Railway catenary servo type intelligent portable height adjusting instrument and use method thereof

Abstract

This invention relates to a servo-type intelligent portable height adjuster for railway catenary systems and its usage method. The height adjuster includes a recovery rod with an internal recovery compartment. A first hook assembly is located at one end of the recovery rod. A micro motor is housed within the recovery rod and connected to a transmission component. An extension rod with dimensions matching the inner wall shape of the recovery rod is fixed externally to the transmission component. A second hook assembly is located at one end of the extension rod. The micro motor drives the extension rod to extend and retract along the length of the recovery rod via the transmission component. The surface of the recovery rod is equipped with a verticality detection device, a laser rangefinder, and a control area. This invention automatically adjusts the height when suspended between the catenary and the catenary cable, completing the adjustment with a single measurement. This significantly reduces the number of maintenance personnel and saves time on replacing or adjusting droppers.

Description

Technical Field

[0001] This invention belongs to the technical field of railway catenary height adjustment equipment, and in particular relates to a railway catenary servo-type intelligent portable height adjustment instrument and its usage method. Background Technology

[0002] In railway electrification systems, the overhead contact line, as the power supply source for electric locomotives, is of paramount importance. A suitable and stable overhead contact line height is a key factor in ensuring good pantograph-catenary contact and achieving efficient and stable current collection. With the continuous increase in railway operating speeds and train density, more stringent requirements are placed on the accuracy and stability of the overhead contact line height. For example, in high-altitude and cold regions, large temperature differences and frequent rain and snow cause soil loosening, making the overhead contact line supports prone to tilting, which in turn leads to changes in the height of the overhead contact line conductors, affecting the power supply to electric locomotives.

[0003] Currently, there are several main methods for adjusting the height of the overhead contact line: One method involves adjusting the contact wire droppers. This method requires the use of a ladder or rail-mounted work vehicle, with a 6C vehicle-mounted or hand-operated laser measuring instrument to determine sections with a height difference > 10mm. Within the designated maintenance window, a static laser measuring instrument is used to verify the precise guide height of each dropper / positioning point. The required millimeters to raise / lower the droppers are calculated based on the design slope (e.g., ≤ 3‰ for 120km / h sections). The dropper clamps or positioning devices are loosened, and a hydraulic tensioner or electric chain hoist is used to raise / lower the line to the target height in one go. After verification, the clamps are locked to complete the height adjustment. This method requires at least 9 people per work group, including operators and support staff. Based on 100 minutes of effective working time, only 150 meters of contact wire height adjustment can be completed. This not only results in high costs associated with deploying large machinery but also extremely low labor efficiency. Other tools include chain hoists or wire rope tensioners. However, these tools have a wide range of adjustment levels, making them inaccurate to the millimeter, and they can only tighten and raise the rope, not release and lower it, making them extremely inconvenient to use.

[0004] To address the aforementioned issues, existing patent ZL 202221941400.9 discloses a contact wire structure height fine adjuster. This device uses a hexagonal crank handle inserted into a dial to rotate, causing a grooved wheel to tighten or release the wire rope to adjust the distance. It achieves millimeter-level adjustments and integrates wire feeding and reeling, replacing hydraulic tensioners or electric chain hoists. It is also compact and portable. However, these height fine adjusters still require manual operation by the operator, leaving room for further improvement in work efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a servo-type intelligent portable height adjuster for railway catenary and its usage method, which can quickly adjust the height of railway catenary and improve the overall work efficiency.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: A railway catenary servo-type intelligent portable height adjustment device is provided, including a recovery rod with an internal recovery compartment. One end of the recovery rod has a first hook assembly, and the end of the recovery rod away from the first hook assembly has a recovery hole. A micro motor is located inside the recovery rod near the first hook assembly. The micro motor is connected to a transmission component arranged along the length of the recovery rod. An extension rod with dimensions matching the shape and size of the inner wall of the recovery rod is fixed outside the transmission component. A second hook assembly is located at the end of the extension rod away from the first hook assembly. The micro motor drives the extension rod to extend and retract along the length of the recovery rod through the transmission component. The surface of the recovery rod is provided with a verticality detection device, a laser rangefinder, and a functional area. A central processing unit is located on the back of the functional area. The central processing unit is connected to a control area located on the surface of the recovery rod, the laser rangefinder, and the micro motor.

[0007] Preferably, the micro motor is a rotary motor, the transmission component includes a screw connected to the output shaft of the micro motor, a guide block with an internal threaded guide hole is sleeved on the screw, the guide block is fixedly connected to the extension rod, and the cross-section of the recovery rod and the extension rod are both rectangular.

[0008] Preferably, the extension rod has a boss on the outer periphery of one end near the retrieval rod, and the retrieval rod has a limiting ring plate smaller than the boss at the end with the retrieval hole.

[0009] Preferably, the recovery rod is equipped with a battery that powers the micro motor and the central processing unit.

[0010] Preferably, the control area includes a display screen and a control keyboard. The display screen is used to display the set final height of the contact wire or the initial height of the lifting platform to the track, as well as the current length of the dropper after calculation. The control keyboard is used to start and stop the equipment and manually set the initial data.

[0011] Preferably, the verticality detection device includes two levels respectively disposed on two adjacent side surfaces of the recovery rod.

[0012] Preferably, the first hook assembly includes a first connecting plate with a plurality of connecting screw holes, the first connecting plate being fixed to the end of the recovery rod by connecting bolts; the second hook assembly includes a second connecting plate with a plurality of connecting screw holes, the second connecting plate being fixed to the end of the rigid extension member by connecting bolts.

[0013] This invention also provides a method for using a railway catenary servo-type intelligent portable height adjuster, comprising the following steps:

[0014] S1. The operator rides the rail work vehicle along the track to the bottom of the railway catenary to be adjusted, and starts the railway catenary servo-type intelligent portable height adjustment instrument.

[0015] S2. After calibrating and zeroing the railway catenary servo-type intelligent portable height adjuster, the height h1 of the track to the bottom plate of the track operation vehicle lifting platform is measured by a laser rangefinder or input by the control keyboard.

[0016] S3. Input the final required standard height H from the track to the contact wire into the railway contact wire servo-type intelligent portable height adjustment instrument. The central processing unit automatically calculates the distance h2 = H - h1 + L from the laser rangefinder to the bottom plate of the lifting platform, where L is the distance from the laser rangefinder to the first hook assembly.

[0017] S4. Extend the inner cylinder as needed, suspend the first hook assembly on the contact wire, and suspend the second hook assembly on the catenary cable;

[0018] S5. Start the railway catenary servo-type intelligent portable height adjuster. The central processor automatically measures the distance to the bottom plate of the lifting platform through the laser rangefinder and controls the micro motor to drive the inner cylinder to retract until the catenary height reaches the final required standard height H.

[0019] S6. Replace or adjust the suspension wire between the catenary cable and the catenary on one side of the railway catenary servo-type intelligent portable height adjuster and tighten it.

[0020] S7. Manually drive the extended inner cylinder to remove the railway contact wire servo-type intelligent portable height adjuster, and proceed to the next dropper to repeat S2-S7.

[0021] Preferably, the verticality of the railway catenary servo-type intelligent portable height adjuster is confirmed throughout the entire use process using a verticality detection device.

[0022] The beneficial effects are as follows: (1) The servo-type intelligent portable height adjuster is lightweight and easy to carry. The display and input functions can be set up to achieve a variety of functions. It is easy to use and the interface is user-friendly, which is more conducive to its widespread promotion; (2) The invention is easy to operate. The height of the contact network is automatically measured and adjusted through the intelligent control system, which saves time and effort and reduces personnel operations; (3) The intelligent control system of the servo-type intelligent portable height adjuster automatically calculates the adjustment height and automatically realizes the height adjustment of the contact network; (4) The maintenance of the railway contact network requires a lot of manual pulling and measurement work. By suspending the servo-type intelligent portable height adjuster between the contact network and the catenary cable to adjust the height of the contact network, the height adjustment can be completed in one measurement, which can greatly reduce the number of maintenance personnel and save the time of replacing or adjusting the suspension cable; (5) The laser rangefinder can accurately measure the height of the railway contact network. By adjusting the spacing of the micro motor drive hook assembly through the intelligent control system, the height control accuracy of the railway contact network can be achieved to 0.01mm, ensuring good contact between the contact network and the pantograph, and ensuring the safety and stability of the running train. Attached Figure Description

[0023] Figure 1 This is a flowchart illustrating the use of a servo-type intelligent portable height adjustment device for railway overhead contact lines.

[0024] Figure 2 This is a front view of a railway catenary servo-type intelligent portable height adjustment device.

[0025] Figure 3 This is a cross-sectional view of a railway catenary servo-type intelligent portable height adjustment device.

[0026] Figure 4 for Figure 3 Sectional view at point AA.

[0027] Figure 5 for Figure 3 Enlarged view of section ii in the middle.

[0028] Figure 6 This is a connection diagram of a servo-type intelligent portable height adjustment instrument control system for railway catenary.

[0029] Figure 7 for Figure 2 Enlarged view of the central control area.

[0030] Figure 8 This is a schematic diagram illustrating the usage of a railway catenary servo-type intelligent portable height adjuster.

[0031] Figure 9 This is a schematic diagram illustrating the second method of using a railway catenary servo-type intelligent portable height adjuster.

[0032] Among them, a. Servo-type intelligent portable height adjustment instrument, b. Catenary cable, c. Contact wire, d. Dropper, e. Rail work vehicle, f. Rail, g. Lifting platform, L. Distance from laser rangefinder to hook, H. Contact wire height, h1. Distance from lifting platform to guide rail, h2. Distance from laser rangefinder to lifting platform;

[0033] 1. Rod assembly; 2. Intelligent control system; 3. Hook assembly;

[0034] 11. Retrieval rod; 12. Extension rod; 13. Screw;

[0035] 111. Recycling rod body; 112. Recycling bin; 113. Ring plate; 114. Recycling hole;

[0036] 121. Extension rod body; 122. Inner cylinder; 123. Boss; 124. Guide block; 125. Threaded guide hole;

[0037] 21. Central processing unit; 22. Control area; 23. Micro motor; 24. Laser rangefinder; 25. Battery; 26. Level.

[0038] 221. Display screen; 222. Function keypad;

[0039] 31. Hook, 32. Connecting plate, 33. Connecting screw hole, 34. Connecting bolt.

[0040] The same markings in each diagram represent the same component. Detailed Implementation

[0041] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0042] like Figure 2 , 3As shown, this invention provides a railway catenary servo-type intelligent portable height adjustment device, including a recovery rod 11 with an internal recovery compartment 112. One end of the recovery rod 11 is provided with a first hook assembly 3, and the end of the recovery rod 11 away from the first hook assembly 3 has a recovery hole 114. A micro motor 23 is provided inside the recovery rod 11 near the first hook assembly 3. The micro motor 23 is connected to a transmission component arranged along the length of the recovery rod 11. The transmission component is externally fixed with dimensions matching the shape of the inner wall of the recovery rod 11. A matching extension rod 121 is provided at one end of the extension rod 121 away from the first hook assembly 3, and the micro motor 23 drives the extension rod 121 to extend and retract along the length direction of the retrieval rod 11 through the transmission component. The surface of the retrieval rod 11 is provided with a verticality detection device, a laser rangefinder 24 and a control area 22. The central processing unit 21 is located on the back of the control area 22. The central processing unit 21 is connected to the control area 22, the laser rangefinder 24 and the micro motor 23 provided on the surface of the retrieval rod 11.

[0043] In one specific embodiment, the micro motor 23 is a rotary motor, and the transmission component includes a screw 13 connected to the output shaft of the micro motor 23. A guide block 124 with an internally threaded guide hole 125 is fitted onto the screw 13. The guide block 124 is fixedly connected to the extension rod 121. Both the recovery rod 11 and the extension rod 121 have rectangular cross-sections. In other embodiments, the transmission component can also employ a side-mounted motor with a worm gear transmission system to directly control the extension and retraction of the inner cylinder 122; or the micro motor 23 can be directly configured as a telescopic motor to adjust the distance between the first hook assembly 3 and the second hook assembly 3.

[0044] In a kind of Figure 5 In the specific embodiment shown, the extension rod 121 has a boss 123 on its outer periphery near the end of the retrieval rod 11, and the retrieval rod 11 has a limiting ring plate 113 smaller than the boss 123 at the end where the retrieval hole 114 is located. This ensures that the inner cylinder 122 will not be pushed out of the retrieval rod 11 during electric extension and retraction.

[0045] In a kind of Figure 3 In the specific embodiment shown, the recovery rod 11 is equipped with a battery 25 that powers the micro motor 23 and the central processing unit 21, allowing for extended use on a single charge. In other embodiments, an external power supply can be used to reduce the weight of the device itself.

[0046] In a kind of Figure 2 , 7In the specific embodiment shown, the control area 22 includes a display screen 221 and a control keyboard 222. The display screen 221 is used to display the set final height of the contact wire or the initial height of the lifting platform to the track, and the current length of the dropper d calculated by the central processing unit 21, etc. The control keyboard 222 is used to start and stop the equipment and manually set the initial data. By pressing the Initial H button, the initial height h1 of the lifting platform to the track can be entered at the position where the final height of the contact wire is displayed on the display screen. By pressing the Final H button, the height H of the contact wire can be entered. Then, based on the distance h2 from the laser rangefinder to the lifting platform, the central processing unit automatically calculates the current length of the dropper d using d = H - h1 - h2 and always displays it on the display screen 221.

[0047] In a kind of Figure 2 In the specific embodiment shown, the verticality detection device includes two levels 26 respectively disposed on two adjacent side surfaces of the recovery rod 11. When both levels 26 on both sides are centered, the invention is considered to be vertical, thus avoiding errors in the laser rangefinder 24 due to non-perpendicularity.

[0048] In a kind of Figure 2 , 3 In the specific embodiment shown, the first hook assembly 3 includes a first connecting plate 32 with a plurality of connecting screw holes 33, and the first connecting plate 32 is fixed to the end of the recovery rod 11 by connecting bolts 34; the second hook assembly 3 includes a second connecting plate 32 with a plurality of connecting screw holes 33, and the second connecting plate 32 is fixed to the end of the rigid extension member by connecting bolts 34. In this embodiment, the hook body of the hook assembly 3 is a single hook, but in other embodiments it can be connected to a double hook via the connecting plate 32 depending on the contact wire configuration.

[0049] like Figure 1 As shown, the present invention also provides a method for using a railway catenary servo-type intelligent portable height adjuster, comprising the following steps:

[0050] S1. The operator rides the rail work vehicle along the track to the bottom of the railway catenary to be adjusted, and starts the railway catenary servo-type intelligent portable height adjustment instrument.

[0051] S2. After calibrating and zeroing the railway catenary servo-type intelligent portable height adjuster, the height h1 of the track to the bottom plate of the track operation vehicle lifting platform is measured by the laser rangefinder 24 or input by the control keyboard 222.

[0052] S3. Input the final required standard height H from the track to the contact wire into the railway contact wire servo-type intelligent portable height adjustment instrument. The central processing unit 21 automatically calculates the distance h2 = H-h1+L from the laser rangefinder 24 to the bottom plate of the lifting platform, where L is the distance from the laser rangefinder 24 to the first hook assembly 3. This data is built into the system.

[0053] S4. Extend the inner cylinder 122 as needed, suspend the first hook assembly 3 on the contact wire and the second hook assembly 3 on the catenary cable;

[0054] S5. Start the railway catenary servo-type intelligent portable height adjuster. The central processor 21 automatically measures the distance to the bottom plate of the lifting platform through the laser rangefinder 24 and controls the micro motor 23 to drive the inner cylinder 122 to retract until the catenary height reaches the final required standard height H.

[0055] S6. Replace or adjust the suspension wire between the catenary cable and the catenary on one side of the railway catenary servo-type intelligent portable height adjuster and tighten it.

[0056] S7. Manually drive the extended inner cylinder 122 to remove the railway contact wire servo-type intelligent portable height adjuster, and proceed to the next drop wire location to repeat S2 to S7.

[0057] The verticality of the railway catenary servo-type intelligent portable height adjuster is confirmed throughout the entire usage process using a verticality detection device.

[0058] In addition, such as Figure 8 As shown, when the height of the catenary cable b is relatively low and it is possible to make contact without adjusting the height of the lifting platform g, the method of using this invention is as follows: The operator stands on the lifting platform g at its lowest position and holds this invention to hook the first hook assembly 3 onto the contact wire c, and the second hook assembly 3 onto the catenary cable b; the operator determines whether the distance from the contact wire c to the track f plane meets the design requirements based on the reading of the laser rangefinder 24; after confirming that the design requirements are met, the suspension cable d is re-locked.

[0059] like Figure 9 As shown, another method of using the present invention when the height of the catenary cable b is high and the height of the lifting platform g needs to be adjusted is as follows: The operator stands on the raised lifting platform g and first uses the laser rangefinder 24 of the present invention to measure the height h1 between the lifting platform g and the plane of the track f; then, the operator holds the present invention to hang the first hook assembly 3 on the contact wire c and the second hook assembly 3 on the catenary cable b; the operator determines whether the distance from the contact wire c to the plane of the track f meets the design requirements based on the reading of the laser rangefinder 24; after confirming that the design requirements are met, the suspension cable d is re-locked.

Claims

1. A method for using a servo-type intelligent portable height adjuster for railway overhead contact lines, characterized in that... A railway catenary servo-type intelligent portable height adjuster is used. The railway catenary servo-type intelligent portable height adjuster includes a recovery rod with an internal recovery compartment. One end of the recovery rod is provided with a first hook assembly, and the end of the recovery rod away from the first hook assembly has a recovery hole. A micro motor is located inside the retrieval rod near the first hook assembly. The micro motor is connected to a transmission component arranged along the length of the retrieval rod. An extension rod with dimensions matching the inner wall shape of the retrieval rod is fixed outside the transmission component. A second hook assembly is located at the end of the extension rod away from the first hook assembly. The micro motor drives the extension rod to extend and retract along the length of the retrieval rod via the transmission component. The surface of the recovery pole is equipped with a verticality detection device, a laser rangefinder, and a control area. The central processing unit is located on the back of the control area and is connected to the control area, the laser rangefinder, and the micro motor located on the surface of the recovery pole. The method of using the railway catenary servo-type intelligent portable height adjuster includes the following steps: S1. The operator rides the rail work vehicle along the track to the bottom of the railway catenary to be adjusted, and starts the railway catenary servo-type intelligent portable height adjustment instrument. S2. After calibrating and zeroing the railway catenary servo-type intelligent portable height adjuster, the height h1 of the track to the bottom plate of the track operation vehicle lifting platform is measured by a laser rangefinder or input by the control keyboard. S3. Input the final required standard height H from the track to the contact wire into the railway contact wire servo-type intelligent portable height adjustment instrument. The central processing unit automatically calculates the distance h2=H-h1+L from the laser rangefinder to the bottom plate of the lifting platform, where L is the distance from the laser rangefinder to the first hook assembly. S4. Extend the inner cylinder as needed, suspend the first hook assembly on the contact wire, and suspend the second hook assembly on the catenary cable; S5. Start the railway catenary servo-type intelligent portable height adjuster. The central processor automatically measures the distance to the bottom plate of the lifting platform through the laser rangefinder and controls the micro motor to drive the inner cylinder to retract until the catenary height reaches the final required standard height H. S6. Replace or adjust the suspension wire between the catenary cable and the catenary on one side of the railway catenary servo-type intelligent portable height adjuster and tighten it. S7. Manually drive the extended inner cylinder to remove the railway catenary servo-type intelligent portable height adjuster, and proceed to the next dropper to repeat S2~S7.

2. The method of using a railway catenary servo-type intelligent portable height adjuster according to claim 1, characterized in that, The verticality of the railway catenary servo-type intelligent portable height adjuster is confirmed throughout the entire usage process using a verticality detection device.

3. The method of using a railway catenary servo-type intelligent portable height adjuster according to claim 1, characterized in that, The micro motor is a rotary motor, and the transmission component includes a screw connected to the output shaft of the micro motor. A guide block with an internal threaded guide hole is fitted on the screw. The guide block is fixedly connected to the extension rod. Both the recovery rod and the extension rod have rectangular cross-sections.

4. The method of using a railway catenary servo-type intelligent portable height adjuster according to claim 1, characterized in that, The extension rod has a boss on its outer periphery near the end of the retrieval rod, and the end of the retrieval rod with the retrieval hole has a limiting ring plate smaller than the boss.

5. The method of using a railway catenary servo-type intelligent portable height adjuster according to claim 1, characterized in that, The recovery rod contains a battery that powers the micro motor and the central processing unit.

6. The method of using a railway catenary servo-type intelligent portable height adjuster according to claim 1, characterized in that, The control area includes a display screen and a control keyboard. The display screen is used to display the set final height of the contact wire or the initial height of the lifting platform to the track, and the current length of the dropper after calculation. The control keyboard is used to start and stop the equipment and manually set the initial data.

7. The method of using a railway catenary servo-type intelligent portable height adjuster according to claim 1, characterized in that, The verticality detection device includes two levels respectively located on two adjacent side surfaces of the recovery rod.

8. The method of using a railway catenary servo-type intelligent portable height adjuster according to claim 1, characterized in that, The first hook assembly includes a first connecting plate with a plurality of connecting screw holes, and the first connecting plate is fixed to the end of the recovery rod by connecting bolts; the second hook assembly includes a second connecting plate with a plurality of connecting screw holes, and the second connecting plate is fixed to the end of the extension rod by connecting bolts.

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