Deviated hanging double-beam crane

Abstract

The utility model discloses a bilaterally-hung double-beam crane, which relates to the technical field of travelling crane hoisting equipment and comprises two inverted trapezoidal main beams, a bilaterally-hung trolley is arranged on the upper sides of the main beams, a guide wheel is mounted on the upper side surface of one end of the bilaterally-hung trolley, and a movable pulley is connected to the lower side of the bilaterally-hung trolley corresponding to the position of the guide wheel through a steel wire rope. The two sides of the guide wheel and the side, away from the guide wheel, of the upper portion of the offset hanging trolley are each provided with a distance measuring sensor. Through the arrangement of the deviated hanging trolley, the guide wheels and the movable pulley, when the crane moves and lifts goods, the movable pulley on the lower side of the deviated hanging trolley can arrange a lifting part on one side of the two main beams, so that when the crane moves, the space limitation between lifting equipment and a wall is reduced; the hoisting structure can be close to a room wall as much as possible, and use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of traveling crane lifting equipment, in particular to an off-center double-beam crane. Background Art

[0002] Double-beam crane is the popular name for electric double-beam crane. When lifting goods in the workshop, double-beam crane can improve the stability of the lifting process and the lifting weight.

[0003] The lifting structure of the existing double-beam crane is between the two main beams, so that when the double-beam crane is close to the end of the room, there is a large space limitation between the lifting equipment and the wall, so that the lifting structure cannot be as close to the room wall as possible, affecting its use. At the same time, when the existing crane is moving, the distance from the wall cannot be measured in real time, and thus the crane operator cannot be reminded in real time, increasing the risk of crane movement. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an off-set double-beam crane. By setting the off-set trolley, guide wheel and movable pulley, when the crane is moving to lift the goods, the movable pulley on the lower side of the off-set trolley can set the lifting position on one side of the two main beams, so that when the crane is moving, the space restriction between the lifting equipment and the wall is reduced, so that the lifting structure can be as close to the room wall as possible, meeting the use requirements, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an off-set double-beam crane, comprising two inverted trapezoidal main beams, an off-set trolley is arranged on the upper side of the main beam, a guide wheel is installed on the upper side of one end of the off-set trolley, the lower side of the off-set trolley corresponding to the position of the guide wheel is connected to a movable pulley through a wire rope, ranging sensors are installed on both sides of the guide wheel and on the side of the upper part of the off-set trolley away from the guide wheel, and a display screen is installed on the side of one of the main beams facing the movable pulley.

[0006] Furthermore, both ends of the main beam are fixedly connected with end beams, and guide rails are provided on the lower side of the end beam and the upper side of the main beam. The guide rails provide support and limitation for the movement of the end beam and the eccentric trolley, thereby ensuring the stability of the end beam or the eccentric trolley during movement. The end beam can support and fix the main beam.

[0007] Furthermore, a suspension frame is installed on the opposite side of the same end of the end beam, and a No. 1 drive motor is installed on the upper side of the suspension frame. The suspension frame is convenient for maintenance personnel to stand, thereby facilitating the maintenance of the No. 1 drive motor.

[0008] Furthermore, a second driving motor is symmetrically installed on one side of the eccentric trolley, and a maintenance frame is installed on the side of one of the main beams. The maintenance frame is convenient for maintenance personnel to move along the direction of the main beam, thereby facilitating maintenance operations on the line in the direction of the main beam and the eccentric trolley on the main beam.

[0009] Furthermore, a lifting motor is installed on the upper side of the off-center trolley, and a gearbox is provided at the output end of the lifting motor. The lifting motor can drive the winding disk to rotate after changing speed through the gearbox, and then wind the steel cable on the winding disk, so that the movable pulley can be adjusted up and down, and then the cargo can be lifted.

[0010] Furthermore, a winding disk is connected to the output end of the gearbox, and contact sensors are installed on the upper sides of both ends of the main beam and the upper sides of both ends of the end beam. The contact sensors can detect the moving range of the end beam and the eccentric trolley. When the end beam or the eccentric trolley contacts the contact sensor, the contact sensor detects a signal and sends a signal to the control module, so that the No. 1 drive motor or the No. 2 drive motor stops running, preventing the end beam or the eccentric trolley from continuing to move, thereby reducing the risk brought by the continued movement of the end beam or the eccentric trolley.

[0011] Furthermore, the eccentric trolley and the lower side of the end beam are both provided with driving wheels corresponding to the guide rail positions.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides an offset trolley, a guide wheel and a movable pulley, so that when the crane moves to lift goods, the movable pulley on the lower side of the offset trolley can set the lifting position on one side of the two main beams, so that when the crane moves, the space restriction between the lifting device and the wall is reduced, so that the lifting structure can be as close to the room wall as possible, meeting the use requirements;

[0014] The utility model provides a distance measuring sensor and a display screen, so that when the eccentric trolley moves along the guide rail through the end beam, the distance between the eccentric trolley and the wall is measured in real time by the distance measuring sensor and displayed on the display screen in real time, so that the operator can be reminded in real time, reducing the risk when the crane moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the main view of the utility model;

[0016] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 3 It is a left side structural schematic diagram of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the driving wheel in the utility model.

[0019] In the figure: 1. Main beam; 2. Guide rail; 3. End beam; 4. Offset trolley; 5. No. 2 driving motor; 6. Lifting motor; 7. Maintenance frame; 8. Suspension frame; 9. Contact sensor; 10. Movable pulley; 11. Winding disk; 12. Gearbox; 13. Guide wheel; 14. No. 1 driving motor; 15. Distance sensor; 16. Display screen; 17. Driving wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The present embodiment provides a technical solution: an eccentric double-beam crane, comprising two inverted trapezoidal main beams 1, an eccentric trolley 4 is arranged on the upper side of the main beam 1, a guide wheel 13 is installed on the upper side of one end of the eccentric trolley 4, and a movable pulley 10 is connected to the lower side of the eccentric trolley 4 corresponding to the position of the guide wheel 13 through a wire rope, and distance measuring sensors 15 are installed on both sides of the guide wheel 13 and on the side of the upper part of the eccentric trolley 4 away from the guide wheel 13, and a display screen 16 is installed on the side of one of the main beams 1 facing the movable pulley 10.

[0022] like Figure 1-4 As shown, the main beam 1 is fixedly connected to the end beam 3, and the No. 1 driving motor 14 at both ends of the end beam 3 can drive the driving wheel 17 to rotate, so that the end beam 3 can move along the guide rail 2, and the eccentric trolley 4 on the upper side of the main beam 1 moves along the main beam 1, and the No. 2 driving motor 5 drives the driving wheel 17 on the lower side of the eccentric trolley 4 to rotate, so that the eccentric trolley 4 moves along the main beam 1. When the main beam 1 moves along the guide rail 2, the ranging sensor 15 on the eccentric trolley 4 can measure the distance between the eccentric trolley 4 and the wall in the room in real time, and display the distance in real time through the display screen 16, so that the operator can know in real time, reducing the risk of the eccentric trolley 4 when moving. The guide wheel 13 and the movable pulley 10 on the eccentric trolley 4 allow the lifting structure to be set on the outside of the two main beams 1, so that the lifting structure can be close to the wall, reducing the maximum distance between the lifting structure and the wall, and meeting the actual lifting needs.

[0023] Both ends of the main beam 1 are fixedly connected with end beams 3, and guide rails 2 are provided on the lower side of the end beam 3 and the upper side of the main beam 1. The guide rails 2 can support and limit the lateral movement of the end beam 3 and the eccentric trolley 4 to ensure the movement stability of the eccentric trolley 4 and the end beam 3.

[0024] A suspension bracket 8 is installed on the opposite side of the same end of the end beam 3, and a No. 1 drive motor 14 is installed on the upper side of the suspension bracket 8. The suspension bracket 8 can be convenient for maintenance personnel to stand, thereby facilitating maintenance personnel to inspect and repair the No. 1 drive motor 14.

[0025] A No. 2 driving motor 5 is symmetrically installed on one side of the eccentric trolley 4, and a maintenance frame 7 is installed on the side of a main beam 1. The maintenance frame 7 is convenient for maintenance personnel to move along the direction of the main beam 1, and then perform maintenance operations on the lines on the main beam 1 and the equipment on the eccentric trolley 4. The No. 2 driving motor 5 provides power for the movement of the eccentric trolley 4, so that the eccentric trolley 4 can move stably along the guide rail 2 on the main beam 1, and then lift the goods to different locations.

[0026] A lifting motor 6 is installed on the upper side of the eccentric trolley 4, and a gearbox 12 is provided at the output end of the lifting motor 6. The gearbox 12 can change the speed of the lifting motor 6 to ensure the rotation speed of the winding drum 11 and the winding torque of the steel cable, so that the winding drum 11 can wind or release the steel cable.

[0027] A winding disk 11 is connected to the output end of the gearbox 12, and contact sensors 9 are installed on the upper sides of both ends of the main beam 1 and the upper sides of both ends of the end beam 3. The contact sensor 9 can perform contact detection on the movement of the end beam 3 and the eccentric trolley 4. When a contact signal is detected, the movement of the end beam 3 or the eccentric trolley 4 can be stopped to prevent the end beam 3 or the eccentric trolley 4 from continuing to move and causing greater safety hazards.

[0028] The eccentric trolley 4 and the corresponding guide rail 2 on the lower side of the end beam 3 are both provided with driving wheels 17. The driving wheels 17 rotate under the drive of the No. 1 driving motor 14 or the No. 2 driving motor 5, so that the end beam 3 can move along the guide rail 2 on the lower side of the end beam 3, or the eccentric trolley 4 can move along the guide rail 2 on the upper side of the main beam 1, so as to adjust the lifting position.

[0029] The working principle of the eccentric double-beam crane provided by the utility model is as follows: Figure 1-Figure 4As shown, the main beam 1 is fixedly connected to the end beam 3, and the No. 1 driving motor 14 at both ends of the end beam 3 can drive the driving wheel 17 to rotate, so that the end beam 3 can move along the guide rail 2, and the eccentric trolley 4 on the upper side of the main beam 1 moves along the main beam 1, and the No. 2 driving motor 5 drives the driving wheel 17 on the lower side of the eccentric trolley 4 to rotate, so that the eccentric trolley 4 moves along the main beam 1. When the main beam 1 moves along the guide rail 2, the ranging sensor 15 on the eccentric trolley 4 can measure the distance between the eccentric trolley 4 and the wall in the room in real time, and display the distance in real time through the display screen 16, so that the operator can know in real time, reducing the risk of the eccentric trolley 4 when moving. The guide wheel 13 and the movable pulley 10 on the eccentric trolley 4 allow the lifting structure to be set on the outside of the two main beams 1, so that the lifting structure can be close to the wall, reducing the maximum distance between the lifting structure and the wall, and meeting the actual lifting needs.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An off-center double-beam crane, comprising two inverted trapezoidal main beams (1), characterized in that: An eccentric trolley (4) is arranged on the upper side of the main beam (1), a guide wheel (13) is installed on the upper side of one end of the eccentric trolley (4), the lower side of the eccentric trolley (4) corresponding to the position of the guide wheel (13) is connected to a movable pulley (10) through a wire rope, and distance measuring sensors (15) are installed on both sides of the guide wheel (13) and on the upper side of the eccentric trolley (4) away from the guide wheel (13), and a display screen (16) is installed on one side of the main beam (1) facing the movable pulley (10).

2. The eccentric double-beam crane according to claim 1, characterized in that: Both ends of the main beam (1) are fixedly connected to end beams (3), and guide rails (2) are provided on the lower side of the end beam (3) and the upper side of the main beam (1).

3. The eccentric double-beam crane according to claim 2, characterized in that: A suspension frame (8) is mounted on opposite sides of the same end of the end beam (3), and a No. 1 drive motor (14) is mounted on the upper side of the suspension frame (8).

4. The eccentric double-beam crane according to claim 2, characterized in that: A second drive motor (5) is symmetrically mounted on one side of the eccentrically-hung trolley (4), and a maintenance frame (7) is mounted on the side of one of the main beams (1).

5. The eccentric double-beam crane according to claim 2, characterized in that: A lifting motor (6) is installed on the upper side of the eccentrically hung trolley (4), and a gearbox (12) is provided at the output end of the lifting motor (6).

6. The eccentric double-beam crane according to claim 5, characterized in that: The output end of the gearbox (12) is connected to a winding disk (11), and contact sensors (9) are installed on the upper sides of both ends of the main beam (1) and the upper sides of both ends of the end beam (3).

7. The eccentric double-beam crane according to claim 4, characterized in that: The eccentrically-hung trolley (4) and the lower side of the end beam (3) are both provided with driving wheels (17) at positions corresponding to the guide rails (2).

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