A device for removing rust from the web of an I-beam before welding

Abstract

The application belongs to the technical field of railway engineering machinery equipment manufacturing, and particularly relates to a device for removing rust from the web of an I-shaped rail before welding, which comprises a rust removal rack, a grinding wheel transmission mechanism, a grinding wheel adjusting mechanism, a rail sliding mechanism and a hand-held adjusting rod arranged on the rust removal rack, the grinding wheel transmission mechanism is connected with the grinding wheel adjusting mechanism, and the rail sliding mechanism is in contact with the hand-held adjusting rod; the grinding wheel transmission mechanism is used for driving the grinding wheel to rotate, the grinding wheel adjusting mechanism is used for adjusting the distance between the grinding wheels, and the rail sliding mechanism drives the overall structure to slide on the rail. The application adopts a single motor to simultaneously drive two grinding wheels, is light in weight, and can be easily carried by two people on site. The operation is simple, the feeding amount is self-adaptively controlled by a spring, and the opening and closing of the two grinding wheels can be controlled by rotating a hand-held handle to pull a separating disc. According to the on-site wear condition of the grinding wheel, the hand-held adjusting rod is shaken to realize the up-down position adjustment of the grinding wheel, so that the rust removal effect of the web is achieved under the condition that the grinding wheel is unevenly worn.

Description

Technical Field

[0001] This invention belongs to the field of railway engineering machinery and equipment manufacturing technology, specifically relating to a device for removing rust from the rail web before welding I-beam rails. Background Technology

[0002] Currently, two main methods are used for on-site rail welding: flash welding and aluminothermic welding. Before flash welding, rust removal of the rail web reduces contact resistance and improves conductivity and weld quality. Before aluminothermic welding, rust removal of the rail web prevents slag inclusions and porosity. However, in China, most rail webs are currently ground manually using handheld grinding wheels, which is inefficient and labor-intensive. Summary of the Invention

[0003] To address the aforementioned problems in the existing technology, a lightweight and highly efficient device for rust removal from the web of I-beam rails before welding is proposed. The specific solution is as follows:

[0004] A device for removing rust from the web of an I-beam rail before welding includes a rust removal frame. The frame is equipped with a grinding wheel drive mechanism, a grinding wheel adjustment mechanism, a rail sliding mechanism, and a hand-held adjustment rod. The grinding wheel drive mechanism is connected to the grinding wheel adjustment mechanism, and the rail sliding mechanism is in contact with the hand-held adjustment rod. The grinding wheel drive mechanism drives the grinding wheel to rotate, the grinding wheel adjustment mechanism adjusts the spacing between the grinding wheels, and the rail sliding mechanism causes the entire structure to slide on the rail.

[0005] Furthermore, a motor mounting bracket is fixed on the rust removal frame, and the drive motor is fixed on the motor mounting bracket.

[0006] Furthermore, the hand-held adjustment rod is connected to the rust removal machine frame via a pin. The hand-held adjustment rod is equipped with a raised posture fixing plate buckle and a posture adjustment handle. The raised posture fixing plate buckle and the posture adjustment handle are connected by a pin. The pin slides in the waist-shaped groove on the posture adjustment handle. A hand handle is provided at the end of the hand-held adjustment rod.

[0007] Furthermore, the grinding wheel transmission mechanism includes a belt drive pulley, a belt driven pulley, a belt, a grinding wheel shaft, and a grinding wheel. The output shaft of the drive motor is connected to the belt drive pulley. The belt drive pulley is connected to two belt driven pulleys via a belt. Each belt driven pulley is connected to a grinding wheel shaft. The grinding wheel shaft is fixed in a grinding wheel shaft fixing sleeve by a bearing. One end of the grinding wheel shaft is connected to a grinding wheel.

[0008] Furthermore, the belt drive pulley is a double-row pulley, and the belt driven pulley is a single-row pulley.

[0009] Furthermore, the grinding wheel adjustment mechanism includes a grinding wheel rocker arm, a grinding wheel rocker arm sliding wheel, and a separating disc. Each grinding wheel's corresponding grinding wheel shaft fixing sleeve is fixed to a grinding wheel rocker arm by screws. The two grinding wheel rocker arms cross to form a scissor structure, and the tail of the grinding wheel rocker arm is equipped with a grinding wheel rocker arm sliding wheel. The grinding wheel rocker arm sliding wheel moves in the groove of the separating disc. The separating disc is fixed to the rust removal machine frame by a pin. One side of the separating disc is connected to a separating disc pull line, and the other end of the separating disc pull line is directly connected to the hand handle.

[0010] Furthermore, the center of the drive motor coincides with the center of the grinding wheel rocker arm.

[0011] Furthermore, one end of each of the two grinding wheel rocker arms is connected to the other via a return spring.

[0012] Furthermore, the rail sliding mechanism includes a bearing guide wheel assembly, a first lifting adjustment link, a second lifting adjustment link, and a third lifting adjustment link. The first and third lifting adjustment links are connected inside the rust removal frame by pins. The two sets of bearing guide wheel assemblies are fixed to the first and third lifting adjustment links respectively by pins. The first and third lifting adjustment links are connected by the second lifting adjustment link. A lifting adjustment roller is installed at the other end of the first lifting adjustment link.

[0013] The advantages of this application are:

[0014] 1. In addition to radial compensation, this application addresses the wear of the grinding wheel during the grinding process by adding adjustable vertical position of the grinding wheel. Furthermore, the radial compensation adopts a spring-based adaptive compensation method, eliminating the need for manual adjustment. All adjustments are made via an adjustment rod, allowing for real-time adjustments during the grinding process without stopping the machine, thus increasing work efficiency and reducing labor intensity.

[0015] 2. This application uses a single motor to drive both grinding wheels simultaneously, which is lightweight and can be easily handled by two people on site.

[0016] 3. This application is easy to operate. The spring adaptively controls the feed amount. The opening and closing of the two grinding wheels can be controlled simply by rotating the hand handle and pulling the separation disc.

[0017] 4. This application allows for adjustment of the grinding wheel's vertical position by cranking the hand-operated adjustment lever, based on the on-site wear condition of the grinding wheel, ensuring that the grinding wheel achieves the desired rust removal effect on the rail web even under uneven wear conditions. Attached Figure Description

[0018] Figure 1 Schematic diagram of rail rust removal device

[0019] Figure 2 To hide the view of the rust removal rack.

[0020] Figure 3This is a top sectional view.

[0021] Figures 4-5 Schematic diagram of grinding wheel opening

[0022] Figures 6-7 Schematic diagram of grinding wheel closing

[0023] Figure 8 This is a schematic diagram of the lower limit position of the grinding wheel.

[0024] Figure 9 Diagram of the extreme position posture on the grinding wheel

[0025] In the attached image:

[0026] 1-Handle handle, 2-Handle adjustment rod, 3-Lift posture fixing plate buckle, 4-Posture adjustment handle, 5-Rust removal frame, 6-Bearing guide wheel assembly, 7-Drive motor, 8-Motor mounting base, 9-Reset spring, 10-Belt driven pulley, 11-First lifting adjustment linkage, 12-Belt, 13-Grinding wheel shaft fixing sleeve, 14-Grinding wheel shaft, 15-Grinding wheel, 16-Second lifting adjustment linkage, 17-Third lifting adjustment linkage, 18-Belt drive pulley, 19-Separation disc, 20-Grinding wheel rocker arm sliding wheel, 21-Grinding wheel rocker arm, 22-Lift adjustment roller, 23-Separation disc pull cable, 24-Rail. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this application, it should be noted that the terms "upper," "vertical," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this application 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 on this application. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Example 1

[0033] like Figures 1-3 As shown, a device for removing rust from the web of an I-beam rail before welding includes a rust removal frame 5. The frame 5 is equipped with a grinding wheel 15 transmission mechanism, a grinding wheel 15 adjustment mechanism, a rail 24 sliding mechanism, and a hand-held adjustment rod 2. The grinding wheel 15 transmission mechanism is connected to the grinding wheel 15 adjustment mechanism, and the rail 24 sliding mechanism is in contact with the hand-held adjustment rod 2. The grinding wheel 15 transmission mechanism drives the grinding wheel 15 to rotate, the grinding wheel 15 adjustment mechanism adjusts the spacing between the grinding wheels 15, and the rail 24 sliding mechanism causes the entire structure to slide on the rail 24.

[0034] A motor mounting base 8 is fixed on the rust removal machine frame 5, and the drive motor 7 is fixed on the motor mounting base 8.

[0035] The hand-held adjustment rod 2 is connected to the rust removal frame 5 via a pin. The hand-held adjustment rod 2 is equipped with a raised posture fixing plate buckle 3 and a posture adjustment handle 4. The raised posture fixing plate buckle 3 and the posture adjustment handle 4 are connected by a pin. The pin slides in the waist-shaped groove on the posture adjustment handle 4. The end of the hand-held adjustment rod 2 is provided with a hand handle 1.

[0036] The grinding wheel 15 transmission mechanism includes a belt drive pulley 18, a belt driven pulley 10, a belt 12, a grinding wheel shaft 14, and a grinding wheel 15. The output shaft of the drive motor 7 is connected to the belt drive pulley 18. The belt drive pulley 18 is connected to two belt driven pulleys 10 through the belt 12. Each belt driven pulley 10 is connected to a grinding wheel shaft 14. The grinding wheel shaft 14 is fixed in the grinding wheel shaft fixing sleeve 13 by bearings. One end of the grinding wheel shaft 14 is connected to the grinding wheel 15.

[0037] The belt drive pulley 18 is a double-row pulley, and the belt driven pulley 10 is a single-row pulley.

[0038] The grinding wheel 15 adjustment mechanism includes a grinding wheel rocker arm 21, a grinding wheel rocker arm sliding wheel 20, and a separating disc 19. Each grinding wheel 15 has a corresponding grinding wheel shaft fixing sleeve 13 fixed to a grinding wheel rocker arm 21 by screws. The two grinding wheel rocker arms 21 cross to form a scissor structure, and the grinding wheel rocker arm sliding wheel 20 is installed at the tail of the grinding wheel rocker arm 21. The grinding wheel rocker arm sliding wheel 20 moves in the groove of the separating disc 19. The separating disc 19 is fixed to the rust removal frame 5 by a pin. One side of the separating disc 19 is connected to one end of a separating disc pull line 23, and the other end of the separating disc pull line 23 is directly connected to the handle 1.

[0039] The center of the drive motor 7 coincides with the center of the grinding wheel rocker arm 21.

[0040] One end of each of the two grinding wheel rocker arms 21 is connected to the other via a return spring 9.

[0041] The rail 24 sliding mechanism includes a bearing guide wheel assembly 6, a first lifting adjustment link 11, a second lifting adjustment link 16, and a third lifting adjustment link 17. The first lifting adjustment link 11 and the third lifting adjustment link 17 are connected inside the rust removal frame 5 by pins. The two sets of bearing guide wheel assemblies 6 are fixed to the first lifting adjustment link 11 and the third lifting adjustment link 17 by pins respectively. The first lifting adjustment link 11 and the third lifting adjustment link 17 are connected by the second lifting adjustment link 16. A lifting adjustment roller 22 is installed at the other end of the first lifting adjustment link 11.

[0042] The working principle of this application is as follows:

[0043] Step 1: By operating the rotating handle 1, the pull line pulls the separating disc 19 to separate the two grinding wheels 15. Then, the device is placed on the steel rail 24 to be derusted and guided by the two sets of bearings of the device to slide.

[0044] Step 2: Press the start button on the handrail. A motor drives the pulley, which in turn drives the grinding wheels 15 on both sides to start rotating.

[0045] Step 3: Slowly loosen the rotating handle 1, allowing the grinding wheels 15 on both sides to slowly approach the rail 24.

[0046] Step 4: During the grinding process, the feed of the grinding wheel 15 is controlled by the front spring. During this process, the device is directly pushed back and forth to complete the longitudinal grinding. Alternatively, the up and down position of the grinding wheel 15 can be adjusted by pressing down or raising the hand adjustment rod 2 to ensure complete rust removal of the rail web.

[0047] Step 5: When the rust removal is complete, release the start button, the grinding wheel 15 will stop rotating, rotate the handle 1 to separate the two grinding wheels 15, move the device to another steel rail 24 to be rusted, and repeat the above operation.

[0048] This application uses a single motor to simultaneously drive both grinding wheels 15, resulting in a lightweight design that can be easily handled by two people on-site. Operation is simple; the spring adaptively controls the feed rate, and the opening and closing of both grinding wheels 15 can be controlled by simply rotating the handle 1 and pulling the separation disc 19. The application also allows for vertical adjustment of the grinding wheel 15's position by cranking the adjustable lever 2, based on the wear condition of the grinding wheels 15, ensuring that even with uneven wear, the grinding wheels 15 achieve the desired rust removal effect on the rail web.

[0049] Example 2

[0050] like Figures 1-3 As shown, the center of the drive motor 7 coincides with the center of the grinding wheel rocker arm 21, ensuring that the center distance between the driven pulley 10 and the driving pulley 18 remains unchanged when adjusting the opening and closing of the grinding wheel 15. The driving pulley 18 is a double-row pulley, directly connected to the drive motor 7, and transmits power to the driven pulley 10 via the belt 12. The driven pulleys 10 on both sides are single-row pulleys. The driven pulleys 10 transmit power to the grinding wheel 15 through the grinding wheel shaft 14, which is fixed to the grinding wheel shaft fixing sleeve 13 by bearings. In the middle, the grinding wheel shaft fixing sleeve 13 is fixed to the grinding wheel rocker arm 21 by screws; the two grinding wheel rocker arms 21 are fixed at one center, forming a scissor structure. The tail of the grinding wheel rocker arm 21 is equipped with a grinding wheel rocker arm sliding wheel 20, which moves in the sliding groove of the separating disc 19. The separating disc 19 is fixed to the rust removal frame 5 by a pin. The angle of the grinding wheel rocker arm 21 can be directly controlled by adjusting the angle of the separating disc 19, thereby adjusting the opening and closing of the grinding wheel 15. The opening and closing of the grinding wheel 15 are as follows: Figures 4-7 As shown; the angle of the separation disc 19 is controlled by the separation disc pull cable 23, and the other end of the separation disc pull cable 23 is directly connected to the handle 1. The operation can be completed by rotating the handle 1; the separation disc 19 is reset by the reset spring 9. During the entire grinding process, the grinding feed of the grinding wheel 15 is achieved by the reset spring 9.

[0051] During the rust removal and grinding process, the rust removal device is placed on top of rail 24, and the bearing guide wheel assembly 6 contacts the top of rail 24 to achieve overall sliding of the device. Two sets of bearing guide wheel assemblies 6 are fixed to the first lifting adjustment rod 11 and the third lifting adjustment rod 17 respectively via pins. The first lifting adjustment rod 11 and the third lifting adjustment rod 17 are connected inside the rust removal frame 5 via pins. Simultaneously, the first lifting adjustment rod 11 and the third lifting adjustment rod 17 are also connected via the second lifting adjustment rod 16. A lifting adjustment roller 22 is installed at the other end of the first lifting adjustment rod 11. Under the weight of the entire device, the lifting adjustment roller 22 contacts the upper surface of the hand-held adjustment rod 2. The hand-held adjustment rod 2 is connected to the rust removal frame 5 via a pin. This structure only requires operation... During operation, pressing down or raising the hand-held adjusting rod 2 raises and lowers the device, thereby adjusting the vertical position of the grinding wheel 15 at the rail web. The hand-held adjusting rod 2 is equipped with a raised posture fixing plate 3 and a posture adjusting handle 4. The raised posture fixing plate 3 and the posture adjusting handle 4 are connected by a pin, which slides in the slot on the posture adjusting handle 4. By pressing down the raised posture fixing plate 3, the raised adjusting roller is separated from the upper surface of the hand-held adjusting rod 2, and the posture adjusting handle 4 contacts the raised adjusting roller, raising the rust removal device. In this posture, the grinding wheel 15 will not interfere with the studs of the fixed rail 24, and the device can be directly pushed to the next grinding location without manual handling, greatly reducing the labor intensity of transportation. The upper and lower limit positions of the device are as follows: Figure 8 , Figure 9 As shown.

Claims

1. A device for removing rust from the web of a rail prior to welding, characterized in that: Including the rust removal frame (5), the rust removal frame (5) is provided with abrasive wheel transmission mechanism, abrasive wheel adjusting mechanism, rail sliding mechanism and hand-held adjusting rod (2), the abrasive wheel transmission mechanism is connected with abrasive wheel adjusting mechanism, the rail sliding mechanism is contacted with hand-held adjusting rod (2);Abrasive wheel transmission mechanism is used to drive abrasive wheel (15) rotation, abrasive wheel adjusting mechanism is used to adjust the spacing between abrasive wheel (15), the rail sliding mechanism drives the overall structure to slide on the rail (24); The hand-held adjusting rod (2) is connected with the rust removal frame (5) through the pin shaft, the hand-held adjusting rod (2) is installed with the lifting posture fixed plate buckle (3) and the posture adjusting handle (4), the lifting posture fixed plate buckle (3) is connected with the posture adjusting handle (4) through the pin, the pin is slid in the waist-shaped slot on the posture adjusting handle (4), the hand-held adjusting rod (2) is provided with the hand-held handle (1) at the end; The abrasive wheel adjusting mechanism includes abrasive wheel rocker arm (21), abrasive wheel rocker arm sliding wheel (20) and separation disc (19), each abrasive wheel (15) corresponding abrasive wheel shaft fixing sleeve (13) is fixed on a abrasive wheel rocker arm (21) through screw respectively, two abrasive wheel rocker arms (21) cross to form a scissors structure, and the abrasive wheel rocker arm (21) tail is provided with abrasive wheel rocker arm sliding wheel (20), the abrasive wheel rocker arm sliding wheel (20) moves in the sliding slot of the separation disc (19), the separation disc (19) is fixed on the rust removal frame (5) through the pin shaft, one side of the separation disc (19) is connected with separation disc pull wire (23) one end, the other end of the separation disc pull wire (23) is directly connected with the hand-held handle (1); One end of two abrasive wheel rocker arms (21) is connected with each other through the return spring (9); The rail sliding mechanism includes bearing guide wheel group (6), first lifting adjusting connecting rod (11), second lifting adjusting connecting rod (16) and third lifting adjusting connecting rod (17), the first lifting adjusting connecting rod (11) and the third lifting adjusting connecting rod (17) are connected in the rust removal frame (5) through the pin shaft, two groups of bearing guide wheel groups (6) are fixed on the first lifting adjusting connecting rod (11) and the third lifting adjusting connecting rod (17) through the pin shaft respectively, the first lifting adjusting connecting rod (11) and the third lifting adjusting connecting rod (17) are connected through the second lifting adjusting connecting rod (16), the lifting adjusting roller (22) is installed on the other end of the first lifting adjusting connecting rod (11); By pressing the lifting posture fixed plate buckle (3), the lifting adjusting roller is separated from the upper surface of the hand-held adjusting rod (2), and the posture adjusting handle (4) is contacted with the lifting adjusting roller, and the rust removal device is lifted.

2. A device for removing rust from the web of a rail prior to welding according to claim 1, characterized in that: The rust removal frame (5) is fixed with the motor mounting seat (8), and the driving motor (7) is fixed on the motor mounting seat (8).

3. A device for removing rust from the web of a rail prior to welding according to claim 1, characterized in that: The sand wheel transmission mechanism comprises a belt driving wheel (18), a belt driven wheel (10), a belt (12), a sand wheel shaft (14) and a sand wheel (15), the output shaft of the driving motor (7) is connected with the belt driving wheel (18), the belt driving wheel (18) is connected with two belt driven wheels (10) through the belt (12), each belt driven wheel (10) is connected with a sand wheel shaft (14), the sand wheel shaft (14) is fixed in the sand wheel shaft fixing sleeve (13) through a bearing, and the sand wheel shaft (14) is connected with the sand wheel (15) at one end.

4. A device for removing rust from the web of a rail prior to welding according to claim 3, characterized in that: The belt driving wheel (18) is a double-row belt wheel, and the belt driven wheel (10) is a single-row belt wheel.

5. A device for removing rust from the web of a rail prior to welding according to claim 2, characterized in that: The center of the driving motor (7) coincides with the center of the sand wheel rocker arm (21).

6. A method of rust removal based on the apparatus of any one of claims 1-5, characterized by: Comprise Step 1: by operating the rotating hand-held handle (1), pull the wire to pull the separating disc (19) to separate the two side sand wheels (15), then place the device on the steel rail (24) to be rusted, and guide sliding of the device by two groups of bearings; Step 2: press the starting button of the handle, one motor drives the belt pulley, and simultaneously drives the two side sand wheels (15) to start rotating; Step 3: slowly release the rotating hand-held handle (1), so that the two side sand wheels (15) slowly approach the steel rail (24); Step 4: during the grinding process, the feeding amount of the sand wheel (15) is controlled by the front spring, in this process, the device is directly pushed to move back and forth to complete longitudinal grinding, or the sand wheel (15) is adjusted in position up and down by pressing down or lifting the hand-held adjusting rod (2), so as to ensure that the rust removal of the rail waist part is complete; By pressing the raised posture fixing plate buckle (3), the raised adjusting roller is separated from the upper surface of the hand-held adjusting rod (2), and the posture adjusting handle (4) is in contact with the raised adjusting roller, the rust removal device is lifted, and the device is directly pushed to the next grinding position; Step 5: when the rust removal is completed, the starting button is released, the sand wheel (15) stops rotating, the rotating hand-held handle (1) is released, the two side sand wheels (15) are separated, the device is moved to another place of the steel rail (24) to be rusted, and the above operation is repeated.

Images