Equipment and method for dismantling bridge substructure

Abstract

This invention discloses a dismantling device and method for the substructure of a bridge, belonging to the technical field of bridge dismantling equipment. It includes self-locking casters, a lifting platform, a support platform, a support panel, an insertion device, a rotating device, a drilling device, a top-support device, a release device, a transmission device, and a removal device. The insertion device and the rotating device are mounted on the support platform. The drilling device is connected to the insertion device. Two top-support devices are symmetrically arranged on the support panel. The release device and the removal device are both mounted on the support panel. The transmission device is also mounted on the removal device. This device provides a convenient method for dismantling square timber and back bracing by using screws or similar methods to limit their position on the side of the bridge abutment. By saving time and effort and releasing most of the required pulling force to the ground, the stability and operational efficiency of this device are improved.

Description

Technical Field

[0001] This invention relates to the field of bridge demolition equipment technology, and in particular to a demolition device and method for the substructure of a bridge. Background Technology

[0002] A bridge is generally a structure erected over rivers, lakes, or seas to allow vehicles and pedestrians to pass smoothly. To adapt to the rapidly developing modern transportation industry, the term "bridge" has also come to refer to structures built across mountains, challenging geological conditions, or to meet other transportation needs, making travel more convenient.

[0003] The substructure of a bridge typically consists of abutments, piers, foundations, and bearings, serving as a crucial link between the upper and lower sections. After the concrete is poured and the abutments have undergone a period of curing and reached a certain strength, their outer formwork needs to be removed. Due to environmental factors, existing methods for removing abutment formwork involve manually prying the timber and back bracing with tools to loosen them. This device offers a time-saving and labor-saving solution, releasing most of the prying force to the ground, preventing damage to the abutment concrete when prying the timber and back bracing. It also removes the screws from the timber and back bracing, preventing injury to personnel during collection. Summary of the Invention

[0004] This invention provides a dismantling device and method for the substructure of a bridge to solve the aforementioned technical problems.

[0005] The present invention adopts the following technical solution: a dismantling device and method for a bridge substructure support, comprising self-locking casters and a lifting platform, and further comprising a support platform, a support panel, an insertion device, a rotating device, a drilling device, a top support device, a release device, a transmission device, and a removal device. The lifting platform is disposed on a horizontal plane. A plurality of self-locking casters are provided, each disposed at the lower end of the lifting platform. The support platform is disposed on the lifting platform. The support panel is disposed at the side end of the support platform. The insertion device is disposed on the support platform. The rotating device is disposed on the support platform. The drilling device is connected to the insertion device and the rotating device. Two top support devices are provided, symmetrically disposed on the support panel. The release device is disposed on the support panel and connected to the insertion device. The removal device is disposed on the support panel. The transmission device is disposed on the removal device and connected to one of the two top support devices.

[0006] Furthermore, the insertion device includes an insertion seat, an insertion motor, an insertion screw, an insertion track, and an insertion sleeve. The insertion seat is mounted on a support platform and has an insertion groove. The insertion motor is mounted on the support platform and its output end passes through the insertion groove without contacting it. The insertion screw is mounted on the output end of the insertion motor. The insertion track is fixed to the insertion groove. The insertion sleeve is fitted onto the insertion screw and is threaded. The upper end of the insertion sleeve is slidably connected to the insertion track.

[0007] Furthermore, the rotating device includes a rotary motor, a driving helical gear, a rotating helical gear, and a rotating telescopic rod. The rotary motor is mounted on a support platform, the driving helical gear is mounted on the output end of the rotary motor, the rotating helical gear is mounted on an extension seat and is rotatably connected, the rotating helical gear has a rotating groove, the extension screw and the extension track pass through the rotating groove and do not contact it, and there are two rotating telescopic rods, which are symmetrically arranged on the rotating helical gear.

[0008] Furthermore, the drilling device includes a drilling column and a drilling roller. The drilling column is mounted on the two rotating telescopic rods, the end of the insert sleeve is connected to the drilling column, and the drilling roller is mounted on the side end of the drilling column.

[0009] Furthermore, the first end of the drilling roller is surrounded by several drilling teeth, the opening of the drilling roller is larger than the end of a traditional screw or rivet, and an S-shaped pull-out part is provided at the center of the inside of the drilling roller.

[0010] Furthermore, both of the aforementioned support devices include a support base, a support electric cylinder, a support frame, a support shaft, and a suction cup. The support base is mounted on the support panel, the support frame is mounted on one side of the support base, the support shaft is mounted on the output end of the support electric cylinder and passes through the support frame, and is rotatably connected to the support frame. The suction cup is mounted on the support shaft.

[0011] Furthermore, the release device includes a release rack plate, a release gear, a release screw, a limiting telescopic rod, a release block, a release disc, a release spring, and a release component. The upper end of the release rack plate is connected to the lower end of the inserted sleeve. The release screw is mounted on the support panel and is rotatably connected. The release gear is mounted on the upper end of the release screw and meshes with the release rack plate. The release block is sleeved on the release screw and is threadedly connected. There are two limiting telescopic rods, with their upper ends symmetrically connected to the lower end of the support panel and their lower ends connected to the release block. The release disc is located at the lower end of the release block. There are several release springs, which are evenly arranged around the lower end of the release disc. The release component is located at the lower end of the several release springs.

[0012] Furthermore, the transmission device includes a transmission rack plate, a transmission frame, a transmission shaft, and a transmission gear. The transmission rack plate is sleeved on the corresponding top support shaft, the transmission frame is disposed on the side end of the support panel, the transmission shaft is disposed on the transmission frame and is rotatably connected, and the transmission gear is disposed on one end of the transmission shaft and meshes with the transmission rack plate.

[0013] Furthermore, the extraction device includes an extraction plate, an extraction block, and an extraction disc. The extraction plate is disposed on one side of the support panel, and the other end of the drive shaft passes through the extraction plate and is rotatably connected. The extraction block is sleeved on the other end of the drive shaft, and the extraction disc is disposed on the extraction block. The extraction disc is surrounded by a plurality of burrs. The upper side of the extraction plate is at a right angle to the side corresponding to the extraction block, and the lower side of the extraction plate is arc-shaped to the side corresponding to the extraction block.

[0014] A method for operating a dismantling device for a bridge substructure includes the following steps:

[0015] S1: After the concrete pouring of the bridge abutment is completed and it has been cured for a period of time and reached a certain strength, it is necessary to remove its outer formwork. First, the self-locking caster wheel is used to move the device so that the drilling roller is aligned with the square timber that limits the bridge abutment. Then, the operation of the lifting platform is used to align the drilling roller with the screw on the square timber, so that the center point of the drilling roller is misaligned with the screw on the square timber. This means that the S-shaped pull-out part at the center of the drilling roller is misaligned with the screw.

[0016] S2: After the drilling drum is aligned, the rotary motor drives the drive helical gear on its output end to rotate. The drive helical gear rotates the rotating helical gear on the extension seat, which in turn rotates the rotating telescopic rod. The rotating telescopic rod rotates the drilling column, which in turn rotates the drilling drum. Simultaneously, the extension motor operates synchronously, driving the extension screw on its output end to rotate. The extension screw rotates the extension sleeve, which moves towards the square timber. The extension sleeve and the extension track are in a sliding cooperation state. The movement of the extension sleeve drives the drilling column, which in turn drives the drilling drum towards the screw on the square timber. When the drilling drum contacts the square timber, the rotation and extension movement of the drilling drum cause the drilling teeth on the drilling drum to drill holes in the square timber. At this time, the screw on the square timber is located inside the drilling drum due to the drilling movement of the drilling drum.

[0017] S3: When the drilling drum is drilling into the square timber, the operation of the top support electric cylinder drives the top support axis on the output end of the top support electric cylinder to move in the direction of the back rib, thereby adsorbing the suction cup onto the back rib. This provides a support force when the drilling drum is drilling into the square timber, and the force on the back rib is in the opposite direction to that on the square timber, making it easier for the drilling drum to drill through the square timber.

[0018] S4: After the drilling roller pierces the square timber, the S-shaped pull-out part inside the drilling roller will firmly fix the pierced part of the square timber inside the drilling roller, which is more conducive to removing the screw from the concrete. This allows the device to use greater force. At this time, it is only necessary to remove the screw driven into the concrete. Since the concrete is not at its hardest state and the driven screw is not long, it is only necessary to run the extension motor. The extension motor drives the drilling roller to return along the original path. At this time, the top support electric cylinder runs and stops the suction cup against the back rib. The suction cup and the drilling roller move in opposite directions, thus giving the drilling roller enough force to pull the screw out of the concrete. When the inserted sleeve returns to its original position, it drives the release rack plate to move. The release rack plate then drives the release gear to rotate on the support panel. The rotation of the release gear drives the release screw to rotate, which in turn drives the release block on the release screw to move downward. The downward movement of the release block drives the release disc to move downward. Meanwhile, the two limit telescopic rods are in a coordinated state. The downward movement of the release disc drives the release component on the release spring to move towards the lifting platform. Thus, the force exerted by the drilling roller when pulling the screw out of the concrete is transmitted to the lifting platform, and then to the ground. This ensures the stability of the device and effectively pulls the screw out of the concrete.

[0019] S5: After the screw is pulled out of the concrete, the drilling roller returns to its original position. The drilled portion and the screw are now inside the drilling roller and secured by the S-shaped pull-out piece. At this time, the top support electric cylinder drives the top support shaft on the output end of the top support electric cylinder to move away from the back rib. When the top support shaft moves, it drives the transmission rack plate to move and mesh with the transmission gear, causing it to rotate. The rotation of the transmission gear drives the transmission shaft to rotate, which in turn drives the extraction block to rotate. The rotation of the extraction block drives the extraction disc to rotate. When the extraction disc rotates to an upward and vertical position, it stops. At this time, the extraction disc is located directly in front of the drilling roller. The synchronous operation of the insertion motor and the rotary motor drives the drilling drum to rotate and move towards the extraction disc. The end that was previously located on the concrete screw will pass through the extraction disc, and the drilled part of the square timber will be inserted into the burr. At this time, the support force of the extraction disc comes from the top support device. The drilled part of the square timber has a supporting force. Then, the synchronous operation of the insertion motor and the rotary motor drives the drilling drum to rotate back to its original position. At this time, the S-shaped pull-out part rotates out of the drilled part of the square timber and disengages. The drilled part of the square timber is now separated from the drilling drum. At this point, the drilled part of the square timber on the burr can be gently removed without using too much force.

[0020] S6: When performing the next operation, simply repeat the above steps. After the square timber and back beam are drilled through and all the screws are removed, the device can be easily removed from the side of the bridge abutment and reused. It is only necessary to change the fixing position at both ends when fixing it next time. At the same time, it ensures that personnel will not be injured by screws when collecting, placing and transporting square timber and back beam, thus improving personnel safety.

[0021] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0022] Firstly, this invention provides a method for removing square timber and back ribs that are easily fixed to the side of the bridge abutment by means of screws or similar methods. By saving time and effort and releasing most of the required pulling force to the ground, the stability and work efficiency of this device are supported, and the screws on the square timber and back ribs can also be removed.

[0023] Secondly, after the drilling roller pierces the square timber, the S-shaped pull-out component inside the drilling roller firmly fixes the pierced portion of the timber inside the drilling roller, which is more conducive to removing the screw from the concrete. This allows the device to apply greater force. At this point, only the screw driven into the concrete needs to be removed. Since the concrete is not at its hardest state and the driven screw is not long, the extension motor can be used to drive the drilling roller back along its original path. At this time, the top support cylinder operates, pressing the suction cup against the back rib. The suction cup and the drilling roller move in opposite directions, thus providing sufficient force for the drilling roller to pull the screw out of the concrete. When the inserted sleeve returns to its original position, it drives the release rack plate to move. The release rack plate then drives the release gear to rotate on the support panel. The rotation of the release gear drives the release screw to rotate, which in turn drives the release block on the release screw to move downward. The downward movement of the release block drives the release disc to move downward. Meanwhile, the two limit telescopic rods are in a coordinated state. The downward movement of the release disc drives the release component on the release spring to move towards the lifting platform. Thus, the force exerted by the drilling roller when pulling the screw out of the concrete is transmitted to the lifting platform, and then to the ground. This ensures the stability of the device and effectively pulls the screw out of the concrete.

[0024] Thirdly, in this invention, after the screw is pulled out of the concrete, the drilling roller returns to its original position. The drilled portion and the screw are now fixed inside the drilling roller by the S-shaped pull-out piece. At this time, the top support electric cylinder drives the top support shaft on the output end of the top support electric cylinder to move away from the back rib. When the top support shaft moves, it drives the transmission rack plate to mesh with the transmission gear and rotates it. The rotation of the transmission gear drives the transmission shaft to rotate, which in turn drives the extraction block to rotate. The rotation of the extraction block drives the extraction disc to rotate. When the extraction disc rotates to an upward and vertical position, it stops. At this time, the extraction disc is located directly in front of the drilling roller. Then, the insertion motor and the rotary motor run synchronously to drive the drilling roller to rotate and move towards the extraction disc. The end of the screw that was previously in the concrete will pass through the extraction disc, and the drilled portion will be removed. The wooden part will be inserted into the burr. At this time, the support force of the removal disc comes from the top support device. The drilled part of the square timber has a supporting force. Then, the extension motor and the rotary motor run synchronously to drive the drilling drum to rotate back to its original position. At this time, the S-shaped pull-out part rotates out of the drilled part of the square timber along the original path and disengages. The drilled part of the square timber is now separated from the drilling drum. At this time, the drilled part of the square timber on the burr can be gently removed without too much force. When performing the next operation, the above operation can be repeated. After the square timber and back rib are drilled through and all the screws are removed, this device can be easily removed from the side of the bridge abutment and reused. It is only necessary to change the fixing position at both ends when fixing it next time. At the same time, it ensures that personnel will not be injured by screws when collecting, placing and transporting square timber and back ribs, thus improving personnel safety.

[0025] Fourth, when the drilling drum is drilling square timber, the operation of the top support electric cylinder drives the top support axis on the output end of the top support electric cylinder to move in the direction of the back rib, thereby adsorbing the suction cup onto the back rib. This provides a supporting force when the drilling drum is drilling square timber, and the force on the back rib is in the opposite direction to that on the square timber, making it easier for the drilling drum to drill through the square timber. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0029] Figure 3 This is a three-dimensional structural diagram of the insertion device in this invention;

[0030] Figure 4 This is a three-dimensional structural diagram of the rotating device in this invention;

[0031] Figure 5 This is a three-dimensional structural diagram of the insertion device, the rotating device, and the drilling device in this invention;

[0032] Figure 6 This is a three-dimensional structural diagram of the release device in this invention;

[0033] Figure 7 This is a partial structural diagram of the present invention;

[0034] Figure 8 This is a schematic diagram of the cross-section of the drilling roller in this invention:

[0035] Figure 9 This is a three-dimensional structural diagram of the top support device in this invention;

[0036] Figure 10 This is a three-dimensional structural diagram of the extraction device and the transmission device in this invention;

[0037] Figure 11 This is a three-dimensional structural diagram of the support device, the extraction device, and the transmission device in this invention.

[0038] Attached Figure

[0039] 1. Self-locking caster wheel; 11. Lifting platform; 12. Support platform; 13. Support panel; 14. Square timber; 15. Back rib; 2. Extension device; 21. Extension seat; 22. Extension motor; 23. Extension screw; 24. Extension track; 25. Extension sleeve; 3. Rotating device; 31. Rotating motor; 32. Drive helical gear; 33. Rotating helical gear; 34. Rotating groove; 35. Rotating telescopic rod; 4. Drilling device; 41. Drilling column; 42. Drilling roller; 43. Drilling teeth; 44. S-shaped pull-out piece; 45. Top support. Device 5, top support seat 51, top support electric cylinder 52, top support frame 53, top support shaft 54, suction cup 55, release device 6, release rack plate 61, release gear 62, release screw 63, limit telescopic rod 64, release block 65, release disc 66, release spring 67, release component 68, transmission device 7, transmission rack plate 71, transmission frame 72, transmission shaft 73, transmission gear 74, removal device 8, removal plate 81, removal block 82, removal disc 83, burr 84. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0041] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] Reference Figures 1-11 As shown, this embodiment of the invention provides a dismantling device and method for a bridge substructure, including self-locking casters 1 and a lifting platform 11, as well as a support platform 12, a support panel 13, an insertion device 2, a rotating device 3, a drilling device 4, a top support device 5, a release device 6, a transmission device 7, and a removal device 8. The lifting platform 11 is positioned on a horizontal plane. Several self-locking casters 1 are provided, each positioned at the lower end of the lifting platform 11. The support platform 12 is mounted on the lifting platform 11. The support panel 13 is positioned on the side of the support platform 12. The insertion device 2 and the rotating device 3 are both mounted on the support platform 12. The drilling device 4 is connected to the insertion device 2 and the rotating device 3. Two top support devices 5 are provided, and the two top support devices 5 are symmetrically arranged on the support panel 13. The release device 6 is arranged on the support panel 13 and connected to the insertion device 2. The extraction device 8 is arranged on the support panel 13. The transmission device 7 is arranged on the extraction device 8 and connected to one of the two top support devices 5. This device provides a method for removing square timber 14 and back rib 15 by means of screws or other similar methods, which can limit them to the side of the bridge abutment. By saving time and effort and releasing most of the required pulling force to the ground, the stability and work efficiency of this device are supported.

[0043] Reference Figure 3 and Figure 5 As shown, preferably, the insertion device 2 includes an insertion seat 21, an insertion motor 22, an insertion screw 23, an insertion track 24, and an insertion sleeve 25. The insertion seat 21 is mounted on the support platform 12 and has an insertion groove. The insertion motor 22 is mounted on the support platform 12 and its output end passes through the insertion groove without contacting it. The insertion screw 23 is mounted on the output end of the insertion motor 22. The insertion track 24 is fixed to the insertion groove. The insertion sleeve 25 is sleeved on the insertion screw 23 and is threadedly connected. The upper end of the insertion sleeve 25 is slidably connected to the insertion track 24.

[0044] Reference Figure 4 and Figure 5 As shown, preferably, the rotating device 3 includes a rotating motor 31, a driving helical gear 32, a rotating helical gear 33, and a rotating telescopic rod 35. The rotating motor 31 is mounted on the support platform 12, the driving helical gear 32 is mounted on the output end of the rotating motor 31, the rotating helical gear 33 is mounted on the extension seat 21 and is rotatably connected, the rotating helical gear 33 is provided with a rotating groove 34, the extension screw 23 and the extension track 24 pass through the rotating groove 34 and do not contact it, and there are two rotating telescopic rods 35, which are symmetrically arranged on the rotating helical gear 33.

[0045] Reference Figure 5 and Figure 8 As shown, preferably, the drilling device 4 includes a drilling column 41 and a drilling roller 42. The drilling column 41 is mounted on the two rotating telescopic rods 35. The end of the sleeve 25 is connected to the drilling column 41. The drilling roller 42 is mounted on the side end of the drilling column 41.

[0046] Reference Figure 8 As shown, preferably, the first end of the drilling roller 42 is surrounded by a plurality of drilling teeth 43, the opening of the drilling roller 42 is larger than the end of a conventional screw or rivet, and an S-shaped pull-out piece 44 is provided at the center of the inside of the drilling roller 42.

[0047] Reference Figure 9 As shown, preferably, both of the top support devices 5 include a top support base 51, a top support electric cylinder 52, a top support frame 53, a top support shaft 54, and a suction cup 55. The top support base 51 is disposed on the support panel 13, the top support frame 53 is disposed on one side of the top support base 51, the top support shaft 54 ​​is disposed on the output end of the top support electric cylinder 52 and passes through the top support frame 53 and is rotatably connected to the top support frame 53, and the suction cup 55 is disposed on the top support shaft 54.

[0048] Reference Figure 5 , Figure 6 and Figure 7As shown, preferably, the release device 6 includes a release rack plate 61, a release gear 62, a release screw 63, a limiting telescopic rod 64, a release block 65, a release disc 66, a release spring 67, and a release element 68. The upper end of the release rack plate 61 is connected to the lower end of the extension sleeve 25. The release screw 63 is mounted on the support panel 13 and is rotatably connected. The release gear 62 is mounted on the upper end of the release screw 63 and meshes with the release rack plate 61. The release block 65 is sleeved on the release screw 63 and is threadedly connected. There are two limiting telescopic rods 64, with the upper ends of the two limiting telescopic rods 64 symmetrically connected to the lower end of the support panel 13 and the lower ends connected to the release block 65. The release disc 66 is mounted on the lower end of the release block 65. There are several release springs 67, which are evenly arranged around the lower end of the release disc 66. The release element 68 is mounted on the lower end of the several release springs 67.

[0049] Reference Figure 9 and Figure 10 As shown, preferably, the transmission device 7 includes a transmission rack 71, a transmission frame 72, a transmission shaft 73, and a transmission gear 74. The transmission rack 71 is sleeved on the corresponding top support shaft 54. The transmission frame 72 is disposed on the side end of the support panel 13. The transmission shaft 73 is disposed on the transmission frame 72 and is rotatably connected. The transmission gear 74 is disposed on one end of the transmission shaft 73 and meshes with the transmission rack 71.

[0050] Reference Figure 2 , Figure 10 and Figure 11 As shown, preferably, the extraction device 8 includes an extraction plate 81, an extraction block 82, and an extraction disc 83. The extraction plate 81 is disposed on one side of the support panel 13. The other end of the drive shaft 73 passes through the extraction plate 81 and is rotatably connected. The extraction block 82 is sleeved on the other end of the drive shaft 73. The extraction disc 83 is disposed on the extraction block 82. A plurality of burrs 84 are arranged around the extraction disc 83. The upper side of the extraction plate 81 is at a right angle to the side corresponding to the extraction block 82, and the lower side of the extraction plate 81 is arc-shaped to the side corresponding to the extraction block 82.

[0051] A method for operating a dismantling device for a bridge substructure includes the following steps:

[0052] S1: After the concrete pouring of the bridge abutment is completed and after a period of curing, once it has reached a certain strength, it is necessary to remove its outer formwork. First, the self-locking caster 1 is used to move the device so that the drilling roller 42 is aligned with the square timber 14 that limits the bridge abutment. Then, the operation of the lifting platform 11 is used to align the drilling roller 42 with the screw on the square timber 14, so that the center point of the drilling roller 42 is misaligned with the screw on the square timber 14. This means that the S-shaped pull-out part 44 at the center of the drilling roller 42 is misaligned with the screw.

[0053] S2: After the drilling drum 42 is aligned, the rotary motor 31 drives the drive helical gear 32 on its output end to rotate. The rotation of the drive helical gear 32 drives the rotation helical gear 33 on the extension seat 21 to rotate. The rotation of the rotation helical gear 33 drives the rotation of the rotary telescopic rod 35 to rotate. The rotation of the rotary telescopic rod 35 drives the drilling column 41 to rotate. The rotation of the drilling column 41 drives the drilling drum 42 to rotate. At the same time, the extension motor 22 operates synchronously, driving the extension screw 23 on its output end to rotate. The rotation of the extension screw 23 drives the drilling drum 42 to rotate. The movable insert sleeve 25 moves toward the square timber 14 on the insert screw 23. The insert sleeve 25 and the insert track 24 are in a sliding cooperation state. The movement of the insert sleeve 25 drives the drilling column 41 to move, thereby driving the drilling roller 42 to move toward the screw on the square timber 14. When the drilling roller 42 contacts the square timber 14, the drilling teeth 43 on the drilling roller 42 will drill the square timber 14 through the rotation and insertion movement of the drilling roller 42. At this time, the screw on the square timber 14 is located inside it through the drilling movement of the drilling roller 42.

[0054] S3: When the drilling drum 42 is drilling the square timber 14, the operation of the top support electric cylinder 52 drives the top support shaft 54 ​​on the output end of the top support electric cylinder 52 to move towards the back rib 15, thereby adsorbing the suction cup 55 onto the back rib 15. This allows the drilling drum 42 to provide a supporting force when drilling the square timber 14, and the force on the back rib 15 is in the opposite direction to that on the square timber 14, making it easier for the drilling drum 42 to drill through the square timber 14.

[0055] S4: After the drilling roller 42 drills through the square timber 14, the S-shaped pull-out part inside the drilling roller 42 will firmly fix the drilled part of the square timber 14 inside the drilling roller 42, which is more conducive to removing the screw from the concrete, allowing the device to use greater force. At this time, it is only necessary to remove the screw driven into the concrete. However, the concrete is not at its hardest state at this time, and the driven screw is not long. At this time, it is only necessary to run the extension motor 22. The extension motor 22 drives the drilling roller 42 to return along the original path. At this time, the top support electric cylinder 52 runs and stops the suction cup 55 against the back rib. The suction cup 55 and the drilling roller 42 move in opposite directions, thus giving the drilling roller 42 enough force to pull the screw out of the concrete. When the extension sleeve is inserted... When the sleeve 25 returns to its original position, the extension sleeve 25 will drive the release rack plate 61 to move. The movement of the release rack plate 61 will drive the release gear 62 to rotate on the support panel 13. The rotation of the release gear 62 will drive the release screw 63 to rotate, thereby driving the release block 65 on the release screw 63 to move downward. The downward movement of the release block 65 will drive the release disc 66 to move downward. Meanwhile, the two limit telescopic rods 64 are in a coordinated state. The downward movement of the release disc 66 will drive the release element 68 on the release spring 67 to move onto the lifting platform 11. Thus, the force when the drilling roller 42 pulls the screw out of the concrete will be transmitted to the lifting platform 11, and the lifting platform 11 will transmit it to the ground, thereby ensuring the stability of the device and effectively pulling out the screw from the concrete.

[0056] S5: After the screw is pulled out of the concrete, the drilling roller 42 returns to its original position, and the drilled part and the screw are now fixed inside the drilling roller 42 by the S-shaped pull-out piece 44. At this time, the top support cylinder 52 drives the top support shaft 54 ​​on the output end of the top support cylinder 52 to move away from the back rib 15. When the top support shaft 54 ​​moves, it drives the transmission rack plate 71 to move and mesh with the transmission gear 74, and drives it to rotate. The rotation of the transmission gear 74 drives the transmission shaft 73 to rotate, and the rotation of the transmission shaft 73 drives the extraction block 82 to rotate. The rotation of the extraction block 82 drives the extraction disc 83 to rotate. When the extraction disc 83 rotates to the upward setting and vertical state, it stops. At this time, the extraction disc 83 is located directly in front of the drilling roller 42. The insertion motor 22 and the rotary motor 31 operate synchronously to drive the drilling drum 42 to rotate and move towards the extraction disc 83. The end that was previously located on the concrete screw will pass through the extraction disc 83, and the drilled part of the square timber 14 will be inserted into the burr 84. At this time, the supporting force of the extraction disc 83 comes from the top support device 5. The drilled part of the square timber 14 has a supporting force. Then, the insertion motor 22 and the rotary motor 31 operate synchronously to drive the drilling drum 42 to rotate back to its original position. At this time, the S-shaped pull-out piece 44 rotates out of the drilled part of the square timber 14 and disengages. At this time, the drilled part of the square timber 14 is separated from the drilling drum 42. Then, the drilled part of the square timber 14 on the burr 84 can be gently removed without too much force.

[0057] S6: When performing the next operation, simply repeat the above steps. After all the screws of the square timber 14 and back beam 15 are drilled through, this device can be easily removed from the side of the bridge abutment and reused. It is only necessary to change the fixing position of both ends when fixing it next time. At the same time, it ensures that the square timber 14 and back beam 15 will not be damaged by the screws when collecting and placing them, thus improving the safety of personnel.

[0058] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A demolition apparatus for bridge substructure, comprising a self-locking universal wheel (1) and a lifting platform (11), characterized in that, It also includes a support platform (12), a support panel (13), an insertion device (2), a rotating device (3), a drilling device (4), a top support device (5), a release device (6), a transmission device (7), and an extraction device (8). The lifting platform (11) is set on a horizontal plane. Several self-locking casters (1) are provided, and the casters (1) are respectively set at the lower end of the lifting platform (11). The support platform (12) is set on the lifting platform (11). The support panel (13) is set on the side end of the support platform (12). The insertion device (2) is set on the support platform (12). The rotating device (3) is set on the support platform (12). The drilling device (4) is connected to the insertion device (2) and the rotating device (3). Two top support devices (5) are provided, and the two top support devices (5) are respectively symmetrically set on the support panel (13). The release device (6) is set on the support panel (13). The device is connected to the insertion device (2), the extraction device (8) is mounted on the support panel (13), the transmission device (7) is mounted on the extraction device (8) and connected to one of the two support devices (5), the drilling device (4) includes a drilling column (41) and a drilling roller (42), and the rotating device (3) includes a rotary motor (31), a drive helical gear (32), a rotating helical gear (33) and a rotating telescopic rod. (35) The drilling column (41) is set on the two rotating telescopic rods (35), the end of the insert sleeve (25) is connected to the drilling column (41), the drilling roller (42) is set on the side end of the drilling column (41), the head end of the drilling roller (42) is surrounded by a number of drilling teeth (43), the opening of the drilling roller (42) is larger than the end of a conventional screw, and an S-shaped pull-out piece (44) is provided at the center inside the drilling roller (42).

2. The apparatus according to claim 1, wherein The insertion device (2) includes an insertion seat (21), an insertion motor (22), an insertion screw (23), an insertion track (24), and an insertion sleeve (25). The insertion seat (21) is mounted on a support platform (12) and has an insertion groove. The insertion motor (22) is mounted on the support platform (12) and its output end passes through the insertion groove without contacting it. The insertion screw (23) is mounted on the output end of the insertion motor (22). The insertion track (24) is fixed on the insertion groove. The insertion sleeve (25) is fitted onto the insertion screw (23) and is threaded. The upper end of the insertion sleeve (25) is slidably connected to the insertion track (24).

3. A bridge substructure removal apparatus according to claim 2, wherein, The rotary motor (31) is mounted on the support platform (12), the drive helical gear (32) is mounted on the output end of the rotary motor (31), the rotary helical gear (33) is mounted on the extension seat (21) and is rotatably connected, the rotary helical gear (33) is provided with a rotary groove (34), the extension screw (23) and the extension track (24) pass through the rotary groove (34) and do not contact it, and there are two rotary telescopic rods (35), which are symmetrically arranged on the rotary helical gear (33).

4. The apparatus of claim 3, wherein, Both of the aforementioned top support devices (5) include a top support base (51), a top support electric cylinder (52), a top support frame (53), a top support shaft (54), and a suction cup (55). The top support base (51) is mounted on the support panel (13), the top support frame (53) is mounted on one side of the top support base (51), the top support shaft (54) is mounted on the output end of the top support electric cylinder (52) and passes through the top support frame (53) and is rotatably connected to the top support frame (53), and the suction cup (55) is mounted on the top support shaft (54).

5. A bridge substructure removal apparatus according to claim 4, wherein, The release device (6) includes a release rack (61), a release gear (62), a release screw (63), a limiting telescopic rod (64), a release block (65), a release disc (66), a release spring (67), and a release element (68). The upper end of the release rack (61) is connected to the lower end of the extension sleeve (25). The release screw (63) is mounted on the support panel (13) and is rotatably connected. The release gear (62) is mounted on the upper end of the release screw (63) and meshes with the release rack (61). The release block (65) 65) Sleeve on the release screw (63) and threaded connection, there are two limiting telescopic rods (64), the upper ends of the two limiting telescopic rods (64) are symmetrically connected to the lower end of the support panel (13) and the lower end is connected to the release block (65), the release disc (66) is set at the lower end of the release block (65), there are several release springs (67), the several release springs (67) are evenly arranged around the lower end of the release disc (66), and the release component (68) is set at the lower end of the several release springs (67).

6. A bridge substructure removal apparatus according to claim 5, wherein, The transmission device (7) includes a transmission rack (71), a transmission frame (72), a transmission shaft (73), and a transmission gear (74). The transmission rack (71) is sleeved on the corresponding top support shaft (54). The transmission frame (72) is located on the side of the support panel (13). The transmission shaft (73) is located on the transmission frame (72) and is rotatably connected. The transmission gear (74) is located on one end of the transmission shaft (73) and meshes with the transmission rack (71).

7. A bridge substructure removal apparatus according to claim 6, wherein The extraction device (8) includes an extraction plate (81), an extraction block (82), and an extraction disc (83). The extraction plate (81) is disposed on one side of the support panel (13). The other end of the drive shaft (73) passes through the extraction plate (81) and is rotatably connected. The extraction block (82) is sleeved on the other end of the drive shaft (73). The extraction disc (83) is disposed on the extraction block (82). Several burrs (84) are arranged around the extraction disc (83). The upper side of the extraction plate (81) is at a right angle to the side corresponding to the extraction block (82), and the lower side of the extraction plate (81) is arc-shaped to the side corresponding to the extraction block (82).

8. The method of claim 7, wherein the method further comprises: Includes the following steps: S1: After the concrete pouring of the bridge abutment is completed and after a period of curing, once it reaches a certain strength, it is necessary to dismantle its outer formwork. First, the self-locking caster (1) is used to move the device so that the drilling roller (42) is aligned with the square timber (14) that limits the bridge abutment. Then, the operation of the lifting platform (11) is used to align the drilling roller (42) with the screw on the square timber (14), so that the center point of the drilling roller (42) and the screw on the square timber (14) are misaligned. This means that the S-shaped pull-out part (44) at the center of the drilling roller (42) is misaligned with the screw. S2: After the drilling drum (42) is aligned, the rotary motor (31) drives the drive helical gear (32) on the output end of the rotary motor (31) to rotate. The rotation of the drive helical gear (32) drives the rotation helical gear (33) to rotate on the extension seat (21). The rotation of the rotation helical gear (33) drives the rotation telescopic rod (35) to rotate. The rotation of the telescopic rod (35) drives the drilling column (41) to rotate. The rotation of the drilling column (41) drives the drilling drum (42) to rotate. At the same time, the extension motor (22) runs synchronously and drives the extension screw (23) on the output end of the extension motor (22) to rotate. The rotation of the extension screw (23) drives the drilling drum (42) to rotate. The inserting sleeve (25) moves on the inserting screw (23) toward the square timber (14). The inserting sleeve (25) and the inserting track (24) are in a sliding cooperation state. The movement of the inserting sleeve (25) drives the drilling column (41) to move, thereby driving the drilling roller (42) to move toward the screw on the square timber (14). When the drilling roller (42) contacts the square timber (14), the drilling teeth (43) on the drilling roller (42) will drill the square timber (14) through the rotation and insertion movement of the drilling roller (42). At this time, the screw on the square timber (14) is located inside it through the drilling movement of the drilling roller (42). S3: When the drilling drum (42) drills the square timber (14), the operation of the top support electric cylinder (52) drives the top support shaft (54) on the output end of the top support electric cylinder (52) to move towards the back rib (15), thereby adsorbing the suction cup (55) onto the back rib (15). This allows the drilling drum (42) to provide a supporting force when drilling the square timber (14), and the force on the back rib (15) is opposite to that on the square timber (14), making it easier for the drilling drum (42) to drill through the square timber (14). S4: After the drilling roller (42) drills through the square timber (14), the S-shaped pull-out part inside the drilling roller (42) will firmly fix the drilled part of the square timber (14) inside the drilling roller (42), which is more conducive to removing the screw from the concrete, so that the device can use greater force. At this time, it is only necessary to remove the screw driven into the concrete. At this time, the concrete is not at its hardest state, and the driven screw is not long. At this time, it is only necessary to run the extension motor (22). The extension motor (22) drives the drilling roller (42) to return along the original path. At this time, the top support electric cylinder (52) runs and stops the suction cup (55) against the back rib (15). The suction cup (55) and the drilling roller (42) are moving in opposite directions, thus giving the drilling roller (42) enough force to pull the screw out of the concrete. When the screw is pulled out, and when the inserted sleeve (25) moves back to its original position, the inserted sleeve (25) will drive the release rack plate (61) to move. The movement of the release rack plate (61) will drive the release gear (62) to rotate on the support panel (13). The rotation of the release gear (62) will drive the release screw (63) to rotate, thereby driving the release block (65) on the release screw (63) to move downward. The downward movement of the release block (65) will drive the release disc (66) to move downward. The two limit telescopic rods (64) are in a coordinated state. The downward movement of the release disc (66) will drive the release part (68) on the release spring (67) to move towards the lifting platform (11). Thus, the force when the drilling drum (42) pulls the screw out of the concrete will be transmitted to the lifting platform (11), and the lifting platform (11) will transmit it to the ground. S5: After the screw is pulled out of the concrete, the drilling roller (42) returns to its original position, and the drilled part and the screw are now fixed inside the drilling roller (42) by the S-shaped pull-out piece (44). At this time, the top support cylinder (52) drives the top support shaft (54) on the output end of the top support cylinder (52) to move away from the back rib (15). When the top support shaft (54) moves, it drives the transmission rack plate (71) to move to mesh with the transmission gear (74) and drive it to rotate. The transmission gear (74) rotates, which drives the transmission shaft (73) to rotate. The transmission shaft (73) rotates, which drives the extraction block (82) to rotate. The extraction block (82) rotates, which drives the extraction disc (83) to rotate. When the extraction disc (83) rotates to the upward setting and vertical state, it stops. At this time, the extraction disc (83) is located in front of the drilling roller (42). The drilling drum (42) is driven to rotate and move toward the extraction disc (83) by the synchronous operation of the insertion motor (22) and the rotary motor (31). The end previously located on the concrete screw will pass through the extraction disc (83), and the drilled part of the square timber (14) will be inserted into the burr (84). At this time, the support force of the extraction disc (83) comes from the top support device (5). The drilled part of the square timber (14) has a support force. Then, the drilling drum (42) is driven to rotate back to its original position by the synchronous operation of the insertion motor (22) and the rotary motor (31). At this time, the S-shaped pull-out piece (44) rotates out of the drilled part of the square timber (14) and disengages. At this time, the drilled part of the square timber (14) is separated from the drilling drum (42). The drilled part of the square timber (14) on the burr (84) can be gently removed without too much force. S6: When performing the next operation, simply repeat the above operation. After the square timber (14) and back beam (15) are drilled through and all their screws are removed, the device can be easily removed from the side of the bridge abutment and reused. Just change the fixing position at both ends when fixing it next time. At the same time, the square timber (14) and back beam (15) will not be damaged by the screws when they are collected and placed.

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