Novel portal crane electric anchoring device

Abstract

The utility model provides a novel portal crane electric anchoring device which comprises a shell, a mounting plate is arranged on the outer side of the shell, a plurality of mounting holes are formed in the mounting plate, a fixing frame is arranged in the shell, a bearing is arranged on the upper side of the fixing frame, the upper end of a spiral lead screw is installed in the bearing, the spiral lead screw is driven by a driving mechanism, and the spiral lead screw is matched with a ball nut. The ball nut is fixed to the movable frame, a guide groove for guiding the movable frame is formed in the shell, and the movable frame is connected with the anchoring mechanism. According to the anchoring device, mechanical anchoring of the portal crane is achieved, it can be effectively guaranteed that safety accidents such as sliding or toppling of hoisting equipment can not happen, and the problems that plugging and pulling are not in place and operation is inconvenient due to manual anchoring are solved.

Description

Technical Field

[0001] The utility model relates to the field of cranes, in particular to a novel electric anchoring device for gantry cranes. Background Art

[0002] At present, when traditional gantry cranes need to be anchored, the operator needs to manually rotate the threaded anchor shaft and insert it into the ground locking groove to achieve axial anchoring of the gantry crane. When the gantry crane needs to move axially, the operator needs to manually rotate the anchor shaft and pull it out of the ground anchor groove. Although this manual operation method can achieve the anchoring and unanchoring of the gantry crane, it has the disadvantages of inadequate insertion and extraction of the anchor, inconvenient operation, and high safety risks.

[0003] In addition, the buffer design of some anchoring devices is not ideal, and it cannot effectively absorb and reduce the impact and vibration generated by the lifting equipment when it is running or stopped, which may cause uneven force on the equipment, shorten the service life of the equipment, and pose potential safety hazards. Long-term use may cause the parts of the anchoring device, especially the anchor shaft, to wear or even be damaged, so regular maintenance and inspection are required.

[0004] Some anchoring devices are only suitable for lifting equipment of specific types or specifications, and have standardized and unified requirements for ground locking grooves. They are less applicable to other types of equipment and cannot be universalized. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a new electric anchoring device for gantry crane, which realizes mechanical anchoring of gantry crane, can effectively ensure that lifting equipment will not have safety accidents such as sliding or tipping, and solves the problems of improper plugging and unplugging and inconvenient operation of manual anchoring.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a new type of electric anchoring device for door machine, including a shell, a mounting plate is provided on the outside of the shell, a plurality of mounting holes are provided on the mounting plate, a fixing frame is provided in the shell, a bearing is provided on the upper side of the fixing frame, the upper end of the spiral screw is installed in the bearing, the spiral screw is driven by a driving mechanism, the spiral screw cooperates with a ball nut, the ball nut is fixed on the moving frame, a guide groove for guiding the moving frame is provided on the shell, the moving frame is connected to the anchoring mechanism, and an opening for the anchoring mechanism to pass through is provided at the lower end of the shell.

[0007] In a preferred solution, the driving mechanism includes a reduction motor arranged in the housing, and the output shaft of the reduction motor is connected to the upper end of the screw rod through a coupling.

[0008] In a preferred solution, the fixing frame is provided with a slot for the spiral screw to pass through.

[0009] In a preferred solution, the movable frame is connected to the anchoring mechanism via a spring buffer.

[0010] In a preferred solution, limit plates are provided at both upper and lower ends of the guide groove, and travel switches are provided on the limit plates.

[0011] The utility model provides a new electric anchoring device for a door crane. The driving mechanism drives the screw rod to rotate. The screw rod cooperates with the ball nut. Since the ball nut is connected to the moving frame, the moving frame is driven to move up and down along the guide groove, so that the anchoring mechanism moves up and down. When the lifting equipment needs to be fixed to prevent wind, the operator controls the anchoring mechanism to extend from the lower end opening of the shell and enter the corresponding ground locking groove. When windproof fixation is not required, the operator controls the anchoring mechanism to retract from the lower end opening of the shell into the shell. The mechanical anchoring of the door crane can effectively ensure that the lifting equipment will not slide or tip over, etc., and solve the problems of inadequate plugging and unplugging and inconvenient operation of manual anchoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a front view of the utility model;

[0015] Figure 3 It is a cross-sectional view of the utility model;

[0016] In the figure: housing 1, mounting plate 2, fixing frame 3, bearing 4, screw rod 5, ball nut 6, moving frame 7, anchoring mechanism 8, reduction motor 9, coupling 10, limit plate 11, travel switch 12, spring buffer 13, guide groove 101, mounting hole 201, slot 301. DETAILED DESCRIPTION

[0017] like Figures 1 to 3 As shown, a new type of electric anchoring device for a gantry crane includes a shell 1. An opening is provided at the lower end of the shell 1 for the anchoring mechanism 8 to pass through, or the shell 1 is set as a door-shaped structure. The shell 1 is made of rainproof and sun-proof materials. A mounting plate 2 is provided on the outer side of the shell 1. Two groups of mounting plates 2 are provided. A plurality of mounting holes 201 are provided on the mounting plate 2 to facilitate the installation of the anchoring device on the lifting device.

[0018] A fixing frame 3 is provided in the shell 1, and a bearing 4 is provided on the upper side of the fixing frame 3. The upper end of the spiral screw 5 is installed in the bearing 4. The spiral screw 5 is driven by a driving mechanism. In this embodiment, the driving mechanism includes a reduction motor 9 arranged in the shell 1, and the reduction motor 9 is fixed on the top of the shell 1. The output shaft of the reduction motor 9 is connected to the upper end of the spiral screw 5 through a coupling 10, and the spiral screw 5 is driven to rotate by the reduction motor 9.

[0019] The spiral screw 5 cooperates with the ball nut 6, the ball nut 6 is fixed on the mobile frame 7, and the shell 1 is provided with a guide groove 101 for guiding the mobile frame 7. The guide groove 101 is arranged on both sides of the shell 1. The mobile frame 7 is connected to the anchoring mechanism 8, and the anchoring mechanism 8 is a ground anchor shaft and a connecting plate arranged at the upper end of the ground anchor shaft.

[0020] The spiral screw 5 rotates and cooperates with the ball nut 6. Since the ball nut 6 is connected to the movable frame 7, the movable frame 7 is driven to move up and down along the guide groove 101, so that the anchoring mechanism 8 moves up and down. When the anchoring mechanism 8 moves downward, it is inserted into the anchoring groove to achieve anchoring.

[0021] Preferably, the fixing frame 3 is provided with a slot 301 for the screw rod 5 to pass through. The slot 301 is provided to facilitate the installation of the screw rod 5.

[0022] Preferably, the mobile frame 7 is connected to the anchor mechanism 8 via a spring buffer 13, and the lower end of the spring buffer 13 is connected to the anchor mechanism 8 via a bolt. On the one hand, it is convenient to replace the anchor mechanism 8, and it can be disassembled and installed at will. When anchoring in a place with high bearing capacity of the soil or using a smaller lifting device, a relatively small diameter ground anchor shaft can be used; when anchoring in a soil with low bearing capacity or using a larger lifting device, a larger diameter ground anchor shaft can be used to ensure sufficient anchoring force. On the other hand, by setting the spring buffer 13, the impact can be mitigated to the greatest extent.

[0023] Limit plates 11 are provided at both upper and lower ends of the guide groove 101, and travel switches 12 are provided on opposite sides of the two sets of limit plates 11. The travel switch 12 can select the LXW5-11M switch of CHZTTDQ. The travel switch 12 controls the opening and closing of the driving mechanism, and can accurately limit the vertical movement of the anchoring mechanism 8. When reaching the upper and lower limits, it automatically decelerates and stops to ensure that the anchoring mechanism 8 moves safely within the specified range.

[0024] The working principle of the device is as follows: according to the control of the operator, the driving mechanism drives the screw 5 to rotate, and the screw 5 cooperates with the ball nut 6. Since the ball nut 6 is connected to the moving frame 7, the moving frame 7 is driven to move up and down along the guide groove 101, so that the anchoring mechanism 8 moves up and down. When the lifting equipment needs to be fixed to windproof, the operator controls the anchoring mechanism 8 to extend from the lower end opening of the shell 1 and enter the corresponding ground locking groove. When windproof fixation is not required, the operator controls the anchoring mechanism 8 to retract from the lower end opening of the shell into the shell; at the same time, when the shell reaches the travel limit, the travel switch will also automatically decelerate and stop the whole machine.

Claims

1. A new type of electric anchoring device for door crane, characterized by: The invention comprises a housing (1), a mounting plate (2) is provided on the outer side of the housing (1), a plurality of mounting holes (201) are provided on the mounting plate (2), a fixing frame (3) is provided inside the housing (1), a bearing (4) is provided on the upper side of the fixing frame (3), an upper end of a screw rod (5) is mounted in the bearing (4), the screw rod (5) is driven by a driving mechanism, the screw rod (5) cooperates with a ball nut (6), the ball nut (6) is fixed on a moving frame (7), a guide groove (101) is provided on the housing (1) for guiding the moving frame (7), the moving frame (7) is connected to an anchoring mechanism (8), and an opening is provided at the lower end of the housing (1) for the anchoring mechanism (8) to pass through.

2. According to claim 1, the new electric anchoring device for door crane is characterized in that: The driving mechanism comprises a reduction motor (9) arranged in the housing (1), and the output shaft of the reduction motor (9) is connected to the upper end of the screw rod (5) via a coupling (10).

3. According to claim 1, the new electric anchoring device for door crane is characterized in that: The fixing frame (3) is provided with a slot (301) for the spiral screw rod (5) to pass through.

4. According to claim 1, the new electric anchoring device for door crane is characterized in that: The movable frame (7) is connected to the anchoring mechanism (8) via a spring buffer (13).

5. According to claim 1, the new electric anchoring device for door crane is characterized in that: Limit plates (11) are provided at both upper and lower ends of the guide groove (101), and a travel switch (12) is provided on the limit plate (11).

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