Chain type semitrailer with speed chain power supply

Abstract

The utility model relates to a chain type semitrailer with a speed chain power supply, which comprises a semitrailer frame, the front end of the semitrailer frame is used for being connected with a tractor, a speed chain operation device is arranged on the semitrailer frame, and the speed chain operation device comprises a speed chain and a driving device used for driving the speed chain. The semitrailer frame is further provided with a speed chain power supply used for supplying power to the driving device. The speed chain power supply is fixedly arranged below the semitrailer frame. The distance between the speed chain power supply and the front end of the semitrailer frame is not larger than 1 / 2 of the length of the semitrailer frame and not smaller than 1 / 3 of the length of the semitrailer frame. The speed chain power supply comprises a rechargeable battery and an inverter, and a charging port is formed in the rear end of the semitrailer frame and used for charging the battery. The speed chain power supply is additionally arranged on the semitrailer frame to supply power to the speed chain driving device, the number of times that the semitrailer needs to be connected with the mains supply can be reduced, labor intensity of operators is reduced, and operation risks in rainy days are avoided as much as possible.

Description

Technical Field

[0001] The utility model relates to a chain-type semitrailer with a double-speed chain power supply. Background Art

[0002] There is a chain semi-trailer whose double-speed chain is driven by multiple servo motors, and the servo motors are powered by external AC power. Therefore, on the double-speed chain production line, a AC power interface needs to be set up to power the servo motor. Before the double-speed chain operation, the operator needs to manually plug in the aviation connector to connect the vehicle to the AC power. Therefore, there is a risk of short circuit or electric shock in rainy days. The aviation connector must be plugged in before each operation and unplugged after the operation, which increases the labor intensity of the operator. Utility Model Content

[0003] In order to solve the problem that the above-mentioned chain-type semi-trailer requires personnel to frequently manually plug and unplug the power supply connector, the utility model provides a chain-type semi-trailer with a double-speed chain power supply based on the above-mentioned chain-type semi-trailer.

[0004] The utility model provides a chain-type semitrailer with a double-speed chain power supply, which comprises a semitrailer frame. The front end of the semitrailer frame is used to connect a tractor. A double-speed chain operating device is provided on the semitrailer frame. The double-speed chain operating device comprises a double-speed chain and a driving device for driving the double-speed chain. The semitrailer frame is also provided with a double-speed chain power supply for supplying power to the driving device. The double-speed chain power supply is fixedly arranged under the semitrailer frame. The distance between the double-speed chain power supply and the front end of the semitrailer frame is not greater than 1 / 2 of the length of the semitrailer frame and not less than 1 / 3 of the length of the semitrailer frame. The double-speed chain power supply comprises a rechargeable battery and an inverter. A charging port is provided at the rear end of the semitrailer frame for charging the battery.

[0005] Adding a double-speed chain power supply to the semi-trailer frame to power the double-speed chain drive device can reduce the number of times the vehicle needs to be connected to the mains, reduce the labor intensity of operators, and avoid the risk of working in rainy days as much as possible. The double-speed chain power supply is located in the front position of the semi-trailer frame, which can keep the center of gravity of the semi-trailer frame in a suitable position. Placing the charging port at the rear end of the semi-trailer frame can shorten the distance between the charging port and the mains interface during charging.

[0006] In several embodiments of the utility model, a power supply bracket is fixed to the lower side of the semi-trailer frame. The power supply bracket is an E-shaped structure, forming a battery mounting position and an inverter mounting position. The battery and the inverter are respectively fixed in the battery mounting position and the inverter mounting position.

[0007] In some embodiments of the present invention, a C-shaped connector is fixedly provided on the lower side of the inverter, and the C-shaped connector is fixedly connected to the power supply bracket.

[0008] In some embodiments of the utility model, the battery is a lithium battery pack, the battery is fixed on a transition bracket, the side of the battery is fixedly connected to the transition bracket, a rubber pad is provided between the lower side of the battery and the transition bracket, a shock absorber is fixedly provided on the lower side of the transition bracket, and the shock absorber is fixedly connected to the power supply bracket.

[0009] In some embodiments of the present utility model, a power shield is provided on the outer side of the power support, and the power support and the power shield are combined to form a closed space, and the battery and the inverter are located in the closed space.

[0010] In several embodiments of the utility model, the power supply shield includes a front shield, a rear shield, a left shield, a right shield and an upper shield which are respectively arranged on the front, rear, left, right and upper sides of the power supply bracket, the upper shield is fixed to the semi-trailer frame, the front shield, the rear shield, the left shield and the right shield are fixed to the power supply bracket, and ventilation holes are provided on the left shield and the right shield corresponding to the batteries, and the ventilation holes are arranged at a certain distance from the batteries.

[0011] In some embodiments of the present utility model, a shock-absorbing pad is provided between the power supply bracket and the semi-trailer frame.

[0012] In some embodiments of the present invention, the charging port is disposed on the left / right side of the semi-trailer frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an assembly structure diagram of a semi-trailer frame and a power supply assembly according to an embodiment of the utility model;

[0014] Figure 2 for Figure 1 A cross-sectional view of the semi-trailer frame and power supply assembly shown;

[0015] Figure 3 for Figure 1 An exploded view of the power supply assembly shown;

[0016] Figure 4 for Figure 3 Exploded view of component A shown. DETAILED DESCRIPTION

[0017] The difference between the present utility model and the existing chain-type semi-trailer is that a power supply assembly for supplying power to the driving device (servo motor) of the double-speed chain is installed on the semi-trailer frame, so as to reduce the number of times the vehicle needs to be connected to the mains, reduce the labor intensity of the operators, and avoid the risk of rainy day operations as much as possible. Therefore, the following only describes the structure and assembly of the power supply assembly, and the other structures of the semi-trailer can refer to the patent document CN113320608A.

[0018] The present invention will be further described below in conjunction with the accompanying drawings and an embodiment of the present invention.

[0019] See also Figures 1 to 4 In one embodiment, the power supply assembly installed on the semi-trailer frame 100 includes a double-speed chain power supply, a power support 1, a power shield 2 and a charging port 3. The double-speed chain power supply includes a rechargeable battery 4 and an inverter 5. The battery 4 supplies power to the driving device of the double-speed chain through the inverter 5. The battery 4 and the inverter 5 are fixed under the semi-trailer frame 100 through the power support 1. The power shield 2 is used to protect the battery 4 and the inverter 5. The power support 1 and the power shield 2 are combined to form a closed space. The battery 4 and the inverter 5 are located in the closed space. The charging port 3 is used to connect to the mains to charge the battery 4. In other embodiments of the utility model, the double-speed chain power supply can also be fixed on the semi-trailer frame 100 in other ways.

[0020] The front end of the semi-trailer frame 100 is used to connect to the tractor. Figure 1 Considering the center of gravity of the semi-trailer, the double-speed chain power supply is arranged at a front position in the semi-trailer frame 100, and the distance from the front end of the semi-trailer frame 100 is not more than 1 / 2 of the length of the semi-trailer frame 100, and not less than 1 / 3 of the length of the semi-trailer frame 100. Considering that on the double-speed chain operation production line, the rear end of the semi-trailer frame 100 is close to the cargo platform and the mains interface, therefore, the charging port 3 is arranged close to the rear end of the semi-trailer frame 100. The charging port 3 is arranged on the side of the semi-trailer frame 100 like the present embodiment, that is, facing the side of the semi-trailer frame 100, which is more convenient for the plugging and unplugging of the cable. Whether it is arranged on the right side or the left side can be designed according to actual needs. In other embodiments of the utility model, the charging port 3 can also be arranged on the lower side of the semi-trailer frame 100, facing the bottom of the semi-trailer frame 100.

[0021] See also Figure 4 The power supply bracket 1 is an E-shaped structure, including a bottom plate and three groups of connecting frames arranged at intervals along the front-to-back direction on the upper side of the bottom plate, so as to form a battery mounting position and an inverter mounting position, and the battery 4 and the inverter 5 are respectively fixed in the battery mounting position and the inverter mounting position. The connecting frames on both sides of the battery mounting position are provided with reinforcing cross bars along the left-right direction to prevent the power supply bracket 1 from deforming and causing pressure on the battery 4. A shock-absorbing pad 11 is provided between the connecting frame and the semi-trailer frame 100 to prevent the vehicle from shaking and causing power supply component failure. In other embodiments of the utility model, the power supply bracket 1 can also be other structures.

[0022] Two C-shaped connectors 51 are fixed on the lower side of the inverter 5, and the fixing method is welding or screw connection. The C-shaped connector 51 is fixedly connected to the bottom plate of the power supply bracket 1 by bolts and nuts. The battery 4 is a lithium battery pack, and the battery 4 is fixed on a transition bracket 41. The side of the battery 4 is fixedly connected to the transition bracket 41 by multiple screws. A rubber pad 42 is provided between the lower side of the battery 4 and the transition bracket 41. A shock absorber 43 is fixed on the lower side of the transition bracket 41, and the fixing method is screw connection. The shock absorber 43 is fixedly connected to the power supply bracket 1 by bolts and nuts to prevent vehicle bumps from causing battery failure. In other embodiments of the utility model, the battery 4 and the inverter 5 can also be fixed to the power supply bracket 1 by other methods.

[0023] The power supply shield 2 includes a front shield 21, a rear shield 22, a left shield 23, a right shield 24 and an upper shield 25 which are respectively arranged on the front side, rear side, left side, right side and upper side of the power supply support 1. The upper shield 25 includes two shields corresponding to the battery 4 and the inverter 5 respectively. The two shields are welded and fixed on the semi-trailer frame 100 respectively. The front shield 21, the rear shield 22, the left shield 23 and the right shield 24 are fixed on the power supply support 1 by screws. The left shield 23 and the right shield 24 also include two shields corresponding to the battery 4 and the inverter 5 respectively. The shield corresponding to the battery 4 is provided with a plurality of ventilation holes VT corresponding to the battery 4, and the shield is an open box-shaped structure with a heat dissipation space, that is, the ventilation holes VT are arranged at a certain distance from the battery 4 to solve the heat dissipation problem of the battery 4. In other embodiments of the utility model, the power supply shield 2 can also be other structures.

[0024] A person skilled in the art may refer to the prior art to design a DC power input system based on the above-mentioned power supply assembly. For example, the DC power input system may be composed of a vehicle lead-acid battery, a main switch, the above-mentioned lithium battery pack, a low-voltage relay, a PLC controller, a switch circuit breaker, the above-mentioned inverter, a servo controller, the above-mentioned servo motor, etc. The main switch is used to control the on and off of the low-voltage relay, and the on and off of the switch circuit breaker is controlled by the PLC controller.

[0025] The lithium battery pack uses a general-purpose vehicle power battery with a voltage platform of DC334.8V. It is equipped with a BMS power management system to manage the charging and discharging of the battery and safety protection, and uses the CAN bus communication protocol to communicate with other components. The PLC controller is equipped with a CAN bus communication module to exchange data with the BMS power management system. The automotive lead-acid battery is DC24V, which is used to power the PLC controller and the BMS power management system. The inverter is used to convert DC334.8V to AC220V to power the servo controller and servo motor. When discharging, first start the BMS power management system and PLC controller through a DC24V power supply. The PLC controller provides a DC24V signal to the BMS power management system through the CAN bus communication module. After receiving the DC24V signal, the BMS power management system is ready for discharge. At this time, as long as the load is connected, the power battery can be discharged.

Claims

1. A chain-type semitrailer with a double-speed chain power supply, comprising a semitrailer frame (100), the front end of the semitrailer frame (100) being used to connect to a tractor, a double-speed chain operating device being provided on the semitrailer frame (100), the double-speed chain operating device comprising a double-speed chain and a driving device for driving the double-speed chain, characterized in that: The semitrailer frame (100) is also provided with a double-speed chain power supply for supplying power to the drive device, and the double-speed chain power supply is fixedly arranged below the semitrailer frame (100); the distance between the double-speed chain power supply and the front end of the semitrailer frame (100) is not greater than 1 / 2 of the length of the semitrailer frame (100) and not less than 1 / 3 of the length of the semitrailer frame (100); the double-speed chain power supply includes a rechargeable battery (4) and an inverter (5), and a charging port (3) is provided at the rear end of the semitrailer frame (100) for charging the battery (4).

2. The chain-type semitrailer with a double-speed chain power supply as claimed in claim 1, characterized in that: A power supply bracket (1) is fixed to the lower side of the semi-trailer frame (100); the power supply bracket (1) is an E-shaped structure, forming a battery (4) mounting position and an inverter (5) mounting position; the battery (4) and the inverter (5) are respectively fixed in the battery (4) mounting position and the inverter (5) mounting position.

3. The chain-type semitrailer with a double-speed chain power supply as claimed in claim 2, characterized in that: A C-shaped connecting piece (51) is fixedly provided on the lower side of the inverter (5), and the C-shaped connecting piece (51) is fixedly connected to the power supply bracket (1).

4. The chain-type semitrailer with a double-speed chain power supply as claimed in claim 2, characterized in that: The battery (4) is a lithium battery pack, the battery (4) is fixed on a transition bracket (41), the side of the battery (4) is fixedly connected to the transition bracket (41), a rubber pad (42) is provided between the lower side of the battery (4) and the transition bracket (41), a shock absorber (43) is fixedly provided on the lower side of the transition bracket (41), and the shock absorber (43) is fixedly connected to the power supply bracket (1).

5. The chain-type semitrailer with a double-speed chain power supply as claimed in claim 2, characterized in that: A power supply shield (2) is provided on the outside of the power supply bracket (1); the power supply bracket (1) and the power supply shield (2) are combined to form a closed space; the battery (4) and the inverter (5) are located in the closed space.

6. The chain-type semitrailer with a double-speed chain power supply as claimed in claim 5, characterized in that: The power supply shield (2) comprises a front shield, a rear shield, a left shield, a right shield and an upper shield respectively arranged on the front side, rear side, left side, right side and upper side of the power supply bracket (1); the upper shield is fixed to the semi-trailer frame (100); the front shield, the rear shield, the left shield and the right shield are fixed to the power supply bracket (1); ventilation holes (VT) are arranged on the left shield and the right shield corresponding to the battery (4); the ventilation holes (VT) are arranged at a certain distance from the battery (4).

7. The chain-type semitrailer with a double-speed chain power supply as claimed in claim 2, characterized in that: A shock-absorbing pad (11) is provided between the power supply bracket (1) and the semitrailer frame (100).

8. The chain-type semitrailer with a double-speed chain power supply as claimed in claim 1, characterized in that: The charging port (3) is arranged on the left / right side of the semitrailer frame (100).

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