips (8) are embedded into the groove (9) and are in rolling contact with the idler wheels (12), the outer end heads of the two reset springs (11) are abutted against the inner end heads of the protruding strips (8), the bottom surface of the linear adjusting disk (5) is provided with a concentric ring groove (13), the top surface of the rotary adjusting disk (6) is provided with a plurality of idler wheels (12) along the circumferential direction, and the idler wheels (12) are just embedded into the concentric ring groove (13) and roll along the concentric ring groove (13);

the supporting mechanism is connected with a driving mechanism, the driving mechanism is used for driving the supporting mechanism to move between a first position and a second position, the first position is that the supporting mechanism extends out of the cavity (3) and the top surface of the supporting plate (4) is higher than the top surface of the base (1), and the second position is that the supporting mechanism is accommodated in the cavity (3) and the top surface of the supporting plate (4) is lower than the top surface of the base (1).

2. The production equipment of the cylinder cover of the marine diesel engine according to claim 1, characterized in that: the top surface of the support disc (4) is covered with a friction layer (7).

3. The production equipment of the cylinder cover of the marine diesel engine according to claim 1, characterized in that: the top surface of the linear adjusting disc (5) is also provided with a plurality of rollers (12) on two sides of the groove (9) respectively, and the rollers are used for directly rolling and contacting with the bottom surface of the supporting disc (4).

4. The production equipment of the cylinder cover of the marine diesel engine according to claim 1, characterized in that: the number of the concentric ring grooves (13) is two, and a covered edge (14) is formed on the edge of the bottom surface of the linear adjusting disc (5).

5. The production equipment of the cylinder cover of the marine diesel engine according to claim 1, characterized in that: the driving mechanism comprises a guide rod (15), a sleeve plate (16), a pedal plate (17), a supporting spring (18), a moving seat (19) and a reduction gear set, the guide rod (15) is vertically arranged in the cavity (3), the sleeve plate (16) is movably arranged on the guide rod (15), the pedal (17) is fixedly connected to the side edge of the sleeve plate (16), the pedal (17) extends out from the side of the base (1), a space for the pedal (17) to move up and down is reserved on the side of the base (1), the supporting spring (18) is arranged on the guide rod (15), the top end of the supporting spring (18) is contacted with the bottom end of the sleeve plate (16), the movable seat (19) is connected to the bottom end of the rotary adjusting disc (6), the power input end of the reduction gear set is meshed with the side edge of the sleeve plate (16), and the power output end of the reduction gear set is meshed with the side edge of the movable seat (19).

6. The production equipment of the cylinder cover of the marine diesel engine according to claim 5, characterized in that: the speed reduction gear set is composed of a first gear (20), a second gear (21) and a third gear (22) with the radius gradually reduced, the first gear (20), the second gear (21) and the third gear (22) are sequentially meshed and connected, and the speed reduction gear set is meshed and connected with the side edge of the sleeve plate (16) through the first gear (20) and meshed and connected with the side edge of the movable seat (19) through the third gear (22).

7. The production equipment of the cylinder cover of the marine diesel engine according to claim 5, characterized in that: the driving mechanism further comprises an auxiliary gear (23), wherein the auxiliary gear (23) is in meshed connection with the movable seat (19), and the connection position of the auxiliary gear is just opposite to the connection position of the reduction gear set on the movable seat (19).

8. The production equipment of the cylinder cover of the marine diesel engine according to claim 5, characterized in that: when the support spring (18) supports the sleeve plate (16) to be positioned at the highest position of the guide rod (15), the support mechanism is just positioned at the second position; when the pedal (17) drives the sleeve plate (16) to move downwards to the lowest position of the guide rod (15), the supporting mechanism is just positioned at the first position.