Force transmission mechanism, wrist arm positioning device, mobile catenary and operation method

Abstract

The present invention relates to a force transmission mechanism, a boom positioning device, a mobile catenary and an operation method. The force transmission mechanism is applied to a boom structure in a mobile catenary. The force transmission mechanism includes: having a moving member capable of moving back and forth; having a force transmission member for transmitting the force formed during the movement of the moving member to a force receiving portion; or the force transmission member for transmitting the force formed during the rotation of the force receiving portion to the moving member; having at least one force receiving portion, and the force transmission member directly or indirectly abuts against the force receiving portion during the movement; or the force receiving portion directly or indirectly abuts against the force transmission member during the rotation. The movement of the moving member drives the force receiving portion to move through the force transmission member, and the force receiving portion transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; effectively solving the influence brought by construction errors and at the same time solving the technical problem that the existing catenary cannot rotate in place.

Description

Technical Field

[0001] The present invention belongs to the field of mobile catenaries for electrified railways, and particularly relates to a force transmission mechanism, a boom positioning device, a mobile catenary and an operation method. Background Art

[0002] In traditional railway loading and unloading, diesel locomotives are used to tow freight cars in and out of the loading and unloading operation area. This method requires changing the traction head, resulting in difficult railway locomotive scheduling and low efficiency, causing waste of resources. In the case of heavy-haul trains, multiple shunting diesel locomotives are often required to meet the traction demand. In some coal mining departments, there is also a method of using the inertia of electric locomotives to slide through the loading and unloading operation area, and a power-off area is set in the loading and unloading operation area to ensure the safety of loading and unloading operations. The method of using the inertia of electric locomotives to slide through the coal loading and unloading operation area is difficult to control the stopping point of the locomotive. Once the parking position is not properly controlled and the electric locomotive stops in the power-off area, it will cost a high rescue fee to move the train to the powered area.

[0003] With the advancement of railway electrification traction, electric locomotives have replaced diesel locomotives in the transportation of China's main railway lines. In the electrification of cargo loading and unloading lines or in-storage maintenance, rigid movable catenaries are used. The existing rigid movable catenary system has a complex structure and is inconvenient for installation, has high requirements for line usage conditions, and poor structural reliability. If the entire moving section of the movable catenary is on one side of the railway track, one method is to use an electric motor to drag the carrier cable to move the contact wire to one side of the railway track. For a long-distance movable catenary, this method has insufficient towing force and unstable operation. Another method is to use an electric motor or an electric push rod to drive the rotating bracket to rotate, thereby driving the entire moving section of the movable catenary to move to one side of the railway track. In this method, the busbar is installed as a whole at the end of the rotating bracket, and it is difficult to control the synchronization of the electric motor or the electric push rod drive.

[0004] Currently, in one method, a heavy anchor arm is connected with a steel wire rope, and the steel wire rope passes through a pulley block and cooperates with an electric actuator to realize the recovery of the catenary. In another method, an electric motor is used to drive the rotating bracket to realize side movement.

[0005] With the innovation of electrified railway technology, those skilled in the art have continuously innovated and upgraded the technology to provide an electrified movable catenary that can meet the requirements of cargo loading and unloading lines or in-storage maintenance. Summary of the Invention

[0006] In the prior art, there are also flexible movable overhead lines. An electric motor is used to directly drag the messenger wire on one side of the flexible overhead line to move the contact wire to one side of the railway track. There are also cases where the overhead line is lifted by a mechanically driven boom. Even when lifted, the overhead line cannot be completely moved outside the railway, which still affects the loading and unloading of large goods. If a rotating boom is used to swing the overhead line left and right to one side of the railway, there are still defects that it cannot be completely swung to one side of the railway. The existing problems are as follows:

[0007] 1. Thermal expansion and contraction will definitely cause the extension of the contact wire and the messenger wire, which may lead to pantograph-catenary faults (faults between the train pantograph and the overhead line). For example, serious safety accidents such as the compensation device for adjusting the wire tension falling to the ground, the boom offset, and the positioner detaching. If the contact wire becomes slack and wraps around the train pantograph (a horizontal board that rises high above the front of the train), it will then pull down the overhead line pole, derail the locomotive, and tip over the carriages, with extremely serious consequences.

[0008] 2. The messenger wire and the contact wire are fixedly installed on the rotating boom. There are construction errors in the spacing, perpendicularity between the columns, and the tension of the messenger wire and the contact wire between the booms.

[0009] According to the existing main railway technical policies, for heavy-haul freight trains with a capacity of 5000t, the effective length of the arrival and departure tracks at the station is 1050m. For heavy-haul freight trains with a capacity of 10000t running on dedicated coal transportation lines, the effective length of the arrival and departure tracks at some stations is 1700m. For such long-distance heavy-haul trains, such as 1400m to 1700m ten-thousand-ton heavy-haul trains, due to the influence of thermal expansion and contraction and the existence of construction errors, when the movable overhead line rotates above or to the side of the railway, there are situations where the rotation is not in place.

[0010] The existing method is to set a counterweight at one end of the movable overhead line and a dragging mechanism at the other end of the movable overhead line. By pulling the messenger wire and / or the contact wire through the dragging mechanism, the contact wire is moved from one side of the railway track to above the railway track or from above the railway track to one side of the railway track.

[0011] Through the continuous research and practice of the applicant, the above solution can effectively drive the carrier cable and / or the contact wire to move to one side of the railway track or above the railway track. However, a new problem will occur during actual use: when the cantilever is set to rotate to the right to drive the contact wire and the carrier cable to move to one side of the railway track, due to the characteristics of thermal expansion and contraction of the contact wire and the carrier cable, when the rightmost cantilever moves to one side of the railway track (the cantilever is approaching parallel to the railway track, which can be understood as being completely swung to one side, leaving the space above the railway), the remaining cantilevers do not completely rotate to one side of the railway track (it can be understood that there is at least one cantilever in the entire catenary that does not completely swing to one side of the railway. For a long-distance catenary, there is a situation where it stops swinging above the side of the railway because the rightmost cantilever has swung in place). The farther the rotating cantilever is from the right cantilever, the smaller its offset. That is, when the rightmost cantilever stops rotating, the remaining cantilevers have not rotated in place yet. Especially for the mobile catenary applicable to long-distance heavy-haul trains about 1600 meters long, when the rightmost cantilever reaches the position and stops rotating, the other cantilevers farther from the right end cantilever are still in the state of not rotating in place, and even above the side of the railway track. This will affect the loading and unloading operations of other goods such as large freight yards and containers; in addition, due to the incomplete rotation, there will be situations where the pantograph has poor power-taking contact or cannot contact and obtain power, affecting the entry or exit of freight trains.

[0012] The applicant places the defect in the part of the invention content, aiming to illustrate that the raising of this technical problem is also a part of the present invention. There is no solution to this technical problem in the current publicly available technologies.

[0013] In the existing flexible catenary technologies, including the existing actual application technologies and the prior patent application documents, neither the defect nor the relevant solution has been disclosed. The applicant is confident that it is the first in the industry to provide a solution to this technical defect. If this defect cannot be solved, it will directly affect the operation of the mobile catenary, resulting in potential safety hazards during the commercial use of the mobile catenary. Therefore, the applicant has provided a complete set of solutions through research.

[0014] To achieve the above object, the applicant provides a set of technical solutions that can effectively solve the defect of the incomplete movement of the carrier cable and the contact wire in the existing mobile catenary. Moreover, compared with the rigid catenary, it has lower cost, more reliable operation, less affected by weather, and simpler maintenance; the catenary provided in this application also overcomes the deficiency of the original method of moving by dragging and instead uses the method of gravity supplement for movement. It is effectively improved on the basis of the existing catenary and can achieve the overall movement over a longer distance (1600m - 1700m). In addition to being able to meet the loading and unloading lines or in-storage maintenance of freight trains of existing locomotives, it can also be effectively applied to heavy-haul trains such as ten-thousand-ton trains.

[0015] Traditionally, the catenary and / or the contact wire are fixed rigidly to the rotating boom. By rotating the boom, the catenary and the overhead line are moved from one side of the railway track to above the track or from above the track to one side of the track. The defects of this setting method have been described above. Through continuous research and innovation, the applicant proposes a revolutionary setting method, that is, the catenary and / or the contact wire are not fixed rigidly to the rotating boom, so that the catenary and the contact wire can be free from the influence of construction errors and thermal expansion and contraction during the rotation process.

[0016] The applicant provides two technical ideas. The first is to let the catenary move reciprocally directly on the boom structure, and this method also directly eliminates the traditional "catenary clamping seat and contact wire contact seat". The second is to transfer the tension or thrust formed during the movement of the catenary to the boom structure through a force transmission member, so as to push or pull the boom structure to rotate. Of course, another method can also be adopted, that is, the boom structure is driven to rotate, and the force formed during the rotation of the boom structure is transferred to the catenary through a force transmission member, so as to drive or pull the catenary to move. The core idea is that the catenary is not fixed rigidly to the boom structure. Only when it is not fixed rigidly can it overcome the influence brought by construction errors and the problem that the catenary cannot rotate in place due to thermal expansion and contraction. Only when it is not fixed rigidly can further compensation be achieved. This is the biggest innovation point of this patent and the biggest difference from the prior art, which brings beneficial effects and solves the technical problems that the prior art cannot solve.

[0017] The patent assumes that the catenary and the contact wire can be pulled to move left or right, or the boom mechanism can be driven to rotate, including using a rotating motor to drive the boom structure to rotate, or using an electric push rod or a hydraulic push rod to push the boom structure to rotate, that is, the catenary and the contact wire can be pulled to move from one side of the railway track to above the track (working position) or from above the track to one side of the railway track (non-working position).

[0018] To achieve the above object, in the first aspect of the present invention, a force transmission mechanism is provided. The force transmission mechanism is applied to the boom structure in a moving overhead line. The force transmission mechanism includes:

[0019] There is a moving member that can move back and forth;

[0020] There is a force transmission member for transmitting the force formed during the movement of the moving member to the force receiving part; or the force transmission member is used for transmitting the force formed during the rotation of the force receiving part to the moving member;

[0021] There is at least one force receiving part, and the force transmission member directly or indirectly abuts against the force receiving part during the movement; or the force receiving part directly or indirectly abuts against the force transmission member during the rotation.

[0022] Further, the movement of the moving member drives the force-receiving portion to move through the force-transmitting member, and the force-receiving portion transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; or

[0023] When the boom structure rotates, the force-receiving portion transmits the force to the moving member through the force-transmitting member, thereby pushing or pulling the moving member to move.

[0024] Further, the moving member adopts any one of the following methods:

[0025] First: The moving member adopts a catenary; or

[0026] Second: The moving member includes a moving member body and catenaries arranged at both ends of the moving member body.

[0027] Further, the force-transmitting member further includes a fixed stopper, which is arranged on the moving member and is used to transmit the force formed during the movement of the moving member to the force-receiving portion; or the fixed stopper is used to transmit the force formed during the rotation of the force-receiving portion to the moving member.

[0028] Further, during the movement of the fixed stopper, it directly or indirectly abuts against the force-receiving portion; during the movement of the moving member, the force-receiving portion is driven to move through the fixed stopper, and the force-receiving portion transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; or

[0029] When the boom structure rotates, the force-receiving portion transmits the force to the fixed stopper, thereby pushing or pulling the moving member to move.

[0030] Further, the force-transmitting member includes an elastic force-transmitting member, which is used to transmit the force formed during the movement of the moving member to the force-receiving portion; or the elastic force-transmitting member is used to transmit the force formed during the rotation of the force-receiving portion to the moving member.

[0031] Further, during the movement of the elastic force-transmitting member, it directly or indirectly abuts against the force-receiving portion; during the movement of the moving member, the force-receiving portion is driven to move through the elastic force-transmitting member, and the force-receiving portion transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; or

[0032] When the boom structure rotates, the force-receiving portion transmits the force to the elastic force-transmitting member, thereby pushing or pulling the moving member to move.

[0033] Further, the elastic force-transmitting member adopts a spring; the installation methods of the spring include:

[0034] First: The spring is arranged on the moving member, or

[0035] Second type: One end of the spring acts on the moving member, and the other end of the spring acts on the force-receiving part.

[0036] Furthermore, the force transmission member includes a fixed stopper and an elastic force transmission member. The fixed stopper is arranged on the moving member. One end of the elastic force transmission member acts on the fixed stopper, and the other end of the elastic force transmission member acts on the force-receiving part directly or indirectly.

[0037] Furthermore, during the movement of the moving member, the elastic force transmission member is compressed or stretched by the fixed stopper, the force-receiving part is pushed or pulled, and the force-receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; or

[0038] When the boom structure rotates, the force-receiving part compresses or stretches the elastic force transmission member, the fixed stopper is pushed or pulled, and the fixed stopper transmits the force to the moving member, thereby pushing or pulling the moving member to move.

[0039] Furthermore, the maximum horizontal movement distance of the moving member in the horizontal direction can be greater than the horizontal distance corresponding to the rotation of the boom structure.

[0040] In a second aspect of the present invention, a side-shifting boom positioning device for a moving catenary is provided, which includes a rotating mechanism arranged on the boom structure; and further includes the above-mentioned force transmission mechanism, and the force transmission mechanism is directly or indirectly arranged on the rotating mechanism.

[0041] In a third aspect of the present invention, a moving catenary is provided, and the above-mentioned force transmission mechanism is arranged in at least one boom structure of the moving catenary; or

[0042] At least one of the above-mentioned side-shifting boom positioning devices is adopted in the moving catenary.

[0043] Furthermore, the setting method of the contact wire is as follows:

[0044] First type: It further includes a suspension member. One end of the suspension is arranged on the carrier cable, and the other end of the suspension is connected to the contact wire; or

[0045] Second type: It further includes a clamping structure, and the contact wire is arranged on the boom structure through the clamping structure.

[0046] Furthermore, when the first method is used: it further includes a connecting member. One end of the connecting member is connected to the suspension member, and the other end is directly or indirectly arranged on the boom structure; or

[0047] The other end of the connecting member is directly or indirectly arranged on the rotating mechanism.

[0048] The contact wire and / or the messenger wire in the movable catenary are moved from the working position to the non - working position; or from the non - working position to the working position, adopting any one or a combination of two or more of the following methods:

[0049] The first method: includes a first counterweight structure and a second counterweight structure. The first counterweight structure acts on one end of the movable catenary, and the second counterweight structure is arranged at the other end of the movable catenary; the first counterweight structure and the second counterweight structure adjust the working state of the movable catenary from both ends of the movable catenary;

[0050] The second method: includes a counterweight structure and a dragging mechanism. The counterweight structure acts on one end of the catenary, and the dragging mechanism is arranged at the other end of the catenary. The working state of the movable catenary is adjusted by pulling the counterweight structure to move through the dragging mechanism;

[0051] The third method: adding a rotatable anchor arm mechanism to the first method above. The anchor arm mechanism is arranged at any end of the catenary, or both ends are arranged; the first counterweight structure and / or the second counterweight structure drive the anchor arm mechanism to rotate, and the rotating anchor arm mechanism drives the messenger wire and / or the contact wire to move the working state of the catenary; or

[0052] The fourth method: adding a rotatable anchor arm mechanism to the second method above. The anchor arm mechanism is arranged at any end of the catenary, or both ends are arranged;

[0053] The counterweight structure directly acts on one end of the catenary, or the counterweight structure drives the anchor arm mechanism to rotate, and the rotating anchor arm mechanism drives the messenger wire and / or the contact wire to move the working state of the catenary;

[0054] The dragging mechanism directly acts on one end of the catenary, or the dragging mechanism drives the anchor arm mechanism to rotate, and the rotating anchor arm mechanism drives the messenger wire and / or the contact wire to move the working state of the catenary; or

[0055] The fifth method: adopting a rotating motor, and the rotating motor is used to drive at least one boom structure in the movable catenary to rotate.

[0056] The fourth aspect of the present invention provides a method for operating a movable catenary. This method adopts the above - mentioned movable catenary, including the following steps:

[0057] The moving part moves under force; the maximum horizontal moving distance of the moving part in the horizontal direction can be greater than the horizontal distance of the corresponding boom structure rotation.

[0058] The moving part moves and drives the force - receiving part to move through the force - transmitting part. The force - receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate;

[0059] Or

[0060] The cantilever structure rotates;

[0061] The stressed part transmits the force to the moving part through the force transmission part, thereby pushing or pulling the moving part to move.

[0062] Furthermore, the moving part is further pulled, and the stressed part is further driven to move through the force transmission part. The stressed part transmits the force to the cantilever structure, thereby pushing or pulling the cantilever structure to rotate further to achieve stroke compensation; or

[0063] The cantilever structure rotates further, and the moving part is further driven to move through the force transmission part. The stressed part transmits the force to the moving part through the force transmission part, thereby pushing or pulling the moving part to move further.

[0064] Furthermore, it further includes the steps: during the movement of the moving part, the elastic force transmission part is compressed or stretched through the fixed stop, the stressed part is pushed or pulled, and the stressed part transmits the force to the cantilever structure, thereby pushing or pulling the cantilever structure to rotate; or

[0065] During the movement of the cantilever structure, the elastic force transmission part is compressed or stretched through the stressed part, the moving part is pushed or pulled, and the stressed part transmits the force to the moving part through the force transmission part, thereby pushing or pulling the moving part to move.

[0066] Furthermore, the moving part is further pulled, and the stressed part is driven to move through the elastic force transmission part. The stressed part transmits the force to the cantilever structure, thereby pushing or pulling the cantilever structure to rotate further to achieve stroke compensation; or

[0067] The cantilever structure rotates further, and the moving part is driven to move through the elastic force transmission part. The stressed part transmits the force to the moving part through the elastic force transmission part, thereby pushing or pulling the moving part to move further.

[0068] The present invention adopts the above technical solutions and has at least the following beneficial effects:

[0069] 1), The thrust or pull force formed during the movement of the carrier cable is applied to the cantilever structure through the force transmission mechanism, thereby pulling or pushing the cantilever structure to rotate. With this structural change, the cantilever can generally be rotatably installed on the column and can rotate under any driving force. Therefore, the force transmission part is used to push or pull the support device to rotate. In this way, even when the outermost support device rotates in place (in place generally means it has swung to one side of the railway), as long as the carrier cable can be further pulled, the set force transmission part can push or pull the cantilever structure to rotate further to achieve formation compensation, thus solving the situation where all cantilevers in the existing mobile catenary cannot swing in place.

[0070] 2) The moving part (load-bearing cable) in the force transmission mechanism has a relative movement relationship with the cantilever structure. By sliding the moving part, the influence caused by construction errors and thermal expansion and contraction is effectively overcome.

[0071] 3) The load-bearing cable of the flexible catenary provided by the present invention is more evenly stressed, has a short construction period, is less affected by factors such as weather and temperature difference, can be widely applied in various harsh environments, has a long service life, can be improved on the basis of the existing catenary, and has many advantages such as convenient installation and maintenance, and a similar fixed catenary structure.

[0072] 4) When using the contact wire provided by the present invention, a ten-thousand-ton heavy-haul train will no longer use a diesel locomotive for shunting operations, overcoming the situation where traditional methods require multiple cars to be uncoupled and even unable to tow heavy-haul trains. It can effectively meet the needs of the loading and unloading lines of ten-thousand-ton trains or in-storage maintenance, improve work efficiency, and greatly save the cost of purchasing diesel locomotives and the labor costs for the deployment, maintenance, and repair of existing diesel locomotives. Brief Description of the Drawings

[0073] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0074] Figure 1 It is a schematic diagram of the rotation of the moving catenary existing under the influence of construction errors and thermal expansion and contraction;

[0075] Figure 2 It is Embodiment 1 of the force transmission mechanism of the present invention;

[0076] Figure 3 It is Embodiment 2 of the force transmission mechanism of the present invention;

[0077] Figure 4 It is Embodiment 3 of the force transmission mechanism of the present invention;

[0078] Figure 5 It is Embodiment 4 of the force transmission mechanism of the present invention;

[0079] Figure 6 It is Embodiment 5 of the force transmission mechanism of the present invention;

[0080] Figure 7 It is Embodiment 6 of the force transmission mechanism of the present invention;

[0081] Figure 8 It is Embodiment 7 of the force transmission mechanism of the present invention;

[0082] Figure 9 This is the first embodiment of the catenary installation of the present invention;

[0083] Figure 10 This is the second embodiment of the catenary installation of the present invention;

[0084] Figure 11 This is the first embodiment of the driving mode of the catenary of the present invention;

[0085] Figure 12 This is the second embodiment of the driving mode of the catenary of the present invention.

[0086] In the figure: 1. Brace structure; 2. Moving part; 3. Fixed stop; 4. Elastic force transmission part; 5. Sleeve; 6. Intermediate stop; 7. Rotating mechanism; 8. Rotating support shaft; 9. Intermediate fixing part; 10. Cross bar; 11. Fixed seat; 12. Suspension part; 13. Clamping structure; 14. Connecting part; 15. First counterweight structure; 16. Second counterweight structure; 17. Dragging mechanism; 18. Carrier cable; 19. Moving part body; 20. Column. Detailed implementation manners

[0087] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all the implementation manners consistent with the present invention. On the contrary, they are only examples of the devices consistent with some aspects of the present invention as detailed in the appended claims.

[0088] As Figure 1As shown in the figure, the schematic diagram of the traditional mobile catenary is set such that the boom rotates to the right to drive the messenger wire to move to one side of the railway track (non-operating position). Due to the influence of construction errors and thermal expansion and contraction on the messenger wire, when the rightmost boom a moves to one side of the railway track (the boom is almost parallel to the railway track, leaving the space above the railway), the other booms (from boom a to boom d) do not fully rotate to one side of the railway track (it can be understood that there is at least one boom in the entire catenary that does not fully swing to one side of the railway. For a long-distance catenary, there is a situation where it stops swinging above the side of the railway because the rightmost boom has reached the position). The farther the rotating boom is from the rightmost boom, the smaller its offset. That is, when the rightmost boom stops rotating, the other booms have not yet rotated into place. Especially for the mobile catenary of about 1600 meters applicable to long-distance heavy-haul trains, when the rightmost boom reaches the position and stops rotating, the other booms farther from the rightmost boom are still in the state of not rotating into place, and even above the side of the railway track. This will affect the loading and unloading operations of other goods such as large freight yards and containers. In addition, due to the failure to rotate into place, there is a situation where the pantograph fails to make good contact for power collection or cannot make contact to obtain power, which affects the entry or exit of freight trains.

[0089] As Figure 2 , Figure 3 shown, on the one hand, this embodiment provides a force transmission mechanism, which is applied to the boom structure 1 in the mobile catenary. The force transmission mechanism includes:

[0090] It has a moving part 2 that can move back and forth;

[0091] It has a force transmission part. The force transmission part 2 is used to transmit the force formed during the movement of the moving part to the force-receiving part; or the force transmission part is used to transmit the force formed during the rotation of the force-receiving part to the moving part 1;

[0092] It has at least one force-receiving part. During the movement of the force transmission part, it directly or indirectly abuts against the force-receiving part; or during the rotation of the force-receiving part, it directly or indirectly abuts against the force transmission part.

[0093] As a preferred embodiment, in this embodiment, the movement of the moving part 2 drives the force-receiving part to move through the force transmission part, and the force-receiving part transmits the force to the boom structure 1, thereby pushing or pulling the boom structure 1 to rotate; or, when the boom structure 1 rotates, the force-receiving part transmits the force to the moving part through the force transmission part, thereby pushing or pulling the moving part 2 to move.

[0094] The moving part adopts any of the following methods:

[0095] The first one: The moving part 1 adopts a messenger wire; or

[0096] Second type: The moving member 1 includes a moving member body 19 and load-bearing cables 18 arranged at both ends of the moving member body 19.

[0097] In the present invention, the traditional inherent solution is directly changed. The catenary itself is used as a transmission component and is movably arranged (on the fixed cantilever structure). The catenary provided by the present invention can slide back and forth on the cantilever structure, and there is a relative movement relationship. The maximum horizontal movement distance of the catenary in the horizontal direction can be greater than the rotational horizontal distance of the corresponding cantilever structure. Here, it needs to be supplemented that only when sliding occurs will the maximum horizontal movement distance of the catenary in the horizontal direction be greater than the rotational horizontal distance of the corresponding cantilever structure. If the catenary is fixed on the cantilever structure, then the horizontal movement distance of the catenary in the horizontal direction is equal to the rotational horizontal distance of the corresponding cantilever structure. It is precisely because of the relative sliding relationship that construction errors and the influence of thermal expansion and contraction can be eliminated. It is also precisely because of the relative sliding relationship that an innovation is made in the structure, and a force transmission component is used for force transmission. When the catenary is pulled (the force initiation end is an external counterweight or a dragging mechanism that pulls the catenary), the force generated during the movement of the catenary is transmitted to the cantilever structure to drive the cantilever structure to rotate to the working position or the non-working position; when the cantilever structure rotates (when the force initiation end is that the cantilever structure is driven to rotate by a rotating motor or a push rod, etc.), the force of the rotation of the cantilever structure is transmitted to the moving component (the catenary) through the force receiving part by using the force transmission component, thereby driving the catenary to move. This method breaks through the traditional thinking. Traditionally, it is considered that the catenary needs to be fixedly arranged on the cantilever, and the catenary is driven to move by the rotation of the cantilever, or the catenary is directly pulled to move; the existing related technologies (related papers and existing publicly disclosed patents) are all like this. The present invention breaks through the traditional thinking, and during the movement or rotation of the catenary, there is still a relative movement relationship between the catenary and / or the contact wire, that is, the maximum horizontal movement distance of the catenary and / or the contact wire in the horizontal direction can be greater than the rotational horizontal distance of the corresponding cantilever structure. The benefits brought by this are that the problem of construction errors is effectively solved, and the problem of thermal expansion and contraction of the catenary is also effectively solved. Here, it needs to be supplemented that since the transmission catenary is fixed on the cantilever, due to the existence of thermal expansion and contraction, when the catenary swings to one side of the railway, it may not be able to swing into place. This problem has been described above and will not be elaborated here. Another biggest highlight of the present invention is that during the side swing of the overall catenary, since the moving component (the catenary) is slidably arranged and can move back and forth on the cantilever structure, it provides a basis for further stroke compensation. An elastic force transmission component (such as a spring, or other elastic force transmission components can also be used) can be used, and through the energy storage effect of the elastic force transmission component, the cantilever structure is further pushed or pulled to swing further to achieve stroke compensation. Compared with the existing swinging situation, this solution can perfectly solve this problem. Especially for a long-distance moving catenary, such as a 1700M one, the catenary and / or the contact wire can be perfectly swung to one side of the railway and swing into place.Existing mobile contact lines, such as using rigid catenaries or flexible catenaries, cannot reach a length of 1700M, or multiple sections of mobile contact lines are spliced together, which is relatively complex in components and construction and has high costs. Of course, some people may ask that if a rotating motor is set at the root of each boom, the situation of indirect swinging not in place can also be solved. In existing prior patents and actual applications, this method is basically not adopted because a single motor failure will affect the operation of the entire mobile contact line, resulting in high failure rates and costs, and it is also complex in terms of system control. Therefore, the pursuit of the present invention is a structure with low failure rates. With the structural method of the present invention, it has the lowest failure rate, stable and reliable operation, and the key is that the operation is simple and the swinging effect is good.

[0098] As Figure 2 shown, as a preferred embodiment, the force transmission member further includes a fixed stopper 3, the fixed stopper 3 is arranged on the moving member, and the fixed stopper 3 is used to transmit the force formed during the movement of the moving member 2 to the force receiving part; or the fixed stopper 3 is used to transmit the force formed during the rotation of the force receiving part to the moving member 1.

[0099] In this embodiment, the fixed stopper 3 directly or indirectly abuts against the force receiving part during the movement; during the movement of the moving member 2, the force receiving part is driven to move through the fixed stopper 3, and the force receiving part transmits the force to the boom structure 1, thereby pushing or pulling the boom structure 1 to rotate; or when the boom structure 1 rotates, the force receiving part transmits the force to the fixed stopper 3, thereby pushing or pulling the moving member 1 to move.

[0100] As Figure 3 shown, as a preferred embodiment, the force transmission member includes an elastic force transmission member 4, and the elastic force transmission member 4 is used to transmit the force formed during the movement of the moving member 2 to the force receiving part; or the elastic force transmission member 4 is used to transmit the force formed during the rotation of the force receiving part to the moving member 2.

[0101] In this embodiment, the elastic force transmission member can adopt an elastic sleeve, and preferably a spring; the installation methods of the spring include:

[0102] The first one: the spring is arranged on the moving member, or

[0103] The second one: one end of the spring acts on the moving member, and the other end of the spring acts on the force receiving part.

[0104] The above Figure 2 provides the situation of using the fixed stopper, Figure 3A situation of using an elastic force transmission member is provided. In actual use, the fixed stop member and the elastic force transmission member can also be combined for use. It should be added that in this embodiment, the fixed stop member is fixed on the moving member and can move with the moving member. The fixed stop member actually plays a pushing role and can be understood as a pushing member.

[0105] As Figure 4 shown, the force transmission member includes a fixed stop member 3 and an elastic force transmission member 4. The fixed stop member 3 is arranged on the moving member 2. One end of the elastic force transmission member 4 acts on the fixed stop member 3, and the other end of the elastic force transmission member 4 acts on the force receiving part.

[0106] As Figure 4 shown, in this embodiment, during the movement of the moving member (moving left), the elastic force transmission member 4 is compressed or stretched through the fixed stop member 3, the force receiving part is pushed, and the force receiving part transmits the force to the wrist arm structure 1, thereby pushing the wrist arm structure 1 to rotate; or

[0107] As Figure 5 shown, when the wrist arm structure 1 rotates (rotating right), the force receiving part compresses the elastic force transmission member 4, the fixed stop member 3 is pushed, and the fixed stop member 3 transmits the force to the moving member 2, thereby pushing or pulling the moving member 2 to move.

[0108] Based on the above Figure 4 , the left end of the spring is fixed on the end face of the sleeve 5 (as shown at point C). As Figure 6 shown, when the moving member is pulled to the right, during the movement of the moving member 2 in the embodiment, the elastic force transmission member 4 is stretched through the fixed stop member 3, the force receiving part is pulled, and the force receiving part transmits the force to the wrist arm structure 1, thereby pulling the wrist arm structure 1 to rotate;

[0109] Based on Figure 6 , as Figure 7 shown, the left end of the spring is still fixed on the end face of the sleeve (as shown at point C). By adopting the method of the wrist arm structure 1 rotating to the left, the force receiving part stretches the elastic force transmission member 3, the fixed stop member 3 is pulled, and the fixed stop member 3 transmits the force to the moving member 2, thereby pulling the moving member 2 to move.

[0110] Figure 6 And Figure 7 are to illustrate that the moving member can be pulled or pushed to move, and the wrist arm structure can also be pulled or pushed to rotate.

[0111] It should be noted that: as long as the force-receiving part can rotate together with the pantograph structure, during the movement process, it is sufficient that the moving part can press against the force-receiving part, or the force-receiving part can press against the moving part during the rotation process. Now, the implementation forms of the force-receiving part will be described:

[0112] A sleeve 5 can be set, and the moving part is inserted into the sleeve. As mentioned before, the force-transmitting part includes a fixed stop and / or an elastic force-transmitting part, with three combined forms. As long as the fixed stop and / or the elastic force-transmitting part can directly or indirectly press against the force-receiving part during the movement process, the force-receiving part can be the sleeve itself, or any position of the sleeve itself. Preferably, the force-receiving parts are the two end faces of the sleeve (such as Figure 2 the positions indicated by A and B in

[0113] ), or an intermediate stop arranged inside the sleeve is also acceptable. All the above contents (including but not limited to) belong to the interpretation of the force-receiving part in the claims.

[0114] As Figure 8 shown, in addition, the force-receiving part can also be an intermediate stop 6 integrally and fixedly arranged on the sleeve for other force-receiving purposes. For example, the intermediate stop 6 can be a stop block. The force-transmitting part transmits thrust or tension during the movement process. As long as the intermediate stop can be abutted during the movement of the force-transmitting part.

[0115] In this embodiment, the maximum horizontal movement distance of the (moving part) catenary along the horizontal direction can be greater than the horizontal distance corresponding to the rotation of the pantograph structure.

[0116] As Figures 1 to 8 shown, in this embodiment, a side-shifting pantograph positioning device for a mobile catenary is also provided, including a rotating mechanism, and the rotating mechanism is arranged on the pantograph structure; it also includes the above-mentioned force transmission mechanism, and the force transmission mechanism is directly or indirectly arranged on the rotating mechanism. As Figure 8 shown, a rotating support shaft 8 is arranged in the rotating mechanism 7, and the force transmission mechanism is arranged on the rotating support shaft.

[0117] It should be noted that the force transmission mechanism can be arranged on the rotating support shaft of the rotating mechanism in this indirect manner through an intermediate fixing member 9. The intermediate fixing member serves to fixedly connect the rotating support shaft and the force transmission mechanism. Here, an implementation manner is provided, but it does not limit the protection scope of the present invention. The intermediate fixing member includes a cross bar 10 and a fixing seat 11. The cross bar is arranged on the rotating support shaft, and the force transmission mechanism is arranged on the cross bar through the fixing seat. Of course, the cross bar may not be required, and the force transmission mechanism can be directly arranged on the rotating support shaft through the fixing seat (this implementation manner is not shown in the figure).

[0118] The present invention also provides a mobile catenary system, in which at least one boom structure of the mobile catenary system is provided with the above-mentioned force transmission mechanism 7; or

[0119] At least one of the above-mentioned lateral movement boom positioning devices is adopted in the mobile catenary system, and the lateral movement boom positioning device is rotatably installed on the column 20.

[0120] The contact wire can be arranged in the following ways:

[0121] As Figure 9 shown in the figure, the first way: It further includes a suspension member 12. One end of the suspension is arranged on the carrier cable, and the other end of the suspension is connected to the contact wire; or

[0122] As Figure 10 shown in the figure, the second way: It further includes a clamping structure 13, and the contact wire is arranged on the boom structure through the clamping structure.

[0123] When using the first way: It further includes a connecting member 14. One end of the connecting member is connected to the suspension member, and the connecting member is directly or indirectly arranged on the boom structure; or

[0124] The connecting member is directly or indirectly arranged on the rotating mechanism.

[0125] In the mobile catenary system, the contact wire and / or the carrier cable move from the working position to the non-working position; or from the non-working position to the working position, and any one or a combination of two or more of the following ways can be adopted:

[0126] As Figure 11 shown in the figure, the first way: It includes a first counterweight structure 15 and a second counterweight structure 16. The first counterweight structure acts on one end of the mobile catenary system, and the second counterweight structure is arranged at the other end of the mobile catenary system; the first counterweight structure and the second counterweight structure adjust the working state of the mobile catenary system from both ends of the mobile catenary system;

[0127] As Figure 12As shown, the second method: includes a counterweight structure and a dragging mechanism 17. The counterweight structure acts on one end of the catenary, and the dragging mechanism is arranged at the other end of the catenary. By pulling the counterweight structure to move through the dragging mechanism, the working state of the moving catenary is adjusted;

[0128] The third method: (not shown in the figure) adding a rotatable anchor arm mechanism in the above first method. The anchor arm mechanism is arranged at any end of the catenary, or both ends are provided; the first counterweight structure and / or the second counterweight structure drives the anchor arm mechanism to rotate, and the rotating anchor arm mechanism drives the messenger wire and / or the contact wire to move the working state of the catenary; or

[0129] The fourth method: (not shown in the figure) a rotatable anchor arm mechanism in the above second method. The anchor arm mechanism is arranged at any end of the catenary, or both ends are provided;

[0130] The counterweight structure directly acts on one end of the catenary, or the counterweight structure drives the anchor arm mechanism to rotate, and the rotating anchor arm mechanism drives the messenger wire and / or the contact wire to move the working state of the catenary;

[0131] The dragging mechanism directly acts on one end of the catenary, or the dragging mechanism drives the anchor arm mechanism to rotate, and the rotating anchor arm mechanism drives the messenger wire and / or the contact wire to move the working state of the catenary; or

[0132] The fifth method: (not shown in the figure) using a rotating motor, and the rotating motor is used to drive at least one boom structure in the moving catenary to rotate.

[0133] On the other hand, this embodiment also provides a method for operating a moving catenary, including the following steps:

[0134] The moving part moves under force;

[0135] When the moving part moves, it drives the force-receiving part to move through the force-transmitting part. The force-receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate;

[0136] Or

[0137] The boom structure rotates;

[0138] The force-receiving part transmits the force to the moving part through the force-transmitting part, thereby pushing or pulling the moving part to move.

[0139] The moving part is further pulled, and the force-receiving part is further driven to move through the force-transmitting part. The force-receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate further to achieve stroke compensation; or

[0140] The boom structure further rotates, and further drives the moving member to move through the force transmission member. The force receiving portion transmits the force to the moving member through the force transmission member, thereby pushing or pulling the moving member to move further.

[0141] It further includes the steps of: during the movement of the moving member, the elastic force transmission member is compressed or stretched through the fixed stopper, the force receiving portion is pushed or pulled, and the force receiving portion transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; or

[0142] During the movement of the boom structure, the elastic force transmission member is compressed or stretched through the force receiving portion, the moving member is pushed or pulled, and the force receiving portion transmits the force to the moving member through the force transmission member, thereby pushing or pulling the moving member to move.

[0143] The moving member is further pulled, and the force receiving portion is driven to move through the elastic force transmission member. The force receiving portion transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate further to achieve stroke compensation;

[0144] It should be added that: since the moving member is slidably arranged on the boom structure, when the boom stops rotating, the moving member can still be further pulled. For example, when the outermost boom in the moving catenary stops rotating (generally rotates to the side of the railway), at this time, several other boom structures have not rotated in place, and the moving member can be further pulled. The elastic force transmission members in several positioning devices push or pull the boom structure to rotate further to achieve stroke compensation. Or

[0145] The boom structure further rotates, and drives the moving member to move through the elastic force transmission member. The force receiving portion transmits the force to the moving member through the elastic force transmission member, thereby pushing or pulling the moving member to move further. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A force transmission mechanism, which is applied to the boom structure in the mobile catenary, and is characterized in that: The force transmission mechanism includes: having a moving member that can move back and forth; having a force transmission member that is used to transmit the force formed during the movement of the moving member to the force-receiving part; or the force transmission member is used to transmit the force formed during the rotation of the force-receiving part to the moving member; having at least one force-receiving part, and the force transmission member directly or indirectly abuts against the force-receiving part during its movement; or the force-receiving part directly or indirectly abuts against the force transmission member during its rotation; further driving the force-receiving part to move through the force transmission member, and the force-receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to further rotate to achieve stroke compensation; or the boom structure further rotates, and further drives the moving member to move through the force transmission member, and the force-receiving part transmits the force to the moving member through the force transmission member, thereby pushing or pulling the moving member to further move.

2. The force transmission mechanism according to claim 1, characterized in that: The movement of the moving member drives the force-receiving part to move through the force transmission member, and the force-receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; or the boom structure rotates, and the force-receiving part transmits the force to the moving member through the force transmission member, thereby pushing or pulling the moving member to move.

3. The force transmission mechanism according to claim 1 or 2, characterized in that: The moving member adopts any of the following methods: First: The moving member adopts a carrier cable; or Second: The moving member includes a moving member body and carrier cables arranged at both ends of the moving member body.

4. The force transmission mechanism according to claim 3, characterized in that: The force transmission member further includes a fixed stopper, and the fixed stopper is arranged on the moving member and is used to transmit the force formed during the movement of the moving member to the force-receiving part; or the fixed stopper is used to transmit the force formed during the rotation of the force-receiving part to the moving member.

5. The force transmission mechanism according to claim 4, characterized in that: The fixed stopper directly or indirectly abuts against the force-receiving part; during the movement of the moving member, the force-receiving part is driven to move through the fixed stopper, and the force-receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; or the boom structure rotates, the force-receiving part transmits the force to the fixed stopper, thereby pushing or pulling the moving member to move.

6. The force transmission mechanism according to claim 3, wherein: The force transmission member includes an elastic force transmission member that is used to transmit the force formed during the movement of the moving member to the force-receiving part; or the elastic force transmission member is used to transmit the force formed during the rotation of the force-receiving part to the moving member.

7. The force transmission mechanism according to claim 6, characterized in that: The elastic force transmission member directly or indirectly abuts against the force-receiving part; during the movement of the moving member, the force-receiving part is driven to move through the elastic force transmission member, and the force-receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; or the boom structure rotates, the force-receiving part transmits the force to the elastic force transmission member, thereby pushing or pulling the moving member to move.

8. The force transmission mechanism according to claim 6 or 7, characterized in that: The elastic force transmission member adopts a spring; the installation methods of the spring include: First: The spring is arranged on the moving member, or Second: One end of the spring acts on the moving member, and the other end of the spring acts on the force-receiving part.

9. The force transmission mechanism according to claim 3, characterized in that: The force transmission member includes a fixed stopper and an elastic force transmission member, the fixed stopper is arranged on the moving member, one end of the elastic force transmission member acts on the fixed stopper, and the other end of the elastic force transmission member directly or indirectly acts on the force-receiving part.

10. The force transmission mechanism according to claim 9, characterized in that: During the movement of the moving member, the elastic force transmission member is compressed or stretched by the fixed stop member, the force-receiving portion is pushed or pulled, and the force-receiving portion transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; or the boom structure rotates, the force-receiving portion compresses or stretches the elastic force transmission member, the fixed stop member is pushed or pulled, and the fixed stop member transmits the force to the moving member, thereby pushing or pulling the moving member to move.

11. The force transmission mechanism according to any one of claims 1, 2, 4 to 7, 9 or 10, characterized in that: The maximum horizontal movement distance of the moving member in the horizontal direction can be greater than the horizontal distance corresponding to the rotation of the boom structure.

12. Mobile catenary side offset cantilever positioning device, characterized in that: It includes a rotating mechanism, and the rotating mechanism is arranged on the boom structure; It further includes the force transmission mechanism according to any one of claims 1 to 11, and the force transmission mechanism is directly or indirectly arranged on the rotating mechanism.

13. Mobile catenary, characterized in that: In at least one boom structure of the mobile catenary, there is provided a force transmission mechanism according to any one of claims 1 to 11; or In the mobile catenary, at least one side-shifting boom positioning device according to claim 12 is adopted.

14. The mobile catenary according to claim 13, wherein: The contact wire is arranged in the following ways: First: It further includes a suspension member, one end of the suspension is arranged on the carrier cable, and the other end of the suspension is connected to the contact wire; or Second: It further includes a clamping structure, and the contact wire is arranged on the boom structure through the clamping structure.

15. The mobile catenary according to claim 14, characterized in that: When using the first method: It further includes a connecting member, one end of the connecting member is connected to the suspension member, and the connecting member is directly or indirectly arranged on the boom structure; or the connecting member is directly or indirectly arranged on the rotating mechanism.

16. The mobile catenary according to claim 14 or 15, characterized in that: In the mobile catenary, the contact wire and / or the carrier cable move from the working position to the non-working position; or from the non-working position to the working position, and any one of the following is adopted: First method: It includes a first counterweight structure and a second counterweight structure, the first counterweight structure acts on one end of the mobile catenary, and the second counterweight structure is arranged at the other end of the mobile catenary; The first counterweight structure and the second counterweight structure adjust the working state of the mobile catenary from both ends of the mobile catenary; Second method: It includes a counterweight structure and a dragging mechanism, the counterweight structure acts on one end of the catenary, and the dragging mechanism is arranged at the other end of the catenary, and the working state of the mobile catenary is adjusted by pulling the counterweight structure to move through the dragging mechanism; Third method: In the first method above, a rotatable anchor arm mechanism is added, and the anchor arm mechanism is arranged at any end of the catenary, or both ends are arranged; the first counterweight structure and / or the second counterweight structure drive the anchor arm mechanism to rotate, and the rotating anchor arm mechanism drives the carrier cable and / or the contact wire to move the working state of the mobile catenary; Fourth method: In the second method above, a rotatable anchor arm mechanism is provided, and the anchor arm mechanism is arranged at any end of the catenary, or both ends are arranged; The counterweight structure directly acts on one end of the catenary, or the counterweight structure drives the anchor arm mechanism to rotate, and the rotating anchor arm mechanism drives the carrier cable and / or the contact wire to move the working state of the mobile catenary; The dragging mechanism directly acts on one end of the catenary, or the dragging mechanism drives the anchor arm mechanism to rotate, and the rotating anchor arm mechanism drives the carrier cable and / or the contact wire to move the working state of the mobile catenary; The fifth method: A rotating motor is adopted, and the rotating motor is used to drive at least one boom structure in the movable catenary to rotate; The sixth method: An electric or hydraulic push rod is adopted to push at least one boom structure in the movable catenary to rotate.

17. Method for operating a mobile catenary, characterized in that: This method adopts the movable catenary described in any one of claims 13 to 16, and includes the following steps: The moving part moves under force; The moving part drives the force-receiving part to move through the force-transmitting part, and the force-receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; Or The boom structure rotates; The force-receiving part transmits the force to the moving part through the force-transmitting part, thereby pushing or pulling the moving part to move.

18. The mobile catenary operation method according to claim 17, characterized in that: The moving part is further pulled, and the force-receiving part is further driven to move through the force-transmitting part. The force-receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate further to achieve stroke compensation; or the boom structure rotates further, and the moving part is further driven to move through the force-transmitting part. The force-receiving part transmits the force to the moving part through the force-transmitting part, thereby pushing or pulling the moving part to move further.

19. The mobile catenary operation method according to claim 17, characterized in that: It further includes the step: During the movement of the moving part, the elastic force-transmitting part is compressed or stretched by the fixed stopper, the force-receiving part is pushed or pulled, and the force-receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate; or during the movement of the boom structure, the elastic force-transmitting part is compressed or stretched by the force-receiving part, the moving part is pushed or pulled, and the force-receiving part transmits the force to the moving part through the force-transmitting part, thereby pushing or pulling the moving part to move.

20. The mobile catenary operation method according to claim 19, characterized in that: The moving part is further pulled, and the force-receiving part is driven to move through the elastic force-transmitting part. The force-receiving part transmits the force to the boom structure, thereby pushing or pulling the boom structure to rotate further to achieve stroke compensation; or the boom structure rotates further, and the moving part is driven to move through the elastic force-transmitting part. The force-receiving part transmits the force to the moving part through the elastic force-transmitting part, thereby pushing or pulling the moving part to move further.

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