An assembly platform for a marine diesel engine base

Abstract

The present invention belongs to the technical field of assembly platforms, and specifically relates to an assembly platform for a marine diesel engine base. By setting a positioning mechanism, the base of the diesel engine can be effectively positioned and supported when the marine diesel engine is assembled, and convenient and flexible adjustments can be made according to different bases, so as to meet the assembly needs of diesel engines of different sizes and models; at the same time, during and after the diesel engine assembly process, the lifting device can be controlled to make it easier to hook and connect subsequent lifting ropes; and in order to further improve the stability of the connection, the connection hole of the base can be adapted through an adapter during the assembly process to avoid displacement during the assembly process.

Description

Technical Field

[0001] The invention belongs to the technical field of assembly platforms, and in particular relates to an assembly platform for a marine diesel engine base. Background Art

[0002] With the development of science and technology, the size and power sources of ships are constantly changing, gradually evolving from small boats that use natural wind to large ships that use fossil fuels. The use of diesel engines as power engines has become one of the main power means for modern large ships. Compared with general vehicle diesel engines, marine diesel engines are larger in size in order to provide more powerful power. For the convenience of production, they are often assembled at the ship production site after the production of various components is completed.

[0003] At present, in order to facilitate the convenience and stability of diesel engine assembly, a special assembly platform is often set up for assembly processing. The traditional one is generally a platform. The diesel engine is fixed by bolts or clamps during assembly. This method is not only inconvenient to operate, but also because the marine diesel engine is large in size, it is difficult to perform hoisting operations through external hoisting mechanisms after the outer side is assembled in the later stage through this method, and it is easy to cause inconvenience in assembling hoisting hooks and ropes. In addition, for the general platform, it is also inconvenient to operate in the fixing preparation link for assembling diesel engines of different sizes and models. It is difficult to quickly and conveniently fix and adjust the position of the engine base, and it cannot meet the needs of production assembly. Summary of the invention

[0004] The purpose of the present invention is to provide an assembly platform for a marine diesel engine base, so as to solve the problems mentioned in the background technology.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0006] An assembly platform for a marine diesel engine base comprises a platform and a control panel, wherein a positioning mechanism and a lifting mechanism are provided on the upper end of the platform;

[0007] The positioning mechanism is composed of two adjustment components and four connection components, the two adjustment components are arranged at the upper end of the platform, and the four connection components are connected to the two adjustment components;

[0008] The adjusting assembly includes a bidirectional screw, a stabilizing slide bar, a motor and two supports, the bidirectional screw and the stabilizing slide bar are parallelly distributed on opposite sides of the platform, the bidirectional screw is rotatably connected to the platform through a base, the stabilizing slide bar is fixedly connected to the platform through the base, the motor is fixedly connected to the platform and is transmission-connected to the bidirectional screw, the two supports are symmetrically arranged between the bidirectional screw and the stabilizing slide bar, and the four connecting assemblies are respectively arranged at the intersection points of the four supports;

[0009] The lifting mechanism comprises a base plate and a plurality of lifters, wherein the base plate is connected to the lower side of the platform, and the plurality of lifters are evenly arranged on the upper end of the base plate.

[0010] The support device includes two support blocks and a guide rod. The threaded sections on both sides of the bidirectional screw have opposite rotation directions. The two support blocks are respectively connected to the threaded sections on one side of the bidirectional screw and the stabilizing slide rod of the same adjusting component. The guide rod is fixed between the two support blocks, and the two adjusting components are overlapped up and down.

[0011] The connecting assembly comprises a connecting column and a positioning column. The connecting column is slidably connected to the two guide rods whose projections intersect, and the positioning column is fixedly arranged on the upper end of the connecting column.

[0012] The positioning column is also provided with an adapter, which includes an oil pump, an oil storage tank and an expansion piece. The oil pump and the oil storage tank are both embedded in the connecting column. The number of the expansion pieces is at least two and they are arranged on the positioning column.

[0013] The expansion piece includes an arc-shaped plate and two groups of telescopic rods, the telescopic rod includes a connecting rod, a first piston block and a first spring, a receiving groove is opened on the side of the positioning column, a vertical cavity is opened in the middle of the positioning column, and an active cavity is opened between the receiving groove and the vertical cavity, one end of the connecting rod is connected to the arc-shaped plate and slides into the active cavity, the first piston block is connected to the other end of the connecting rod and is slidably and sealedly connected to the active cavity, the first spring is sleeved on the connecting rod and is located in the active cavity, and the vertical cavity is connected to the oil pump; in this way, when assembling the diesel engine, the connection and stability of the engine bases of different specifications and models can be further carried out.

[0014] The lifter includes a sealing tank, a second piston block, a lifting rod, a force plate and a second spring. The sealing tank is fixedly connected to the bottom plate, the second piston block is slidingly sealed in the sealing tank, the lifting rod is fixedly arranged at the upper end of the second piston block and extends out of the sealing tank, the force plate is connected to the other end of the lifting rod, the second spring is sleeved on the lifting rod and is located in the sealing tank, and a driving member matching the lifter is provided at the lower end of the bottom plate; in this way, the lifting operation can be conveniently and stably performed through the pumping of hydraulic oil, which is quick and stable.

[0015] The driving member includes a main liquid pipe and a plurality of liquid distribution pipes, the main liquid pipe is connected to the plurality of liquid distribution pipes, the main liquid pipe is connected to an external liquid supply mechanism, and the plurality of liquid distribution pipes are connected to the lower ends of the plurality of sealed tanks in a one-to-one correspondence.

[0016] A cross support frame is provided in the middle of the platform, and a load block is provided in the middle of each of the four guide rods. The guide rods are slidably connected to the side surfaces of the cross support frame perpendicular to the plane projection through the load blocks; this can improve the stability of the support.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] By setting the positioning mechanism, when assembling the marine diesel engine, the engine base can be effectively positioned and supported, and convenient and flexible adjustments can be made according to different engine bases to meet the assembly needs of diesel engines of different sizes and models; at the same time, during and after the diesel engine assembly process, the lifting device can also be controlled to facilitate the subsequent hooking and connection of the lifting rope; and in order to further improve the stability of the connection, the connection holes of the engine base can also be adapted through an adapter during the assembly process to avoid displacement during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

[0020] Figure 1 The present invention is a structural schematic diagram of an assembly platform for a marine diesel engine base.

[0021] Figure 2 It is a schematic diagram of the bottom structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of the present invention after removing the lifting mechanism.

[0023] Figure 4 It is a schematic diagram of the structure of the adapter of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the lifter of the present invention.

[0025] The stand 1, the base plate 11, the bidirectional screw 2, the stabilizing slide bar 21, the motor 22, the support block 23, the guide rod 24, the connecting column 3, the positioning column 31, the arc plate 32, the connecting rod 33, the first piston block 34, the first spring 35, the receiving groove 36, the vertical cavity 37, the movable cavity 38, the sealing tank 4, the second piston block 41, the lifting rod 42, the force plate 43, the second spring 44, the main liquid pipe 45, the liquid distribution pipe 46, the cross support frame 5, and the load-bearing block 51. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Embodiment 1:

[0028] like Figure 1-3 as well as Figure 5 As shown, an assembly platform for a marine diesel engine base includes a stand 1 and a control panel, and a positioning mechanism and a lifting mechanism are provided at the upper end of the stand 1;

[0029] The positioning mechanism is composed of two adjustment components and four connection components. The two adjustment components are arranged at the upper end of the stand 1, and the four connection components are connected to the two adjustment components.

[0030] The adjustment component includes a bidirectional screw 2, a stabilizing slide bar 21, a motor 22 and two supports. The bidirectional screw 2 and the stabilizing slide bar 21 are parallelly distributed on opposite sides of the platform 1. The bidirectional screw 2 is rotatably connected to the platform 1 through a base, the stabilizing slide bar 21 is fixedly connected to the platform 1 through a base, the motor 22 is fixedly connected to the platform 1 and is transmission-connected to the bidirectional screw 2. The two supports are symmetrically arranged between the bidirectional screw 2 and the stabilizing slide bar 21, and the four connecting components are respectively arranged at the intersection points of the four supports;

[0031] The lifting mechanism includes a base plate 11 and a plurality of lifters. The base plate 11 is connected to the lower side of the platform 1 , and the plurality of lifters are evenly arranged on the upper end of the base plate 11 .

[0032] Before assembling a marine diesel engine, first adjust the position state of the positioning mechanism according to the size specifications of the target assembly base to match it and ensure a stable state during assembly. When adjusting the positioning mechanism, control the forward and reverse rotation of the motor 22 in the two adjustment components through the control panel and according to the size of the assembly base. When the motor 22 starts to rotate forward, since the motor 22 is connected to the bidirectional screw 2 in a transmission manner, and the threads on both sides of the bidirectional screw 2 have opposite rotation directions, in cooperation with the limiting effect of the stand 1, the supports connected to the threaded sections on both sides of the bidirectional screw 2 will move closer or farther away from each other according to the rotation direction. Since the two adjustment components are overlapped and distributed at intervals up and down, and the bidirectional screw 2 and the stabilizing slide bar 21 of the same group are distributed in parallel, the two supports of the same group are also parallel to each other, and the four supports in the two adjustment components will be perpendicular to each other to form four intersections, wherein the connecting component is arranged at the intersection and is slidably connected to the support, so that when the position of the support is adjusted by the adjusting component, the connecting component can be flexibly moved and adjusted in the corresponding area, thereby meeting the connection needs of assembly bases of different sizes and specifications;

[0033] When the connection base is stably connected to the stand 1 through the connection component, the connection stability of the assembly base can be further improved through the lifting mechanism. This can expand the supporting area of ​​the assembly base, which is beneficial for the subsequent installation of the diesel engine on the assembly base. The weight of the entire mechanism increases but still maintains good stability. At the same time, since the size of the marine diesel engine is larger than that of a general automobile diesel engine, it is often necessary to lift it through external equipment after installation. In order to facilitate lifting and avoid platform obstruction, the lifter can be closed at this time and ropes or hooks can be connected, which is more conducive to subsequent lifting needs after the installation is completed.

[0034] The support device includes two support blocks 23 and a guide rod 24. The threaded sections on both sides of the bidirectional screw 2 have opposite rotation directions. The two support blocks 23 are respectively connected to the threaded sections on one side of the bidirectional screw 2 and the stabilizing slide bar 21 of the same adjusting component. The guide rod 24 is fixed between the two support blocks 23, and the two adjusting components are overlapped up and down; the support block 23 plays a connecting role with the bidirectional screw 2 or the stabilizing slide bar 21. When the support block 23 is driven by the bidirectional screw 2, the corresponding support block 23 will move first and drive the guide rod 24 to move, and the other support block 23 can cooperate with the stabilizing slide bar 21 to play a further supporting and guiding effect, which is beneficial to subsequent adjustment and supporting effects.

[0035] The connecting component includes a connecting column 3 and a positioning column 31. The connecting column 3 is slidably connected to the two guide rods 24 whose projections intersect, and the positioning column 31 is fixedly arranged on the upper end of the connecting column 3; the connecting column 3 plays the effect of connecting with the guide rods 24. Since the two adjustment components are overlapped and distributed up and down, and the two guide rods 24 forming the intersection must be vertical, the connecting column 3 and the two guide rods 24 are also cross-slidably connected. In this way, when one of the guide rods 24 moves along the axial direction of the corresponding bidirectional screw 2, it will also drive the connecting column 3 to move synchronously, but will not conflict with the other guide rod 24. Therefore, the position of the positioning column 31 can be flexibly adjusted while ensuring the stable movement of the components.

[0036] A cross support frame 5 is provided in the middle of the platform 1, and a load block 51 is provided in the middle of each of the four guide rods 24. The guide rods 24 are slidably connected to the side surfaces of the cross support frame 5 which are perpendicular to the plane projection through the load blocks 51; the cross support frame 5 cooperates with the load blocks 51 to provide the guide rods 24 with better stable guiding and auxiliary support effects.

[0037] The lifter includes a sealing tank 4, a second piston block 41, a lifting rod 42, a force plate 43 and a second spring 44. The sealing tank 4 is fixedly connected to the bottom plate 11. The second piston block 41 is slidingly sealed in the sealing tank 4. The lifting rod 42 is fixedly arranged at the upper end of the second piston block 41 and extends out of the sealing tank 4. The force plate 43 is connected to the other end of the lifting rod 42. The second spring 44 is sleeved on the lifting rod 42 and is located in the sealing tank 4. A driving member matching the lifter is provided at the lower end of the bottom plate 11; the driving member includes a main liquid pipe 45 and a plurality of liquid distribution pipes 46. The main liquid pipe 45 is connected to the plurality of liquid distribution pipes 46, and the main liquid pipe 45 is connected to the external liquid supply mechanism. The plurality of liquid distribution pipes 46 are connected to the lower ends of the plurality of sealing tanks 4 in a one-to-one correspondence.

[0038] When the assembly base is assembled, the hydraulic oil can be pumped into the main liquid pipe 45 through the external liquid supply mechanism, and the main liquid pipe 45 pumps the hydraulic oil into a plurality of liquid distribution pipes 46. At this time, the liquid distribution pipes 46 will press the hydraulic oil into the sealing tank 4, thereby pushing the second piston block 41 to move upward and drive the lifting rod 42 to extend out of the sealing tank 4, so that the force plate 43 moves upward to abut against the upper assembly base, which can increase the support area of ​​the assembly base, improve stability and reduce the load-bearing burden of the adjustment component;

[0039] The lifter blocked by the support cannot be fully extended, which can also avoid obstruction between components. In order to further reduce the wear and damage caused by the abutment between components, a solenoid valve can be added between the liquid distribution tube 46 and the sealing tank 4. In this way, the on and off of the solenoid valve can be controlled by the control panel. According to the specific distribution position of the support, the corresponding lifter can be further adjusted manually or machine-controlled to reduce the abutment between components.

[0040] Embodiment 2:

[0041] like Figure 4 As shown, in a further improvement on the basis of the first embodiment, the positioning column 31 is further provided with an adapter, the adapter includes an oil pump, an oil storage tank and an expansion piece, the oil pump and the oil storage tank are both embedded in the connecting column 3, the number of expansion pieces is at least two and they are arranged on the positioning column 31; the expansion piece includes an arc plate 32 and two groups of telescopic rods, the telescopic rods include a connecting rod 33, a first piston block 34 and a first spring 35, a receiving groove 36 is opened on the side of the positioning column 31, a vertical cavity 37 is opened in the middle of the positioning column 31, and an active cavity 38 is opened between the receiving groove 36 and the vertical cavity 37, one end of the connecting rod 33 is connected to the arc plate 32 and slides into the active cavity 38, the first piston block 34 is connected to the other end of the connecting rod 33 and is slidably and sealedly connected to the active cavity 38, the first spring 35 is sleeved on the connecting rod 33 and is located in the active cavity 38, and the vertical cavity 37 is connected to the oil pump.

[0042] Since different assembly bases have different sizes of connected holes, in order to provide good support and stability and avoid displacement deviation during component assembly, when the assembly base is connected to the adjustment component, the oil pump can be turned on through the control panel to deliver the hydraulic oil stored in the oil tank into the vertical chamber 37. The pressure of the hydraulic oil in the vertical chamber 37 will push the first piston block 34 in the expansion member to move outward along the active chamber 38, thereby pushing the arc plate 32 to expand outward through the connecting rod 33, and then cooperating with the circular connecting hole of the assembly base to achieve a stabilizing effect. In this way, after the assembly base is connected and positioned with the connecting column 3, it can be further adaptively adjusted according to the aperture size of the connecting hole of the assembly base to achieve a stable effect and avoid displacement. In the static state, the arc plate 32 will be kept retracted into the receiving groove 36 through the action of the first spring 35, thereby avoiding component obstruction when installing the assembly base.

[0043] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An assembly platform for a marine diesel engine base, comprising a stand and a control panel, characterized in that: The upper end of the platform is provided with a positioning mechanism and a lifting mechanism; The positioning mechanism is composed of two adjustment components and four connection components, the two adjustment components are arranged at the upper end of the platform, and the four connection components are connected to the two adjustment components; The adjusting assembly includes a bidirectional screw, a stabilizing slide bar, a motor and two supports, the bidirectional screw and the stabilizing slide bar are parallelly distributed on opposite sides of the platform, the bidirectional screw is rotatably connected to the platform through a base, the stabilizing slide bar is fixedly connected to the platform through the base, the motor is fixedly connected to the platform and is transmission-connected to the bidirectional screw, the two supports are symmetrically arranged between the bidirectional screw and the stabilizing slide bar, and the four connecting assemblies are respectively arranged at the intersection points of the four supports; The lifting mechanism includes a bottom plate and a plurality of lifters, the bottom plate is connected to the lower side of the platform, and the plurality of lifters are evenly arranged on the upper end of the bottom plate; The support device includes two support blocks and a guide rod. The threaded sections on both sides of the bidirectional screw have opposite rotation directions. The two support blocks are respectively connected to the threaded sections on one side of the bidirectional screw and the stabilizing slide rod of the same adjusting component. The guide rod is fixed between the two support blocks. The two adjusting components are overlapped and distributed up and down. The connecting assembly comprises a connecting column and a positioning column, wherein the connecting column is slidably connected to the two guide rods whose projections intersect, and the positioning column is fixedly arranged at the upper end of the connecting column; The positioning column is also provided with an adapter, the adapter includes an oil pump, an oil storage tank and an expansion piece, the oil pump and the oil storage tank are both embedded in the connecting column, and the number of the expansion pieces is at least two and they are provided on the positioning column; The expansion member includes an arc-shaped plate and two groups of telescopic rods, the telescopic rod includes a connecting rod, a first piston block and a first spring, a receiving groove is provided on the side of the positioning column, a vertical cavity is provided in the middle of the positioning column, an active cavity is provided between the receiving groove and the vertical cavity, one end of the connecting rod is connected to the arc-shaped plate and slides into the active cavity, the first piston block is connected to the other end of the connecting rod and is slidably sealed to the active cavity, the first spring is sleeved on the connecting rod and located in the active cavity, and the vertical cavity is communicated with the oil pump; The lifter includes a sealing tank, a second piston block, a lifting rod, a force plate and a second spring. The sealing tank is fixedly connected to the bottom plate. The second piston block is slidingly sealed in the sealing tank. The lifting rod is fixedly arranged at the upper end of the second piston block and extends out of the sealing tank. The force plate is connected to the other end of the lifting rod. The second spring is sleeved on the lifting rod and located in the sealing tank. A driving member matching the lifter is provided at the lower end of the bottom plate.

2. The assembly platform of a marine diesel engine base according to claim 1, characterized in that: The driving member includes a main liquid pipe and a plurality of liquid distribution pipes, the main liquid pipe is connected to the plurality of liquid distribution pipes, the main liquid pipe is connected to an external liquid supply mechanism, and the plurality of liquid distribution pipes are connected to the lower ends of the plurality of sealed tanks in a one-to-one correspondence.

3. The assembly platform of a marine diesel engine base according to claim 2, characterized in that: A cross support frame is provided in the middle of the platform, and a load block is provided in the middle of each of the four guide rods. The guide rods are slidably connected to the side surfaces of the cross support frame which are perpendicular to the plane projection through the load blocks.

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