Train overhead line system tension adjusting mechanism

Abstract

The utility model discloses a train overhead line system tension adjusting mechanism, which belongs to the technical field of train overhead line systems, and is characterized by comprising a supporting stand column, a support is bolted to the top of the surface of the supporting stand column, and a pulley compensation structure is bolted to the right side of the support. The problems that according to an existing conventional gravity type tension adjusting mechanism for the train overhead line system, tension of a cable is kept balanced by mainly utilizing ascending or descending of a balance weight and depending on the gravity of the balance weight, so that the sag of the overhead line system is kept in a normal state, however, the balance weight is arranged in a suspended mode, and the tension of the cable cannot be adjusted easily are solved. The problems that in the prior art, due to the fact that the balance weight is limited by a certain environment (such as in a strong wind area), the balance weight swings by a certain amplitude, although a limiting rod-shaped structure is conventionally arranged, the connection mode of the balance weight and the limiting rod-shaped structure is simple, the swing amplitude of the balance weight cannot be completely eliminated, the stability of the overhead line system is easily reduced, and use of the train overhead line system is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of train contact networks, in particular to a tension regulating mechanism for a train contact network. Background Art

[0002] The train catenary is a special transmission line erected above the railway line in an electrified railway to supply power to electric locomotives. The catenary is an important component of the electrified railway, and its working condition directly affects the operating safety and efficiency of the electric locomotive.

[0003] In electrified railways, the contact network is a key facility for providing electric energy to electric locomotives. In order to ensure the stability and elasticity of the contact network, especially when the temperature changes, the wire will stretch or shorten due to thermal expansion and contraction. Therefore, a gravity-type tension adjustment mechanism is used to self-adjust the wire of the contact network. However, the existing conventional gravity-type tension adjustment mechanism used for train contact networks mainly uses the weight to rise or fall, relying on its own gravity to keep the tension of the wire balanced, thereby ensuring that the slack of the contact network remains normal. However, since the weight is set in a suspended manner, it is subject to certain environmental restrictions (such as in strong wind areas), which will cause the weight to swing to a certain extent. Although a limited rod structure is conventionally provided, the connection method with the weight is relatively simple, and the swing amplitude of the weight cannot be completely eliminated, which can easily reduce the stability of the contact network and affect the use of the train contact network. Utility Model Content

[0004] The utility model provides a train contact network tension adjustment mechanism, which aims to solve the problem that the existing conventional gravity-type tension adjustment mechanism used for train contact networks mainly utilizes a weight to rise or fall, relying on its own gravity to keep the tension of the wire balanced, thereby ensuring that the slack of the contact network remains in a normal state. However, since the weight is set in a suspended manner, it is subject to certain environmental restrictions (such as in strong wind areas), which will cause the weight to swing to a certain extent. Although a limited rod-shaped structure is conventionally provided, the connection method with the weight is relatively simple, and the swing amplitude of the weight cannot be completely eliminated, thereby easily reducing the stability of the contact network and affecting the use of the train contact network.

[0005] The utility model is implemented as follows: a train contact network tension adjustment mechanism includes a support column, a bracket is bolted to the top of the support column surface, and a pulley compensation structure is bolted to the right side of the bracket, a steel cable is wound around the surface of the pulley compensation structure, and one end of the steel cable is bolted to a gravity tension adjustment component, and the gravity tension adjustment component is used in conjunction with the support column;

[0006] The gravity-type tension adjustment assembly includes two support plates, and guide pillars are bolted on both sides of the opposite sides of the two support plates, and a bearing plate is provided in the middle of the opposite sides of the two guide pillars. Limiting members are provided on both sides of the interior of the bearing plate, and the other ends of the limiting members are respectively sleeved on the surfaces of the two guide pillars. A sleeve rod is bolted on the top of the bearing plate, and a weight is sleeved on the surface of the sleeve rod. The top of the sleeve rod passes through the interior of the support plate and is connected to one end of the steel cable.

[0007] In order to limit the position of the load-bearing plate and the weight, buffer and offset the force, and reduce the swing amplitude, a preferred train contact network tension adjustment mechanism of the utility model is that the limit member includes two connecting blocks, and the side of the connecting block close to the load-bearing plate is rotatably connected to the load-bearing plate, and the connecting block on the other side is sleeved on the surface of the guide column, and the opposite sides of the two connecting blocks are bolted with guide rods, and a fixed cylinder is provided between the opposite sides of the two guide rods, and the side of the guide rod close to the fixed cylinder extends to the interior thereof and is bolted with a push plate, and a first return spring is connected between the opposite sides of the two push plates, and the opposite sides of the two push plates are filled with hydraulic oil.

[0008] In order to reduce the vibration between the connecting block and the guide column, as a preferred train contact network tension adjustment mechanism of the present invention, the surface of the guide column is slidably sleeved with a rubber sleeve, and the surface of the rubber sleeve is connected to the inner wall of the connecting block.

[0009] In order to facilitate the connection and installation of the sinker and the sleeve rod, as a preferred train contact network tension adjustment mechanism of the utility model, several sinkers are stacked and arranged on the top of the bearing plate, and an installation groove is opened on the rear side of the sinker, and several elastic protrusions are provided on both sides of the inner wall of the installation groove, and the elastic protrusion is in close contact with the sleeve rod on the side close to it.

[0010] In order to achieve the effect of limiting the use positions of several weights, as a preferred train contact network tension adjustment mechanism of the utility model, the top thread of the sleeve rod surface is connected with an internal threaded barrel, and the bottom of the internal threaded barrel is in close contact with the weight, and the surface of the sleeve rod is provided with a thread for use with the internal threaded barrel.

[0011] In order to achieve the effect of limiting the use position of the gravity-type tension adjustment component, as a preferred train contact network tension adjustment mechanism of the utility model, the top and bottom of the support column surface are both sleeved with clamps, and the front side of the clamp is bolted with a support plate, and the side of the support plate close to the support plate is respectively bolted to the support plate, and the top of the sleeve rod passes through the interior of the top support plate.

[0012] In order to further limit the moving trajectory of the load-bearing plate, as a preferred train contact network tension adjustment mechanism of the present invention, the top of the bottom support plate is bolted to a limiting rod, and the top of the limiting rod passes through the interior of the load-bearing plate and extends to the interior of the sleeve rod, the surface of the limiting rod is sleeved with a fixed sleeve, the surface of the fixed sleeve is annularly bolted with a damper, and the side of the damper away from the fixed sleeve is bolted to a limiting roller, the surface of the damper is provided with a second return spring, and the second return spring is connected to the two respectively on the side close to the fixed sleeve and the limiting roller.

[0013] In order to facilitate the connection between the limiting member and the supporting plate, as a preferred train contact network tension adjustment mechanism of the present invention, grooves are provided on both sides of the supporting plate, and the side of the limiting member close to the supporting plate is inside the groove and is rotatably connected thereto.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The train contact network tension adjustment mechanism, by setting a pulley compensation structure and a gravity-type tension adjustment component, can maintain the tension of the wire line in balance by relying on the gravity of the weight when it rises or falls, thereby ensuring that the sag of the contact network remains in a normal state. Through the coordinated use of the limiter and the guide column, the movement trajectory of the weight can be limited, thereby reducing the swing amplitude of the weight in a strong wind environment, thereby reducing the impact of the swing of the weight on the train contact network, and ensuring the stable usability and effect of the train contact network. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of the train contact network tension adjustment mechanism of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the gravity tension adjustment assembly in the present invention;

[0018] Figure 3 This is a schematic diagram of the connection between the position limiting member, the load-bearing plate and the guide column in the present invention;

[0019] Figure 4 It is a cross-sectional schematic diagram of the limiting member in the utility model;

[0020] Figure 5 This is a schematic diagram of the connection between the weight, sleeve rod and internal threaded barrel in the utility model;

[0021] Figure 6 This is a schematic diagram of the connection between the limiting rod and the sleeve rod in the utility model.

[0022] In the figure, 1. Support column; 2. Bracket; 3. Pulley compensation structure; 4. Steel cable; 5. Gravity tension adjustment assembly; 51. Support plate; 52. Guide column; 53. Load-bearing plate; 54. Limiting member; 541. Connecting block; 542. Guide rod; 543. Fixed cylinder; 544. Push plate; 545. First return spring; 55. Sleeve rod; 56. Weight; 6. Rubber sleeve; 7. Mounting groove; 8. Internally threaded cylinder; 9. Hoop; 10. Support plate; 11. Limiting rod; 12. Fixed sleeve; 13. Damper; 14. Limiting roller; 15. Second return spring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0025] See also Figure 1-6 The utility model provides a technical solution: a train contact network tension adjustment mechanism, comprising a support column 1, a bracket 2 is bolted to the top of the support column 1, and a pulley compensation structure 3 is bolted to the right side of the bracket 2, a steel cable 4 is wound around the surface of the pulley compensation structure 3, and a gravity tension adjustment component 5 is bolted to one end of the steel cable 4, and the gravity tension adjustment component 5 is used in conjunction with the support column 1;

[0026] The gravity-type tension adjustment assembly 5 includes two support plates 51, and guide columns 52 are bolted on both sides of the opposite sides of the two support plates 51. A bearing plate 53 is provided in the middle of the opposite sides of the two guide columns 52. Limiting members 54 are provided on both sides of the inside of the bearing plate 53. The other ends of the limiting members 54 are respectively sleeved on the surfaces of the two guide columns 52. A sleeve rod 55 is bolted to the top of the bearing plate 53, and a weight 56 ​​is sleeved on the surface of the sleeve rod 55. The top of the sleeve rod 55 passes through the interior of the support plate 51 and is connected to one end of the steel cable 4.

[0027] In this embodiment: by setting up the pulley compensation structure 3 and the gravity-type tension adjustment component 5, the tension of the wire can be kept balanced by relying on the gravity of the weight 56 ​​when it rises or falls, thereby ensuring that the sag of the contact network remains normal. By cooperating with the limiter 54 and the guide column 52, the moving trajectory of the weight 56 ​​can be limited, thereby reducing the swing amplitude of the weight 56 ​​in a strong wind environment, thereby reducing the impact of the swing of the weight 56 ​​on the train contact network, and ensuring the stable usability and effect of the train contact network.

[0028] As a technical optimization solution of the present invention, the limit member 54 includes two connecting blocks 541, and the side of the connecting block 541 close to the supporting plate 53 is rotatably connected to the supporting plate 53, and the connecting block 541 on the other side is sleeved with the surface of the guide column 52, and the two connecting blocks 541 are bolted to the opposite sides of the two connecting blocks 541 with guide rods 542, and a fixed cylinder 543 is provided between the opposite sides of the two guide rods 542, and the side of the guide rod 542 close to the fixed cylinder 543 extends to the interior thereof and is bolted to a push plate 544, and a first return spring 545 is connected between the opposite sides of the two push plates 544, and the space between the opposite sides of the two push plates 544 is filled with hydraulic oil.

[0029] In this embodiment: by setting a limiter 54, when the weight 56 ​​is affected by strong wind and moves, the guide rod 542 is subjected to force, so that the guide rod 542 moves inside the fixed tube 543 and pushes the push plate 544 to move, so that the first return spring 545 and the hydraulic oil in the two push plates 544 are forced to shrink, and can contact the elasticity of the first return spring 545 and the energy consumption in the compression process of the hydraulic oil, thereby offsetting and buffering the force on the weight 56, thereby playing the effect of limiting the weight 56 ​​and ensuring its stability.

[0030] As a technical optimization solution of the present invention, a rubber sleeve 6 is slidably sleeved on the surface of the guide post 52 , and the surface of the rubber sleeve 6 is connected to the inner wall of the connecting block 541 .

[0031] In this embodiment, the rubber sleeve 6 is provided to reduce the vibration between the connecting block 541 and the guide column 52 .

[0032] As a technical optimization solution of the present invention, several weights 56 are stacked and arranged on the top of the supporting plate 53, and a mounting groove 7 is opened on the rear side of the weight 56. Several elastic protrusions are provided on both sides of the inner wall of the mounting groove 7, and the elastic protrusions are in close contact with the side close to the sleeve rod 55.

[0033] In this embodiment, by arranging the installation groove 7 and the elastic protrusion, the effect of facilitating the connection and installation of the weight 56 ​​and the sleeve rod 55 can be achieved.

[0034] As a technical optimization solution of the present invention, the top thread of the sleeve rod 55 is connected to the internal threaded tube 8, and the bottom of the internal threaded tube 8 is in close contact with the weight 56. The surface of the sleeve rod 55 is provided with a thread for use with the internal threaded tube 8.

[0035] In this embodiment, by arranging the internal threaded tube 8 to cooperate with the thread of the sleeve rod 55, the internal threaded tube 8 can press the weight 56, thereby limiting the use position of the weight 56 ​​and enhancing the connection firmness between the weight 56 ​​and the sleeve rod 55.

[0036] As a technical optimization solution of the present invention, the top and bottom of the surface of the support column 1 are both sleeved with a clamp 9, and the front side of the clamp 9 is bolted with a support plate 10, and the side of the support plate 51 close to the support plate 10 is bolted to the support plate 10 respectively, and the top of the sleeve rod 55 passes through the interior of the top support plate 10.

[0037] In this embodiment, by providing the clamp 9 and the support plate 10 , the effect of limiting the use position of the gravity tension adjustment assembly 5 can be achieved.

[0038] As a technical optimization solution of the present invention, the top of the bottom support plate 51 is bolted to the limiting rod 11, and the top of the limiting rod 11 passes through the interior of the bearing plate 53 and extends to the interior of the sleeve rod 55. The surface of the limiting rod 11 is sleeved with a fixing sleeve 12, and the surface of the fixing sleeve 12 is annularly bolted with a damper 13, and the side of the damper 13 away from the fixing sleeve 12 is bolted to a limiting roller 14, and a second return spring 15 is provided on the surface of the damper 13, and the second return spring 15 is connected to the two respectively on the side close to the fixing sleeve 12 and the limiting roller 14.

[0039] In this embodiment: by setting the limit rod 11 and the limit roller 14, the moving trajectory of the sleeve rod 55 can be limited, and by setting the damper 13 and the second return spring 15, the swing of the sleeve can be further reduced, thereby further improving the use stability of the weight 56.

[0040] As a technical optimization solution of the present invention, grooves are provided on both sides of the interior of the carrier plate 53 , and the side of the limiting member 54 close to the carrier plate 53 is located inside the grooves and is rotatably connected thereto.

[0041] In this embodiment, the slots are provided to facilitate the connection between the limiting member 54 and the carrying plate 53 .

[0042] Working principle: Through the pulley compensation structure 3 and the gravity tension adjustment component 5, the weight 56 ​​can rise or fall on the guide column 52 by relying on its own gravity to keep the tension of the line balanced, thereby ensuring that the slack of the contact network remains normal. When the weight 56 ​​is affected by strong winds and moves, it forces the guide rod 542 to move inside the fixed cylinder 543 and pushes the push plate 544 to move, so that the first return spring 545 and the hydraulic oil in the two push plates 544 are forced to shrink, and can contact the elasticity of the first return spring 545 and the energy consumption during the compression process of the hydraulic oil, thereby offsetting and buffering the force on the weight 56 ​​to ensure its stability. When the bearing plate 53 moves, it will synchronously drive the sleeve rod 55 to move on the surface of the limit rod 11, so that the limit roller 14 reduces the friction between the two, and through the damper 13 and the second return spring 15, the swing of the sleeve rod 55 can be further reduced, thereby further improving the stability of the use of the weight 56.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A train contact network tension adjustment mechanism, comprising a support column (1), characterized in that: The top of the surface of the support column (1) is bolted with a bracket (2), and the right side of the bracket (2) is bolted with a pulley compensation structure (3), the surface of the pulley compensation structure (3) is wound with a steel cable (4), and one end of the steel cable (4) is bolted with a gravity tension adjustment component (5), and the gravity tension adjustment component (5) and the gravity tension adjustment component (5) are used in conjunction with the support column (1); The gravity tension adjustment assembly (5) comprises two support plates (51), and the two sides of the two support plates (51) are bolted with guide pillars (52), and the middle part of the two guide pillars (52) is provided with a bearing plate (53), and the two sides inside the bearing plate (53) are provided with limiting members (54), and the other ends of the limiting members (54) are respectively sleeved on the surfaces of the two guide pillars (52), and the top of the bearing plate (53) is bolted with a sleeve rod (55), and the surface of the sleeve rod (55) is sleeved with a weight (56), and the top of the sleeve rod (55) passes through the interior of the support plate (51) and is connected to one end of the steel cable (4).

2. A train contact network tension adjustment mechanism according to claim 1, characterized in that: The limiting member (54) includes two connecting blocks (541), and one side of the connecting block (541) close to the supporting plate (53) is rotatably connected to the supporting plate (53), and the other side of the connecting block (541) is sleeved on the surface of the guide column (52), and the two connecting blocks (541) are bolted with guide rods (542) on opposite sides, and a fixing cylinder (543) is arranged between the opposite sides of the two guide rods (542), and the guide rod (542) is extended to the inside of the fixing cylinder (543) on one side close to the fixing cylinder (543) and is bolted with a push plate (544), and a first return spring (545) is connected between the opposite sides of the two push plates (544), and the space between the opposite sides of the two push plates (544) is filled with hydraulic oil.

3. A train contact network tension adjustment mechanism according to claim 2, characterized in that: A rubber sleeve (6) is slidably sleeved on the surface of the guide column (52), and the surface of the rubber sleeve (6) is connected to the inner wall of the connecting block (541).

4. A train contact network tension adjustment mechanism according to claim 1, characterized in that: A plurality of weights (56) are stacked and arranged on the top of the bearing plate (53), and a mounting groove (7) is provided on the rear side of the weights (56). Both sides of the inner wall of the mounting groove (7) are provided with a plurality of elastic protrusions, and the side of the elastic protrusion close to the sleeve rod (55) is in close contact with it.

5. A train contact network tension adjustment mechanism according to claim 1, characterized in that: The top of the sleeve rod (55) is threadedly connected to the internal threaded tube (8), and the bottom of the internal threaded tube (8) is in close contact with the weight (56). The surface of the sleeve rod (55) is provided with threads for use with the internal threaded tube (8).

6. A train contact network tension adjustment mechanism according to claim 2, characterized in that: The top and bottom of the surface of the support column (1) are sleeved with a clamp (9), and the front side of the clamp (9) is bolted with a support plate (10), and the side of the support plate (51) close to the support plate (10) is bolted to the support plate (10), and the top of the sleeve rod (55) passes through the interior of the top support plate (10).

7. A train contact network tension adjustment mechanism according to claim 2, characterized in that: The top of the support plate (51) at the bottom is bolted to a limiting rod (11), and the top of the limiting rod (11) passes through the interior of the bearing plate (53) and extends to the interior of the sleeve rod (55); the surface of the limiting rod (11) is sleeved with a fixing sleeve (12); the surface of the fixing sleeve (12) is bolted with a damper (13) in an annular shape, and the side of the damper (13) away from the fixing sleeve (12) is bolted to a limiting roller (14); the surface of the damper (13) is provided with a second return spring (15), and the side of the second return spring (15) close to the fixing sleeve (12) and the limiting roller (14) is respectively connected to the two.

8. A train contact network tension adjustment mechanism according to claim 2, characterized in that: Grooves are provided on both sides of the interior of the carrying plate (53), and the side of the limiting member (54) close to the carrying plate (53) is located inside the groove and is rotatably connected thereto.

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