Automatic roughening device for elevated beam bottom and beam bottom roughening method

Abstract

The present invention discloses an automatic roughening device for the bottom of an elevated beam, comprising a clamping device, a conveying device and a roughening device, wherein the clamping device comprises a plurality of clamping support mechanisms, the clamping support mechanisms comprise a first clamping tube and a second clamping tube, the first clamping tube and the second clamping tube are respectively connected with a first pressure plate assembly and a second pressure plate assembly, and a first two-way telescopic cylinder and a first support frame are movably connected between the first clamping tube and the second clamping tube; the conveying device comprises a conveying track plate and a first pull rope, the conveying track plate is connected to the first support frame, a movable support plate and a first vertical telescopic cylinder are arranged on the conveying track plate, and the roughening device is arranged on the first vertical telescopic cylinder; the lower end of the conveying track plate is connected with a first pulling assembly and a second pulling assembly. The automatic roughening device realizes the automatic roughening of the beam bottom, and the roughening efficiency is high. The present invention also discloses a roughening method for the bottom of an elevated beam, which can perform more effective and convenient roughening of the bottom of an elevated beam through the roughening device.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an automatic roughening device for the bottom of an elevated beam and a roughening method for the bottom of the beam. Background Art

[0002] With the increase in the number of viaducts and the increase in their age, more and more bridges need to be repaired. At present, the roughening task in beam bottom maintenance is mostly done manually, which is not only time-consuming and labor-intensive, but also has uneven quality. Most importantly, it is used in a harsh working environment and will cause irreversible damage to the human body. It can be seen that the existing technology needs to be further improved and enhanced. Summary of the invention

[0003] The object of the present invention is to provide an automatic roughening device for the bottom of an elevated beam, which is used to realize automatic roughening of the bottom of the beam against gravity, effectively improve the uniformity of the roughening quality, and improve the roughening efficiency.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is:

[0005] An automatic roughening device for the bottom of an elevated beam comprises a clamping device, a conveying device and a roughening device, wherein the clamping device comprises a plurality of clamping support mechanisms, wherein the clamping support mechanisms comprise a first clamping tube and a second clamping tube, wherein the upper end of the first clamping tube is connected with a first pressing plate assembly, the upper end of the second clamping tube is connected with a second pressing plate assembly, a first two-way telescopic cylinder is movably connected between the lower end of the first clamping tube and the lower end of the second clamping tube; and a first support frame is movably connected between the middle part of the first clamping tube and the middle part of the second clamping tube;

[0006] The conveying device includes a conveying track plate and a first pull rope, the conveying track plate is connected to the first support frame, a movable support plate is arranged on the conveying track plate, the movable support plate is connected to the first vertical telescopic cylinder, and the chiseling device is arranged at the upper end of the first vertical telescopic cylinder;

[0007] The lower end of the conveying track plate is connected with a first pulling assembly and a second pulling assembly, the first pulling assembly is connected to the second pulling assembly through a first pull rope, the lower end of the movable support plate is connected with a first pull-down plate, and the first pull-down plate is connected to the first pull rope between the first pulling assembly and the second pulling assembly.

[0008] Preferably, the first support frame comprises a first branch pipe, the left end of the first branch pipe is connected to two mutually parallel first support plates, the middle part of the first clamping pipe is inserted between the two first support plates and connected to the first support plates through a first rotating shaft pin;

[0009] The right end of the first branch pipe is connected to two second support plates which are parallel to each other. The middle part of the second clamping pipe is inserted between the two second support plates and connected to the second support plates through a second rotating shaft pin.

[0010] Preferably, the lower end of the end of the first branch pipe is connected to the first bracket and the second bracket, the first bracket is located on the inner side of the first support plate, and the outer end of the first bracket is connected to the first compression screw; the second bracket is located on the inner side of the second support plate, and the outer end of the second bracket is connected to the second compression screw;

[0011] The inner side end of the first bracket is vertically connected to the first track support plate, and the inner side end of the second bracket is vertically connected to the second track support plate.

[0012] Preferably, the transmission track plate is connected to the upper ends of the first track support plate and the second track support plate, and the front and rear side end faces of the transmission track plate are respectively provided with a first card slot and a second card slot, the end of the first clamping screw passes through the first bracket and is inserted into the first card slot, and the end of the second clamping screw passes through the second bracket and is inserted into the second card slot.

[0013] Preferably, the first clamping tube and the second clamping tube are both square steel tubes, the inner end of the upper end of the first clamping tube is connected to the first pressing plate assembly through the first upper rotating shaft, and the inner end of the lower end of the first clamping tube is connected to the first cylinder shaft on the first two-way telescopic cylinder through the first lower rotating shaft;

[0014] The inner end of the upper end of the second clamping tube is connected to the second pressing plate assembly through a second upper rotating shaft, and the inner end of the lower end of the second clamping tube is connected to the second cylinder shaft of the first bidirectional telescopic cylinder through a second lower rotating shaft.

[0015] Preferably, the conveying track plate is in a square frame shape, and is provided with a first strip groove and a second strip groove parallel to each other;

[0016] The left lower end of the movable support plate is connected to two first movable roller assemblies, and the right lower end of the movable support plate is connected to two second movable roller assemblies, the first movable roller assembly is slidably connected to the first strip groove, and the second movable roller assembly is slidably connected to the second strip groove;

[0017] The first pressing plate assembly includes a first steel plate and a first rubber plate connected to the inner end surface of the first steel plate, and the second pressing plate assembly includes a second steel plate and a second rubber plate connected to the inner end surface of the second steel plate.

[0018] Preferably, the first pulling assembly includes a first motor, the first motor is connected to the lower left end of the conveying track plate, a first rotating tube is connected to the rotating shaft of the first motor, and one end of the first pulling rope is wound around the first rotating tube;

[0019] The second pulling assembly includes a second motor, which is connected to the lower right end of the conveying track plate, and a second rotating tube is connected to the rotating shaft of the second motor, and the other end of the first pulling rope is wound around the second rotating tube;

[0020] The first pull-down plate is in an arc-shaped plate shape and is connected to the lower end of the middle portion of the movable support plate. The first pull rope passes through the first pull-down plate and is fixedly connected to the first pull-down plate through a pull rope outer sleeve sleeved on the first pull rope.

[0021] Preferably, the movable support plate is in a U-shaped plate shape, and there are two first vertical telescopic cylinders, and the two first vertical telescopic cylinders are fixed on the lower end surface of the movable support plate on both sides of the first pull-down plate;

[0022] The chiseling device includes a chiseling drive assembly, the upper end of which is provided with a plurality of chiseling heads. The chiseling drive assembly is inserted into the upper part of the movable support plate, and the telescopic shaft of the first vertical telescopic cylinder passes through the movable support plate and is connected to the lower end of the chiseling drive assembly.

[0023] Preferably, the automatic roughening equipment for the bottom of the elevated beam also includes a power device, which includes a power vehicle, on which an automatic elevator, a controller, a power generating mechanism and an air pressure pump are arranged, the power generating mechanism is connected to the first pulling assembly and the second pulling assembly, and the air pressure pump is connected to the roughening device, the first bidirectional telescopic cylinder and the first vertical telescopic cylinder through an air pipe.

[0024] Another object of the present invention is to provide a method for roughening the bottom of an elevated beam.

[0025] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0026] A method for roughening the bottom of an elevated beam, using the above-mentioned automatic roughening device for roughening the bottom of an elevated beam, specifically comprises the following steps:

[0027] Step 1: Control the power generation mechanism and the air pressure pump to work through the controller, and then install multiple clamping support mechanisms;

[0028] Step 2: Install the conveying device on the clamping support mechanism, install the chiseling device on the conveying device, and start the chiseling device to work;

[0029] Step 3: When the haircutting device encounters the first support frame, the first vertical telescopic cylinder contracts and descends, the haircutting device descends as a whole, and the mobile support plate and the haircutting device pass under the first support frame;

[0030] Step 4: When the chiseling device moves to the tail of the conveying track plate, the controller stops the first pulling assembly, the second pulling assembly and the chiseling device, and then loosens the first clamping screw and the second clamping screw to move the conveying track plate backward;

[0031] Step 5, disassembling the frontmost clamping support mechanism among the multiple clamping support mechanisms, and installing the frontmost clamping support mechanism at the rear end of the rearmost clamping support mechanism until all the clamping support mechanisms are installed;

[0032] Step six, controlling the first pulling assembly, the second pulling assembly and the chiseling device to operate through a controller.

[0033] The beneficial effects of the present invention are:

[0034] The above-mentioned automatic roughening equipment for the bottom of the elevated beam is provided with a brand-new clamping device and a conveying device. After the roughening device in the prior art is installed on the conveying device, the entire roughening equipment can perform better roughening treatment on the bottom of the elevated beam. Compared with the traditional manual roughening, the present invention is easy to control the lateral forward speed and vertical force of the roughening machine, so that the working quality of the roughening machine is effectively guaranteed. The present invention has a compact structure, simple operation, convenient use, and integrated functions, which greatly improves the working efficiency of the roughening machine. It saves manpower as a whole and greatly improves the safety of construction personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 It is an isometric schematic diagram of the connection structure of the clamping device, the conveying device and the roughening device.

[0037] Figure 2 It is a schematic diagram of the connection structure between the clamping device and the power device.

[0038] Figure 3 It is a bottom view schematic diagram of the connection structure of the clamping device, the conveying device and the chiseling device.

[0039] Figure 4 It is a schematic diagram of the connection structure between the conveying track plate and the roughening device.

[0040] Figure 5 It is a schematic diagram of the connection structure of a transmission track plate, a first pulling component and a second pulling component.

[0041] Figure 6 It is a schematic diagram of the connection structure between the roughening device and the movable support plate.

[0042] Figure 7 It is a schematic diagram of the connection structure between the conveying track plate and the clamping support mechanism. DETAILED DESCRIPTION

[0043] The present invention is described in detail below in conjunction with the accompanying drawings:

[0044] Example 1

[0045] Combination Figures 1 to 7 An automatic roughening device for the bottom of an elevated beam comprises a clamping device 1, a conveying device 2 and a roughening device 3. The clamping device 1 comprises a plurality of clamping support mechanisms 11, and the clamping support mechanisms 11 comprise a first clamping tube 12 and a second clamping tube 13. The upper end of the first clamping tube 12 is connected to a first pressing plate assembly 14, and the upper end of the second clamping tube 13 is connected to a second pressing plate assembly 15. A first two-way telescopic cylinder 16 is movably connected between the lower end of the first clamping tube 12 and the lower end of the second clamping tube 13; a first support frame 17 is movably connected between the middle part of the first clamping tube 12 and the middle part of the second clamping tube 13.

[0046] The conveying device 2 includes a conveying track plate 21 and a first pull rope 22. The conveying track plate 21 is connected to multiple first support frames 17. A movable support plate 23 is provided on the conveying track plate 21. The movable support plate 23 is connected to a first vertical telescopic cylinder 24. The roughening device 3 is arranged at the upper end of the first vertical telescopic cylinder 24.

[0047] The lower end of the conveying track plate 21 is connected to a first pulling assembly 25 and a second pulling assembly 26. The first pulling assembly 25 is connected to the second pulling assembly 26 through a first pull rope 22. The lower end of the movable support plate 23 is connected to a first pull-down plate 27. The first pull-down plate 27 is connected to the first pull rope 22 between the first pulling assembly 25 and the second pulling assembly 26.

[0048] The first support frame 17 includes a first branch pipe 171, and the left end of the first branch pipe 171 is connected to two mutually parallel first support plates 172. The middle part of the first clamping tube 12 is inserted between the two first support plates 172 and connected to the first support plate 172 through a first rotating shaft pin.

[0049] The right end of the first branch pipe 171 is connected to two second support plates 173 which are parallel to each other. The middle portion of the second clamping pipe 13 is inserted between the two second support plates 173 and connected to the second support plate 173 via a second rotating shaft pin.

[0050] The lower end of the end of the first branch pipe 171 is connected to the first bracket 174 and the second bracket 175 . The first bracket 174 is located inside the first support plate 172 . The outer end of the first bracket 174 is connected to a first pressing screw 176 .

[0051] The second bracket 175 is located on the inner side of the second support plate 173 , and a second pressing screw is connected to the outer end of the second bracket 175 .

[0052] The inner end of the first bracket 174 is vertically connected to the first track support plate 178 , and the inner end of the second bracket 175 is vertically connected to the second track support plate 179 .

[0053] The transmission track plate 21 is connected to the upper ends of the first track support plate 178 and the second track support plate 179. The front and rear side end faces of the transmission track plate 21 are respectively provided with a first card slot 211 and a second card slot 212. The end of the first clamping screw 176 passes through the first bracket 174 and is inserted into the first card slot 211. The end of the second clamping screw passes through the second bracket 175 and is inserted into the second card slot 212.

[0054] The first clamping tube 12 and the second clamping tube 13 are both square steel tubes. The inner end of the upper end of the first clamping tube 12 is connected to the first pressure plate assembly 14 through a first upper rotating shaft, and the inner end of the lower end of the first clamping tube 12 is connected to the first cylinder shaft on the first bidirectional telescopic cylinder 16 through a first lower rotating shaft.

[0055] The inner end of the upper end of the second clamping tube 13 is connected to the second pressing plate assembly 15 through a second upper rotating shaft, and the inner end of the lower end of the second clamping tube 13 is connected to the second cylinder shaft of the first bidirectional telescopic cylinder 16 through a second lower rotating shaft.

[0056] The conveying track plate 21 is in a square frame shape, and is provided with a first strip groove 213 and a second strip groove 214 which are parallel to each other.

[0057] The left lower end of the movable support plate 23 is connected to two first movable roller assemblies 231, and the right lower end of the movable support plate 23 is connected to two second movable roller assemblies 232. The first movable roller assembly 231 is slidably connected to the first strip groove 213, and the second movable roller assembly 232 is slidably connected to the second strip groove 214.

[0058] The first pressing plate assembly 14 includes a first steel plate and a first rubber plate connected to the inner end surface of the first steel plate, and the second pressing plate assembly 15 includes a second steel plate and a second rubber plate connected to the inner end surface of the second steel plate.

[0059] The first pulling assembly 25 includes a first motor 251 , which is connected to the lower left end of the conveying track plate 21 . A first rotating tube 252 is connected to the rotating shaft of the first motor 251 , and one end of the first pulling rope 22 is wound around the first rotating tube 252 .

[0060] The second pulling assembly 26 includes a second motor 261 , which is connected to the lower right end of the conveying track plate 21 . A second rotating tube 262 is connected to the rotating shaft of the second motor 261 , and the other end of the first pulling rope 22 is wound around the second rotating tube 262 .

[0061] The first pull-down plate 27 is in an arc-shaped plate shape and is connected to the middle lower end of the movable support plate 23 . The first pull rope 22 passes through the first pull-down plate 27 and is fixedly connected to the first pull-down plate 27 through a pull rope outer sleeve sleeved on the first pull rope 22 .

[0062] The movable support plate 23 is in a U-shaped plate shape, and has two first vertical telescopic cylinders 24 . The two first vertical telescopic cylinders 24 are fixed on the lower end surface of the movable support plate 23 on both sides of the first pull-down plate 27 .

[0063] The chiseling device 3 includes a chiseling drive assembly 31, and a plurality of chiseling heads 32 are arranged at the upper end of the chiseling drive assembly 31. The chiseling drive assembly 31 is inserted into the upper part of the movable support plate 23, and the telescopic shaft of the first vertical telescopic cylinder 24 passes through the movable support plate 23 and is connected to the lower end of the chiseling drive assembly 31.

[0064] The automatic roughening equipment for the bottom of the elevated beam also includes a power device 4, which includes a power vehicle 41. The power vehicle 41 is provided with an automatic elevator 42, a controller 43, a power generation mechanism 44 and an air pressure pump 45. The power generation mechanism 44 includes a diesel generator, and the diesel generator is connected to a battery assembly, which is connected to the controller. The power generation mechanism 44 is connected to the first pulling assembly and the second pulling assembly, and the air pressure pump 45 is connected to the roughening device 3, the first bidirectional telescopic cylinder 16 and the first vertical telescopic cylinder 24 through an air pipe.

[0065] Example 2

[0066] Combination Figures 1 to 7 A method for roughening the bottom of an elevated beam comprises the following steps:

[0067] Step one, through the controller 43, control the power generation mechanism 44 and the air pressure pump 45 to work, and then install multiple clamping support mechanisms 11, the air pressure pump 45 supplies air to the first two-way telescopic cylinder 16, the first cylinder shaft and the second cylinder shaft of the first two-way telescopic cylinder 16 extend out, and then the first pressure plate assembly 14 and the second pressure plate assembly 15 are close to the side wall of the bottom 5 of the elevated beam, and the multiple clamping support mechanisms 11 provide sufficient support force for the automatic roughening equipment at the bottom of the elevated beam.

[0068] Step 2: Install the conveying device 2 onto the clamping support mechanism 11, install the chiseling device 3 onto the conveying device 2, and the chiseling device 3 starts to work.

[0069] Step three, when the haircutting device 3 encounters the first support frame 17 midway, the first vertical telescopic cylinder 24 contracts and descends, the haircutting device 3 descends as a whole, and the mobile support plate 23 and the haircutting device 3 pass under the first support frame 17.

[0070] Step 4, when the roughening device 3 moves to the tail of the conveying track plate 21, the first pulling assembly 25, the second pulling assembly 26 and the roughening device 3 are stopped by the controller 43, and then the first clamping screw 176 and the second clamping screw are loosened to move the conveying track plate 21 backward.

[0071] Step 5: disassemble the frontmost clamping support mechanism 11 among the multiple clamping support mechanisms 11, and install the frontmost clamping support mechanism 11 at the rear end of the rearmost clamping support mechanism 11 until all the clamping support mechanisms 11 are installed.

[0072] Step six, controlling the first pulling assembly, the second pulling assembly and the chiseling device 3 to operate through the controller 43.

[0073] Example 3

[0074] The above-mentioned automatic roughening equipment for the bottom of the elevated beam is provided with a brand-new clamping device 1 and a conveying device 2. After the roughening device 3 in the prior art is installed on the conveying device 2, the entire roughening equipment can perform better roughening treatment on the bottom of the elevated beam. Compared with the traditional manual roughening, the present invention is easy to control the lateral forward speed and vertical force of the roughening machine, so that the working quality of the roughening machine is effectively guaranteed. The present invention has a compact structure, simple operation, easy use, and integrated functions, which greatly improves the working efficiency of the roughening machine. It saves manpower as a whole and greatly improves the safety of construction personnel.

[0075] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0076] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An automatic roughening device for the bottom of an elevated beam, characterized in that: It includes a clamping device, a conveying device and a chiseling device. The clamping device includes a plurality of clamping support mechanisms. The clamping support mechanisms include a first clamping tube and a second clamping tube. The upper end of the first clamping tube is connected to a first pressing plate assembly, the upper end of the second clamping tube is connected to a second pressing plate assembly, a first two-way telescopic cylinder is movably connected between the lower end of the first clamping tube and the lower end of the second clamping tube; a first support frame is movably connected between the middle of the first clamping tube and the middle of the second clamping tube; The conveying device includes a conveying track plate and a first pull rope, the conveying track plate is connected to the first support frame, a movable support plate is arranged on the conveying track plate, the movable support plate is connected to the first vertical telescopic cylinder, and the chiseling device is arranged at the upper end of the first vertical telescopic cylinder; The lower end of the conveying track plate is connected with a first pulling assembly and a second pulling assembly, the first pulling assembly is connected to the second pulling assembly through a first pulling rope, the lower end of the movable support plate is connected with a first lower pull plate, and the first lower pull plate is connected to the first pulling assembly and the second pulling assembly through a first pulling rope; The first support frame includes a first branch pipe, the left end of which is connected to two mutually parallel first support plates, the middle portion of the first clamping pipe is inserted between the two first support plates and connected to the first support plates through a first rotating shaft pin; The right end of the first branch pipe is connected to two second support plates which are parallel to each other, and the middle part of the second clamping pipe is inserted between the two second support plates and connected to the second support plates through a second rotating shaft pin; The lower end of the end of the first branch pipe is connected to the first bracket and the second bracket, the first bracket is located on the inner side of the first support plate, and the outer end of the first bracket is connected to the first compression screw; the second bracket is located on the inner side of the second support plate, and the outer end of the second bracket is connected to the second compression screw; The inner side end of the first bracket is vertically connected to the first track support plate, and the inner side end of the second bracket is vertically connected to the second track support plate; The transmission track plate is connected to the upper ends of the first track support plate and the second track support plate, and the front and rear side end surfaces of the transmission track plate are respectively provided with a first clamping groove and a second clamping groove, and the end of the first clamping screw passes through the first bracket and is clamped into the first clamping groove, and the end of the second clamping screw passes through the second bracket and is clamped into the second clamping groove; The first clamping tube and the second clamping tube are both square steel tubes, the inner side end of the upper end of the first clamping tube is connected to the first pressing plate assembly through the first upper rotating shaft, and the inner side end of the lower end of the first clamping tube is connected to the first cylinder shaft on the first two-way telescopic cylinder through the first lower rotating shaft; The inner side end of the upper end of the second clamping tube is connected to the second pressing plate assembly through a second upper rotating shaft, and the inner side end of the lower end of the second clamping tube is connected to the second cylinder shaft of the first two-way telescopic cylinder through a second lower rotating shaft; The conveying track plate is in a square frame shape, and is provided with a first strip groove and a second strip groove parallel to each other; The left lower end of the movable support plate is connected to two first movable roller assemblies, and the right lower end of the movable support plate is connected to two second movable roller assemblies, the first movable roller assembly is slidably connected to the first strip groove, and the second movable roller assembly is slidably connected to the second strip groove; The first pressing plate assembly includes a first steel plate and a first rubber plate connected to the inner end surface of the first steel plate, and the second pressing plate assembly includes a second steel plate and a second rubber plate connected to the inner end surface of the second steel plate; The first pulling assembly includes a first motor, the first motor is connected to the lower left end of the conveying track plate, a first rotating tube is connected to the rotating shaft of the first motor, and one end of the first pulling rope is wound around the first rotating tube; The second pulling assembly includes a second motor, which is connected to the lower right end of the conveying track plate, and a second rotating tube is connected to the rotating shaft of the second motor, and the other end of the first pulling rope is wound around the second rotating tube; The first pull-down plate is in an arc-shaped plate shape, and the first pull-down plate is connected to the lower end of the middle part of the movable support plate. The first pull rope passes through the first pull-down plate and is fixedly connected to the first pull-down plate through a pull rope outer sleeve sleeved on the first pull rope. The movable support plate is in a U-shaped plate shape, and has two first vertical telescopic cylinders, which are fixed on the lower end surface of the movable support plate on both sides of the first pull-down plate; The chiseling device includes a chiseling drive assembly, the upper end of which is provided with a plurality of chiseling heads. The chiseling drive assembly is inserted into the upper part of the movable support plate, and the telescopic shaft of the first vertical telescopic cylinder passes through the movable support plate and is connected to the lower end of the chiseling drive assembly.

2. The automatic roughening device for the bottom of an elevated beam according to claim 1 is characterized in that: The automatic roughening equipment for the bottom of the elevated beam also includes a power device, which includes a power vehicle. The power vehicle is provided with an automatic elevator, a controller, a power generation mechanism and an air pressure pump. The power generation mechanism is connected to the first pulling assembly and the second pulling assembly. The air pressure pump is connected to the roughening device, the first bidirectional telescopic cylinder and the first vertical telescopic cylinder through an air pipe.

3. A method for roughening the bottom of an elevated beam, characterized in that: The automatic roughening device for the bottom of the elevated beam according to claim 1 or 2 specifically comprises the following steps: Step 1: Control the power generation mechanism and the air pressure pump to work through the controller, and then install multiple clamping support mechanisms; Step 2: Install the conveying device on the clamping support mechanism, install the chiseling device on the conveying device, and start the chiseling device to work; Step 3: When the haircutting device encounters the first support frame, the first vertical telescopic cylinder contracts and descends, the haircutting device descends as a whole, and the mobile support plate and the haircutting device pass under the first support frame; Step 4: When the chiseling device moves to the tail of the conveying track plate, the controller stops the first pulling assembly, the second pulling assembly and the chiseling device, and then loosens the first clamping screw and the second clamping screw to move the conveying track plate backward; Step 5, disassembling the frontmost clamping support mechanism among the multiple clamping support mechanisms, and installing the frontmost clamping support mechanism at the rear end of the rearmost clamping support mechanism until all the clamping support mechanisms are installed; Step six, controlling the first pulling assembly, the second pulling assembly and the chiseling device to operate through a controller.

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