A collector rod tail fixing device for a collector system

Abstract

A kind of current collecting system with current collecting rod tail fixing device, including base, both ends of base are equipped with a set of current collecting rod tail fixing device, current collecting rod tail fixing device includes limiting piece and hook, limiting piece is fixed on base, its limiting edge is inclined edge, the space between limiting piece and hook is locking space, translation cavity is provided in base, strip hole is opened in the upper cavity wall of translation cavity, the lower end of hook extends into translation cavity from strip hole.The technical effect of the present application is that, compared with the prior art, the power element of the present application is a linear cylinder, the movement of the hook is a linear motion, the cylinder has a length error of 1-2mm, the length error of the distal end of the hook is also 1-2mm, and there is no magnification effect, which reduces the position error of the hook and facilitates the hook to lock the current collecting rod.

Description

Technical Field

[0001] This invention relates to a current collector pole tail fixing device for a current collector system. Background Technology

[0002] Currently, the current collector system used in trolleybuses is a link between the trolleybus and the high-voltage cable. Its function is to convert and connect, that is, to convert the current in the high-voltage cable into the voltage and current values ​​required for the vehicle to drive through DC / DC voltage and current conversion, thereby driving the vehicle.

[0003] In the non-working state, the current collector pole is fixed by the fixing device at the tail of the current collector pole. See the rotating hook 4 in patent document CN217145655U or the locking hook 4 in patent document CN105235530A. The rotation of the rotating hook 4 or the locking hook 4 controls the switching between the free and constrained (locked) states of the current collector pole.

[0004] However, when entering the constraint, the current collector is 5 meters long and reaches the tail fixing device by means of a spring. When the current collector reaches the tail fixing device, the current collector does not immediately stabilize at the tail fixing device, but jumps / oscillates at the tail fixing device.

[0005] When the rotating hook 4 rotates, the rotating power component (such as the rotary cylinder 6) will have a slight arc error due to manufacturing precision and other reasons (the cylinder has a length error of only 1-2 mm). When this error extends to the outer end of the rotating hook 4, because the radius becomes larger at this time, there will be a distance difference of 10-30 mm between the "actual position of the rotating hook 4" and the "theoretical position of the rotating hook 4" (hereinafter referred to as the amplification effect), and the rotating hook will not be able to lock the current collector rod. Summary of the Invention

[0006] The technical problem to be solved by this invention is: how to design a current collector pole tail fixing device for a current collector system to avoid the amplification effect of the power component, so that the distance between the "actual position of the hook" and the "theoretical position of the hook" is only 1-2mm, thereby increasing the probability of the hook locking the current collector pole.

[0007] The specific technical solution of the present invention is as follows: A current collector pole tail fixing device for a current collector system includes a base, with a set of current collector pole tail fixing devices at both ends of the base. The current collector pole tail fixing device includes a limiting member and a hook. The limiting member is fixed on the base, and its limiting edge is a bevel. The space between the limiting member and the hook is a locking space. A translation cavity is provided inside the base. A strip hole is opened in the upper cavity wall of the translation cavity. The lower end of the hook extends into the translation cavity through the strip hole. The cylinder end of a cylinder is fixed inside the translation cavity. A connecting member is fixed to the piston end of the cylinder. The connecting member is fixed together with the lower end of the hook. The contact between the connecting member and the upper surface of the translation cavity is a surface contact, and the surface contact is an interference fit.

[0008] The connector is fixed to the lower end of the hook via a horizontal shaft, and a pulley is fixed to each end of the horizontal shaft. The pulleys are in contact with the lower surface of the translation cavity.

[0009] The lower end of the side wall of the translation cavity bends inward to form a U-shaped groove, which serves as the track for the pulley to slide.

[0010] Compared with the prior art, the technical advantages of the present invention are as follows: the power component of the present invention is a linear cylinder, the movement of the hook is linear, the cylinder has a length error of 1-2mm, and the length error of the far end of the hook is also 1-2mm, which will not have a magnification effect, reduce the position error of the hook, and facilitate the hook to lock the current collector rod. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of existing technology.

[0012] Figure 2 This is a schematic diagram of the present invention.

[0013] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0014] Figure 4 This is a cross-sectional view of the horizontal axis. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0016] like Figure 2-3 A current collector pole tail fixing device for a current collector system includes a base 20, which is used to install the present invention on the top of a trolleybus and also serves as a support frame for the movement of the hook 30.

[0017] Both ends of the base 20 are equipped with a set of collector pole tail fixing devices. The two sets of collector pole tail fixing devices have the same structure. For the sake of convenience, only the collector pole tail fixing device at the left end will be used as an example for explanation.

[0018] The tail fixing device of the current collector pole includes a limiting member 22 and a hook 30. The limiting member 22 is fixed on the base 20, and its limiting edge 221 is a bevel. The space between the limiting member 22 and the hook 30 is a locking space 301.

[0019] like Figure 3 The base 20 is provided with a translation cavity 25. The upper cavity wall of the translation cavity 25 is provided with a strip hole. The lower end 32 of the hook 30 extends into the translation cavity 25 through the strip hole. The cylinder end 41 of the cylinder 40 is fixed in the translation cavity 25. The piston end 43 of the cylinder 40 is fixed with a connecting piece 42. The connecting piece 42 is fixed together with the lower end 32 of the hook 30. The contact between the connecting piece 42 and the upper surface of the translation cavity 25 is a surface contact 421, and the surface contact is an interference fit.

[0020] like Figure 3-4 To reduce errors, the connector 42 is fixed to the lower end 32 of the hook 30 by a horizontal shaft 33. A pulley 34 is fixed to both ends of the horizontal shaft 33, and the pulley 34 is in contact with the lower surface of the translation cavity 25.

[0021] like Figure 4 To prevent swaying in the axial direction of the horizontal axis 33, the lower end of the side cavity wall 251 of the translation cavity 25 is bent inward to form a U-shaped groove 252, which is the track 253 for the sliding of the pulley 34.

[0022] Its working principle is as follows: During operation, when the current collector 90 needs to enter the locking space 301, the hook 30 is located at the far limit position (see...). Figure 2 (Left hook in the middle), after the collector rod 90 enters the locking space 301, the piston end 43 of the cylinder 40 retracts, driving the connecting piece 42, the horizontal shaft 33, the pulley 34 and the hook 30 to move to the right as a whole. When the hook 30 reaches the near-end limit position (see Figure 2 When the right hook is bent in the middle, the collector pole 90 is locked in the locking space 301.

[0023] If it is necessary to release the current collector 90, the piston end 43 of the cylinder 40 extends, causing the hook 30 to move from its near-end limit position (see...). Figure 2 The right hook in the middle reaches the distal limit position (see...). Figure 2 The left hook in the middle is sufficient, and I will not go into further detail.

[0024] Features of this invention: The power component of this invention is a linear cylinder, and the movement of the hook is linear. The cylinder has a length error of 1-2mm, the length error of the lower end of the hook is also 1-2mm, and the length error of the far end of the hook (hook end 31) is also 1-2mm. There will be no amplification effect, which reduces the position error of the hook and makes it easier for the hook to lock the current collector rod.

[0025] For other details, please refer to the existing technology.

[0026] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A current collector pole tail fixing device for a current collector system, comprising a base (20), wherein both ends of the base (20) are provided with a set of current collector pole tail fixing devices, the current collector pole tail fixing device comprising a limiting member (22) and a hook (30), the limiting member (22) being fixed on the base (20), its limiting edge (221) being a bevel, and the space between the limiting member (22) and the hook (30) being a locking space (301), characterized in that: The base (20) is provided with a translation cavity (25). A strip hole is opened in the upper cavity wall of the translation cavity (25). The lower end (32) of the hook (30) extends into the translation cavity (25) through the strip hole. The cylinder end (41) of the cylinder (40) is fixed in the translation cavity (25). The piston end (43) of the cylinder (40) is fixed with the connecting piece (42). The connecting piece (42) is fixed together with the lower end (32) of the hook (30). The contact between the connecting piece (42) and the upper surface of the translation cavity (25) is a surface contact, and the surface contact is an interference fit.

2. The current collector pole tail fixing device for a current collector system as described in claim 1, characterized in that: The connector (42) is fixed to the lower end (32) of the hook (30) by a horizontal shaft (33), and a pulley (34) is fixed to both ends of the horizontal shaft (33). The pulley (34) is in contact with the lower surface of the translation cavity (25).

3. The current collector pole tail fixing device for a current collector system as described in claim 2, characterized in that: The lower end of the side wall (251) of the translation cavity (25) bends inward to form a U-shaped groove (252), which is the track for the pulley (34) to slide.

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