Travelling crane cooling mechanism of gantry bridge crane

By installing a protective casing and fan system on the overhead crane of the gantry crane, and utilizing a combination of reflective heat insulation coating and ventilation grid design, the problem of low heat dissipation efficiency of the motor in outdoor high-temperature environments is solved, achieving efficient heat dissipation of the motor and stable operation of the equipment.

CN223973736UActive Publication Date: 2026-03-06SHANGHAI SHENYI HEAVY IND MACHINERY EQUIP CO LTD
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Patent Information

Application Number
CN202520435091.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-03-06
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

When the lifting device of a gantry crane is operating in a high-temperature outdoor environment, the motor's heat dissipation efficiency is low, leading to increased energy consumption and affecting the stability and efficiency of the equipment.

Method used

A vehicle cooling mechanism was designed, including a protective shell and a fan system. The top of the protective shell is provided with a reflective heat-insulating coating and a ventilation grid. The fan blows air onto the motor, and the reflective heat-insulating coating reflects solar radiation and dissipates heat through the ventilation grid, thereby improving the motor's heat dissipation efficiency.

Benefits of technology

It significantly improves the heat dissipation capacity of the motor in high-temperature environments, reduces the energy consumption of the motor, and improves the stability and lifting efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a crane cooling mechanism of a gantry bridge crane, and belongs to the technical field of gantry bridge cranes. A lifting appliance is arranged at the top of the vehicle body, a motor is fixed at the top of the vehicle body, and a motor driving end is in transmission connection with a power receiving end of the lifting appliance; a supporting plate is fixed to the outer wall of the vehicle body, a protective shell is slidably connected to the top of the supporting plate, a reflective heat insulation coating is arranged on the top of the protective shell, two rows of symmetrical ventilation grids are arranged on the outer wall of the protective shell, an opening is formed in one end of the protective shell, the protective shell covers the motor through the opening, and a fan is fixed to one end of the protective shell. According to the utility model, when the motor of the vehicle body operates in a hot day with direct solar radiation outdoors, the protection shell is utilized to increase the heat dissipation capability for the motor, and the cooling and heat dissipation efficiency is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of gantry cranes, specifically a gantry crane travel cooling mechanism. Background Technology

[0002] A gantry crane is a large lifting device commonly used in factories, warehouses, and other similar locations, primarily for handling or stacking heavy objects. Its structural feature is a bridge-like frame, resembling a "door frame," consisting of two supporting legs and a bridge spanning between them. This design provides strong stability and load-bearing capacity, making it particularly suitable for outdoor working environments. This bridge section is typically equipped with a crane that slides across the bridge, using lifting devices mounted on the crane to lift and move objects.

[0003] The lifting device of a crane is generally driven by an electric motor, which transmits power to the lifting device through transmission devices such as gears, chains, and belts, enabling the lifting device to move up and down for lifting.

[0004] However, lifting equipment often needs to withstand large loads during lifting, requiring the motor to run for extended periods. As the load increases, the motor's energy consumption and heat generation also increase. When operating outdoors in hot weather with direct sunlight, relying solely on the motor for heat dissipation puts too much pressure on it, resulting in low cooling efficiency.

[0005] Based on this, this utility model designs a gantry crane cooling mechanism to solve the above problems. Summary of the Invention

[0006] The purpose of this utility model is to provide a gantry crane cooling mechanism to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a gantry crane cooling mechanism, comprising: a car body; a lifting device is provided on the top of the car body, and a motor is fixed on the top of the car body, with the motor drive end being connected to the power receiving end of the lifting device;

[0008] A support plate is fixed to the outer wall of the vehicle body. A protective shell is slidably connected to the top of the support plate. The top of the protective shell is provided with a reflective heat-insulating coating, and two symmetrical rows of ventilation grilles are opened on the outer wall of the protective shell. An opening is opened at one end of the protective shell, and the protective shell covers the motor through the opening. A fan is fixed to one end of the protective shell, and the air outlet of the fan faces the motor inside the protective shell.

[0009] Preferably, the outer wall of the protective shell is provided with two symmetrical auxiliary sliding plates, both of which are L-shaped and attached to the support plate, restricting the protective shell to slide on the top of the support plate.

[0010] Preferably, one end of each of the two auxiliary slide plates is bolted to the outer wall of the protective shell.

[0011] Preferably, a connecting plate is fixed to one end of the protective shell, and a hand-tightening bolt is threaded through the outer wall of the connecting plate.

[0012] Preferably, the outer wall of the pallet is provided with a first threaded groove and a second threaded groove, both of which are adapted to hand-tightened bolts.

[0013] Preferably, a power distribution box is fixed at one end of the vehicle body, and the power distribution box supplies power to the motor and fan electrical components.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Firstly, when the motor of the vehicle is operating outdoors in hot weather under direct sunlight, the protective shell helps to protect the motor from the sun and insulate it from heat. The reflective heat-insulating coating of the protective shell can help reflect solar heat radiation and increase heat insulation capacity. The ventilation grilles can improve the heat dissipation between the protective shell and the motor, thereby increasing the heat dissipation capacity of the motor and greatly improving the efficiency of cooling and heat dissipation.

[0016] Secondly, when the motor needs to be inspected, maintained, or replaced, the hand-tightened bolt can be removed from the second threaded groove, and the two auxiliary sliding plates can be used to make the protective shell slide linearly on the support plate, which makes it convenient for maintenance personnel to operate the motor. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0019] Figure 2 This is a schematic diagram highlighting the fan structure in this embodiment;

[0020] Figure 3 This is a schematic diagram of the support plate connection structure highlighting the vehicle body in this embodiment;

[0021] Figure 4 This is a schematic diagram highlighting the auxiliary skateboard structure in this embodiment;

[0022] Figure 5 This is a schematic diagram showing the protective casing separating from the motor in this embodiment.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Vehicle body; 2. Lifting device; 3. Motor; 4. Pallet; 5. Protective shell; 6. Fan; 7. Ventilation grille; 8. Auxiliary sliding plate; 9. Connecting plate; 10. Hand-tightening bolt; 11. First threaded groove; 12. Second threaded groove; 13. Distribution box. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a technical solution: a gantry crane cooling mechanism, comprising: a car body 1; a lifting device 2 is provided on the top of the car body 1, and a motor 3 is fixed on the top of the car body 1, with the driving end of the motor 3 being connected to the power receiving end of the lifting device 2;

[0027] A support plate 4 is fixed to the outer wall of the vehicle body 1. A protective shell 5 is slidably connected to the top of the support plate 4. A reflective heat insulation coating is provided on the top of the protective shell 5. Two symmetrical rows of ventilation grilles 7 are opened on the outer wall of the protective shell 5. An opening is opened at one end of the protective shell 5, and the protective shell 5 covers the motor 3 through the opening. A fan 6 is fixed at one end of the protective shell 5, and the air outlet of the fan 6 faces the motor 3 inside the protective shell 5.

[0028] The vehicle body 1 drives the installed lifting device 2 to carry out lifting operations via the installed motor 3. When the motor 3 is running, the protective shell 5 can slide to cover the motor 3 at one end, assisting the motor 3 in sun protection and heat insulation. The reflective heat insulation coating of the protective shell 5 is a ceramic reflective heat insulation coating, which can help the protective shell 5 reflect solar heat radiation, increase heat insulation capacity, and the protective shell 5 improves heat dissipation between the protective shell 5 and the motor 3 through the ventilation grille 7, which increases the heat dissipation capacity of the motor 3 when it is working outdoors in hot weather with direct sunlight, greatly improving the efficiency of cooling and heat dissipation.

[0029] More preferably, the outer wall of the protective shell 5 is provided with two symmetrical auxiliary sliding plates 8, both of which are L-shaped and attached to the support plate 4, restricting the protective shell 5 to slide on the top of the support plate 4;

[0030] The protective shell 5 slides linearly on the top of the support plate 4 via two L-shaped auxiliary protective plates. The two L-shaped auxiliary protective plates are located on both sides of the protective shell 5, allowing the auxiliary protective plates to move linearly in a stable manner.

[0031] In a further preferred embodiment, one end of each of the two auxiliary slide plates 8 is bolted to the outer wall of the protective shell 5;

[0032] The two auxiliary slide plates 8 are fixed to the protective shell 5 by bolts. After removing the bolts, the auxiliary slide plates 8 and the protective shell 5 can be disassembled for maintenance, inspection, cleaning or replacement.

[0033] A further preferred embodiment has a connecting plate 9 fixed to one end of the protective shell 5, and a hand-tightening bolt 10 is threaded through the outer wall of the connecting plate 9;

[0034] The connecting plate 9 and the hand-tightening bolts 10 are used to fix the protective shell 5 after displacement.

[0035] More preferably, the outer wall of the pallet 4 is provided with a first threaded groove 11 and a second threaded groove 12, both of which are adapted to the hand-tightening bolt 10.

[0036] The support plate 4 is used in conjunction with the hand-tightening bolt 10 through the first threaded groove 11 and the second threaded groove 12, so that the protective shell 5 can be fixed in two positions. When the hand-tightening bolt 10 is connected to the second threaded groove 12, the protective shell 5 can be fixed above the motor 3 for heat dissipation and cooling. When the hand-tightening bolt 10 is connected to the first threaded groove 11, the protective shell 5 can be fixed in a position where it is not in use.

[0037] More preferably, a power distribution box 13 is fixed at one end of the vehicle body 1, and the power distribution box 13 supplies power to the motor 3 and the fan 6 electrical components;

[0038] The wiring terminals of the distribution box 13 are connected to the electrical terminals of the motor 3 and fan 6 of the vehicle body 1 for auxiliary power supply.

[0039] One specific application of this embodiment is: the vehicle body 1 is used on the bridge of a gantry crane. When the entire vehicle body 1 is operating outdoors in hot weather, when it drives the lifting device 2 through the motor 3 for long-term lifting operations, the protective shell 5 further covers the motor 3 to prevent it from being exposed to sunlight. At the same time, the fan 6 at one end of the protective shell 5 runs and blows air towards the motor 3 inside the protective shell 5 to dissipate the heat dissipated by the motor 3 inside the protective shell 5. The ventilation grille 7 opened in the protective shell 5, together with the fan 6, can better dissipate heat and cool down. In addition, the top of the protective shell 5 is coated with a reflective heat insulation coating, which can reflect solar heat radiation and at the same time provide good heat insulation effect, further improving the cooling efficiency.

[0040] When the protective shell 5 covers the motor 3, the hand-tightening bolt 10 of its connecting plate 9 is threadedly connected to the second threaded groove 12 of the support plate 4, so that the protective shell 5 is stably installed in the working position to cool down the motor 3. When the motor 3 needs to be inspected, maintained or replaced, the hand-tightening bolt 10 can be removed from the second threaded groove 12, and the protective shell 5 can be slid in a straight line on the support plate 4 using the two auxiliary sliding plates 8. After sliding to the end of the support plate 4 away from the motor 3, the hand-tightening bolt 10 of the connecting plate 9 is aligned with the first threaded groove 11 and can be connected into the second threaded groove 12 so that the protective shell 5 can remain stable when not in use.

[0041] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A trolley cooling mechanism of a gantry crane, characterized in that, Include: The car body (1) top is provided with the spreader (2), the car body (1) top is fixed with motor (3) and motor (3) drive end transmission connection is connected in the power receiving end of spreader (2); The outer wall of the car body (1) is fixed with a supporting plate (4), the top of the supporting plate (4) is slidably connected with a protective shell (5), the top of the protective shell (5) is provided with a reflective heat insulation coating, and the outer wall of the protective shell (5) is provided with two rows of symmetrical ventilation grilles (7), one end of the protective shell (5) is provided with an opening, and the protective shell (5) covers the motor (3) above through the opening, one end of the protective shell (5) is fixed with a fan (6), and the air outlet end of the fan (6) faces the motor (3) in the protective shell (5).

2. The trolley cooling mechanism of the gantry bridge crane according to claim 1, characterized in that: The outer wall of the protective shell (5) is provided with two symmetrical auxiliary sliding plates (8), both of which are L-shaped and attached to the supporting plate (4), which limits the sliding of the protective shell (5) on the top of the supporting plate (4).

3. The trolley cooling mechanism of the gantry bridge crane according to claim 2, characterized in that: One end of the two auxiliary sliding plates (8) is locked to the outer wall of the protective shell (5) by bolts.

4. The trolley cooling mechanism of the gantry bridge crane according to claim 1, characterized in that: One end of the protective shell (5) is fixed with a connecting plate (9), and the outer wall of the connecting plate (9) is threadedly connected with a hand screw bolt (10).

5. The trolley cooling mechanism of the gantry bridge crane according to claim 4, characterized in that: The outer wall of the supporting plate (4) is provided with a first threaded groove (11) and a second threaded groove (12), respectively, and the first threaded groove (11) and the second threaded groove (12) are adapted to the hand screw bolt (10).

6. The trolley cooling mechanism of the gantry bridge crane according to claim 1, characterized in that: One end of the car body (1) is fixed with a distribution box (13), and the distribution box (13) is used to supply power to the electrical components of the motor (3) and the fan (6).