Double-beam bridge crane for hoisting pipe fittings

Abstract

The utility model particularly relates to a double-beam bridge crane for hoisting pipe fittings, which comprises two main beams arranged at an interval, end beams arranged at the bottoms of two ends of the two main beams, rails arranged at the tops of the main beams, trolley frames running on the rails, a fixing plate mounted between the two trolley frames, and a hoisting mechanism mounted on the fixing plate, a steel wire rope of the hoisting mechanism is installed on a pulley of a pulley yoke, the pulley yoke is installed on a lifting appliance, the lifting appliance comprises a lifting appliance beam, a plurality of L-shaped lifting appliance frames are arranged on one side of the bottom of the lifting appliance beam at equal intervals in the length direction of the lifting appliance beam, and the vertical portions of the lifting appliance frames are fixedly connected to the bottom of the lifting appliance beam. A plurality of first hydraulic cylinders which are vertically arranged are arranged on the lifting appliance beam, the fixed ends of the first hydraulic cylinders are fixedly connected to the top of the lifting appliance beam, and the free ends of the first hydraulic cylinders vertically penetrate through the lifting appliance beam and correspond to the horizontal part of the lifting appliance frame. The free end of the first hydraulic cylinder is inserted into the inserting groove, and the limiting effect on the horizontal direction of the pipe fitting is achieved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a double-beam bridge crane for lifting pipe fittings. Background Technology

[0002] Cranes are mainly used for vertical lifting and horizontal transport of heavy objects. Different lifting tools can be used to lift different items. There are many types of lifting tools for pipes, such as electromagnetic lifting tools and lifting rings.

[0003] The prior art document CN218879245U discloses a double-girder crane for lifting tubular components. The crane uses an electromagnetic lifting device to lift the components. However, if the electromagnetic lifting device is disconnected, the electromagnetic force will not be present, which may cause the components to fall and create a safety hazard. Summary of the Invention

[0004] This utility model provides a double-beam bridge crane for lifting pipe fittings.

[0005] The technical solution of this utility model is implemented as follows: A double-girder bridge crane for lifting pipe fittings includes two main beams spaced apart. The bottom ends of the two main beams are end beams. A rail is provided on the top of the main beams. A trolley frame travels on the rail. A fixing plate is installed between the two trolley frames. A lifting mechanism is installed on the fixing plate. The wire rope of the lifting mechanism is installed on the pulley of the pulley frame. The pulley frame is installed on the lifting device. The lifting device includes a lifting beam. Several L-shaped lifting frames are evenly spaced along the length of one side of the bottom of the lifting beam. The vertical part of the lifting frame is fixedly connected to the bottom of the lifting beam. Several vertically arranged hydraulic cylinders are provided on the lifting beam. The fixed end of the hydraulic cylinder is fixedly connected to the top of the lifting beam. The free end of the hydraulic cylinder passes vertically through the lifting beam and corresponds to the horizontal part of the lifting frame.

[0006] A slot is provided at the top of the horizontal part of the lifting beam, and the free end of hydraulic cylinder one is inserted into the slot.

[0007] Two sets of clamping devices are symmetrically arranged on both sides of the top of the lifting beam along its length.

[0008] The clamping device includes a second hydraulic cylinder. The fixed end of the second hydraulic cylinder is fixedly connected to the middle of the top of the lifting beam. The free end of the second hydraulic cylinder passes through the lifting beam. A horizontally arranged clamping plate is fixedly connected to the bottom of the free end of the second hydraulic cylinder. The clamping plate is located above the horizontal part of the lifting frame.

[0009] The bottom of the clamping plate is a protective layer made of rubber.

[0010] Two symmetrically arranged telescopic rods are installed between the bottom of the fixed plate and the top of the lifting beam. The fixed end of the telescopic rod is hinged to the bottom of the fixed plate, and the free end of the telescopic rod is hinged to the top of the lifting beam.

[0011] The free part of the telescopic rod is symmetrically provided with guide rails on the outside, and the fixed part of the telescopic rod is symmetrically provided with guide grooves on the inside, with the guide rails and guide grooves cooperating.

[0012] The technical solution of this utility model has the following positive effects: a lifting frame is installed at the bottom of the lifting beam. The lifting frame has an L-shaped structure and can hold several pipe fittings. The free end of the first hydraulic cylinder is inserted into the slot to limit the horizontal direction of the pipe fittings. The clamping device fixes the vertical direction of the pipe fittings through the second hydraulic cylinder. This ensures that the pipe fittings are safer during lifting and are less likely to move around. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a side view showing the connection between the lifting beam, the lifting frame, and the clamping device.

[0015] Figure 3 This is a top view of the telescopic pole.

[0016] Reference numerals in the attached drawings: 1. Main beam; 2. Trolley frame; 3. Fixing plate; 4. Lifting mechanism; 5. Pulley; 6. Lifting beam; 7. Lifting frame; 8. Hydraulic cylinder one; 9. Slot; 10. Hydraulic cylinder two; 11. Clamping plate; 12. Telescopic rod; 13. Pipe fitting; 14. Protective layer; 15. Guide rail; 16. Guide groove; 17. End beam. Detailed Implementation

[0017] like Figure 1-3 As shown, a double-girder bridge crane for lifting pipe fittings includes two spaced main beams 1. The bottom of both ends of the two main beams 1 are end beams 17. A rail is provided on the top of the main beams 1, and a trolley frame 2 travels on the rail. A fixing plate 3 is installed between the two trolley frames 2. A lifting mechanism 4 is installed on the fixing plate 3. The wire rope of the lifting mechanism 4 is installed on the pulley 5 of the pulley frame. The pulley frame is installed on the lifting device. The lifting device includes a lifting beam 6. Several L-shaped lifting frames 7 are evenly spaced along the length of one side of the bottom of the lifting beam 6. The vertical part of the lifting frame 7 is fixedly connected to the bottom of the lifting beam 6. Several vertically arranged hydraulic cylinders 8 are provided on the lifting beam 6 and located on the side of the lifting frame 7. The fixed end of the hydraulic cylinder 8 is fixedly connected to the top of the lifting beam 6, and the free end of the hydraulic cylinder 8 is vertically inserted through the lifting beam 6. The hydraulic cylinders 8 correspond one-to-one with the lifting frames 7.

[0018] Specifically, the pipe fittings 13 that need to be hoisted are placed on the top surface of the horizontal part of the lifting frame 7. Multiple pipe fittings can be placed. After placement, the free end of the hydraulic cylinder 8 descends and blocks the side of the pipe fittings 13, thereby preventing the pipe fittings from falling from the opening of the lifting frame 7 and playing a role in limiting protection.

[0019] The top of the horizontal part of the lifting frame 7 is provided with a slot 9, into which the free end of the hydraulic cylinder 8 is inserted; specifically, the slot 9 allows the free end of the hydraulic cylinder 8 to enter.

[0020] A clamping device is provided on the lifting beam 6 and above the horizontal part of the lifting frame 7; the clamping device includes a hydraulic cylinder 2 10, the fixed end of the hydraulic cylinder 2 10 is fixedly connected to the top of the lifting beam 6, the free end of the hydraulic cylinder 2 10 passes through the lifting beam 6, and a horizontally arranged clamping plate 11 is fixedly connected to the bottom of the free end of the hydraulic cylinder 2 10; the bottom of the clamping plate 11 is a protective layer 14, which is made of rubber.

[0021] Specifically, after placing a row of pipe fittings 13, the free end of the hydraulic cylinder 2 10 is activated and moves downward, causing the clamping plate 11 to move downward, clamping the row of pipe fittings 13. This prevents the pipe fittings 13 from moving during hoisting. The protective layer is made of soft rubber, and the clamping will not cause pressure damage to the pipe fittings.

[0022] Two symmetrically arranged telescopic rods 12 are installed between the bottom of the fixed plate 3 and the top of the lifting beam 6. The fixed end of the telescopic rod 12 is fixedly connected to the bottom of the fixed plate 3. Specifically, when the lifting mechanism 4 drives the lifting beam 6 to move up and down, the free part of the telescopic rod 12 moves up and down accordingly, which can reduce the swing of the lifting beam 6 and improve safety.

[0023] The free part of the telescopic rod 12 is symmetrically provided with guide rails 15 on the outside, and the fixed part of the telescopic rod 12 is symmetrically provided with guide grooves 16 on the inside. The guide rails 15 and guide grooves 16 cooperate with each other. Specifically, when the free part of the telescopic rod 12 moves up and down, the guide rails 15 and guide grooves 16 play a guiding role.

[0024] Work process: The pipe fittings to be hoisted are placed on the horizontal part of the hoisting frame 7. Multiple fittings can be placed according to their diameter. For thinner pipe fittings 13, such as... Figure 2 As shown, multiple rows can be placed, with multiple pipes placed in each row. The hydraulic cylinder 8 acts as a limit for the pipes, and the clamping device clamps the pipes in their upper and lower positions.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-girder bridge crane for lifting pipe fittings, comprising two spaced-apart main beams, the bottom ends of the two main beams being end beams, a rail being provided on the top of the main beams, a trolley frame traveling on the rail, a fixed plate being installed between the two trolley frames, a lifting mechanism being installed on the fixed plate, the wire rope of the lifting mechanism being installed on a pulley frame, the pulley frame being installed on a lifting device, characterized in that: The lifting device includes a lifting beam. Several L-shaped lifting frames are evenly spaced along the length of one side of the bottom of the lifting beam. The vertical part of the lifting frame is fixedly connected to the bottom of the lifting beam. Several vertically arranged hydraulic cylinders are installed on the lifting beam. The fixed end of the hydraulic cylinder is fixedly connected to the top of the lifting beam, and the free end of the hydraulic cylinder passes vertically through the lifting beam and corresponds to the horizontal part of the lifting frame.

2. A twin beam bridge crane for pipe handling according to claim 1, characterized in that: A slot is provided at the top of the horizontal part of the lifting beam, and the free end of hydraulic cylinder one is inserted into the slot.

3. A double-girder bridge crane for pipe lifting according to claim 1, characterized in that: Two sets of clamping devices are symmetrically arranged on both sides of the top of the lifting beam along its length.

4. A twin beam bridge crane for lifting pipe lengths as claimed in claim 3, characterised in that: The clamping device includes a second hydraulic cylinder. The fixed end of the second hydraulic cylinder is fixedly connected to the middle of the top of the lifting beam. The free end of the second hydraulic cylinder passes through the lifting beam. A horizontally arranged clamping plate is fixedly connected to the bottom of the free end of the second hydraulic cylinder. The clamping plate is located above the horizontal part of the lifting frame.

5. A twin beam bridge crane for pipe handling according to claim 3, characterised in that: The bottom of the clamping plate is a protective layer made of rubber.

6. A twin beam bridge crane for pipe handling according to claim 3, characterised in that: Two symmetrically arranged telescopic rods are installed between the bottom of the fixed plate and the top of the lifting beam. The fixed end of the telescopic rod is hinged to the bottom of the fixed plate, and the free end of the telescopic rod is hinged to the top of the lifting beam.

7. A twin beam bridge crane for pipe handling according to claim 3, characterised in that: The free part of the telescopic rod is symmetrically provided with guide rails on the outside, and the fixed part of the telescopic rod is symmetrically provided with guide grooves on the inside, with the guide rails and guide grooves cooperating.

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