Crane current collector with crank arm with high flexibility and use method

Abstract

The invention relates to the technical field of current collectors of coal conveying cranes, in particular to a crane current collector with a crank arm high in flexibility and a using method.The crane current collector comprises a base component and a crank arm component rotationally installed on the base component, and a blocking piece is detachably installed at a current collecting head at the upper end of the crank arm component; and the blocking piece is used for keeping a cable above the current collection head in contact with the current collection head. The connecting lever component and the base component are rotationally connected through the bearing, so that the flexibility and the reliability of the connecting lever component in the current collector are remarkably enhanced, faults caused by mechanical wear are effectively reduced, and the problem that a current collecting head carbon brush is separated from a cable and cannot be reset due to the fact that the connecting lever is jammed is solved. In addition, the design of the blocking piece is diversified, the blocking piece can adapt to cables of different specifications and shapes, greater compatibility is provided, the universality of the current collector is enhanced, and the blocking piece adopts a detachable connection mode, so that the maintenance and replacement processes are more convenient and faster.

Description

Technical Field

[0001] The present invention relates to the technical field of coal conveying crane current collectors, and in particular to a crane current collector with a strong crank arm flexibility and a use method thereof. Background Art

[0002] In modern industrial production, coal crane collectors are key power transmission equipment, and their performance stability and reliability are crucial to ensuring production safety and efficiency. However, the existing coal crane collectors have some technical problems that need to be solved when running for a long time, especially in harsh outdoor environments.

[0003] First, the connection between the existing collector arm and the base is usually a plug-in method of a rotating shaft and a hole. After long-term use, especially in outdoor environments, this design is prone to wear and rust due to long-term friction and wind and sun exposure. Wear will reduce the flexibility of the connection, while rust may further aggravate the jamming phenomenon and affect the normal movement of the collector.

[0004] Secondly, the rust problem not only reduces the mechanical strength of the components, but also may cause the connection to become stuck, affecting the normal movement of the collector. The rusted components are not flexible when rotating, and sometimes become stuck, causing the crane collector slider to be unable to return to its original position in time after being separated from the slide line, thus causing power outages. Power outages not only affect the continuous operation of the equipment, but may also cause shocks to the electrical system due to sudden restart after power outages, increasing the risk of short circuits. Summary of the invention

[0005] In view of the problems existing in the above-mentioned existing crane collectors with strong crank arm flexibility, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a crane collector with a flexible crank arm, the purpose of which is to reduce the impact of the external environment on the collector, improve its stability and reliability in harsh environments, and allow the cable to automatically fall back into the collector head.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a crane collector with a highly flexible crank arm, comprising a base component and a crank arm component rotatably mounted on the base component, and a blocking member is detachably mounted at the collector head at the upper end of the crank arm component, and the blocking member is used to keep the cable above the collector head in contact with the collector head.

[0008] As a preferred solution of the crane collector with strong crank arm flexibility described in the present invention, the base component and the crank arm component are rotatably connected by a bearing, and two symmetrical limit rods are arranged on the base component to limit the rotation angle of the crank arm component.

[0009] As a preferred solution of the crane collector with strong crank arm flexibility described in the present invention, a closed annular space is formed between the blocking member and the collector head, and the cable is located in the annular space.

[0010] As a preferred solution of the crane collector with strong crank arm flexibility described in the present invention, the collector head includes a bottom shell and a carbon brush installed on the bottom shell, and the carbon brush is in contact with the lower surface of the cable.

[0011] As a preferred solution of the crane collector with highly flexible crank arms described in the present invention, the blocking member is divided into a straight type or a curved U-shape, and is detachable from the bottom shell by means of snap connection, screw connection, or sliding groove.

[0012] As a preferred solution of the crane collector with strong crank arm flexibility described in the present invention, the base component includes a bottom plate and insulating bottles installed at the four corners of the bottom plate, and a mounting plate is fixedly connected under the two insulating bottles on the same side, and the mounting plate is fixed on the top of the crane.

[0013] As a preferred solution of the crane collector with strong crank arm flexibility described in the present invention, the crank arm component includes a first bearing installed on the outside of the column on the base plate, and a rotating plate is installed on the outside of the first bearing, one end of the rotating plate is hinged to the lower end of the connecting rod, and the upper end of the connecting rod is hinged to the lower surface of the bottom shell, and a spring is arranged between the connecting rod and the other end of the rotating plate.

[0014] As a preferred solution of the crane collector with strong crank arm flexibility described in the present invention, the rotating plate is divided into a hinged part, a rotating part and a hooking part in sequence, wherein the rotating part is installed on the outer wall of the first bearing, the hinged part is hinged to the connecting rod, the hooking part is arranged in a right-angled triangle shape, and a row of multiple hanging holes is arranged on the hypotenuse for hooking one end of the spring.

[0015] As a preferred solution of the crane collector with strong crank arm flexibility described in the present invention, the connecting rod is arranged obliquely, and a row of multiple hanging holes is arranged on its side for hooking one end of the spring, and the connecting rod, spring and rotating plate form an obtuse triangle.

[0016] In order to solve the above technical problems, the present invention provides the following technical solutions: a method for using a crane collector with a flexible crank arm, comprising:

[0017] Fix the four insulating bottles on the two mounting plates respectively, and install the bottom plate with the side with the columns facing upwards above the four insulating bottles;

[0018] Install the first bearing into the rotating part of the rotating plate, and fix the rotating plate on the column through the first bearing;

[0019] One end of the connecting rod is hinged to the bottom shell of the collector head, and the other end is connected to the hinged part of the rotating plate;

[0020] On the basis of the above, install the two ends of the spring, hang them in the hook part of the rotating plate and the hanging hole of the connecting rod respectively, and adjust the inclination of the connecting rod according to the tightness of the spring;

[0021] A blocking member is installed above the bottom shell of the collector head.

[0022] Beneficial effects of the invention: This patent significantly enhances the flexibility and reliability of the crank arm component in the collector by using a bearing to rotate the crank arm component and the base component. This design effectively reduces failures caused by mechanical wear and avoids the problem of the collector head carbon brush being detached from the cable and unable to be reset due to the crank arm being stuck, thereby reducing the risk of power outages and short circuits and ensuring the safe and stable operation of the equipment. In addition, the design of the blocking member is diverse and can adapt to cables of different specifications and shapes, providing greater compatibility and enhancing the universality of the collector. At the same time, the blocking member adopts a detachable connection method, making the maintenance and replacement process more convenient and quick, reducing maintenance costs and downtime.

[0023] When the cable is separated from the carbon brush, the design of the blocking piece can make the cable automatically fall back into the collector head, thereby improving the continuity and reliability of power transmission. The improved design can better adapt to outdoor environments, such as wind, sun, and rust, thereby improving the durability of the equipment, effectively reducing the downtime caused by equipment failure, and improving overall work efficiency. Since the equipment runs more stably, the required maintenance workload is reduced accordingly, which reduces the workload of maintenance personnel. In addition, by improving the stability of the collector and reducing the occurrence of failures, this patent helps to extend the service life of related equipment, improve the safety of equipment operation, and reduce the possibility of accidents. Ultimately, by improving work efficiency, reducing maintenance costs, and extending the service life of equipment, this patent brings significant economic benefits to the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 The overall structure of the crane collector with a flexible crank arm is shown in the figure. Figure 1 .

[0026] Figure 2The overall structure of the crane collector with a flexible crank arm is shown in FIG. Figure 2 .

[0027] Figure 3 It is a side view structural schematic diagram of the crane collector with a strong crank arm flexibility of the present invention.

[0028] Figure 4 The structure of the collector head and the blocking member of the crane collector with strong turning arm flexibility of the present invention is shown in FIG. Figure 1 .

[0029] Figure 5 The structure of the collector head and the blocking member of the crane collector with strong turning arm flexibility of the present invention is shown in FIG. Figure 2 .

[0030] Figure 6 The structure of the collector head and the blocking member of the crane collector with strong turning arm flexibility of the present invention is shown in FIG. Figure 3 .

[0031] Figure 7 The structure of the collector head and the blocking member of the crane collector with strong turning arm flexibility of the present invention is shown in FIG. Figure 4 .

[0032] In the figure:

[0033] 100, base component; 101, bottom plate; 102, insulation bottle; 103, mounting plate; 104, column;

[0034] 200, crank arm component; 201, limit rod; 202, first bearing; 203, rotating plate; 203a, hinged part; 203b, rotating part; 203c, hooking part; 204, connecting rod; 205, spring; 206, hanging hole;

[0035] 300, collector head; 301, bottom shell; 302, carbon brush;

[0036] 400. Blocking piece. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0040] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0041] Example 1

[0042] Reference Figure 1-Figure 4 , which is the first embodiment of the present invention, provides a crane collector with a flexible crank arm, including a base component 100 and a crank arm component 200 rotatably installed on the base component 100, and a blocking member 400 is detachably installed at the collector head 300 at the upper end of the crank arm component 200, and the blocking member 400 is used to keep the cables above the collector head 300 in contact with the collector head 300.

[0043] The base component 100 and the crank arm component 200 are rotatably connected by a bearing, and two symmetrical limit rods 201 are provided on the base component 100 to limit the rotation angle of the crank arm component 200. A closed annular space is formed between the blocking member 400 and the collector head 300, and the cable is located in the annular space. The collector head 300 includes a bottom shell 301 and a carbon brush 302 mounted on the bottom shell 301, and the carbon brush 302 contacts the lower surface of the cable.

[0044] In the design of the crane collector, the connection method between the base component 100 and the crank arm component 200 is crucial to the performance of the entire system. In this design, the base component 100 and the crank arm component 200 are rotatably connected by a bearing. This design greatly improves the flexibility and reliability of the crank arm component 200, enabling it to better cooperate with the cable.

[0045] Two symmetrical limit rods 201 are arranged on the base component 100. The function of the two limit rods 201 is to limit the rotation angle of the crank arm component 200. This design can prevent the crank arm component 200 from excessive rotation, thereby avoiding possible mechanical failures and safety accidents. The setting of the limit rods 201 ensures that the crank arm component 200 rotates within a safe range, thereby enhancing the stability and durability of the entire collector.

[0046] Furthermore, a closed annular space is formed between the blocking member 400 and the collector head 300, and the cable is located in the annular space. This design allows the cable to be firmly confined inside the collector, reducing the swing and vibration of the cable during the operation of the crane. The collector head 300 includes a bottom shell 301 and a carbon brush 302 installed on the bottom shell 301. The carbon brush 302 contacts the lower surface of the cable. This contact method ensures a good electrical connection and is also convenient for maintenance and replacement of the carbon brush 302. By changing the contact structure, the carbon brush 302 and the cable are in planar contact, which increases the contact area, thereby improving the contact performance and stability, reducing wear and extending the service life.

[0047] In the present application, the combined effect of the bearing rotation and the blocking member 400 can make the cable automatically fall back into the collector head 300, and this effect is particularly prominent. When the cable is separated from the carbon brush 302 of the bottom shell 301 of the collector head 300 due to the movement of the crane or other reasons, the existence of the blocking member 400 ensures that the cable will not completely separate from the bottom shell 301. As the crane continues to move, the cable, under the guidance of the blocking member 400, cooperates with the rotatable rotating plate 203, and can swing back and fall back onto the carbon brush 302 to achieve automatic power connection. This innovative design significantly improves the reliability and safety of the collector, reduces the risk of power outages due to poor contact, and also reduces maintenance costs and workload.

[0048] The base component 100 includes a bottom plate 101 and insulating bottles 102 installed at four corners of the bottom plate 101 . A mounting plate 103 is fixedly connected below two insulating bottles 102 on the same side, and the mounting plate 103 is fixed on the top of the crane.

[0049] It should be noted that the core part of the base component 100 is the bottom plate 101, which provides a support and fixing foundation for the entire collector. The bottom plate 101 is usually made of solid materials to ensure stability and durability during the operation of the crane. Insulating bottles 102 are installed at the four corners of the bottom plate 101. The main function of the insulating bottles 102 is to provide electrical insulation, prevent current from leaking through the bottom plate 101, and ensure the electrical safety of the collector. These insulating bottles 102 are usually made of high-performance insulating materials, such as ceramics or special plastics, to provide good insulation performance. A mounting plate 103 is fixedly connected below the two insulating bottles 102 on the same side. The function of this mounting plate 103 is to fix the insulating bottle 102 and the bottom plate 101 together, and transfer the weight and force of the collector to the top of the crane. The design of the mounting plate 103 needs to take into account strength and stability to ensure that it will not loosen or break during the operation of the crane. The mounting plate 103 is fixed to the top of the crane by an appropriate fixing method (such as bolts, welding or clamping devices). This fixing method needs to ensure that the connection between the mounting plate 103 and the top of the crane is firm and reliable to withstand various forces generated by the collector during operation, such as gravity, vibration and impact.

[0050] The base component 100 includes a bottom plate 101 and insulating bottles 102 installed at the four corners of the bottom plate 101. This layout provides a stable support foundation for the entire collector, and the use of the insulating bottles 102 ensures electrical safety and prevents accidental leakage of current. A mounting plate 103 is fixedly connected below the two insulating bottles 102 on the same side, and the mounting plate 103 is fixed on the top of the crane. Such a structural design enables the base component 100 to be firmly installed on the crane and withstand various stresses during the operation of the crane.

[0051] In general, the design and installation of the base member 100 provides a stable and safe foundation for the crane current collector. By installing the insulating bottles 102 at the four corners of the bottom plate 101 and fixing the insulating bottles 102 and the bottom plate 101 on the top of the crane using the mounting plate 103, the stability and safety of the current collector under various working conditions can be ensured. This design helps to improve the performance and reliability of the current collector and reduce the risk of failures and accidents caused by improper installation.

[0052] The crank arm component 200 includes a first bearing 202 mounted on the outer side of the column 104 on the bottom plate 101, and a rotating plate 203 is mounted on the outer side of the first bearing 202. One end of the rotating plate 203 is hinged to the lower end of the connecting rod 204, and the upper end of the connecting rod 204 is hinged to the lower surface of the bottom shell 301. A spring 205 is arranged between the connecting rod 204 and the other end of the rotating plate 203. The rotating plate 203 is divided into a hinged portion 203a, a rotating portion 203b and a hooking portion 203c in sequence, wherein the rotating portion 203b is mounted on the outer wall of the first bearing 202, the hinged portion 203a is hinged to the connecting rod 204, and the hooking portion 203c is arranged in a right triangle shape, and a row of multiple hanging holes 206 are arranged on the hypotenuse for hooking one end of the spring 205. The connecting rod 204 is arranged at an angle, and a row of multiple hanging holes 206 are arranged on its side for hooking one end of the spring 205. The connecting rod 204, the spring 205 and the rotating plate 203 form an obtuse triangle.

[0053] It should be noted that the first bearing 202 is an important component in the crank arm assembly 200 and is installed on the outside of the column 104 on the base plate 101. The function of the first bearing 202 is to support the rotating plate 203 and allow the rotating plate 203 to rotate freely on its outside.

[0054] Rotating plate 203: Located on the outside of the first bearing 202, rotating plate 203 is another key component. Its design is divided into three parts: 1) Hinged portion 203a: This is one end of the rotating plate 203, which is connected to the lower end of the connecting rod 204 by hinged connection, allowing the rotating plate 203 to rotate around this point. 2) Rotating portion 203b: This is the central part of the rotating plate 203, installed on the outer wall of the first bearing 202, and is the core area of ​​the rotating plate 203 rotation. 3) Hooking portion 203c: This is the other end of the rotating plate 203, designed in the shape of a right triangle, with a plurality of hanging holes 206 on the hypotenuse. These hanging holes 206 are used to hang one end of the spring 205 to facilitate the installation and adjustment of the spring 205.

[0055] Connecting rod 204: This is a component that connects the rotating plate 203 and the bottom shell 301 of the collector head 300. Its upper end is hinged to the lower surface of the bottom shell 301. The design of the connecting rod 204 allows it to be tilted so that with the cooperation of the spring 205, the tilt angle can be controlled so that the collector head 300 at its upper end can always be in contact with the cable and cooperate with the line of the cable to adaptively adjust the angle of the rotating plate 203 at the lower end so that the crank arm component 200 can adapt to the cable as a whole.

[0056] Spring 205: A spring 205 is arranged between the connecting rod 204 and the rotating plate 203. Its function is to provide necessary elastic force to maintain appropriate tension between the rotating plate 203 and the connecting rod 204. One end of the spring 205 is hung in the hanging hole 206 of the hook portion 203c of the rotating plate 203, and the other end is hung in the side hanging hole 206 of the connecting rod 204. A row of multiple hanging holes 206 are arranged at both ends, so that the tightness of the spring 205 can be automatically adjusted according to actual conditions, and then the inclination angle of the connecting rod 204 can be adjusted. At the same time, the connecting rod 204 cooperates to push the collector head 300 against the lower surface of the cable to keep it in contact.

[0057] The connecting rod 204, the spring 205 and the rotating plate 203 together form an obtuse triangle structure. This design helps to maintain the stability of the connecting rod 204 and ensures that the spring 205 can evenly distribute the force to maintain the collector head 300 always in contact with the cable.

[0058] In general, this design achieves flexibility and stability of the crane collector arm through precise component layout and reasonable mechanical structure, thereby improving the reliability of contact between the collector head 300 and the cable and reducing the risk of power outages due to poor contact.

[0059] During the assembly process, firstly, the four insulating bottles 102 need to be fixed on the two mounting plates 103 respectively to ensure their stability and safety. Next, the side of the base plate 101 with the column 104 is facing upward and is accurately placed above the four insulating bottles 102 to ensure that each insulating bottle 102 is located at the four corners of the lower surface of the base plate 101 to provide good support. Subsequently, the first bearing 202 is installed in the rotating part 203b of the rotating plate 203 to ensure that it can rotate smoothly. Next, the rotating plate 203 is fixed to the column 104 by the first bearing 202 so that it can rotate freely on the column 104. Thereafter, one end of the connecting rod 204 is hinged to the bottom shell 301 of the collector head 300, and the other end is connected to the hinged part 203a of the rotating plate 203 to form a flexible motion system. On this basis, the two ends of the spring 205 are installed and hung in the hook portion 203c of the rotating plate 203 and the hanging hole 206 of the connecting rod 204 respectively. The inclination of the connecting rod 204 is adjusted according to the tightness of the spring 205 to ensure that the connecting rod 204 can effectively fit the collector head 300 to the lower surface of the cable to achieve the best power connection effect. Finally, a blocking member 400 is installed above the bottom shell 301 of the collector head 300 to prevent accidental detachment.

[0060] In actual use, when the cable is separated from the carbon brush 302 on the bottom shell 301 of the collector head 300, the cable as a whole will not be completely separated from the bottom shell 301 due to the existence of the blocking member 400. As the device continues to move, the cable will swing back and fall back onto the carbon brush 302 under the guidance of the blocking member 400 and with the cooperation of the rotatable rotating plate 203, so as to achieve power reconnection. This design effectively improves the reliability of the equipment, ensures the continuous supply of electricity, and reduces the risk of downtime due to poor contact.

[0061] Example 2

[0062] Reference Figure 1-3 as well as Figure 7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that the blocking member 400 is divided into a straight type or a curved U-shape, and is detachable from the bottom shell 301 by means of snap connection, screw connection, or sliding groove.

[0063] Specifically, in the design of the crane collector, the shape and connection method of the blocking member 400 are critical to ensure the continuous contact between the cable and the carbon brush 302 in the collector head 300. When the blocking member 400 is designed to be linear, it is rectangular as a whole and is detachably connected to the bottom shell 301 of the collector head 300 by means of snap connection, screw connection or sliding groove. This design has significant advantages:

[0064] Direct sealing: The linear blocking member 400 directly seals the upper surface of the U-shaped bottom shell 301. This design can more effectively seal the cable in the U-shaped bottom shell 301. This sealing effect ensures that the cable maintains contact with the carbon brush 302 in the collector head 300, thereby maintaining the continuity of power transmission.

[0065] Stable contact: The carbon brush 302 is a sliding contact body used to conduct the incoming current. It has good electrical and thermal conductivity and lubrication properties, and has a certain mechanical strength and commutation spark instinct. In the collector head 300, the contact between the carbon brush 302 and the lower surface of the cable is the key point of power transmission. The design of the linear blocking member 400 helps to maintain the stability of this contact, thereby improving the reliability of power transmission.

[0066] Easy maintenance: The detachable connection allows for quick replacement or maintenance of the blocking member 400 and the collector head 300, which helps reduce downtime and improves overall maintenance efficiency. This connection also facilitates adjustment or replacement of the blocking member 400 without disassembling the entire collector.

[0067] Automatic reset mechanism: When the cable is separated from the bottom shell 301 and the carbon brush 302 of the collector head 300 for some reason, the linear blocking member 400 can prevent the cable from completely separating from the bottom shell 301. As the crane continues to move, the cable, under the guidance of the blocking member 400 and in conjunction with the rotatable rotating plate 203, can swing back and fall back onto the carbon brush 302 to achieve automatic power connection. This mechanism significantly improves the adaptability and reliability of the collector and reduces the risk of power failure due to poor contact.

[0068] In summary, the design of the linear blocking member 400, combined with the bearing rotation connection method, not only improves the stability of the contact between the cable and the carbon brush 302 in the collector head 300, but also increases the adaptability and maintenance convenience of the device. This design plays an important role in improving the continuity and reliability of power transmission.

[0069] The remaining structures are the same as those of Example 1.

[0070] Example 3

[0071] Reference Figure 1-Figure 6 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that the blocking member 400 is divided into a straight type or a curved U-shape, and is detachable from the bottom shell 301 by means of snap connection, screw connection, or sliding groove.

[0072] Specifically, in the design of the crane collector, the shape and connection method of the blocking member 400 are critical to ensure the continuous contact between the cable and the carbon brush 302 in the collector head 300. When the blocking member 400 is designed as a curved U-shape, this design brings a series of significant advantages:

[0073] Adaptability: The design of the U-shaped blocking member 400 leaves a larger space, which can better accommodate cables of various specifications. This design provides greater compatibility, allowing the collector to adapt to a variety of cable sizes, thereby enhancing its applicability in different application scenarios.

[0074] Flexibility: The cable does not need to be fixed too firmly, which ensures the sliding between the cable and the collector head 300. This moderate fixing method allows the cable to have a certain movement space when subjected to force, thereby reducing the wear of the cable and maintaining good electrical contact.

[0075] Ring space formation: The further U-shaped design can be matched with the non-U-shaped collector head 300 shell bottom to form a closed ring space and accommodate the cable in the ring space. This structure helps to keep the cable in a stable position when the crane moves, reducing the risk of power outage caused by cable swinging or falling off.

[0076] Removable connection: The blocking member 400 is detachably connected to the bottom shell 301 of the collector head 300 by means of snap-on, screw-on or sliding grooves. This connection method is easy to install and maintain, and improves the maintainability and upgradeability of the collector. The detachable design allows for quick replacement or maintenance of the blocking member 400 and the collector head 300, reducing downtime and improving maintenance efficiency.

[0077] The synergistic effect between the bearing rotation and the blocking member 400 allows the cable to automatically fall back into the collector head 300, which significantly improves the performance and reliability of the collector. The bearing rotation provides the necessary flexibility, while the U-shaped blocking member 400 ensures that the cable will not fall off the collector head 300 when the collector moves or is subjected to force. This design plays an important role in improving the continuity and reliability of power transmission, especially in dynamic environments, such as mobile crane applications.

[0078] In addition, this design also takes into account the convenience of maintenance. The detachable connection mode allows the blocking member 400 to be quickly adjusted or replaced without disassembling the entire collector, thereby reducing maintenance costs and workload. This design concept reflects the emphasis on maintenance friendliness in modern industrial design and helps to improve overall operating efficiency and economic benefits.

[0079] The remaining structure is the same as that of Example 2.

[0080] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only several embodiments are described in detail in this disclosure, it should be easily understood by the personnel referring to this disclosure that many modifications are possible (for example, the size, scale, structure, shape and ratio of various elements, and parameter values ​​(for example, temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method step can be changed or reordered according to the alternative embodiment. Any "device plus function" clause is intended to cover the structure of the execution of the function described in this article, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiment. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0081] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0082] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A crane collector with a flexible crank arm, characterized by: The invention comprises a base component (100) and a crank arm component (200) rotatably mounted on the base component (100), and a blocking member (400) is detachably mounted on a collector head (300) at the upper end of the crank arm component (200), wherein the blocking member (400) is used to keep the cables above the collector head (300) in contact with the collector head (300).

2. The crane collector with high crank arm flexibility according to claim 1, characterized in that: The base component (100) and the crank arm component (200) are rotatably connected by means of a bearing, and two symmetrical limit rods (201) are provided on the base component (100) for limiting the rotation angle of the crank arm component (200).

3. The crane collector with high crank arm flexibility according to claim 1 or 2, characterized in that: A closed annular space is formed between the blocking member (400) and the collector head (300), and the cable is located in the annular space.

4. The crane collector with high crank arm flexibility according to claim 1, characterized in that: The collector head (300) comprises a bottom shell (301) and a carbon brush (302) mounted on the bottom shell (301), wherein the carbon brush (302) contacts the lower surface of the cable.

5. The crane collector with high crank arm flexibility according to claim 4, characterized in that: The blocking member (400) is of a straight type or a curved U-shape, and is detachably connected to the bottom shell (301) by means of a snap connection, a screw connection, or a sliding groove.

6. The crane collector with high crank arm flexibility according to claim 5, characterized in that: The base component (100) comprises a bottom plate (101) and insulating bottles (102) mounted at four corners of the bottom plate (101); a mounting plate (103) is fixedly connected below two insulating bottles (102) on the same side, and the mounting plate (103) is fixed on the top of the crane.

7. The crane collector with high crank arm flexibility according to claim 6, characterized in that: The crank arm component (200) comprises a first bearing (202) mounted on the outside of a column (104) on the base plate (101); a rotating plate (203) is mounted on the outside of the first bearing (202); one end of the rotating plate (203) is hinged to the lower end of a connecting rod (204); the upper end of the connecting rod (204) is hinged to the lower surface of the base shell (301); and a spring (205) is provided between the connecting rod (204) and the other end of the rotating plate (203).

8. The crane collector with high crank arm flexibility according to claim 7, characterized in that: The rotating plate (203) is divided into a hinged portion (203a), a rotating portion (203b) and a hooking portion (203c) in sequence, wherein the rotating portion (203b) is installed on the outer wall of the first bearing (202), the hinged portion (203a) is hinged to the connecting rod (204), and the hooking portion (203c) is arranged in a right-angled triangle shape, and a row of multiple hanging holes (206) are arranged on the hypotenuse for hooking one end of the spring (205).

9. The crane collector with high crank arm flexibility according to claim 7, characterized in that: The connecting rod (204) is arranged obliquely, and a row of multiple hanging holes (206) are arranged on its side for hooking one end of the spring (205). The connecting rod (204), the spring (205) and the rotating plate (203) form an obtuse triangle.

10. A method for using a crane collector with a flexible crank arm, characterized in that: A crane collector with a flexible crank arm comprising any one of claims 1 to 9, and Fix the four insulating bottles on the two mounting plates respectively, and install the bottom plate with the side of the column facing upwards above the four insulating bottles; Install the first bearing into the rotating part of the rotating plate, and fix the rotating plate on the column through the first bearing; One end of the connecting rod is hinged to the bottom shell of the collector head, and the other end is connected to the hinged part of the rotating plate; On the basis of the above, install the two ends of the spring, hang them in the hook part of the rotating plate and the hanging hole of the connecting rod respectively, and adjust the inclination of the connecting rod according to the tightness of the spring; A blocking member is installed above the bottom shell of the collector head.

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