Walking mechanism suitable for rigid contact line surface treatment device

Abstract

This application relates to the field of rail power supply technology processing, and discloses a traveling mechanism suitable for a rigid contact wire surface treatment device. The traveling mechanism includes swing arms, traveling wheels, actuation components, and locking components. Two swing arms are located on both sides of the traveling direction of the rigid contact wire surface treatment device, and the two swing arms are hinged to the frame. Two sets of traveling wheels are mounted opposite each other at the first ends of the two swing arms. The two sets of traveling wheels move between a working position and an open position driven by the actuation components. During assembly, by manipulating the actuation components, the second ends of the two swing arms move outwards in opposite directions, simultaneously causing the two sets of traveling wheels mounted at the first ends of the two swing arms to move inwards towards each other, thus moving the two sets of traveling wheels from the open position to the working position. When the two sets of traveling wheels are in the working position, the locking components lock the two sets of traveling wheels in the working position. This application has a reasonable design, simple structure, and is easy to use.

Description

Technical Field

[0001] This application relates to the field of rail power supply technology processing, and in particular to a traveling mechanism suitable for a rigid contact wire surface treatment device. Background Technology

[0002] In recent years, with the continuous improvement of people's living standards and the advancement of rural urbanization, a large number of urban populations have poured into cities. Compared with public transportation, rail transit has many advantages such as large carrying capacity, fast speed and good safety. Therefore, many cities have carried out the construction of urban rail transit in order to alleviate traffic pressure.

[0003] For subway power supply systems, flexible overhead contact lines or third rails are generally used in subway depots and elevated sections; rigid overhead contact lines or third rails are generally used in underground tunnel sections. Each of these three power supply methods—flexible, rigid, and third rails—has its own advantages and disadvantages. Rigid overhead contact lines mainly consist of overhead rigid busbars, contact wires, support and positioning devices, insulation components, and overhead ground wires. Due to their simple structure, tension-free contact wires, lack of risk of wire breakage, and ease of maintenance, they are widely used in subway tunnel sections; that is, most major subway tunnel sections in China use rigid overhead contact lines for power supply. When using third rail power supply, the vehicle draws current through contact shoes; when using flexible or rigid overhead contact lines, the vehicle draws current through direct contact between the pantograph and the contact wire.

[0004] This article primarily discusses the rigid contact wire power supply method, where the key determining factor is the dynamic matching degree between the contact wire and the pantograph. Therefore, daily inspection and maintenance of the contact wire are crucial. Common faults mainly include: abnormal wear of the contact wire in local sections, arcing at insulation joints and misaligned joints, insulator misalignment, and busbar twisting and deformation. These problems significantly accelerate the wear of the contact wire and pantograph, leading to increased operation and maintenance costs. In severe cases, they can affect train operation and consequently the operation of the entire line.

[0005] Uneven wear of the rigid overhead contact line is a common problem encountered during operation and maintenance. During train operation, especially during acceleration phases, the train sways rapidly, causing pantograph vibration and a large current flow between the pantograph and the contact line. This leads to the contact line heating up and softening, accelerating wear on both the contact line and the pantograph, resulting in an uneven, rough surface. To address this abnormal wear and avoid negatively impacting train operation, manual polishing of the contact line is currently employed to ensure a smooth surface and mitigate abnormal wear.

[0006] To address the aforementioned problems, Chinese Utility Model Patent (Authorization Announcement No.: CN208601227U) discloses a contact wire polishing machine for rigid contact wires. It includes a frame and a traveling mechanism and a polishing mechanism respectively mounted on the frame. The polishing mechanism includes a polishing motor and polishing wheels driven by the motor. The traveling mechanism includes four pairs of traveling wheels mounted at the four corners of the frame, with the wheel surfaces of each pair of traveling wheels facing each other to form a clamping portion. The polishing wheels are mounted in the middle of the frame, and the axial direction of the polishing wheels is perpendicular to the axial direction of the traveling wheels so that the rotation direction of the polishing wheels is perpendicular to the traveling direction of the frame. The four pairs of traveling wheels include four small wheels and four large wheels. Four small wheels are mounted on the front and rear ends of the two side plates via short shafts, and four large wheels are mounted on long shafts directly below the four small wheels. The wheel surfaces of each large wheel and each small wheel face each other and form the clamping part, which facilitates the installation of the grinder on the busbar of the rigid contact network. The distance between the two small wheels located at the same end of the two side plates is adjustable. The operator adjusts the support shafts of the four small wheels to adjust the distance between the two small wheels located at the same end of the two side plates, so that the four small wheels and the four large wheels are matched and installed on the busbar of the rigid contact network. The wheel surfaces of each large wheel and each small wheel face each other to clamp the lower boss of the busbar, so that the grinder moves forward on the busbar by the rotation of the four large wheels. The advantages of this patent are: scientific design, reduced manual operation, reduced labor intensity, good safety, and improved grinding accuracy and efficiency. However, the patent still has some disadvantages: when installing the four small wheels on the busbar, the grinding machine must first be lifted to the busbar as a whole, and then the four small wheels are installed one by one through the shaft. This installation method is extremely inconvenient and time-consuming.

[0007] In summary, there is an urgent need to develop a new type of walking mechanism for rigid contact wire grinding machines to solve the aforementioned technical problems. Summary of the Invention

[0008] The purpose of this application is to overcome the shortcomings of the prior art and provide a walking mechanism that is reasonably designed, simple in structure and easy to use, suitable for a rigid contact wire surface treatment device.

[0009] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0010] A traveling mechanism for a rigid contact wire surface treatment device, the traveling mechanism being mounted on the frame of the rigid contact wire surface treatment device;

[0011] The walking mechanism includes a swing arm, walking wheels, a toggle assembly, and a locking assembly;

[0012] There are two swing arms, which are arranged opposite each other on both sides of the travel direction of the rigid contact line surface treatment device, and the two swing arms are hinged to the frame.

[0013] The walking wheels are in two sets, and the two sets of walking wheels are mounted opposite each other at the first ends of the two swing arms;

[0014] The actuating component is configured such that the two sets of traveling wheels can move relative to each other between the working position and the open position through the actuating component, so as to realize the assembly or disassembly between the rigid contact line surface treatment device and the busbar; during assembly, by manipulating the actuating component, the second ends of the two swing arms move outwards and away from each other, and at the same time, the two sets of traveling wheels installed at the first ends of the two swing arms move inwards and towards each other, so that the two sets of traveling wheels move from the open position to the working position;

[0015] The locking component is configured to lock the two sets of wheels in the working position after both sets of wheels are in the working position.

[0016] Furthermore, the actuation assembly includes a rotating shaft, an actuation frame, a shaped block, and a first elastic element;

[0017] The rotating shaft is rotatably mounted on the frame;

[0018] The actuating bracket is mounted on the rotating shaft;

[0019] The irregularly shaped block is disposed on the rotating shaft, and the width of the irregularly shaped block gradually changes from top to bottom. The irregularly shaped block is located between the second ends of the two swing arms.

[0020] The first elastic element is disposed between the second ends of the two swing arms so that the second ends of the two swing arms press against both sides of the irregular block in the width direction;

[0021] By operating the actuating frame, the rotating shaft is driven to rotate, allowing the irregularly shaped block to move between a first position and a second position. When the irregularly shaped block moves from the first position to the second position, the width of the irregularly shaped block between the second ends of the two swing arms increases, causing the second ends of the two swing arms to move outwards and away from each other, thus causing the two sets of traveling wheels to move from the open position to the working position. When the irregularly shaped block moves from the second position to the first position, the width of the irregularly shaped block between the second ends of the two swing arms decreases, causing the second ends of the two swing arms to move inwards and towards each other, thus causing the two sets of traveling wheels to move from the working position to the open position.

[0022] Furthermore, each of the two swing arms is provided with a roller at its second end, and the two rollers are pressed against both sides of the irregular block in the width direction under the elastic force of the first elastic element.

[0023] Furthermore, the locking component includes a locking block and a locking pin;

[0024] The locking block is mounted on the rotating shaft and can rotate with the rotating shaft. The locking block is provided with a bayonet.

[0025] The locking pin is slidably mounted on the frame;

[0026] When the irregular block moves to the second position and causes the two sets of walking wheels to move to the working position, the locking block rotates together with the rotating shaft to the locking position. At this time, one end of the locking pin can slide into the slot of the locking block to lock the locking block and the frame together, thereby locking the two sets of walking wheels in the working position.

[0027] Furthermore, the locking block is provided with a first positioning part. When the locking block is rotated to the locking position, the first positioning part just contacts the second positioning part provided on the frame, so that the locking block can be accurately rotated and positioned to the locking position.

[0028] Furthermore, the frame is provided with a pin hole, and the locking pin is slidably installed in the pin hole. When the locking block is rotated to the locked position, the pin hole is exactly opposite to the locking block's slot, and the first end of the locking pin can slide into the locking block's slot. The second end of the locking pin is linked to a handle installed on the frame. By controlling the handle, the locking pin is driven to slide back and forth in the pin hole, thereby realizing the locking or unlocking between the locking block and the frame.

[0029] A handle locking mechanism is provided between the handle and the frame. The handle locking mechanism enables the handle to be locked on the frame when it is moved to the third position. When the handle is in the third position, the locking block is in the locked position and the first end of the locking pin is inserted into the slot of the locking block.

[0030] Furthermore, the frame is provided with a floating plate that can float up and down. The floating plate is provided with a surface treatment mechanism for repairing the contact wire installed on the busbar. The floating plate can also float up and down between the highest and lowest positions under the control of a retraction mechanism. The retraction mechanism can drive the floating plate from the highest position to the lowest position and fix it in the lowest position. The retraction mechanism and the locking pin are linked together through the handle.

[0031] When the handle moves to the third position, the retraction mechanism controls the floating plate to move to the highest position and the first end of the locking pin is inserted into the slot of the locking block to lock the locking block and the frame. When the handle moves to a fourth position different from the third position, the retraction mechanism controls the floating plate to move to the lowest position and the first end of the locking pin slides out from the slot of the locking block to unlock the locking block and the frame.

[0032] Furthermore, the locking assembly also includes a pre-clamping block and a clamping element;

[0033] The pre-compression block is mounted on the rotating shaft and can rotate with the rotating shaft. The pre-compression block is provided with an arc-shaped groove.

[0034] The clamping member is slidably and elastically mounted on the frame, and the end of the clamping member facing the pre-clamping block is provided with an arc surface;

[0035] When the locking block is rotated to the locking position, the end of the clamping member with an arc surface is pressed into the arc surface groove of the pre-clamping block under the action of elastic force, so that the locking block can stay in the locking position.

[0036] Furthermore, the traveling mechanism also includes positioning wheels mounted on the frame. During operation, the positioning wheels act within the groove at the bottom of the busbar, and the traveling wheels act on the shoulders on both sides of the busbar. The positioning wheels and the traveling wheels cooperate to allow the frame to slide and clamp onto the busbar.

[0037] Furthermore, the traveling mechanism is a plurality of sets, and the plurality of sets of traveling mechanisms are arranged on the frame along the traveling direction of the rigid contact line surface treatment device.

[0038] Compared with the prior art, the beneficial effects of this application are:

[0039] 1. The linkage design in this application includes a toggle assembly and a swing arm. By manipulating the toggle frame in the toggle assembly, the irregular block can be driven to move, which in turn drives the two swing arms to move, ultimately enabling the two sets of traveling wheels to move between the working position and the open position. Moreover, the two sets of traveling wheels can be locked in the working position by the locking assembly. This structural design can facilitate the assembly or disassembly of the rigid contact line surface treatment device and the busbar.

[0040] 2. In this application, the two rollers contact the sides of the irregular block. When the irregular block moves, the rollers can roll close to the sides of the irregular block, which reduces the friction between the swing arm and the irregular block, making the operation smoother and improving the user experience of the product.

[0041] 3. In this application, a positioning part is provided between the locking block and the frame, which enables the locking block to rotate and position accurately and quickly to the locking position.

[0042] 4. This application adds a handle, a retraction mechanism, and a handle locking mechanism. The retraction mechanism is linked to the locking pin and controlled by the handle, which simplifies operation and facilitates the assembly and disassembly of the rigid contact wire surface treatment device. The handle locking mechanism can lock the handle to prevent it from swinging back and forth due to gravity or other factors during operation, thus affecting normal operation.

[0043] 5. A retraction mechanism is also designed for the floating plate, allowing it to be lowered to a certain position and then fixed, and also to be released and moved back to the corresponding position. This structural design facilitates the installation of the rigid contact line surface treatment device. Due to the elastic force, the outer circumference of the grinding wheel will press against the lower surface of the contact line during assembly, which is not convenient for the assembly of the rigid contact line surface treatment device with the busbar. By operating the retraction mechanism with the handle, the floating plate and the surface treatment mechanism on it can be lowered together, so that the surface treatment mechanism does not contact the contact line on the busbar, reducing the assembly difficulty and improving the assembly efficiency. After assembly, the floating plate and the grinding wheel on it can be released by operating the retraction mechanism with the handle, and the outer circumference of the surface treatment mechanism will press against the lower surface of the contact line for easy operation.

[0044] 6. In this application, the pre-clamping block is fixedly set relative to the locking block by a rotating shaft. By clamping the pre-clamping block with a clamping member, the locking block can be temporarily stopped in the locking position, which facilitates the subsequent locking process by inserting the locking pin into the bayonet. This structural design allows one person to complete the assembly and locking work of the rigid contact wire surface treatment device. Attached Figure Description

[0045] To make the advantages of this application more readily understood, the application briefly described above will be described in more detail with reference to the specific embodiments shown in the accompanying drawings. It is to be understood that these drawings depict only typical embodiments of this application and should not be considered as limiting its scope of protection. The application is described and explained with additional features and details through the drawings.

[0046] Figure 1 This is a three-dimensional schematic diagram of the rigid contact wire surface treatment device involved in this application;

[0047] Figure 2 This is a three-dimensional structural diagram of the walking mechanism of this application from one angle;

[0048] Figure 3 This is a three-dimensional structural diagram of the walking mechanism of this application from another angle;

[0049] Figure 4 This is a schematic diagram of the structure of the walking mechanism of this application installed on the busbar;

[0050] Figure 5 This is a schematic diagram of the connection structure between the floating plate and the frame in this application.

[0051] The attached figures are labeled as follows:

[0052] 1-Frame, 101-Support plate, 102-Connecting plate;

[0053] 2-Traveling mechanism, 201-Swing arm, 202-Traveling wheel, 203-Positioning wheel, 204-Rotating shaft, 205-Actuating frame, 206-Irregular block, 207-First elastic element, 208-Roller, 209-Locking block, 2010-Locking pin, 2011-Eccentric wheel, 2012-Pre-clamping block, 2013-Clamping element;

[0054] 3-Floating mechanism, 301-Floating plate, 302-Connecting block, 303-Second elastic element, 304-Slider, 305-Slide rail, 306-Optical axis, 307-Handle, 308-Rotating shaft, 309-Cam, 3010-Locking seat;

[0055] 4-Surface treatment mechanism;

[0056] 5-Busway. Detailed Implementation

[0057] In the following description, numerous specific details are set forth to provide a more thorough understanding of this application. However, it will be apparent to those skilled in the art that embodiments of this application may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with embodiments of this application.

[0058] To fully understand the embodiments of this application, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this application is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this application are described in detail below; however, other embodiments may be available in addition to these detailed descriptions.

[0059] In the description of this application, the term "A and / or B" means all possible combinations of A and B, such as only A, only B, or A and B. The terms "at least one A or B" or "at least one of A and B" have a similar meaning to "A and / or B" and can include only A, only B, or A and B. The singular terms "a" or "this" can also include plural forms. The terms "inner side," "outer side," "longitudinal," "lateral," "upper," "lower," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and do not require this application to be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0060] The embodiments of this application will be described in further detail below with reference to the accompanying drawings:

[0061] Example 1

[0062] like Figures 1 to 5 As shown, this embodiment provides a traveling mechanism 2 suitable for a rigid contact wire surface treatment device. The traveling mechanism 2 is mounted on the frame 1 of the rigid contact wire surface treatment device, enabling the rigid contact wire surface treatment device to slide on the busbar 5 by means of the traveling mechanism 2. The frame 1 is composed of two long plates and multiple short rods. The two long plates are arranged opposite each other, and the multiple short rods are distributed between the two long plates and fix the two long plates together to form a stable frame. A support plate 101 is also provided at the end of the frame 1. The support plate 101 is fixed between the two long plates, and the main function of the support plate 101 is to support the traveling mechanism 2.

[0063] In this embodiment, as Figures 1 to 5As shown, the traveling mechanism 2 includes a swing arm 201, traveling wheels 202, a toggle assembly, and a locking assembly. There are two swing arms 201, which are arranged opposite each other on both sides of the traveling direction of the rigid contact wire surface treatment device, and the middle of the two swing arms 201 is hinged to the support plate 101 of the frame 1. There are two sets of traveling wheels 202, with at least one wheel in each set, and the two sets of traveling wheels 202 are rotatably mounted opposite each other at the first ends of the two swing arms 201. The toggle assembly is configured such that the two sets of traveling wheels 202 can move relative to each other between a working position and an open position through the drive of the toggle assembly, thereby realizing the assembly or disassembly of the rigid contact wire surface treatment device and the busbar 5. When the rigid contact wire surface treatment device is assembled onto the busbar 5, the second ends of the two swing arms 201 are moved outwards and in opposite directions by operating the toggle assembly. Simultaneously, the two sets of traveling wheels 202 installed at the first ends of the two swing arms 201 are moved inwards and in opposite directions, causing the two sets of traveling wheels 202 to move from the open position to the working position. After the two sets of traveling wheels 202 are in the working position, the locking assembly is used to lock the two sets of traveling wheels 202 in the working position. When the rigid contact wire surface treatment device is removed from the busbar 5, the locking assembly is opened, releasing the lock on the two sets of traveling wheels 202. Then, by operating the toggle assembly, the second ends of the two swing arms 201 are moved inwards and in opposite directions. Simultaneously, the two sets of traveling wheels 202 installed at the first ends of the two swing arms 201 are moved outwards and in opposite directions, causing the two sets of traveling wheels 202 to move from the working position to the open position. After that, the rigid contact wire surface treatment device can be removed from the busbar 5.

[0064] The specific structure of the toggle assembly is as follows:

[0065] like Figure 2 and Figure 3As shown, the actuation assembly includes a rotating shaft 204, an actuation frame 205, a shaped block 206, and a first elastic element 207. The rotating shaft 204 is rotatably mounted between two long plates of the frame 1, and each end of the rotating shaft 204 is rotatably mounted on the corresponding long plate via a bearing. The actuation frame 205 is mounted on the rotating shaft 204, and the actuation frame 205 is C-shaped. Both ends of the actuation frame 205 are fixed to the rotating shaft 204. The actuation frame 205 is easy to hold and is mainly used to drive the rotating shaft 204 to rotate. The shaped block 206 is mounted on the rotating shaft 204, and the shaped block 206 is fixed to the middle of the rotating shaft 204 in a ring or semi-ring manner. The width of the shaped block 206 gradually changes from top to bottom. The shaped block 206 is located between the two swing arms 201. The main function of the irregular block 206 between the second ends is to change the distance between the second ends of the two swing arms 201 by changing its width along the axial direction of the rotation axis 204. The first elastic member 207 is disposed between the second ends of the two swing arms 201 so that the second ends of the two swing arms 201 are pressed against both sides of the irregular block 206 in the width direction. The first elastic member 207 is configured such that, when there is no external force intervention or interference from other components, the first elastic member 207 can swing the second ends of the two swing arms 201 around the hinge between the swing arms 201 and the support plate 101, so that the second ends of the two swing arms 201 move inward toward each other to open the two sets of walking wheels 202. Preferably, the first elastic member 207 is a spring. By operating the actuating frame 205, the rotating shaft 204 is driven to rotate, allowing the irregularly shaped block 206 to move between the first position and the second position. When the irregularly shaped block 206 moves from the first position to the second position, the width of the irregularly shaped block 206 between the second ends of the two swing arms 201 increases, causing the second ends of the two swing arms 201 to move outwards and away from each other, resulting in the two sets of traveling wheels 202 moving from the open position to the working position. When the irregularly shaped block 206 moves from the second position to the first position, the width of the irregularly shaped block 206 between the second ends of the two swing arms 201 decreases, causing the second ends of the two swing arms 201 to move inwards and towards each other, resulting in the two sets of traveling wheels 202 moving from the working position to the open position.

[0066] Preferably, each of the two swing arms 201 is further provided with a rotatable roller 208 at its second end. Under the elastic force of the first elastic element 207, the two rollers 208 are always pressed against both sides of the irregular block 206 in the width direction. By contacting the two sides of the irregular block 206 with the two rollers 208, the rollers 208 can roll close to the side of the irregular block 206 when the irregular block 206 moves. This reduces the friction between the swing arm 201 and the irregular block 206 when sliding, making the operation smoother and improving the user experience of the product.

[0067] The specific structure of the locking component is as follows:

[0068] like Figure 2 and Figure 3 As shown, the locking assembly includes a locking block 209 and a locking pin 2010. The locking block 209 is fixedly disposed near the end of the rotating shaft 204 and can rotate with the rotating shaft 204. The locking block 209 is provided with a slot. The locking pin 2010 is slidably mounted on the frame 1. A pin hole is provided on a long plate of the frame 1. The locking pin 2010 is slidably mounted in the pin hole. When the locking block 209 rotates to the locking position, the pin hole is exactly opposite to the slot of the locking block 209, and the first end of the locking pin 2010 can slide into the slot of the locking block 209. When the irregular block 206 moves to the second position and causes the two sets of traveling wheels 202 to move to the working position, the locking block 209 rotates with the rotating shaft 204 to the locking position. At this time, the first end of the locking pin 2010 can slide into the slot of the locking block 209 to lock the locking block 209 and the frame 1 together, thereby locking the two sets of traveling wheels 202 in the working position.

[0069] Preferably, the locking block 209 is provided with a first positioning part. When the locking block 209 rotates to the locked position, the first positioning part comes into contact with the second positioning part provided on the frame 1, so that the locking block 209 can be accurately rotated and positioned to the locked position. The first positioning part can be a first plane formed on the outer peripheral surface of the locking block 209, and the second positioning part can be a second plane formed on the support plate 101 of the frame 1. When the locking block 209 rotates to the locked position, the first plane and the second plane come into contact and act as a limit, so that the locking block 209 will not continue to rotate after rotating to the locked position.

[0070] In this embodiment, as Figure 1 and Figure 4 As shown, the traveling mechanism 2 also includes positioning wheels 203 mounted on the frame 1. The positioning wheels 203 are rotatable. During operation, the positioning wheels 203 act within the grooves at the bottom of the busbar 5, while the traveling wheels 202 act on the shoulders on both sides of the busbar 5. The positioning wheels 203 and traveling wheels 202 work together to allow the frame 1 to be slidably clamped onto the busbar 5. Each traveling mechanism 2 is provided with two positioning wheels 203, which are symmetrically arranged and act within two grooves at the bottom of the busbar 5.

[0071] In this embodiment, as Figure 1 As shown, the traveling mechanism 2 consists of multiple sets arranged on the frame 1 along the traveling direction of the rigid contact line surface treatment device. Preferably, there are two sets of traveling mechanisms 2, symmetrically arranged at both ends of the frame 1.

[0072] The technical effect of this embodiment is:

[0073] 1. In this embodiment, a toggle assembly and a swing arm 201 are linked together. By manipulating the toggle frame 205 in the toggle assembly, the irregular block 206 can be moved, which in turn drives the two swing arms 201 to move. Ultimately, the two sets of walking wheels 202 can move between the working position and the open position. Moreover, the two sets of walking wheels 202 can be locked in the working position by the locking assembly. This structural design can facilitate the assembly or disassembly of the rigid contact line surface treatment device and the busbar 5.

[0074] 2. In this embodiment, the two rollers 208 are in contact with the sides of the irregular block 206. When the irregular block 206 moves, the rollers 208 can roll close to the side of the irregular block 206, which can reduce the friction between the swing arm 201 and the irregular block 206, making the operation smoother and improving the user experience of the product.

[0075] 3. In this embodiment, a positioning part (i.e., a first positioning part and a second positioning part) is provided between the locking block 209 and the frame 1, which enables the locking block 209 to be accurately and quickly rotated and positioned to the locking position.

[0076] Example 2

[0077] This embodiment is a further improvement on Embodiment 1. The difference between this embodiment and Embodiment 1 is that a handle 307 and related mechanisms that are linked to the locking pin 2010 are added.

[0078] In this embodiment, as Figure 1 and Figure 5 As shown, a floating mechanism 3 is provided on the frame 1. The floating mechanism 3 mainly includes a floating plate 301 and related components for making the floating plate 301 float. The floating plate 301 is mounted on the frame 1 and can float up and down. A surface treatment mechanism 4 for repairing the contact wires installed on the busbar 5 is provided on the floating plate 301. The floating plate 301 is a plate with a similar long strip shape. The floating plate 301 is arranged longitudinally and along the traveling direction of the rigid contact wire grinder. A second elastic element 303 and a guide mechanism are provided between the floating plate 301 and the frame 1. The second elastic element 303 is used to realize the elastic connection between the floating plate 301 and the frame 1. The second elastic element 303 includes, but is not limited to, one or more of springs, sheet springs, or rubber parts with elastic deformation. Preferably, the second elastic element 303 is a spring. There are four second elastic elements 303, and the four second elastic elements 303 are evenly distributed longitudinally between the two connecting blocks 302 and the two connecting plates 102. The second elastic element 303 provides elastic force for the floating plate 301 to float up and down. The guide mechanism is used to ensure that the floating plate 301 can float up and down relative to the frame 1. The guide mechanism can adopt a sliding structure of slider 304 and slide rail 305 and / or a sliding structure of optical axis 306 and guide hole.

[0079] The specific structure of the shrink mechanism is as follows:

[0080] The floating plate 301 also floats up and down between the highest and lowest positions under the control of the retraction mechanism, and the retraction mechanism can drive the floating plate 301 from the highest position to the lowest position and fix it in the lowest position. Specifically, the retraction mechanism includes a rotating shaft 308 and a cam 309. The rotating shaft 308 is rotatably mounted on the frame 1, and the cam 309 is set on the rotating shaft 308. A third plane is provided on the outer peripheral surface of the cam 309. A perforation is provided on the floating plate 301. A fourth plane is provided on the bottom of the inner side of the perforation. The cam 309 is inserted into the perforation. A handle 307 is set at the end of the rotating shaft 308. By rotating the handle 307, the rotating shaft 308 is driven to rotate, which at the same time drives the cam 309 to rotate in the perforation, and causes the floating plate 301 to move down until the third plane of the cam 309 contacts and fits together with the fourth plane of the perforation. At this time, the floating plate 301 moves down to the lowest position, and under the upward elastic force, the floating plate 301 is fixed in the lowest position. The structural design for fixing the floating plate 301 at the lowest position is not limited to the above-mentioned method. Alternatively, the floating plate 301 can be fixed at the lowest position by fixing the handle 307 when the floating plate 301 is in the lowest position.

[0081] The linkage structure between the retraction mechanism, locking pin 2010, and handle 307 is as follows:

[0082] like Figure 2 and Figure 5As shown, the retraction mechanism and the locking pin 2010 are linked together via the handle 307. Specifically, an eccentric wheel 2011 is linked to the handle 307. Preferably, the eccentric wheel 2011 is fixedly mounted on the rotating shaft 308, and an arc track is formed on the eccentric wheel 2011. The center of the arc track is offset from the axis of the rotating shaft 308. A connecting post is fixedly mounted on the second end of the locking pin 2010, and the connecting post is slidably installed in the arc track. By rotating the handle 307, the rotating shaft 308 is rotated, and the eccentric wheel 2011 rotates with the rotating shaft 308. At this time, the arc track slides and the connecting post slides relative to it within the arc track, thereby changing the distance between the connecting post and the axis of the rotating shaft 308. This drives the locking pin 2010 to slide back and forth in the pin hole, thereby locking or unlocking the locking block 209 and the frame 1. When the handle 307 moves to the third position, the retraction mechanism controls the floating plate 301 to move to the highest position and the first end of the locking pin 2010 is inserted into the slot of the locking block 209 to achieve locking between the locking block 209 and the frame 1. When the handle 307 moves to the fourth position, which is different from the third position, the retraction mechanism controls the floating plate 301 to move to the lowest position and the first end of the locking pin 2010 slides out from the slot of the locking block 209 to achieve unlocking between the locking block 209 and the frame 1.

[0083] The specific structure of the locking mechanism of handle 307 is as follows:

[0084] like Figure 1 , Figure 2 and Figure 5 As shown, a handle 307 locking mechanism is provided between the handle 307 and the frame 1. The handle 307 locking mechanism ensures that the handle 307 can be locked on the frame 1 when it is moved to the third position. When the handle 307 is in the third position, the locking block 209 is in the locked position and the first end of the locking pin 2010 is inserted into the slot of the locking block 209.

[0085] The locking mechanism of handle 307 can be as follows: The locking mechanism of handle 307 includes a locking seat 3010 with a card interface and a first contact ball. The contact ball (including the first contact ball and the second contact ball), also called a positioning ball, ball plunger, or spring plunger, is a load device composed of a housing, spring, ball, or cylinder. Since it is an existing structure, its specific structure will not be described in detail. The locking seat 3010 is mounted on the frame 1, and at least one first contact ball is located at the opening of the card interface of the locking seat 3010. The handle 307 is oscillatingly connected to the end of the rotating shaft 308 via a hinge. When the handle 307 is rotated to the third position, the handle 307 swings around the hinge into the locking interface of the locking seat 3010 and is locked in the locking interface by the first ball, so as to realize the relative locking between the handle 307 and the frame 1. The locking seat 3010 is mainly used to store and lock the handle 307 to prevent the handle 307 from swinging back and forth due to gravity and other factors during operation, so as to affect normal operation. When the handle 307 needs to be used, the handle 307 can be taken out from the locking interface by slightly overcoming the elasticity of the first ball, which is convenient to use.

[0086] The locking mechanism of the handle 307 can also be: the locking mechanism of the handle 307 includes a second contact ball and a positioning slot, and there are at least two positioning slots. The second contact ball is disposed on the handle 307, and the positioning slots are disposed on the frame 1. The second contact ball can switch between multiple positioning slots so that the handle 307 can switch between different positions and be locked on the frame 1; or, the second contact ball is disposed on the frame 1, and the positioning slots are disposed on the handle 307. The second contact ball can switch between multiple positioning slots so that the handle 307 can switch between different positions and be locked on the frame 1.

[0087] The locking mechanism of handle 307 is not limited to the above-mentioned structural form, but can also be other structural forms that enable handle 307 to be locked after being rotated to the corresponding position.

[0088] Because the floating plate 301 is relatively long, in order to ensure the effect of the retraction mechanism driving the floating plate 301 to move downward and the ease of operation, this embodiment is designed with two handles 307 and two sets of retraction mechanisms, and the two handles 307 and two sets of retraction mechanisms are distributed relatively at both ends of the floating plate 301.

[0089] The technical effect of this embodiment is:

[0090] 1. This embodiment adds a handle 307, a retraction mechanism, and a handle 307 locking mechanism. The retraction mechanism is linked to the locking pin 2010 and controlled by the handle 307, which simplifies operation and facilitates the disassembly and assembly of the rigid contact wire surface treatment device. The handle 307 can be locked by the handle 307 locking mechanism to prevent the handle 307 from swinging back and forth due to gravity and other factors during operation, so as not to affect normal operation.

[0091] 2. A retraction mechanism is also designed for the floating plate 301, which allows the floating plate 301 to be lowered to a certain position and then fixed, and can also be released to move the floating plate 301 back to the corresponding position. This structural design facilitates the installation of the rigid contact line surface treatment device. Due to the elastic force, the outer circumferential surface of the grinding wheel will press against the lower surface of the contact line during assembly, which is not convenient for the assembly between the rigid contact line surface treatment device and the busbar 5. By operating the retraction mechanism through the handle 307, the floating plate 301 and the surface treatment mechanism 4 on it can be lowered together, so that the surface treatment mechanism 4 does not contact the contact line on the busbar 5, reducing the assembly difficulty and improving the assembly efficiency. After assembly, by operating the retraction mechanism through the handle 307, the floating plate 301 and the grinding wheel on it can be released, and the outer circumferential surface of the surface treatment mechanism 4 will press against the lower surface of the contact line for easy operation.

[0092] Example 3

[0093] This embodiment is a further improvement on Embodiment 1. The difference between this embodiment and Embodiment 1 is that a pre-compression block 2012 and a compression member 2013 are added to the locking assembly.

[0094] In this embodiment, as Figure 3 As shown, the locking assembly also includes a pre-pressing block 2012 and a pressing member 2013. The pre-pressing block 2012 is mounted on the rotating shaft 204 and can rotate with the rotating shaft 204. The pre-pressing block 2012 has an arc-shaped groove. The pressing member 2013 is slidably and elastically mounted on the frame 1, and the end of the pressing member 2013 facing the pre-pressing block 2012 has an arc surface. Preferably, the pressing member 2013 can adopt a ball-bearing structure, and the arc-shaped groove on the pre-pressing block 2012 cooperates with the ball-bearing. When the locking block 209 rotates to the locking position, the arc-shaped end of the pressing member 2013 is pressed into the arc-shaped groove of the pre-pressing block 2012 under the action of elastic force, so that the locking block 209 can stay in the locking position.

[0095] The design of the pre-clamping block 2012 and the clamping member 2013 only serves a pre-clamping function, which is mainly activated when the locking block 209 is in the locked position. The pre-clamping block 2012 and the clamping member 2013 adopt an arc surface contact and only clamp without locking. By adjusting the clamping force, after the pre-clamping block 2012 and the clamping member 2013 are clamped, a greater force can be applied to the actuating frame 205 to drive the pre-clamping block 2012 to move. However, without external force, the pre-clamping block 2012 will not move due to the gravity of the actuating frame 205 and related components.

[0096] The technical effect of this embodiment is:

[0097] The pre-clamping block 2012 is fixedly set relative to the locking block 209 via the rotating shaft 204. By clamping the pre-clamping block 2012 with the clamping member 2013, the locking block 209 can be temporarily stopped in the locked position, which facilitates the subsequent locking process of inserting the locking pin 2010 into the bayonet. This structural design allows one person to complete the assembly and locking work of the rigid contact wire surface treatment device.

[0098] The foregoing has shown and described the basic principles, main features, and advantages of this application. It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or basic characteristics of this application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0099] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A traveling mechanism suitable for a rigid contact wire surface treatment device, the traveling mechanism being mounted on the frame of the rigid contact wire surface treatment device, characterized in that, The walking mechanism includes a swing arm, walking wheels, a toggle assembly, and a locking assembly; There are two swing arms, which are arranged opposite each other on both sides of the travel direction of the rigid contact line surface treatment device, and the two swing arms are hinged to the frame. The walking wheels are in two sets, and the two sets of walking wheels are mounted opposite each other at the first ends of the two swing arms; The actuating component is configured such that the two sets of traveling wheels can move relative to each other between the working position and the open position through the actuating component, so as to realize the assembly or disassembly between the rigid contact line surface treatment device and the busbar; during assembly, by manipulating the actuating component, the second ends of the two swing arms move outwards and away from each other, and at the same time, the two sets of traveling wheels installed at the first ends of the two swing arms move inwards and towards each other, so that the two sets of traveling wheels move from the open position to the working position; The locking component is configured to lock the two sets of wheels in the working position after both sets of wheels are in the working position.

2. The traveling mechanism for a rigid contact wire surface treatment device according to claim 1, characterized in that, The actuation assembly includes a rotating shaft, an actuation frame, a shaped block, and a first elastic element; The rotating shaft is rotatably mounted on the frame; The actuating bracket is mounted on the rotating shaft; The irregularly shaped block is disposed on the rotating shaft, and the width of the irregularly shaped block gradually changes from top to bottom. The irregularly shaped block is located between the second ends of the two swing arms. The first elastic element is disposed between the second ends of the two swing arms so that the second ends of the two swing arms press against both sides of the irregular block in the width direction; By operating the actuating frame, the rotating shaft is driven to rotate, allowing the irregularly shaped block to move between a first position and a second position. When the irregularly shaped block moves from the first position to the second position, the width of the irregularly shaped block between the second ends of the two swing arms increases, causing the second ends of the two swing arms to move outwards and away from each other, thus causing the two sets of traveling wheels to move from the open position to the working position. When the irregularly shaped block moves from the second position to the first position, the width of the irregularly shaped block between the second ends of the two swing arms decreases, causing the second ends of the two swing arms to move inwards and towards each other, thus causing the two sets of traveling wheels to move from the working position to the open position.

3. The traveling mechanism for a rigid contact wire surface treatment device according to claim 2, characterized in that, Each of the two swing arms is also provided with a roller at its second end, and the two rollers are pressed against both sides of the irregular block in the width direction under the elastic force of the first elastic element.

4. The traveling mechanism for a rigid contact wire surface treatment device according to claim 2, characterized in that, The locking component includes a locking block and a locking pin; The locking block is mounted on the rotating shaft and can rotate with the rotating shaft. The locking block is provided with a bayonet. The locking pin is slidably mounted on the frame; When the irregular block moves to the second position and causes the two sets of walking wheels to move to the working position, the locking block rotates together with the rotating shaft to the locking position. At this time, one end of the locking pin can slide into the slot of the locking block to lock the locking block and the frame together, thereby locking the two sets of walking wheels in the working position.

5. The traveling mechanism for a rigid contact wire surface treatment device according to claim 4, characterized in that, The locking block is provided with a first positioning part. When the locking block is rotated to the locking position, the first positioning part just contacts the second positioning part provided on the frame, so that the locking block can be accurately rotated and positioned to the locking position.

6. The traveling mechanism for a rigid contact wire surface treatment device according to claim 4, characterized in that, The frame is provided with a pin hole, and the locking pin is slidably installed in the pin hole. When the locking block is rotated to the locking position, the pin hole is exactly opposite to the locking block's slot, and the first end of the locking pin can slide into the locking block's slot. The second end of the locking pin is linked to a handle installed on the frame. By controlling the handle, the locking pin is driven to slide back and forth in the pin hole, thereby realizing the locking or unlocking between the locking block and the frame. A handle locking mechanism is provided between the handle and the frame. The handle locking mechanism enables the handle to be locked on the frame when it is moved to the third position. When the handle is in the third position, the locking block is in the locked position and the first end of the locking pin is inserted into the slot of the locking block.

7. The traveling mechanism for a rigid contact wire surface treatment device according to claim 6, characterized in that, The frame is equipped with a floating plate that can float up and down. The floating plate is equipped with a surface treatment mechanism for repairing the contact wires installed on the busbar. The floating plate can also float up and down between the highest and lowest positions under the control of a retraction mechanism. The retraction mechanism can drive the floating plate from the highest position to the lowest position and fix it in the lowest position. The retraction mechanism and the locking pin are linked together through the handle. When the handle is moved to the third position, the retraction mechanism controls the floating plate to move to the highest position and the first end of the locking pin is inserted into the slot of the locking block to lock the locking block and the frame. When the handle is rotated to a fourth position different from the third position, the retraction mechanism controls the floating plate to move to the lowest position and the first end of the locking pin slides out from the slot of the locking block to unlock the locking block and the frame.

8. The traveling mechanism for a rigid contact wire surface treatment device according to claim 4, characterized in that, The locking assembly also includes a pre-clamping block and a clamping element; The pre-compression block is mounted on the rotating shaft and can rotate with the rotating shaft. The pre-compression block is provided with an arc-shaped groove. The clamping member is slidably and elastically mounted on the frame, and the end of the clamping member facing the pre-clamping block is provided with an arc surface; When the locking block is rotated to the locking position, the end of the clamping member with an arc surface is pressed into the arc surface groove of the pre-clamping block under the action of elastic force, so that the locking block can stay in the locking position.

9. The traveling mechanism for a rigid contact wire surface treatment device according to claim 1, characterized in that, It also includes positioning wheels mounted on the frame. During operation, the positioning wheels act within the grooves at the bottom of the busbar, and the traveling wheels act on the shoulders on both sides of the busbar. The positioning wheels and the traveling wheels work together to allow the frame to slide and clamp onto the busbar.

10. The traveling mechanism for a rigid contact wire surface treatment device according to claim 1, characterized in that, The walking mechanism is in multiple sets, and these multiple sets of walking mechanisms are arranged on the frame along the traveling direction of the rigid contact line surface treatment device.

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