Single-bow-arm electrified highway pantograph

Abstract

The invention belongs to the technical field of road traffic, and provides a single-bow-arm electrified road pantograph which comprises a pantograph base, and a single-bow-arm lifting assembly is arranged at the top of the pantograph base. The pantograph head insulation connecting rod is horizontally arranged at the top of the single-pantograph-arm lifting assembly, the pantograph head insulation connecting rod is perpendicular to the advancing direction of the pantograph base, pantograph heads are arranged at the two ends of the pantograph head insulation connecting rod respectively, and the two pantograph heads are located above the pantograph head insulation connecting rod; angle limiting pieces are arranged between the two pantograph heads and the single-pantograph-arm lifting assembly and used for enabling the top faces of the pantograph heads to be parallel to the pantograph base all the time in the lifting process of the single-pantograph-arm lifting assembly. The complexity of the overall structure of the pantograph can be greatly reduced, the width and the overall weight of the pantograph base are effectively reduced, and meanwhile the influence of vehicle side sway on pantograph-catenary coupling dynamic response is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of road traffic, and in particular relates to a single-bow-arm electrified highway pantograph. Background Art

[0002] At present, the electrified highway system is developing rapidly. As the key subsystem of the system, the pantograph in the electrified highway pantograph-network system has a structure that directly determines the overall current receiving performance of the pantograph-network system. The existing electrified highway pantograph mainly uses a double-arm structure to support the parallel carbon slide plate for current receiving and return flow, which not only makes its structure relatively complex and has high manufacturing costs, but also significantly increases the width of the mounting seat. It is not only not suitable for installation on heavy-duty trucks with limited space, but also makes the pantograph significantly affected by the side swing movement of the truck, resulting in a significant difference in the contact force of the carbon slide plates on the left and right sides of the pantograph, reducing the current receiving performance of the system. Summary of the invention

[0003] The purpose of the present invention is to provide a single-arm electrified highway pantograph to solve the above-mentioned problems, thereby significantly reducing the complexity of the overall structure of the pantograph, effectively reducing the width and overall weight of the pantograph base, and at the same time reducing the influence of vehicle side swing on the pantograph-network coupling dynamic response.

[0004] To achieve the above object, the present invention provides the following solution: a single-arm electrified highway pantograph, comprising:

[0005] A pantograph base, wherein a single-bow arm lifting assembly is arranged on the top of the pantograph base;

[0006] A bow head insulating connecting rod, wherein the bow head insulating connecting rod is horizontally arranged on the top of the single bow arm lifting assembly, the bow head insulating connecting rod is perpendicular to the travel direction of the pantograph base, bow heads are respectively arranged at both ends of the bow head insulating connecting rod, two groups of the bow heads are located above the bow head insulating connecting rod, and an angle limiting member is arranged between the two groups of the bow heads and the single bow arm lifting assembly, and the angle limiting member is used to ensure that the top surface of the bow head is always in a state parallel to the pantograph base during the lifting process of the single bow arm lifting assembly.

[0007] Preferably, the single-bow-arm lifting assembly comprises a pantograph lower bow arm and a lower bow arm pull rod, one end of the pantograph lower bow arm is hinged to the top of the pantograph base, the other end of the pantograph lower bow arm is hinged to one end of the pantograph upper bow arm, the middle part of the bow head insulating connecting rod is fixedly connected to the other end of the pantograph upper bow arm, one end of the pantograph upper bow arm away from the bow head insulating connecting rod is fixedly connected to a swing rod, and two ends of the lower bow arm pull rod are respectively hinged to one end of the swing rod away from the pantograph upper bow arm and the top of the pantograph base;

[0008] The pantograph base is also provided with an electric drive component, which is transmission-connected to the lower pantograph arm and is used to drive the lower pantograph arm to rotate around a hinge axis with the pantograph base.

[0009] Preferably, the electric drive component includes a reduction motor fixedly connected to the top of the pantograph base, the output shaft of the reduction motor is transmission-connected to the lower bow arm of the pantograph, and the reduction motor is used to drive the lower bow arm of the pantograph to rotate around a hinge axis with the pantograph base.

[0010] Preferably, the angle limiting member includes a plurality of bow head positioning rods rotatably connected to the bow head insulating connecting rod, the plurality of bow head positioning rods are respectively located at both ends of the bow head insulating connecting rod, the bottoms of the two bow heads are respectively fixedly connected to the tops of the plurality of bow head positioning rods, and an adjustment drive member is arranged between the bottoms of the plurality of bow head positioning rods and the lower bow arm of the pantograph.

[0011] Preferably, the adjustment drive member includes a connecting rod and an upper bow arm pull rod, and one end of a plurality of the bow head positioning rods away from the bow head is fixedly connected to the connecting rod respectively, one end of the upper bow arm pull rod is rotatably mounted on the connecting rod, and the other end of the upper bow arm pull rod is hinged to the lower bow arm of the pantograph.

[0012] Preferably, the bow head insulating connecting rod and the connecting rod are both made of highly elastic material.

[0013] Preferably, an offline detection device is provided between the two bow heads, and the offline detection device is used to detect whether the contact network is out of contact with the bow head.

[0014] Preferably, one end of the bow head positioning rod away from the connecting rod is fixedly connected to a bow head buffer, and the bow head and the bow head positioning rod are fixedly connected via the bow head buffer.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects:

[0016] 1. The single-bow-arm electrified highway pantograph proposed in the present invention drives the double bow heads to contact the double-network parallel contact network to collect current through the single upper bow arm and the lower bow arm. Compared with the existing double-bow-arm electrified highway pantograph, the complexity of the pantograph structure is greatly reduced, and the width and overall weight of the pantograph are effectively reduced, and the demand for installation space is greatly reduced. It is more suitable for heavy-duty electrified highway trucks with limited space on the vehicle, and the influence of the vehicle's side swing on the pantograph is reduced.

[0017] 2. The single-arm electrified highway pantograph of the present invention drives the pantograph by a motor to achieve lifting and lowering operations, and no longer uses the traditional pneumatic drive method, thus reducing the demand for the pneumatic system and facilitating the active control of the pantograph. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a front view of the highway pantograph of the present invention;

[0020] Figure 2 It is a left side view of the highway pantograph of the present invention;

[0021] Among them, 1. pantograph base; 2. reduction motor; 3. pantograph lower bow arm; 4. bow head positioning rod; 5. bow head buffer; 6. bow head; 7. pantograph upper bow arm; 8. upper bow arm pull rod; 9. lower bow arm pull rod; 10. bow head insulating connecting rod; 11. offline detection device; 12. connecting rod; 13. swing arm. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figure 1-Figure 2 The present invention provides a single-arm electrified highway pantograph, comprising:

[0025] A pantograph base 1, a single pantograph arm lifting assembly is arranged on the top of the pantograph base 1;

[0026] The bow head insulating connecting rod 10 is horizontally arranged on the top of the single bow arm lifting assembly. The bow head insulating connecting rod 10 is perpendicular to the moving direction of the pantograph base 1. Bow heads 6 are respectively arranged at both ends of the bow head insulating connecting rod 10. Two groups of bow heads 6 are located above the bow head insulating connecting rod 10, and an angle limiting member is arranged between the two groups of bow heads 6 and the single bow arm lifting assembly. The angle limiting member is used to make the top surface of the bow head 6 always be in a state parallel to the pantograph base 1 during the lifting process of the single bow arm lifting assembly.

[0027] The main function of the pantograph base 1 is to connect with the road vehicle; the main function of the single-arm lifting assembly is to drive the insulated connecting rod 10 of the pantograph to adjust the height, so as to realize the raising and lowering of the two groups of pantographs 6; the main function of the angle limiting member is to realize the vertical lifting of the pantograph 6 when it is lifted, to ensure that the upper plane of the pantograph 6 is parallel to the pantograph base 1, and finally to ensure that the pantograph 6 is in good contact with the double-net parallel contact network of the electrified highway and receives the current. On the whole, the present invention greatly reduces the structural complexity of the pantograph compared with the existing double-arm electrified highway pantograph, and effectively reduces the width and overall weight of the pantograph, greatly reduces the demand for installation space, is more suitable for electrified highway heavy-duty trucks with limited space on the vehicle, and reduces the impact of the vehicle side swing on the pantograph. At the same time, the single-arm lifting assembly of the present invention is driven by the electric drive component to realize the pantograph lifting function, no longer using the traditional pneumatic drive method, reduces the demand for the pneumatic system, and is conducive to the active control of the pantograph.

[0028] Further optimized solution, the single bow arm lifting assembly includes a pantograph lower bow arm 3 and a lower bow arm pull rod 9, one end of the pantograph lower bow arm 3 is hinged to the top of the pantograph base 1, the other end of the pantograph lower bow arm 3 is hinged to one end of the pantograph upper bow arm 7, the middle part of the bow head insulating connecting rod 10 is fixedly connected to the other end of the pantograph upper bow arm 7, the end of the pantograph upper bow arm 7 away from the bow head insulating connecting rod 10 is fixedly connected to a swing rod 13, and the two ends of the lower bow arm pull rod 9 are respectively hinged to the end of the swing rod 13 away from the pantograph upper bow arm 7 and the top of the pantograph base 1;

[0029] The pantograph base 1 is also provided with an electric drive component, which is transmission-connected to the lower pantograph arm 3 , and is used to drive the lower pantograph arm 3 to rotate around a hinge axis with the pantograph base 1 .

[0030] like Figure 1 and Figure 2 As shown, the bottom end of the upper pantograph arm 7 is rotatably connected to the top of the lower pantograph arm 3 via an articulated shaft, and the top end of the swing arm 13 is fixedly connected to the articulated shaft of the upper pantograph arm 7, thereby realizing a fixed connection between the swing arm 13 and the upper pantograph arm 7, and a quadrilateral structure is formed between the upper pantograph arm 7 and the swing arm 13, the lower pantograph arm pull rod 9, the pantograph base 1 and the lower pantograph arm 3. When the electric drive component drives the articulated shaft fixedly connected to the bottom of the lower pantograph arm 3 and articulated with the pantograph base 1 to rotate, the lower pantograph arm 3 is lifted, and at the same time, the upper pantograph arm 7 is pulled by the lower pantograph arm pull rod 9, and its top drives the bow head 6 to be lifted to a sufficient height.

[0031] A further optimized solution is that the electric drive component includes a reduction motor 2 fixedly connected to the top of the pantograph base 1, and the output shaft of the reduction motor 2 is transmission-connected to the lower bow arm 3 of the pantograph. The reduction motor 2 is used to drive the lower bow arm 3 of the pantograph to rotate around the hinge axis with the pantograph base 1.

[0032] like Figure 1 and Figure 2 As shown, the reduction motor 2 includes a lifting motor and a transmission. When the lifting motor rotates, it drives the transmission to rotate, and the torque amplification function of the transmission drives the lower bow arm 3 of the pantograph to rotate around the hinge axis with the pantograph base 1, thereby realizing the lifting and lowering of the lower bow arm 3 of the pantograph, and then realizing the lifting and lowering control of the bow head 6.

[0033] A further optimized solution is that the angle limiting member includes a plurality of bow head positioning rods 4 rotatably connected to the bow head insulating connecting rod 10, the plurality of bow head positioning rods 4 are respectively located at both ends of the bow head insulating connecting rod 10, the bottoms of the two bow heads 6 are respectively fixedly connected to the tops of the plurality of bow head positioning rods 4, and an adjustment drive member is arranged between the bottoms of the plurality of bow head positioning rods 4 and the lower bow arm 3 of the pantograph.

[0034] A further optimized solution is provided, in which the adjustment driving member includes a connecting rod 12 and an upper bow arm pull rod 8, and one end of a plurality of bow head positioning rods 4 away from the bow head 6 is fixedly connected to the connecting rod 12, one end of the upper bow arm pull rod 8 is rotatably mounted on the connecting rod 12, and the other end of the upper bow arm pull rod 8 is hinged to the lower bow arm 3 of the pantograph.

[0035] like Figure 1 and Figure 2 As shown, a quadrilateral structure is formed between the bow head positioning rod 4, the upper pantograph arm 7, the lower pantograph arm 3 and the upper pantograph arm pull rod 8, and the length dimension is checked by design. When the lower pantograph arm 3 is lifted to drive the upper pantograph arm 7 to be lifted synchronously, the upper pantograph arm pull rod 8 pulls the bow head positioning rod 4 to ensure that the bow head positioning rod 4 is always kept vertical to the pantograph base 1, thereby ensuring that the top of the bow head 6 is in a state parallel to the pantograph base 1.

[0036] To further optimize the solution, the bow head insulating connecting rod 10 and the connecting rod 12 are both made of highly elastic materials.

[0037] The bow head insulating connecting rod 10 and the connecting rod 12 are made of highly elastic materials, and their elasticity can be used to ensure that the bow head 6 always has good contact with the parallel contact network of the electrified highway double network during use.

[0038] According to a further optimized solution, an offline detection device 11 is provided between the two bow heads 6, and the offline detection device 11 is used to detect whether the contact network is out of contact with the bow head.

[0039] like Figure 1As shown, when the parallel contact network of the double-network electrified highway loses contact with the bow head 6 of the pantograph of the present invention and hits the offline detection device 11, the reduction motor 2 rotates in the opposite direction, driving the lower bow arm 3 of the pantograph to descend rapidly, and causing the two groups of bow heads 6 to descend rapidly and disengage from the contact network, thereby realizing rapid lowering of the pantograph and avoiding arcing.

[0040] The off-line detection device 11 is a conventional device in the field, and its working principle and working process are not described in detail.

[0041] According to a further optimized solution, one end of the bow head positioning rod 4 away from the connecting rod 12 is fixedly connected to the bow head buffer 5 , and the bow head 6 is fixedly connected to the bow head positioning rod 4 via the bow head buffer 5 .

[0042] According to a further optimization scheme, the reduction motor 2 is electrically connected to the vehicle's internal control system, and the vehicle driver can control the forward and reverse rotation of the reduction motor 2 by operating the control system in the vehicle.

[0043] The working process of this embodiment is as follows: when the pantograph 6 needs to contact the parallel contact network of the electrified highway double network to draw power, the vehicle driver can operate the reduction motor 2 through the control system in the vehicle to rotate, drive the lower pantograph arm 3 to rise, and at the same time, the upper pantograph arm 7 to rise synchronously, so that the two sets of pantographs 6 can contact the contact network and draw power. Similarly, the vehicle driver can control the reduction motor 2 to reverse through the control system to reduce the height of the pantograph 6 and achieve the retraction of the pantograph.

[0044] During driving, when the bow head 6 loses contact with the contact network and hits the offline detection device 11, the reduction motor 2 immediately rotates in the opposite direction, driving the lower bow arm 3 of the pantograph to descend rapidly, and causing the two groups of bow heads 6 to descend rapidly and disengage from the contact network, thereby realizing rapid lowering of the pantograph and avoiding arcing.

[0045] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A single-arm electrified highway pantograph, characterized in that ,include: A pantograph base (1), wherein a single-bow arm lifting assembly is arranged on the top of the pantograph base (1); A bow head insulating connecting rod (10), wherein the bow head insulating connecting rod (10) is horizontally arranged on the top of the single bow arm lifting assembly, and the bow head insulating connecting rod (10) is perpendicular to the travel direction of the pantograph base (1). Bow heads (6) are respectively arranged at both ends of the bow head insulating connecting rod (10), and two groups of the bow heads (6) are located above the bow head insulating connecting rod (10), and an angle limiting member is arranged between the two groups of the bow heads (6) and the single bow arm lifting assembly, and the angle limiting member is used to ensure that the top surface of the bow head (6) is always in a state parallel to the pantograph base (1) during the lifting process of the single bow arm lifting assembly.

2. The single-arm electrified highway pantograph according to claim 1, characterized in that: The single-bow-arm lifting assembly comprises a pantograph lower arm (3) and a lower-bow-arm pull rod (9); one end of the pantograph lower arm (3) is hinged to the top of the pantograph base (1); the other end of the pantograph lower arm (3) is hinged to one end of the pantograph upper arm (7); the middle part of the pantograph insulating connecting rod (10) is fixedly connected to the other end of the pantograph upper arm (7); one end of the pantograph upper arm (7) away from the pantograph insulating connecting rod (10) is fixedly connected to a swing rod (13); and two ends of the lower-bow-arm pull rod (9) are respectively hinged to one end of the swing rod (13) away from the pantograph upper arm (7) and the top of the pantograph base (1); The pantograph base (1) is also provided with an electric drive component, which is in transmission connection with the pantograph lower arm (3), and is used to drive the pantograph lower arm (3) to rotate around a hinge axis with the pantograph base (1).

3. The single-arm electrified highway pantograph according to claim 2, characterized in that: The electric drive unit comprises a reduction motor (2) fixedly connected to the top of the pantograph base (1); the output shaft of the reduction motor (2) is transmission-connected to the lower pantograph arm (3); the reduction motor (2) is used to drive the lower pantograph arm (3) to rotate around a hinge axis with the pantograph base (1).

4. The single-arm electrified highway pantograph according to claim 2, characterized in that: The angle limiting member comprises a plurality of bow head positioning rods (4) rotatably connected to the bow head insulating connecting rod (10), the plurality of bow head positioning rods (4) are respectively located at two ends of the bow head insulating connecting rod (10), the bottoms of the two bow heads (6) are respectively fixedly connected to the tops of the plurality of bow head positioning rods (4), and an adjustment drive member is provided between the bottoms of the plurality of bow head positioning rods (4) and the lower bow arm (3) of the pantograph.

5. The single-arm electrified highway pantograph according to claim 4, characterized in that: The adjustment drive member comprises a connecting rod (12) and an upper bow arm pull rod (8); one end of a plurality of bow head positioning rods (4) away from the bow head (6) is fixedly connected to the connecting rod (12), one end of the upper bow arm pull rod (8) is rotatably mounted on the connecting rod (12), and the other end of the upper bow arm pull rod (8) is hinged to the lower bow arm (3) of the pantograph.

6. The single-arm electrified highway pantograph according to claim 5, characterized in that: The bow head insulating connecting rod (10) and the connecting rod (12) are both made of highly elastic material.

7. The single-arm electrified highway pantograph according to claim 1, characterized in that: An off-line detection device (11) is arranged between the two bow heads (6), and the off-line detection device (11) is used to detect whether the contact network is out of contact with the bow head.

8. The single-arm electrified highway pantograph according to claim 5, characterized in that: One end of the bow head positioning rod (4) away from the connecting rod (12) is fixedly connected to a bow head buffer (5), and the bow head (6) and the bow head positioning rod (4) are fixedly connected via the bow head buffer (5).

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