Travelling crane maintenance method and auxiliary maintenance mechanism

Abstract

The invention provides a travelling crane overhauling method and an auxiliary overhauling mechanism. The travelling crane overhauling method comprises the following steps that an end beam connecting unit is installed at a set position on an end beam of a travelling crane; the end beam connecting unit comprises a supporting base and a foot stool connected with the supporting base, one end of the foot stool is connected with the supporting base, and a clamping hook is arranged at the other end of the foot stool; the supporting base is located on the upper surface of the end beam, and the lower surface of the end beam is hooked by the clamping hook; and the hoisting unit connected with the supporting base is used for hoisting the to-be-overhauled part of the travelling crane to a set position. According to the crane overhauling method and the auxiliary overhauling mechanism, overhauling operation is facilitated, the difficulty of overhauling operation is lowered, the labor intensity of overhauling operation is relieved, the labor cost is saved, and the overhauling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle maintenance, and in particular to a vehicle maintenance method and an auxiliary maintenance mechanism. Background Art

[0002] During the long-term use of the crane, some of its parts will need to be replaced and repaired due to age or wear. For example, the wheels of the crane running mechanism need to be replaced due to age or large wear on the wheel tread. Since it is difficult to find a rooting point for a manual hoist, etc., the prior art is very complicated when replacing the wheel, especially when lifting the wheel, and the workload is large, the labor intensity is high, and a lot of manpower and time costs are consumed, resulting in low efficiency in wheel replacement and maintenance, long vehicle parking time, and ineffective guarantee of production needs. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a vehicle maintenance method which is simple to operate, saves labor costs, and can improve efficiency.

[0004] To achieve the above object, the present invention provides a vehicle maintenance method, comprising the following steps:

[0005] The end beam connection unit is installed at a set position on the end beam of the traveling crane; the end beam connection unit comprises a support base and a tripod connected to the support base, one end of the tripod is connected to the support base, and the other end of the tripod is provided with a hook; the support base is located on the upper surface of the end beam, and the hook hooks the lower surface of the end beam;

[0006] The crane component to be inspected is lifted to a set position using a lifting unit connected to the supporting base.

[0007] Furthermore, the tripod includes an upper tripod and a lower tripod, the upper end of the upper tripod is fixedly connected to the support base, the lower end of the upper tripod is detachably connected to the upper end of the lower tripod, and the lower end of the lower tripod is provided with the hook. In the process of installing the end beam connecting unit on the end beam of the crane, the support base fixedly connected to the upper tripod is first placed on the upper surface of the end beam, and then the lower tripod is connected to the upper tripod.

[0008] Furthermore, the upper tripod is provided with a plurality of upper connecting holes spaced apart in the up-and-down directions, and the lower tripod is provided with a lower connecting hole; in the process of connecting the lower tripod with the upper tripod, the height of the lower tripod is adjusted until the matching relationship between the hook and the lower surface of the end beam meets the set requirements, and the lower connecting hole corresponds to one of the upper connecting holes, and then the bolts are passed through the upper connecting hole and the lower connecting hole at the same height position to realize the connection between the lower tripod and the upper tripod.

[0009] Furthermore, the lifting unit includes a lifting arm, one end of the lifting arm is connected to the supporting base through a rotating assembly, and the other end of the lifting arm is provided with a lifting connection piece, the lifting connection piece can be raised and lowered, and the other end of the lifting arm can rotate relative to the supporting base; in the process of using the lifting unit to lift the component to be repaired to the set position, the other end of the lifting arm drives the lifting connection piece to rotate relative to the supporting base until the lifting connection piece is located directly above the component to be repaired, the lifting connection piece descends to the set position, and then the component to be repaired is connected with the lifting connection piece, the lifting connection piece drives the component to be repaired to rise to the set position, and the other end of the lifting arm drives the lifting connection piece and the component to be repaired to rotate until the component to be repaired moves to the set area, the lifting connection piece descends until the component to be repaired descends to the set position, and the connection relationship between the component to be repaired and the lifting connection piece is disconnected, so as to realize the transportation of the component to be repaired to the set position.

[0010] Furthermore, the rotating assembly includes a ratchet fixedly connected to the lifting arm, a connecting plate fixed on the supporting base, and a locking buckle installed on the connecting plate, one end of the locking buckle is hinged to the connecting plate through a pin shaft; during the rotation of the lifting arm relative to the supporting base, the ratchet rotates with the rotation of the lifting arm, and when the other end of the lifting arm drives the lifting connecting piece to rotate to a set position, the locking buckle is toggled until the locking buckle is embedded between two gear teeth of the ratchet, and the locking buckle restricts the ratchet and the lifting arm from continuing to rotate.

[0011] As described above, the vehicle maintenance method according to the present invention has the following beneficial effects:

[0012] In this method for crane maintenance, the end beam connection unit is installed at a set position on the end beam of the crane, which is equivalent to adding a rooting point on the end beam for the lifting unit, and the end beam connection unit adopts a support base, a tripod and a hook structure design, and through the support base and the hook respectively with the upper and lower surfaces of the end beam, the support base can be stably installed on the end beam to prevent the lifting unit from tipping over during the process of lifting the parts to be repaired, providing a stable rooting point for the lifting unit to ensure the normal operation of the lifting unit; and the installation form of the end beam connection unit on the end beam is simple and easy to implement, thereby facilitating maintenance work. This method for crane maintenance realizes the lifting of the parts to be repaired in this way, which is simple to operate, reduces labor intensity, saves labor costs, and improves maintenance efficiency.

[0013] Another technical problem to be solved by the present invention is to provide an auxiliary maintenance mechanism that can save labor costs and improve maintenance efficiency.

[0014] To achieve the above-mentioned purpose, the present invention provides an auxiliary maintenance mechanism for implementing the vehicle maintenance method, including an end beam connection unit and a lifting unit, the end beam connection unit includes a support base and a tripod, one end of the tripod is connected to the support base, and the other end of the tripod is provided with a hook, and the lifting unit is connected to the support base.

[0015] Furthermore, the tripod comprises an upper tripod and a lower tripod, the upper end of the upper tripod is fixedly connected to the support base, the lower end of the upper tripod is detachably connected to the upper end of the lower tripod, and the lower end of the lower tripod is provided with the hook.

[0016] Furthermore, the lower tripod is connected to the upper tripod by bolts, and the upper tripod is provided with a plurality of upper connection holes spaced apart in the up-and-down directions, and the lower tripod is provided with lower connection holes, and the bolts are passed through the lower connection holes and the upper connection holes.

[0017] Furthermore, the lifting unit includes a lifting tumbler, one end of which is connected to the support base via a rotating assembly, the other end of which is provided with a lifting connector which can be raised and lowered, and the other end of which can rotate relative to the support base.

[0018] Furthermore, the rotating assembly includes a ratchet fixedly connected to the lifting arm, a connecting plate fixed on the supporting base, and a locking buckle installed on the connecting plate, and one end of the locking buckle is hinged to the connecting plate through a pin.

[0019] As described above, the auxiliary maintenance mechanism according to the present invention has the following beneficial effects:

[0020] Based on the above method steps, the auxiliary maintenance mechanism can lift the parts to be repaired on the crane to the set position, facilitate the lifting operation of the parts to be repaired, reduce labor intensity, save labor costs, and improve maintenance operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a first perspective stereoscopic diagram of the auxiliary maintenance mechanism in an embodiment of the present invention.

[0022] Figure 2 It is a stereoscopic diagram from a second perspective of the auxiliary maintenance mechanism in an embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of the structure of the lifting unit and the rotating assembly in an embodiment of the present invention.

[0024] Component number description

[0025] 1 End beam connection unit 211 Handle

[0026] 11 Support base 22 Lifting connector

[0027] 12 tripod 221 hook

[0028] 121 upper tripod 23 pulley

[0029] 122 Lower scaffold 24 Lifting wire rope

[0030] 123 Upper connection hole 3 Rotating assembly

[0031] 124 Lower connecting hole 31 Ratchet

[0032] 13 Hook 32 Connecting plate

[0033] 2 Lifting unit 33 Locking buckle

[0034] 21 Lifting jib DETAILED DESCRIPTION

[0035] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0036] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0037] like Figures 1 to 3 As shown, this embodiment provides an auxiliary maintenance mechanism, including an end beam connection unit 1 and a lifting unit 2, the end beam connection unit 1 includes a support base 11 and a tripod 12, one end of the tripod 12 is connected to the support base 11, the other end of the tripod 12 is provided with a hook 13, and the lifting unit 2 is connected to the support base 11. At the same time, this embodiment provides a vehicle maintenance method using the auxiliary maintenance mechanism, including the following steps:

[0038] The end beam connection unit 1 is installed at a set position on the end beam of the crane; the support base 11 is located on the upper surface of the end beam, and the hook 13 hooks the lower surface of the end beam;

[0039] The crane component to be inspected is hoisted to a set position by using a hoisting unit 2 connected to the supporting base 11 .

[0040] In the crane maintenance method, the end beam connection unit 1 is installed at a set position on the end beam of the crane, which is equivalent to adding a rooting point for the lifting unit 2 on the end beam, and the end beam connection unit 1 adopts a support base 11, a tripod 12 and a hook 13 structural design, and through the matching relationship between the support base 11 and the hook 13 and the upper and lower surfaces of the end beam respectively, the support base 11 can be stably installed on the end beam, preventing the support base 11 from tipping over during the lifting of the parts to be repaired by the lifting unit 2, providing a stable rooting point for the lifting unit 2, and ensuring the normal operation of the lifting unit 2; and the installation form of the end beam connection unit 1 on the end beam is simple and easy to implement, thereby facilitating the maintenance work.

[0041] like Figure 1 and Figure 2 As shown, in this embodiment, the tripod 12 includes an upper tripod 121 and a lower tripod 122. The upper end of the upper tripod 121 is fixedly connected to the support base 11, and the lower end of the upper tripod 121 is detachably connected to the upper end of the lower tripod 122, and a hook 13 is provided at the lower end of the lower tripod 122. In the process of installing the end beam connection unit 1 on the end beam of the traveling crane, the support base 11 fixedly connected to the upper tripod 121 is first placed on the upper surface of the end beam, and then the lower tripod 122 is connected to the upper tripod 121, and the hook 13 is clamped on the lower surface of the end beam. This method is convenient for flexibly selecting the installation position of the support base 11 on the end beam according to the position of the component to be repaired, so that the lifting unit 2 corresponds to the position of the component to be repaired, ensuring that the lifting unit 2 can perform lifting operations on the components to be repaired in various positions, and has a wider range of use. And based on the detachable connection design between the upper tripod 121 and the lower tripod 122, after the maintenance of a certain component to be repaired is completed, it is convenient to remove the auxiliary maintenance mechanism from the end beam; and when another component abnormality occurs and needs maintenance, the support base 11 can be placed at the corresponding position of the end beam according to the position of the component to be repaired, and then the lower tripod 122 can be connected to the upper tripod 121, so that the component to be repaired can be hoisted. This embodiment is based on the split structural design of the tripod 12 and the detachable connection design between the upper tripod 121 and the lower tripod 122, which facilitates the installation and disassembly of the end beam connection unit 1 on the end beam, and facilitates the flexible adjustment of the installation position of the end beam connection unit 1 on the end beam, so that the lifting unit 2 can lift the components to be repaired at various positions respectively, meeting more maintenance needs.

[0042] Specifically, Figure 1 and Figure 2As shown, the lower tripod 122 is connected to the upper tripod 121 by bolts, and the upper tripod 121 is provided with a plurality of upper connection holes 123 spaced apart in the up-down direction, and the lower tripod 122 is provided with a lower connection hole 124, and the bolts are inserted into the lower connection hole 124 and the upper connection hole 123. In the process of connecting the lower tripod 122 with the upper tripod 121, the height of the lower tripod 122 is adjusted until the matching relationship between the hook 13 and the lower surface of the end beam meets the set requirements, and the lower connection hole 124 corresponds to one of the upper connection holes 123, and then the bolts are inserted into the upper connection hole 123 and the lower connection hole 124 at the same height position to achieve the connection between the lower tripod 122 and the upper tripod 121. This structural design facilitates the flexible adjustment of the connection position of the lower tripod 122 and the upper tripod 121 according to the height size of the end beam, realizes the adjustment of the overall length of the tripod 12, and ensures that the hook 13 can have a good matching relationship with the lower surface of the end beam. At the same time, in this embodiment, there are also multiple lower connecting holes 124 on the lower tripod 122, which are spaced apart in the up and down directions, thereby increasing the adjustment range of the connection position between the lower tripod 122 and the upper tripod 121, and further increasing the adjustment range of the overall length of the tripod 12.

[0043] In addition, if Figure 1 and Figure 2 As shown, in this embodiment, both sides of the support base 11 are provided with tripods 12, specifically, each side of the support base 11 is provided with two tripods 12, and the four tripods 12 are distributed at the four corners of the rectangle, and the two tripods 12 on one side correspond to the two tripods 12 on the other side, and the two opposite tripods 12 are distributed in mirror symmetry. This structural design can ensure that the support base 11 is firmly installed on the end beam, prevent the support base 11 from tipping over during lifting, etc., thereby providing a stable rooting point for the lifting unit 2.

[0044] like Figure 1 and Figure 3As shown, in this embodiment, the lifting unit 2 includes a lifting arm 21, one end of the lifting arm 21 is connected to the support base 11 through a rotating component 3, and the other end of the lifting arm 21 is provided with a lifting connector 22, the lifting connector 22 can be raised and lowered, and the other end of the lifting arm 21 can rotate relative to the support base 11. When the lifting unit 2 is used to lift the component to be repaired to the set position, the other end of the lifting arm 21 drives the lifting connector 22 to rotate relative to the support base 11 until the lifting connector 22 is located directly above the component to be repaired, the lifting connector 22 is lowered to the set position, and then the component to be repaired is connected to the lifting connector 22, the lifting connector 22 drives the component to be repaired to rise to the set position, and the other end of the lifting arm 21 drives the lifting connector 22 and the component to be repaired to rotate until the component to be repaired moves to the set area, the lifting connector 22 is lowered, until the component to be repaired is lowered to the set position, the connection between the component to be repaired and the lifting connector 22 is disconnected, and the component to be repaired is transported to the set position. This method is simple to operate and convenient for maintenance work.

[0045] At the same time, if Figure 1 and Figure 3 As shown, the rotating assembly 3 in this embodiment includes a ratchet 31 fixedly connected to the lifting arm 21, a connecting plate 32 fixed on the supporting base 11, and a locking buckle 33 installed on the connecting plate 32, one end of the locking buckle 33 is hinged to the connecting plate 32 through a pin shaft; during the rotation of the lifting arm 21 relative to the supporting base 11, the ratchet 31 rotates with the rotation of the lifting arm 21, and when the other end of the lifting arm 21 drives the lifting connecting piece 22 to rotate to the set position, the locking buckle 33 is turned until the locking buckle 33 is embedded between the two gear teeth of the ratchet 31, and the locking buckle 33 restricts the ratchet 31 and the lifting arm 21 from continuing to rotate, thereby locking the lifting arm 21.

[0046] The vehicle maintenance method and auxiliary maintenance mechanism in this embodiment are specifically used for maintenance of the vehicle running mechanism, especially when the wheels of the running mechanism are abnormal and need to be replaced, the vehicle maintenance method and auxiliary maintenance mechanism are used to facilitate lifting the abnormal wheel to a set position, and then through reverse operation, lift the new wheel to the set position of the vehicle running mechanism to achieve replacement and maintenance of the wheel. That is, the above-mentioned parts to be repaired in this embodiment can specifically be the wheels of the vehicle running mechanism.

[0047] The crane in this embodiment can be used in the field of metallurgical production. The crane maintenance method and auxiliary maintenance mechanism in this embodiment solve the problem of no rooting point when replacing the crane wheel, ensure the safety of wheel lifting, reduce the wheel replacement operation time, and facilitate workers to operate.

[0048] like Figure 2As shown, the lifting unit 2 in this embodiment also includes a drum arranged at one end of the lifting turret 21, a pulley 23 arranged at the other end of the lifting turret 21, and a lifting wire rope 24 wound on the drum. The lifting connector 22 specifically adopts a hook 221, and one end of the lifting wire rope 24 passes through the pulley 23 and is connected to the hook 221. A lifting motion device is also installed on the lifting turret 21, and the lifting motion device can drive the drum to rotate to realize the lifting and lowering movement of the hook 221. In this embodiment, the drum is installed at the rear end of the lifting turret 21 through a drum bearing, the pulley 23 is installed at the top of the lifting turret 21 through a pulley bearing, and the pulley 23 is located in a groove on the lifting turret 21, and the ratchet 31 is installed on the support base 11 through a rotating bearing. The reel is connected to the reel swivel bearing through an axial hole, the pulley 23 is matched with the pulley bearing through an axial hole, the lifting wire rope 24 is fixedly wound on the reel through a pressure plate, the lifting wire rope 24 passes around the pulley 23 and is connected to the hook 221, and the ratchet 31 is connected to the rotary bearing through an axial hole.

[0049] like Figure 1 and Figure 3 As shown, in this embodiment, handles 211 are provided on both side walls of the lifting arm 21. During the rotation of the lifting arm 21, the maintenance personnel can manually grasp the handles 211, push and pull the lifting arm 21, and realize the rotation of the lifting arm 21 and the ratchet 31 relative to the support base 11.

[0050] In addition, in this embodiment, the upper end of the upper tripod 121 is welded to the support base 11 to ensure a high connection strength between the two. The lower tripod 122 is connected to the upper tripod 121 by high-strength bolts to ensure a high connection strength between the upper tripod 121 and the lower tripod 122 to meet the hoisting requirements of the wheel.

[0051] In this embodiment, the lifting capacity of the auxiliary maintenance mechanism is designed to be 1t, the length of the lifting arm 21 is 1m, the lifting height is 2m, and the diameter of the lifting wire rope 24 is 20mm. The maximum weight of a single wheel to be replaced in this embodiment is 400Kg. Apply the maximum load to the tripod 12 located on one side, and perform a force analysis on the tripod 12. The wheel weight is represented by G, the torque generated by the wheel is represented by M, the load borne by the tripod 12 located on one side is represented by F, and the distance from the center of rotation to the tripod 12 is represented by L. The lower tripod 122 model is imported into ANSYS-Workbench, and steel structure is selected as the material, and the force is input for analysis. Through ANSYS-Workbench analysis, the maximum deformation of the tripod 12 is 1.0886mm, which meets the design requirements. The lifting arm 21 model is also imported into ANSYS-Workbench, and steel structure is selected as the material, and the force is input for analysis. Through ANSYS-Workbench analysis, the maximum stress of the lifting arm 21 is 114.14Mpa, which is less than the tensile yield strength of the steel structure 250MPa. The maximum deformation at the top of the lifting arm 21 is 5.4mm, which is relatively small relative to the thickness of the lifting arm 21. Comprehensive analysis shows that the lifting arm 21 meets the design requirements.

[0052] In this embodiment, the calculation process of the lifting wire rope 24 is as follows: the diameter of the lifting wire rope 24 is d, the lifting angle is θ, the weight of the hoisted object is G, the allowable tension of the lifting wire rope 24 is P, the number of lifting wire ropes 24 for lifting is n, the safety factor is k, k is 6 when the sling is not bent, the dynamic load coefficient is k1, and k1 is 1.1, the imbalance coefficient is k2, and k2 is 1.2. The allowable tension of the lifting wire rope 24 is P≈54d / k, in kg; the theoretical force of the lifting wire rope 24 is N=G / n / Cos(θ / 2), in kg. Since P≈54d / k=theoretical force of the lifting wire rope 24×dynamic load coefficient×unbalance coefficient=N×k1×k2, d=(G / n / Cos(θ / 2))×k1×k2×k / 54, in mm. The total load of the crane electric hoist replacement device is G = 0.4t, θ = 90°, n = 1, k1 = 1.1, k = 6. Substituting into the above formula, we get:

[0053] d 2 =[(G / n / Cos(θ / 2))×k1×k2×k / 54]×1000=[(0.4 / 1 / 0.707)×1.1×1.2×6 / 54]×1000=82.980.

[0054] d≈9.11 mm. Therefore, the diameter of the lifting wire rope 24 used in this embodiment is d=20 mm>9.11 mm, which meets the requirements.

[0055] In this embodiment, the auxiliary maintenance mechanism adopts a split combination form. The vehicle maintenance method in this embodiment specifically includes the following steps:

[0056] First, place the support base 11 in the end beam connection unit 1 on the top surface of the crane end beam, install and adjust the lower bracket 122 according to the height size of the end beam itself, so that the hook 13 is hooked on the lower surface of the crane end beam, and after ensuring that the lower bracket 122 is hung firmly, install the rotating bearing and the ratchet 31 on the support base 11, and assemble the lifting unit 2 in order and on the ground, and then assemble it with the ratchet 31; after the installation is completed, pull the lifting arm 21 so that the hook 221 is located directly above the disassembled wheel, start the lifting power device, and drive the drum to rotate , so as to lower the hook 221, pass the connecting wire rope through the hole of the wheel to form a connecting ring, and place the connecting ring on the hook 221, reverse the drum, lift the wheel to the set height, pull the lifting arm 21 to move the wheel to the outside of the railing, rotate the drum to make the wheel fall to the safe ground, disconnect the wheel from the hook 221, and complete the lifting operation of the old wheel; then, use the reverse operation to lift the new wheel from the ground position to the original wheel installation position of the crane, and install the new wheel at the set position of the crane to realize the replacement and maintenance of the wheel.

[0057] The vehicle maintenance method in this embodiment can greatly improve the maintenance efficiency. When replacing a wheel, six maintenance personnel are required and it takes three hours to complete. However, when replacing a wheel using this auxiliary maintenance mechanism and this vehicle maintenance method, only four maintenance personnel are required and it takes only two hours to complete. The construction work is safer, ensuring the integrity of wheel replacement and avoiding destructive disassembly. In addition, the auxiliary maintenance mechanism in this embodiment adopts a split combination form, which reduces the weight and is convenient for workers to carry when getting on and off the vehicle.

[0058] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0059] 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 art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A vehicle maintenance method, It is characterized in that The steps include: The end beam connection unit (1) is installed at a set position on the end beam of the traveling crane; the end beam connection unit (1) comprises a support base (11) and a tripod (12) connected to the support base (11); one end of the tripod (12) is connected to the support base (11), and the other end of the tripod (12) is provided with a hook (13); the support base (11) is located on the upper surface of the end beam, and the hook (13) hooks the lower surface of the end beam; The crane component to be inspected is hoisted to a set position using a hoisting unit (2) connected to the supporting base (11).

2. According to the vehicle maintenance method of claim 1, It is characterized in that The tripod (12) comprises an upper tripod (121) and a lower tripod (122); the upper end of the upper tripod (121) is fixedly connected to the support base (11); the lower end of the upper tripod (121) is detachably connected to the upper end of the lower tripod (122); and the lower end of the lower tripod (122) is provided with the hook (13); when the end beam connection unit (1) is installed on the end beam of the traveling vehicle, the support base (11) fixedly connected to the upper tripod (121) is first placed on the upper surface of the end beam, and then the lower tripod (122) is connected to the upper tripod (121).

3. According to the vehicle maintenance method of claim 2, It is characterized in that The upper tripod (121) is provided with a plurality of upper connection holes (123) spaced apart in the up-down direction, and the lower tripod (122) is provided with a lower connection hole (124); in the process of connecting the lower tripod (122) with the upper tripod (121), the height of the lower tripod (122) is adjusted until the matching relationship between the hook (13) and the lower surface of the end beam meets the set requirements and the lower connection hole (124) corresponds to one of the upper connection holes (123), and then bolts are inserted into the upper connection hole (123) and the lower connection hole (124) at the same height position to achieve the connection between the lower tripod (122) and the upper tripod (121).

4. The vehicle maintenance method according to claim 1, It is characterized in that The lifting unit (2) comprises a lifting swivel arm (21), one end of which is connected to the support base (11) via a rotating assembly (3), and the other end of the lifting swivel arm (21) is provided with a lifting connection piece (22), the lifting connection piece (22) can be raised and lowered, and the other end of the lifting swivel arm (21) can rotate relative to the support base (11); when the lifting unit (2) is used to lift the component to be repaired to a set position, the other end of the lifting swivel arm (21) drives the lifting connection piece (22) to rotate relative to the support base (11) until the lifting connection piece (22) is lowered and lowered. The connecting piece (22) is located directly above the component to be repaired, the lifting connecting piece (22) is lowered to a set position, and then the component to be repaired is connected to the lifting connecting piece (22), the lifting connecting piece (22) drives the component to be repaired to rise to the set position, and the other end of the lifting arm (21) drives the lifting connecting piece (22) and the component to be repaired to rotate until the component to be repaired moves to a set area, and the lifting connecting piece (22) is lowered until the component to be repaired is lowered to the set position, and the connection between the component to be repaired and the lifting connecting piece (22) is disconnected, so as to realize the transfer of the component to be repaired to the set position.

5. According to the vehicle maintenance method of claim 4, It is characterized in that The rotating assembly (3) comprises a ratchet (31) fixedly connected to the lifting swivel arm (21), a connecting plate (32) fixed on the supporting base (11), and a locking buckle (33) installed on the connecting plate (32), one end of the locking buckle (33) being hinged to the connecting plate (32) via a pin; during the rotation of the lifting swivel arm (21) relative to the supporting base (11), the ratchet (31) rotates along with the rotation of the lifting swivel arm (21), and when the other end of the lifting swivel arm (21) drives the lifting connecting piece (22) to rotate to a set position, the locking buckle (33) is moved until the locking buckle (33) is embedded between two gear teeth of the ratchet (31), and the locking buckle (33) restricts the ratchet (31) and the lifting swivel arm (21) from continuing to rotate.

6. An auxiliary maintenance mechanism for implementing the vehicle maintenance method according to claim 1, It is characterized in that The invention comprises an end beam connection unit (1) and a lifting unit (2); the end beam connection unit (1) comprises a support base (11) and a tripod (12); one end of the tripod (12) is connected to the support base (11); the other end of the tripod (12) is provided with a hook (13); and the lifting unit (2) is connected to the support base (11).

7. The auxiliary maintenance mechanism according to claim 6, It is characterized in that The tripod (12) comprises an upper tripod (121) and a lower tripod (122); the upper end of the upper tripod (121) is fixedly connected to the support base (11); the lower end of the upper tripod (121) is detachably connected to the upper end of the lower tripod (122); and the hook (13) is provided at the lower end of the lower tripod (122).

8. The auxiliary maintenance mechanism according to claim 7, It is characterized in that The lower tripod (122) is connected to the upper tripod (121) by bolts, and the upper tripod (121) is provided with a plurality of upper connection holes (123) spaced apart in the up-down direction, and the lower tripod (122) is provided with a lower connection hole (124), and the bolts are passed through the lower connection hole (124) and the upper connection hole (123).

9. The auxiliary maintenance mechanism according to claim 6, It is characterized in that The lifting unit (2) comprises a lifting tumbler (21), one end of the lifting tumbler (21) being connected to a support base (11) via a rotating assembly (3), the other end of the lifting tumbler (21) being provided with a lifting connection piece (22), the lifting connection piece (22) being capable of being raised and lowered, and the other end of the lifting tumbler (21) being capable of rotating relative to the support base (11).

10. The auxiliary maintenance mechanism according to claim 9, It is characterized in that The rotating assembly (3) comprises a ratchet (31) fixedly connected to the lifting arm (21), a connecting plate (32) fixed to the supporting base (11), and a locking buckle (33) mounted on the connecting plate (32), wherein one end of the locking buckle (33) is hinged to the connecting plate (32) via a pin.

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