CN113085670A - Automatic grounding device for movable contact suspension of loading and unloading line - Google Patents

Abstract

The application discloses automatic earthing device that loading and unloading line mobile contact hung relates to contact net technical field for it is time-consuming, the technical problem who takes a lot of work to solve the manual work and hang both ends to the mobile contact and articulate the earth connection. The device comprises a grounding component, a movable supporting component and a vertical rod; the bottom of the upright is grounded; the movable supporting component is connected with the top of the vertical rod and clamps the contact lead, and the movable supporting component can drive the contact lead to extend out or retract towards the direction of the loading and unloading line; the grounding assembly is connected to the movable supporting assembly, and when the movable supporting assembly is retracted, the clamped contact lead and the connected conductor can be in contact with the grounding assembly. This device sets up ground component on removing the supporting component, when removing the direction of supporting component centre gripping contact wire to loading and unloading line and withdrawing, the conductor of contact wire and connection can contact with ground component, and the high-voltage induced electricity on the contact wire passes through ground component, removal supporting component and pole setting direction ground, realizes safe and reliable's contact wire automatic grounding.

Description

Automatic grounding device for movable contact suspension of loading and unloading line

Technical Field

The application relates to the technical field of contact networks, in particular to an automatic grounding device for a mobile contact suspension of a loading and unloading line.

Background

At present, a train in a railway electrification traction section enters a cargo loading and unloading line and is basically finished by an internal combustion engine, and some loading and unloading lines realize electrification net hanging, but most of the loading and unloading lines are in a static suspension mode and affect the loading and unloading of cargos. If the loading and unloading line is adopted to move and contact the suspension device, the electric locomotive serving as the lead machine can be adopted for traction, the operation of replacing the locomotive is not needed, the labor intensity is reduced, the cost is saved, the safety risk of replacing the locomotive is reduced, and the loading and unloading efficiency is improved. Although the contact suspension at the upper end of the station track needing to be loaded and unloaded is removed, the contact suspension of other station tracks still has high voltage of 25KV, and induced electricity threatening personal safety exists on the removed contact suspension, so that the two ends of the station track need to be manually hung with grounding wires. This is time and labor consuming.

Disclosure of Invention

The embodiment of the application solves the technical problem that the moving contact suspension needs to be manually hung on the grounding wire in the prior art by providing the automatic grounding device for moving contact suspension of the loading and unloading line, and realizes the automatic grounding of the moving contact suspension.

The embodiment of the invention provides an automatic grounding device for a loading and unloading line moving contact suspension, which comprises a grounding component, a moving support component and a vertical rod, wherein the grounding component is arranged on the vertical rod; the bottom of the upright rod is connected with the ground and/or an overhead ground wire; the movable supporting component is connected with the top of the vertical rod and clamps the contact lead, and the movable supporting component can drive the contact lead and the connected conductor to extend or retract towards the direction of the loading and unloading line; the grounding assembly is connected to the movable supporting assembly, and when the movable supporting assembly is retracted, the clamped contact lead and the connected conductor can be in contact with the grounding assembly.

In one possible implementation manner, the grounding assembly comprises a fixed frame, a grounding contact and a pressure spring; the fixed frame is connected with the movable supporting component; the pressure spring is connected to the bottom of the fixing frame; the grounding contact is connected between the fixed frame and the pressure spring and can move up and down under the support of the pressure spring; when the movable supporting component is retracted, the clamped contact wire and the connected conductor can be contacted with the grounding contact.

In a possible implementation manner, an end of the ground contact, which is far away from the fixed frame, is bent towards the ground.

In one possible implementation, the mobile support assembly includes a four-bar linkage wrist arm and a mobile cart; the moving trolley is clamped on the upright stanchion and can move along the direction of the upright stanchion; one end of the four-connecting-rod wrist arm is connected to the top of the upright rod, and the other end of the four-connecting-rod wrist arm is connected to the movable trolley, and the movable trolley moves along the direction of the upright rod to drive the four-connecting-rod wrist arm to fold or extend; the bottom end of the four-bar linkage wrist arm clamps the contact wire.

In one possible implementation, the four-bar linkage wrist arm includes a flat wrist arm, a support wrist arm, and a connecting wrist arm; the two flat wrist arms are provided, one ends of the two flat wrist arms are connected to the movable trolley, and the other ends of the two flat wrist arms are connected to the middle part of the connecting wrist arm; one end of the supporting wrist arm is connected to the top of the upright rod, and the other end of the supporting wrist arm is connected with the middle part of the flat wrist arm; the connecting cantilever is vertically arranged, and the bottom of the connecting cantilever is connected with a contact wire.

In a possible implementation manner, the grounding component, the movable supporting component and the vertical rod are made of metal materials.

In a possible implementation manner, when the movable supporting component extends to a direction close to the loading and unloading line, the distance from the tail end of the grounding component far away from the movable supporting component to a pantograph of the electric locomotive is more than 300 mm.

In a possible implementation manner, the flat cantilever is rotatably connected with the moving trolley, the connecting cantilever and the supporting cantilever, and the connecting cantilever is kept vertical all the time during the extension and contraction of the flat cantilever and the supporting cantilever.

In a possible implementation, the support wrist is connected to the upright by a hinge.

In a possible implementation manner, the ground wire is buried underground and connected with the upright rod.

One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

according to the embodiment of the invention, the grounding assembly is arranged on the movable supporting assembly, when the movable supporting assembly clamps the contact lead and the connected conductor is retracted towards the direction of the loading and unloading line, the contact lead and the connected conductor can be contacted with the grounding assembly, and high-voltage induced electricity on the contact lead is guided to the ground through the grounding assembly, the movable supporting assembly and the upright rod, so that the technical problem that two ends of the contact lead need to be manually hung and grounded during the operation of loading and unloading the line is effectively solved, and the safe and reliable automatic grounding of the contact lead and the connected conductor is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an automatic grounding device according to an embodiment of the present disclosure;

fig. 2 is an enlarged view of a partial structure of an automatic grounding device provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a grounding assembly according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of the automatic grounding device provided by the embodiment of the present application when the automatic grounding device is extended;

fig. 5 is a schematic structural diagram of the automatic grounding device according to the embodiment of the present application when retracted.

Reference numerals: 1-a ground component; 2-moving the support assembly; 3-erecting a rod; 4-contact wires; 11-a fixing frame; 12-a ground contact; 13-pressure spring; 21-a four-bar linkage wrist; 22-moving the trolley; 211-flat wrist arm; 212-support wrist; 213-connecting the wrist; 5-pantograph.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

The present embodiment provides an automatic grounding device for mobile contact suspension of loading and unloading lines, and please refer to fig. 1 to 5 in the drawings of the specification.

Referring to fig. 1, the automatic grounding device for moving contact suspension of a loading and unloading line comprises a grounding component 1, a moving support component 2 and a vertical rod 3; the bottom of the upright rod 3 is connected with the ground and/or an overhead ground wire; the movable supporting component 2 is connected with the top of the upright rod 3 and clamps the contact lead 4, and the movable supporting component 2 can drive the contact lead 4 and the connected conductor to extend out or retract towards the direction of the loading and unloading line; the grounding assembly 1 is connected to the movable supporting assembly 2, and when the movable supporting assembly 2 is retracted, the clamped contact wire 4 and the connected conductor can be in contact with the grounding assembly 1.

According to the embodiment of the invention, the grounding component 1 is arranged on the movable supporting component 2, when the movable supporting component 2 clamps the contact wire 4 and the connected conductor is retracted towards the direction of the loading and unloading wire, the contact wire 4 and the connected conductor can be contacted with the grounding component 1, and high-voltage induced electricity on the contact wire 4 is guided to the ground through the grounding component 1, the movable supporting component 2 and the upright rod 3, so that the technical problem that two ends of the contact wire 4 need to be manually hung and grounded during the operation of loading and unloading wires is effectively solved, and the safe and reliable automatic grounding of the contact wire 4 and the connected conductor is further realized.

Referring to fig. 2 and 3, the grounding assembly 1 includes a fixed frame 11, a grounding contact 12 and a compression spring 13; the fixed frame 11 is connected with the movable supporting component 2; the pressure spring 13 is connected to the bottom of the fixed frame 11; the grounding contact 12 is connected between the fixed frame 11 and the compression spring 13 and can move up and down under the support of the compression spring 13; when the movable support member 2 is retracted, the held contact wire 4 can be brought into contact with the ground contact 12.

The fixing frame 11 comprises two side plates and a connecting plate, the two side plates are connected with the movable supporting component 2, and the connecting plate is connected between the two side plates. The ground contact 12 is arranged below the connecting plate, the pressure spring 13 is sleeved on the screw rod, and the screw rod penetrates through the ground contact 12 and is fixed on the connecting plate. The compression spring 13 abuts against the bottom surface of the ground contact 12, supporting the ground contact 12. Meanwhile, when the ground contact 12 receives a downward pressure, the compression spring 13 can support the ground contact 12.

As shown in fig. 2, the end of the ground contact 12 away from the fixed frame 11 is bent toward the ground.

When the electric locomotive runs in place and needs to be loaded and unloaded, the supporting assembly 2 needs to be moved to withdraw, the electric locomotive is powered off, and meanwhile, the upper part of the electric locomotive is emptied, so that the operation is convenient. The movable supporting component 2 clamps the contact wire 4 and the connected conductor to be retracted, and after the movable supporting component moves in place, the contact wire 4 can be in contact with the grounding component 1 arranged on the movable supporting component 2, specifically, the grounding contact 12 and the fixed frame 11 sequentially pass through the grounding contact 12, the fixed frame 11, the movable supporting component 2 and the vertical rod 3, so that high-voltage induced electricity is guided to the ground.

The one end that is kept away from mount 11 of ground contact 12 is crooked to the ground direction to the in-process that the contact wire 4 that makes removal supporting component 2 centre gripping and the conductor of connection are withdrawed, can be smooth contact with ground contact 12, the setting of pressure spring 13 can ensure when the height of contact wire 4 and the conductor of connection has slight change, still can closely laminate with ground contact 12.

Referring to fig. 1, the mobile support assembly 2 comprises a four-bar linkage wrist arm 21 and a mobile cart 22; the movable trolley 22 is clamped on the upright stanchion 3 and can move along the direction of the upright stanchion 3; one end of the four-bar linkage wrist arm 21 is connected to the top of the upright 3, and the other end is connected to the movable trolley 22, and the movable trolley 22 can move along the direction of the upright 3 to drive the four-bar linkage wrist arm 21 to fold or extend; the bottom end of the four-bar linkage wrist arm 21 holds the contact wire 4.

The mobile cart 22 is driven by a power assembly, which may be implemented in one form including a motor, a drive pulley, a driven pulley, and a chain. The motor and the driving wheel are arranged at the top of the vertical rod 3, and the motor drives the driving wheel to rotate. The driven wheel is arranged in the direction of the vertical rod 3 far away from the top. The chain is wound with a driving wheel and a driven wheel and is connected with the movable trolley 22. The motor drives the driving wheel to rotate, the driven wheel supports the chain to move, and the chain further drives the movable trolley 22 to move up and down along the vertical rod 3. The movable trolley 22 has a self-locking function, and when the movable trolley 22 moves in place, self-locking can be performed, so that the stability of the device is guaranteed.

With continued reference to FIG. 1, the four-bar linkage wrist arm 21 includes a flat wrist arm 211, a support wrist arm 212, and a connecting wrist arm 213; the two flat wrists 211 are provided, one end of each flat wrists 211 is connected with the movable trolley 22, and the other end of each flat wrists 211 is connected with the middle part of the connecting wrists 213; one end of the supporting wrist arm 212 is connected to the top of the upright rod 3, and the other end is connected with the middle part of a flat wrist arm 211; the connecting arm 213 is vertically arranged, and the bottom of the connecting arm 213 is connected with the contact wire 4. The flat cantilever 211 is rotatably connected with the movable trolley 22, the connecting cantilever 213 and the supporting cantilever 212, and the connecting cantilever 213 is always kept vertical in the process of extending and retracting the flat cantilever 211 and the supporting cantilever 212. The support wrist 212 is connected to the upright 3 by a hinge.

The flat arm 211 is rotatably connected to the cart 22, the connecting arm 213, and the support arm 212, i.e., can rotate about the connecting portion. When the mobile cart 22 moves upward, the flat cantilever 211 is gradually flat, and the support cantilever 212 extends out in a direction away from the upright 3 by rotating clockwise around the axis with the hinge at the connection part with the upright 3, so as to drive the connection cantilever 213 to extend out in a direction away from the upright 3. The connecting wrist 213 is always kept upright. Similarly, when the mobile cart 22 moves downward, the flat cantilever 211 is gradually vertical, the supporting cantilever 212 is retracted toward the upright 3 by the hinge at the connection part with the upright 3 rotating counterclockwise, and then the connecting cantilever 213 is retracted toward the upright 3.

Referring to fig. 4, the movable supporting component 2 is in an extended state, the contact wire 4 of the loading and unloading line connected with the movable supporting component 2 is in a direction close to the electric locomotive, and the contact wire 4 can supply power to the electric locomotive to drive the electric locomotive into or out of the loading and unloading line;

referring to fig. 5, the movable supporting member 2 is in a retracted state, and the contact wire 4 of the loading and unloading wire connected to the movable supporting member 2 is in a direction away from the electric vehicle, so that the loading and unloading work can be performed. When the movable supporting component 2 is retracted to the proper position, the folded movable supporting component 2 holds the contact wire 4 to contact with the grounding component 1 disposed on the flat cantilever 211. Automatic grounding of the automatic contact wires 4 and the connected conductors is achieved.

The grounding component 1, the movable supporting component 2 and the upright rod 3 are all made of metal materials. The ground wire is buried underground and connected with the upright rod 3.

To achieve grounding, the device must be made of a material that is capable of conducting electricity, and therefore, the grounding component 1, the movable supporting component 2 and the vertical rod 3 are made of metal. Meanwhile, the upright rod 3 is connected with a grounding ground wire and/or an overhead ground wire which are buried underground, so that the grounding safety and reliability of the device are guaranteed.

In another embodiment, the upright 3 is formed by pouring cement, and a metal ground wire needs to be arranged along the direction of the upright 3 and connected with an underground ground wire and/or an overhead ground wire, as long as the ground assembly 1 can be connected with the ground or the overhead ground wire.

Referring to fig. 4, when the movable supporting member 2 is extended in a direction approaching the loading and unloading line, the distance from the end of the grounding member 1 far from the movable supporting member 2 to the pantograph 5 of the electric locomotive is greater than 300 mm.

According to the relevant regulations, the minimum air gap of the live body from the grounding body is guaranteed to be 300mm, while when the mobile support assembly 2 is extended, the minimum distance of the grounding contact 12 from the pantograph 5 is 477mm, meeting the relevant requirements.

The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.

Claims (10)

1. The automatic grounding device for the movable contact suspension of the loading and unloading line is characterized by comprising a grounding component (1), a movable supporting component (2) and an upright rod (3);

the bottom of the upright rod (3) is connected with the ground and/or an overhead ground wire;

the movable supporting component (2) is connected with the top of the upright rod (3) and clamps the contact lead (4), and the movable supporting component (2) can drive the contact lead (4) to extend out or retract towards the direction of the loading and unloading line;

the grounding component (1) is connected to the movable supporting component (2), and when the movable supporting component (2) is retracted, the clamped contact wire (4) and the connected conductor can be in contact with the grounding component (1).

2. A loading and unloading line moving contact suspended robot grounding device according to claim 1, characterized in that the grounding assembly (1) comprises a fixed frame (11), a grounding contact (12) and a compression spring (13);

the fixed frame (11) is connected to the movable supporting component (2);

the pressure spring (13) is connected to the bottom of the fixed frame (11);

the grounding contact (12) is connected between the fixed frame (11) and the pressure spring (13) and can move up and down under the support of the pressure spring (13);

when the movable supporting component (2) is retracted, the clamped contact wire (4) and the connected conductor can be contacted with the grounding contact (12).

3. A loading and unloading line moving contact suspended automatic grounding device according to claim 2, characterized in that the end of the grounding contact (12) far from the fixed frame (11) is bent towards the ground.

4. Handling line moving contact suspended robot grounding device according to claim 1, characterized in that the moving support assembly (2) comprises a four-bar linkage wrist (21) and a travelling car (22);

the movable trolley (22) is clamped on the upright stanchion (3) and can move along the direction of the upright stanchion (3);

one end of the four-bar linkage wrist arm (21) is connected to the top of the upright rod (3), and the other end of the four-bar linkage wrist arm is connected to the movable trolley (22), and the movable trolley (22) can move along the direction of the upright rod (3) to drive the four-bar linkage wrist arm (21) to fold or extend;

the bottom end of the four-bar linkage wrist arm (21) clamps the contact wire (4).

5. The load handling line moving contact suspended automatic grounding device according to claim 4, characterized in that said four-bar linkage wrist (21) comprises a flat wrist (211), a support wrist (212) and a connecting wrist (213);

the two flat wrist arms (211) are provided, one ends of the two flat wrist arms (211) are connected to the movable trolley (22), and the other ends of the two flat wrist arms are connected to the middle part of the connecting wrist arm (213);

one end of the support wrist arm (212) is connected to the top of the upright rod (3), and the other end of the support wrist arm is connected with the middle part of the flat wrist arm (211);

the connecting wrist arm (213) is vertically arranged, and the bottom of the connecting wrist arm (213) is connected with a contact wire (4).

6. A loading and unloading line mobile contact suspended automatic grounding device according to claim 1, characterized in that the grounding assembly (1), the mobile support assembly (2) and the vertical rod (3) are all made of metal.

7. A loading and unloading line moving contact suspended robot grounding device according to claim 1, characterized in that the distance of the end of the grounding assembly (1) remote from the moving support assembly (2) from the pantograph (5) of the electric locomotive is more than 300mm when the moving support assembly (2) is extended in the direction of approaching the loading and unloading line.

8. The load handling line mobile contact suspended automatic ground engaging apparatus of claim 5, wherein said flat cantilever (211) is rotatably connected to said mobile cart (22), said connecting cantilever (213) and said support cantilever (212), said connecting cantilever (213) remaining vertical throughout the extension and retraction of said flat cantilever (211) and said support cantilever (212).

9. Handling line moving contact suspended robot grounding device according to claim 5, characterized in that the support wrist (212) is hinged to the upright (3).

10. A loading and unloading line moving contact suspended automatic grounding device according to claim 1, characterized by further comprising a grounding ground wire buried underground and connected to said upright (3).

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