A double-head pantograph configuration for new energy heavy trucks

Abstract

The present invention relates to a double-headed pantograph configuration for a new energy heavy-duty truck, which belongs to the technical field of charging new energy heavy-duty trucks, and includes: a frame, two lifting mechanisms and two pantograph heads, wherein the bottom ends of the two lifting mechanisms are adjacently fixed on the frame; and the two pantograph heads are respectively fixed on the top ends of the two lifting mechanisms. The present invention drives the two pantograph heads to rise and fall respectively by designing two lifting mechanisms. Since the two pantograph heads are respectively electrically connected to the positive and negative poles of the charging power line of the power grid and the positive and negative poles of the power supply device of the new energy heavy-duty truck, a complete power-on circuit is formed, which can avoid the need for additional components of the new energy heavy-duty truck to be connected to the ground, thereby improving the driving safety of the new energy heavy-duty truck; at the same time, the two pantograph heads are independently raised and lowered, which can adapt to the situation where the upper and lower spacing between the positive and negative poles in the contact network is large, thereby improving the adaptability of the double-headed pantograph configuration.

Description

Technical Field

[0001] The present invention relates to the technical field of charging new energy heavy-duty trucks, and in particular to a double-head pantograph configuration for new energy heavy-duty trucks. Background Art

[0002] At present, the cruising range of new energy vehicles (especially electric trucks) is the biggest challenge to their promotion and application. If you want to increase the cruising range of pure electric trucks, you need to continuously increase the number of batteries. However, the increase in the number of batteries not only increases the cost sharply, but also greatly increases the weight of the batteries. Although various vehicle manufacturers have begun to develop hydrogen fuel cells and demonstrate their applications, the technology is still in its infancy and it will take a long time before it can be commercialized.

[0003] In order to improve the mileage of new energy heavy trucks, a variety of online charging pantograph structures have been launched on the market. For example, the patent number is: CN214929020U, and the name is an invention patent for a pantograph structure suitable for new energy trucks. In this patent, the pantograph is fixed on the new energy truck and can provide online charging services while the truck is driving, thereby overcoming the disadvantage that traditional new energy vehicles must stop and charge when they are out of power, and facilitating the better promotion and development of new energy vehicles. However, the above pantograph structure usually adopts a single slide plate structure, which requires the new energy truck to add additional components to connect to the ground to form a power circuit, which will correspondingly reduce the driving speed and driving safety of the new energy truck; at the same time, the pantograph is a fully charged structure, which is easy to cause safety accidents.

[0004] Therefore, how to design a pantograph structure for online charging of new energy heavy trucks that is simple in structure, does not affect the driving speed and is safe to use is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The present invention provides a double-head pantograph configuration for a new energy heavy truck, which solves the technical problem that the existing charging pantograph affects the driving safety of the heavy truck.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: a double-head pantograph configuration for a new energy heavy truck, comprising:

[0007] frame,

[0008] A lifting mechanism, wherein the lifting mechanisms are two and the bottom ends of the lifting mechanisms are adjacently fixed on the frame;

[0009] There are two pantograph heads, which are respectively fixed on the top ends of the two lifting mechanisms.

[0010] The beneficial effects of the present invention are as follows: by designing two lifting mechanisms to respectively drive the two electric pantograph heads to rise and fall, since the two electric pantograph heads are respectively electrically connected to the positive line and negative line of the power grid charging power line and the positive charging line and negative charging line of the new energy heavy-duty truck power supply device, a complete power-on circuit is formed, which can avoid the need for additional components of the new energy heavy-duty truck to be connected to the ground, thereby improving the driving speed and driving safety of the new energy heavy-duty truck; at the same time, the two electric pantograph heads are independently raised and lowered, which can adapt to the situation where the upper and lower spacing between the positive line and the negative line in the contact network is large, thereby improving the adaptability of the double-headed pantograph configuration.

[0011] Based on the above technical solution, the present invention can also be improved as follows.

[0012] Further, the lifting mechanism comprises:

[0013] A telescopic airbag, the telescopic airbag is fixed to an inner arm of the frame and its telescopic end reciprocates and telescopes in a horizontal direction;

[0014] A driving shaft, the driving shaft is rotatably connected to two opposite inner arms of the frame in a direction perpendicular to the telescopic direction of the telescopic airbag; the telescopic end of the telescopic airbag is fixed to the side wall of the driving shaft and drives the driving shaft to rotate;

[0015] A lower arm, the bottom end of which is vertically fixed on the driving shaft;

[0016] An upper arm, the bottom end of which is hinged to the top end of the lower arm;

[0017] A cross bar, wherein the cross bar is vertically fixed to the top of the upper arm bar; the electric shock bow head is fixed on the cross bar;

[0018] A pull rod, the bottom end of which is hinged to the outer side wall of the frame and the top end of which is hinged to the bottom end of the upper arm rod.

[0019] A further beneficial effect of the above-mentioned application is that the telescopic airbag is used to extend and retract to drive the rotating shaft to rotate. Since the bottom end of the pull rod is hinged on the outer wall of the frame and the top end is hinged on the bottom end of the upper arm rod, the upper arm rod can be driven to swing up and down, thereby achieving the up and down lifting of the electric shock bow head.

[0020] Furthermore, the lifting mechanism further comprises a balancing rod, the bottom end of which is hinged to the top end of the lower arm rod and the top end of which is hinged to the top end of the upper arm rod.

[0021] A further beneficial effect of the above arrangement is that the stability of the movement of the upper arm can be improved by hingedly connecting the bottom end of the balance bar to the top end of the lower arm and hingedly connecting the top end to the top end of the upper arm.

[0022] Furthermore, a linkage mechanism is included, and the linkage mechanism includes:

[0023] Two linkage arms, the two linkage arms are arranged adjacent to each other and are respectively fixed on the driving shafts of the two lifting mechanisms, one linkage arm is provided with a fixing hole, and the other linkage arm is provided with a long hole along its moving direction;

[0024] A linkage pin, one end of which is fixed in the fixing hole and the other end of which is adapted to be slidably connected in the long hole along the moving direction of the linkage arm.

[0025] A further beneficial effect of the above-mentioned method is: two linkage arms are respectively fixed on two driving shafts. Since one end of the linkage pin is fixed in a fixing hole of a linkage arm, and the other end is slidably connected in the long hole along the moving direction of the linkage arm, after one electric shock bow head rises to a certain height, the other electric shock bow head can be driven to rise, thereby realizing the linkage of the two electric shock bow heads and avoiding a large height difference between the two electric shock bow heads.

[0026] Furthermore, a damping mechanism is included, and the damping mechanism includes two dampers, and the damping ends of the two dampers are respectively fixed on the two linkage arms and the other ends thereof are both fixed on the inner side wall of the frame.

[0027] A further beneficial effect of the above-mentioned application is that by hingedly connecting one end of the damper to the frame and hingedly connecting the other end to the linkage arm, when the telescopic airbag loses driving power at the moment of deflation, the damper can slow down the counterclockwise rotation speed of the linkage arm, thereby preventing the electric bow head from descending too quickly.

[0028] Further, the electric shock bow head includes:

[0029] A carbon slide plate, wherein the carbon slide plate is fixed on the cross bar;

[0030] Anti-slip plates, the anti-slip plates are two and fixed at both ends of the carbon slide plate, and the anti-slip plates are bent downward in sequence in a direction away from each other.

[0031] A further beneficial effect of adopting the above method is that by fixing two anti-slip plates at both ends of the carbon slide board, the contact network can be prevented from detaching from the carbon slide board, thereby improving the continuity and stability of the electric shock of the carbon slide board.

[0032] Furthermore, the two anti-slip plates on one carbon slide plate are arranged away from the cross bar, and the two anti-slip plates on another carbon slide plate are arranged close to the cross bar, and the length of the two anti-slip plates on the two carbon slide plates extending out of the carbon slide plate is greater than the distance between the two carbon slide plates.

[0033] The further beneficial effect of adopting the above method is: by utilizing the length of the anti-detachment plate being greater than the distance between the carbon slide plates, the contact network can be prevented from detaching from the carbon slide plates, thereby improving the continuity and stability of the electric shock of the carbon slide plates.

[0034] Further, the bottom of an adjacent anti-slip plate is lower than the lowest point of another adjacent anti-slip plate, and the highest point of an adjacent anti-slip plate is between the highest point and the lowest point of another adjacent anti-slip plate.

[0035] A further beneficial effect of adopting the above method is that since the lowest point of an adjacent anti-slip plate is lower than the lowest point of another adjacent anti-slip plate, and the highest point of an adjacent anti-slip plate is located between the highest point and the lowest point of another adjacent anti-slip plate, it can effectively prevent the two wires on the contact network from detaching from the carbon slide board during contact, thereby improving the continuity and stability of the electric shock of the carbon slide board. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a side view structural schematic diagram of a double-head pantograph configuration for a new energy heavy truck of the present invention;

[0037] Figure 2 This is a schematic diagram of the front view of a double-head pantograph configuration for a new energy heavy truck of the present invention;

[0038] Figure 3 It is a partial structural schematic diagram of a telescopic airbag, a driving shaft, a linkage arm, a linkage pin and a damper in a double-head pantograph configuration for a new energy heavy truck of the present invention.

[0039] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0040] 1. Framework,

[0041] 2. Lifting mechanism, 21. Telescopic airbag, 22. Driving shaft, 23. Lower arm, 24. Upper arm, 25. Pull rod, 26. Balance rod,

[0042] 3. Electric shock bow head, 31. Carbon slide plate, 32. Anti-slip plate,

[0043] 4. linkage mechanism, 41. linkage arm, 42. linkage pin, 43. long hole,

[0044] 5. Damping mechanism, 51. Damper. DETAILED DESCRIPTION

[0045] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0046] like Figure 1 or Figure 2As shown, a double-head pantograph configuration for a new energy heavy truck includes:

[0047] Frame 1,

[0048] Lifting mechanism 2, there are two lifting mechanisms 2 and their bottom ends are fixed adjacently on the frame 1;

[0049] There are two pantograph heads 3 , which are fixed on the top ends of the two lifting mechanisms 2 respectively.

[0050] like Figure 1 or Figure 2 As shown, in some specific embodiments, the lifting mechanism 2 includes:

[0051] A telescopic airbag 21, the telescopic airbag 21 is fixed to an inner arm of the frame 1 and its telescopic end reciprocates and telescopes in a horizontal direction;

[0052] A driving shaft 22, which is rotatably connected to two opposite inner arms of the frame 1 in a direction perpendicular to the telescopic direction of the telescopic airbag 21; the telescopic end of the telescopic airbag 21 is fixed to the side wall of the driving shaft 22 and drives the driving shaft 22 to rotate;

[0053] A lower arm 23, the bottom end of which is vertically fixed on the driving shaft 22;

[0054] An upper arm 24, the bottom end of which is hinged to the top end of the lower arm 23;

[0055] A crossbar, which is vertically fixed to the top of the upper arm 24; the pantograph head 3 is fixed to the crossbar;

[0056] The pull rod 25 has its bottom end hinged to the outer side wall of the frame 1 and its top end hinged to the bottom end of the upper arm 24 .

[0057] In some specific embodiments, the lifting mechanism 2 may further include a balancing rod 26 , the bottom end of the balancing rod 26 is hinged to the top end of the lower arm 23 and the top end of the balancing rod 26 is hinged to the top end of the upper arm 24 .

[0058] like Figure 3 As shown, in some specific embodiments, a linkage mechanism 4 may also be included, and the linkage mechanism 4 includes:

[0059] Two linkage arms 41, which are arranged adjacent to each other and fixed on the driving shafts 22 of the two lifting mechanisms 2, respectively. One linkage arm 41 is provided with a fixing hole, and the other linkage arm 41 is provided with a long hole 43 along its moving direction;

[0060] The linkage pin 42 has one end fixed in the fixing hole and the other end adapted to be slidably connected in the long hole 43 along the moving direction of the linkage arm 41 .

[0061] In some specific embodiments, a damping mechanism 5 may be further included. The damping mechanism 5 includes two dampers 51 . The damping ends of the two dampers 51 are respectively fixed on the two linkage arms 41 and the other ends thereof are both fixed on the inner side wall of the frame 1 .

[0062] In some specific embodiments, the pantograph head 3 may include:

[0063] A carbon slide plate 31, wherein the carbon slide plate 31 is fixed on the cross bar;

[0064] The anti-slip plates 32 are two and fixed at both ends of the carbon slide plate 31 . The anti-slip plates 32 are bent downward in sequence in a direction away from each other.

[0065] Specifically, the two anti-slip plates 32 on one carbon slide plate 31 are arranged away from the cross bar, the two anti-slip plates 32 on the other carbon slide plate 31 are arranged close to the cross bar, and the length of two adjacent anti-slip plates 32 extending out of the carbon slide plate 31 is greater than the distance between the two carbon slide plates 31.

[0066] Specifically, the bottom of an adjacent anti-slip plate 32 may be lower than the lowest point of another adjacent anti-slip plate 32 , and the highest point of an adjacent anti-slip plate 32 is between the highest point and the lowest point of another adjacent anti-slip plate 32 .

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-head pantograph configuration for new energy heavy trucks, characterized in that: include: Framework (1), A lifting mechanism (2), wherein the lifting mechanism (2) is two and the bottom ends of the lifting mechanisms (2) are adjacently fixed on the frame (1); A pantograph head (3), wherein the pantograph heads (3) are two and are respectively fixed on the top ends of the two lifting mechanisms (2); The lifting mechanism (2) comprises: A telescopic airbag (21), wherein the telescopic airbag (21) is fixed to an inner arm of the frame (1) and the telescopic end thereof reciprocates and telescopes in a horizontal direction; A driving shaft (22), the driving shaft (22) being rotatably connected to two opposite inner arms of the frame (1) in a direction perpendicular to the telescopic direction of the telescopic airbag (21); the telescopic end of the telescopic airbag (21) is fixed to the side wall of the driving shaft (22) and drives the driving shaft (22) to rotate; A lower arm (23), the bottom end of which is vertically fixed on the driving shaft (22); An upper arm (24), the bottom end of the upper arm (24) being hinged to the top end of the lower arm (23); A crossbar, the crossbar being vertically fixed to the top end of the upper arm (24); the electric shock bow head (3) being fixed to the crossbar; A pull rod (25), the bottom end of the pull rod (25) being hinged to the outer side wall of the frame (1) and the top end of the pull rod (25) being hinged to the bottom end of the upper arm rod (24); It also includes a linkage mechanism (4), wherein the linkage mechanism (4) includes: Two linkage arms (41), the two linkage arms (41) are arranged adjacent to each other and are respectively fixed on the driving shafts (22) of the two lifting mechanisms (2), one linkage arm (41) is provided with a fixing hole, and the other linkage arm (41) is provided with a long hole (43) along its moving direction; A linkage pin (42), one end of which is fixed in the fixing hole and the other end of which is adapted to be slidably connected in the long hole (43) along the moving direction of the linkage arm (41); The pantograph head (3) comprises: A carbon slide plate (31), wherein the carbon slide plate (31) is fixed on the cross bar; Anti-slip plates (32), the anti-slip plates (32) being two and fixed at both ends of the carbon slide plate (31), the anti-slip plates (32) being bent downward in sequence in a direction away from each other; The two anti-slip plates (32) on one carbon slide plate (31) are arranged away from the cross bar, and the two anti-slip plates (32) on another carbon slide plate (31) are arranged close to the cross bar, and the length of two adjacent anti-slip plates (32) extending out of the carbon slide plate (31) is greater than the distance between the two carbon slide plates (31); The bottom of one adjacent anti-slip plate (32) is lower than the lowest point of another adjacent anti-slip plate (32), and the highest point of one adjacent anti-slip plate (32) is between the highest point and the lowest point of another adjacent anti-slip plate (32).

2. The double-head pantograph configuration for new energy heavy trucks according to claim 1 is characterized in that: The lifting mechanism (2) further comprises a balancing rod (26), the bottom end of which is hinged to the top end of the lower arm (23) and the top end of which is hinged to the top end of the upper arm (24).

3. The double-head pantograph configuration for a new energy heavy truck according to claim 1 is characterized in that: It also comprises a damping mechanism (5), the damping mechanism (5) comprising two dampers (51), the damping ends of the two dampers (51) being respectively fixed on the two linkage arms (41) and the other ends thereof being fixed on the inner side wall of the frame (1).

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