Pantograph head suspension device

Abstract

A pantograph head suspension device relates to the technical field of pantographs and comprises a connecting rod, a carbon slide plate assembly, a connecting frame and an arc-shaped plate spring. Connecting frames are mounted at the two ends of the connecting rod; carbon sliding plate assemblies are arranged on the two sides of the connecting rod, and arc-shaped plate springs are arranged between the bottoms of the two ends of the carbon sliding plate assemblies and the corresponding ends of the connecting frame; one end of the arc-shaped plate spring is correspondingly fastened and connected with the connecting frame, and the other end is correspondingly hinged with the carbon slide plate assembly; the arc-shaped plate springs are arranged between the bottoms of the two ends of the carbon sliding plate assembly and the corresponding ends of the connecting frame, the arc-shaped plate springs can buffer up-down vibration and left-right vibration of the carbon sliding plate assembly, vibration impact force between pantographs and catenaries is absorbed through deformation of the arc-shaped plate springs, the pantographs and the catenaries are kept in good contact, and the service life of the pantographs and the catenaries is prolonged. The service life of the carbon slide plate assembly can be prolonged; and meanwhile, the wind area of the arc-shaped plate spring is small, and the overall stability can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pantographs, in particular to a pantograph head suspension device. Background Art

[0002] As is known, the pantograph contacts the catenary through the sliding plate on its head to transmit the electric energy on the catenary to the train, thereby driving the train; among them, the pantograph absorbs the vibration and impact encountered during the train operation through its suspension system to reduce the damage to the catenary and the pantograph itself; however, the existing suspension system of the pantograph can only absorb the impact force of the up-and-down vibration between the pantograph and the catenary, and cannot effectively buffer and absorb the impact force in other directions;

[0003] Chinese Patent (Publication No.: CN212022343U) discloses a pantograph head suspension device; this patent includes a bearing plate, a bracket, a guide rod, and a leaf spring. The middle part of the leaf spring is located inside the bracket, and both ends of the leaf spring pass through the bracket and are respectively connected to the two bearing plates; the leaf spring has a characteristic of variable stiffness, and when the bearing plate connected to the carbon sliding plate is subjected to a small or large force, the leaf spring can play a buffering role; although the structure of this patent is simple, it only has the function of buffering the up-and-down vibration impact force between the pantograph and the catenary; however, when the train runs at high speed, the pantograph will also be subjected to impact forces in the left and right directions, and the structure of this patent cannot absorb the impact forces in the left and right directions. Summary of the Utility Model

[0004] In order to overcome the deficiencies in the background art, the utility model discloses a pantograph head suspension device.

[0005] In order to achieve the above-mentioned invention purpose, the utility model adopts the following technical scheme:

[0006] A pantograph head suspension device includes a connecting rod and a carbon sliding plate assembly, and also includes a connecting frame and an arc-shaped leaf spring; both ends of the connecting rod are installed with connecting frames; carbon sliding plate assemblies are arranged on both sides of the connecting rod, and arc-shaped leaf springs are arranged between the bottom of both ends of the carbon sliding plate assembly and the corresponding ends of the connecting frame; one end of the arc-shaped leaf spring is fixedly connected to the corresponding connecting frame, and the other end is hinged to the corresponding carbon sliding plate assembly.

[0007] Preferably, the arc-shaped leaf spring is correspondingly hinged to the carbon sliding plate assembly through a hinge assembly, and one end of the arc-shaped leaf spring corresponding to the hinge assembly is provided with a ring structure; the hinge assembly includes a hinge seat fixedly connected to the corresponding carbon sliding plate assembly, and a hinge shaft passing through the ring structure of the arc-shaped leaf spring is movably inserted into the hinge seat.

[0008] Preferably, a bushing corresponding to and stably fitted with the ring structure of the arc-shaped leaf spring is sleeved on the shaft body of the hinge shaft located inside the ring structure of the arc-shaped leaf spring.

[0009] Preferably, springs are sleeved on the shaft bodies of both ends of the hinge shaft corresponding to the bushings and the hinge seats.

[0010] Preferably, conical caps are provided at both ends of the hinge shaft.

[0011] Preferably, a support plate is fixedly connected to the connecting frame at the position corresponding to the arc-shaped leaf spring, and a ring buckle for tightening the arc-shaped leaf spring is provided at the free end of the support plate.

[0012] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0013] A pantograph head suspension device disclosed by the utility model has a simple structure. Arc-shaped leaf springs are provided between the bottoms of both ends of the carbon slide plate assembly and the corresponding ends of the connecting frame. The arc-shaped leaf springs can deform up and down and left and right, that is, the arc-shaped leaf springs can buffer the up-and-down and left-and-right vibrations of the carbon slide plate assembly. Through the deformation of the arc-shaped leaf springs, the vibration impact force between the pantograph and the catenary is absorbed, so that the pantograph and the catenary maintain good contact, and the service life of the carbon slide plate assembly can be improved; at the same time, the arc-shaped leaf springs have a small windward area, which can effectively improve the overall stability.

[0014] In addition, the arc-shaped leaf spring is correspondingly hinged to the carbon slide plate assembly through a hinge assembly, which can effectively ensure the stability of the hinge between the arc-shaped leaf spring and the carbon slide plate assembly; springs are sleeved on the shaft bodies of both ends of the hinge shaft corresponding to the bushings and the hinge seats, that is, the impact force in the direction perpendicular to the axis direction of the length of the carbon slide plate assembly can be buffered by the springs, further improving the stability of the carbon slide plate assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the utility model;

[0016] Figure 2 is a structural schematic diagram of the hinge assembly;

[0017] Figure 3 is a structural schematic diagram of the support plate.

[0018] In the figure: 1, connecting rod; 2, carbon slide plate assembly; 3, connecting frame; 4, arc-shaped leaf spring; 5, hinge assembly; 5-1, hinge seat; 5-2, hinge shaft; 5-3, bushing; 5-4, spring; 5-5, conical cap; 6, support plate; 7, ring buckle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application 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 direction.

[0020] Embodiment 1, in combination with Figures 1 - 2 , a pantograph bow head suspension device, comprising a connecting rod 1 and a carbon slide plate assembly 2, which can be used to fasten the connecting rod 1 to the upper frame of the pantograph system, and the upper frame drives the connecting rod 1 and then drives the carbon slide plate assembly 2 to raise or lower the bow; it also comprises a connecting frame 3 and an arc leaf spring 4; connecting frames 3 are installed at both ends of the connecting rod 1; carbon slide plate assemblies 2 are arranged on both sides of the connecting rod 1, and arc leaf springs 4 are arranged between the bottoms of both ends of the carbon slide plate assembly 2 and the corresponding ends of the connecting frame 3, the arc leaf spring 4 can be deformed up and down and left and right, that is, the arc leaf spring 4 can form a buffering effect on the up and down and left and right vibrations of the carbon slide plate assembly 2, and absorb the vibration impact force between the bow and the net through the deformation of the arc leaf spring 4, so that the bow and the net maintain good contact, and the service life of the carbon slide plate assembly 2 can be improved; one end of the arc leaf spring 4 is fastened to the connecting frame 3, and the other end is hinged to the carbon slide plate assembly 2, the structure is simple, the wind-receiving area of ​​the arc leaf spring 4 is small, and the overall stability can be effectively improved.

[0021] It should be noted that the arc leaf spring 4 is hinged to the carbon slide assembly 2 via the hinge assembly 5, and one end of the arc leaf spring 4 corresponding to the hinge assembly 5 is provided with a ring structure; Figure 2 As shown, the hinge assembly 5 includes an hinge seat 5-1 which is fastened corresponding to the carbon skateboard assembly 2, and the hinge seat 5-1 is movably connected with a hinge shaft 5-2 which penetrates the annular structure of the arc leaf spring 4; further, the hinge shaft 5-2 is located in the annular structure of the arc leaf spring 4, and the shaft body is provided with a bushing 5-3 which corresponds to the annular structure of the arc leaf spring 4 and is stably matched, which can effectively ensure the stability of the hinge between the arc leaf spring 4 and the carbon skateboard assembly 2.

[0022] Embodiment 2: In actual use, it is found that the carbon slide assembly 2 is subjected to impact forces in the vertical and horizontal directions in addition to the impact forces in the vertical direction of the longitudinal axis of the carbon slide assembly 2. However, the above embodiment does not have the ability to buffer the impact forces. In order to solve this technical problem, this embodiment is further improved.

[0023] Combined with Figures 1 - 2, a pantograph bow head suspension device, which is different from Example 1 in that, on the basis of Example 1, springs 5-4 are sleeved on the shaft body between the corresponding bushings 5-3 and the articulated seat 5-1 at both ends of the articulated shaft 5-2, that is, the impact force perpendicular to the longitudinal axis of the carbon slide board assembly 2 can be buffered by the spring 5-4, thereby further improving the stability of the carbon slide board assembly 2; conical caps 5-5 are provided at both ends of the articulated shaft 5-2, which can effectively reduce the wind resistance of the articulated shaft 5-2.

[0024] Embodiment 3, in combination with Figure 3 , a pantograph bow head suspension device, based on embodiment 1 or 2, the connecting frame 3 is fastened with a support plate 6 at the position corresponding to the arc leaf spring 4, and the free end of the support plate 6 is provided with a ring buckle 7 for tightening the arc leaf spring 4, which can effectively reduce the deformation of the arc leaf spring 4 and the connecting frame 3 at the corresponding connection position, and when absorbing the vibration impact force between the bow and the net, the arc leaf spring 4 is deformed preferentially from the arc position in the middle, thereby preventing the arc leaf spring 4 from being excessively deformed and accidentally broken at the corresponding connection position with the connecting frame 3.

[0025] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A pantograph head suspension device, comprising a connecting rod (1) and a carbon slide assembly (2), characterized in that: It also comprises a connecting frame (3) and an arc leaf spring (4); the connecting frame (3) is installed at both ends of the connecting rod (1); a carbon slide assembly (2) is provided on both sides of the connecting rod (1), and an arc leaf spring (4) is provided between the bottom of both ends of the carbon slide assembly (2) and the corresponding end of the connecting frame (3); one end of the arc leaf spring (4) is correspondingly fastened to the connecting frame (3), and the other end is correspondingly hinged to the carbon slide assembly (2).

2. The pantograph head suspension device according to claim 1, characterized in that: The arc leaf spring (4) is hinged to the carbon slide assembly (2) via a hinge assembly (5), and an annular structure is provided at one end of the arc leaf spring (4) corresponding to the hinge assembly (5); the hinge assembly (5) comprises an hinge seat (5-1) which is fastened to the carbon slide assembly (2), and the hinge seat (5-1) is movably connected with an hinge shaft (5-2) which penetrates the annular structure of the arc leaf spring (4).

3. The pantograph head suspension device according to claim 2, characterized in that: The hinge shaft (5-2) is located in the annular structure of the arc-shaped leaf spring (4), and the shaft body is sleeved with a bushing (5-3) that corresponds to and stably matches the annular structure of the arc-shaped leaf spring (4).

4. The pantograph head suspension device according to claim 3, characterized in that: Springs (5-4) are sleeved on the shaft body between the corresponding bushings (5-3) and the hinge seat (5-1) at both ends of the hinge shaft (5-2).

5. The pantograph head suspension device according to any one of claims 2 to 4, characterized in that: Conical caps (5-5) are provided at both ends of the hinge shaft (5-2).

6. The pantograph head suspension device according to claim 1, characterized in that: The connection frame (3) is fastened with a support plate (6) at a position corresponding to the arc-shaped leaf spring (4), and a ring buckle (7) for tightening the arc-shaped leaf spring (4) is provided at a free end of the support plate (6).

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