New energy tractor rotatable high-voltage power transmission device based on pantograph

Abstract

The invention discloses a pantograph-based rotatable high-voltage power transmission device for a new energy tractor, and the device comprises a sealing tank which is internally provided with a mounting cavity, and the middle part of the mounting cavity is provided with a mounting column; the lower insulator is arranged on the mounting column in a sleeving manner and is positioned at the bottom of the sealing tank; the lower contact carbon ring is arranged on the mounting column in a sleeving manner and is positioned on the lower insulator; the upper contact carbon ring is arranged on the mounting column in a sleeving manner and is positioned on the lower contact carbon ring; the upper insulator is arranged on the mounting column in a sleeving manner and is positioned on the upper contact carbon ring; the sealing rotating part is rotationally arranged on the sealing tank in a sealing manner and is used for pressing the upper insulator so as to enable the upper contact carbon ring and the lower contact carbon ring to be tightly attached; the first electric wire is connected with the lower contact carbon ring, and the first electric wire extends out of the opening in the sealing tank; the second electric wire is connected with the upper contact carbon ring, and the second electric wire extends out of an opening in the sealing rotating component.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and more specifically to a rotatable high-voltage power transmission device for a new energy tractor based on a pantograph. Background Art

[0002] If the high-voltage wire is directly connected between the tractor and the trailer, the tractor and the trailer will rotate at a certain angle when the vehicle turns, and the wire will be fatigued when rotating back and forth. A large rotation angle will also damage the wire. There is a rotatable way to transmit electricity in the prior art. First, based on the high-speed rail pantograph, the pantograph is deformed and designed to be suitable for the trailer. The structure is as follows Figure 1 .

[0003] This device consists of two main parts: an arc seat and a diamond head. Figure 1 The middle arc seat and the end of the diamond head are both made of graphite. The arc seat is installed on the trailer, and the diamond head is installed on the tractor. When the tractor and trailer are combined, this device will automatically combine with the rebound device of the diamond head to make the contact surface fit tightly, and also allow a large adjustment amount at the joint of the tractor and trailer. This device uses sliding contact, and the high-voltage wire is not subjected to variable force and produces unpredictable fatigue damage. However, the volume is relatively large, more materials are required, and it is not easy to achieve sealing and waterproofing. Summary of the invention

[0004] The purpose of the present invention is to provide a rotatable high-voltage power transmission device for a new energy traction vehicle based on a pantograph, in order to solve the technical problems in the background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A pantograph-based rotatable high-voltage power transmission device for a new energy traction vehicle, comprising:

[0007] A sealed can, wherein a mounting cavity is provided in the sealed can, and a mounting column is provided in the middle of the mounting cavity;

[0008] A lower insulator, which is sleeved on the mounting column and located at the bottom of the sealing tank;

[0009] A lower contact carbon ring, wherein the lower contact carbon ring is sleeved on the mounting column and is located on the lower insulator;

[0010] An upper contact carbon ring, wherein the upper contact carbon ring is sleeved on the mounting column and is located on the lower contact carbon ring;

[0011] An upper insulator, wherein the upper insulator is sleeved on the mounting column and located on the upper contact carbon ring;

[0012] A sealing rotating component, wherein the sealing rotating component is rotatably sealed and arranged on the sealing tank, and is used for pressing the upper insulator tightly so that the upper contact carbon ring and the lower contact carbon ring are closely fitted;

[0013] a first wire connected to the lower contact carbon ring and extending from an opening on the sealing can;

[0014] A second wire is connected to the upper contact carbon ring and extends from an opening on the seal rotating member.

[0015] In some embodiments, the sealing rotating component includes a sealing cover, a spring, and a bearing. The bearing is set on the mounting column. The sealing cover is set on the sealing tank through the bearing rotation seal. The sealing cover is provided with a through hole, and the second wire extends from the through hole.

[0016] In some embodiments, the sealing rotating component further includes a spring, which is sleeved on the mounting column and pressed against the upper insulator through the sealing cover.

[0017] In some embodiments, a first annular extension portion is provided in the middle portion of the upper insulator, and the first extension portion is disposed in the upper contact carbon ring.

[0018] In some embodiments, a ring-shaped second extension portion is provided in the middle portion of the sealing cover, and the second extension portion is disposed in the upper insulator.

[0019] In some embodiments, a bearing end cover and a nut are also included. The bearing end cover is arranged on the mounting column, and the bearing end cover is fixed to the sealing cover through a threaded connection between the nut and the mounting column.

[0020] The present invention has the following beneficial effects:

[0021] The technical solution of the present invention is novel in structure and highly practical. When the pantograph is deformed, the two electrodes are connected in series, compressed by a spring device, and encapsulated by a shell, and the entire device is a sealed structure. The cables will also rotate relative to each other, and no deformation will occur during the rotation process, so fatigue damage is unlikely to occur. It is also not easy to leak electricity in a closed space. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the prior art in the background art;

[0023] Figure 2 It is a schematic diagram of the structure of this application.

[0024] Illustration description: 1-lower insulator, 2-upper contact carbon ring, 3-first wire, 4-bearing end cover, 5-nut, 6-bearing, 7-sealing cover, 8-spring, 9-second wire, 10-upper insulator, 11-sealing can, 12-lower contact carbon ring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0026] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element 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 application.

[0029] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0030] The following will be combined Figure 2, a pantograph-based rotatable high-voltage power transmission device for a new energy traction vehicle according to an embodiment of the present application is described in detail. It is worth noting that the following embodiments are only used to explain the present application and do not constitute a limitation on the present application.

[0031] Embodiment 1:

[0032] like Figure 2 As shown, a pantograph-based rotatable high-voltage power transmission device for a new energy tractor comprises: a sealing tank 11, a lower insulator 1, a lower contact carbon ring 12, an upper contact carbon ring 2, an upper insulator 10, a sealed rotating component, a first wire 3, and a second wire 9. The sealing tank 11 is provided with an installation cavity, and a mounting column is provided in the middle of the installation cavity; the lower insulator 1 is sleeved on the mounting column and is located at the bottom of the sealing tank 11; the lower contact carbon ring 12 is sleeved on the mounting column and is located on the lower insulator 1 , the lower contact carbon ring 12 is fixed to the lower insulator 1; the upper contact carbon ring 2 is sleeved on the mounting column and is located on the lower contact carbon ring 12; the upper insulator 10 is sleeved on the mounting column and is located on the upper contact carbon ring 2; the sealing rotating component is rotatably sealed and arranged on the sealing tank 11, which is used to compress the upper insulator 10 so that the upper contact carbon ring 2 and the lower contact carbon ring 12 fit tightly; the middle part of the upper insulator 10 is provided with a ring-shaped first extension part, and the first extension part is arranged in the upper contact carbon ring 2. The first wire 3 is connected to the lower contact carbon ring 12, and the first wire 3 extends from the opening on the sealing tank 11; the second wire 9 is connected to the upper contact carbon ring 2, and the second wire 9 extends from the opening on the sealing rotating component.

[0033] In some embodiments, the sealing rotating component includes a sealing cover 7, a spring 8, and a bearing 6. The bearing 6 is arranged on the mounting column. The sealing cover 7 is rotatably sealed and arranged on the sealing tank 11 through the bearing 6. The upper insulator 10 is connected to the sealing cover 7 through a spline. The upper insulator 10 and the sealing cover 7 can move axially relative to each other but cannot rotate relative to each other. The sealing cover 7 is provided with a through hole, and the second electric wire 9 extends from the through hole. The sealing rotating component also includes a spring 8, which is sleeved on the mounting column and pressed against the upper insulator 10 through the sealing cover 7. The middle part of the sealing cover 7 is provided with an annular second extension portion, and the second extension portion is arranged in the upper insulator 10.

[0034] In some embodiments, a bearing end cover 4 and a nut 5 are also included. The bearing end cover 4 is arranged on the mounting column, and the bearing end cover 4 is fixed to the sealing cover 7 by threaded connection between the nut 5 and the mounting column. The nut 5 presses the bearing end cover 4, and the bearing 6 transmits the pressure of the end cover to the sealing cover 7, so that the spring 8 presses the upper insulator 10, so that the upper and lower contact carbon rings fit tightly.

[0035] When the sealing cover 7 and the sealing tank 11 rotate relative to each other, the sealing cover 7 drives the upper insulator 10 and the upper contact carbon ring 2 to rotate, and the contact surfaces of the upper and lower contact carbon rings will slide relative to each other, but always keep in contact to keep the current flowing. The first cable and the second cable will also rotate relative to each other, and the cables will not deform during the rotation process, so fatigue damage is unlikely to occur. It is also not easy to leak electricity in a closed space.

[0036] The above description is only a preferred embodiment of the present invention and is used to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotatable high-voltage power transmission device for a new energy traction vehicle based on a pantograph, characterized in that: include: A sealed can, wherein a mounting cavity is provided in the sealed can, and a mounting column is provided in the middle of the mounting cavity; A lower insulator, which is sleeved on the mounting column and located at the bottom of the sealing tank; A lower contact carbon ring, wherein the lower contact carbon ring is sleeved on the mounting column and is located on the lower insulator; An upper contact carbon ring, wherein the upper contact carbon ring is sleeved on the mounting column and is located on the lower contact carbon ring; An upper insulator, wherein the upper insulator is sleeved on the mounting column and located on the upper contact carbon ring; A sealing rotating component, wherein the sealing rotating component is rotatably sealed and arranged on the sealing tank, and is used for pressing the upper insulator tightly so that the upper contact carbon ring and the lower contact carbon ring are closely fitted; a first wire connected to the lower contact carbon ring and extending from an opening on the sealing can; A second wire is connected to the upper contact carbon ring and extends from an opening on the seal rotating member.

2. According to claim 1, a pantograph-based rotatable high-voltage power transmission device for a new energy traction vehicle is characterized in that: The sealing rotating component comprises a sealing cover, a spring and a bearing. The bearing is arranged on the mounting column. The sealing cover is arranged on the sealing tank through the bearing rotation sealing. The sealing cover is provided with a through hole, and the second electric wire extends out from the through hole.

3. A rotatable high-voltage power transmission device for a new energy traction vehicle based on a pantograph according to claim 2, characterized in that: The sealing rotating component also includes a spring, which is sleeved on the mounting column and pressed onto the upper insulator through the sealing cover.

4. A rotatable high-voltage power transmission device for a new energy traction vehicle based on a pantograph according to claim 2, characterized in that: A first annular extension portion is provided in the middle of the upper insulator, and the first extension portion is arranged in the upper contact carbon ring.

5. The rotatable high-voltage power transmission device for a new energy traction vehicle based on a pantograph according to claim 2 is characterized in that: A ring-shaped second extension portion is provided in the middle of the sealing cover, and the second extension portion is arranged in the upper insulator.

6. A pantograph-based rotatable high-voltage power transmission device for a new energy traction vehicle according to claim 2, characterized in that: It also includes a bearing end cover and a nut. The bearing end cover is arranged on the mounting column, and the bearing end cover is fixed on the sealing cover through a threaded connection between the nut and the mounting column.

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