Knocking device for removing oxide skin of steel rail sample

Abstract

The invention discloses a knocking device for removing steel rail sample oxide skin, which comprises a carriage assembly and a knocking assembly, the knocking assembly is internally provided with an inertia striking piece capable of rotating and resetting, and the knocking assembly and the carriage assembly are connected into a whole through a connecting guide rod; an inclined groove assembly for limiting the connecting guide rod is arranged in the sliding frame assembly, and the connecting guide rod is arranged in the inclined groove assembly in a sliding mode, so that the connecting guide rod can move in the radial direction of the connecting guide rod relative to the sliding frame assembly; according to the device, a traditional mode of removing the oxide skin of the steel rail sample through manual knocking is replaced, the oxide skin removing efficiency is improved, meanwhile, the safety of field operators is guaranteed, and the accuracy and precision of a steel rail heat treatment test are improved.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical machinery technology, and specifically relates to a striking device for removing oxide scale from rail samples. Background Technology

[0002] When conducting heat treatment tests on rail samples, the samples are first heated to several hundred or even thousands of degrees Celsius in a vacuum furnace. During the cooling process after removal from the furnace, the samples come into contact with air, causing oxidation and forming an oxide scale of a certain thickness on the surface. This oxide scale can affect the accuracy and precision of subsequent tests. Therefore, it is necessary to remove the oxide scale to ensure the quality of the rail samples and the accuracy of the test results. Currently, the oxide scale is mainly removed manually by tapping, which results in low removal efficiency, poor working conditions for workers, and the risk of burns from hot iron splattering. To solve these problems, a tapping device for removing oxide scale from rail samples has been invented. This device improves the efficiency of oxide scale removal while ensuring the safety of on-site operators and also helps to improve the accuracy and precision of rail heat treatment tests. Summary of the Invention

[0003] The purpose of this invention is to provide a striking device for removing oxide scale from rail samples, addressing the aforementioned shortcomings. This solves the problems of low removal efficiency, poor working environment for workers, and burns to operators caused by hot iron splattering, which are common in the prior art.

[0004] This invention is achieved through the following scheme: A striking device for removing oxide scale from rail samples includes a carriage assembly and a striking assembly. The striking assembly is provided with an inertial striking element capable of rotation and resetting. The striking assembly and the carriage assembly are connected as one unit via a connecting guide rod. The carriage assembly is provided with a sloping groove assembly for limiting the position of the connecting guide rod. The connecting guide rod is slidably disposed in the sloping groove assembly, allowing the connecting guide rod to move radially relative to the carriage assembly.

[0005] Based on the structure of the above-mentioned striking device for removing oxide scale from rail samples, a buffer assembly is also provided between the slide assembly and the striking assembly; the buffer assembly includes a buffer spring and a spring seat; the connecting guide rod is disposed in the spring seat, the spring seat is disposed on the striking assembly, one end of the buffer spring extends to the bottom of the slide assembly, and the other end is disposed in an embedded position in the spring seat.

[0006] Based on the structure of the above-mentioned striking device for removing oxide scale from rail samples, the bottom of the slide assembly is provided with a mating groove that cooperates with the connecting guide rod. The mating groove is an elongated hole. A stop ring is provided at the end of the buffer spring away from the spring seat. The size of the stop ring is not less than the size of the mating groove. The end of the buffer spring is fixedly connected to the stop ring.

[0007] Based on the structure of the above-mentioned striking device for removing oxide scale from rail samples, the carriage assembly includes a carriage base plate, carriage side plates, and carriage end plates; the carriage side plates and carriage end plates are symmetrically arranged on the carriage base plate, and the carriage end plates are arranged between the two carriage side plates; the carriage side plates are generally V-shaped, and a receiving plate that connects to an external power component is provided at the center of adjacent carriage side plates.

[0008] Based on the structure of the above-mentioned striking device for removing oxide scale from rail samples, the inclined groove assembly is disposed between adjacent sliding side plates, and a sliding member is disposed in the inclined groove assembly; both ends of the sliding member are fixed to the inclined brace assembly by bolts, and the sliding member can move along the length direction of the inclined brace assembly.

[0009] Based on the structure of the above-mentioned striking device for removing oxide scale from rail samples, the top of the connecting guide rod is provided with an external thread, and the sliding member is provided with a threaded groove; the connecting guide rod and the sliding member are threadedly connected.

[0010] Based on the structure of the above-mentioned striking device for removing oxide scale from rail samples, at least two sets of guide wheels are provided on the slide end plate, and the guide wheels are arranged along the length direction of the slide end plate.

[0011] Based on the structure of the above-mentioned striking device for removing oxide scale from rail samples, the striking assembly includes a connecting plate, a top striking part, and a side striking part; the top striking part is fixedly connected to the connecting plate, and the side striking parts are arranged on both sides of the top striking part along the center position of the top striking part. The side striking parts are hinged at both ends of the top striking part by torsion springs, and the side striking parts are set at a predetermined angle to the vertical plane, so that the two side striking parts form an inverted V-shaped structure.

[0012] Based on the structure of the above-mentioned striking device for removing oxide scale from rail samples, the lateral striking part includes multiple sets of inertial striking parts, each set of inertial striking parts is hinged by a torsion spring; each set of inertial striking parts includes multiple inertial striking elements; adjacent inertial striking elements are hinged by torsion springs.

[0013] Based on the structure of the above-mentioned striking device for removing oxide scale from rail samples, a counterweight is provided on the end of the lateral striking part away from the top striking part.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: (1) The guide wheels around the slide can make the entire striking head slide smoothly up and down along the frame guide rail during the process of striking the rail sample, and can also effectively reduce the friction between the head and the guide rail.

[0015] (2) The inclined slot design on the carriage allows the striking head to move laterally along the rail during the second half of the striking process. The friction between the striking block and the oxide scale is used to scrape off the oxide scale.

[0016] (3) The striking device is equipped with a buffer spring, which can effectively buffer the striking force and keep the striking block in close contact with the surface of the rail sample during the lateral sliding process.

[0017] (4) The striking block is designed as a series of flexible splices. It can strike both sides of the rail head of the rail sample by using inertia, which greatly increases the striking area and effectively improves the efficiency of removing oxide scale.

[0018] (5) The left and right striking blocks are connected by torsion springs, so that after the striking is finished, the striking blocks can automatically return to the "inverted V" shape due to the force of the torsion spring, in preparation for the next striking.

[0019] (6) The striking surface of the striking block is designed in a tooth shape, which can effectively reduce the contact area, increase the striking contact force, and improve the oxide scale removal effect.

[0020] (7) The design of the counterweights on both sides can effectively increase the inertial force on both sides when striking, thereby increasing the striking force on both sides and improving the oxide scale removal effect.

[0021] (8) This device replaces the traditional method of manually knocking off the oxide scale of rail samples, which not only improves the efficiency of oxide scale removal but also ensures the safety of on-site operators and helps to improve the accuracy and precision of rail heat treatment tests. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a schematic diagram of the sliding component in this invention; Figure 3 This is a schematic diagram of the mating groove in the present invention; Figure 4 This is a schematic diagram of the striking component in this invention; Reference numerals: 1. Carriage assembly; 2. Striking assembly; 3. Connecting guide rod; 4. Inclined groove assembly; 5. Buffer spring; 6. Spring seat; 7. Mating groove; 8. Stopping ring; 9. Rail; 11. Carriage base plate; 12. Carriage side plate; 13. Carriage end plate; 14. Support plate; 15. Sliding component; 16. Guide wheel; 21. Connecting plate; 22. Top striking part; 23. Lateral striking part; 24. Inertial striking part; 25. Inertial striking component; 26. Counterweight. Detailed Implementation

[0023] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0024] Any feature disclosed in this specification (including any appended claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0025] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a predetermined orientation, or be constructed and operated in a predetermined orientation. Therefore, they should not be construed as limitations on this invention.

[0026] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0027] Example 1 like Figures 1-4 As shown, the present invention provides a technical solution: A striking device for removing oxide scale from rail samples includes a carriage assembly 1 and a striking assembly 2. The striking assembly 2 is provided with an inertial striking element 25 that can rotate and reset. The striking assembly 2 and the carriage assembly 1 are connected as one unit by a connecting guide rod 3. The carriage assembly 1 is provided with a sloping groove assembly 4 that limits the position of the connecting guide rod 3. The connecting guide rod 3 is slidably disposed in the sloping groove assembly 4, so that the connecting guide rod 3 can move relative to the carriage assembly 1 in the radial direction of the connecting guide rod 3.

[0028] Based on the above structure, the carriage assembly 1 is connected to the external power assembly. Under the action of the power assembly, the carriage assembly 1 moves in a direction perpendicular to the surface of the rail 9. When the striking assembly 2 contacts the surface of the rail 9, the inertial striking component 25 continues to move downward under the action of inertia, so that the inertial striking component 25 strikes the top side of the rail 9, causing the oxide scale generated on the surface to be knocked off. At the same time, since each of the carriage assembly 1 is provided with a sloping groove assembly 4, the carriage assembly 1 remains stationary during the downward movement of the power assembly. The connecting guide rod 3 is at a relative distance from the carriage assembly 1, and the oxide layer on the top of the rail 9 is scraped off by friction.

[0029] As an example, a buffer assembly may also be provided between the carriage assembly 1 and the striking assembly 2; the buffer assembly may include a buffer spring 5 and a spring seat 6; the connecting guide rod 3 is disposed in the spring seat 6, the spring seat 6 is disposed on the striking assembly 2, one end of the buffer spring 5 extends to the bottom position of the carriage assembly 1, and the other end is disposed in the spring seat 6 in an embedded manner.

[0030] Based on the above structure, the connecting guide rod 3 provides guidance for the buffer spring 5, which can effectively buffer the impact force and keep the impact block in close contact with the surface of the rail 9 sample during lateral sliding.

[0031] As an example, a mating groove 7 is provided at the bottom of the carriage assembly 1 to cooperate with the connecting guide rod 3. The mating groove 7 is an elongated hole. A stop ring 8 is provided at the end of the buffer spring 5 away from the spring seat 6. The size of the stop ring 8 is not less than the size of the mating groove 7. The end of the buffer spring 5 can be fixedly connected to the stop ring 8.

[0032] Based on the above structure, an elongated hole is provided at the bottom of the carriage assembly 1 to provide a foundation for the sliding of the connecting guide rod 3. At the same time, a stop ring 8 is provided at the end of the buffer spring 5. On the one hand, it can provide support for the buffer spring 5. On the other hand, the stop ring 8 is slidably connected to the mating groove 7. When the connecting guide rod 3 slides, the buffer spring 5 can slide together to ensure the stability of the entire buffer assembly.

[0033] As an example, the buffer assembly can be symmetrically arranged along the center position of the carriage assembly 1.

[0034] Based on the above structure, the two-sided bracing arrangement of the buffer spring 5 can ensure the stability of the overall structure during the striking action. The upper side is slidably assembled at the bottom of the slide, and the lower side is installed in the spring seat 6. It mainly serves to buffer the striking force and keep the striking block in close contact with the surface of the rail 9 sample during the lateral sliding process.

[0035] As an example, the carriage assembly 1 may include a carriage base plate 11, carriage side plates 12, and carriage end plates 13; the carriage side plates 12 and carriage end plates 13 are symmetrically arranged on the carriage base plate 11, and the carriage end plates 13 are arranged between the two carriage side plates 12; the carriage side plates 12 are generally V-shaped, and a receiving plate 14 that is connected to an external power component is provided at the center of adjacent carriage side plates 12; The inclined groove assembly 4 is disposed between adjacent sliding side plates, and a sliding member 15 is disposed in the inclined groove assembly 4; both ends of the sliding member 15 are fixed in the inclined brace assembly by bolts, and the sliding member 15 can move along the length direction of the inclined brace assembly.

[0036] Based on the above structure, this solution sets a receiving plate 14 at the center of the carriage side plate 12, which can make the connecting guide rods 3 on both sides more evenly stressed when the external power component is in operation, and the sliding part 15 provides a foundation for subsequent oxide layer scraping.

[0037] As an example, the top of the connecting guide rod 3 is provided with an external thread, and the sliding member 15 is provided with a threaded groove; the connecting guide rod 3 and the sliding member 15 are threadedly connected.

[0038] Based on the above structure, when the sliding component 15 moves, it drives the connecting guide rod 3 and the striking component 2 directly connected to the connecting guide rod 3 to move synchronously, thereby achieving side-sliding scraping of materials.

[0039] As an example, at least two sets of guide wheels 16 are provided on the carriage end plate 13, and the guide wheels 16 are arranged along the length direction of the sliding end plate.

[0040] Based on the above structure, when the external power structure drives the receiving plate 14 to move, the guide wheel 16 provides vertical guidance for the entire sliding assembly, enabling it to slide precisely in the predetermined direction; specifically, during the process of striking the steel rail 9 sample, the guide wheel 16 can slide up and down along the frame guide rail, driving the entire striking assembly 2 to move up and down to achieve continuous striking.

[0041] As an example, the striking assembly 2 may include a connecting plate 21, a top striking part 22, and a side striking part 23. The top striking part 22 is fixedly connected to the connecting plate 21, and the side striking parts 23 are arranged on both sides of the top striking part 22 along the center position of the top striking part 22. The side striking parts 23 are hinged at both ends of the top striking part 22 by torsion springs. The side striking parts 23 are arranged at a predetermined angle to the vertical plane. Specifically, the angle between the side striking parts 23 and the vertical plane is in the range of 30~60°, so that the two side striking parts 23 form an inverted V-shaped structure.

[0042] Based on the above structure, in this solution, the lateral striking part 23 is hinged to the top striking part 22 by a torsion spring, which allows the lateral striking part 23 to continue moving downward when the top striking part 22 contacts the top of the rail 9 and strike the lateral position of the top of the rail 9. After the striking is completed, the lateral striking part 23 can return to the "inverted V" shape to prepare for the next striking, thus improving the overall striking effect on the oxide layer.

[0043] As an example, the lateral striking part 23 may include multiple sets of inertial striking parts 24, each set of inertial striking parts 24 may be hinged by a torsion spring; each set of inertial striking parts 24 includes multiple inertial striking elements 25; adjacent inertial striking elements 25 may be hinged by a torsion spring.

[0044] Based on the above structure, this solution sets up multiple sets of mutually hinged inertial impact parts 24, and sets up multiple mutually hinged inertial impact components 25 in each inertial impact part 24, so that each inertial impact component 25 presents a spring-loaded "flexible" structure; in this way, each time the power component impacts to remove the oxide layer, a large degree of randomness will be generated, so that the angle and component of each impact of the inertial impact component 25 will be deviated, and the oxide layer can be removed from all directions after multiple impacts.

[0045] As an example, a counterweight 26 is provided on the end of the lateral striking part 23 away from the top striking part 22.

[0046] Based on the above structure, by setting a counterweight 26 at the end, the inertial force on both sides during the tapping can be effectively increased, thereby increasing the tapping force on both sides and improving the oxide scale removal effect.

[0047] As an example, the contact portions of the top striking part 22 and the side striking part 23 with the rail 9 are both designed with tooth-shaped structures, which can effectively reduce the contact area, increase the striking contact force, and improve the oxide scale removal effect.

[0048] Instructions for use: After heating the rail sample 9 to a certain temperature, remove it from the heating furnace (it can be handled manually or by a robotic arm). Place it on the sample platform with the rail top facing upwards, and use a clamping device to fix the sample in place to prevent it from slipping during the tapping process. After the sample is placed, observe the oxide scale formed on the sample surface. When a large amount of oxide scale has formed, start the device. Press the start button, and the PLC controls the solenoid valve of the cylinder. Compressed air enters the tail side of the cylinder, causing the cylinder to extend. At this time, the tapping assembly 2 moves vertically downwards under the action of the cylinder. The top tapping part 22 of the tapping assembly 2 first contacts the top of the rail, and then the side tapping part 23 contacts both sides of the rail head due to inertia. As the cylinder continues to move downwards, the buffer spring 5 is compressed, and the sliding part 15 connected to the connecting guide rod 3 moves upwards along the inclined groove, driving the entire tapping head to move laterally along the sample, scraping off the oxide scale on the sample surface. Upon reaching the left limit position of the inclined groove, compressed air enters the cylinder head side via the PLC-controlled solenoid valve, causing the cylinder to retract (move upwards). Due to the force of the compression spring, the sliding component 15 connected to the guide rod 3 moves downwards along the inclined groove, driving the entire striking assembly 2 to move laterally in the opposite direction of the sample and reset, while simultaneously resetting the spring. Until the spring is fully reset, as the cylinder continues to rise, the entire striking assembly 2 is lifted back to its initial position, completing one striking cycle, which takes approximately 2-3 seconds. Under the control of the PLC, the above actions are repeated cyclically until the oxide scale on the sample surface is completely removed. Then, the stop button is pressed to shut down the device.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A striking device for removing oxide scale from rail samples, characterized in that, The assembly includes a carriage assembly (1) and a striking assembly (2). The striking assembly (2) is provided with an inertial striking element (25) that can rotate and reset. The striking assembly (2) and the carriage assembly (1) are connected as one unit by a connecting guide rod (3). The carriage assembly (1) is provided with a sloping groove assembly (4) that limits the connecting guide rod (3). The connecting guide rod (3) is slidably disposed in the sloping groove assembly (4) so ​​that the connecting guide rod (3) can move relative to the carriage assembly (1) in the radial direction of the connecting guide rod (3).

2. The tapping device for removing oxide scale from rail samples according to claim 1, characterized in that: A buffer assembly is also provided between the carriage assembly (1) and the striking assembly (2); the buffer assembly includes a buffer spring (5) and a spring seat (6); the connecting guide rod (3) is disposed in the spring seat (6), the spring seat (6) is disposed on the striking assembly (2), one end of the buffer spring (5) extends to the bottom position of the carriage assembly (1), and the other end is disposed in the spring seat (6) in an embedded manner.

3. The tapping device for removing oxide scale from rail samples according to claim 2, characterized in that: The bottom of the carriage assembly (1) is provided with a mating groove (7) that mates with the connecting guide rod (3). The mating groove (7) is an elongated hole. The end of the buffer spring (5) away from the spring seat (6) is provided with a stop ring (8). The size of the stop ring (8) is not less than the size of the mating groove (7). The end of the buffer spring (5) is fixedly connected to the stop ring (8).

4. The tapping device for removing oxide scale from rail samples according to claim 1, characterized in that: The carriage assembly (1) includes a carriage base plate (11), carriage side plates (12) and carriage end plates (13); the carriage side plates (12) and carriage end plates (13) are symmetrically arranged on the carriage base plate (11), and the carriage end plates (13) are arranged between the two carriage side plates (12); the carriage side plates (12) are generally V-shaped, and a receiving plate (14) for cooperating and connecting with an external power component is provided at the center of adjacent carriage side plates (12).

5. The tapping device for removing oxide scale from rail samples according to claim 1, characterized in that: The inclined groove assembly (4) is disposed between adjacent sliding side plates, and a sliding member (15) is disposed in the inclined groove assembly (4); both ends of the sliding member (15) are fixed in the inclined brace assembly by bolts, and the sliding member (15) can move along the length direction of the inclined brace assembly.

6. The tapping device for removing oxide scale from rail samples according to claim 5, characterized in that: The top of the connecting guide rod (3) is provided with an external thread, and the sliding member (15) is provided with a threaded groove; the connecting guide rod (3) and the sliding member (15) are threadedly connected.

7. The striking device for removing oxide scale from rail specimens according to any one of claims 4 to 6, characterized in that: At least two sets of guide wheels (16) are provided on the slide end plate (13), and the guide wheels (16) are arranged along the length direction of the slide end plate.

8. The tapping device for removing oxide scale from rail specimens according to any one of claims 4 to 6, characterized in that: The striking assembly (2) includes a connecting plate (21), a top striking part (22), and a side striking part (23). The top striking part (22) is fixedly connected to the connecting plate (21). The side striking parts (23) are arranged on both sides of the top striking part (22) along the center position of the top striking part (22). The side striking parts (23) are hinged at both ends of the top striking part (22) by torsion springs. The side striking parts (23) are set at a predetermined angle with the vertical plane, so that the two side striking parts (23) form an inverted V-shaped structure.

9. The tapping device for removing oxide scale from rail samples according to claim 8, characterized in that: The lateral striking part (23) includes multiple sets of inertial striking parts (24), each set of inertial striking parts (24) is hinged by a torsion spring; each set of inertial striking parts (24) includes multiple inertial striking elements (25); adjacent inertial striking elements (25) are hinged by a torsion spring.

10. The tapping device for removing oxide scale from rail samples according to claim 9, characterized in that: A counterweight (26) is provided on the end of the lateral striking part (23) away from the top striking part (22).

Images