Crane rail crossing locking device

Abstract

The invention discloses a crane rail crossing locking device which comprises a rotary rail, a fixed rail, a driving device, a guide lock pin and a lock pin catcher, the butt joint end of the rotary rail and the butt joint end of the fixed rail are arranged to be of a beveled structure in a matched mode, the driving device is fixedly installed on the rotary rail, and the lock pin catcher is fixedly installed on the fixed rail. The guide lock pin is fixedly installed at the execution end of the driving device, and the guide lock pin is pushed into the lock pin catcher to lock the rotary rail and the fixed rail which are in butt joint. The device can realize the functions of locking the track and stopping at the same time through a mechanical structure in the occasions of rotary butt joint and movable butt joint of hoisting equipment. When the two rails need to be in butt joint, radial adjustment and axial adjustment are conducted on the rotary rail and the fixed rail, the alignment locking precision of the two rails is improved, and it is guaranteed that a carrying trolley on the rails can safely pass.

Description

Technical Field

[0001] This invention belongs to the field of crane machinery and equipment, and in particular relates to a crane rail locking device. Background Technology

[0002] A rail-crossing crane is a special lifting device suspended from rails or steel beams, characterized by modular design, multi-point support, and the ability to operate across rails. Currently, there are no very good methods for locking and opening the two connected rails, or for stopping the trolley on the rail after it is disconnected from the rails, and the safety is not high. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a crane track locking device that can lock the track and stop the transport trolley.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a crane overrail locking device, comprising a rotating rail, a fixed rail, a drive device, a guide locking pin, and a locking pin catcher. The docking ends of the rotating rail and the fixed rail are configured with a beveled structure. The drive device is fixedly installed on the rotating rail, the locking pin catcher is fixedly installed on the fixed rail, and the guide locking pin is fixedly installed on the execution end of the drive device. The guide locking pin is pushed into the locking pin catcher to lock the docked rotating rail and the fixed rail.

[0005] Preferably, the system also includes a radial pad, a track ramp, a guide wheel, and a wheel bracket. The radial pad is fixedly installed at the end of the fixed track. The track ramp and the locking pin catcher are both fixedly installed on the radial pad. The wheel bracket is fixedly installed at the end of the rotating track. The guide wheel is rotatably installed on the wheel bracket. When the rotating track and the fixed track are connected, the guide wheel is located on the track ramp.

[0006] Preferably, a first connector is fixedly installed on the rotating track, a guide pin is slidably installed inside the first connector, a roller is rotatably installed on the outer end of the guide pin, the inlet end of the pin catcher is set as a flared structure, and there is a 2-3mm gap between the roller and the inner wall of the locking end of the pin catcher.

[0007] Preferably, the system also includes a stop lifting assembly, which consists of a first stop, a second stop, a first spring pin, a pin, and a second spring pin. The first stop and the second stop are rotatably mounted on the rotary track and the fixed track, respectively. The bushing of the first spring pin is fixedly installed on the first connecting member. The right end of the shaft of the first spring pin is fixedly connected to the guide lock pin through the first transmission plate. The left end of the shaft of the first spring pin is fixedly installed with a first lifting rod for lifting the first stop. A first ear plate is fixedly installed on the fixed track, the bushing of the second spring pin is fixedly fixed on the first ear plate, the left end of the shaft of the second spring pin is fixedly installed on the second transmission plate, and a second lifting rod for lifting the second stop is fixedly installed on the second transmission plate. A second ear plate is also fixedly installed on the rotating track. The pin is slidably installed in the second ear plate. The right end of the pin is fixedly connected to the left end of the shaft of the first spring pin through the third transmission plate. The pin can push the shaft of the second spring pin to move to the left.

[0008] Preferably, the drive device is configured as an electric cylinder, a hydraulic telescopic cylinder, or a motor reducer.

[0009] Preferably, the pin is coaxially arranged with the second spring pin, and the right end of the pin is configured as a tapered structure that can be embedded into the bushing of the second spring pin.

[0010] Preferably, a first stop block is fixedly installed on the lower part of the first stop, and a second stop block is fixedly installed on the lower part of the second stop.

[0011] Compared with the prior art, the advantages of the present invention are: This device, through its mechanical structure, can simultaneously lock the rails and stop the movement of lifting equipment during rotational and mobile docking. It is used for handling and lifting operations required during aircraft engine maintenance within factory buildings. Based on factory layout and space constraints, it is a crane structure with a rotatable rail system built within a designated area. The advantages of a rotatable rail system include space saving and the ability to rotate the engine axially within a certain area. Rail docking enables multi-station transport of heavy objects, saving manpower, material resources, and financial resources.

[0012] When two tracks need to be aligned, radial and axial adjustments are made to the rotating and fixed tracks to improve the alignment and locking accuracy, ensuring the safe passage of the transport trolley on the tracks. When the two tracks are unlocked, the first and second spring pins respectively restrict the rotation of the first and second stops. The rotation of the first and second stops blocks the transport trolley, preventing it from running off the tracks and causing an accident. Attached Figure Description

[0013] The invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a perspective view of the invention from the left side.

[0015] Figure 2 This is a perspective view of the invention from the right side.

[0016] Figure 3 This is the front view of the present invention.

[0017] Figure 4This is a 3D view of the installation location of the track ramp plate.

[0018] Figure 5 It is a top view of a rotating track and a fixed track oblique-cut structure.

[0019] Figure 6 This is a 3D view of the stop lifting component. Detailed Implementation

[0020] The present invention will now be described in detail with reference to specific embodiments: like Figures 1 to 6 The crane overrail locking device shown includes a rotating rail 1, a fixed rail 2, a drive device 3, a guide locking pin 4, and a locking pin catcher 81. The docking ends of the rotating rail 1 and the fixed rail 2 are configured with a beveled structure. The drive device 3 is fixedly installed on the rotating rail 1, the locking pin catcher 81 is fixedly installed on the fixed rail 2, and the guide locking pin 4 is fixedly installed on the actuating end of the drive device 3. The guide locking pin 4 is pushed into the locking pin catcher 81 to lock the docked rotating rail 1 and the fixed rail 2.

[0021] It also includes a radial pad 8, a track ramp 9, a guide wheel 91, and a wheel bracket 92. During the docking process, the guide wheel 91 enters the plane section of the track ramp 9 through the ramp. The track ramp 9 and the wheel bracket 92 are both set to correspond to the oblique cut structure at the docking end of the rotating track 1 and the fixed track 2, so that the guide wheel 91 is always on the track ramp 9 during the movement. The radial pad 8 is fixedly installed at the end of the fixed track 2. The track ramp 9 and the locking pin catcher 81 are both fixedly installed on the radial pad 8. The track ramp 9 is fixedly installed on the top surface of the radial pad 8, and the locking pin catcher 81 is fixedly installed on the bottom surface of the radial pad 8. The wheel bracket 92 is fixedly installed at the end of the rotating track 1, and the guide wheel 91 is rotatably installed on the wheel bracket 92. When the rotating track 1 and the fixed track 2 are docked, the guide wheel 91 is located on the track ramp 9. Radial adjustment is achieved through the guide wheel 91 via the track ramp 9, so that the rotating track 1 and the fixed track 2 are aligned in the vertical direction.

[0022] A first connector 40 is fixedly installed on the rotating track 1, and a guide sleeve is fixedly installed on the first connector 40. The guide locking pin 4 is slidably installed in the guide sleeve to improve the straightness of the guide locking pin 4 when moving axially. A roller 41 is rotatably installed on the outer end of the guide locking pin 4. The inlet end of the locking pin catcher 81 is set as a flared structure. The flared structure guides the roller 41 as it is pushed into the locking pin catcher 81. The flared end of the right end of the locking pin catcher 81 also serves as a guide. The left end of the locking pin catcher 81 is a locking section that cooperates with the roller 41. There is a 2.5mm gap between the roller 41 and the inner wall of the locking end section of the locking pin catcher 81.

[0023] It also includes a stop lifting assembly, which consists of a first stop 11, a second stop 21, a first spring pin 5, a pin 6, and a second spring pin 7. The first stop 11 and the second stop 21 are respectively rotatably mounted on the rotating track 1 and the fixed track 2. The bushing of the first spring pin 5 is fixedly installed on the first connecting piece 40. The right end of the shaft of the first spring pin 5 is fixedly connected to the guide lock pin 4 through the first transmission plate 51. The left end of the shaft of the first spring pin 5 is fixedly installed with the first lifting rod 52. The first lifting rod 52 is slidably placed in the elongated hole of the first stop 11. The elongated hole is a longitudinal elongated hole structure. The fixed track 2 is fixedly installed with a first ear plate 70, the bushing of the second spring pin 7 is fixed on the first ear plate 70, the left end of the shaft of the second spring pin 7 is fixedly installed with a second transmission plate 72, the second transmission plate 72 is fixedly installed with a second lifting rod 73, the second lifting rod 73 is slidably placed in the elongated hole of the second stop 21, and the elongated hole is a longitudinal elongated hole structure; A second ear plate 61 is also fixedly installed on the rotating track 1. The pin 6 is slidably installed in the second ear plate 61. The right end of the pin 6 is fixedly connected to the left end of the shaft of the first spring pin 5 through the third transmission plate 60. The pin 6 can push the shaft of the second spring pin 7 to move to the left. Working principle of the stop lifting assembly: When the first spring pin 5 and the second spring pin 7 are in a non-loaded state, the first stop 11 and the second stop 21 return to the vertical position. When the transport trolley is located on the rotating track 1 or the fixed track 2, the transport trolley cannot move its shaft due to the elastic force of the first spring pin 5 and the second spring pin 7. Therefore, the first stop 11 and the second stop 21 cannot be lifted. The first stop 11 and the second stop 21 serve to limit the transport trolley to prevent it from running off the track and causing an accident.

[0024] The drive device 3 is configured as an electric cylinder, a hydraulic telescopic cylinder, or a motor reducer. Taking an electric cylinder as an example, a bearing seat 31 is fixedly installed on the rotating track 1, and a cylinder body joint 33 is fixedly installed on the bearing seat 31. The cylinder body of the electric cylinder is installed on the cylinder body joint 33. A U-shaped part 32 is installed on the actuator rod of the electric cylinder, and a pin is fixedly installed inside the U-shaped part 32. The right end of the guide locking pin 4 is provided with a horizontal and longitudinally oriented elongated hole. The elongated hole at the right end of the guide locking pin 4 is sleeved and installed on the pin of the U-shaped part 32. This installation method can reduce the requirement for coaxial accuracy between the guide locking pin 4 and the actuator rod of the electric cylinder after installation.

[0025] The pin 6 is coaxially arranged with the second spring pin 7. The right end of the pin 6 is set as a tapered structure that can be embedded in the bushing of the second spring pin 7 to improve the stability of the pin 6 when applying a loading force to the second spring pin 7.

[0026] The first stop 11 has a first stop block 111 fixedly installed at its lower part, and the second stop 21 has a second stop block 211 fixedly installed at its lower part. The first stop block 111 and the second stop 21 can better limit the contact of the transport trolley, increase the contact area with the transport trolley, and avoid impact damage.

[0027] When the rotating track 1 and the fixed track 2 are connected, radial adjustment is achieved by the guide wheel 91 above the rotating track 1 via the track ramp 9 of the fixed track 2. Rotation stops when the rotating track 1 and the fixed track 2 are aligned in the same axis, and the drive device 1 starts operating. The drive device 1 drives the guide locking pin 4 forward to the locking pin catcher 81. The roller 41 at the left end of the guide locking pin 4 passes through the flared mechanism of the locking pin catcher 81 for axial adjustment. The roller 41 at the left end of the guide locking pin 4 is pushed to the locking section of the locking pin catcher 81, completing the track locking. During the locking process, the guide locking pin 4 pushes the shaft of the first spring pin 5 to move to the left, and the first lifting rod 52 on the shaft of the first spring pin 5 pushes the first stop 11 to rotate counterclockwise and lift it up. When the shaft of the first spring pin 5 moves to the left, it simultaneously drives the third transmission plate 60 and the pin 6 to move to the left. The pin 6 pushes the shaft of the second spring pin 7 to overcome the spring force and move to the left. The second transmission plate 72 and the second lifting rod 73, which are fixed on the shaft of the second spring pin 7, simultaneously push the second stop 21 to the left and rotate counterclockwise to lift it up. At this time, the transport trolley can pass through the track where the docking and locking are completed.

Claims

1. A crane rail locking device, characterized in that: It includes a rotating track (1), a fixed track (2), a drive device (3), a guide pin (4), and a pin catcher (81). The docking ends of the rotating track (1) and the fixed track (2) are configured with a beveled structure. The drive device (3) is fixedly installed on the rotating track (1), the pin catcher (81) is fixedly installed on the fixed track (2), and the guide pin (4) is fixedly installed on the execution end of the drive device (3). The guide pin (4) is pushed into the pin catcher (81) to lock the docked rotating track (1) and fixed track (2).

2. The crane rail locking device according to claim 1, characterized in that: It also includes a radial pad (8), a track ramp (9), a guide wheel (91), and a wheel bracket (92). The radial pad (8) is fixedly installed at the end of the fixed track (2). The track ramp (9) and the locking pin catcher (81) are both fixedly installed on the radial pad (8). The wheel bracket (92) is fixedly installed at the end of the rotating track (1). The guide wheel (91) is rotatably installed on the wheel bracket (92). When the rotating track (1) and the fixed track (2) are connected, the guide wheel (91) is located on the track ramp (9).

3. The crane rail locking device according to claim 2, characterized in that: A first connector (40) is fixedly installed on the rotating track (1). A guide lock pin (4) is slidably installed inside the first connector (40). A roller (41) is rotatably installed on the outer end of the guide lock pin (4). The inlet end of the lock pin catcher (81) is set as a flared structure. There is a gap of 2-3mm between the roller (41) and the inner wall of the locking end of the lock pin catcher (81).

4. The crane rail locking device according to claim 3, characterized in that: It also includes a stop lifting assembly, which consists of a first stop (11), a second stop (21), a first spring pin (5), a pin (6), and a second spring pin (7). The first stop (11) and the second stop (21) are rotatably mounted on the rotating track (1) and the fixed track (2), respectively. Both the first stop (11) and the second stop (21) are provided with elongated holes. The bushing of the first spring pin (5) is fixedly installed on the first connector (40). The right end of the shaft of the first spring pin (5) is fixedly connected to the guide lock pin (4) through the first transmission plate (51). The left end of the shaft of the first spring pin (5) is fixedly installed with the first lifting rod (52). The first lifting rod (52) is slidably placed in the elongated hole of the first stop (11). The fixed track (2) is fixedly installed with a first ear plate (70), the bushing of the second spring pin (7) is fixed on the first ear plate (70), the left end of the shaft of the second spring pin (7) is fixedly installed with a second transmission plate (72), the second transmission plate (72) is fixedly installed with a second lifting rod (73), and the second lifting rod (73) is slidably placed in the elongated hole of the second stop (21); A second ear plate (61) is also fixedly installed on the rotating track (1). The pin (6) is slidably installed in the second ear plate (61). The right end of the pin (6) is fixedly connected to the left end of the shaft of the first spring pin (5) through the third transmission plate (60). The pin (6) can push the shaft of the second spring pin (7) to move to the left.

5. The crane rail locking device according to claim 1, characterized in that: The drive unit (3) is configured as an electric cylinder, a hydraulic telescopic cylinder or a motor reducer.

6. The crane rail locking device according to claim 4, characterized in that: The pin (6) is coaxially arranged with the second spring pin (7), and the right end of the pin (6) is set as a tapered structure that can be embedded in the bushing of the second spring pin (7).

7. The crane rail locking device according to claim 4, characterized in that: The first stop (11) has a first stop block (111) fixedly installed at the lower part, and the second stop (21) has a second stop block (211) fixedly installed at the lower part.

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