A slagging working arm and a slagging device

Abstract

The utility model provides a kind of working arm for scraping slag and scraping slag device, including outer bracket, sliding arm, chain drive mechanism and scraping slag plate, outer bracket has the sliding cavity of one end opening;Sliding arm is retracted along the sliding cavity;Chain drive mechanism is connected on outer bracket, and sliding arm is slid by chain drive mechanism, one end of chain is connected with the outer end of sliding arm, the other end of chain is connected with the inner end of sliding arm;Scraping slag plate is connected to the outer end of sliding arm.The utility model provides a kind of working arm for scraping slag, provides driving force for sliding arm by chain drive mechanism, and one end of chain is connected with the outer end of sliding arm, the other end is connected with the inner end of sliding arm, forms the open-loop transmission form of chain, reduces the roundabout path and redundancy connection of chain, significantly reduces the complexity of transmission mechanism, saves space occupation, reduces installation and maintenance difficulty, can also guarantee higher transmission efficiency, help to improve the efficiency of scraping slag operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of iron and steel metallurgical equipment, specifically relating to a slag removal working arm and slag removal device. Background Technology

[0002] In the steel production process, if the slag on the surface of the molten iron in the ladle is not removed in time, it will have an adverse effect on the quality of the molten steel. The slag remover is a key piece of equipment specifically designed to remove such slag, and its performance is directly related to the efficiency and quality of steel production.

[0003] Slag loaders typically possess multiple functions such as lifting, tilting, rotating, and propulsion of the boom to meet the needs of slag removal operations in various scenarios. However, the drive structure of existing slag loader booms is mostly complex and has a large volume, resulting in high processing difficulty and high manufacturing and maintenance costs, which is not conducive to steel mills controlling production costs. Utility Model Content

[0004] This utility model provides a working arm and a slag-removing device for slag removal, aiming to solve the technical problems of the complex drive structure and large space volume of the working arm of the slag-removing machine in the prior art, which leads to high processing difficulty and high maintenance cost.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: Firstly, a working arm for slag removal is provided, comprising:

[0006] The outer bracket has a sliding cavity with one end open;

[0007] The sliding arm extends outward or retracts inward along the sliding cavity;

[0008] A chain drive mechanism is connected to the outer bracket and drives the sliding arm to slide via a chain. One end of the chain is connected to the outer end of the sliding arm, and the other end of the chain is connected to the inner end of the sliding arm.

[0009] The slag removal plate is connected to the outer end of the sliding arm.

[0010] In conjunction with the first aspect, in one possible implementation, the chain drive mechanism includes:

[0011] The first driving component is connected to the outer bracket;

[0012] A drive sprocket is rotatably connected to the outer bracket, connected to the drive end of the first drive member, and meshes with the chain; and

[0013] Two pressure sprockets are rotatably connected to the outer bracket. The two pressure sprockets are located on both sides of the drive sprocket and below the drive sprocket, and are used to press the chain above it.

[0014] In some embodiments, the chain drive mechanism further includes:

[0015] Two connecting pins are respectively installed through the outer bracket, and two pressure sprockets are rotatably sleeved on the outer periphery of the two connecting pins. Each connecting pin has a limiting groove on its outer peripheral wall.

[0016] Two limiting plates are respectively engaged in the two limiting slots; and

[0017] Two sets of fastening connectors are applied one to one pair to connect the two limiting plates to the outer side wall of the outer bracket.

[0018] In conjunction with the first aspect, in one possible implementation, the outer bracket is provided with a first roller assembly at one end near the opening, and the first roller assembly rolls in cooperation with the outer wall of the sliding arm;

[0019] The inner end of the sliding arm is provided with a second roller group, which rolls in cooperation with the cavity wall of the sliding cavity.

[0020] In some embodiments, the first roller assembly includes:

[0021] The first upper roller is rotatably connected to the outer bracket and rolls in cooperation with the top wall of the sliding arm;

[0022] The first lower roller is rotatably connected to the outer bracket and rolls in cooperation with the bottom wall of the sliding arm; and

[0023] Two first side rollers are rotatably connected to the outer bracket, and roll in one-to-one correspondence with the two side walls of the sliding arm;

[0024] The second roller assembly includes:

[0025] The second upper roller is rotatably connected to the sliding arm and rolls in cooperation with the top wall of the sliding cavity;

[0026] The second roller is rotatably connected to the sliding arm and rolls against the bottom wall of the sliding cavity; and

[0027] Two second side rollers are rotatably connected to the sliding arm, and roll in one-to-one correspondence with the two side walls of the sliding cavity.

[0028] In conjunction with the first aspect, in one possible implementation, the inner end of the sliding arm is connected to a mounting plate, and the chain is connected to the inner end of the sliding arm via a tensioning assembly, the tensioning assembly comprising:

[0029] An adjusting rod is provided through the mounting plate and slides with the mounting plate. The sliding direction of the adjusting rod is parallel to the extension direction of the sliding arm. The chain is connected to the first end of the adjusting rod.

[0030] Adjusting nut, threaded onto the second end of the adjusting rod; and

[0031] An elastic element is sleeved on the outer periphery of the adjusting rod and abuts against the mounting plate and the adjusting nut.

[0032] In conjunction with the first aspect, in one possible implementation, the outer end of the sliding arm is connected to an extension arm, the outer end of the extension arm is provided with an insert plate, the slag removal plate is provided with an insert part, and the insert part is inserted into the insert plate.

[0033] The slag removal working arm also includes a positioning pin, which is disposed through the insert plate and the insert part and is used to connect the extension arm and the slag removal plate.

[0034] The beneficial effects of the slag-removing working arm provided by this utility model are as follows: Compared with the prior art, the slag-removing working arm of this utility model provides a rigid guiding space for the sliding arm through the sliding cavity of the outer bracket, ensuring that the sliding arm can drive the slag-removing plate to move stably along the preset trajectory; the chain drive mechanism provides driving force to the sliding arm, and connects one end of the chain to the outer end of the sliding arm and the other end to the inner end of the sliding arm, forming an open-loop transmission form of the chain, reducing the chain's bypass path and redundant connections, significantly reducing the complexity of the transmission mechanism, and effectively reducing the difficulty of installation and maintenance.

[0035] Furthermore, the chain drive mechanism 5, with its chain transmission, can transmit significant traction force, making it suitable for heavy-duty conditions. It is also less prone to failure in harsh environments such as high temperatures and dust, reducing maintenance frequency and effectively lowering maintenance costs. Moreover, the one-to-one connection between the two ends of the chain 51 and the two ends of the sliding arm 3 makes the nested structure of the outer bracket 1 and the sliding arm 3 more compact, reducing the space occupied by the equipment and adapting to confined working environments, thus well meeting the requirements of customers' on-site working conditions.

[0036] Secondly, this utility model embodiment also provides a slag-removing device, including a slag-removing working arm as described in any of the foregoing claims and a supporting mechanism, wherein the supporting mechanism includes:

[0037] Base;

[0038] A support base is rotatably connected to the base in a horizontal direction; the support base has two upwardly extending support plates; the outer bracket is hinged between the two support plates via a pivot; and

[0039] A telescopic drive component is hinged to the support base, and the extended end of the telescopic drive component is hinged to the outer bracket, which is used to drive the outer bracket to swing vertically around the rotating shaft.

[0040] In conjunction with the second aspect, in some embodiments, the support mechanism further includes:

[0041] A slewing bearing has an outer gear ring and a rotating inner ring. The outer gear ring is connected to the base, and the rotating inner ring is rotatably connected to the inner circumference of the outer gear ring. The support base is connected to the rotating inner ring.

[0042] A second driving member, connected to the support base, has a downwardly extending output end; and

[0043] The driving gear is connected to the output end and meshes with the external gear ring.

[0044] In conjunction with the second aspect, in some embodiments, a protective plate is connected to the support base, and the protective plate is provided with a clearance passage for the outer bracket to pass through.

[0045] The beneficial effects of the slag removal device provided in this embodiment are as follows: Compared with the prior art, the slag removal device of this embodiment achieves horizontal rotation and vertical swing of the working arm through the synergistic action of the support base and the telescopic drive component; at the same time, combined with the stable extension and retraction of the slag removal working arm along the sliding cavity under the drive of the chain drive mechanism, the working range is expanded in multiple dimensions, ensuring the smooth operation and positioning accuracy of the slag removal device, adapting to various working conditions, and greatly improving the overall efficiency of slag removal operations; in addition, the chain drive mechanism adopts an open-loop chain design, which simplifies the structure of the working arm, reduces the difficulty of processing and installation, and the chain transmission form has strong environmental adaptability, which can greatly reduce the number of maintenance times and help improve maintenance efficiency. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the structure of a slag removal device provided in an embodiment of the present utility model;

[0048] Figure 2 This is an embodiment of the present utility model. Figure 1 Enlarged structural diagram of section A in the middle;

[0049] Figure 3 A schematic diagram of the structure of a slag removal working arm provided in an embodiment of this utility model;

[0050] Figure 4 This is an embodiment of the present utility model. Figure 3 Partial structural diagram;

[0051] Figure 5 This is an embodiment of the present utility model. Figure 4 Schematic diagram of the cross-sectional structure along the middle BB line;

[0052] Figure 6 This is an embodiment of the present utility model. Figure 4 Schematic diagram of the cross-sectional structure along the CC line (excluding the chain);

[0053] Figure 7 This is an embodiment of the present utility model. Figure 6 Enlarged structural diagram of section D in the middle;

[0054] Figure 8 This is an embodiment of the present utility model. Figure 3 Partial structural diagram;

[0055] Figure 9 This is a schematic diagram of the slag removal plate provided in an embodiment of the present utility model;

[0056] Figure 10 A schematic diagram of the connection between the support mechanism and the slag removal working arm provided in this embodiment of the utility model;

[0057] Figure 11 A partial cross-sectional view of the support mechanism provided in an embodiment of this utility model.

[0058] The following are the labeling elements in the figure:

[0059] 10. Slag removal work arm;

[0060] 1. Outer bracket; 2. First roller assembly; 21. First upper roller; 22. First lower roller; 23. First side roller; 3. Sliding arm; 31. Mounting plate; 32. Extension arm; 33. Insert plate; 4. Second roller assembly; 41. Second upper roller; 42. Second lower roller; 43. Second side roller; 5. Chain drive mechanism; 51. Chain; 52. First drive component; 53. Drive sprocket; 54. Pressure sprocket; 55. Connecting pin; 551. Limiting slot; 56. Limiting plate; 57. Fastening connector; 6. Slag removal plate; 61. Insertion part; 7. Tensioning assembly; 71. Adjusting rod; 72. Adjusting nut; 73. Elastic component; 8. Positioning pin;

[0061] 20. Support mechanism; 201. Base; 202. Support seat; 2021. Support plate; 203. Rotating shaft; 204. Telescopic drive component; 205. Slewing bearing component; 2051. External gear ring; 2052. Rotating inner ring; 206. Second drive component; 207. Drive gear;

[0062] 30. Protective plate; 301. Clearance passage. Detailed Implementation

[0063] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0064] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0065] Please refer to the following: Figures 1 to 11 The present invention provides a slag-removing working arm and slag-removing device. The slag-removing working arm 10 includes an outer support frame 1, a sliding arm 3, a chain drive mechanism 5, and a slag-removing plate 6. The outer support frame 1 has a sliding cavity with one open end; the sliding arm 3 extends outward or retracts inward along the sliding cavity; the chain drive mechanism 5 is connected to the outer support frame 1 and drives the sliding arm 3 to slide via a chain 51, one end of which is connected to the outer end of the sliding arm 3, and the other end of which is connected to the inner end of the sliding arm 3; the slag-removing plate 6 is connected to the outer end of the sliding arm 3.

[0066] It is important to understand that the inner end of the sliding arm 3 refers to the end located inside the sliding cavity, while the outer end of the sliding arm 3 is the end that can slide outward.

[0067] The slag removal arm provided in this embodiment, compared with the prior art, provides a rigid guiding space for the sliding arm 3 through the sliding cavity of the outer bracket 1, ensuring that the sliding arm 3 can drive the slag removal plate 6 to move stably along the preset trajectory; the chain drive mechanism 5 provides driving force to the sliding arm 3, and connects one end of the chain 51 to the outer end of the sliding arm 3 and the other end to the inner end of the sliding arm 3, forming an open-loop transmission form of the chain 51, reducing the bypass path and redundant connection of the chain 51, significantly reducing the complexity of the transmission mechanism, and effectively reducing the difficulty of installation and maintenance.

[0068] Furthermore, the chain drive mechanism 5, with its chain transmission, can transmit significant traction force, making it suitable for heavy-duty conditions. It is also less prone to failure in harsh environments such as high temperatures and dust, reducing maintenance frequency and effectively lowering maintenance costs. Moreover, the one-to-one connection between the two ends of the chain 51 and the two ends of the sliding arm 3 makes the nested structure of the outer bracket 1 and the sliding arm 3 more compact, reducing the space occupied by the equipment and adapting to confined working environments, thus well meeting the requirements of customers' on-site working conditions.

[0069] Specifically, both the outer bracket 1 and the sliding arm 3 are rectangular tubular structures welded from steel plates. The outer bracket 1 is used to connect with the main body of the slag removal device, and the sliding cavity has a rectangular cross-section, providing a stable sliding guide foundation for the sliding arm 3.

[0070] When slag removal is required, the chain drive mechanism 5 is activated, pulling the inner end of the sliding arm 3 outward via the chain 51. This causes the sliding arm 3 to slide outward along the sliding cavity of the outer bracket 1. As the sliding arm 3 extends outward, the slag removal plate 6 connected to its outer end moves synchronously to the slag position on the surface of the molten iron in the ladle, completing the slag removal operation. Afterward, the chain drive mechanism 5 reverses its direction, pulling the outer end of the sliding arm 3 inward via the chain 51, thereby causing the sliding arm 3 to slide inward and retract, resetting the slag removal plate 6.

[0071] For example, the sliding arm 3 is provided with a limiting block, and the outer bracket 1 is provided with a positioning block. The limiting block moves synchronously with the sliding arm 3, and when it abuts against the positioning block, it can limit the extension and retraction stroke of the sliding arm 3.

[0072] In some embodiments, the chain drive mechanism 5 described above can be as follows: Figure 4 and Figure 6 The structure shown. See also Figure 4 and Figure 6The chain drive mechanism 5 includes a first drive member 52, a drive sprocket 53, and two pressure sprockets 54. The first drive member 52 is connected to the outer bracket 1. The drive sprocket 53 is rotatably connected to the outer bracket 1, connected to the drive end of the first drive member 52, and meshes with the chain 51. The two pressure sprockets 54 are rotatably connected to the outer bracket 1 respectively. The two pressure sprockets 54 are located on both sides of the drive sprocket 53 and below the drive sprocket 53, and are used to press against the top of the chain 51.

[0073] The first drive component 52, acting as a power source to output torque, is fixedly mounted at the end of the outer bracket 1 near the opening, ensuring that the sliding arm 3 has sufficient extension and retraction stroke. The first drive component 52 preferably uses a low-speed, high-torque hydraulic motor to ensure reliable output of driving force.

[0074] The drive sprocket 53 is rigidly connected to the drive end of the first drive member 52 via a key connection, and rotates synchronously with the first drive member 52. Its teeth mesh with the inner side of the chain 51 to drive the chain 51 to rotate.

[0075] Two pressure sprockets 54 are located on both sides below the drive sprocket 53, forming a triangular layout with the drive sprocket 53. On the one hand, this increases the wrap angle between the chain 51 and the drive sprocket 53, increases the number of meshing teeth, improves transmission friction, prevents slippage, and ensures stable power transmission. On the other hand, by pressing the two pressure sprockets 54 onto the outer upper part of the chain 51, the tension of the chain 51 on the sliding arm 3 is kept consistent with the extension and retraction direction of the sliding arm 3. This avoids the generation of lateral force that would cause the sliding arm 3 to bear additional bending moment, thus ensuring improved drive efficiency.

[0076] Based on the above embodiments, see Figure 4 and Figure 7 The chain drive mechanism 5 also includes two connecting pins 55, two limiting plates 56, and two sets of fastening connectors 57. The two connecting pins 55 are respectively installed through the outer bracket 1. The two pressure sprockets 54 are rotatably sleeved on the outer periphery of the two connecting pins 55. Each connecting pin 55 has a limiting groove 551 on its outer peripheral wall. The two limiting plates 56 are correspondingly engaged in the two limiting grooves 551. The two sets of fastening connectors 57 are applied one-to-one to connect the two limiting plates 56 to the outer side wall of the outer bracket 1.

[0077] In this embodiment, the configuration of the connecting pin 55, the limiting plate 56, and the fastening connector 57 facilitates the installation of the sprocket 54. Specifically, taking the installation of one of the sprockets 54 as an example, the sprocket 54 is fitted onto the outer periphery of the connecting pin 55, and the connecting pin 55 passes through the two side walls of the outer bracket 1. The shaft end ring of the connecting pin 55 abuts against one side wall of the outer bracket 1 for axial limiting. At this time, the limiting groove 551 at the other end of the connecting pin 55 extends outward to the other side wall of the outer bracket 1. The limiting plate 56 is engaged in the limiting groove 551, and the fastening connector 57 is used to connect the limiting plate 56 to the other side wall of the outer bracket 1, forming an axial limit on the other end of the connecting pin 55. Thus, the installation of the sprocket 54 is completed.

[0078] The engagement between the limiting plate 56 and the limiting slot 551, along with the connection of the fastening connector 57, creates a circumferential constraint on the connecting pin 55. This prevents wear between the connecting pin 55 and the outer bracket 1 caused by the rotation of the pressure wheel 54, ensuring that the pressure wheel 54 always maintains the preset pressing angle and position, thus guaranteeing the stable constraint of the pressure wheel 54 on the chain 51. At the same time, the above structure makes the installation and maintenance of the pressure wheel 54 more convenient, reducing installation and maintenance time.

[0079] Furthermore, two sleeves can be fitted onto the connecting pin 55. The two sleeves are located on both sides of the pressure wheel 54 and abut against the two inner side walls of the outer bracket 1. This is used to limit the axial position of the pressure wheel 54 on the connecting pin 55, prevent the pressure wheel 54 from shifting relative to the chain 51, and ensure the constraint effect on the chain 51.

[0080] Furthermore, the connecting pin 55 is provided with a lubricating oil channel, and an oil nozzle is connected to its shaft head ring. Lubricating oil is supplied to the rotating connection part between the pressure sprocket 54 and the connecting pin 55 through the oil nozzle and the lubricating oil channel, so as to ensure the smooth rotation of the pressure sprocket 54 and avoid hard wear between it and the chain 51.

[0081] In some embodiments, see Figure 3 The outer bracket 1 is provided with a first roller group 2 at one end near the opening, and the first roller group 2 rolls with the outer wall of the sliding arm 3; the inner end of the sliding arm 3 is provided with a second roller group 4, and the second roller group 4 rolls with the cavity wall of the sliding cavity.

[0082] The first roller group 2 is located at the open end of the outer bracket 1. During the sliding extension and retraction of the sliding arm 3, it can roll and support the outer wall of the sliding arm 3 to form a front-end guide support. The second roller group 4 is located at the inner end of the sliding arm 3. It can move synchronously with the sliding arm 3 and roll and support the cavity wall of the sliding cavity to form a rear-end guide support.

[0083] The first roller group 2 and the second roller group 4 work together to provide stable multi-point support and precise path guidance for the sliding arm 3. This not only significantly reduces the resistance during the extension and retraction of the sliding arm 3, making the sliding operation smoother, reducing component wear, and extending the service life of the working arm, but also, the two roller groups form limiting guidance for the sliding arm 3 from different positions, effectively suppressing the swaying or deviation of the sliding arm 3 during the sliding process, and improving the stability and motion accuracy of the overall structure.

[0084] In some specific embodiments, the first roller group 2 and the second roller group 4 described above can be adopted as follows: Figure 5 , Figure 6 and Figure 8 The structure shown. See also Figure 5 , Figure 6 and Figure 8 The first roller group 2 includes a first upper roller 21, a first lower roller 22, and two first side rollers 23. The first upper roller 21 is rotatably connected to the outer bracket 1 and rolls in cooperation with the top wall of the sliding arm 3. The first lower roller 22 is rotatably connected to the outer bracket 1 and rolls in cooperation with the bottom wall of the sliding arm 3. The two first side rollers 23 are respectively rotatably connected to the outer bracket 1 and roll in cooperation with the two side walls of the sliding arm 3 respectively.

[0085] The second roller assembly 4 includes a second upper roller 41, a second lower roller 42, and two second side rollers 43. The second upper roller 41 is rotatably connected to the sliding arm 3 and rolls in cooperation with the top wall of the sliding cavity. The second lower roller 42 is rotatably connected to the sliding arm 3 and rolls in cooperation with the bottom wall of the sliding cavity. The two second side rollers 43 are rotatably connected to the sliding arm 3 respectively and roll in cooperation with the two side walls of the sliding cavity.

[0086] In this embodiment, two first upper rollers 21 and two first lower rollers 22 are symmetrically provided. The two first upper rollers 21 are coaxially arranged above the sliding arm 3 and roll in cooperation with the top wall of the sliding arm 3. The two first lower rollers 22 are coaxially arranged below the sliding arm 3 and roll in cooperation with the bottom wall of the sliding arm 3. The first upper rollers 21 and the first lower rollers 22 together restrict the vertical displacement of the sliding arm 3.

[0087] The main shafts of the two first side rollers 23 extend in the vertical direction and roll in cooperation with the two outer side walls of the sliding arm 3 respectively, in order to limit the horizontal lateral displacement of the sliding arm 3.

[0088] The second upper roller 41 and the second lower roller 42 are connected to the inner end of the sliding arm 3 by a mounting bracket. Their main shafts extend along the width direction of the sliding arm 3 to roll and cooperate with the top wall and bottom wall of the sliding cavity, respectively, so as to provide vertical guidance and support for the sliding arm 3.

[0089] The two second side rollers 43 are respectively used to roll with the two cavity sidewalls of the sliding cavity, restricting the inner end of the sliding arm 3 from horizontal lateral displacement, forming a rear end guide.

[0090] The first roller group 2 and the second roller group 4 form multi-dimensional constraints on both ends of the sliding arm 3 from the top, bottom, and sides, respectively, ensuring the straightness of the sliding arm 3 during extension and retraction and ensuring the positional accuracy of the slag removal plate 6 during operation. At the same time, the rolling coordination of each part greatly reduces the resistance during the extension and retraction of the sliding arm 3, and together with the driving force of the chain 51, it keeps the sliding arm 3 running stably and improves the continuity of slag removal operations.

[0091] In some embodiments, the chain 51 and the sliding arm 3 may be connected in the manner described above. Figure 8 The structure shown. See also Figure 8 The inner end of the sliding arm 3 is connected to the mounting plate 31. The chain 51 is connected to the inner end of the sliding arm 3 through the tensioning assembly 7. The tensioning assembly 7 includes an adjusting rod 71, an adjusting nut 72, and an elastic element 73. The adjusting rod 71 passes through the mounting plate 31 and slides with the mounting plate 31. The sliding direction of the adjusting rod 71 is parallel to the extension direction of the sliding arm 3. The chain 51 is connected to the first end of the adjusting rod 71. The adjusting nut 72 is threaded onto the second end of the adjusting rod 71. The elastic element 73 is sleeved on the outer periphery of the adjusting rod 71 and abuts against the mounting plate 31 and the adjusting nut 72.

[0092] It should be noted that the first end of the adjusting rod 71 refers to the end facing the opening of the sliding cavity, that is, the end of the adjusting rod 71 that is close to the chain 51; the second end of the adjusting rod 71 refers to the end facing away from the opening of the sliding cavity, that is, the end of the adjusting rod 71 that is away from the chain 51.

[0093] By rotating the adjusting nut 72, it moves axially along the adjusting rod 71, compressing the elastic element 73 located between the adjusting nut 72 and the mounting plate 31, causing the elastic element 73 to generate a preset preload force, thereby achieving precise adjustment of the initial tension of the chain 51 to adapt to the installation of new chains 51 or different operating load requirements.

[0094] In addition, when the sliding arm 3 extends or retracts, the chain 51 will be subjected to tensile fluctuations. The elastic element 73 can be used to absorb instantaneous impact loads, reduce tooth surface wear between the chain 51 and the drive sprocket 53, and help extend the service life of the chain 51.

[0095] It should be noted that when rotating the adjusting nut 72 to adjust the compression of the elastic element 73, it is necessary to simultaneously restrict the circumferential rotation of the adjusting rod 71 to avoid generating torque on the chain 51. In other words, when rotating the adjusting nut 72, only the adjusting rod 71 can be moved axially, and the tension of the chain 51 can be adjusted by using the preload of the elastic element 73.

[0096] Specifically, the elastic element 73 can be a disc spring or a cylindrical helical spring.

[0097] Furthermore, a circular washer is provided between the adjusting nut 72 and the elastic element 73 to prevent the preload of the elastic element 73 from interfering with the rotation operation of the adjusting nut 72.

[0098] In some embodiments, the sliding arm 3 and the slag-removing plate 6 can be connected by, for example, Figure 2 and Figure 9 The structure shown. See also Figure 2 and Figure 9 The outer end of the sliding arm 3 is connected to the extension arm 32, and the outer end of the extension arm 32 is provided with an insert plate 33. The slag removal plate 6 is provided with an insert part 61, and the insert part 61 is inserted into the insert plate 33. The slag removal working arm 10 also includes a positioning pin 8, which is set through the insert plate 33 and the insert part 61 and is used to connect the extension arm 32 and the slag removal plate 6.

[0099] It should be understood that the outer end of the extension arm 32 refers to the end away from the sliding arm 3.

[0100] The extension arm 32 is welded from I-beams, and its volume and weight are smaller than those of the sliding arm 3. This allows for a lightweight design at the outer end of the sliding arm 3, which not only effectively extends the working radius of the slag removal plate 6, but also prevents the overall swaying of the working arm caused by excessive forward shift of the center of gravity when the sliding arm 3 is extended, thus improving operational safety.

[0101] The insertion and fitting of the insert plate 33 and the insert part 61, as well as the through connection of the positioning pin 8, facilitates quick disassembly and assembly of the slag removal plate 6 and the extension arm 32 without the need for tools such as wrenches, making it convenient to replace the slag removal plate 6, and is especially suitable for rapid maintenance in high-temperature environments.

[0102] Specifically, the insert plate 33 is connected to the bottom surface of the outer end of the extension arm 32 and extends along the extension direction of the extension arm 32; a connecting seat is provided above the slag removal plate 6, and the insert part 61 is an insert groove provided on the connecting seat, the depth of which is adapted to the thickness of the insert plate 33. A pin hole is provided near the bottom of the insert groove in the insert part 61, and a pin hole of the same diameter is also provided near the outer edge of the insert plate 33 to facilitate the through connection of the positioning pin 8.

[0103] When installing the slag removal plate 6, after aligning the insertion groove with the outer edge of the insertion plate 33, push the slag removal plate 6 so that the outer edge of the insertion plate 33 is inserted into the bottom wall of the insertion groove, thus achieving the initial insertion and positioning of the slag removal plate 6. At this time, the pin hole on the insertion part 61 and the pin hole on the insertion plate 33 are connected vertically. Then, the positioning pin 8 is passed through the connected pin hole, and a cotter pin is set at the tail end of the positioning pin 8 to complete the reliable connection between the slag removal plate 6 and the extension arm 32.

[0104] Preferably, the two sides of the slag-scraping plate 6 are curved towards the side closer to the outer support 1, forming a tendency to wrap the slag inward. When using the slag-scraping plate 6 for slag-scraping operations, it can guide the slag on both sides to gather in the middle, preventing the slag from sliding off the sides of the slag-scraping plate 6, which helps to increase the amount of slag scraped in a single operation and improve work efficiency.

[0105] Based on the same inventive concept, see [link to inventive concept] Figure 1 and Figure 10 This application also provides a slag removal device, including the slag removal working arm 10 proposed in any of the preceding claims and a support mechanism 20. The support mechanism 20 includes a base 201, a support seat 202 and a telescopic drive member 204. The support seat 202 is rotatably connected to the base 201 in the horizontal direction. The support seat 202 has two upwardly extending support plates 2021. The outer bracket 1 is hinged between the two support plates 2021 through a rotating shaft 203. The telescopic drive member 204 is hinged to the support seat 202, and the extended end of the telescopic drive member 204 is hinged to the outer bracket 1 to drive the outer bracket 1 to swing vertically around the rotating shaft 203.

[0106] In this embodiment, the base 201 provides a stable foundation for the entire slag removal device. When in use, the base 201 can be fixed on the operating platform; or the base 201 can be installed on the vehicle body, and the slag removal device can be moved by moving the vehicle body, so as to be suitable for different working sites.

[0107] The rotational engagement between the support base 202 and the base 201 allows the slag-removing working arm 10 to rotate to any angle in the horizontal direction; the two support plates 2021 on the support base 202 form a symmetrical support structure and are hinged to the rotating shaft 203 of the outer bracket 1, providing a stable fulcrum for the vertical swing of the slag-removing working arm 10.

[0108] The telescopic drive component 204 is in the form of a hydraulic cylinder or pneumatic cylinder. Its cylinder body is hinged to the support base 202, and the extended end of its piston rod is hinged to the outer bracket 1. Two telescopic drive components 204 are symmetrically arranged, located on both sides of the slag-removing working arm 10. The synchronous telescopic movement of the two telescopic drive components 204 can drive the slag-removing working arm 10 to swing vertically around the pivot 203, which can not only stably support the weight of the working arm, but also accurately adjust the pitch angle of the working arm. At the same time, in conjunction with the telescopic length of the sliding arm 3, it can better adapt to different on-site operating environments.

[0109] Compared with the prior art, the slag removal device provided in this embodiment achieves horizontal rotation and vertical swing of the slag removal working arm 10 through the synergistic action of the support base 202 and the telescopic drive component 204. At the same time, combined with the stable extension and retraction of the slag removal working arm 10 along the sliding cavity under the drive of the chain drive mechanism 5, the working range is expanded in multiple dimensions, ensuring the smooth operation and positioning accuracy of the slag removal device. It can adapt to various working conditions and greatly improve the overall efficiency of slag removal operations. In addition, the chain drive mechanism 5 adopts an open-loop design of the chain 51, which simplifies the structure of the working arm and reduces the difficulty of processing and installation. At the same time, the chain drive has strong environmental adaptability, which can greatly reduce the number of maintenance times and help improve maintenance efficiency.

[0110] In some embodiments, the support mechanism 20 may employ, for example... Figure 11 The structure shown. See also Figure 11 The support mechanism 20 also includes a slewing bearing 205, a second drive member 206, and a drive gear 207. The slewing bearing 205 has an outer gear ring 2051 and a rotating inner ring 2052. The outer gear ring 2051 is connected to the base 201, and the rotating inner ring 2052 is rotatably connected to the inner circumference of the outer gear ring 2051. The support seat 202 is connected to the rotating inner ring 2052. The second drive member 206 is connected to the support seat 202 and has a downwardly extending output end. The drive gear 207 is connected to the output end and meshes with the outer gear ring 2051.

[0111] The second drive component 206 adopts an integrated hydraulic motor with a reducer to provide a reliable rotational driving force for the support base 202. When the second drive component 206 drives the drive gear 207 to rotate, the drive gear 207 meshes with the external gear ring 2051 fixed on the base 201. Since the external gear ring 2051 is fixed, the drive gear 207 drives the support base 202 to rotate around the external gear ring 2051. At the same time, the rotational connection between the rotating inner ring 2052 and the external gear ring 2051 provides a stable rotational guide for the rotation of the support base 202, thereby realizing the horizontal steering of the entire slag removal working arm 10.

[0112] The outer gear ring 2051 of the slewing bearing 205 and the inner rotating ring 2052 form a high-strength rotary support. Combined with the rigid transmission of gear meshing, it not only ensures the stability of the horizontal rotation of the support seat 202, but also improves the control accuracy of the rotation angle through the precise meshing of the gear transmission.

[0113] See some possible embodiments. Figure 9 A protective plate 30 is connected to the support base 202, and the protective plate 30 is provided with a clearance channel 301 for the outer bracket 1 to pass through.

[0114] The protective plate 30 is bolted to the support base 202 and rotates synchronously with the support base 202. The protective plate 30 on the support base 202 provides space for the vertical swing of the outer bracket 1 through the clearance channel 301. This does not interfere with its normal operation, but also effectively blocks slag, dust and other impurities splashed during slag removal operations, preventing them from directly impacting key components such as the telescopic drive component 204, the second drive component 206, and the slewing bearing component 205 on the support base 202. This reduces problems such as drive jamming and accelerated wear of the rotating shaft 203 caused by impurities adhering to the drive.

[0115] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A slagging work arm characterized by, include: The outer bracket (1) has a sliding cavity with one end open; The sliding arm (3) extends outward or retracts inward along the sliding cavity; A chain drive mechanism (5) is connected to the outer bracket (1) and drives the sliding arm (3) to slide via a chain (51). One end of the chain (51) is connected to the outer end of the sliding arm (3), and the other end of the chain (51) is connected to the inner end of the sliding arm (3). The slag removal plate (6) is connected to the outer end of the sliding arm (3).

2. A slagging arm as claimed in claim 1, characterized in that The chain drive mechanism (5) includes: The first driving component (52) is connected to the outer bracket (1); A drive sprocket (53) is rotatably connected to the outer bracket (1), connected to the drive end of the first drive member (52), and meshes with the chain (51); and Two pressure sprockets (54) are rotatably connected to the outer bracket (1). The two pressure sprockets (54) are located on both sides of the drive sprocket (53) and are both located below the drive sprocket (53) for pressing on the top of the chain (51).

3. A slagging arm as claimed in claim 2, wherein The chain drive mechanism (5) also includes: Two connecting pins (55) are respectively installed through the outer bracket (1), and two pressure wheels (54) are rotatably sleeved on the outer periphery of the two connecting pins (55). Each connecting pin (55) has a limiting groove (551) on its outer periphery wall. Two limiting plates (56) are respectively engaged in the two limiting slots (551); and Two sets of fastening connectors (57) are applied one to one to connect the two limiting plates (56) to the outer side wall of the outer bracket (1).

4. A slagging arm as claimed in claim 1, wherein The outer bracket (1) is provided with a first roller group (2) at one end near the opening, and the first roller group (2) rolls in cooperation with the outer wall of the sliding arm (3); The inner end of the sliding arm (3) is provided with a second roller group (4), which rolls in cooperation with the cavity wall of the sliding cavity.

5. A working arm for slagging according to claim 4, characterized in that The first roller assembly (2) includes: The first upper roller (21) is rotatably connected to the outer bracket (1) and rolls in cooperation with the top wall of the sliding arm (3); The first lower roller (22) is rotatably connected to the outer bracket (1) and rolls in cooperation with the bottom wall of the sliding arm (3); and Two first side rollers (23) are rotatably connected to the outer bracket (1) and roll in one-to-one correspondence with the two side walls of the sliding arm (3); The second roller assembly (4) includes: The second upper roller (41) is rotatably connected to the sliding arm (3) and rolls in cooperation with the top wall of the sliding cavity; The second lower roller (42) is rotatably connected to the sliding arm (3) and rolls in cooperation with the bottom wall of the sliding cavity; and Two second side rollers (43) are rotatably connected to the sliding arm (3) and roll in a one-to-one correspondence with the two side walls of the sliding cavity.

6. A slagging arm as claimed in claim 1, wherein The inner end of the sliding arm (3) is connected to a mounting plate (31), and the chain (51) is connected to the inner end of the sliding arm (3) through a tensioning assembly (7), the tensioning assembly (7) comprising: An adjusting rod (71) is provided through the mounting plate (31) and is slidably engaged with the mounting plate (31). The sliding direction of the adjusting rod (71) is parallel to the extension direction of the sliding arm (3). The chain (51) is connected to the first end of the adjusting rod (71). Adjusting nut (72), threaded onto the second end of adjusting rod (71); and The elastic element (73) is sleeved on the outer periphery of the adjusting rod (71) and abuts between the mounting plate (31) and the adjusting nut (72).

7. A slagging arm as claimed in claim 1, wherein The outer end of the sliding arm (3) is connected to an extension arm (32), the outer end of the extension arm (32) is provided with an insertion plate (33), the slag removal plate (6) is provided with an insertion part (61), and the insertion part (61) is inserted into the insertion plate (33). The slag removal working arm (10) also includes a positioning pin (8), which is disposed through the insert plate (33) and the insert part (61) and is used to connect the extension arm (32) and the slag removal plate (6).

8. A slag skimming device, characterized in that Including a slag removal working arm (10) as described in any one of claims 1-7 and a support mechanism (20), the support mechanism (20) comprising: Base (201); A support base (202) is rotatably connected to the base (201) in a horizontal direction; the support base (202) has two upwardly extending support plates (2021); the outer bracket (1) is hinged between the two support plates (2021) via a pivot (203); and The telescopic drive member (204) is hinged to the support base (202). The extended end of the telescopic drive member (204) is hinged to the outer bracket (1) and is used to drive the outer bracket (1) to swing vertically around the rotating shaft (203).

9. A slag skimming device as claimed in claim 8, characterized in that The support mechanism (20) also includes: A slewing bearing (205) has an outer gear ring (2051) and a rotating inner ring (2052). The outer gear ring (2051) is connected to the base (201), and the rotating inner ring (2052) is rotatably connected to the inner circumference of the outer gear ring (2051). The support base (202) is connected to the rotating inner ring (2052). The second drive element (206), connected to the support base (202), has a downwardly extending output end; and The drive gear (207) is connected to the output end and meshes with the external gear ring (2051).

10. A slag skimming device as claimed in claim 8, characterized in that A protective plate (30) is connected to the support base (202), and the protective plate (30) is provided with a clearance channel (301) for the outer bracket (1) to pass through.

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