Side pantograph assembly, power receiving device and vehicle

Abstract

The invention discloses a side pantograph assembly, a power receiving device and a vehicle, the side pantograph assembly comprises a bearing frame, a side guide wheel set and a supporting roller set, the side guide wheel set comprises two side guide rollers which abut against the side walls of two supporting rails respectively, and the side guide rollers are installed on the bearing frame. The supporting roller set comprises two supporting rollers which abut against the two supporting rail top arms respectively, and the supporting rollers are installed on the bearing frame. According to the side pantograph assembly provided by the invention, the side pantograph assembly is connected with the supporting rail and the power receiving rail through the lateral guide rollers and the supporting rollers, so that sliding contact is changed into rolling contact, the friction force is reduced, and the use safety of a vehicle is further improved.

Description

Technical Field

[0001] This invention relates to the field of mining side-mounted power receiving systems, and particularly to a side-mounted pantograph assembly, a power receiving device, and a vehicle. Background Technology

[0002] The mine-side power receiving system mainly consists of a traction substation, a power receiving rail, a power receiving device, and mine cars. The traction substation provides the power source and is connected to the power receiving device via the power receiving rail. The power receiving device is installed on the side of the mine car to extract electrical energy from it.

[0003] Top-mounted pantographs suffer from insufficient adaptability and high installation / removal difficulty in special operating conditions such as mines and tunnels with limited clearance. In mining operations, the complex road environment significantly impacts the contact stability between the pantograph and the overhead contact line. Power transmission efficiency and vehicle operational reliability are critical; poor contact can easily lead to electric arcing and component ablation, increasing operating costs and safety hazards. Therefore, side-mounted pantographs have begun to be used.

[0004] Traditionally, a vertical baffle is installed in the side pantograph as a limiting device for lateral movement. However, the sliding friction between the pantograph and the rail creates significant lateral forces during vehicle turns. This increased lateral force leads to increased friction between the vertical baffle and the side of the rail. The side pantograph may then use the point of greatest contact force as its fulcrum, causing it to tip over, thus reducing vehicle safety.

[0005] Therefore, how to improve vehicle safety is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a side pantograph assembly to improve vehicle safety. Another purpose of this invention is to provide a power receiving device. Yet another purpose of this invention is to provide a vehicle.

[0007] The side pantograph assembly provided in this application includes:

[0008] Support frame;

[0009] A side guide wheel assembly, comprising two lateral guide rollers that abut against the side walls of two support rails respectively, the lateral guide rollers being mounted on the support frame; the two lateral guide rollers of the side guide wheel assembly are respectively able to abut against two opposing sides of the support rail; or, the two lateral guide rollers of the side guide wheel assembly are respectively able to abut against two opposite sides of the support rail.

[0010] The support roller assembly includes two support rollers that abut against the top arms of the two support rails respectively, and the support rollers are mounted on the support frame.

[0011] Optionally, the lateral guide rollers are fixed to the support frame by guide roller brackets, and the height and spacing of the lateral guide rollers relative to the support rails are adjustable.

[0012] Optionally, the support frame is provided with a connecting plate, and the connecting plate is provided with mounting holes arranged in an array, and the guide wheel bracket can be installed in different mounting holes.

[0013] Optionally, the support frame includes a first support member and a second support member arranged sequentially along the travel direction. The two ends of the first support member and the second support member are enclosed by an intermediate connector to form a rectangular structure. The first support member is provided with the side guide wheel group and the support roller group, and the second support member is provided with the side guide wheel group and the support roller group.

[0014] Optionally, it also includes:

[0015] Front entry guide rollers are disposed at opposite ends of the first support member and are used to contact the net baffle; one front entry guide roller is disposed at one end of the first support member, or at least two front entry guide rollers are disposed at one end of the first support member along the traveling direction.

[0016] Rear entry guide rollers are disposed at opposite ends of the second support member and are used to contact the entry baffle; one rear entry guide roller is disposed at one end of the second support member, or at least two rear entry guide rollers are disposed at one end of the second support member along the traveling direction.

[0017] Optionally, it also includes a mounting plate connecting the first support member and the second support member. The mounting plate is connected to the bow arm via a cross shaft universal coupling and a flange fork. The mounting plate is located between the two intermediate connecting members.

[0018] Optionally, it also includes a spring support installed at the bottom end of the support frame and a power receiving shoe installed at the bottom end of the spring support, the power receiving shoe being used to contact the power receiving rail.

[0019] A power receiving device includes power receiving rails, support rails, and a side pantograph assembly as described in any of the preceding claims, wherein two power receiving rails are located between two support rails, and the included angle formed by the extended surfaces of the contact surfaces of the two power receiving rails abutting against the power receiving shoe of the side pantograph assembly is an acute angle.

[0020] Optionally, the included angle is less than or equal to 60°.

[0021] A vehicle, characterized in that it includes a power receiving device, wherein the power receiving device is the power receiving device described above.

[0022] In the above technical solution, the side pantograph assembly provided by the present invention includes a support frame, a side guide wheel assembly, and a support roller assembly. The side guide wheel assembly includes two lateral guide rollers that abut against the side walls of two support rails respectively, and the lateral guide rollers are mounted on the support frame. The support roller assembly includes two support rollers that abut against the top arms of two support rails respectively, and the support rollers are mounted on the support frame.

[0023] As described above, in the side pantograph assembly provided in this application, the side pantograph assembly, through the lateral guide rollers and support rollers, and the support rail and power receiving rail structure, changes the sliding contact to rolling contact, reduces friction, and thus improves vehicle safety. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the power receiving device provided in an embodiment of the present invention;

[0026] Figure 2 This is a front view of the power receiving device provided in an embodiment of the present invention;

[0027] Figure 3 This is a side view of the power receiving device provided in an embodiment of the present invention.

[0028] in Figure 1-3 In the middle: 1. Bearing frame; 1-1. First support member; 1-2. Second support member; 1-3. Intermediate connecting member; 2. Mounting plate; 3. Support rail; 3-1. Base; 3-2. Waist; 3-3. Head; 4. Power receiving shoe; 5. Power receiving rail; 6. Spring support member; 7. Lateral guide roller; 8. Support roller; 9. Rear entry rail guide roller; 10. Front entry rail guide roller. Detailed Implementation

[0029] The core of this invention is to provide a side pantograph assembly to improve vehicle safety. Another core of this invention is to provide a power receiving device. Yet another core of this invention is to provide a vehicle.

[0030] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Please refer to Figures 1 to 3 .

[0032] In one specific embodiment, the side pantograph assembly provided by this invention includes a support frame 1, a lateral guide wheel assembly, and a support roller assembly. The lateral guide wheel assembly includes two lateral guide rollers 7 that abut against the side walls of two support rails 3, respectively, and the lateral guide rollers 7 are mounted on the support frame 1. The support roller assembly includes two support rollers 8 that abut against the top arms of the two support rails 3, respectively, and the support rollers 8 are mounted on the support frame 1. To improve support stability, preferably, each support rail 3 is in contact with at least two support rollers 8, and each support rail 3 is in contact with at least two lateral guide rollers 7.

[0033] Specifically, such as Figure 1 As shown, the support rail 3 has an I-shaped structure. The lateral guide roller 7 can abut against the side wall of the head 3-3 of the support rail 3 to achieve guidance, and the support roller 8 abuts against the top wall of the head 3-3 of the support rail 3. The head is connected to the base 3-1 through the waist 3-2, and the width of the waist 3-2 is smaller than that of the head 3-3 and the base 3-1.

[0034] The rotation axis of the support roller 8 is perpendicular to the vehicle's direction of travel, and the rotation axis of the lateral guide roller 7 is perpendicular to the rotation axis of the support roller 8, and also perpendicular to the vehicle's direction of travel. Specifically, the rotation axis of the lateral guide roller 7 and the rotation axis of the support roller 8 are preferably in the same plane. The support rail 3 makes positive contact to provide support for the pantograph.

[0035] like Figure 1 and Figure 2 As shown, the two lateral guide rollers 7 of the lateral guide wheel assembly abut against the two opposite sides of the support rail 3. At this time, the lateral guide wheel assembly is located between the two sets of support rollers 8.

[0036] Of course, the two lateral guide rollers 7 of the lateral guide wheel assembly abut against the two opposite sides of the support rail 3. At this time, the support roller 8 is located between the two sets of lateral guide wheel assemblies.

[0037] During assembly, the lateral guide rollers 7 are fixed to the support frame 1 via guide roller brackets. The height and spacing of the lateral guide rollers 7 relative to the support rails 3 are adjustable. The guide roller brackets can be adjusted to accommodate different types of support rails 3, adjusting their contact height and distance from the support rails 3 accordingly. For example, the support frame 1 may have a connecting plate with an array of mounting holes. The guide roller brackets can adjust the position of the lateral guide rollers 7 relative to the support rails 3 through the mounting holes on the connecting plate, thereby improving versatility.

[0038] Alternatively, the connecting plate is provided with a slide rail arranged in the vertical direction, and there are limiting holes on both sides of the slide rail. The guide wheel bracket is connected to the connecting plate by threaded fasteners passing through the slide rail. The position adjustment of the lateral guide roller 7 is realized by fixing the threaded fasteners to different limiting holes.

[0039] Among them, the support rail 3 can be a No. 24 steel rail. The power receiving rail 5 makes contact with the power receiving shoe 4 to transmit electrical energy to the vehicle.

[0040] As described above, in the side pantograph assembly provided in the specific embodiments of this application, the side pantograph assembly, through the structure of lateral guide rollers 7 and support rollers 8 with support rails 3 and power receiving rails 5, changes the sliding contact to rolling contact, reducing friction. This application uses lateral guide rollers 7 instead of the wheel flange design in rail transit for lateral restraint, dispersing the huge lateral forces caused by unstable vehicle operation or turning, avoiding the side pantograph assembly from tipping over due to the huge friction caused by traditional wheel flange guide structures, enhancing the stability of the side pantograph assembly during operation, and thus improving vehicle safety.

[0041] In one specific embodiment, the support frame 1 includes a first support member 1-1 and a second support member 1-2 arranged sequentially along the travel direction. The two ends of the first support member and the second support member 1-2 are enclosed by an intermediate connector 1-3 to form a rectangular structure. The first support member 1-1 is provided with a side guide wheel assembly and a support roller assembly, and the second support member 1-2 is provided with a side guide wheel assembly and a support roller assembly.

[0042] Specifically, the first support 1-1 and the second support 1-2 are hollow square steel structures. Since the bearing frame 1 is a frame structure, the overall mass of the side pantograph assembly is greatly reduced.

[0043] In one specific embodiment, the pantograph assembly further includes a front entry guide roller 10 disposed at opposite ends of the first support member 1-1 for contacting the entry barrier, and a rear entry guide roller 9 disposed at opposite ends of the second support member 1-2 for contacting the entry barrier. Specifically, one front entry guide roller 10 is located at one end of the first support member 1-1. To improve stability, alternatively, such as... Figure 1 As shown, at least two front entry guide rollers 10 are provided at one end of the first support member 1-1 along the traveling direction. At this time, the rotation axes of the two front entry guide rollers 10 are arranged in parallel. Preferably, the two front entry guide rollers 10 are also the same.

[0044] One end of the second support member 1-2 has a rear guide roller 9. Alternatively, it can be... Figure 1 As shown, at least two rear entry guide rollers 9 are provided at one end of the second support member 1-2 along the traveling direction. The rotation axes of the two rear entry guide rollers 9 are parallel. Preferably, the two rear entry guide rollers 9 are also identical. To improve versatility, preferably, the front entry guide roller 10 and the rear entry guide roller 9 are rollers with the same structure, thus avoiding the need for reinstallation if they are installed in reverse.

[0045] When the pantograph enters the power grid, the front guide roller 10 provides guidance for the side pantograph assembly. The front guide roller 10 contacts the power grid entry baffle, which narrows to limit its movement. The rear guide roller 9 provides stability during pantograph entry. After the pantograph is successfully entered the grid, the contact surfaces of the front and rear guide rollers 10 and 9 no longer contact other structures.

[0046] In one specific embodiment, the side pantograph assembly further includes a mounting plate 2 connecting the first support member 1-1 and the second support member 1-2. Specifically, the side pantograph support frame is connected to the mounting plate 2 via a pin. The mounting plate 2 is connected to the pantograph arm via a universal joint and a flange fork. Specifically, the flange fork is fixedly connected to the pantograph arm, and the mounting plate 2 is located between two intermediate connecting members 1-3. The universal joint provides longitudinal rotational freedom, that is, the universal joint of the universal joint provides freedom for the pantograph head during operation, reducing the impact of vehicle bumps and turns on the side pantograph assembly in the X / Y directions.

[0047] Based on the above solutions, the pantograph assembly also includes a spring support 6 mounted on the bottom of the support frame 1 and a pantograph shoe 4 mounted on the bottom of the spring support 6. The pantograph shoe 4 is used to contact the pantograph rail 5. Specifically, the pantograph shoe 4 can be a carbon sliding plate. The spring support provides the pantograph shoe 4 with lateral freedom and preload, ensuring that the pantograph shoe 4 can stably contact the pantograph rail 5 at different rail slopes and angles.

[0048] In practical use, an insulator can be added between the power receiving shoe 4 and the support frame 1 to provide electrical insulation and mechanical support.

[0049] This application provides a power receiving device including power receiving rails 5, support rails 3, and the aforementioned side pantograph assembly. Two power receiving rails 5 are located between two support rails 3, and the included angle formed by the extended surfaces of the contact surfaces of the two power receiving rails 5 that abut against the power receiving shoe 4 is an acute angle. Figure 1 and Figure 2 As shown, the extended surfaces of the contact surfaces on the two power receiving rails 5 that abut against the power receiving shoe 4 form a V-shaped structure.

[0050] Specifically, the acute angle is less than or equal to 60°. For example, the included angle formed by the extended surfaces of the contact surfaces of the two power receiving rails 5 that abut against the power receiving shoe 4 is 20°-40°. Preferably, the included angle formed by the extended surfaces of the contact surfaces of the two power receiving rails 5 that abut against the power receiving shoe 4 is 25°. The 25° angle deflection contact method between the power receiving rails 5 and the power receiving shoe 4 of this invention can maintain centering by the weight of the pantograph itself. This achieves automatic centering on straight and curved sections of the track, maintaining operational stability and ensuring that the pantograph head is centered during normal operation, thus improving operational stability.

[0051] This application provides a vehicle that includes a power receiving device, wherein the power receiving device is any of the aforementioned power receiving devices. The specific structure of the power receiving device has been described above; this application includes the aforementioned power receiving device and also achieves the aforementioned technical effects.

[0052] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A side pantograph assembly, characterized in that, include: Support frame (1); A side guide wheel assembly, comprising two lateral guide rollers (7) that abut against the side walls of two support rails (3), the lateral guide rollers (7) being mounted on the support frame (1); the two lateral guide rollers (7) of the side guide wheel assembly abut against two opposing sides of the support rails (3); or, the two lateral guide rollers (7) of the side guide wheel assembly abut against two opposing sides of the support rails (3); The support roller assembly includes two support rollers (8) that abut against the top arms of the two support rails (3) respectively, and the support rollers (8) are mounted on the support frame (1).

2. The side pantograph assembly according to claim 1, characterized in that, The lateral guide roller (7) is fixed on the support frame (1) by the guide roller bracket, and the height and spacing of the lateral guide roller (7) relative to the support rail (3) are adjustable.

3. The side pantograph assembly according to claim 2, characterized in that, The support frame (1) is provided with a connecting plate, and the connecting plate is provided with mounting holes arranged in an array. The guide wheel bracket can be installed in different mounting holes.

4. The side pantograph assembly according to claim 1, characterized in that, The support frame (1) includes a first support member (1-1) and a second support member (1-2) arranged sequentially along the travel direction. The two ends of the first support member (1-1) and the second support member (1-2) are enclosed by an intermediate connector (1-3) to form a rectangular structure. The first support member (1-1) is provided with the side guide wheel group and the support roller group, and the second support member (1-2) is provided with the side guide wheel group and the support roller group.

5. The side pantograph assembly according to claim 4, characterized in that, Also includes: Front entry guide rollers (10) are disposed at opposite ends of the first support member (1-1) and are used to contact the net baffle; one front entry guide roller (10) is disposed at one end of the first support member (1-1), or at least two front entry guide rollers (10) are disposed at one end of the first support member (1-1) along the traveling direction. Rear entry guide rollers (9) are provided at opposite ends of the second support member (1-2) and are used to contact the entry baffle; one of the rear entry guide rollers (9) is provided at one end of the second support member (1-2), or at least two of the rear entry guide rollers (9) are provided at one end of the second support member (1-2) along the traveling direction.

6. The side pantograph assembly according to claim 4, characterized in that, It also includes a mounting plate (2) connecting the first support member (1-1) and the second support member (1-2). The mounting plate (2) is connected to the bow arm via a cross shaft universal coupling and a flange fork. The mounting plate (2) is located between the two intermediate connecting members (1-3).

7. The side pantograph assembly according to any one of claims 1-6, characterized in that, It also includes a spring support (6) installed at the bottom of the support frame (1) and a power receiving shoe (4) installed at the bottom of the spring support (6), the power receiving shoe (4) being used to contact the power receiving rail (5).

8. A power receiving device, characterized in that, Includes a power receiving rail (5), a support rail (3), and a side pantograph assembly as described in any one of claims 1-7, wherein the two power receiving rails (5) are located between the two support rails (3), and the angle formed by the extended surfaces of the contact surfaces of the two power receiving rails (5) that abut against the power receiving shoe (4) of the side pantograph assembly is an acute angle.

9. The power receiving device according to claim 8, characterized in that, The included angle is less than or equal to 60°.

10. A vehicle, characterized in that, Includes a power receiving device, wherein the power receiving device is the power receiving device as described in claim 8 or 9.

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