CN216761523U

CN216761523U - Lateral top-hanging type battery replacement system of electric truck

Info

Publication number: CN216761523U
Application number: CN202220524548.6U
Authority: CN
Inventors: 钱磊; 蒋德南; 朱宇涛; 余志钢; 吴丹妮; 许雪峰
Original assignee: Wuxi Fantexi Iot Technology Co ltd
Current assignee: Jiangyin Pavote Lifting Machinery Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-06-17
Anticipated expiration: 2032-03-10

Abstract

The utility model relates to a lateral top-hung type battery replacing system of an electric truck, which comprises a charging stack, a battery replacing mechanism and a truck parking platform, wherein the charging stack is arranged on the top of the charging stack; the charging stack is a multilayer three-dimensional stack; the battery replacement mechanism is a three-degree-of-freedom transfer mechanism and comprises a transverse moving mechanism, a lifting mechanism and a translation mechanism; the transverse moving mechanism comprises a ground rail, a sky rail, a ground vehicle and a crown block which are respectively matched with the ground rail and the sky rail; a lifting mechanism is arranged between the ground vehicle and the crown block; the lifting mechanism comprises vertical rails positioned on two sides, and a lifting vehicle is arranged on the vertical rails; a lifting platform is fixed on the lifting car, and a translation mechanism is horizontally arranged in the middle of the lifting platform; the translation mechanism main body is a telescopic mechanism, and a fixed seat stage of the telescopic mechanism is fixedly arranged on the lifting platform; and a battery hanger is arranged below the last-stage extending arm of the telescopic mechanism. The electric truck power changing mechanism is simple in structure and small in occupied area, and can meet the power changing requirement of the electric truck.

Description

Lateral top-hanging type battery replacement system of electric truck

Technical Field

The utility model relates to a lateral battery replacement system for an electric truck, in particular to a top-hung battery replacement system for the electric truck, and belongs to the technical field of new energy automobiles.

Background

At present, electric trucks are widely applied to industrial and mining occasions, wharfs and other occasions, different from common household motor vehicles, generally adopt a battery replacement mode to quickly replace a battery pack of the truck so as to enable the truck to be put into use again in order to improve the service efficiency of the truck.

The Chinese patent publication No. CN211764962U discloses a heavy truck with battery replacement and charging functions, and discloses a truck structure with battery replacement functions, wherein a battery box capable of being detached and replaced is fixedly arranged at the rear part of a cab and the front part of a cargo platform of the truck; at present, most electric trucks adopt similar layout design, and after a hopper, a carriage and other parts are installed on a cargo platform, batteries can be replaced only by hoisting the batteries from the top and horizontally removing the batteries. Therefore, aiming at the battery replacement requirement of the truck, the battery replacement operation mechanism is obviously different from the conventional battery replacement operation mechanism of the electric automobile.

For the electric truck, because the battery pack needs to be hoisted and replaced, a battery replacement system with a travelling structure is generally adopted, and the battery pack is hoisted and replaced from the top of the truck. A truck power changing station with the Chinese patent publication number of CN214728296U, and a power changing method and a system thereof of an intelligent power changing station with the Chinese patent publication number of CN112848964A all adopt a travelling structure, cross over a parking area of an electric truck and are hoisted from the top. However, in the traveling crane top-hung type system, the charging area is mostly vertical to the traveling direction of the truck, so that the transverse occupied space is large; and because the top is got and is put, cause the charging area can only the individual layer tiling to set up, in the same area, the battery package that can save to charge is small in quantity.

Therefore, aiming at the problems, the high-efficiency electric heavy truck power exchanging station with the Chinese patent publication No. CN112123320A discloses a lateral power exchanging station, which enables a charging and discharging area to be parallel to the driving direction of a truck, thereby reducing the transverse occupied space; a movable battery replacement station, a battery replacement method, a terminal and a medium with Chinese patent publication No. CN112721723A, and basically adopt a similar general scheme; although the battery pack falls from the upper part, the side battery replacing mechanism can adopt a top-hanging or bottom-supporting mode and is driven by a telescopic mechanism to pack the battery pack into the electric truck without a fixed traveling crane frame (a heavy truck battery unilateral replacing station with the Chinese patent publication No. CN210634534U, a new energy re-truck replacing station with the Chinese patent publication No. CN215552604U, although the traveling crane frame does not stride over the truck, the traveling crane frame is also fixedly supported by a cantilever for moving the traveling crane). For such non-driving type battery replacing mechanism, reference may also be made to documents such as a bottom-supported heavy truck battery carrying cart with chinese patent publication No. CN214001413U, a vehicle for carrying heavy truck batteries with chinese patent publication No. CN214164821U, and a side-latch heavy truck battery carrying cart with chinese patent publication No. CN 215284451U.

Further, a lateral battery charging and replacing system of a pure electric heavy-duty truck with chinese patent publication No. CN211519318U is proposed, in which a battery box charging and storing platform is arranged in a three-dimensional (at least 2 layers up and down), and can store one time more battery packs, but in this type of battery charging and replacing system, because the storage area is arranged in multiple layers, a "stacking system" will be higher than a single-layer storage area, and because the battery packs used by the electric trucks are very heavy, when the battery packs are taken and placed, the gravity center of the stacking system will be very high, resulting in a high risk of overturning of the whole machine.

In view of the defects in the prior art, it is necessary to further improve the lateral top-hung battery replacement system of the electric truck, reduce the risk in the operation process, and improve the reliability and stability of the battery replacement process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lateral top-hung type battery replacing system for an electric truck, which reduces the space occupied area of a battery replacing station and improves the storage and charging quantity of battery packs in unit area; the safety and reliability of the equipment operation are improved, and the reliability and the stability of the battery replacement process are guaranteed.

In order to achieve the purpose of the utility model, the utility model provides a lateral top-hung type battery replacement system of an electric truck, which comprises a charging stack, a battery replacement mechanism and a truck parking platform;

the battery replacing mechanism is positioned between the charging stack and the truck parking platform and arranged in parallel; the charging stack and the battery replacing mechanism are arranged along the inlet and outlet direction of the electric truck; the charging stack is a multilayer three-dimensional stack;

the battery replacement mechanism is a three-degree-of-freedom transfer mechanism and comprises a transverse moving mechanism, a lifting mechanism and a translation mechanism;

the transverse moving mechanism comprises a ground rail, a top rail, a ground vehicle and a crown block which are respectively matched with the ground rail and the top rail;

a lifting mechanism is arranged between the ground vehicle and the crown block; the lifting mechanism comprises vertical rails positioned on two sides, and a lifting vehicle is arranged on the vertical rails; a lifting platform is fixed on the lifting vehicle, and a translation mechanism is horizontally arranged in the middle of the lifting platform;

the translation mechanism main body is a telescopic mechanism, and a fixed seat stage of the telescopic mechanism is fixedly arranged on the lifting platform;

and a battery hanger is arranged below the last-stage extending arm of the telescopic mechanism.

As a further improvement of the utility model, the ground rail is two rails, the wheel set of the ground vehicle is embedded and clamped on the ground rail, and the ground vehicle is provided with a driving motor.

Still further, the sky rail is the monorail, the overhead traveling crane passes through the wheelset and presss from both sides the both sides of sky rail.

As a further improvement of the present invention, the driving mechanism and the driving motor of the lifting mechanism are mounted at a lower portion, and the lifting vehicle is driven by the driving mechanism to move up and down along the vertical rail.

As a further improvement of the utility model, the main body telescopic mechanism of the translation mechanism is a three-stage telescopic mechanism;

the side of telescopic machanism is equipped with the drive shaft, the drive shaft links to each other with telescopic drive mechanism.

Furthermore, the driving shaft of the telescopic mechanism is also connected with an encoder.

The lateral top-hung type battery replacement system of the electric truck adopts multilayer three-dimensional stacking, so that the floor area of a charging area is saved; the reliability and the stability of the whole mechanism are improved by adopting a vertical transverse moving mechanism and arranging a ground rail and a sky rail; then on translation mechanism, adopt telescopic machanism, practice thrift flexible space, make under the whole equipment withdrawal state, can not take place to collide with battery stack and electric truck to simplify the structural component, reduce the equipment volume, satisfy electric truck and trade the electric demand.

Drawings

Fig. 1 is a schematic view of an overall structure of a lateral top-hung type battery replacement system of an electric truck in a use state 1;

fig. 2 is a schematic view of an overall structure of a lateral top-hung type battery replacement system of an electric truck in a use state of the utility model 2;

FIG. 3 is a side view of the electric truck side-hung type battery replacement system according to the present invention;

fig. 4 is a whole top view of the electric truck side top-hung type battery replacement system in the use state;

fig. 5 is a schematic overall structure diagram 1 of the electric truck side top-hung type battery replacement system of the present invention;

fig. 6 is a schematic overall structural diagram of the electric truck side top-hung type battery replacement system of the present invention 2;

fig. 7 is a schematic overall structure diagram 3 of the electric truck lateral top-hung type battery replacement system of the present invention;

FIG. 8 is a schematic view of the overall structure of the translation mechanism of the present invention;

FIG. 9 is a schematic view of the overall structure of the telescopic mechanism of the present invention;

fig. 10 is a front view of the expansion mechanism of the present invention in an expanded state.

Detailed Description

The utility model is further described below with reference to the following figures and specific examples.

As shown in fig. 1 to 4, the present invention is a schematic diagram of a usage state of a side top-hung type battery replacement system for an electric truck; the utility model discloses a lateral top-hung type battery replacing system for an electric truck, which comprises a charging stack, a battery replacing mechanism and a truck parking platform; the charging stack, the battery replacing mechanism and the truck parking platform are arranged along the in-and-out direction of the electric truck, so that the longitudinal floor space can be saved; the charging stack is a multi-layer three-dimensional stack (two-layer stack in the figure of the embodiment), and can fully utilize the height space to store the battery pack.

The battery replacement mechanism is a three-degree-of-freedom transfer mechanism and comprises a transverse movement mechanism, a lifting mechanism and a translation mechanism.

The transverse moving mechanism mainly comprises a ground rail 11, a sky rail 12, a ground vehicle 21 and a crown block 22 which are respectively matched with the ground rail and the sky rail; in order to improve the stability, the ground rail 11 is two rails, wheel sets of the ground vehicle 21 are embedded and clamped on the ground rail 11, and the ground vehicle 21 is provided with a driving motor; the head rail 12 may be of a single rail design, with the crown blocks 22 sandwiching the head rail 12 on both sides by wheel sets. Because the battery pack for the electric truck is generally heavy (the self weight reaches more than 500 kg), and can generate larger overturning torque together with a lifting appliance, an extended translation mechanism and the like, the battery pack for the electric truck is limited from top to bottom through the ground vehicle 21 and the overhead vehicle 22, the suspended design of the top of the conventional translation mechanism is broken, the reliability and the stability of the operation of the whole battery replacing mechanism can be well improved, and the overturning is prevented.

A lifting mechanism 3 is arranged between the ground vehicle 21 and the crown block 22, and as shown in fig. 5-7, the lifting mechanism 3 mainly comprises vertical rails 31 at two sides, and a lifting vehicle 32 is arranged on the vertical rails; a driving mechanism of the lifting mechanism 3 and a driving motor 33 are preferably installed at a lower portion, and the lifting truck 32 is driven to move up and down along the vertical rail by a chain or the like; a lifting platform 34 is fixed on the lifting vehicle 32, and a translation mechanism 4 is horizontally arranged in the middle of the lifting platform.

With further reference to fig. 8-10, the main body of the translation mechanism 4 is a telescopic mechanism 41, in the present embodiment, a three-stage telescopic mechanism (refer to VIPER X telescopic fork manufactured by MIAS/MIAS corporation) is provided, a fixing seat stage 413 of the three-stage telescopic mechanism is fixedly mounted on the lifting platform 34, and then a driving shaft 42 is extended from a side surface of the three-stage telescopic mechanism, and the driving shaft 42 can be connected with a telescopic driving mechanism 43 and an encoder for driving and monitoring a distance of extension. The fixing seat stage 413 is driven by the telescopic driving mechanism 43 to extend the second-stage arm 412 and the third-stage arm 411 to two sides respectively relative to the lifting platform 34, that is, to a truck parking platform or to a charging stack. And a battery hanger 5 is arranged below the third-stage arm 411 and is butted with a top mechanism of a battery pack to fix the battery pack.

When the lateral top-hung type battery replacing system of the electric truck is put into use, the electric truck to be replaced drives onto a truck parking platform first and is parked as straight as possible; when the electric truck is stable, the battery replacing mechanism is started;

(1) taking down a battery pack to be charged on the electric truck; identifying a location of the electric truck, and a location of the battery pack; the transverse moving mechanism starts to move and moves to the position of the battery pack; simultaneously, the lifting mechanism 3 starts to move, and the lifting platform 34 is lifted to a sufficient height above the battery pack; after the battery pack is stabilized, the translation mechanism 4 is started, and the battery hanger 5 extends out and is extended to the position right above the battery pack; then the lifting mechanism 3 slowly descends to enable the battery hanger 5 to just fall on the battery pack and be butted and locked with the battery pack; and the lifting mechanism 3 is lifted again to separate the battery pack from the electric truck, after the battery pack is separated, the translation mechanism 4 is started to retract the battery hanger 5 and the battery pack into the battery replacing mechanism, and the operation of taking down the battery pack is finished.

On the basis, the system gives out vacancy information in the charging stack, the transverse moving mechanism and the lifting mechanism 3 move the battery pack to the position and height of the vacancy, then the transverse moving mechanism 4 is started again, the battery hanger 5 and the battery pack extend above the vacancy, then the lifting mechanism 3 is started to slowly descend, the battery pack falls into the vacancy of the charging stack, the battery pack starts to be charged, the battery hanger 5 is loosened from being connected with the battery pack, the lifting mechanism 3 ascends for a short distance, and after the battery hanger 5 is separated from the battery pack, the transverse moving mechanism 4 retracts to enable the empty battery hanger 5 to return to the battery replacing mechanism.

(2) Replacing the electric truck with a new battery pack; the system gives the information of available battery packs in the charging stack, and the transverse moving mechanism and the lifting mechanism 3 are started to drive the empty battery hanger 5 to move to the position and above the height of the battery pack; then starting the translation mechanism 4, and extending the battery hanger 5 above the battery pack; then starting the lifting mechanism 3 to slowly descend to enable the battery hanger 5 to fall above the battery pack, and then starting the butt joint locking mechanism to lock the battery pack; the lifting mechanism 3 is lifted again to separate the bottom of the battery pack from the base in the charging stack; and starting the translation mechanism 4, and moving the battery hanger 5 together with the battery pack into the battery replacement mechanism.

Then the transverse moving mechanism and the lifting mechanism 3 are started again, and the battery pack is moved to a battery pack storage position of the electric truck with the battery hanging bracket 5 and the battery pack; then the translation mechanism 4 is started to extend the battery hanger 5 and the battery pack into the electric truck and stop right above the battery pack storage position; starting the lifting mechanism 3 to slowly descend, and enabling the battery pack to fall into the electric truck to be in butt joint with a butt joint mechanism arranged on the electric truck; and unlocking the locking mechanism between the battery hanger 5 and the battery pack, slowly lifting the lifting mechanism 3 for a certain distance to separate the battery hanger 5 from the battery pack, starting the translation mechanism 4, and withdrawing the empty battery hanger 5 into the battery replacement mechanism again.

At the moment, the electric truck finishes power exchange, power supply is recovered, and the electric truck drives away from the truck parking platform.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The electric truck lateral top-hanging type battery replacing system comprises a charging stack, a battery replacing mechanism and a truck parking platform;

the battery replacing mechanism is positioned between the charging stack and the truck parking platform and arranged in parallel; the charging stack and the battery replacing mechanism are arranged along the inlet and outlet direction of the electric truck;

the charging stack is characterized by being a multilayer three-dimensional stack;

the transverse moving mechanism comprises a ground rail, a sky rail, a ground vehicle and a crown block which are respectively matched with the ground rail and the sky rail;

a lifting mechanism is arranged between the ground vehicle and the crown block; the lifting mechanism comprises vertical rails positioned on two sides, and a lifting vehicle is arranged on the vertical rails; a lifting platform is fixed on the lifting car, and a translation mechanism is horizontally arranged in the middle of the lifting platform;

2. The electric truck lateral top-hung type battery replacement system as claimed in claim 1, wherein the ground rail is two rails, wheel sets of the ground vehicle are embedded and clamped on the ground rail, and the ground vehicle is provided with a driving motor.

3. The electric truck side top-hung type battery replacement system according to claim 2, wherein the overhead rail is a single rail, and the overhead crane clamps two sides of the overhead rail through wheel sets.

4. The electric power switching system of claim 1, wherein the driving mechanism and the driving motor of the lifting mechanism are mounted at a lower portion, and the lifting vehicle is driven by the driving mechanism to move up and down along the vertical rail.

5. The electric truck lateral top-hung type battery replacement system as claimed in claim 1, wherein the main body telescoping mechanism of the translation mechanism is a three-stage telescoping mechanism;

6. The electric truck side top-hung battery swapping system as claimed in claim 5, wherein an encoder is further connected to the drive shaft of the telescoping mechanism.