Portal crane with replaceable rails

Abstract

The utility model discloses a portal crane with a replaceable track, relates to the technical field of portal cranes, and aims to solve the problems that an existing device is not provided with a transverse moving structure to enable the portal crane to move to a track parallel to the transverse moving structure, so that the portal crane cannot move transversely, and the operation is inconvenient. The device comprises a square frame, and the bottom, the left side and the right side of the square frame are arranged in an open mode; the base is integrally formed and arranged at the front end and the rear end of the bottom of the square frame, a mounting frame is arranged below the base, wheels are arranged at the bottom of the mounting frame, a moving seat is arranged on the lower portion in the square frame, the bottom, the left side and the right side of the moving seat are open, and a telescopic rod is arranged at the upper end in the moving seat; and a transverse plate is arranged at the bottom of the telescopic rod.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry cranes, in particular to a gantry crane with replaceable tracks. Background Art

[0002] Gantry crane is a kind of deformation of bridge crane, also called gantry crane, mainly used for loading and unloading of outdoor cargo yard, material yard cargo and bulk cargo. Gantry crane has the characteristics of high site utilization, large operating range, wide adaptability and strong versatility, and is widely used in port cargo yards.

[0003] For example, the announcement number CN 218174416 U is called a gantry crane with a changeable travel track. The device includes a gantry crane body, a transverse track for the transverse movement of the gantry crane body, and a longitudinal track perpendicularly intersecting the transverse track and used for the longitudinal movement of the gantry crane body. Advantages: the track change operation can be carried out quickly, the operating range and utilization rate can be further improved, and it is no longer restricted by too many tracks;

[0004] The above device does not have a lateral movement structure to move the gantry crane to a track parallel to it, resulting in the gantry crane being unable to move laterally and being unable to operate when the moving track needs to be changed; therefore, we propose a gantry crane with a changeable track in order to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a gantry crane with a changeable track, so as to solve the problem in the above-mentioned background technology that the existing device has no lateral movement structure to enable the gantry crane to move to a track parallel thereto, resulting in the gantry crane being unable to move laterally and being unable to operate when the moving track needs to be changed.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gantry crane with replaceable tracks, comprising a square frame, the bottom and left and right sides of the square frame are open-type;

[0007] Also includes:

[0008] The base is integrally formed at the front and rear ends of the bottom of the square frame, and a mounting frame is arranged below the base, and wheels are arranged at the bottom of the mounting frame. A movable seat is arranged at the lower part of the interior of the square frame, and the bottom and left and right sides of the movable seat are open-type. A telescopic rod is arranged at the upper end of the interior of the movable seat, and a cross plate is arranged at the bottom of the telescopic rod, and a supporting frame is arranged below the cross plate, and a supporting bottom plate is arranged below the supporting frame. A fixed frame is symmetrically arranged at the upper end of the interior of the square frame, a slide rail is arranged below the fixed frame, and a slide groove is arranged at the lower part of the interior of the slide rail, a connecting frame is arranged at the upper end of the movable seat, and the connecting frame passes through the slide groove and extends to the interior of the slide rail, and a sliding seat is arranged at the upper end of the connecting frame, and the sliding seat is slidably engaged with the interior of the slide rail, and a cross beam is arranged between the upper ends of the two square frames.

[0009] Preferably, a screw is provided inside the slide rail, and the sliding seat is threadedly connected to the screw. A motor is provided on one side outside the slide rail, and the motor drives the screw to drive the sliding seat to slide left and right inside the slide rail.

[0010] Preferably, a cylinder is provided at the upper end of the movable seat, and the cylinder is connected to the telescopic rod.

[0011] Preferably, the length of the slide rail is greater than the width of the square frame.

[0012] Preferably, two support frames are symmetrically arranged, the distance between the two support frames is greater than the width of the track, and the height of the support frames is higher than the height of the track.

[0013] Preferably, grooves are symmetrically provided at the front and rear ends of the inner wall of the square frame, and sliders are symmetrically provided at the front ends of the movable seat, the sliders are engaged with the grooves, and the length of the sliders is greater than the width of the square frame.

[0014] Preferably, tripods are provided below both ends of the cross beam, the tripods are fixed to the upper end of the square frame, and the cross beam is fixed to the upper end of the square frame through the tripods.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A base and a square frame are arranged at the bottom of the gantry crane, the lower interior of the square frame is open, a moving seat is arranged inside the square frame, a slide rail and a driving structure are arranged at the upper end of the square frame, and a connecting structure is arranged at the upper end of the moving seat to connect with the slide rail. The driving structure inside the slide rail can make the moving seat move left and right, and can extend the left and right sides of the square frame so that the moving seat is located above the track that needs to be changed. At the same time, a cylinder and a supporting structure are arranged inside the moving seat. When the moving seat moves out of the outer side of the square frame, the supporting structure can be driven to descend, and the supporting structure can be against the left and right sides of the track, and then the slide rail structure can be driven to move the gantry crane to the position of the moving seat, so that the track can be replaced, and the gantry crane can be translated horizontally, which is convenient for the gantry crane to move quickly to the track on one side.

[0017] 2. The supporting structure inside the moving seat is composed of a horizontal plate and a supporting frame. There are two supporting frames, which can be located on the left and right sides of the track to play a supporting role. The left and right supporting frames can avoid the track to prevent the supporting frames from colliding with the track. A cylinder is set at the upper end of the moving seat, and the cylinder drives the horizontal plate to move up and down, so that the supporting frame can be lowered and supported on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view of the base and square frame structure of the utility model;

[0020] Figure 3 It is a top view of the base and square frame of the utility model;

[0021] Figure 4 This is an internal cross-sectional view of the mobile seat of the utility model;

[0022] In the figure: 1. base; 2. square frame; 3. mounting frame; 4. wheels; 5. moving seat; 6. fixed frame; 7. slide rail; 8. screw; 9. sliding seat; 10. connecting frame; 11. cylinder; 12. telescopic rod; 13. cross plate; 14. supporting frame; 15. supporting bottom plate; 16. slider; 17. groove; 18. motor; 19. cross beam; 20. tripod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-4, the utility model provides an embodiment: a gantry crane with replaceable tracks, comprising a square frame 2, the bottom and left and right sides of the square frame 2 are open-type;

[0025] Also includes:

[0026] The base 1 is integrally formed and arranged at the front and rear ends of the bottom of the square frame 2. A mounting frame 3 is arranged below the base 1, and a wheel 4 is arranged at the bottom of the mounting frame 3. A moving seat 5 is arranged at the lower part of the interior of the square frame 2, and the bottom and left and right sides of the moving seat 5 are open. A telescopic rod 12 is arranged at the upper end of the interior of the moving seat 5, and a cross plate 13 is arranged at the bottom of the telescopic rod 12. A support frame 14 is arranged below the cross plate 13, and a support bottom plate 15 is arranged below the support frame 14. A fixed frame 6 is symmetrically arranged at the upper end of the interior of the square frame 2, a slide rail 7 is arranged below the fixed frame 6, and a slide groove is arranged at the lower part of the interior of the slide rail 7. A connecting frame 10 is arranged at the upper end of the moving seat 5, and the connecting frame 10 extends through the slide groove to the inside of the slide rail 7. A sliding seat 9 is arranged at the upper end of the connecting frame 10, and the sliding seat 9 is slidably engaged in the inside of the slide rail 7. A cross beam 19 is arranged between the upper ends of the two square frames 2.

[0027] When the track of the gantry crane needs to be replaced, the motor 18 is started to control the screw 8 to rotate, driving the sliding seat 9 to move in the direction of the replaced track. The sliding seat 9 drives the moving seat 5 to move outward, so that the moving seat 5 moves to the top of the replaced track. Then the cylinder 11 is started to lower the cross plate 13, so that the support frame 14 is located on both sides of the replaced track, and the support frame 14 is in contact with the ground and lifts the gantry crane to make the wheel 4 leave the original track. Then the screw 8 is driven to rotate, so that the square frame 2 is translated in the direction of the replaced track, and the wheel 4 moves to the top of the replaced track.

[0028] See also Figure 3 A screw rod 8 is arranged inside the slide rail 7, and the sliding seat 9 is threadedly connected to the screw rod 8. A motor 18 is arranged on the outer side of the slide rail 7, and the motor 18 drives the screw rod 8 to drive the sliding seat 9 to slide left and right inside the slide rail 7, and the screw rod 8 drives the moving seat 5 to move horizontally left and right.

[0029] See also Figure 2 A cylinder 11 is provided at the upper end of the movable seat 5, and the cylinder 11 is connected to the telescopic rod 12, and the cylinder 11 is used to push the horizontal plate 13 to move up and down.

[0030] See also Figure 1 The length of the slide rail 7 is greater than the width of the square frame 2 , and the longer slide rail 7 can increase the lateral moving distance of the moving seat 5 .

[0031] See also Figure 4Two support frames 14 are symmetrically arranged, the distance between the two support frames 14 is greater than the width of the track, and the height of the support frames 14 is higher than the height of the track, so that the support frames 14 can avoid the middle of the track and are located on both sides of the track.

[0032] See also Figure 2 Grooves 17 are symmetrically provided at the front and rear ends of the inner wall of the square frame 2, and sliders 16 are symmetrically provided at the front ends of the moving seat 5. The sliders 16 are engaged with the grooves 17, and the length of the sliders 16 is greater than the width of the square frame 2, so as to improve the stability of the moving seat 5 during lateral movement.

[0033] See also Figure 1 A tripod 20 is provided below both ends of the cross beam 19 , the tripod 20 is fixed to the upper end of the square frame 2 , and the cross beam 19 is fixed to the upper end of the square frame 2 through the tripod 20 , so that the cross beam 19 is stably installed on the upper ends of the two square frames 2 .

[0034] Working principle: When it is necessary to replace the track of the gantry crane, start the motor 18 to control the screw 8 to rotate, drive the sliding seat 9 to move in the direction of the replaced track, and the sliding seat 9 drives the moving seat 5 to move outward, so that the moving seat 5 moves to the top of the replaced track, and then start the cylinder 11 to lower the cross plate 13, so that the support frame 14 is located on both sides of the replaced track, and the support frame 14 is in contact with the ground and lifts the gantry crane, so that the wheel 4 is separated from the original track, and then drive the screw 8 to rotate, so that the square frame 2 is translated in the direction of the replaced track, and the wheel 4 moves to the top of the replaced track.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A gantry crane with replaceable tracks, comprising a square frame (2), wherein the bottom and left and right sides of the square frame (2) are open; Features: Also includes: A base (1) is integrally formed and arranged at the front and rear ends of the bottom of a square frame (2); a mounting frame (3) is arranged below the base (1); wheels (4) are arranged at the bottom of the mounting frame (3); a moving seat (5) is arranged at the bottom of the square frame (2); the bottom and left and right sides of the moving seat (5) are open; a telescopic rod (12) is arranged at the upper end of the moving seat (5); a horizontal plate (13) is arranged at the bottom of the telescopic rod (12); a support frame (14) is arranged below the horizontal plate (13); the support frame (14) A supporting bottom plate (15) is arranged below the square frame (2); a fixed frame (6) is symmetrically arranged at the upper end of the interior of the square frame (2); a slide rail (7) is arranged below the fixed frame (6); a slide groove is arranged below the interior of the slide rail (7); a connecting frame (10) is arranged at the upper end of the movable seat (5); the connecting frame (10) passes through the slide groove and extends to the interior of the slide rail (7); a sliding seat (9) is arranged at the upper end of the connecting frame (10); the sliding seat (9) is slidably engaged in the interior of the slide rail (7); and a crossbeam (19) is arranged between the upper ends of the two square frames (2).

2. A gantry crane with replaceable tracks according to claim 1, characterized in that: A screw rod (8) is arranged inside the slide rail (7), and the sliding seat (9) is threadedly connected to the screw rod (8). A motor (18) is arranged on one side outside the slide rail (7), and the motor (18) drives the screw rod (8) to drive the sliding seat (9) to slide left and right inside the slide rail (7).

3. The track-changeable gantry crane according to claim 1, characterized in that: A cylinder (11) is provided at the upper end of the movable seat (5), and the cylinder (11) is connected to a telescopic rod (12).

4. The track-changeable gantry crane according to claim 1, characterized in that: The length of the slide rail (7) is greater than the width of the square frame (2).

5. The track-changeable gantry crane according to claim 1, characterized in that: Two support frames (14) are symmetrically arranged, the distance between the two support frames (14) is greater than the width of the track, and the height of the support frames (14) is higher than the height of the track.

6. The track-changeable gantry crane according to claim 1, characterized in that: Grooves (17) are symmetrically arranged at the front and rear ends of the inner wall of the square frame (2), and sliders (16) are symmetrically arranged at the front ends of the movable seat (5). The sliders (16) are engaged with the grooves (17), and the length of the sliders (16) is greater than the width of the square frame (2).

7. The track-changeable gantry crane according to claim 1, characterized in that: A tripod (20) is provided below both ends of the crossbeam (19), the tripod (20) is fixed to the upper end of the square frame (2), and the crossbeam (19) is fixed to the upper end of the square frame (2) through the tripod (20).

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