Feeding device for tamping machine

Abstract

The invention relates to a feeding device for a tamping machine, and relates to the field of tamping coking, the feeding device comprises an equipment body, a feeding assembly and a plurality of feeding assemblies, the equipment body comprises a coal box and a plurality of tamping hammers, a feeding port is formed in the side wall of the coal box, the tamping hammers are arranged in the coal box, the feeding assembly comprises a feeding part and a moving part, and the moving part is arranged on the feeding assembly. The feeding part is arranged below a discharging port of the coal storage tower and comprises a feeding barrel, the top of the feeding barrel communicates with the discharging port of the coal storage tower through a conveying pipe, and the moving part is used for driving the feeding barrel to move in the horizontal direction; the feeding assemblies are arranged on the side wall of the coal box at intervals, each feeding assembly comprises a feeding pipe, a feeding part and a transmission part, one end of each feeding pipe is arranged below the feeding cylinder, the other end of each feeding pipe is communicated with the feeding port, the feeding parts are arranged in the feeding pipes, the transmission parts are arranged in the coal box, and the tamping hammer drives the feeding parts to feed pulverized coal into the coal box through the transmission parts. The feeding amount of pulverized coal can be automatically controlled, and it is guaranteed that the density of coal cakes is uniform.

Description

Technical Field

[0001] The present application relates to the field of tamping coking, and in particular to a feeding device for a tamping machine. Background Art

[0002] The tamping coking technology is a coking technology that uses a tamping machine to pound the coking blend coal into a coal cake slightly smaller than the carbonization chamber according to the size of the carbonization chamber according to the different uses of coke, and then pushes it into the carbonization chamber from the side of the coke oven for high-temperature dry distillation. The tamping machine plays an important role in this process.

[0003] A tamping machine is usually installed under a coal storage tower. Multiple feeders are installed at the outlet of the coal storage tower. During the tamping process, coal powder is fed into the coal box from different positions of the feed inlet by multiple feeders in multiple times.

[0004] However, if the density of the coal cakes is to be evenly distributed and not easy to crack or collapse, the staff is required to control the amount of coal powder put into the feeder each time, which is complicated and consumes a lot of manpower. Summary of the invention

[0005] In order to save manpower by eliminating the need for manual control of the amount of coal powder input, the present application provides a feeding device for a tamping machine.

[0006] The present application provides a feeding device for a tamping machine, which adopts the following technical solution: A feeding device for a tamping machine comprises an equipment body, a feeding assembly and a plurality of feeding assemblies, the equipment body comprises a coal box and a plurality of tamping hammers, a feeding port is provided on the side wall of the coal box, a plurality of the tamping hammers are arranged at intervals in the coal box, the feeding assembly comprises a feeding piece and a moving piece, a mounting frame is provided on the side wall of the coal box, the feeding piece is arranged below the discharge port of a coal storage tower, the feeding piece comprises a feeding barrel, a powder inlet is provided on the top of the feeding barrel, a discharge port is provided at the bottom of the feeding barrel, the powder inlet is connected to the discharge port of the coal storage tower through a telescopic conveying pipe, and the moving piece is provided on the mounting frame and is used to drive the feeding barrel to move in the horizontal direction; A plurality of the feeding assemblies are arranged on the side wall of the coal box at intervals in the horizontal direction, and each of the feeding assemblies includes a feeding pipe, a feeding member and a transmission member. One end of the feeding pipe is arranged below the feeding barrel, and the other end is connected with the feeding port. The feeding member is arranged in the feeding pipe, and the transmission member is arranged in the coal box. The tamping hammer drives the feeding member through the transmission member to put coal powder into the coal box.

[0007] By adopting the above technical scheme, coal powder continues to fall from the discharge port of the coal storage tower and enters the feed barrel through the feed pipe. The moving part will drive the feed barrel to move at a uniform speed in the horizontal direction, trying to ensure that the amount of coal powder falling into each feed pipe is the same. At the same time, as the tamping hammer moves up and down, the feeding part can be driven by the transmission part to transport the coal powder in the feed pipe to the coal box, so that the amount of coal powder transported to different positions in the coal box in the same time period is similar or even the same, so that the density of the coal cakes is as uniform as possible and not easy to crack or collapse. No workers are required to control it, saving manpower.

[0008] Optionally, the moving part includes a driving motor, a rotating rod, a guide rod and two moving blocks, the driving motor is arranged at one end of the mounting frame, the rotating rod is rotatably connected to the mounting frame and fixedly connected to the output shaft of the driving motor, the guide rod is fixed on the mounting frame, and the two moving blocks are fixedly connected to the side wall of the feeding barrel, one of the moving blocks is threadedly connected to the rotating rod, and the other moving block is slidably connected to the guide rod.

[0009] By adopting the above technical solution, during tamping, the drive motor is started, and the output shaft of the drive motor drives the rotating rod to rotate, driving the two moving blocks to drive the feeding barrel to move back and forth at a uniform speed along the setting direction of the guide rod, so that the coal powder can fall into each feed pipe, and the amount of coal powder entering each feed pipe is close.

[0010] Optionally, the feeding member includes a rotating shaft and a spiral plate, the rotating shaft and the spiral plate are both rotatably connected in the feeding pipe, and the spiral plate is coaxially fixedly connected to the rotating shaft.

[0011] By adopting the above technical solution, the rotating shaft is rotated, and the rotating shaft drives the spiral plate to rotate synchronously, which will push the coal powder in the feed pipe toward the tamping hammer so that it can fall into the coal box.

[0012] Optionally, the transmission member includes a ratchet and a plurality of pawls, one end of the rotating shaft extends into the coal box and is located between two adjacent tamping hammers, the ratchet is coaxially fixedly connected to the rotating shaft, a plurality of pawls are vertically spaced apart on the side walls of the tamping hammer, a telescopic rod is provided on the side walls of the tamping hammer, the telescopic rod corresponds to the pawls one by one, one end of the telescopic rod is hinged to the tamping hammer, and the other end is hinged to the pawl, and when the tamping hammer moves upward, the pawl is embedded in the tooth groove of the ratchet.

[0013] By adopting the above technical solution, when the tamping hammer moves upward, the telescopic rod is in an extended state, and the pawl can be embedded in the tooth groove of the ratchet. As the tamping hammer moves upward, the pawl can drive the ratchet to rotate, and the ratchet drives the rotating shaft and the spiral plate to rotate, pushing the coal powder in the feed pipe into the coal box without the need for workers to operate it; when the tamping hammer moves downward, the pawl will move toward the tamping hammer under the squeezing of the ratchet, and the telescopic rod will contract and will not drive the ratchet to rotate in the opposite direction.

[0014] Optionally, the feeding piece further includes a connecting rod and a plurality of partition plates, wherein the connecting rod is coaxially rotatably connected to the feeding barrel, and the plurality of partition plates are disposed in the feeding barrel and circumferentially disposed on the side wall of the connecting rod.

[0015] By adopting the above technical solution, multiple partition plates will divide the internal space of the feeding barrel into multiple chambers. When the feeding barrel moves, the connecting rod drives the multiple partition plates to rotate. When one of the chambers is connected to the discharge port, the coal powder will fall into the feeding pipe. When the connecting rod stops rotating, the coal powder in the feeding barrel will be blocked by the partition plates and will not fall. Therefore, when the feeding barrel moves in the opposite direction, the connecting rod stops rotating. When the feeding barrel returns to its initial position and moves again, the connecting rod rotates to avoid repeated distribution of coal powder into the feeding pipe.

[0016] Optionally, the feeding assembly further includes a rotating member, which includes a gear and a rack, the gear is coaxially fixedly connected to the connecting rod, and the rack is disposed on the mounting frame and meshingly connected to the gear.

[0017] By adopting the above technical solution, when the feeding barrel moves along the setting direction of the guide rod, the rack will drive the gear to rotate, and the gear will drive the connecting rod and the partition plate to rotate, so that the coal powder in the feeding barrel can fall into the feeding pipe without adding an additional power source.

[0018] Optionally, an electric telescopic rod is fixedly connected to the bottom of the rack, and the electric telescopic rod is arranged on the mounting frame. A first touch switch and a second touch switch are respectively arranged at both ends of the mounting frame. The first touch switch is electrically connected to the electric telescopic rod through a controller. When the first touch switch is turned on, the electric telescopic rod contracts; the second touch switch is also electrically connected to the electric telescopic rod through the controller. When the second touch switch is turned on, the electric telescopic rod extends.

[0019] By adopting the above technical solution, when the feeding barrel moves from one side of the mounting frame to the other side, the first touch switch is triggered, and the controller controls the electric telescopic rod to retract, and the rack moves down and is no longer meshed with the gear. At this time, the feeding barrel moves in the opposite direction, the connecting rod does not rotate, and the coal powder stops being put in. When the feeding barrel returns to its initial position, the second touch switch is triggered, and the controller controls the electric telescopic rod to extend, and the rack moves up, and is meshed with the gear again, and the coal powder continues to be put into the feeding pipe, which is automatically controlled and further saves manpower.

[0020] Optionally, a return spring is provided on the side wall of the tamping hammer, one end of the return spring is fixedly connected to the side wall of the tamping hammer, and the other end of the return spring is fixedly connected to the ratchet.

[0021] By adopting the above technical solution, when the tamping hammer moves downward, the pawl is squeezed by the ratchet and moves toward the tamping hammer, and the reset spring is in a compressed state. When the tamping hammer moves downward to the point where the pawl is no longer squeezed by the ratchet, the pawl will reset under the elastic action of the reset spring, so that when the tamping hammer moves upward again, it can still drive the ratchet to rotate, without the need for workers to adjust the pawl.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. Multiple partitions divide the internal space of the feeding barrel into multiple chambers. When the feeding barrel moves horizontally, the rack drives the gear to rotate, so that the connecting rod can drive multiple partitions to rotate with the gear. When one of the chambers is connected to the feeding port, the coal powder will fall into the feeding pipe. When the connecting rod stops rotating, the coal powder in the feeding barrel will be blocked by the partition and will not fall. 2. When the tamping hammer moves upward, the telescopic rod is in an extended state, and the pawl can be embedded in the tooth groove of the ratchet wheel. When the tamping hammer moves upward, the pawl can drive the ratchet wheel to rotate, and the ratchet wheel drives the rotating shaft and the spiral plate to rotate, pushing the coal powder in the feed pipe into the coal box; when the tamping hammer moves downward, the pawl will move towards the tamping hammer under the pressure of the ratchet wheel, and the telescopic rod will shrink, which will not drive the ratchet wheel to rotate in the opposite direction; 3. When the feeding barrel moves from one side of the mounting frame to the other side, the first touch switch will be triggered, and the controller will control the electric telescopic rod to retract, and the rack will move down and no longer mesh with the gear. At this time, the feeding barrel moves in the opposite direction, the connecting rod will not rotate, and the coal powder will stop being put in. When the feeding barrel returns to its initial position, the second touch switch will be triggered, and the controller will control the electric telescopic rod to extend, and the rack will move up and mesh with the gear again, and the coal powder will continue to be put into the feeding pipe to avoid repeated distribution of coal powder into the feeding pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the feeding device for the tamping machine of the present application; Figure 2is a cross-sectional view of a feeding device for a tamping machine of the present application; Figure 3 It is a schematic diagram of the structure of the transmission parts in the feeding device for the tamping machine of the present application; Figure 4 yes Figure 3 Enlarged view of part A.

[0024] Explanation of the accompanying drawings: 1. Equipment body; 11. Coal box; 111. Feed port; 12. Tamping hammer; 2. Feeding assembly; 21. Feeding piece; 211. Feeding barrel; 2111. Powder inlet; 2112. Discharge port; 212. Connecting rod; 213. Partition plate; 22. Moving piece; 221. Driving motor; 222. Rotating rod; 223. Guide rod; 224. Moving block; 23. Rotating piece; 231. Gear; 232. Rack; 3. Feeding assembly; 31. Feeding pipe; 32. Feeding piece; 321. Rotating shaft; 322. Screw plate; 33. Transmission piece; 331. Ratchet; 332. Ratchet; 4. Mounting frame; 5. Feeding pipe; 6. Electric telescopic rod; 7. First touch switch; 8. Second touch switch; 9. Telescopic rod; 10. Return spring. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-4 This application is described in further detail.

[0026] Reference Figure 1 and Figure 2 A feeding device for a tamping machine disclosed in an embodiment of the present application includes an equipment body 1, a feeding assembly 2 and a plurality of feeding assemblies 3. The equipment body 1 includes a coal box 11 and a plurality of tamping hammers 12. The coal box 11 is a hollow square body. A plurality of feeding ports 111 are arranged at intervals along the horizontal direction on the side wall of the coal box 11. The plurality of tamping hammers 12 are installed in the coal box 11 at intervals along the horizontal direction. A mounting frame 4 is fixedly installed on the side wall of the coal box 11. The feeding assembly 2 is arranged on the mounting frame 4 and is located below the discharge port of the coal storage tower. The plurality of feeding assemblies 3 are arranged at intervals along the horizontal direction on the side wall of the coal box 11 and correspond to the feeding ports 111 one by one.

[0027] Reference Figure 1 and Figure 2The feeding assembly 2 includes a feeding member 21, a moving member 22 and a rotating member 23, wherein the feeding member 21 includes a feeding barrel 211, a connecting rod 212 and a plurality of partition plates 213. The feeding barrel 211 is a hollow cylinder and is arranged in the horizontal direction. A powder inlet 2111 is provided at the top of the feeding barrel 211, and a discharge port 2112 is provided at the bottom. The powder inlet 2111 is connected to the discharge port 2112 of the coal storage tower through a retractable feeding pipe 5. In this embodiment, the feeding pipe 5 is a corrugated pipe. The connecting rod 212 is coaxially rotatably connected to the feeding barrel 211 in the horizontal direction. A plurality of partition plates 213 are fixedly installed on the side wall of the connecting rod 212 along the axis of the connecting rod 212. In this embodiment, four partition plates 213 are provided. The side wall of the partition plate 213 abuts against the inner wall of the feeding barrel 211, and the inside of the feeding barrel 211 is divided into four chambers.

[0028] The moving member 22 includes a driving motor 221, a rotating rod 222, a guide rod 223 and two moving blocks 224. The driving motor 221 is fixedly mounted on the mounting frame 4. The rotating rod 222 is rotatably connected to the mounting frame 4 and is fixedly connected to the output shaft of the driving motor 221. The guide rod 223 is fixedly mounted on the mounting frame 4, and its extending direction is the same as the arrangement direction of the multiple feeding assemblies 3. The two moving blocks 224 are welded to the outer side walls of the feeding barrel 211 on opposite sides, one of the moving blocks 224 is threadedly connected to the rotating rod 222, and the other moving block 224 is slidably connected to the guide rod 223.

[0029] The rotating member 23 includes a gear 231 and a rack 232. One end portion of the connecting rod 212 extends out of the feeding tube 211 and is coaxially fixedly connected to the gear 231. An electric telescopic rod 6 is fixedly installed on the mounting frame 4 in the vertical direction. The top of the electric telescopic rod 6 is welded to the rack 232. The extension direction of the rack 232 is the same as the extension direction of the guide rod 223. The gear 231 is meshed with the rack 232.

[0030] It should be supplemented that a first touch switch 7 and a second touch switch 8 are fixedly installed at both ends of the mounting frame 4, and the first touch switch 7 and the second touch switch 8 are electrically connected to the electric telescopic rod 6 through a controller. When the first touch switch 7 is triggered, the electric telescopic rod 6 contracts; when the second touch switch 8 is triggered, the electric telescopic rod 6 extends.

[0031] Therefore, when tamping the coal cakes, the coal powder in the coal storage tower enters the feeding barrel 211 from the feeding pipe 5 through the discharge port of the coal storage tower, and the driving motor 221 is turned on. The output shaft of the driving motor 221 drives the rotating rod 222 to rotate synchronously, driving the two moving blocks 224 to drive the feeding barrel 211 to move along the extension direction of the guide rod 223. During the movement, the rack 232 will drive the gear 231 to rotate, and the gear 231 drives the connecting rod 212 and the partition plate 213 to rotate, so that the coal powder in the feeding barrel 211 can fall into the feeding pipe 31. When the feeding barrel 211 moves from one side of the mounting frame 4 to the other side, the first touch switch 7 is triggered, and the controller controls the electric telescopic rod 6 to retract, and the rack 232 moves down and is no longer meshed with the gear 231. At this time, the feeding barrel 211 moves in the opposite direction, and the connecting rod 212 does not rotate, and the coal powder stops being added. When the feeding barrel 211 returns to its initial position, the second touch switch 8 is triggered, and the controller controls the electric telescopic rod 6 to extend, and the rack 232 moves up and is meshed with the gear 231 again, and the feeding barrel 211 starts a new round of feeding.

[0032] Reference Figure 2 and Figure 3 Each feeding assembly 3 includes a feeding pipe 31, a feeding member 32 and a transmission member 33. The feeding pipe 31 is arranged in the horizontal direction, one end of which is located below the feeding barrel 211 and is open at the top, and the other end is connected to the feeding port 111. The feeding member 32 includes a rotating shaft 321 and a spiral plate 322. The rotating shaft 321 is coaxially rotatably connected in the feeding pipe 31, and the spiral plate 322 is coaxially fixedly connected to the rotating shaft 321. The side wall of the spiral plate 322 abuts against the inner wall of the feeding pipe 31.

[0033] Reference Figure 3 and Figure 4 The transmission member 33 includes a ratchet 331 and a plurality of ratchet pawls 332. It should be noted that the end of the rotating shaft 321 near the tamping hammer 12 partially extends into the coal box 11 and is located between two adjacent tamping hammers 12. The ratchet 331 is coaxially fixedly connected to the end of the rotating shaft 321 near the tamping hammer 12. The plurality of ratchet pawls 332 are hinged to the side wall of the tamping hammer 12 along the vertical direction. A telescopic rod 9 and a return spring 10 are provided on the side wall of the tamping hammer 12. The telescopic rod 9 corresponds to the ratchet 332 in a one-to-one manner. One end of the telescopic rod 9 is hinged to the side wall of the tamping hammer 12, and the other end is hinged to the ratchet 332. One end of the return spring 10 is welded to the side wall of the tamping hammer 12, and the other end is welded to the side wall of the ratchet 332.

[0034] When the tamping hammer 12 moves upward, the telescopic rod 9 is in an extended state, and the pawl 332 can be embedded in the tooth groove of the ratchet 331. When the tamping hammer 12 moves upward, the pawl 332 can drive the ratchet 331 to rotate, and the ratchet 331 drives the rotating shaft 321 and the spiral plate 322 to rotate, pushing the coal powder in the feed pipe 31 into the coal box 11, without the need for workers to operate it. When the tamping hammer 12 moves downward, the pawl 332 will move toward the direction close to the tamping hammer 12 under the pressure of the ratchet 331, the telescopic rod 9 shrinks, and the reset spring 10 is in a compressed state, and will not drive the ratchet 331 to rotate in the opposite direction. When the tamping hammer 12 moves downward until the pawl 332 is no longer squeezed by the ratchet 331, the pawl 332 will reset under the elastic action of the reset spring 10, so that the tamping hammer 12 can still drive the ratchet 331 to rotate when it moves upward again, without the need for workers to adjust the pawl 332.

[0035] The implementation principle of a feeding device for a tamping machine in the embodiment of the present application is as follows: when tamping coal cakes, coal powder continues to fall from the discharge port of the coal storage tower, enters the feeding barrel 211 through the feeding pipe 5, and starts the driving motor 221. The output shaft of the driving motor 221 drives the rotating rod 222 to rotate synchronously, driving the two moving blocks 224 to drive the feeding barrel 211 to move along the extension direction of the guide rod 223. During the movement, the rack 232 drives the gear 231 to rotate, and the gear 231 drives the connecting rod 212 and the partition plate 213 to rotate, so that the coal powder in the feeding barrel 211 can fall into the feeding pipe 31. At the same time, as the tamping hammer 12 moves upward, the ratchet 332 will be embedded in the tooth groove of the ratchet 331 and turn it. The ratchet 331 drives the rotating shaft 321 and the spiral plate 322 to rotate, pushing the coal powder in the feeding pipe 31 into the coal box 11. As a result, the amount of pulverized coal entering the coal box 11 from different feed ports 111 in the same time period is almost the same, making the density of the coal cakes more uniform and less likely to crack or collapse, and no worker control is required throughout the process, saving manpower.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A feeding device for a tamping machine, characterized in that: The invention comprises an equipment body (1), a feeding assembly (2) and a plurality of feeding assemblies (3), wherein the equipment body (1) comprises a coal box (11) and a plurality of tamping hammers (12), a feeding port (111) is provided on a side wall of the coal box (11), a plurality of tamping hammers (12) are arranged at intervals in the coal box (11), the feeding assembly (2) comprises a feeding part (21) and a moving part (22), a mounting frame (4) is provided on the side wall of the coal box (11), the feeding part (21) The feeding member (21) is arranged below the discharge port of the coal storage tower, and comprises a feeding barrel (211). The top of the feeding barrel (211) is provided with a powder inlet (2111), and the bottom of the feeding barrel (211) is provided with a discharge port (2112). The powder inlet (2111) is connected to the discharge port of the coal storage tower via a retractable feeding pipe (5). The moving member (22) is arranged on the mounting frame (4) and is used to drive the feeding barrel (211) to move in a horizontal direction. A plurality of the feeding assemblies (3) are arranged on the side wall of the coal box (11) at intervals in the horizontal direction. Each of the feeding assemblies (3) comprises a feeding pipe (31), a feeding member (32) and a transmission member (33). One end of the feeding pipe (31) is arranged below the feeding cylinder (211), and the other end is connected to the feeding port (111). The feeding member (32) is arranged in the feeding pipe (31), and the transmission member (33) is arranged in the coal box (11). The tamping hammer (12) drives the feeding member (32) through the transmission member (33) to feed coal powder into the coal box (11).

2. The feeding device for a tamping machine according to claim 1, characterized in that: The moving member (22) comprises a driving motor (221), a rotating rod (222), a guide rod (223) and two moving blocks (224); the driving motor (221) is arranged at one end of the mounting frame (4); the rotating rod (222) is rotatably connected to the mounting frame (4) and fixedly connected to the output shaft of the driving motor (221); the guide rod (223) is fixedly arranged on the mounting frame (4); the two moving blocks (224) are both fixedly connected to the side wall of the feeding barrel (211); one of the moving blocks (224) is threadedly connected to the rotating rod (222), and the other of the moving blocks (224) is slidably connected to the guide rod (223).

3. The feeding device for a tamping machine according to claim 1, characterized in that: The feeding member (32) comprises a rotating shaft (321) and a spiral plate (322); the rotating shaft (321) and the spiral plate (322) are both rotatably connected in the feeding pipe (31); and the spiral plate (322) is coaxially fixedly connected to the rotating shaft (321).

4. The feeding device for a tamping machine according to claim 3, characterized in that: The transmission member (33) comprises a ratchet (331) and a plurality of ratchet pawls (332). One end of the rotating shaft (321) extends into the coal box (11) and is located between two adjacent tamping hammers (12). The ratchet (331) is coaxially fixedly connected to the rotating shaft (321). A plurality of ratchet pawls (332) are arranged on the side wall of the tamping hammer (12) at intervals in the vertical direction. A telescopic rod (9) is arranged on the side wall of the tamping hammer (12). The telescopic rod (9) corresponds to the ratchet pawls (332) in a one-to-one manner. One end of the telescopic rod (9) is hinged to the tamping hammer (12), and the other end is hinged to the ratchet pawl (332). When the tamping hammer (12) moves upward, the ratchet pawl (332) is embedded in the tooth groove of the ratchet (331).

5. The feeding device for a tamping machine according to claim 1, characterized in that: The feeding member (21) further comprises a connecting rod (212) and a plurality of partition plates (213); the connecting rod (212) is coaxially rotatably connected to the feeding barrel (211); and the plurality of partition plates (213) are arranged in the feeding barrel (211) and circumferentially arranged on the side wall of the connecting rod (212).

6. The feeding device for a tamping machine according to claim 5, characterized in that: The feeding assembly (2) further comprises a rotating member (23), the rotating member (23) comprising a gear (231) and a rack (232), the gear (231) being coaxially fixedly connected to the connecting rod (212), and the rack (232) being arranged on the mounting frame (4) and meshingly connected to the gear (231).

7. The feeding device for a tamping machine according to claim 6, characterized in that: The bottom of the rack (232) is fixedly connected to an electric telescopic rod (6), the electric telescopic rod (6) being arranged on the mounting frame (4), and the two ends of the mounting frame (4) are respectively provided with a first touch switch (7) and a second touch switch (8), the first touch switch (7) being electrically connected to the electric telescopic rod (6) via a controller, and when the first touch switch (7) is turned on, the electric telescopic rod (6) is retracted; the second touch switch (8) is also electrically connected to the electric telescopic rod (6) via a controller, and when the second touch switch (8) is turned on, the electric telescopic rod (6) is extended.

8. The feeding device for a tamping machine according to claim 4, characterized in that: A return spring (10) is provided on the side wall of the tamping hammer (12); one end of the return spring (10) is fixedly connected to the side wall of the tamping hammer (12), and the other end of the return spring (10) is fixedly connected to the ratchet (332).

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