Lifting appliance for lifting pantograph

Abstract

The lifting appliance comprises a lifting appliance main frame, a main lifting ring, a lifting hook and a lifting position adjusting plate, the lifting position adjusting plate is installed on the face, away from the ground, of the lifting appliance main frame, the lifting hook is installed on the face, close to the ground, of the lifting appliance main frame, and at least two lifting ring installation holes are formed in the lifting position adjusting plate. The main lifting ring is mounted on the lifting position adjusting plate through the lifting ring mounting hole, the main lifting ring is connected with lifting equipment, and the lifting hook is connected with a pantograph. Compared with the prior art, the pantograph hoisting device has the advantages that the position of the main hoisting ring can be adjusted, so that a pantograph can be stably hoisted, workers can conveniently carry out mounting operation on the top of a train, and the working efficiency and the safety of pantograph dismounting operation are greatly improved; the I-shaped lifting appliance main frame is adopted, so that the pantograph is stressed in a balanced manner, and the lifting process is more stable; and the fixed lifting ring and the universal lifting hook are matched for use, so that the safety can be improved.

Description

Technical Field

[0001] The utility model relates to a lifting device, in particular to a lifting device used for pantograph lifting. Background Art

[0002] The train pantograph is located on the top of the train. When the pantograph needs to be inspected and replaced, the operator will climb onto the train inspection platform, which is at the same height as the top of the train. The staff will use the cantilever crane installed on the inspection platform to install and disassemble the pantograph.

[0003] The existing hoisting method requires workers to use a sling through the ring on the pantograph to manually tie it, which is a cumbersome process. At the same time, because the 1500-volt catenary line is above the pantograph, the lifting space of the cantilever crane is limited. At the same time, because the space reserved for manual tying is sometimes not suitable, the pantograph is not hoisted high enough and cannot be smoothly moved sideways to the maintenance platform, causing workers to repeat operations and waste time.

[0004] Therefore, designing a hoisting device suitable for pantograph lifting and with a smooth lifting process is a technical problem that needs to be solved. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting device for pantograph lifting in order to overcome the defects of the prior art that the pantograph lifting is unchanged and unstable.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] According to one aspect of the utility model, a sling for lifting a pantograph is provided, which cooperates with a lifting device to lift the pantograph, and comprises a sling main frame, a main lifting ring, a hook and a lifting position adjustment plate. The lifting position adjustment plate is installed on a side of the sling main frame away from the ground, and the hook is installed on a side close to the ground. At least two lifting ring mounting holes are arranged on the lifting position adjustment plate. The main lifting ring is installed on the lifting position adjustment plate through the lifting ring mounting holes. The main lifting ring is connected to the lifting device, and the hook is connected to the pantograph.

[0008] As a preferred technical solution, the hook includes a fixed lifting ring and a universal lifting hook, one end of the fixed lifting ring is fixedly connected to the main frame of the sling, and the other end is connected to the universal lifting hook.

[0009] As a preferred technical solution, the sling also includes a lifting chain, and the fixed lifting ring and the universal hook are connected through the lifting chain.

[0010] As a preferred technical solution, the length of the lifting chain is adjustable.

[0011] As a preferred technical solution, the main frame of the sling is an I-shaped structure, including a first sling, a second sling and a third sling connected in sequence, the first sling and the third sling are parallel to each other, and the second sling is perpendicular to the first sling and the third sling.

[0012] As a preferred technical solution, one end of the second suspension rod is connected to the midpoint of the first suspension rod, and the other end is connected to the midpoint of the third suspension rod.

[0013] As a preferred technical solution, the lifting position adjustment plate is installed on the second suspension rod.

[0014] As a preferred technical solution, the eyelet mounting holes are arranged in an array along the direction of the second suspension rod.

[0015] As a preferred technical solution, there are four hooks in total, which are respectively installed at both ends of the first suspension rod and the third suspension rod.

[0016] As a preferred technical solution, ribs are installed between the first suspension rod and the second suspension rod, and between the second suspension rod and the third suspension rod.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1) The utility model is suitable for lifting the pantograph, adopts a lifting position adjustment plate, and the position of the main lifting ring is adjustable, so that the pantograph can be lifted stably, which is convenient for workers to install on the top of the train, greatly improving the work efficiency and the safety of the pantograph disassembly and assembly operation;

[0019] 2) The utility model adopts an I-shaped main frame of the lifting device, which is convenient for vertical lifting of the pantograph, so that the force on the pantograph is more balanced and the lifting process is more stable;

[0020] 3) The utility model adopts a fixed lifting ring and a universal hook for use in combination, which can increase safety. The universal hook is rotatable to adapt to lifting at different angles; an adjustable lifting chain is adopted to adapt to the high and low positions of the pantograph, which is convenient for lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a hoisting device used for pantograph hoisting in the utility model;

[0022] Figure 2 This is a schematic diagram of the state of the lifting pantograph of the utility model;

[0023] The numbers in the figure show:

[0024] 10. First lifting rod, 11. Second lifting rod, 12. Third lifting rod, 13. Rib plate, 2. Main lifting ring, 3. Universal hook, 4. Fixed lifting ring, 5. Lifting position adjustment plate, 50. Lifting ring mounting hole, 6. Lifting chain. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0026] like Figure 1 As shown, the utility model provides a lifting device for pantograph lifting, comprising a lifting device main frame, a main lifting ring 2, a universal hook 3, a fixed lifting ring 4, a lifting position adjustment plate 5 and a lifting chain 6.

[0027] The main frame of the sling includes a first sling 10, a second sling 11 and a third sling 12, which are connected in sequence to form an I-shaped structure, the first sling 10 and the third sling 12 are parallel to each other, the second sling 11 is perpendicular to the first and third slings 12, and the two ends of the second sling 11 are respectively connected to the midpoint of the first sling 10 and the midpoint of the third sling 12. Ribs 13 are installed between the first sling 10 and the second sling 11 and between the second sling 11 and the third sling 12 to enhance the stability of the main frame of the sling.

[0028] The lifting position adjustment plate 5 is installed on the second lifting rod 11 , and a plurality of lifting ring installation holes 50 are opened along the extending direction of the second lifting rod 11 .

[0029] The main lifting ring 2 is installed on the lifting position adjustment plate 5 through the lifting ring installation hole 50, and the lifting position can be adjusted through the lifting ring installation hole 50 installed by the main lifting ring 2 to make the lifting more stable. The lifting hook of the lifting equipment is connected to the main lifting ring 2.

[0030] There are four fixed lifting rings 4, which are fixed at both ends of the first suspension rod 10 and the third suspension rod 12 respectively. Each fixed lifting ring 4 is connected to the universal lifting ring through a lifting chain 6. The lifting chain 6 is adjusted in length according to the size of the pantograph. The universal lifting ring is rotatable, which can adapt to lifting rings at multiple angles and prevent the lifting chain 6 from being entangled. The lifting ring on the pantograph is hooked with the universal lifting ring.

[0031] The utility model is further introduced through the lifting process below:

[0032] like Figure 2As shown, the lifting device is lifted above the pantograph to be disassembled and assembled by connecting the main lifting ring 2 with the hook on the on-site lifting equipment. After it is lowered to the appropriate position, the universal hook 3 is connected to the lifting ring on the pantograph. After all the universal hooks 3 are connected to the pantograph lifting rings, the first lifting is carried out to observe whether the pantograph is balanced as a whole. If the pantograph is balanced as a whole, the lifting can continue. If the pantograph is tilted as a whole, adjust the position of the main lifting ring 2 on the lifting position adjustment plate 5 according to the tilt degree and direction of the pantograph, and lift it when it is adjusted to the appropriate position.

[0033] The utility model is provided with an I-shaped main frame structure of the lifting device according to the lifting structure of the pantograph, so as to facilitate the vertical lifting of the pantograph, make the pantograph force more balanced, and make the lifting process more stable. The anti-slip universal lifting ring and the pantograph lifting ring are used in combination to increase safety. A plurality of lifting ring mounting holes 50 are provided on the lifting position adjustment plate 5. Since the center of gravity positions of different pantographs are inconsistent, these holes are used to adjust the position of the main lifting ring 2 so that the lifting device can be lifted smoothly and reduce the damage of the pantograph caused by imbalance during the lifting process. In the actual operation process, the workers can quickly locate the lifting position and adjust the lifting position according to the actual force conditions of the pantograph. The balanced lifting also facilitates the workers' installation work on the top of the train, greatly improves the work efficiency, and also makes the disassembly and assembly of the pantograph safer.

[0034] The utility model is designed with a targeted lifting device according to the hoisting structure of the pantograph, which can lift the pantograph vertically. By using the on-site lifting equipment, the pantograph can be lifted in a narrow working space. The anti-drop universal lifting ring on the lifting device can be quickly buckled on the lifting ring on the pantograph, which is convenient for the operator to operate quickly. After adjusting the lifting point position, the lifting equipment can lift quickly. During the disassembly and assembly of the pantograph, the utility model can cooperate with the workers to complete the work well, eliminating the trouble of manual tying. Compared with the cumbersome operation of the existing operation, the pantograph lifting process is greatly simplified, the labor intensity is reduced, and the production efficiency is improved.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A lifting device for lifting a pantograph, used in conjunction with a lifting device to lift a pantograph, characterized in that: The sling comprises a sling main frame, a main lifting ring (2), a hook and a lifting position adjustment plate (5); the lifting position adjustment plate (5) is installed on the side of the sling main frame away from the ground, and the hook is installed on the side close to the ground; at least two lifting ring mounting holes (50) are arranged on the lifting position adjustment plate (5); the main lifting ring (2) is installed on the lifting position adjustment plate (5) through the lifting ring mounting holes (50); the main lifting ring (2) is connected to the lifting equipment, and the hook is connected to the pantograph.

2. A lifting device for pantograph lifting according to claim 1, characterized in that: The hook comprises a fixed lifting ring (4) and a universal lifting hook (3); one end of the fixed lifting ring (4) is fixedly connected to the main frame of the lifting device, and the other end is connected to the universal lifting hook (3).

3. A lifting device for pantograph lifting according to claim 2, characterized in that: The lifting device also includes a lifting chain (6), and the fixed lifting ring (4) and the universal lifting hook (3) are connected via the lifting chain (6).

4. A lifting device for pantograph lifting according to claim 3, characterized in that: The lifting chain (6) is a lifting chain (6) with adjustable length.

5. The lifting device for pantograph lifting according to claim 1, characterized in that: The main frame of the sling is an I-shaped structure, comprising a first sling rod (10), a second sling rod (11) and a third sling rod (12) connected in sequence, the first sling rod (10) and the third sling rod (12) are parallel to each other, and the second sling rod (11) is perpendicular to the first sling rod (10) and the third sling rod (12).

6. A lifting device for pantograph lifting according to claim 5, characterized in that: One end of the second suspension rod (11) is connected to the midpoint of the first suspension rod (10), and the other end is connected to the midpoint of the third suspension rod (12).

7. A lifting device for pantograph lifting according to claim 6, characterized in that: The lifting position adjustment plate (5) is installed on the second lifting rod (11).

8. A lifting device for pantograph lifting according to claim 7, characterized in that: The lifting ring mounting holes (50) are arranged in an array along the direction of the second lifting rod (11).

9. The lifting device for pantograph lifting according to claim 5, characterized in that: There are four hooks in total, which are respectively installed at two ends of the first suspension rod (10) and two ends of the third suspension rod (12).

10. A lifting device for pantograph lifting according to claim 5, characterized in that: Ribs (13) are installed between the first suspension rod (10) and the second suspension rod (11), and between the second suspension rod (11) and the third suspension rod (12).

Images