Contact net limiting and positioning device

Abstract

The invention discloses an overhead line system limiting and positioning device which comprises a positioning wire clamp, a limiting positioner, a positioning support, a positioning pipe and a positioning ring, the limiting positioner comprises a connecting pipe and a positioning hook which are connected in sequence, and the end, away from the positioning hook, of the connecting pipe is connected with the positioning wire clamp; one end, far away from the connecting pipe, of the positioning hook is connected with the positioning support; in a static state, the included angle between the connecting pipe and the horizontal plane is 10-25 degrees, the included angle between the connecting pipe and the positioning hook is 121-132 degrees, and the included angle between the positioning support and the horizontal plane is 61-85 degrees. The lifting amount of the positioning device can be adjusted and changed according to use requirements, the maximum lifting amount reaches 300 mm or above, the positioning device can adapt to stable passing of a pantograph slide plate with the higher speed grade, the stability of a contact line is guaranteed, and safe operation of a train is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of high-speed railway contact network, and in particular to a contact network limiting and positioning device. Background Art

[0002] The electrified railway overhead contact system is the only channel to provide energy for high-speed trains. The overhead contact system includes load-bearing cables, contact wires, etc. The contact wires are suspended under the load-bearing cables through a number of suspension strings. The train contacts the overhead contact wires through the pantograph slide to obtain electricity. During the operation of the high-speed railway overhead contact system, the pressure generated by the contact between the slide and the wire is the contact force. Since the elasticity of the overhead contact is good, the lifting force exerted by the slide on the contact wire will lift the contact wire. When the pantograph and the overhead contact system operate normally, the contact wire will be displaced upward by the lifting force from the slide. Since the lifting force of the slide is the combined force of the static lifting force and the dynamic lifting force, and the dynamic lifting force is proportional to the square of the speed, for the same overhead contact system, the faster the train runs, the greater the contact force will increase, the greater the lifting force exerted by the pantograph on the contact wire, and the greater the lifting amount of the contact wire.

[0003] A limited positioning device is installed at the fixed contact line position in the contact network arm structure and the soft cross structure. The limit in the device refers to the lifting limit of the positioner. Its main function is to prevent the occurrence of bow hitting and the positioner colliding with the positioning tube while meeting the need for pantograph lifting during the train. The limited positioning device consists of a positioning wire clamp, a limited positioner, a positioning support, a positioning tube, a positioning ring, and a positioning tube support. At present, the high-speed rail limited positioning device is designed for the highest speed level of 350km / h, and the maximum lifting amount is 225mm. With the development of high-speed railways, the train speed continues to increase. The lifting amount of the existing limited positioning device is the result of the study of the characteristic parameters of the pantograph network system under the speed level, and is not suitable for higher speed levels; when the pantograph slide passes at a higher speed, the greater lifting force will produce a greater lifting amount. When the existing limited positioning device is lifted to the limit, a hard point will appear at the contact point between the slide and the contact line, which will seriously damage the pantograph. It can be seen that the existing limited positioning device is difficult to meet the lifting amount requirements of trains with higher speed levels.

[0004] Therefore, in order to adapt to the greater contact line lift caused by higher speed trains, it is necessary to study a contact line limit positioning device that can allow greater contact line lift and meet the normal passage of trains. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing limit positioning device cannot meet the lifting amount requirement of trains with higher speed levels, and to provide a contact network limit positioning device.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0007] A contact network position limiting and positioning device, comprising a positioning wire clamp, a position limiting positioner, a positioning support, a positioning tube, and a positioning ring, wherein the position limiting positioner comprises a connecting tube and a positioning hook connected in sequence, wherein one end of the connecting tube away from the positioning hook is connected to the positioning wire clamp, and one end of the positioning hook away from the connecting tube is connected to the positioning support;

[0008] In a static state, the angle between the connecting pipe and the horizontal plane is 10-25°, the angle between the connecting pipe and the positioning hook is 121-132°, and the angle between the positioning support and the horizontal plane is 61-85°.

[0009] In the technical solution of the present invention, the positioning wire clamp, the limit locator, the positioning support, the positioning tube and the positioning ring of the limit positioning device are connected in sequence, and the components are connected to each other by fasteners. The positioning wire clamp is connected to the contact line, and the other end of the positioning ring is installed on a pillar or other supporting structure; when the slide of the train has not reached the contact line, the limit positioning device is in a static state; in the static state, the angle between the connecting tube and the horizontal plane is 10-25°, the angle between the connecting tube and the positioning hook is 121-132°, the positioning support is inclined toward the pillar, the angle between the positioning support and the horizontal plane is 61-85°, and the horizontal plane is a plane parallel to the track plane; when the contact line rises, the contact line drives the positioning wire clamp and the limit locator to make clockwise circular motion with the connection between the positioning wire clamp and the limit locator as the axis, and as the contact line continues to rise, the positioning wire clamp and the limit locator rotate to the maximum lifting state. Based on the existing limit positioning device structure, the present invention adjusts the angle formed by the connecting pipe and the horizontal plane, the angle between the connecting pipe and the positioning hook, and the angle formed by the positioning support and the horizontal plane. The maximum lifting amount of the limit positioning device designed can reach more than 300mm. It can be applied to the contact network of high-speed railways with a speed level of 400km / h, allowing a larger contact line lifting amount, and can adapt to the smooth passage of pantograph slides with higher speed levels.

[0010] Furthermore, the angle between the connecting tube and the horizontal plane is 15-25°. Through the above arrangement, the rectangular tube is connected to the positioning wire clamp, and the angle between the connecting tube and the horizontal plane determines the slope of the connecting tube. When the angle between the connecting tube and the horizontal plane increases, it can ensure that the slope of the connecting tube is larger in the static state, and the limit locator has a larger lifting space, which can meet the larger lifting of the contact line.

[0011] Furthermore, the connecting tube is a rectangular tube.

[0012] Furthermore, the angle between the connecting tube and the positioning hook is 125-130°. Through the above arrangement, the positioning hook is connected between the connecting tube and the positioning support. In this solution, the angle between the connecting tube and the positioning hook is increased, which can ensure that the positioning hook will not touch the limit of the positioning support. When the limit positioning device reaches the maximum lifting amount, no hard point is generated at the contact line positioning point.

[0013] Furthermore, the length of the positioning hook is 150-520mm. Through the above-mentioned setting, the angle between the connecting pipe and the horizontal plane increases, the angle between the connecting pipe and the positioning hook increases, and the length of the corresponding positioning support is adjusted to ensure that the connecting pipe can still be connected to the positioning support through the connecting pipe under a large slope state. The length of the positioning hook is designed according to the angle between the connecting pipe and the horizontal plane and the angle between the connecting pipe and the positioning hook, and the length range of the positioning hook is 150-520mm.

[0014] Furthermore, the positioning support is inclined toward the pillar, and the angle between the positioning support and the horizontal plane is 60-70°. Through the above arrangement, the positioning support changes from a vertical state to an inclined state, which is convenient for increasing the lifting amount of the limit positioning device.

[0015] Furthermore, the length of the positioning support is 250-580mm. Through the above setting, the positioning support is tilted, and the positioning support is connected between the positioning tube and the limit positioner. In order to adapt to the adjustment of the positioning support, the length of the positioning hook is increased, and the length of the positioning support should also be increased, so that the length of the positioning support matches the length of the positioning hook to ensure the lifting amount. Through design, the length range of the positioning support is 250-580mm.

[0016] Furthermore, the length of the positioning tube is 700-1500mm. Through the above settings, in order to increase the lifting amount of the lifting device, the installation height of the positioning tube is increased, and the corresponding length of the positioning tube is shortened. The length of the positioning tube is designed according to the installation position of the positioning tube, and the length range of the positioning tube is 700-1500mm.

[0017] Furthermore, the position limiting positioning device also includes a positioning tube support, one end of which is connected to the positioning tube, and the other end of which is fixed to a pillar or other supporting structure, and the connection between the positioning support and the positioning tube is located between the connection between the positioning tube support and the positioning tube, and between the connection between the positioning ring and the positioning tube. The function of the positioning tube support is to provide additional support and fixation for the positioning tube, enhance the stability of the positioning tube, and prevent the positioning tube from excessively deforming or displacing under stress. At the same time, the connection and coordination between the positioning tube support and the positioning ring and other components contributes to the precise adjustment and reliable operation of the entire positioning device.

[0018] Furthermore, in a static state, the angle formed by the connecting pipe and the horizontal plane is 24°, the angle between the connecting pipe and the positioning hook is 130°, the angle formed by the positioning support and the horizontal plane is 61°, the length of the positioning support is 563mm, the installation height of the positioning pipe is higher, the length of the positioning pipe is 740mm, the positioning ring matches the positioning pipe, the installation height is increased, the positioning pipe support matches the positioning pipe, and the installation length is shortened.

[0019] Furthermore, the length of the positioning hook is 512 mm, the length of the positioning support is 563 mm, the length of the positioning tube is 740 mm, the positioning ring matches the positioning tube, the installation height is increased, the positioning tube support matches the positioning tube, and the installation length is shortened. Through the above settings, the maximum lifting amount of the limit positioning device is 500 mm.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The limit positioning device proposed in the present invention includes a positioning wire clamp, a limit locator, a positioning support, a positioning tube, and a positioning ring. On the basis of the existing limit positioning device structure, by adjusting the angle formed by the connecting tube and the horizontal plane, the angle between the connecting tube and the positioning hook, and the angle formed by the positioning support and the horizontal plane, the lifting amount of the designed limit positioning device can reach more than 300mm, and can be applied to the contact network of high-speed railways with a speed level of 400km / h. The lifting amount of the limit positioning device can be adjusted and changed according to the use requirements, allowing a larger contact line lifting amount, and can adapt to the smooth passage of the pantograph slide with a higher speed level. The limit positioning device can provide accurate positioning and limit the moving range of the contact line to ensure the stability of the contact line, so as to ensure the safe operation of the train. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the limit positioning device in the prior art in a static state;

[0023] Figure 2 It is a schematic diagram of the structure of the position limiting and positioning device of the present invention in a static state;

[0024] Figure 3 It is a schematic diagram of the structure of the position limiting and positioning device of the present invention in the maximum lifting state;

[0025] Markings in the figure: 1-positioning wire clamp, 2-limit locator, 21-connecting pipe, 22-positioning hook, 3-positioning support, 4-positioning pipe, 5-positioning ring, 6-positioning pipe support. DETAILED DESCRIPTION

[0026] In order to more clearly describe the invention purpose, technical scheme and technical effect advantages in the specific implementation case of the present invention, the scheme in the specific embodiment will be described in detail in combination with the drawings of the specification of the present invention. The specific technical scheme involved in the following specific embodiments is only for a clear and complete description of the innovative technical scheme of the present invention. It is only a part of the specific implementation scheme that can be adopted by the present invention, not all embodiments, and should not be understood as a limitation on the innovative scheme of the present invention. Any scheme adopting the same inventive concept of the present invention should be included in the protection scope of the present invention.

[0027] Secondly, the description of the drawings in the specific embodiments of the present invention is only for the convenience of technical personnel to understand the solution of the present invention. The partial details in the drawings are for the convenience of clearly presenting the technical solution. It should not be considered that all technical features in the drawings must be included in the specific implementation cases, and the detailed features in the drawings should not be identified as additional limitations on the innovative technical solution of the present invention. The components in the various embodiments described and shown in the drawings can be combined and arranged according to different configurations, and these changes in combination and arrangement should be identified as part of the entire embodiment of the innovative solution of the present invention and included in the scope of protection of the present invention.

[0028] In summary, the schemes or descriptions presented in the specific embodiments and drawings of the present invention are not intended to limit the scope of protection claimed, but are merely selected embodiments / cases to help technicians understand the relevant innovative solutions. Based on these embodiments, all other equivalent or parallel embodiments obtained by those skilled in the art without creative work are within the scope of protection claimed by the present invention.

[0029] It should be noted that, unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship, such as "up", "down", "left", "right", "center", "inside", "outside", etc., are all expressions based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the invented product / equipment / device is placed when it is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0030] In addition, the use of terms such as "horizontal", "vertical", "overhanging", etc. does not mean that the corresponding device / component / element is absolutely horizontal, vertical or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element is set in a specific direction such as "horizontal", "vertical", "overhanging", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0031] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading and other commonly used connection means in the field. This connection can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components.

[0032] Example 1

[0033] like Figure 1 As shown, the existing limit positioning device includes a positioning wire clamp 1, a limit locator 2, a positioning support 3, a positioning tube 4, a positioning ring 5, and a positioning tube support 6. In a static state, the angle between the connecting tube 21 of the limit locator 2 and the horizontal plane is 8°, and the angle between the connecting tube 21 and the positioning hook 22 is 120°. The positioning support 3 is in a vertical state, that is, the vertical axis of the positioning support 3 is perpendicular to the horizontal plane, and the angle between the positioning support 3 and the horizontal plane is 90°. The existing limit positioning device is designed for a maximum speed level of 350km / h, and the maximum lifting amount is 225mm. If the train pantograph slide passes at a higher speed level, the greater lifting force will produce a greater lifting amount. When the existing limit positioning device is lifted to the limit, a hard point will appear at the contact point between the slide and the contact line, and the pantograph will be damaged in severe cases. It can be seen that the existing limit positioning device is difficult to meet the lifting amount requirements of trains with higher speed levels.

[0034] In order to solve the above-mentioned problems, a contact network limit positioning device is proposed, including a positioning wire clamp 1, a limit positioner 2, a positioning support 3, a positioning tube 4, and a positioning ring 5. The limit positioner 2 includes a connecting tube 21 and a positioning hook 22 connected in sequence, the end of the connecting tube 21 away from the positioning hook 22 is connected to the positioning wire clamp 1, and the end of the positioning hook 22 away from the connecting tube 21 is connected to the positioning support 3; in a static state, the angle formed by the connecting tube 21 and the horizontal plane is 10-25°, the angle between the connecting tube 21 and the positioning hook 22 is 121-132°, the positioning support 3 is inclined, and the angle formed by the positioning support 3 and the horizontal plane is 60-85°.

[0035] It should be noted that the horizontal plane refers to a plane parallel to the track plane. The positioning wire clamp 1, the limiting locator 2, the positioning support 3, the positioning tube 4, and the positioning ring 5 of the limiting positioning device are connected in sequence. These components are interconnected by fasteners (such as bolts and nuts) to form a complete positioning device system. The positioning wire clamp 1 is directly connected to the contact line and transmits the force exerted on the contact line to the limiting locator 2. One end of the limiting locator 2 is connected to the positioning wire clamp 1 to receive the force transmitted from the contact line through the positioning wire clamp 1, and the other end is connected to the positioning tube 4 through the positioning support 3. Through its own shape and structure, the position of the contact line is limited, and a certain range of movement space is allowed for the contact line, and the position information of the contact line is transmitted to the positioning tube 4. This limiting positioning device optimizes and designs each component to allow a larger contact line lift.

[0036] The positioning wire clamp 1 fixes the contact wire in a certain position, ensures that the working surface of the contact wire is parallel to the rail surface and bears the horizontal force of the contact wire, and ensures that the contact network is always within the working range of the pantograph slide, thereby maintaining good current collection performance and avoiding accidents caused by bow detachment. Those skilled in the art can understand that the positioning wire clamp 1 is used to clamp the contact wire. The positioning wire clamp 1 adopts an existing commercially available structure. The positioning wire clamp 1 is usually designed to be open, consistent with the interface of the existing contact wire, to ensure its versatility. In some embodiments, the positioning wire clamp 1 is connected to one end of the connecting tube 21 by a positioning pin sleeve.

[0037] The limit locator 2 is a key component of the limit positioning device. Its structure and function are crucial to ensure the stable operation of the contact network. The limit locator 2 is used to adjust and limit the lateral movement range of the contact line, ensuring that the contact line swings freely within the allowable range without exceeding the safety limit. Through the coordinated work with other components such as the positioning support 3 and the positioning wire clamp 1, the contact line is accurately positioned and limited. The connecting pipe 21 in the limit locator 2 includes a rectangular tube type and a circular tube type structure. The rectangular tube type limit locator 2 has different performance requirements according to the running speed of the high-speed railway. It can be understood by those skilled in the art that the connecting pipe 21 is specifically a rectangular tube. In some embodiments, the angle between the connecting pipe 21 and the horizontal plane is 15-25°. The rectangular tube is connected to the positioning wire clamp 1. The angle between the connecting pipe 21 and the horizontal plane determines the slope of the connecting pipe 21. When the angle between the connecting pipe 21 and the horizontal plane increases, it can ensure that the slope of the connecting pipe 21 is larger in the static state. The limit locator 2 has a larger lifting space and can meet the larger lifting of the contact line.

[0038] The positioning hook 22 has a certain curvature and hook-shaped structure. The connecting tube 21 and the positioning hook 22 are connected by rivets. In some embodiments, the angle between the connecting tube 21 and the positioning hook 22 is 125-130°. The positioning hook 22 is connected between the connecting tube 21 and the positioning support 3. In this solution, the angle between the connecting tube 21 and the positioning hook 22 is increased, which can ensure that the positioning hook 22 will not touch the limit of the positioning support 3. When the limit positioning device reaches the maximum lifting amount, no hard point is generated at the contact line positioning point.

[0039] In some more preferred embodiments, the length of the positioning hook 22 is 150-520 mm. In the above technical solution, the angle between the connecting pipe 21 and the horizontal plane increases, and the angle between the connecting pipe 21 and the positioning hook 22 increases, and the length of the corresponding positioning support 3 is adjusted to ensure that the connecting pipe 21 can still be connected to the positioning support 3 through the connecting pipe 21 under a large slope state. The length of the positioning hook 22 in the current limited positioning device is 107.5 mm. The length of the positioning hook 22 is designed according to the angle between the connecting pipe 21 and the horizontal plane and the angle between the connecting pipe 21 and the positioning hook 22. The length range of the positioning hook 22 is 150-520 mm.

[0040] The positioning support 3 is the supporting base of the position limiting and positioning device. The positioning support 3 provides a position for the positioning tube 4 to be installed and fixed, and together with the positioning ring 5, ensures the stability and correct position of the positioning tube 4. One end of the positioning ring 5 is installed on the positioning tube 4 and connected to the positioning tube 4, and the other end is installed on a pillar or other supporting structure. In some embodiments, the positioning support 3 is inclined toward the pillar, and the angle between the positioning support 3 and the horizontal plane is 60-70°. In the above technical solution, the positioning support 3 changes from a vertical state to an inclined state, which is convenient for increasing the lifting amount of the position limiting and positioning device.

[0041] In some more preferred embodiments, the length of the positioning support 3 is 250-580 mm. In the above technical solution, the positioning support 3 is tilted, and the positioning support 3 is connected between the positioning tube 4 and the limit positioner 2. The length of the positioning support 3 in the current limit positioner is 209 mm. In order to adapt to the adjustment of the positioning support 3, the length of the positioning hook 22 is increased, and the length of the positioning support 3 must also be increased to match the length of the positioning hook 22 to ensure the lifting amount. By design, the length range of the positioning support 3 is 250-580 mm.

[0042] The positioning tube 4 is the main supporting part of the position limiting and positioning device. One end of the positioning tube 4 is connected to the positioning support 3, and the other end of the positioning tube 4 is connected to the positioning ring 5. It is fixed in the corresponding position by the positioning support 3. The positioning tube 4 plays a role of supporting and transmitting force. The positioning tube 4 is made of metal material, has a certain strength and rigidity, and can withstand various loads generated by the contact line. It transmits the force transmitted by the limit locator 2 to the positioning ring 5 and other components through itself, and also withstands the reaction force from the positioning ring 5 and other components to ensure the mechanical balance and stability of the entire position limiting and positioning device. In this embodiment, the positioning tube 4 adopts the existing structure, and the lifting amount of the position limiting and positioning device corresponds to the installation height of the positioning tube 4, which is higher than the installation height of the existing positioning tube 4, and the installation height of the positioning ring 5 matching the positioning tube 4 is also increased. In some embodiments, the length of the positioning tube 4 is 700-1500mm. In the above technical solution, the installation height of the positioning tube 4 is increased, and the corresponding length of the positioning tube 4 needs to be shortened. The length of the positioning tube 4 in the current limited positioning device is 1807mm. The length of the positioning tube 4 is designed according to the installation position of the positioning tube 4, and the length range of the positioning tube 4 is 700-1500mm.

[0043] In some embodiments, the position limiting positioning device also includes a positioning tube support 6, one end of the positioning tube support 6 is connected to the positioning tube 4, and the other end of the positioning tube support 6 is fixed on a pillar or other supporting structure, the other end of the positioning tube support 6 is fixed on a pillar or other supporting structure, the connection between the positioning support 3 and the positioning tube 4 is located between the connection between the positioning tube support 6 and the positioning tube 4, and the connection between the positioning ring 5 and the positioning tube 4. The specific connection method of the positioning tube support 6 may vary according to different designs, such as by bolt connection, etc.; the role of the positioning tube support 6 is to provide additional support and fixation for the positioning tube 4, enhance the stability of the positioning tube 4, and prevent the positioning tube 4 from excessive deformation or displacement under stress. At the same time, the connection and coordination between the positioning tube support 6 and the positioning ring 5 and other components contribute to the precise adjustment and reliable operation of the entire positioning device. When the installation height of the positioning tube 4 is higher and the length range is 700-1500mm, the structure of the positioning ring 5 and the positioning tube support 6 remains unchanged, the positioning ring 5 matches the positioning tube 4, the installation height is increased, the positioning tube support 6 matches the positioning tube 4, and the installation length is shortened.

[0044] like Figure 2 As shown, when the slide plate of the train has not reached the contact line, the limit positioning device is in a static state; when the contact line is lifted, the contact line drives the positioning wire clamp 1 and the limit locator 2 to make clockwise circular motion with the connection between the positioning wire clamp 1 and the limit locator 2 as the axis. As the contact line continues to rise, the positioning wire clamp 1 and the limit locator 2 rotate to the maximum lifting state, and the maximum lifting amount exceeds 300mm. Compared with the traditional contact network limit positioning device with an allowable lifting amount of 225mm, this device allows a larger lifting amount and can meet the needs of high-speed railways with higher speed levels for contact networks.

[0045] Example 2

[0046] The present embodiment provides a contact network limiting and positioning device, the positioning device comprises a positioning wire clamp 1, a limiting locator 2, a positioning support 3, a positioning tube 4, a positioning ring 5 and a positioning tube support 6, the limiting locator 2 comprises a connecting tube 21 and a positioning hook 22 connected in sequence, the end of the connecting tube 21 away from the positioning hook 22 is connected to the positioning wire clamp 1, the end of the positioning hook 22 away from the connecting tube 21 is connected to the positioning support 3, and the structures and connection relationships of different components are the same as those in Example 1; in a static state, the angle between the connecting tube 21 and the horizontal plane is 24°, the angle between the connecting tube 21 and the positioning hook 22 is 130°, the length of the positioning hook 22 is 512mm, the positioning support 3 is inclined, the angle between the positioning support 3 and the horizontal plane is 61°, the length of the positioning support 3 is 563mm, the installation height of the positioning tube 4 is higher, the length of the positioning tube 4 is 740mm, the positioning ring 5 matches the positioning tube 4, the installation height is increased, the positioning tube support 6 matches the positioning tube 4, and the installation length is shortened.

[0047] As the contact line continues to rise, the positioning clamp 1 and the limit locator 2 rotate to Figure 3 The state shown is the maximum lifting state, and the maximum lifting amount is 500 mm; when the lifting amount is 500 mm, the angle formed by the connecting pipe 21 and the horizontal plane is 1°.

[0048] For those skilled in the art, when understanding the solutions described in the specific embodiments of the present invention, they can refer to the conventional technical manuals in the field. At the same time, for the places where the above-mentioned terms appear, they can make appropriate understandings or adjustments for reference, and deduce the implementation of the same or similar technical solutions without paying any creative work.

[0049] The above embodiments describe only the basic principles, main features and / or advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the invention content of the specification only describe the principles or specific cases of the present invention. Without departing from the essence of the innovative idea of ​​the present invention, the innovative scheme of the present invention may be subject to various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present invention.

Claims

1. A contact network position limiting and positioning device, comprising a positioning wire clamp (1), a position limiting and positioning device (2), a positioning support (3), a positioning tube (4), and a positioning ring (5), characterized in that: The limit positioner (2) comprises a connecting tube (21) and a positioning hook (22) which are connected in sequence, wherein one end of the connecting tube (21) away from the positioning hook (22) is connected to the positioning wire clamp (1), and one end of the positioning hook (22) away from the connecting tube (21) is connected to the positioning support (3); In a static state, the angle between the connecting pipe (21) and the horizontal plane is 10-25°, the angle between the connecting pipe (21) and the positioning hook (22) is 121-132°, and the angle between the positioning support (3) and the horizontal plane is 61-85°.

2. A contact network limiting and positioning device according to claim 1, characterized in that: The angle formed between the connecting pipe (21) and the horizontal plane is 15-25°.

3. A contact network limiting and positioning device according to claim 1, characterized in that: The angle between the connecting pipe (21) and the positioning hook (22) is 125-130°.

4. A contact network limiting and positioning device according to claim 1, characterized in that: The length of the positioning hook (22) is 150-520 mm.

5. The contact network limiting and positioning device according to claim 1, characterized in that: The positioning support (3) is inclined towards the support column, and the angle formed between the positioning support (3) and the horizontal plane is 60-70°.

6. A contact network limiting and positioning device according to claim 1, characterized in that: The length of the positioning support (3) is 250-580 mm.

7. A contact network position limiting and positioning device according to claim 1, characterized in that: The length of the positioning tube (4) is 700-1500 mm.

8. A contact network limiting and positioning device according to any one of claims 1 to 7, characterized in that: The position limiting and positioning device also includes a positioning tube support (6), one end of the positioning tube support (6) is connected to the positioning tube (4), and the other end of the positioning tube support (6) is fixed on a pillar.

9. The contact network limiting and positioning device according to claim 1, characterized in that: In a static state, the angle formed between the connecting pipe (21) and the horizontal plane is 24°, the angle formed between the connecting pipe (21) and the positioning hook (22) is 130°, and the angle formed between the positioning support (3) and the horizontal plane is 61°.

10. A contact network position limiting and positioning device according to claim 9, characterized in that: The length of the positioning hook (22) is 512 mm, the length of the positioning support (3) is 563 mm, and the length of the positioning tube (4) is 740 mm.

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