Rail bridge type double-beam crane

Abstract

The utility model is specifically related to a rail passing bridge type double-beam crane, including the support beam of vertical setting, the both sides fixed connection of support beam have end beam, the end beam all have crane body that travels, every crane body includes two interval settings of big frame, the top fixed connection of two big frame between main girder is two parallel to each other, the bottom fixed connection of every main girder has a plurality of vertical settings and parallel to each other's connecting beam, the opposite two sides of connecting beam are all fixed connection trolley track, the outside side of the adjacent two connecting beams of end part is provided with horizontal support, and the positioning device is arranged between the adjacent two horizontal supports, and the switch bump block collides with the limit switch, thereby limiting the telescopic distance of electric push rod.

Description

Technical Field

[0001] This utility model relates to the field of rail-mounted cranes, specifically to a rail-mounted bridge-type double-girder crane. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range; it is also called an overhead crane, gantry crane, or hoist. In some large manufacturing enterprises, cranes need to achieve track crossing, that is, the trolley mechanism needs to move from the track of one main beam to the track of another main beam. This requires the two main beams to move to the same position, the two tracks to align, and then the movement can be achieved. During the movement, the two tracks must remain stationary to ensure smooth track crossing. Utility Model Content

[0003] This utility model provides a double-beam crane with a rail-mounted bridge.

[0004] The technical solution of this utility model is implemented as follows: A double-girder crane with rail overpass includes a vertically arranged support beam. End beams are fixedly connected to both sides of the support beam. Crane bodies travel on the end beams. Each crane body includes two spaced-apart trolley frames. Two parallel main beams are fixedly connected to the top between the two trolley frames. Several vertically arranged and parallel connecting beams are fixedly connected to the bottom of each main beam. Trolley tracks are fixedly connected to the two opposite sides of the connecting beams. Horizontal supports are provided on the outer sides of two adjacent connecting beams at the ends. A positioning device is provided between two adjacent horizontal supports. The positioning device includes an electric push rod and a positioning plate. The electric push rod and the positioning plate are respectively located on the top of the two horizontal supports. The fixed end of the electric push rod is installed on an electric push rod seat, which is fixedly connected to the top of the horizontal support. The horizontal supports are fixedly connected to the outer sides of two adjacent connecting beams. A positioning rod is fixedly connected to the free end of the electric push rod. A support plate is fixedly connected to the side of the electric push rod and located on the top of the horizontal support. The positioning rod passes horizontally through the support plate.

[0005] The trolley track is fixedly connected to the top of the horizontal beam, and the horizontal beam is fixedly connected to the inside of the connecting beam.

[0006] The positioning rod is externally fixedly connected to a switch stop block, which collides with the limit switch. The limit switch is mounted on a switch mounting base, which is fixedly connected to the top of the horizontal bracket. There are two limit switches, spaced apart at the top of the horizontal bracket.

[0007] The switch block is fixed on the retaining ring, and the retaining ring is fixedly fitted onto the outside of the positioning rod.

[0008] A connecting rod is fixedly connected to the upper part between two opposing connecting beams.

[0009] The technical solution of this utility model has the following positive effects: When it is necessary to cross the rails, the two rails are fixed by the cooperation of the electric push rod and the positioning plate. The end of the electric push rod is connected to the positioning rod, and a switch block is installed on the positioning rod. The switch block collides with the limit switch, thereby limiting the extension distance of the electric push rod. Attached Figure Description

[0010] Figure 1 This is the front view of the present invention.

[0011] Figure 2 This is a side view of the present invention.

[0012] Figure 3 for Figure 1 A magnified structural diagram of point A in the middle.

[0013] Figure 4 This is a top view showing the connection between the electric linear actuator and its mounting base.

[0014] Reference numerals in the attached diagram: 1. Support beam; 2. End beam; 3. Main frame; 4. Main beam; 5. Connecting beam; 6. Trolley track; 7. Horizontal support; 8. Electric push rod; 9. Positioning plate; 10. Electric push rod seat; 11. Positioning rod; 12. Support plate; 13. Horizontal beam; 14. Switch stop block; 15. Limit switch; 16. Switch mounting base; 17. Connecting rod; 18. Fixing ring. Detailed Implementation

[0015] like Figure 1-4 As shown, a double-girder crane with a rail-mounted bridge includes a vertically arranged support beam 1. End beams 2 are fixedly connected to both sides of the support beam 1. Crane bodies travel on the end beams 2. Each crane body includes two spaced-apart trolley frames 3. Two parallel main beams 4 are fixedly connected to the top between the two main beams 3. Several vertically arranged and parallel connecting beams 5 are fixedly connected to the bottom of each main beam 4. Trolley tracks 6 are fixedly connected to the two opposite sides of the connecting beams 5. Horizontal supports 7 are provided on the outer sides of two adjacent connecting beams 5 at the ends. A positioning device is provided between two adjacent horizontal supports 7. The positioning device includes an electric push rod 8 and a positioning plate 9. The electric push rod 8 and the positioning plate 9 are respectively located on the top of the two horizontal supports 7. The fixed end of the electric push rod 8 is installed on an electric push rod seat 10. The electric push rod seat 10 is fixedly connected to the top of the horizontal support 7. The horizontal support 7 is fixedly connected to the outer sides of two adjacent connecting beams 5. A positioning rod 11 is fixedly connected to the free end of the electric push rod 8.

[0016] Specifically, such as Figure 1As shown, the main frames of the two crane bodies can move back and forth along the end beam 2. The crane trolley travels on the trolley track 6. The crane trolley needs to travel from the right crane body to the left crane body, that is, from the right trolley track 6 to the left trolley track. First, the two trolley tracks 6 need to be aligned. The main frames 3 of the two crane bodies move back and forth along the end beam 2 to the same position. The electric push rod 8 is activated. The free end of the electric push rod 8 moves to the left and inserts into the positioning plate 9 to fix the trolley tracks 6 of the two crane bodies, thereby preventing displacement.

[0017] A support plate 12 is fixedly connected to the side of the electric push rod 8 and the top of the horizontal bracket 7, and the positioning rod 11 passes horizontally through the support plate 12; the support plate 12 can support the positioning rod 11.

[0018] The trolley track 6 is fixedly connected to the top of the horizontal beam 13, and the horizontal beam 13 is fixedly connected to the inside of the connecting beam 5.

[0019] A switch stop block 14 is fixedly connected to the outside of the positioning rod 11. The switch stop block 14 collides with the limit switch 15. The limit switch 15 is mounted on the switch mounting base 16, which is fixedly connected to the top of the horizontal bracket 7. There are two limit switches 15, which are spaced apart on the top of the horizontal bracket 7. Specifically, when the free end of the electric push rod 8 extends to the left and retracts to the right, the switch stop block 14 will collide with the limit switch 15, thereby limiting the extension and retraction position.

[0020] The switch block 14 is fixed on the fixing ring 18, and the fixing ring 18 is fixedly fitted on the outside of the positioning rod 11; specifically, the switch block 14 is set on the positioning rod 11 through the fixing ring 18.

[0021] A connecting rod 17 is fixedly connected to the upper part between the two opposing connecting beams 5.

[0022] 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 crane with a rail-mounted bridge, comprising a vertically arranged support beam, end beams fixedly connected to both sides of the support beam, a crane body traveling on each end beam, each crane body comprising two spaced-apart main frames, and two parallel main beams fixedly connected to the top between the two main frames, characterized in that: Each main beam has several vertically arranged and parallel connecting beams fixedly connected to its bottom. Trolley tracks are fixedly connected to the two opposite sides of each connecting beam. Horizontal supports are set on the outer sides of two adjacent connecting beams at the ends. A positioning device is set between two adjacent horizontal supports. The positioning device includes an electric push rod and a positioning plate. The electric push rod and the positioning plate are respectively located on the top of the two horizontal supports. The fixed end of the electric push rod is installed on the electric push rod seat, which is fixedly connected to the top of the horizontal support. The horizontal support is fixedly connected to the outer sides of two adjacent connecting beams. A positioning rod is fixedly connected to the free end of the electric push rod. A support plate is fixedly connected to the side of the electric push rod and the top of the horizontal support. The positioning rod passes horizontally through the support plate.

2. The double-girder crane with rail-mounted bridge as described in claim 1, characterized in that: The trolley track is fixedly connected to the top of the horizontal beam, and the horizontal beam is fixedly connected to the inside of the connecting beam.

3. A double-girder crane with a rail-mounted bridge as described in claim 1, characterized in that: The positioning rod is externally fixedly connected to a switch block, which collides with the limit switch. The limit switch is mounted on a switch mounting base, which is fixedly connected to the top of the horizontal bracket.

4. A double-girder crane with a rail-mounted bridge as described in claim 3, characterized in that: There are two limit switches, which are spaced apart at the top of the horizontal support.

5. A double-girder crane with a rail-mounted bridge as described in claim 3, characterized in that: The switch block is fixed on the retaining ring, and the retaining ring is fixedly fitted onto the outside of the positioning rod.

6. A double-girder crane with a rail-mounted bridge as described in claim 3, characterized in that: A connecting rod is fixedly connected to the upper part between two opposing connecting beams.

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