CN113335051A - Fixing device for battery replacement pack of truck and operation method of fixing device - Google Patents
Fixing device for battery replacement pack of truck and operation method of fixing device Download PDFInfo
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- CN113335051A CN113335051A CN202110538639.5A CN202110538639A CN113335051A CN 113335051 A CN113335051 A CN 113335051A CN 202110538639 A CN202110538639 A CN 202110538639A CN 113335051 A CN113335051 A CN 113335051A
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 21
- 230000000712 assembly Effects 0.000 claims abstract description 3
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- 230000008878 coupling Effects 0.000 claims description 17
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- 238000005859 coupling reaction Methods 0.000 claims description 17
- 230000035939 shock Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 3
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- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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Abstract
本发明公开了一种卡车换电电池包的固定装置及其运行方法，其特征在于：包括电池包和车架底座；所述的电池包的底部安装有锁紧机构；所述的车架底座设置有固定电池包的中间连接架；所述的中间连接架侧边上设置有若干组Y轴向导向支架，每组Y轴向导向支架的端部为相向倾斜的斜面；Y轴向导向支架上设置有Y轴向的锁紧销孔；所述的锁紧机构包括动力机构，动力机构通过一X轴向的中间传动轴与至少一组锁紧组件传动连接；所述的锁紧组件包括四边形连杆和穿过对顶角的丝杆，丝杆与中间传动轴同轴传动；四边形连杆的另一组对角上设置有沿Y轴方向上伸缩的锁紧销。通过合理设置梯形丝杆的螺纹升角保证丝杆有自锁功能，另外通过中间轴把减速机高速轴动力引到电池包侧面。
The invention discloses a fixing device for a truck battery replacement battery pack and its operation method, which are characterized by comprising a battery pack and a frame base; a locking mechanism is installed on the bottom of the battery pack; and the frame base is installed An intermediate connection frame for fixing the battery pack is provided; several groups of Y-axis guide brackets are arranged on the side of the intermediate connection frame, and the ends of each group of Y-axis guide brackets are inclined surfaces inclined toward each other; the Y-axis guide brackets A Y-axis locking pin hole is arranged on the upper part; the locking mechanism includes a power mechanism, and the power mechanism is connected with at least one group of locking assemblies through an X-axis intermediate transmission shaft; the locking assembly includes The quadrilateral connecting rod and the lead rod passing through the opposite corners are coaxially driven with the intermediate transmission shaft; the other group of the opposite corners of the quadrilateral connecting rod is provided with locking pins that extend and retract along the Y-axis direction. The thread lift angle of the trapezoidal lead screw is reasonably set to ensure that the lead screw has a self-locking function, and the power of the high-speed shaft of the reducer is guided to the side of the battery pack through the intermediate shaft.
Description
Technical Field
The invention relates to a fixing device for a truck battery replacement pack and an operation method thereof, and belongs to the technical field of automobile battery replacement.
Background
At present, the battery replacement of the truck is developed vigorously, and the battery pack can bear various impacts and vibrations due to the jolt of the road surface and other reasons during the driving process of the truck. How to ensure the fixation, shock absorption and reliable connection (especially electrical) of the battery pack after the battery pack is replaced is a great problem. At present, there are many patent technical authorizations or applications, such as [ CN 110920461 a ] [ CN 110978982A ] [ CN 110466386A ], etc., and the common features of the above patents are:
1. an air compressor carried by a truck is used as a power source;
2. the locking mechanism is fixed on a truck frame and is controlled by the truck;
3. the male and female heads of the connector are respectively fixed on the frame base and the battery pack frame;
4. the self-locking is realized by the cooperation of a compression spring and a spring pin.
The advantages of the above solution are: the air compressor of the automobile is fully utilized, the structure is simple, and the economical efficiency is good. However, these solutions also have a number of disadvantages such as: the battery pack can be fixed on a truck but cannot be fixed in a battery replacement station (required during transportation); the position of the lock pin cannot be accurately controlled by means of aerodynamic force, and clamping stagnation is easy to occur; the self-locking reliability is poor; the male and female heads of the connector continuously bear the vibration of the vehicle when the vehicle runs, so that the connector is in failure or even fails; it is difficult to manually lock or unlock the battery pack in an emergency state.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a fixing device for a battery replacing bag of a truck, which can well solve the problems of safe and reliable connection, fixation and shock absorption of the battery replacing bag on a heavy truck.
The purpose of the invention is realized by the following technical scheme:
a fixing device for a truck battery replacement pack comprises a battery pack and a frame base; the bottom of the battery pack is provided with a locking mechanism; the frame base is provided with a middle connecting frame for fixing the battery pack; the long edge direction of the battery pack is taken as an X axis, and the advancing direction of the automobile is taken as a Y axis; a plurality of groups of Y-axis guide brackets are arranged on the side edge of the middle connecting frame, and Y-axis locking pin holes are formed in the Y-axis guide brackets;
the locking mechanism comprises a power mechanism, and the power mechanism is in transmission connection with at least one group of locking assemblies through an X-axis middle transmission shaft; the locking assembly comprises a quadrilateral connecting rod and a screw rod penetrating through the opposite vertex angle, and the screw rod and the middle transmission shaft are in coaxial transmission; the screw rod is matched with screw rod nuts arranged at a group of diagonal positions of the quadrilateral connecting rod and controls the distance between the diagonal positions; the other group of opposite angles of the quadrilateral connecting rod are provided with locking pins which stretch along the Y-axis direction;
the motor mechanism drives the screw rod to rotate forwards and backwards to drive the locking pin to be inserted into and withdrawn from the locking pin hole.
The power mechanism comprises a direct current motor electrically connected with the output terminal of the battery pack, a speed reducer in transmission connection with the output shaft of the direct current motor, and a control circuit.
The locking pin holes are provided with two groups; and the upper part of the inner side of the locking pin hole is provided with a locking wedge block, and the upper side of the locking pin is provided with a conical surface matched with the wedge block.
The middle connecting frame is provided with a plurality of groups of X-axis direction guide supports, and the top end of each group of X-axis direction guide supports is an inclined plane which inclines oppositely; the X-axis direction guide support is matched with a bottom beam in the Y-axis direction arranged at a position corresponding to the bottom of the battery pack, and limits and guides the battery pack in the X-axis direction; the end part of each group of Y-axis guide brackets is an inclined plane which inclines oppositely; the Y-axis direction guide support is matched with a bottom beam at the bottom of the battery pack in the X-axis direction, and the battery pack is limited and guided in the Y-axis direction. More preferably, the surface of the inclined plane is coated with a wear-resistant material.
The middle connecting frame is provided with a plurality of guide pins, and the guide pins are matched with guide holes arranged at the bottom of the battery pack and used for positioning or limiting the position between the battery pack and the middle connecting frame. The guide hole comprises at least one round guide hole and one groove-shaped guide hole. The radial sectional area of the circular guide hole is gradually reduced from outside to inside.
The middle connecting frame is fixed on the frame base through bolts; and a plurality of groups of shock pads are arranged between the middle connecting frame and the frame base. The purpose of the shock absorption is to isolate all relevant connection devices on the intermediate connection frame. The shock pad sets up between intermediate frame and frame chassis, and four groups altogether, every group is four.
The battery pack is provided with at least two layers, the battery pack is placed on the upper layer, and the locking mechanism is arranged on the lower layer; the battery pack is provided with a locking pin sleeve at a position corresponding to the locking pin, and the locking pin passes through the locking pin sleeve to enter and exit the battery pack to be connected with or separated from the locking pin hole. The emergency battery pack locking device further comprises an electromagnetic brake, wherein the electromagnetic brake can be manually released in an emergency state, and then the battery pack can be manually locked or released by a manual wrench.
The lead screw is a trapezoidal lead screw, and the lead screw has a self-locking function due to the lead screw lead angle of the trapezoidal lead screw. And two ends of the screw rod are matched with a bearing with a seat arranged on the inner wall of the battery pack and rotate around the shaft.
The speed reducer is of a multi-output-shaft structure, and the low-speed shaft transmits power to the trapezoidal lead screw through the universal coupling and the middle transmission shaft; the high-speed output shaft is connected with an electromagnetic brake through a universal coupling and an intermediate transmission shaft.
The middle connecting frame is provided with a plurality of electric connectors matched with the electric connection terminals extending out of the bottom of the battery pack and used for automobile power utilization.
The operation method of the fixing device for the battery pack replacement of the truck comprises the following steps:
(1) when the battery pack is transferred from the battery changing station to the truck, the battery pack enters a virtual plane where the middle connecting frame is located through the guiding mechanism on the middle connecting frame;
(2) the guide pin on the middle connecting frame is aligned with the guide hole at the bottom of the battery pack, so that accurate positioning is realized; the positioned locking pin is aligned with the locking pin hole;
(3) the direct current motor rotates positively to drive the speed reducer and the universal coupling to transmit torque to the trapezoidal lead screw, the trapezoidal lead screw rotates to drive the lead screw nut which rotates positively and negatively to move oppositely, the locking pin is pushed into the locking pin hole through force transmission of the connecting rod mechanism, and the wedge block is tightly pressed and firmly fixed;
(4) when a battery pack on a truck needs to be taken down and charged, the direct current motor reversely rotates to drive the speed reducer and the universal coupling to transmit torque to the trapezoidal lead screw, the trapezoidal lead screw rotates to drive the lead screw nut with the forward and reverse screws to move in the reverse direction, and the locking pin is pulled out of the locking pin hole through force transmission of the connecting rod mechanism.
The invention has the following beneficial effects:
(1) the lead screw is ensured to have a self-locking function by reasonably setting the thread lead angle of the trapezoidal lead screw, the power of a high-speed shaft of the speed reducer is led to the side surface of the battery pack through the intermediate shaft, and the electromagnetic brake is arranged, so that the battery frame is ensured to be firmly fixed with the connecting bracket of the truck all the time during power failure.
(2) When a fault occurs, the brake is manually moved through the handle, and the locking mechanism can be manually opened by reversely rotating the trapezoidal lead screw.
Drawings
FIG. 1 is a schematic view showing the overall structure of the present invention (the battery body is omitted in the drawing)
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
FIG. 4 is a schematic structural view of an intermediate link;
FIG. 5 is a schematic structural view of the intermediate link and the locking mechanism (locked state);
FIG. 6 is a schematic view of the structure of the intermediate link and the locking mechanism (open state);
FIG. 7 is a schematic cross-sectional view taken along the axial direction of the locking pin;
fig. 8 is a schematic structural view of a battery pack frame (the battery body is omitted in the drawing);
fig. 9 is a schematic top view of a battery pack chassis;
in the figure, 10, the frame base; 20. an intermediate connecting frame; 21. an X-axis guide support; 22. A Y-axis guide support; 23. locking pin holes; 24. a shock pad; 26. a guide pin; 27. an electrical connector; 28. a wedge block; 30. a locking mechanism; 31. a direct current motor; 32. a speed reducer; 33. An electromagnetic brake; 34. a universal coupling; 35. an intermediate transmission shaft; 36. a screw rod; 37. a feed screw nut; 38. a connecting rod; 39. a locking pin; 310. locking the pin bush; 311. a pedestal bearing; 40. A battery pack; 41. a guide hole; 42. a bottom beam.
Detailed Description
The technical solution of the present invention is further explained in detail with reference to the accompanying drawings and the specific embodiments.
As shown in fig. 1-9, the fixing device for a battery pack for truck battery replacement comprises a battery pack and a frame base; the bottom of the battery pack is provided with a locking mechanism 30; the frame base 10 is provided with a middle connecting frame 20 for fixing a battery pack; the long edge direction of the battery pack is taken as an X axis, and the advancing direction of the automobile is taken as a Y axis; a plurality of groups of Y-axis guide supports 22 are arranged on the side edge of the middle connecting frame 20, and the end part of each group of Y-axis guide supports 22 is an inclined plane which inclines oppositely; a Y-axis locking pin hole 23 is arranged on the Y-axis guide bracket 22;
the locking mechanism 30 comprises a power mechanism, and the power mechanism is in transmission connection with at least one group of locking components through an X-axis middle transmission shaft 35; the locking assembly comprises a quadrilateral connecting rod 38 and a screw rod 36 penetrating through an opposite vertex angle, and the screw rod 36 and the middle transmission shaft 35 are in coaxial transmission; the lead screw 36 is engaged with a lead screw nut 37 provided at a set of diagonal positions of the quadrangular linkage 38 and controls the distance between the diagonals; the other set of opposite corners of the quadrangular connecting rod 38 is provided with locking pins 39 which stretch along the Y-axis direction;
the motor mechanism drives the screw rod 36 to rotate positively and negatively to drive the locking pin 39 to be inserted into and withdrawn from the locking pin hole 23.
The power mechanism comprises a direct current motor 31 electrically connected with the output terminal of the battery pack, a speed reducer 32 in transmission connection with the output shaft of the direct current motor 31, and a control circuit.
As shown in fig. 7, the locking pin holes 23 have two sets; the upper part of the inner side of the locking pin hole 23 is provided with a locking wedge block, and the upper side of the locking pin 39 is provided with a conical surface matched with the wedge block 28. The wedge 28 compresses the locking pin 39 to prevent the battery pack 40 from moving.
As shown in fig. 4, a plurality of groups of X-axis direction guide brackets 21 are arranged on the intermediate connecting frame 20, and the top end of each group of X-axis direction guide brackets 21 is an inclined plane inclined in opposite directions; the X-axis direction guide support 21 is matched with a bottom beam in the Y-axis direction arranged at a position corresponding to the bottom of the battery pack 40, and limits and guides the battery pack 40 in the X-axis direction. The end of each set of Y-axis guide brackets 22 is an inclined plane which inclines oppositely; the Y-axis direction guide bracket 22 cooperates with the bottom beam in the X-axis direction at the bottom of the battery pack 40 to restrain and guide the battery pack 40 in the Y-axis direction. The X-axis direction guide bracket and the Y-axis guide bracket together guide the battery pack to the mounting position. More preferably, the surface of the inclined plane is coated with a wear-resistant material.
As shown in fig. 4 and 6, the intermediate connecting frame is provided with a plurality of guide pins 26, and the guide pins 26 are matched with guide holes 41 formed in the bottom of the battery pack and used for positioning or limiting the position between the battery pack and the intermediate connecting frame 20. The guide hole 41 includes at least one circular guide hole and one slotted guide hole. The radial sectional area of the circular guide hole is gradually reduced from outside to inside.
As shown in fig. 2, the intermediate connecting frame 20 is fixed to the frame base 10 by bolts; a plurality of groups of shock-absorbing pads 24 are arranged between the middle connecting frame 20 and the frame base 10. The purpose of the shock absorption is to isolate all relevant connection devices on the intermediate connection frame. The shock absorbing pads 24 are arranged between the intermediate frame and the underframe of the frame for a total of four groups, four in each group.
The battery pack is provided with at least two layers, the battery pack is placed on the upper layer, and the locking mechanism is arranged on the lower layer; the battery pack is provided with a locking pin sleeve 310 at a position corresponding to the locking pin 39, and the locking pin 39 passes through the locking pin sleeve 310 to enter and exit the battery pack to be connected with or separated from the locking pin hole 23. An electromagnetic brake 33 is also included which controls the extension of the wrench to the outside of the battery pack. The electromagnetic brake can be manually released in an emergency state, and then the battery pack can be manually locked or released by a manual wrench.
The screw rod 36 is a trapezoidal screw rod, and the lead angle of the trapezoidal screw rod ensures that the screw rod 36 has a self-locking function. And two ends of the screw rod 36 are matched with a bearing 311 with a seat arranged on the inner wall of the battery pack and rotate around the shaft.
The speed reducer 32 is of a multi-output-shaft structure, and a low-speed shaft transmits power to the trapezoidal lead screw through the universal coupling 34 and the intermediate transmission shaft 35; the high speed output shaft is connected with an electromagnetic brake through a universal joint 34 and an intermediate transmission shaft 35.
The middle connecting frame 20 is provided with a plurality of electric connectors 27 matched with electric connection terminals extending out of the bottom of the battery pack and used for automobile power utilization.
The operation method of the connecting and fixing device for the battery changing package of the truck comprises the following steps:
(1) when the battery pack is transferred from the battery changing station to the truck, the battery pack enters a virtual plane where the middle connecting frame is located through the guiding mechanism on the middle connecting frame;
(2) the guide pin on the middle connecting frame is aligned with the guide hole at the bottom of the battery pack, so that accurate positioning is realized; the positioned locking pin is aligned with the locking pin hole;
(3) the direct current motor rotates positively to drive the speed reducer and the universal coupling to transmit torque to the trapezoidal lead screw, the trapezoidal lead screw rotates to drive the lead screw nut which rotates positively and negatively to move oppositely, the locking pin is pushed into the locking pin hole through force transmission of the connecting rod mechanism, and the wedge block is tightly pressed and firmly fixed;
(4) when a battery pack on a truck needs to be taken down and charged, the direct current motor reversely rotates to drive the speed reducer and the universal coupling to transmit torque to the trapezoidal lead screw, the trapezoidal lead screw rotates to drive the lead screw nut with the forward and reverse screws to move in the reverse direction, and the locking pin is pulled out of the locking pin hole through force transmission of the connecting rod mechanism.
The transmission mechanism is arranged at the bottom of the battery box and specifically comprises a motor, a speed reducer, a universal coupling, an intermediate transmission shaft, an electromagnetic brake, a trapezoidal screw rod, a connecting rod, a locking pin and the like; the motor is a direct current servo motor without a brake, and the power source is a battery pack; the speed reducer is in a multi-output shaft form, a low-speed shaft transmits power to the trapezoidal lead screw through the universal coupling and the middle transmission shaft, and a high-speed output shaft is connected with the electromagnetic brake through the universal coupling and the middle shaft; the length of the middle transmission shaft is adjusted according to the arrangement distance of the lock pin holes; the locking pin hole is formed in the Y-direction guide bracket; the electromagnetic brake extends to the side face of the battery pack through the middle transmission shaft, so that the manual brake is convenient to release and maintain when a fault occurs; the trapezoidal screw rod has a self-locking function and provides guarantee for safe and reliable fixation of the battery pack; the locking pin is provided with a certain conical surface, the shape and the size of the locking pin are matched, and the wedge block is pressed and fixed. The locking pin is pushed and inserted into the locking pin hole under the driving of the motor, the speed reducer, the trapezoidal screw rod and the connecting rod. The whole transmission mechanism is compact in arrangement, occupies a height space of less than 20cm, achieves firm locking, is self-locking protected and is easy to maintain.
The shock pad is arranged in a layered mode, the middle connecting frame is arranged between the truck connecting support and the battery pack frame particularly, the middle connecting frame is connected with a frame base of a truck through the shock pad to achieve overall shock absorption, the locking pin holes are arranged in the middle connecting frame, and the requirement for coaxiality of the two pairs of locking pin holes is met in overall machining.
When the battery pack is transferred from the battery changing station to the truck lock for fastening, the battery pack enters the table top of the middle frame through the guide of the upper part of the locking main body, the direct current motor rotates positively to drive the speed reducer and the universal coupling to transmit torque to the trapezoidal lead screw, the trapezoidal lead screw rotates to drive the lead screw nut of the positive and negative screws to move oppositely, the locking pin is pushed into the locking pin hole through the transmission of the connecting rod mechanism, and the wedge block is tightly pressed and fixed.
When a battery pack on a truck needs to be taken down and charged, the direct current motor reversely rotates to drive the speed reducer and the universal coupling to transmit torque to the trapezoidal lead screw, the trapezoidal lead screw rotates to drive the lead screw nut with the forward and reverse screws to move in the reverse direction, and the locking pin is pulled out of the locking pin hole through force transmission of the connecting rod mechanism.
The lead screw is ensured to have a self-locking function by reasonably setting the thread lead angle of the trapezoidal lead screw, the power of a high-speed shaft of the speed reducer is led to the side surface of the battery pack through the intermediate shaft, and the electromagnetic brake is arranged, so that the battery frame is ensured to be firmly fixed with the connecting bracket of the truck all the time during power failure. When a fault occurs, the brake is manually moved through the handle, and the locking mechanism can be manually opened by reversely rotating the trapezoidal lead screw.
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and many modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the concept of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. The utility model provides a fixing device that battery package was traded to truck which characterized in that: comprises a battery pack and a frame base; the bottom of the battery pack is provided with a locking mechanism; the frame base is provided with a middle connecting frame for fixing the battery pack; a plurality of groups of Y-axis guide brackets are arranged on the side edge of the middle connecting frame; a Y-axial locking pin hole is formed in the Y-axial guide support;
the locking mechanism comprises a power mechanism, and the power mechanism is in transmission connection with at least one group of locking assemblies through an X-axis middle transmission shaft; the locking assembly comprises a quadrilateral connecting rod and a screw rod penetrating through the opposite vertex angle, and the screw rod and the middle transmission shaft are in coaxial transmission; the screw rod is matched with screw rod nuts arranged at a group of diagonal positions of the quadrilateral connecting rod and controls the distance between the diagonal positions; the other group of opposite angles of the quadrilateral connecting rod are provided with locking pins which stretch along the Y-axis direction;
the motor mechanism drives the screw rod to rotate forwards and backwards to drive the locking pin to be inserted into and withdrawn from the locking pin hole.
2. The fixing device for the truck battery replacement pack according to claim 1, wherein: the power mechanism comprises a direct current motor electrically connected with the output terminal of the battery pack, a speed reducer in transmission connection with the output shaft of the direct current motor, and a control circuit.
3. The fixing device for the truck battery replacement pack according to claim 1, wherein: the locking pin holes are provided with two groups; and the upper part of the inner side of the locking pin hole is provided with a locking wedge block, and the upper side of the locking pin is provided with a conical surface matched with the wedge block.
4. The fixing device for the truck battery replacement pack according to claim 1, wherein: the middle connecting frame is provided with a plurality of groups of X-axis direction guide supports, and the top end of each group of X-axis direction guide supports is an inclined plane which inclines oppositely; the X-axis direction guide support is matched with a bottom beam in the Y-axis direction arranged at a position corresponding to the bottom of the battery pack, and limits and guides the battery pack in the X-axis direction;
the end part of each group of Y-axis guide brackets is an inclined plane which inclines oppositely; the Y-axis direction guide support is matched with a bottom beam at the bottom of the battery pack in the X-axis direction, and the battery pack is limited and guided in the Y-axis direction.
5. The fixing device for the truck battery replacement pack as claimed in claim 4, wherein: the surface of the inclined plane is coated with wear-resistant materials.
6. The fixing device for the truck battery replacement pack according to claim 1, wherein: the middle connecting frame is fixed on the frame base through bolts; and a plurality of groups of shock pads are arranged between the middle connecting frame and the frame base.
7. The fixing device for the truck battery replacement pack according to claim 1, wherein: the battery pack is provided with at least two layers, the battery pack is placed on the upper layer, and the locking mechanism is arranged on the lower layer; the battery pack is provided with a locking pin sleeve at a position corresponding to the locking pin, and the locking pin passes through the locking pin sleeve to enter and exit the battery pack to be connected with or separated from the locking pin hole. The emergency battery pack locking device further comprises an electromagnetic brake, wherein the electromagnetic brake can be manually released in an emergency state, and then the battery pack can be manually locked or released by a manual wrench.
8. The fixing device for the truck battery replacement pack according to claim 1, wherein: the lead screw is a trapezoidal lead screw, and the lead screw has a self-locking function due to the lead screw lead angle of the trapezoidal lead screw; and two ends of the screw rod are matched with a bearing with a seat arranged on the inner wall of the battery pack and rotate around the shaft.
9. The fixing device for the truck battery replacement pack according to claim 1, wherein: the speed reducer is of a multi-output-shaft structure, and the low-speed shaft transmits power to the trapezoidal lead screw through the universal coupling and the middle transmission shaft; the high-speed output shaft is connected with an electromagnetic brake through a universal coupling and an intermediate transmission shaft.
10. The fixing device for the truck battery replacement pack according to claim 1, wherein: the middle connecting frame is provided with a plurality of guide pins, and the guide pins are matched with guide holes arranged at the bottom of the battery pack and used for positioning or limiting the position between the battery pack and the middle connecting frame.
11. The device for fixing a cart-replaceable battery pack according to claim 10, wherein: the guide hole comprises at least one round guide hole and one groove-shaped guide hole; the radial sectional area of the circular guide hole is gradually and continuously reduced from outside to inside.
12. The fixing device for the truck battery replacement pack according to claim 1, wherein: the middle connecting frame is provided with a plurality of electric connectors matched with the electric connection terminals extending out of the bottom of the battery pack and used for automobile power utilization.
13. The method of operating a truck battery pack securement device as recited in any of claims 1-12, comprising the steps of:
(1) when the battery pack is transferred from the battery changing station to the truck, the battery pack enters a virtual plane where the middle connecting frame is located through the guiding mechanism on the middle connecting frame;
(2) the guide pin on the middle connecting frame is aligned with the guide hole at the bottom of the battery pack, so that accurate positioning is realized; the positioned locking pin is aligned with the locking pin hole;
(3) the direct current motor rotates positively to drive the speed reducer and the universal coupling to transmit torque to the trapezoidal lead screw, the trapezoidal lead screw rotates to drive the lead screw nut which rotates positively and negatively to move oppositely, the locking pin is pushed into the locking pin hole through force transmission of the connecting rod mechanism, and the wedge block is tightly pressed and firmly fixed;
(4) when a battery pack on a truck needs to be taken down and charged, the direct current motor reversely rotates to drive the speed reducer and the universal coupling to transmit torque to the trapezoidal lead screw, the trapezoidal lead screw rotates to drive the lead screw nut with the forward and reverse screws to move in the reverse direction, and the locking pin is pulled out of the locking pin hole through force transmission of the connecting rod mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110538639.5A CN113335051A (en) | 2021-05-18 | 2021-05-18 | Fixing device for battery replacement pack of truck and operation method of fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110538639.5A CN113335051A (en) | 2021-05-18 | 2021-05-18 | Fixing device for battery replacement pack of truck and operation method of fixing device |
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| Publication Number | Publication Date |
|---|---|
| CN113335051A true CN113335051A (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110538639.5A Pending CN113335051A (en) | 2021-05-18 | 2021-05-18 | Fixing device for battery replacement pack of truck and operation method of fixing device |
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| Country | Link |
|---|---|
| CN (1) | CN113335051A (en) |
Cited By (3)
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| CN113752812A (en) * | 2021-09-14 | 2021-12-07 | 湖北雷迪特冷却系统股份有限公司 | Battery replacing device |
| CN113895300A (en) * | 2021-09-30 | 2022-01-07 | 钽铂科技(上海)有限公司 | Mobile type battery replacing device for truck |
| CN114890346A (en) * | 2022-04-29 | 2022-08-12 | 徐州徐工特种工程机械有限公司 | Locking mechanism and locking method for anti-falling limit of storage battery |
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| CN114890346A (en) * | 2022-04-29 | 2022-08-12 | 徐州徐工特种工程机械有限公司 | Locking mechanism and locking method for anti-falling limit of storage battery |
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