Portable carbon brush replacement structure of current collection system

Abstract

A portable carbon brush replacement structure of a current collection system comprises an elbow connected with a lower fork arm of a current collection pole, the other end of the elbow is connected with a screw rod, and a connecting seat is arranged on the screw rod; a through hole is formed in the top of the connecting base and connected with a horizontal air cylinder through a pin shaft. A shock absorption cushion block is arranged below the connecting base, the lower end face of the shock absorption cushion block is an arc face, and the arc face is matched with an upper bent pipe of the lower fork arm in shape. And the connecting seat is fixed on the screw rod through two elastic gaskets and a nut. Compared with the prior art, the utility model has the following beneficial effects: the device can be well applied to a current collection system, and a current collection head carbon brush of the current collection system needs to be replaced after being worn.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the trolley bus field, concretely relates to a portable replacement carbon brush structure of current collection system. BACKGROUND

[0002] The current collection system is applied to the trolley bus, is the link between the trolley bus and high-voltage cable, and functions to convert and connect, i.e., converting the current in the high-voltage cable into voltage and current values required for driving the whole vehicle through DC / DC voltage and current conversion, and then driving the whole vehicle.

[0003] The carbon brush is the part directly contacted by the current collection system and the power grid, and energy is transmitted to the whole current collection system through the sliding of the carbon brush on the power grid.

[0004] The carbon brush in the current collector head of the current collection system is a part that is prone to wear and tear, as the carbon brush is always in contact with the wire net and is always subjected to the force of a large tension spring during the contact process. After being used for a period of time, the carbon brush will be worn and torn, thereby being disabled. In this case, the carbon brush needs to be frequently replaced. The whole current collection system is located on the top of the vehicle, which is high and difficult to replace. Moreover, the replacement of the carbon brush of the current collection system is currently mostly performed by lifting the human body to a high position through a ladder or other means, which is not only inconvenient but also has a large safety hazard in some cases. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that the replacement of the carbon brush is inconvenient and maintenance has safety hazards in the prior art, and provides a portable replacement carbon brush structure of current collection system.

[0006] To solve the above problems, the utility model is implemented by the following technical scheme:

[0007] A portable replacement carbon brush structure of current collection system, comprising an elbow connected with a lower fork arm of a current collecting rod, another end of the elbow being connected with a screw rod, and a connecting seat being arranged on the screw rod;

[0008] A through hole is arranged on the top of the connecting seat, and the through hole is connected with a horizontal cylinder through a pin shaft; a damping pad block is arranged below the connecting seat, and the lower end surface of the damping pad block is an arc surface matched with the shape of the upper elbow pipe of the lower fork arm.

[0009] The connecting seat is fixed on the upper surface of the screw rod through two elastic washers and a nut.

[0010] A wear-resistant copper sleeve is installed on the elbow.

[0011] The screw rod is fixed with the elbow through an elastic pin.

[0012] The hoop is fixed on the connecting seat through the lock washer and the lock nut.

[0013] Compared with the prior art, the utility model has the advantages that the utility model discloses can be better applied to the current collecting system, and the carbon brush of the current collecting head of the current collecting system needs to be replaced after wearing. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the convenient carbon brush replacing structure of the utility model;

[0015] Figure 2 It is a plan view;

[0016] Figure 3 It is a sectional view;

[0017] Figure 4 It is an axial side view. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0020] As shown in Figure 1 — Figure 4 A portable carbon brush replacing structure of a current collecting system, which comprises an elbow 8 connected with a lower fork arm of a current collecting rod, the other end of the elbow 8 is connected with a screw rod 3, the screw rod 3 is provided with a connecting seat 1, the connecting seat 1 is fixed on the upper surface of the screw rod 3 through two elastic washers 4 and a nut 5, the position of the connecting seat 1 on the screw rod 3 can be adjusted, so that the highest point of the current collecting rod can be adjusted.

[0021] The top of the connecting seat 1 is provided with a through hole 13, and the horizontal cylinder is connected through the pin shaft; in this way, the end of the connecting seat 1 is connected with the horizontal cylinder through the pin shaft and can rotate around the end of the horizontal cylinder.

[0022] Further, since the connecting component in the connecting assembly and the elbow pipe are metal components, the addition of the damping pad 2 can avoid the direct contact between the metal components and the falling of the coating on the elbow pipe, thereby avoiding the rust phenomenon and reducing the service life.

[0023] Further, the elbow 8 is provided with a wear-resistant copper sleeve 12, and the elbow 8 is connected with the lower fork arm of the current collecting rod through the pin shaft and can rotate around a fixed point on the lower fork arm of the current collecting rod.

[0024] Further, the screw rod 3 can be screwed into the elbow 8, and the elastic pin 7 is used for strengthening fixation; the axial direction of the installed screw rod is parallel to the axial direction of the pipe of the lower fork arm, and the deformation of the screw rod during work can be avoided.

[0025] Further, the connecting seat 1 is provided with a clamp 9, and the clamp 9 is fixed on the connecting seat 1 through the lock washer 10 and the lock nut 11; the clamp 9, the lock washer 10 and the lock nut 11 can fix the mechanism and the elbow pipe of the lower fork arm together in the case that the function is not needed, and the stability of the overall structure is improved.

[0026] The working principle of the utility model is as follows:

[0027] Firstly, the whole mechanism does not have relative motion relative to the lower fork arm assembly, the damping pad 2 is always in contact with the elbow pipe of the lower fork arm under the action of the spring force, and the overall structure is relatively stable due to the large contact area.

[0028] When the carbon brush of the collector head is worn, the collector head is pulled by the nylon pull rope in the current collection system, so that the collector head rotates downward with the rotation of the lower fork arm, and when the collector head reaches a certain height, the length of the horizontal cylinder cannot be changed, at this time the height of the collector head cannot be changed; the convenient carbon brush replacement collector head structure starts to work; one end of the structure is hinged with the lower fork arm of the current collection system through a pin shaft, and the other end is hinged with the horizontal cylinder of the current collection system through a pin shaft; continue to pull the collector head with the nylon pull rope, the lower fork arm continues to rotate to drive the mechanism to rotate, and at the same time the other end of the mechanism drives the horizontal cylinder to slightly rotate; the height of the carbon brush of the collector head can be reduced to about 1.7m, and the carbon brush can be conveniently replaced, after the replacement of the carbon brush is completed, the nylon pull rope is manually released, and the collector head returns to the original position under the action of the tension spring.

[0029] In the above process, when the length of the horizontal cylinder is elongated to the maximum, the height of the carbon brush of the collector head can be lowered by manually pulling the nylon pull rope. At this time, the lower fork arm can be pulled down by manually pulling the nylon rope connected with the collector head to overcome the spring resistance; at this time, the shock pad 2 on the connecting assembly is separated from the elbow pipe of the lower fork arm; the carbon brush is replaced; after the replacement of the carbon brush is completed, the nylon pull rope is manually released; at this time, the lower fork arm is raised under the action of the spring force, and the shock pad 2 recontacts with the elbow pipe of the lower fork arm.

[0030] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the overall concept of the present application, some changes and improvements can be made, which should also be considered as the protection range of the present application.

Claims

1. A portable carbon brush replacement structure for a current collection system, characterized in that: Includes an elbow (8) connected to the lower fork arm of the current collector pole, and the other end of the elbow (8) is connected to a screw (3), and a connecting seat (1) is provided on the screw (3); A through hole (13) is provided at the top of the connecting seat (1), and the through hole (13) is connected to the horizontal cylinder through a pin; a shock-absorbing pad (2) is provided below the connecting seat (1), and the lower end surface of the shock-absorbing pad (2) is an arc surface, which matches the shape of the upper bend of the lower fork arm.

2. The portable carbon brush replacement structure for a current collection system according to claim 1, characterized in that: The connecting seat (1) is fixed to the screw (3) by two elastic washers (4) and a nut (5).

3. The portable carbon brush replacement structure for a current collection system according to claim 1, characterized in that: A wear-resistant copper sleeve (12) is installed on the elbow (8).

4. The portable carbon brush replacement structure for a current collection system according to claim 1, characterized in that: The screw (3) is fixed to the elbow (8) by a flexible pin (7).

5. The portable carbon brush replacement structure for a current collection system according to claim 1, characterized in that: A clamp (9) is provided below the connecting seat (1). The clamp (9) is fixed to the connecting seat (1) by anti-loosening washer (10) and anti-loosening nut (11).

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