CN112918264B

CN112918264B - Current collector

Info

Publication number: CN112918264B
Application number: CN202110137401.1A
Authority: CN
Inventors: 陈革
Original assignee: Hunan Xingguang Shuliu Technology Co ltd
Current assignee: Hunan Xingguang Shuliu Technology Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2022-09-27
Anticipated expiration: 2041-02-01
Also published as: CN112918264A

Abstract

The invention discloses a current collector, comprising: the boot head component comprises a boot head mechanism and a transmission mechanism, the head end of the boot head mechanism is provided with a current-receiving sliding boot, the tail end of the boot head mechanism is hinged to the head end of the transmission mechanism, and the boot head mechanism has a stroke of swinging back and forth on the transmission mechanism; the swinging assembly comprises a switching mechanism, a swinging mechanism and a bracket, the transmission mechanism is rotatably connected to the switching mechanism, the switching mechanism is hinged at the head end of the swinging mechanism, and the switching mechanism has a left-right swinging stroke on the swinging mechanism; the tail end of the swing mechanism is hinged on the bracket, and the swing mechanism has a stroke of swinging left and right on the bracket; the bracket is rotatably connected to the bottom frame assembly. The influence caused by the pose and displacement change of the vehicle bogie is compensated through a series of transmission structures on the current collector, namely the dynamic envelope range of the current-collecting sliding shoes on the power supply rail is reduced, so that the narrow opening is only left on the additional insulating protective cover of the power supply rail, and the electric shock risk is greatly reduced.

Description

Current collector

Technical Field

The invention relates to the technical field of mobile power supply of rigid contact rails of rail transit, in particular to a current collector.

Background

In the field of mobile power supply of rigid contact rails of urban rail transit, no matter the upper current receiving type (adopted by most Beijing subway lines), the lower current receiving type (adopted by subway lines such as Wuhan and the like) or the side current receiving type (adopted by Changsha magnetic levitation express lines and the like), the power-supplying boot heads on the vehicle-mounted current collector are changed along with the position movement of a vehicle bogie, when the current receiving assembly fluctuates up and down, moves left and right and rolls transversely along with the vehicle bogie, the dynamic envelope range of a rod piece of the current collector connected with the current receiving sliding shoes is large, in order to ensure that the current collector does not interfere with the components of the current collector, the power supply rail protective cover needs to be arranged into a structure with a larger opening, when the rail transit with the ground rigid contact rail mobile power supply is built in an urban area or a mountain area, the electrified contact rail with the large open insulation protection brings an electric shock risk when a subway vehicle runs on the ground unless a closed line is adopted.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the current collector, so that the current collecting skid shoe has a stroke with multiple degrees of freedom swinging on the vehicle bogie, the influence caused by the position and the displacement change of the vehicle bogie is effectively compensated, the reserved opening of the power supply rail protective cover is reduced, and the electrical safety of a rail is improved.

To achieve the above object, the present invention provides a current collector, comprising:

the boot head assembly comprises a boot head mechanism and a transmission mechanism, the head end of the boot head mechanism is provided with a current-receiving sliding boot, the tail end of the boot head mechanism is hinged to the head end of the transmission mechanism, and the boot head mechanism has a stroke of swinging back and forth on the transmission mechanism;

the swinging assembly comprises a switching mechanism, a swinging mechanism and a bracket, the transmission mechanism is rotatably connected to the switching mechanism, the switching mechanism is hinged to the head end of the swinging mechanism, and the switching mechanism has a stroke of swinging left and right on the swinging mechanism; the tail end of the swing mechanism is hinged to the support, and the swing mechanism has a stroke of swinging left and right on the support;

the bracket is rotatably connected to the underframe assembly;

and the swing assembly is provided with a driving mechanism for providing a driving moment swinging to the power supply rail for the head end of the swing mechanism.

In one embodiment, a base frame is arranged on the bottom plate, the support is rotatably connected to the base frame through a first pin shaft, and a limiting structure capable of limiting the rotation amplitude of the support is arranged on the base frame.

In one embodiment, the swing mechanism comprises a first swing rod and a second swing rod, the head end of the first swing rod and the head end of the second swing rod are hinged to the switching mechanism through a second pin shaft and a third pin shaft, and the tail end of the first swing rod and the tail end of the second swing rod are hinged to the bracket through a fourth pin shaft and a fifth pin shaft;

and the axes of the second pin shaft, the third pin shaft, the fourth pin shaft and the fifth pin shaft enclose a quadrilateral structure.

In one embodiment, the driving mechanism is a spring, one end of the spring is connected with the bracket, and the other end of the spring is connected to the first swing rod or the second swing rod.

In one embodiment, at least two of the transmission mechanism, the switching mechanism, the first swing link, the second swing link, the bracket and the bottom plate have electrical insulation performance.

In one embodiment, a limit bolt is arranged on the first swing rod or the second swing rod, and the bracket is located on a swing path of the limit bolt to limit the swing amplitude of the swing mechanism.

In one embodiment, the transmission mechanism is rotatably connected to the adapter mechanism through a sixth pin, and the axis of the sixth pin is parallel to the axis of the first pin.

In one embodiment, the head end of the transmission mechanism is provided with a mounting groove, and the tail end of the toe mechanism is embedded in the mounting groove and hinged with the transmission mechanism through a seventh pin shaft.

In one embodiment, the collector shoe is a V-shaped structure composed of two shoes.

In one embodiment, the collector shoe is a single-shoe direct-connection type structure.

In one embodiment, the base frame assembly comprises a bottom plate and a wire holder, the bracket is rotatably connected to the bottom plate, and the wire holder is fixedly arranged on the bottom plate and electrically connected with the shoe head mechanism.

According to the current collector provided by the invention, through a series of transmission structures, the current-collecting sliding shoes have the strokes of swinging back and forth, up and down, left and right and rotating on the bottom plate, the structure optimization is carried out through the current-collecting sliding shoes, the moving range of the current-collecting sliding shoes is limited by the power supply rail structure, the influence caused by the position and the displacement change of a vehicle bogie is compensated through the series of transmission structures on the current collector, namely, the dynamic envelope range of the current-collecting sliding shoes on the power supply rail is reduced, and an external insulating protective cover of the power supply rail only leaves a narrow opening, so that the electric shock risk is greatly reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an isometric view of a current collector in an embodiment of the invention;

fig. 2 is a bottom view of a current collector in an embodiment of the invention;

fig. 3 is a top view of a current collector in an embodiment of the invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 3 in accordance with an embodiment of the present invention;

fig. 5 is a side view of a current collector in an embodiment of the invention;

fig. 6 is a front view of a current collector in an embodiment of the invention;

FIG. 7 is a sectional view taken along line B-B of FIG. 6 in accordance with an embodiment of the present invention;

fig. 8 is a rear view of a current collector in an embodiment of the invention;

FIG. 9 is a schematic view of a first embodiment of a collector shoe according to an embodiment of the present invention;

FIG. 10 is a schematic view of a second embodiment of a collector shoe according to an embodiment of the present invention;

FIG. 11 is a schematic diagram illustrating a positional relationship between a shoe mechanism and an insulating shield according to an embodiment of the present invention.

Reference numerals: the device comprises a shoe head mechanism 101, a transmission mechanism 102, a current-receiving sliding shoe 103, a seventh pin shaft 104, a switching mechanism 201, a support 202, a sixth pin shaft 203, a first swing rod 204, a second swing rod 205, a second pin shaft 206, a third pin shaft 207, a fourth pin shaft 208, a fifth pin shaft 209, a driving mechanism 2010, a limiting bolt 2011, a bottom plate 301, a wire holder 302, a limiting block 303, a first pin shaft 304, a cable 305, a power supply rail 401 and an insulating protective cover 402.

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

In this embodiment, the forward and backward swing refers to swing around the Z axis in the XOY plane, the leftward and rightward swing refers to swing around the X axis in the YOZ plane, and the upward and downward swing refers to swing around the Y axis in the XOZ plane.

Fig. 1 to 8 show a current collector disclosed in this embodiment, which mainly comprises three parts, namely a toe assembly, a swinging assembly and an underframe assembly.

The boot head assembly comprises a boot head mechanism 101 and a transmission mechanism 102, a current receiving sliding shoe 103 is arranged at the head end of the boot head mechanism 101, and the tail end of the boot head mechanism 101 is hinged to the head end of the transmission mechanism 102, so that the boot head mechanism 101 has a stroke of swinging back and forth on the transmission mechanism 102, and further the current receiving sliding shoe 103 at the head end of the boot head mechanism 101 is driven to have a stroke of swinging back and forth, and further the current receiving sliding shoe 103 can compensate the influence caused by the front and back upward pose and displacement change of the vehicle bogie through a transmission structure between the boot head mechanism 101 and the transmission mechanism 102, and of course, the boot head mechanism 101 and the transmission mechanism 102 can also be fixedly connected by adopting a known general method. Specifically, the head end of drive mechanism 102 is equipped with the mounting groove, the tail end embedding of bootleg mechanism 101 is connected in the mounting groove, and it is articulated with drive mechanism 102 through seventh round pin axle 104, wherein, the length direction and the X axle direction of mounting groove are the same, the axle center direction and the Z axle of seventh round pin axle 104 are the same, and the both ends of mounting groove are open structure, and then for bootleg mechanism 101 provides the swing space, make the bootleg subassembly can be around the Z axle swing in the XOY plane, the luffing motion promptly, can also change the amplitude of bootleg subassembly luffing motion simultaneously through the groove depth of control mounting groove, simple structure and easily manufacturing.

The swing assembly includes an adapting mechanism 201, a swing mechanism and a bracket 202.

The transmission mechanism 102 is rotatably connected to the changeover mechanism 201. Specifically, the transmission mechanism 102 is rotatably connected to the switching mechanism 201 through a sixth pin 203, and an axis of the sixth pin 203 is parallel to the Y axis, that is, the transmission mechanism 102 has a stroke rotating around the Y axis, so as to drive the shoe head mechanism 101, and the shoe collector 103 on the shoe head mechanism 101 also has a stroke rotating around the Y axis, so that the shoe collector 103 can compensate for the influence of the change of the posture and the displacement of the vehicle bogie in the up-down direction through the transmission structure between the transmission mechanism 102 and the switching mechanism 201.

The switching mechanism 201 is hinged at the head end of the swinging mechanism, and the switching mechanism 201 has a stroke of swinging left and right on the swinging mechanism; the tail end of the swing mechanism is hinged on the bracket 202, and the swing mechanism has a stroke of swinging left and right on the bracket 202. Specifically, the swing mechanism includes a first swing link 204 and a second swing link 205, a head end of the first swing link 204 and a head end of the second swing link 205 are hinged to the adapting mechanism 201 through a second pin shaft 206 and a third pin shaft 207, and a tail end of the first swing link 204 and a tail end of the second swing link 205 are hinged to the bracket 202 through a fourth pin shaft 208 and a fifth pin shaft 209; the axes of the second pin shaft 206, the third pin shaft 207, the fourth pin shaft 208 and the fifth pin shaft 209 enclose a quadrilateral structure, and the axes of the second pin shaft 206, the third pin shaft 207, the fourth pin shaft 208 and the fifth pin shaft 209 are all parallel to the Z axis, that is, the swinging mechanism and the switching mechanism 201 all have a left-right swinging stroke, so as to drive the transmission mechanism 102, the shoe head mechanism 101 and the current-receiving sliding shoe 103 on the shoe head mechanism 101 to have a left-right swinging stroke, and further enable the current-receiving sliding shoe 103 to make up for the influence caused by the posture and displacement change of the vehicle bogie in the left-right direction through the transmission structure among the swinging mechanism, the switching mechanism 201 and the bracket 202. In a preferred embodiment, the axes of the second pin 206, the third pin 207, the fourth pin 208, and the fifth pin 209 enclose a parallelogram structure.

More specifically, a driving mechanism 2010 is disposed on the swing assembly for providing a driving torque for swinging the head end of the swing mechanism to the power supply rail. In this embodiment, the driving mechanism 2010 is a spring, one end of the spring is connected to the bracket 202, and the other end of the spring is connected to the first swing link 204 or the second swing link 205. The spring may be a metal extension spring, a metal compression spring, or an air spring, and it is only necessary that the current receiving shoe 103 has a driving torque swinging to the power supply rail. For example, if the spring is a metal extension spring, that is, the spring has a pre-tightening force of a compression spring, in the implementation process, one end of the spring is connected to the tail end of the first swing link 204 or the tail end of the second swing link 205, and the other end of the spring is connected to the bracket 202; if the spring is a metal compression spring, that is, the spring has a pre-tightening force of an extension spring, in the implementation process, one end of the spring is connected to the head end of the first swing link 204 or the head end of the second swing link 205, and the other end of the spring is connected to the bracket 202. The spring illustrated in this embodiment is a metal tension spring.

Preferably, a limit bolt 2011 is arranged on the first swing rod 204 or the second swing rod 205, and the bracket 202 is located on a swing path of the limit bolt 2011 to limit a swing amplitude of the swing mechanism, so that a swing extension limit position size of the swing assembly in the power supply rail direction can be limited, and meanwhile, an outward swing limit position size of the swing assembly can be adjusted by adjusting a screwing size of the limit screw.

It should be noted that, although the swing mechanisms in the present embodiment and the drawings are both a double-swing link structure formed by the first swing link 204 and the second swing link 205, in the process of specific implementation, one swing link or more than three swing links may also be provided, which also has the capability of realizing the left-right swing of the collector shoe 103. Compared with the embodiment of one swing rod or more than three swing rods, the double-swing-rod structure shown in the figure in the embodiment can effectively ensure the stability of transmission, simplify the structure to a certain extent and reduce the material loss during preparation.

The underframe assembly is mainly used for connecting a vehicle bogie, in the embodiment, the underframe assembly comprises a bottom plate 301 and a wire holder 302, a support 202 is rotatably connected on the bottom plate 301, the wire holder 302 is fixedly arranged on the bottom plate 301 and is electrically connected with the shoe head mechanism 101 through a cable 305, and the wire holder 302 is electrically connected with an electrical interface of a vehicle; of course, in the implementation, the wire holder 302 may not be separately provided, that is, the electric interface between the toe mechanism 101 and the vehicle may be directly connected through the electric cable 305. Specifically, a base frame is arranged on the bottom plate 301, the support 202 is rotatably connected to the base frame through a first pin 304, and a limiting structure capable of limiting the rotation range of the support is arranged on the base frame. The base frame comprises two limiting blocks 303 which are arranged on the bottom plate 301 at intervals in the vertical direction, a limiting groove is defined between the two limiting blocks 303, and the support 202 is rotatably connected in the limiting groove through a first pin shaft 304; of course, the number of the limiting blocks 303 may also be set to be one or more than three, that is, the bracket 202 is rotatably connected to the bottom plate 301 at a position adjacent to the limiting blocks, and the rotation range of the bracket 202 may also be limited by one or more than three limiting blocks 303. The axis of the first pin 304 is parallel to the Y-axis, that is, the bracket 202 has a stroke rotating around the Y-axis in the limiting groove, but due to the existence of the limiting block 303, the bracket 202 can only rotate within a certain range. The rotation stroke of the bracket 202 is driven by the swing mechanism, the changeover mechanism 201, the transmission mechanism 102 and the slipper mechanism, so that the fluid-receiving slipper 103 has a stroke of swinging up and down, and the fluid-receiving slipper 103 can compensate for the influence of the position and displacement change of the vehicle bogie in the up-and-down direction through the bracket 202, the swing mechanism, the changeover mechanism 201, the transmission mechanism 102 and the slipper mechanism. In this embodiment, the swing range of the bracket 202 on the limiting groove is ± 45 °.

In this embodiment, the collector shoe 103 has two embodiments:

the first is a V-shaped structure composed of two shoes as shown in fig. 9, the implementation structure has two current-receiving shoes 103, the two current-receiving shoes 103 are symmetrically and fixedly connected to the head end of the shoe mechanism and are in a V-shaped structure, the included angle between the two V-shaped surfaces ranges from 5 ° to 175 °, and when the current-receiving shoes 103 are used in cooperation with a V-shaped power supply rail 401 in engineering application, the dynamic envelope range of the current-receiving shoes 103 on the power supply rail 401 is greatly reduced.

A second embodiment is a single-shoe direct-connection structure shown in fig. 10, in which a current-receiving shoe 103 is provided below the structure, the current-receiving shoe 103 is symmetrically and fixedly connected to the head end of the shoe mechanism, and in engineering application, the current-receiving shoe 103 of the structure is used in cooperation with a slot-type power supply rail 401, so that the dynamic envelope range of the current-receiving shoe 103 on the power supply rail 401 is greatly reduced.

In this embodiment, at least two of the transmission mechanism 102, the adapting mechanism 201, the first swing link 204, the second swing link 205, the bracket 202 and the bottom plate 301 have electrical insulation performance. The process for realizing the electrical insulation performance of the first swing rod 204 is as follows: the first swing link 204 is made of an insulating material or a swing link body made of an insulating material and a metal swing link head; the process of realizing the electrical insulation performance of the second oscillating bar 205 is as follows: the second oscillating bar 205 is made of an insulating material or is composed of an oscillating bar body made of an insulating material and a metal oscillating bar head; the process for realizing the electrical insulation performance of the transmission mechanism 102, the changeover mechanism 201, the bracket 202 and the bottom plate 301 is as follows: the transmission mechanism 102, the adapting mechanism 201, the bracket 202 and the bottom plate 301 are made of insulating materials.

In this embodiment, during the engineering application of the current collector, the current collecting shoe 103 and the head end of the shoe mechanism are located inside the external insulating protective cover 402 of the power supply rail 401, and the tail end of the shoe mechanism is located outside the external insulating protective cover 402 of the power supply rail 401, which is shown in fig. 11. As can be seen from the foregoing description. Under the action of a series of transmission structures, the current-receiving sliding shoes 103 have the strokes of swinging back and forth, up and down, left and right and rotating on the bottom plate 301, the structure of the current-receiving sliding shoes 103 on the power supply rail 401 is optimized, the moving range of the current-receiving sliding shoes 103 on the power supply rail 401 is limited to the structure of the power supply rail 401, the influence caused by the position and the displacement change of a vehicle bogie is compensated through a series of transmission structures on the current receiver, namely, the dynamic envelope range of the current-receiving sliding shoes 103 on the power supply rail 401 is reduced, and an external insulating protective cover 402 of the power supply rail 401 only leaves a narrow opening, so that the electric shock risk is greatly reduced.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A current collector, comprising:

the boot head assembly comprises a boot head mechanism and a transmission mechanism, a current-receiving sliding boot is arranged at the head end of the boot head mechanism, the tail end of the boot head mechanism is hinged to the head end of the transmission mechanism, the boot head mechanism has a forward and backward swinging stroke on the transmission mechanism, and the current-receiving sliding boot is of a V-shaped structure consisting of double boots;

the bracket is rotatably connected to the underframe assembly;

the swing assembly is provided with a driving mechanism for providing a driving moment for swinging the head end of the swing mechanism to the power supply rail;

the chassis component is provided with a base frame, the support is rotationally connected to the base frame through a first pin shaft, the base frame is provided with a limiting structure capable of limiting the rotation amplitude of the support, and the rotation stroke of the support can enable the current-receiving sliding shoe to have an up-and-down swinging stroke through the transmission of the swinging mechanism, the switching mechanism, the transmission mechanism and the sliding shoe mechanism;

the transmission mechanism is rotatably connected to the switching mechanism through a sixth pin shaft, and the axis of the sixth pin shaft is parallel to the axis of the first pin shaft.

2. The current collector according to claim 1, wherein the swing mechanism comprises a first swing link and a second swing link, a head end of the first swing link and a head end of the second swing link are hinged to the switching mechanism through a second pin and a third pin, and a tail end of the first swing link and a tail end of the second swing link are hinged to the bracket through a fourth pin and a fifth pin;

3. The current collector of claim 2, wherein the driving mechanism is a spring, one end of the spring is connected to the bracket, and the other end of the spring is connected to the first swing link or the second swing link.

4. The current collector of claim 2, wherein at least two of the transmission mechanism, the switching mechanism, the first swing link, the second swing link, the bracket and the bottom plate have electrical insulation properties.

5. The current collector according to claim 2, wherein a limiting bolt is disposed on the first swing link or the second swing link, and the bracket is located on a swing path of the limiting bolt for limiting a swing amplitude of the swing mechanism.

6. The current collector as claimed in any one of claims 1 to 5, wherein a mounting groove is formed at a head end of the transmission mechanism, and a tail end of the shoe head mechanism is embedded in the mounting groove and hinged to the transmission mechanism by a seventh pin.

7. The current collector as claimed in any one of claims 1 to 5, wherein the base frame assembly comprises a base plate and a wire holder, the bracket is rotatably connected to the base plate, and the wire holder is fixedly arranged on the base plate and electrically connected to the shoe head mechanism.