An electric loader cooling system and electric loader

Abstract

The utility model discloses an electric loader cooling system and electric loader, electric loader cooling system includes: radiator, cooling pump, the entrance of cooling pump is connected the cooling liquid export of radiator, a plurality of groups of cooling pipeline, the one end of each group cooling pipeline is connected the export of cooling pump, the other end of each group cooling pipeline is connected the confluence pipeline after along the set route through the working device of waiting for cooling, the confluence pipeline is connected the cooling liquid import of radiator. The utility model integrates one body to multiple electric cylinders and its electric control heat dissipation, has reduced the quantity of independent heat dissipation unit, has reduced space occupancy and installation complexity, has improved the heat dissipation efficiency, has saved whole car installation space simultaneously, and the production, manufacturing cost is low.

Description

Technical Field

[0001] This utility model belongs to the field of electric loader technology, specifically relating to an electric loader cooling system and an electric loader. Background Technology

[0002] Loaders are earthmoving machines widely used in construction projects such as building, hydropower, ports, mines, highways, and railways. Common loaders mainly use hydraulic cylinders to control steering and drive the bucket. However, traditional hydraulic systems have disadvantages such as low efficiency, environmental pollution caused by hydraulic oil leaks, complex maintenance, high cost, high noise, and limitations in control precision and response speed.

[0003] With increasingly stringent environmental regulations, higher energy efficiency requirements, and ever-increasing demands for equipment intelligence and performance, the rapid maturation and cost reduction of electric actuator technology have significant advantages, especially in small and medium-sized loaders and specific high-precision, high-cleanliness operation scenarios.

[0004] Based on the working characteristics of loaders, electric loaders require components such as a travel motor and its controller, an electric cylinder and its driver. When these components are working, due to the continuous output speed and torque of the whole machine, the travel motor and its controller, the electric cylinder and its driver, etc. will generate heat, causing the temperature of each component to rise. Excessive temperature will not only limit the performance of the electric loader, but also greatly reduce the reliability of these components.

[0005] Existing electric loader cooling systems use different cooling units to independently cool each working device. While this improves cooling efficiency, it occupies a large amount of installation space, is complex to install, and is not conducive to the overall spatial layout of the vehicle. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an electric loader cooling system and an electric loader that integrates multiple electric cylinders and their electronically controlled heat dissipation into one unit. This reduces the number of independent heat dissipation units, lowers space occupancy and installation complexity, improves heat dissipation efficiency, saves vehicle installation space, and simplifies installation and maintenance while reducing production and manufacturing costs.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] In a first aspect, a cooling system for an electric loader is provided, comprising: a radiator; a cooling pump, the inlet of which is connected to the coolant outlet of the radiator; and a plurality of cooling pipes, one end of each cooling pipe being connected to the outlet of the cooling pump, and the other end of each cooling pipe passing through a predetermined route through a working device to be cooled and then connected to a manifold, the manifold being connected to the coolant inlet of the radiator.

[0009] Furthermore, the working device to be cooled includes: boom unit, tipping bucket unit, steering unit, and traveling unit.

[0010] Furthermore, the cooling pump includes a cooling pump one and a cooling pump two; the outlet of the cooling pump one is connected to a cooling pipe one for cooling the boom unit and a cooling pipe two for cooling the tipping unit; the outlet of the cooling pump two is connected to a cooling pipe three for cooling the steering unit and a cooling pipe four for cooling the traveling unit.

[0011] Furthermore, cooling pipe one and cooling pipe two are connected to the outlet of cooling pump one via a tee. Cooling pipe one passes through the boom drive and then connects to branch pipe one and branch pipe two via a tee. Branch pipe one passes through the left boom electric cylinder and then connects to the manifold. Branch pipe two passes through the right boom electric cylinder and then connects to the manifold. Cooling pipe two passes through the bucket drive and the bucket electric cylinder in sequence and then connects to the manifold.

[0012] Furthermore, cooling pipe three and cooling pipe four are connected to the outlet of cooling pump two via a tee. Cooling pipe three passes through the steering drive and is then connected to branch pipe three and branch pipe four via a tee. Branch pipe three passes through the left steering electric cylinder and is then connected to the manifold. Branch pipe four passes through the right steering electric cylinder and is then connected to the manifold. Cooling pipe four passes through the travel controller and the travel motor in sequence and is then connected to the manifold.

[0013] Furthermore, the coolant in the radiator is water, and the radiator is equipped with a water tank.

[0014] Furthermore, the radiator is equipped with a cooling fan for cooling the radiator.

[0015] Furthermore, all working devices to be cooled are equipped with temperature sensors, which are electrically connected to a controller for controlling the start, stop, and speed of the cooling fan.

[0016] In a second aspect, an electric loader is provided, the electric loader being equipped with the electric loader cooling system described in the first aspect.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model connects the inlet of the cooling pump to the coolant outlet of the radiator; one end of the cooling pipe is connected to the outlet of the cooling pump, and the other end of the cooling pipe passes through the working device to be cooled along a set route and then connects to the manifold, which is connected to the coolant inlet of the radiator; multiple electric cylinders and their electronically controlled heat dissipation are integrated into one unit, reducing the number of independent heat dissipation units, reducing space occupation and installation complexity, improving heat dissipation efficiency, saving vehicle installation space, and simplifying installation and maintenance while reducing production and manufacturing costs. Attached Figure Description

[0018] Figure 1 This is a schematic block diagram of a cooling system for an electric loader provided in an embodiment of this utility model;

[0019] In the diagram: 1. Water tank; 2. Radiator; 3. Cooling pump one; 4. Cooling pump two; 5. Boom driver; 6. Left boom electric cylinder; 7. Right boom electric cylinder; 8. Bucket driver; 9. Bucket electric cylinder; 10. Steering driver; 11. Left steering electric cylinder; 12. Right steering electric cylinder; 13. Travel controller; 14. Travel motor; 15. Manifold. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0021] Example 1

[0022] like Figure 1 As shown, an electric loader cooling system includes: a radiator 2; an inlet of a cooling pump connected to the coolant outlet of the radiator 2; and several sets of cooling pipes, one end of each set of cooling pipes connected to the outlet of the cooling pump, and the other end of each set of cooling pipes passing through the working device to be cooled along a set route and then connected to a manifold 15, which is connected to the coolant inlet of the radiator 2.

[0023] The coolant in radiator 2 is water, and radiator 2 is equipped with a water tank 1 for replenishing water to the system. Radiator 2 is equipped with a cooling fan for cooling radiator 2. All working devices to be cooled are equipped with temperature sensors, which are electrically connected to a controller for controlling the start, stop, and speed of the cooling fan.

[0024] The working device to be cooled includes: boom unit, tipping unit, steering unit and traveling unit; the cooling pumps include cooling pump 3 and cooling pump 4.

[0025] The outlet of cooling pump 3 is connected to cooling pipe 1 for cooling the boom unit and cooling pipe 2 for cooling the bucket unit. Cooling pipe 1 and cooling pipe 2 are connected to the outlet of cooling pump 3 via a tee. Cooling pipe 1 passes through boom actuator 5 and then connects to branch pipe 1 and branch pipe 2 via a tee. Branch pipe 1 passes through left boom electric cylinder 6 and then connects to manifold 15. Branch pipe 2 passes through right boom electric cylinder 7 and then connects to manifold 15. Cooling pipe 2 passes through bucket actuator 8 and bucket electric cylinder 9 in sequence and then connects to manifold 15. Branch pipe 1, branch pipe 2, and cooling pipe 2 are connected to manifold 15 or the coolant inlet of radiator 2 via a four-way connector.

[0026] The outlet of cooling pump 24 is connected to cooling pipe 3 for cooling the steering unit and cooling pipe 4 for cooling the travel unit. Cooling pipes 3 and 4 are connected to the outlet of cooling pump 24 via a tee. Cooling pipe 3 passes through steering drive 10 and then connects to branch pipes 3 and 4 via a tee. Branch pipe 3 passes through left steering electric cylinder 11 and then connects to manifold 15. Branch pipe 4 passes through right steering electric cylinder 12 and then connects to manifold 15. Cooling pipe 4 passes through travel controller 13 and travel motor 14 in sequence and then connects to manifold 15. Branch pipes 3, 4, and cooling pipe 4 are connected to manifold 15 or the coolant inlet of radiator 2 via a four-way connector.

[0027] The working principle of the cooling system of this utility model is as follows: Driven by water pump 3 and water pump 4, the coolant in the system is respectively delivered to the parallel channels formed by the boom driver 5 and its left boom electric cylinder 6 and right boom electric cylinder 7, the bucket driver 8 and its bucket electric cylinder 9, the travel controller 13 and its travel motor 14, and the steering driver 10 and its left steering electric cylinder 11 and right steering electric cylinder 12. This coolant cools the electric cylinders and their drivers, as well as the travel motor and its controller. The increased coolant temperature enters the radiator 2, and after being cooled by the radiator, it flows back to the suction ports of water pump 3 and water pump 4 to form a circulation. During the above-mentioned coolant circulation process, after the coolant enters the radiator 2, a cooling fan installed outside the radiator 2 provides air cooling for the coolant.

[0028] To save energy, reduce electricity consumption, and extend the loader's service life, the radiator fan's start-up, rotation speed, and stop control logic can be set according to the operating temperature limits of the travel motor and its controller, electric cylinder and its drive. The radiator fan's start and stop are controlled by the transmission signals from the temperature sensors built into the travel motor controller, boom drive, left and right boom electric cylinders, dump drive, dump electric cylinder, steering drive, and left and right steering electric cylinders.

[0029] When an electric loader is working, the travel motor and its controller generate heat due to the continuous output of speed and torque, and the electric cylinder and its drive continuously output force. When the temperature is too high, the motor performance is limited, the drive alarms, and thus the working efficiency of the electric loader is affected.

[0030] Therefore, the purpose of this utility model is to provide a cooling system for electric loaders, thereby reducing the temperature of these components and improving the working efficiency and reliability of the electric loader. This utility model integrates multiple electric cylinders and their electronic control cooling systems into one unit, directly absorbing heat from each working device through cooling pipes. This eliminates the need for separate cooling units or minimizes the number of individual cooling units, reducing space occupancy and installation complexity. While improving cooling efficiency, it also saves overall vehicle installation space, simplifies installation and maintenance, and reduces production and manufacturing costs.

[0031] Example 2

[0032] Based on the electric loader cooling system described in Embodiment 1, this embodiment provides an electric loader equipped with the electric loader cooling system described in Embodiment 1.

[0033] Compared with ordinary electric loaders, this utility model improves energy utilization, reduces environmental pollution, and reduces weight and installation complexity.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cooling system for an electric loader, characterized in that, include: Radiator (2); A cooling pump, the inlet of which is connected to the coolant outlet of the radiator (2); Several sets of cooling pipes, one end of each set of cooling pipes is connected to the outlet of the cooling pump, and the other end of each set of cooling pipes passes through the working device to be cooled along a set route and is connected to the manifold (15), the manifold (15) is connected to the coolant inlet of the radiator (2).

2. The electric loader cooling system according to claim 1, characterized in that, The working device to be cooled includes: boom unit, tipping bucket unit, steering unit, and traveling unit.

3. The electric loader cooling system according to claim 2, characterized in that, The cooling pump includes a first cooling pump (3) and a second cooling pump (4); the outlet of the first cooling pump (3) is connected to a first cooling pipe for cooling the boom unit and a second cooling pipe for cooling the bucket unit; the outlet of the second cooling pump (4) is connected to a third cooling pipe for cooling the steering unit and a fourth cooling pipe for cooling the traveling unit.

4. The electric loader cooling system according to claim 3, characterized in that, The first and second cooling pipes are connected to the outlet of the first cooling pump (3) via a tee. The cooling pipe passes through the boom driver (5) and is connected to branch pipe one and branch pipe two respectively via a tee. Branch pipe one passes through the left boom electric cylinder (6) and is connected to the manifold (15). Branch pipe two passes through the right boom electric cylinder (7) and is connected to the manifold (15). The second cooling pipe passes through the tipping bucket driver (8) and the tipping bucket electric cylinder (9) in sequence and then connects to the manifold (15).

5. The electric loader cooling system according to claim 3, characterized in that, Cooling pipes three and four are connected to the outlet of cooling pump two (4) via a tee. The cooling pipe three passes through the steering drive (10) and is connected to branch pipe three and branch pipe four respectively through a tee. The branch pipe three passes through the left steering electric cylinder (11) and is connected to the manifold (15). The branch pipe four passes through the right steering electric cylinder (12) and is connected to the manifold (15). The cooling pipes pass through the walking controller (13) and the walking motor (14) in sequence and then connect to the manifold (15).

6. The electric loader cooling system according to claim 1, characterized in that, The coolant in the radiator (2) is water, and the radiator (2) is equipped with a water tank (1).

7. The electric loader cooling system according to claim 1, characterized in that, The radiator (2) is equipped with a cooling fan for cooling the radiator (2).

8. The electric loader cooling system according to claim 7, characterized in that, All working devices to be cooled are equipped with temperature sensors, which are electrically connected to a controller for controlling the start, stop and speed of the cooling fan.

9. An electric loader, characterized in that, The electric loader is equipped with the electric loader cooling system as described in any one of claims 1 to 8.

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