Special lifting appliance for diesel locomotive
By designing a special lifting tool for diesel locomotives, using Φ273×8mm seamless steel pipes and 6×37+FC steel wire ropes, the safety and efficiency issues of lifting GK1C and DF12 diesel locomotives were solved, achieving safe and efficient lifting operations.
Patent Information
- Application Number
- CN202520156792.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing cranes are unable to safely and efficiently lift GK1C and DF12 diesel locomotives, especially in the absence of bridge cranes, which poses problems with lifting safety and efficiency.
A special lifting device for diesel locomotives was designed, including an upper wire rope, a counterweight bar, and a lower wire rope. The counterweight bar is composed of a Φ273×8mm seamless steel pipe and lifting lugs made of Q235B material. The wire rope is a 6×37+FC wire rope, which is used to distribute the load and improve the lifting stability.
By using a 100T crane, a safe and stable lifting process was achieved, reducing the risk of accidents, improving lifting accuracy and efficiency, and avoiding dangers such as crane overloading and wire rope breakage.
Smart Images
Figure CN223674136U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hoisting machinery technical field, especially a kind of lifting appliance and method for hoisting GK1C type, DF12 type diesel locomotive. BACKGROUND
[0002] Cantilever crane is the crane that taking device is hung on the car of arm support or along arm support operation. It is mainly used for the lifting and moving of heavy objects, and plays an important role in many fields such as construction, port and industry. It has important significance for improving work efficiency, ensuring production safety and promoting economic development. For the lifting of diesel locomotive maintenance or moving transportation, it is usually hoisted by bridge crane in repair warehouse. If there is no warehouse and bridge crane, steam crane needs to be considered. Due to the size and hoisting particularity of diesel locomotive, such as GK1C type and DF12 type diesel locomotive, GK1C type diesel locomotive is in cuboid shape
total weight 92 tons: 74 tons of upper car body, 18 tons of lower car body (bogie)
[0003] The technical problem to be solved by the utility model is to provide a special lifting appliance for diesel locomotive, which can solve the safety and efficiency problems of GK1C type, DF12 type and other diesel locomotive hoisting operation.
[0004] In order to solve the above problems, the technical scheme of the utility model is as follows: the special lifting appliance for diesel locomotive includes upper steel wire rope, balance bar and lower steel wire rope; the balance bar includes balance bar main body, reinforcing rib and lifting lug; the lifting lug is welded at both ends of the balance bar main body, and each of the upper and lower lifting holes of the lifting lug is provided; the reinforcing rib is welded on the upper side of the balance bar main body, which plays the role of strengthening the strength of the balance bar main body; the upper steel wire rope is connected with the upper lifting hole of the lifting lug; the lower steel wire rope is connected with the lower lifting hole of the lifting lug.
[0005] In the above technical scheme, the more specific scheme is that the reinforcing rib is 10# channel steel.
[0006] Further, the balance bar main body is a seamless steel pipe with length of 3650mm, specification of Φ273x8mm and allowable stress of 130MPa.
[0007] Further, the lug material is Q235B, and the allowable stress is 160 MPa; the lug is 600 mm long, 210 mm wide, and 30 mm thick, and the diameter of the lug hole is 50 mm.
[0008] Further, the upper and lower steel wire ropes are 6x37+FC steel wire ropes with a diameter of 52 mm, a tensile strength of 1670 MPa, a breaking tension of 1330 KN, and a length of 6 m.
[0009] Compared with the prior art, the utility model has the following beneficial effects:
[0010] 1. The utility model selects two 100T cranes for hoisting, meets the hoisting operation requirement, and can avoid serious accidents such as crane failure or even collapse due to overload.
[0011] 2. The utility model selects a Φ273x8mm seamless steel pipe balance bar to help disperse the weight of the load, reduce the shaking and tilting of the hoisted object, make the whole hoisting process more stable and safe, effectively reduce the accident risk, and also improve the precision and efficiency of the hoisting operation.
[0012] 3. The utility model selects two pairs of L=6m steel wire ropes to better withstand the weight of the heavy object, avoid dangerous situations such as fracture during hoisting, and the flexibility and wear resistance of the steel wire ropes of this specification can well adapt to various complex hoisting environments, ensuring the smooth progress of the hoisting operation. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is the front view of the utility model;
[0014] Figure 2 is the side view of the utility model;
[0015] Figure 3 is the balance bar structure diagram of the utility model;
[0016] Figure 4 is the stress schematic diagram of the utility model.
[0017] The figure mark represents: 1, upper steel wire rope; 2, balance bar; 2-1, balance bar main body; 2-2, reinforcing rib; 2-3, lug; 3, lower steel wire rope; 4, internal combustion locomotive. DETAILED DESCRIPTION
[0018] The utility model will be further described below in combination with the drawings and examples:
[0019] Figure 1 、 Figure 2 and Figure 3The utility model provides a special lifting appliance of internal combustion engine car, including upper wire rope 1, balance bar 2 and lower wire rope 3. Balance bar 2 includes balance bar main body 2-1, reinforcing rib 2-2 and lifting lug 2-3. Balance bar main body 2-1 is the seamless steel pipe of long 3650mm, specification Phi 273x8mm, and allowable stress is 130MPa;Lifting lug 2-3 is made of Q235B, and lifting lug 2-3 allowable stress is 160MPa;Lifting lug 2-3 is welded in balance bar main body 2-1, namely the seamless steel pipe both ends, and lifting lug 2-3 is 600mm long, 210mm wide, 30mm thick, and there is a lifting hole with diameter 50mm in each upper and lower position;Reinforcing rib 2-2 is welded on the upside of balance bar main body 2-1, and reinforcing rib 2-2 adopts 10# channel steel, and plays the role of strengthening the strength of balance bar main body 2-1. Upper wire rope 1 is connected with the upper lifting hole of lifting lug 2-3;Lower wire rope 3 is connected with the lower lifting hole of lifting lug 2-3, and the bottom end is used for fixing internal combustion engine car 4 during use;Upper wire rope 1 and lower wire rope 3 select 6x37+FC wire rope, and the diameter is Phi 52mm, and the tensile strength is 1670MPa, and the breaking tension is 1330KN, and the length L=6m.
[0020] The GK1C type internal combustion engine car for hoisting in the embodiment is cuboid (total weight 92 tons: upper car body 74 tons, lower car body (bogie) 18 tons), and the size is about 14.9m long, 3.2m wide and 4.9m high, and the weight is about 72.5 tons. In order to ensure safety during transportation, the upper car body and the lower car body (bogie) of the internal combustion engine car are split and transported separately.
[0021] As shown in Figure 4 , it is a stress schematic diagram of the utility model.
[0022] Stress calculation: the stress angle alpha of the upper wire rope and the balance bar is 60 degrees, the weight G of the equipment and the balance bar and the lifting appliance is 74.5 tons. The distribution force Q distributed to both ends of the balance bar is 745KN / 2.
[0023] The stress of the upper wire rope: F=G / 4sin alpha=74.5t / 4sin 60°=21.507t
[0024] The pressure borne by the balance bar: P=Fxcos alpha=21.507txcos 60°=10.754t.
[0025] Selection of wire rope: according to the size of the equipment and the position of the lifting lug, two pairs of L=6m wire ropes are selected on the upper part of the balance bar, and the included angle between the two ropes is about 60 degrees, so the load borne by a single wire rope is:
[0026] Gp=G / 4xsina=74.5 / 4xsina=21.507t
[0027] In the formula, Gp is the load borne by a single wire rope;
[0028] G - equipment and balance bar, rigging weight 74.5t;
[0029] Alpha - steel wire rope and horizontal angle, calculated 60 °.
[0030] The 6*37+FC steel wire rope selected for hoisting in the embodiment has a diameter of 52mm, a tensile strength of 1670MPa, and a breaking tension of 1330KN, and can meet the hoisting requirements.
[0031] In the description of the utility model, it is to be explained that, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
Claims
1. A special lifting tool for internal combustion locomotives, characterized in that: It includes an upper wire rope (1), a balance bar (2), and a lower wire rope (3); the balance bar (2) includes a balance bar body (2-1), a reinforcing rib (2-2), and a lifting lug (2-3); the lifting lug (2-3) is welded to both ends of the balance bar body (2-1), and each lifting lug (2-3) has a lifting hole at the top and bottom; the reinforcing rib (2-2) is welded onto the balance bar body (2-1); the upper wire rope (1) is connected to the upper lifting hole of the lifting lug (2-3); the lower wire rope (3) is connected to the lower lifting hole of the lifting lug (2-3).
2. The special lifting device for internal combustion locomotives according to claim 1, characterized in that: The reinforcing rib (2-2) is a 10# channel steel.
3. The special lifting device for diesel locomotives according to claim 1 or 2, characterized in that: The main body (2-1) of the balance bar is a seamless steel pipe with a length of 3650mm and a specification of Φ273×8mm, and the allowable stress is 130MPa.
4. The special lifting device for internal combustion locomotives according to claim 3, characterized in that: The lifting lug (2-3) is made of Q235B material and has an allowable stress of 160MPa; the lifting lug (2-3) is 600 mm long, 210 mm wide, and 30 mm thick, and the diameter of the lifting hole is 50 mm.
5. The special lifting device for diesel locomotives according to claim 4, characterized in that: The upper wire rope (1) and lower wire rope (3) are made of 6×37+FC wire rope with a diameter of Ф52mm, a tensile strength of 1670MPa, a breaking strength of 1330KN, and a length of 6m for each rope.