Catenary height adjusting device

Abstract

The utility model provides a contact network height adjusting device which comprises a supporting column, the top of the supporting column is fixedly connected with a horizontally-arranged flat cantilever, an inclined cantilever is arranged between the flat cantilever and the supporting column, one end of the inclined cantilever is fixedly connected with the front end of the flat cantilever, and the other end of the inclined cantilever is fixedly connected to the middle of the supporting column. The inclined cantilever, the flat cantilever and the supporting column form a right triangle, the inclined cantilever is connected with the flat cantilever through a first double-lug sleeve, a supporting rod is arranged between the inclined cantilever and the flat cantilever, and the supporting rod is arranged in the middle of the inclined cantilever and is perpendicular to the inclined cantilever. The height guide adjuster is additionally arranged between the flat cantilever and the inclined cantilever, when the height of the contact network is adjusted, the height of the contact network can be adjusted only by operating a rocker of a ratchet mechanism of the height guide adjuster, the adjustment is accurate, the efficiency is high, and the operation safety performance is high.

Description

Technical Field

[0001] The utility model relates to the technical field of catenary adjustment, and particularly relates to a catenary height adjustment device. Background Technique

[0002] When the track maintenance department conducts construction such as track screening, sleeper replacement, and rail replacement on the line, the railway rail is lifted or lowered, resulting in a change in the distance between the rail and the catenary, that is, a change in the catenary height. This will cause the catenary height not to meet the design standard, affect the current collection quality of the electric locomotive, not meet the operating conditions, and even an excessive catenary height will cause the pantograph of the locomotive to be disengaged, and an insufficient catenary height will cause faults such as the pantograph of the locomotive colliding with and scraping the catenary.

[0003] Therefore, the catenary is an important part of the electrified railway, and the adjustment of its height is crucial for the safety and smoothness of railway transportation.

[0004] The adjustment of the catenary height must be correct. Excessive or insufficient height will affect the safety and smoothness of railway transportation. Before adjustment, it is necessary to carefully measure and evaluate to ensure that the adjusted height is within the specified range.

[0005] The purpose of adjusting the height of the catenary conductor is to make the position of the contact wire and the track plane meet the specified requirements, so that the contact wire makes good contact with the pantograph in operation, so as to achieve the purpose of ensuring the current collection quality.

[0006] At present, the commonly used catenary height adjustment method in on-site operations generally uses a work vehicle and manual pole climbing to adjust the height of the suspension point of the catenary by adjusting the elevation angle of the horizontal wrist arm. This adjustment method requires crossing the insulator back and forth, and there are risks of stepping empty and falling injuries as well as induced electric shock injuries. And the adjustment efficiency is low. Content of the Utility Model

[0007] In order to solve the above technical problems, the present application provides a catenary height adjustment device, and the utility model is realized through the following technical solutions:

[0008] A catenary height adjustment device includes a pillar, a horizontally arranged horizontal wrist arm is fixedly connected to the top of the pillar, an inclined wrist arm is arranged between the horizontal wrist arm and the pillar, one end of the inclined wrist arm is fixedly connected to the front end of the horizontal wrist arm, and the other end is fixedly connected to the middle of the pillar. A right triangle is formed among the inclined wrist arm, the horizontal wrist arm and the pillar. The inclined wrist arm is connected to the horizontal wrist arm through a double-ear sleeve. A support rod is arranged between the inclined wrist arm and the horizontal wrist arm, and the support rod is arranged in the middle of the inclined wrist arm and is perpendicular to the inclined wrist arm.

[0009] A height adjustment device is provided between the front end of the flat cross arm and the front end of the inclined cross arm. The height adjustment device includes an internally threaded sleeve, and a ratchet mechanism is provided in the middle of the internally threaded sleeve. The ratchet mechanism includes a rocker. Each end of the internally threaded sleeve is threadedly connected with a screw rod, and each screw rod is fixedly connected with a sleeve double ear two. One of the sleeve double ears two is connected to the flat cross arm, and the other sleeve double ear two is connected to the inclined cross arm.

[0010] As a preferred solution, both the sleeve double ear one and the sleeve double ear two each include two oppositely arranged arc-shaped ear plates. Both ends of the ear plates are respectively connected with a connecting plate. After the two arc-shaped ear plates are buckled together, a circular hole is formed, and the corresponding connecting plates are fixedly connected by bolts.

[0011] As a preferred solution, the ratchet mechanism is a two-way ratchet mechanism, and a reversing valve is provided thereon.

[0012] As a preferred solution, the material of the internally threaded sleeve is steel.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model installs a height adjustment device between the flat cross arm and the inclined cross arm. When adjusting the height of the catenary, only by operating the rocker of the ratchet mechanism of the height adjustment device, the height adjustment of the catenary can be realized, with precise adjustment, high efficiency, and high operating safety performance. Description of the Drawings

[0014] The following further describes the present utility model in detail in conjunction with the drawings and the specific embodiments:

[0015] Figure 1 is the front view structural schematic diagram of the present utility model;

[0016] Figure 2 is the front view structural schematic diagram of the height adjustment device of the present utility model;

[0017] Figure 3 is the three-dimensional structural schematic diagram of the sleeve double ear one and the sleeve double ear two of the present utility model. Specific Embodiments

[0018] The following further describes the present utility model in detail in conjunction with the drawings and the specific embodiments:

[0019] An OCS height adjustment device includes a pillar 1. A horizontally arranged flat wrist arm 2 is fixedly connected to the top of the pillar 1. An inclined wrist arm 3 is arranged between the flat wrist arm 2 and the pillar 1. One end of the inclined wrist arm 3 is fixedly connected to the front end of the flat wrist arm 2, and the other end is fixedly connected to the middle of the pillar 1. A right triangle is formed among the inclined wrist arm 3, the flat wrist arm 2 and the pillar 1. The inclined wrist arm 3 is connected to the flat wrist arm 2 through a double-ear sleeve 4. A support rod 5 is arranged between the inclined wrist arm 3 and the flat wrist arm 2. The support rod 5 is arranged in the middle of the inclined wrist arm 3 and is perpendicular to the inclined wrist arm 3.

[0020] A guide height adjuster 6 is arranged between the front end of the flat wrist arm 2 and the front end of the inclined wrist arm 3. The guide height adjuster 6 includes an internally threaded sleeve 61. A ratchet mechanism 62 is arranged in the middle of the internally threaded sleeve 61. The ratchet mechanism 62 includes a rocker 63. Two screw rods 64 are threadedly connected to both ends of the internally threaded sleeve 61 respectively. Each screw rod 64 is fixedly connected to a double-ear sleeve 65 for the sleeve. One double-ear sleeve 65 for the sleeve is connected to the flat wrist arm 2, and the other double-ear sleeve 65 for the sleeve is connected to the inclined wrist arm 3.

[0021] Further, both the double-ear sleeve 4 for the sleeve and the double-ear sleeve 65 for the sleeve include two oppositely arranged arc-shaped ear plates 7. Both ends of the ear plate 7 are respectively connected to a connecting plate 8. After the two arc-shaped ear plates 8 are buckled together, a circular hole 9 is formed. The corresponding connecting plates 8 are fixedly connected through bolts 10.

[0022] Further, the ratchet mechanism 62 is a two-way ratchet mechanism, and a reversing valve 66 is arranged thereon.

[0023] Further, the material of the internally threaded sleeve 61 is steel.

[0024] When the OCS height adjustment device is in use, first loosen the bolt 10 of the double-ear sleeve 4 for the sleeve to relieve the force between the flat wrist arm 2 and the inclined wrist arm 3. Rock the rocker 63 of the guide height adjuster 6 to make the ratchet mechanism 62 drive the threaded sleeve 61 to rotate. The length of the screw rod 64 extending out of the threaded sleeve 61 becomes longer, and the length of the whole height adjustment device becomes longer, pushing the flat wrist arm 2 upward to realize the adjustment of the height of the flat wrist arm 2 to adapt to the operation of different trains.

[0025] When it is necessary to lower the OCS height, operate the reversing valve of the ratchet mechanism 62, and then operate the rocker 63 to make the ratchet mechanism 62 drive the threaded sleeve 61 to reverse, so that the bolt 10 is screwed into the threaded sleeve 61. The length of the whole height adjustment device becomes shorter, and at the same time drives the flat wrist arm 2 to fall. When it falls to the required height, lock the bolt 10 of the double-ear sleeve 4 for the sleeve.

[0026] The specific implementation of the present utility model has been described in detail above. However, it is only an example, and the present utility model is not limited to the specific implementation cases described above. Equivalent modifications made to the present utility model are also within the protection scope of the present utility model.

Claims

1. A contact network height adjustment device, comprising a support (1), characterized in that: The top of the support (1) is fixedly connected to a horizontally arranged flat wrist arm (2), an oblique wrist arm (3) is arranged between the flat wrist arm (2) and the support (1), one end of the oblique wrist arm (3) is fixedly connected to the front end of the flat wrist arm (2), and the other end is fixedly connected to the middle of the support (1), a right-angled triangle is formed between the oblique wrist arm (3), the flat wrist arm (2) and the support (1), the oblique wrist arm (3) is connected to the flat wrist arm (2) through a double-ear sleeve (4), a support rod (5) is arranged between the oblique wrist arm (3) and the flat wrist arm (2), and the support rod (5) is arranged in the middle of the oblique wrist arm (3) and is arranged perpendicular to the oblique wrist arm (3); A height guide adjuster (6) is provided between the front end of the flat wrist arm (2) and the front end of the oblique wrist arm (3), the height guide adjuster (6) comprising an internal threaded sleeve (61), a ratchet mechanism (62) being provided at the middle of the internal threaded sleeve (61), the ratchet mechanism (62) comprising a rocker (63), two ends of the internal threaded sleeve (61) are respectively threadedly connected to a screw rod (64), each of the screw rods (64) is fixedly connected to a sleeve double ear (65), one of the sleeve double ear (65) is connected to the flat wrist arm (2), and the other sleeve double ear (65) is connected to the oblique wrist arm (3).

2. The overhead contact network height adjustment device according to claim 1, characterized in that: The two-ear sleeve one (4) and the sleeve two-ear two (65) both comprise two arc-shaped ear plates (7) arranged opposite to each other, and the two ends of the ear plates (7) are respectively connected to a connecting plate (8). The two arc-shaped ear plates (7) are buckled together to form a circular hole (9), and the corresponding connecting plates (8) are fixedly connected by bolts (10).

3. The overhead contact network height adjustment device according to claim 1, characterized in that: The ratchet mechanism (62) is a bidirectional ratchet mechanism, on which a reversing valve (66) is provided.

4. The overhead contact network height adjustment device according to claim 1, characterized in that: The internally threaded sleeve (61) is made of steel.

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