A process for connecting a heavy-duty levelling mechanism of a track engineering vehicle

Abstract

The present application provides a kind of process method of track engineering vehicle heavy load leveling mechanism connection, comprising the following steps: S1, leveling chassis is guaranteed in manufacturing process the flatness of the plane where its mounting seat is located.The process method of track engineering vehicle heavy load leveling mechanism connection provided by the present application effectively solves the problem that the frame deflection changes greatly under the action of gravity due to the large weight of leveling mechanism equipment and materials, the position of three mounting seat connecting pins changes, the coaxiality of the pins is out of tolerance, which causes the leveling mechanism to be stuck and even unable to rotate, while overcoming the difficulties in calculating the deformation amount of the superstatic structure connection between the leveling mechanism and the frame, predicting the deformation condition, and ensuring the concentricity of the pins in the prepared state through conventional methods such as reserving height difference or prefabricating reverse deformation, ensuring the normal use and smooth rotation of the leveling mechanism in the prepared state, and the on-site operation is simple and easy to operate.

Description

Technical Field

[0001] This invention relates to the field of track engineering technology, and in particular to a process method for connecting heavy-load leveling mechanisms of track engineering vehicles. Background Technology

[0002] As the types of equipment used on rail engineering vehicles increase, some equipment, especially some heavy equipment, needs to be level during operation, and these devices need to be installed on leveling mechanisms.

[0003] The existing leveling mechanism generally consists of a leveling base, a rotating pin, a frame mounting seat, a leveling cylinder mounting seat, and leveling cylinders. The frame mounting seat is connected to the frame, and the mounting seat is connected to the leveling base. The two are connected by a rotating pin. The leveling cylinders on both sides are connected to the frame and the leveling base through leveling cylinder seats. Then, the state of the leveling mechanism is adjusted by the leveling cylinders on both sides. After leveling, the leveling mechanism in the unloaded state is directly welded to the frame. Although this can ensure that the coaxiality of the rotating pin meets the requirements and the rotation is smooth, it is not a problem.

[0004] However, due to the large weight of the equipment and materials on the leveling mechanism, the frame deflection changes significantly under gravity after the equipment and materials are in place. The positions of the three mounting seats and their pins all change, and the size of the middle mounting seat changes more than that of the two side mounting seats. The coaxiality of the three pins exceeds the tolerance, causing the leveling mechanism to jam or even become unable to rotate. Furthermore, the leveling mechanism is connected to the frame using a statically indeterminate structure, making the calculation of its deformation complex and the deformation situation difficult to predict. It is impossible to ensure the coaxiality of the pins in the prepared state by reserving a height difference or prefabricating anti-deformation.

[0005] Therefore, it is necessary to provide a process method for connecting the heavy-load leveling mechanism of a rail engineering vehicle to solve the above-mentioned technical problems. Summary of the Invention

[0006] This invention provides a process method for connecting heavy-load leveling mechanisms in rail engineering vehicles, which solves the problem that the deformation of the leveling mechanism is difficult to predict and the coaxiality of the pin shaft in the prepared state cannot be guaranteed through preventive measures.

[0007] To solve the above-mentioned technical problems, the present invention provides a process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle, comprising the following steps:

[0008] S1. The leveling base frame ensures the flatness of the plane on which its mounting base is located during the manufacturing process;

[0009] S2. Use a steel pipe or round bar (its outer diameter is 1mm smaller than the mounting seat bushing and its length exceeds the welding position of the mounting seat) to insert into the three mounting seat bushings, and then place it on the position of the leveling base frame for welding. Ensure that the coaxiality of the mounting seat bushing holes welded on the lower plane of the leveling base frame after welding is not greater than 1mm.

[0010] S3. Use a temporary pin (1mm smaller than the inner diameter of the bushing) to connect the mounting base to the frame connecting base, and then place it on the frame as required by the drawing. Use the adjusting equipment near the leveling cylinder mounting base to adjust the leveling base to the upper plane level.

[0011] S4. Use counterweights to preload the equipment to its full-load state according to the mass distribution of the tooling on the leveling mechanism, and then weld the frame connecting seat to the frame weld.

[0012] S5. Use the adjusting equipment to lift the leveling base frame, remove the temporary pin and install the rotating pin, and remove the counterweight after the replacement is completed.

[0013] S6. After the counterweight is removed, the frame deflection returns to normal. The coaxiality of the three pins connecting the frame connecting seat and the leveling base increases accordingly. In the free state, the leveling mechanism is stuck and cannot rotate. After the equipment is installed and the vehicle is ready, the frame deflection returns to the state when it was welded, the coaxiality of the pins returns to normal, and the leveling base resumes rotation.

[0014] Preferably, in step S4, after the leveling base frame and the frame connecting seat are connected by a temporary pin, the leveling base frame is placed on the frame. The upper plane of the leveling base frame is adjusted to be level using a leveling device. Then, counterweights are loaded onto the leveling mechanism according to the mass distribution when the equipment is working, and the frame connecting seat and the frame are finally connected.

[0015] Preferably, the leveling base frame does not require pre-deformation, but the coaxiality of the mounting seat bushing welded to its lower plane must be ensured.

[0016] Preferably, the adjusting device used in step S3 includes a jack, the bottom of which is rotatably connected to a rotating seat, the bottom of which is fixedly mounted with a base plate, the side of which is fixedly mounted with a side plate, the top of which is fixedly mounted with a threaded sleeve, the inner side of which is threadedly connected with a lead screw, the top of which is fixedly mounted with a rotating handle, and the top of which is rotatably connected with a top plate.

[0017] Preferably, a positioning plate is fixedly installed on the top of the outer side of the threaded sleeve, and a positioning groove is formed inside one end of the positioning plate.

[0018] Preferably, a limiting plate is fixedly installed at the bottom of the top plate, a first toothed plate is fixedly installed on one side of the limiting plate, and the two sides of the limiting plate are respectively attached to the two sides of the inner side of the positioning groove.

[0019] Preferably, a limiting component is fixedly installed inside one end of the positioning plate. The limiting component includes a mounting frame, a threaded rod, a rotating plate, a moving plate, a sliding rod, a baffle, a spring, a push plate, and a second toothed plate.

[0020] Preferably, the mounting frame is fixedly installed inside one end of the positioning plate, the threaded rod is threadedly connected to the inside of one side of the mounting frame, the rotating plate is fixedly installed at one end of the threaded rod, the moving plate is rotatably connected to the other end of the threaded rod, the sliding rod is slidably connected to the inside of the top and bottom of the moving plate respectively, the spring is sleeved on the outer side of the sliding rod, the pushing plate is fixedly installed at one end of the sliding rod, and the second toothed plate is fixedly installed on one side of the pushing plate.

[0021] Preferably, the outer surfaces of the movable plate and the push plate are slidably connected to the inner surface of the mounting frame, the baffle is fixedly installed at the other end of the slide rod, the spring is disposed between the push plate and the movable plate, and the second toothed plate and the first toothed plate are disposed opposite to each other.

[0022] Preferably, a mounting plate is provided on the top of the top plate, and a rubber pad is fixedly installed on the top of the mounting plate.

[0023] Preferably, positioning rods are fixedly installed at both ends of the bottom of the mounting plate, and the positioning rods are located inside the top plate.

[0024] Preferably, a groove is provided inside the bottom of the positioning rod, a support plate is fixedly installed on the inner side of the groove, spring telescopic rods are fixedly installed on both sides of the support plate, a locking block is fixedly installed at one end of each of the two spring telescopic rods, the two locking blocks are slidably connected to the inner side of the groove, and the two locking blocks are located at the bottom of the top plate.

[0025] Compared with related technologies, the process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle provided by the present invention has the following beneficial effects:

[0026] This invention provides a process method for connecting a heavy-load leveling mechanism on a rail engineering vehicle. First, during the manufacturing process of the leveling mechanism, the coaxiality of the mounting seat bushing is strictly ensured. Then, a temporary pin is used to connect the mounting seat to the frame connecting seat and it is placed on the frame according to the drawings. An adjusting device is used near the leveling cylinder mounting seat to level the leveling base frame. Next, a counterweight is used to preload the mechanism according to the weight distribution of the tooling when fully loaded. Then, the frame connecting seat and the frame weld are welded. Finally, the leveling base frame is lifted, the temporary pin is removed, a rotating pin is installed, and the counterweight is removed, effectively... This invention solves the problems caused by the large weight of the leveling mechanism and its materials, which leads to significant changes in the frame deflection under gravity, changes in the position of the three mounting seats and their associated pins, and excessive pin coaxiality tolerances, resulting in the leveling mechanism becoming stuck or even unable to rotate. It also overcomes the difficulties of complex calculation of deformation between the leveling mechanism and the statically indeterminate structure of the frame, unpredictable deformation, and the inability to ensure pin coaxiality in the prepared state through conventional methods such as reserving height differences or prefabricating reverse deformation. This invention ensures the normal use and smooth rotation of the leveling mechanism in the prepared state, and makes on-site operation simple and easy. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the leveling mechanism provided by the present invention;

[0028] Figure 2 This is a schematic diagram of the leveling mechanism and equipment installation structure provided by the present invention;

[0029] Figure 3 A schematic diagram of the welding structure of the mounting base provided by the present invention;

[0030] Figure 4 A schematic diagram of the placement structure of the leveling mechanism provided by the present invention;

[0031] Figure 5 This is a schematic diagram of the preloading structure on the leveling mechanism provided by the present invention;

[0032] Figure 6 This is a schematic diagram of the first embodiment of the adjusting device used in the process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle provided by the present invention.

[0033] Figure 7 for Figure 6 The diagram shows another perspective of the structure.

[0034] Figure 8 for Figure 6 The enlarged schematic diagram of part A shown below;

[0035] Figure 9 for Figure 8 The diagram shows a cross-sectional view of the limiting component.

[0036] Figure 10This is a schematic diagram of the second embodiment of the adjusting device used in the process method for connecting a heavy-load leveling mechanism of a track engineering vehicle provided by the present invention.

[0037] Figure 11 for Figure 10 The diagram shows a cross-sectional view of the positioning rod.

[0038] The following are the labels in the diagram: 1. Base plate, 11. Rotating seat, 12. Jack, 2. Side plate, 21. Threaded sleeve, 22. Lead screw, 23. Rotating handle, 24. Top plate, 3. Limiting plate, 31. First toothed plate, 4. Positioning plate, 41. Positioning groove, 5. Limiting assembly, 51. Mounting frame, 52. Threaded rod, 53. Rotating plate, 54. Moving plate, 55. Sliding rod, 56. Baffle, 57. Spring, 58. Pushing plate, 59. Second toothed plate, 6. Mounting plate, 61. Rubber pad, 62. Positioning rod, 63. Sliding groove, 64. Support plate, 65. Spring telescopic rod, 66. Snap-fit ​​block. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0040] First Embodiment

[0041] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 ,in, Figure 1 This is a schematic diagram of the leveling mechanism provided by the present invention; Figure 2 This is a schematic diagram of the leveling mechanism and equipment installation structure provided by the present invention; Figure 3 A schematic diagram of the welding structure of the mounting base provided by the present invention; Figure 4 A schematic diagram of the placement structure of the leveling mechanism provided by the present invention; Figure 5 This is a schematic diagram of the preload structure on the flat mechanism provided by the present invention; Figure 6 This is a schematic diagram of the first embodiment of the adjusting device used in the process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle provided by the present invention. Figure 7 for Figure 6 The diagram shows another perspective of the structure. Figure 8 for Figure 6 The enlarged schematic diagram of part A shown below; Figure 9 for Figure 8 The diagram shows a cross-sectional view of the limiting component. A process method for connecting a heavy-load leveling mechanism in a rail engineering vehicle includes the following steps:

[0042] S1. The leveling base frame ensures the flatness of the plane on which its mounting base is located during the manufacturing process;

[0043] S2. Use a steel pipe or round bar (its outer diameter is 1mm smaller than the mounting seat bushing and its length exceeds the welding position of the mounting seat) to insert into the three mounting seat bushings, and then place it on the position of the leveling base frame for welding. Ensure that the coaxiality of the mounting seat bushing holes welded on the lower plane of the leveling base frame after welding is not greater than 1mm.

[0044] S3. Use a temporary pin (1mm smaller than the inner diameter of the bushing) to connect the mounting base to the frame connecting base, and then place it on the frame as required by the drawing. Use the adjusting equipment near the leveling cylinder mounting base to adjust the leveling base to the upper plane level.

[0045] S4. Use counterweights to preload the equipment to its full-load state according to the mass distribution of the tooling on the leveling mechanism, and then weld the frame connecting seat to the frame weld.

[0046] S5. Use the adjusting equipment to lift the leveling base frame, remove the temporary pin and install the rotating pin, and remove the counterweight after the replacement is completed.

[0047] S6. After the counterweight is removed, the frame deflection returns to normal. The coaxiality of the three pins connecting the frame connecting seat and the leveling base increases accordingly. In the free state, the leveling mechanism is stuck and cannot rotate. After the equipment is installed and the vehicle is ready, the frame deflection returns to the state when it was welded, the coaxiality of the pins returns to normal, and the leveling base resumes rotation.

[0048] In step S4, after the leveling base frame and the frame connecting seat are connected by a temporary pin, the leveling base frame is placed on the frame. The leveling equipment is used to adjust the upper plane of the leveling base frame to be horizontal. Then, counterweights are used on the leveling mechanism to load the frame to the ready state according to the mass distribution when the equipment is working. Finally, the frame connecting seat and the frame are connected.

[0049] The leveling base frame does not require pre-deformation, but it is necessary to ensure the coaxiality of the mounting seat bushing welded to its lower surface.

[0050] The adjusting device used in step S3 includes a jack 12, a rotating seat 11 rotatably connected to the bottom of the jack 12, a base plate 1 fixedly installed at the bottom of the rotating seat 11, a side plate 2 fixedly installed on the side of the base plate 1, a threaded sleeve 21 fixedly installed on the top of the side plate 2, a lead screw 22 threadedly connected to the inner side of the threaded sleeve 21, a rotating handle 23 fixedly installed on the top of the lead screw 22, and a top plate 24 rotatably connected to the top of the rotating handle 23.

[0051] A positioning plate 4 is fixedly installed on the top of the outer side of the threaded sleeve 21, and a positioning groove 41 is opened inside one end of the positioning plate 4.

[0052] A limiting plate 3 is fixedly installed at the bottom of the top plate 24. A first toothed plate 31 is fixedly installed on one side of the limiting plate 3. The two sides of the limiting plate 3 are respectively attached to the two sides of the inner side of the positioning groove 41.

[0053] The limiting plate 3 slides on the inner side of the positioning groove 41. In this way, when in use, the limiting plate 3 can limit the top plate 24 and prevent the top plate 24 from rotating during the lifting and lowering process, thereby increasing the stability of the top plate 24 when moving.

[0054] A limiting component 5 is fixedly installed inside one end of the positioning plate 4. The limiting component 5 includes a mounting frame 51, a threaded rod 52, a rotating plate 53, a moving plate 54, a sliding rod 55, a baffle 56, a spring 57, a pushing plate 58, and a second toothed plate 59.

[0055] The mounting frame 51 is fixedly installed inside one end of the positioning plate 4. The threaded rod 52 is threadedly connected to the inside of one side of the mounting frame 51. The rotating plate 53 is fixedly installed at one end of the threaded rod 52. The moving plate 54 is rotatably connected to the other end of the threaded rod 52. The sliding rod 55 is slidably connected to the inside of the top and bottom of the moving plate 54 respectively. The spring 57 is sleeved on the outer side of the sliding rod 55. The pushing plate 58 is fixedly installed at one end of the sliding rod 55. The second toothed plate 59 is fixedly installed on one side of the pushing plate 58.

[0056] Before adjusting the height of the top plate 24, the user first rotates the rotating plate 53, causing the rotating plate 53 to drive the threaded rod 52 to make a threaded connection inside the mounting frame 51, thereby driving the moving plate 54 and the pushing plate 58 to move to one side of the first toothed plate 31, so that the first toothed plate 31 and the second toothed plate 59 mesh. When the top plate 24 moves upward, it will drive the limiting plate 3 and the first toothed plate 31 to move upward. At this time, the spring 57 pushes the pushing plate 58, so that the second toothed plate 59 and the first toothed plate 31 are always meshed, thereby limiting the top plate 24 and increasing the stability of the manufacturing process.

[0057] When disassembly is required later, the second toothed plate 59 should be adjusted to be far away from the first toothed plate 31.

[0058] The outer surfaces of the movable plate 54 and the push plate 58 are slidably connected to the inner surface of the mounting frame 51. The baffle 56 is fixedly installed at the other end of the slide rod 55. The spring 57 is disposed between the push plate 58 and the movable plate 54. The second toothed plate 59 and the first toothed plate 31 are disposed opposite to each other.

[0059] When in use, place the base plate 1 on the frame, install the top of the jack 12 and the cylinder mounting seat, and then adjust the base frame by extending the jack 12. After adjusting to the appropriate angle, the user rotates the handle 23, which drives the lead screw 22 to make a threaded connection on the inner side of the threaded sleeve 21. This causes the top of the lead screw 22 to move the top plate 24 upward, so that the top of the top plate 24 abuts against the bottom of the leveling base frame, thereby supporting the leveling base frame and preventing the jack 12 from being subjected to pressure for a long time.

[0060] Compared with related technologies, the process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle provided by the present invention has the following beneficial effects:

[0061] By first ensuring the coaxiality of the mounting seat bushing during the manufacturing process of the leveling mechanism, then connecting the mounting seat to the frame connecting seat using temporary pins and placing it on the frame according to the drawings, adjusting the leveling base frame near the leveling cylinder mounting seat using adjusting equipment, and then preloading the equipment tooling with counterweights according to the weight distribution of the leveling mechanism when fully loaded, and then welding the frame connecting seat to the frame weld, the leveling base frame is lifted, the temporary pin is removed, the rotating pin is installed, and the counterweight is removed. This effectively solves the problems of large frame deflection changes under gravity, changes in the position of the three mounting seats and the pins, and excessive pin coaxiality deviation caused by the large weight of the leveling mechanism equipment and materials, which leads to the leveling mechanism being stuck or even unable to rotate. At the same time, it overcomes the difficulties of complex calculation of deformation of the connection between the leveling mechanism and the statically indeterminate structure of the frame, difficulty in predicting deformation, and inability to ensure the pin coaxiality in the prepared state through conventional methods such as reserving height differences or prefabricating reverse deformation. This ensures the normal use and smooth rotation of the leveling mechanism in the prepared state, and the on-site operation is simple and easy.

[0062] Second Embodiment

[0063] Please refer to the following: Figure 10 , Figure 11 Based on the first embodiment of this application, which provides a process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle, the second embodiment of this application proposes another process method for connecting such a mechanism. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0064] Specifically, the difference in the process method for connecting the heavy-load leveling mechanism of a rail engineering vehicle provided in the second embodiment of this application is that, in the process method for connecting the heavy-load leveling mechanism of a rail engineering vehicle, an mounting plate 6 is provided on the top of the top plate 24, and a rubber pad 61 is fixedly installed on the top of the mounting plate 6.

[0065] Positioning rods 62 are fixedly installed at both ends of the bottom of the mounting plate 6, and the positioning rods 62 are located inside the top plate 24.

[0066] The bottom of the positioning rod 62 has a groove 63 inside. A support plate 64 is fixedly installed on the inner side of the groove 63. Spring telescopic rods 65 are fixedly installed on both sides of the support plate 64. A locking block 66 is fixedly installed at one end of each of the two spring telescopic rods 65. The two locking blocks 66 are slidably connected to the inner side of the groove 63. The two locking blocks 66 are located at the bottom of the top plate 24.

[0067] When disassembling and reassembling, the user can directly place the bottom of the snap-fit ​​block 66 against the top of the top plate 24 and press down. At this time, the snap-fit ​​block 66 will move towards the inner side of the slide groove 63 until the snap-fit ​​block 66 moves to the bottom of the top plate 24, and then the snap-fit ​​block 66 will move out from the inner side of the slide groove 63, thereby limiting the positioning rod 62.

[0068] The working principle of the process method for connecting the heavy-load leveling mechanism of a rail engineering vehicle provided by the present invention is as follows:

[0069] When in use, the top of the rubber pad 61 can be placed against the top of the leveling base to prevent slipping. After prolonged use, when the rubber pad 61 is severely worn, the user can push the two locking blocks 66 to move them towards the inner side of the slide groove 63, thereby retracting the spring telescopic rod 65. Then, the mounting plate 6 is moved upward to remove the positioning rod 62 from the inside of the top plate 24, thus disassembling the mounting plate 6 and the rubber pad 61.

[0070] Compared with related technologies, the process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle provided by the present invention has the following beneficial effects:

[0071] With the installation plate 6 and the rubber pad 61, the top of the rubber pad 61 can contact the bottom of the leveling base during use, thereby playing a role in preventing slippage and increasing the stability of the support.

[0072] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A process method for connecting heavy-load leveling mechanisms of rail engineering vehicles, characterized in that, Includes the following steps: S1. The leveling base frame ensures the flatness of the plane on which its mounting base is located during the manufacturing process; S2. Insert a steel pipe or round bar into the three mounting seat bushings, and then place it on the leveling base frame for welding. Ensure that the coaxiality of the mounting seat bushing holes welded on the lower plane of the leveling base frame after welding is not greater than 1mm. The outer diameter of the steel pipe or round bar is 1mm smaller than the mounting seat bushing, and the length exceeds the welding position of the mounting seat. S3. Use a temporary pin that is 1mm smaller than the inner diameter of the bushing to connect the mounting base to the frame connecting base. Then place it on the frame as required by the drawing. Use the adjusting equipment near the leveling cylinder mounting base to adjust the leveling base to the upper plane level. S4. Use counterweights to preload the equipment to its full-load state according to the mass distribution of the tooling on the leveling mechanism, and then weld the frame connecting seat to the frame weld. S5. Use the adjusting equipment to lift the leveling base frame, remove the temporary pin and install the rotating pin, and remove the counterweight after the replacement is completed. S6. After the counterweight is removed, the frame deflection is restored, and the coaxiality of the three rotating pins connecting the frame connecting seat and the leveling base increases accordingly. In the free state, the leveling mechanism is stuck and cannot rotate. After the equipment is installed and the vehicle is in the ready state, the frame deflection is restored to the state when it was welded, the coaxiality of the pins is restored, and the leveling base resumes rotation. The leveling base frame does not require pre-deformation; The adjusting device used in step S3 includes a jack, a rotating seat rotatably connected to the bottom of the jack, a base plate fixedly installed at the bottom of the rotating seat, a side plate fixedly installed on the side of the base plate, a threaded sleeve fixedly installed on the top of the side plate, a lead screw threadedly connected to the inner side of the threaded sleeve, a rotating handle fixedly installed on the top of the lead screw, and a top plate rotatably connected to the top of the rotating handle.

2. The process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle according to claim 1, characterized in that, A positioning plate is fixedly installed on the top of the outer side of the threaded sleeve, and a positioning groove is opened inside one end of the positioning plate.

3. The process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle according to claim 2, characterized in that, A limiting plate is fixedly installed at the bottom of the top plate, and a first toothed plate is fixedly installed on one side of the limiting plate. The two sides of the limiting plate are respectively attached to the two sides of the inner side of the positioning groove.

4. The process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle according to claim 3, characterized in that, A limiting component is fixedly installed inside one end of the positioning plate. The limiting component includes a mounting frame, a threaded rod, a rotating plate, a moving plate, a sliding rod, a baffle, a spring, a push plate, and a second toothed plate.

5. The process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle according to claim 4, characterized in that, The mounting frame is fixedly installed inside one end of the positioning plate. The threaded rod is threadedly connected to the inside of one side of the mounting frame. The rotating plate is fixedly installed at one end of the threaded rod. The moving plate is rotatably connected to the other end of the threaded rod. The sliding rod is slidably connected to the inside of the top and bottom of the moving plate. The spring is sleeved on the outer side of the sliding rod. The pushing plate is fixedly installed at one end of the sliding rod. The second toothed plate is fixedly installed on one side of the pushing plate.

6. The process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle according to claim 5, characterized in that, The outer sides of the movable plate and the push plate are slidably connected to the inner side of the mounting frame. The baffle is fixedly installed at the other end of the slide rod. The spring is located between the push plate and the movable plate. The second toothed plate and the first toothed plate are arranged opposite to each other.

7. The process method for connecting a heavy-load leveling mechanism of a rail engineering vehicle according to claim 6, characterized in that, A mounting plate is provided on the top of the top plate, and a rubber pad is fixedly installed on the top of the mounting plate; positioning rods are fixedly installed at both ends of the bottom of the mounting plate, and the positioning rods are located inside the top plate; a sliding groove is opened inside the bottom of the positioning rod, and a support plate is fixedly installed on the inner side of the sliding groove; spring telescopic rods are fixedly installed on both sides of the support plate, and a snap-fit ​​block is fixedly installed at one end of each of the two spring telescopic rods; the two snap-fit ​​blocks are slidably connected to the inner side of the sliding groove, and the two snap-fit ​​blocks are located at the bottom of the top plate.

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