Pier shaft main reinforcement processing device

Abstract

The present application relates to the field of bridge pier construction, and discloses a bridge pier pier body main reinforcement processing device, which comprises a processing box body, a liquid cavity is formed in the processing box body, at least one workpiece conveying component is arranged on each side of the processing box body, and the workpiece conveying components on the two sides are coaxial and used for conveying workpieces; a fixed ring and a movable ring are arranged on a workpiece path; compared with the prior art, the device can solve the problems of "rust powder scattering, rib gap residue and secondary adhesion difficult to clean" in the rust layer cleaning of the steel surface of the bridge pier construction site, first, liquid is supplied to the inner wall through the small holes of the fixed ring to form a continuous flowing water film, so that the outer surface of the workpiece is pre-wetted and a particle trapping interface is obtained, thereby reducing dry brushing dust and reattachment; secondly, the steel brush is swept circumferentially by reciprocating the movable ring, so that the rust layer is repeatedly disturbed and peeled off in different tangential directions, thereby reducing the blind area.

Description

Technical Field

[0001] This invention relates to the field of bridge pier construction technology, specifically to a device for treating the main reinforcement bars of a bridge pier. Background Technology

[0002] As the main load-bearing components of the bridge substructure, bridge piers reliably transfer the loads of the superstructure to the foundation. Their construction quality and durability directly affect the operational safety and service life of the entire bridge. Pier construction typically involves pile foundation or foundation construction, abutment construction, and segmented pier casting. It is often carried out in river channels, reservoir banks, or in high-humidity, rainy environments, resulting in long construction periods and complex site conditions. This places high demands on concrete strength, structural reinforcement, construction techniques, and quality control. The segmented pier casting stage involves a large amount of steel reinforcement. The main reinforcement bars, as the key reinforcement for longitudinal stress and load transfer, are often exposed to the site environment for extended periods during transportation, storage, hoisting, binding, and waiting for casting. Their surface condition directly affects the subsequent casting quality and structural durability.

[0003] During the construction of reinforced concrete structures such as bridge piers, reinforcing bars are prone to varying degrees of corrosion during transportation, storage, and on-site exposure. To ensure the bond performance between the reinforcing bars and concrete and the structural durability, rust removal treatment is usually required on the surface of the reinforcing bars before construction, exposing the metal matrix. For bridge pier construction, the main reinforcing bars are numerous, long, and often arranged in rows, frequently forming a dense reinforcing steel skeleton with stirrups and tie bars. This makes them more susceptible to corrosion under conditions of damp mud, rain, and construction pollution, affecting the consistency of the treatment. Therefore, stable and controllable surface treatment of the main reinforcing bars before pier pouring becomes a crucial aspect of on-site quality control.

[0004] In current engineering practice, rust removal of reinforcing bars mainly employs mechanical methods such as manual wire brushing, grinding with a grinding wheel, sandblasting, or shot blasting. These methods remove rust and dirt from the surface of the reinforcing bars through relative motion. After these rust removal operations, a large amount of fine rust powder and metal shavings often remain on the surface of the reinforcing bars. This rust powder easily gets trapped between the ribs of the reinforcing bars, at the intersections of reinforcing bars, or inside dense reinforcing bar cages. Current practices mostly rely on manual cleaning with brushes, air guns, or water, and the degree of cleaning largely depends on the experience of the operators and the on-site operating conditions. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a device for treating the main reinforcement bars of bridge piers, aiming to alleviate the aforementioned problems to at least some extent.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A device for treating the main reinforcement bars of a bridge pier includes:

[0008] The processing box has a liquid cavity formed inside. At least one workpiece conveying component is provided on each side of the processing box, and the two workpiece conveying components are coaxial and used to convey workpieces.

[0009] A fixed ring and a movable ring are provided on the workpiece path. The fixed ring is hollow and has multiple small holes on its inner wall. The movable ring is located on the side of the fixed ring and is coaxial with the fixed ring. It has multiple rust removal parts, which are steel brushes. The rust removal parts can be radially displaced within the movable ring.

[0010] A liquid delivery component disposed between the liquid cavity and the fixed ring is used to deliver liquid into the inner cavity of the fixed ring.

[0011] A displacement component provided on the processing box is used to drive the fixed ring and the movable ring to move along the workpiece axial direction.

[0012] The displacement component is capable of oscillating back and forth within a predetermined angle when driving the movable ring to move.

[0013] Preferably, the workpiece conveying component includes conveying pipes fixed to both sides of the processing box, the conveying pipes are provided with multiple conveying shafts, a motor a is connected to the conveying pipes, and the output shaft of the motor a is connected to one of the conveying shafts.

[0014] Preferably, the displacement component includes a lead screw a rotatably connected to the processing box, a motor b connected to the processing box, the output shaft of the motor b being connected to the lead screw a, a support platform slidably connected inside the processing box, the support platform being threadedly engaged with the lead screw a, a fixed ring being fixed to the support platform, and a movable ring being rotatably connected to the support platform.

[0015] Preferably, the displacement component further includes a linear slide rail fixed inside the processing box, a sliding platform slidably connected inside the linear slide rail, the sliding platform being fixedly connected to the support platform, a piston shaft slidably connected to the sliding platform, the piston shaft having a linear sliding part and a rotating swing part, a rack a connected to the top of the linear slide rail, a crankshaft rotatably connected to the sliding platform, the crankshaft having a straight section and a crank portion, the crank portion of the crankshaft being rotatably connected to the rotating swing part of the piston shaft, a connecting rod rotatably connected to the bottom of the linear sliding part on the piston shaft, the connecting rod being rotatably connected to the movable ring, a gear a connected to the straight section of the crankshaft, and a rack a meshing with the gear a connected to the linear slide rail.

[0016] Preferably, the movable ring can output gas to the fixed ring when it oscillates;

[0017] Multiple air-blowing plates are connected to the side of the movable ring near the fixed ring, extending into the interior of the fixed ring. An air inlet pipe is connected to the fixed ring, and a piston plate is slidably connected inside the air inlet pipe. A lead screw b is rotatably connected to the air inlet pipe and threadedly engages with the piston plate. Multiple connection ports are provided on the air inlet pipe, and the air inlet pipe and the air-blowing plates are connected through a flexible hose. A one-way valve is provided at the end of the air inlet pipe that connects to the flexible hose for one-way air intake into the flexible hose. A gear b is connected to the end of the lead screw b, and a connecting rod is connected to the movable ring. The end of the connecting rod extends to one side of the air inlet pipe and is connected to a rack b that meshes with the gear b.

[0018] Preferably, the liquid delivery component includes a connecting pipe communicating with the liquid cavity, a communication port extending radially through the connecting pipe, a pressure tube slidably fitted inside the communication port, a spring a connecting the pressure tube and the connecting pipe, and the upper end of the pressure tube protruding from the connecting pipe.

[0019] A top pressure ring is slidably connected to the connecting pipe. A connecting box is fixed to the bottom of the top pressure ring, covering part of the bottom of the communication port. A bent pipe is connected to the bottom of the connecting box. The bent pipe is fixed to the support platform and communicates with the inner cavity of the fixed ring.

[0020] Preferably, when the displacement component drives the movable ring to move in the first direction, it can displace the rust removal part by a predetermined distance, and the rust removal part moves away from the workpiece;

[0021] When the movable ring is driven to move in the second direction, the rust removal part can be displaced by a predetermined distance, and the rust removal part moves closer to the workpiece;

[0022] The bottom of the sliding table is fixed with an annular connecting frame, and an arc-shaped slide rail is radially slidably connected to the annular connecting frame. The arc-shaped slide rail is coaxial with the movable ring. A connecting shaft is radially slidably connected to the fixed ring. One end of the connecting shaft extends toward the rust removal part and is fixed to the rust removal part, while the other end slides in cooperation with the arc-shaped slide rail.

[0023] Preferably, an adjusting bracket is slidably connected to the annular connecting frame, a lead screw c is rotatably connected to the sliding table and threadedly engaged with the adjusting bracket, and an inclined slide rail is connected to the side of the adjusting bracket, the upper end of the inclined slide rail being slidably engaged with the arc-shaped slide rail;

[0024] A rack c is slidably connected to the sliding platform, and a gear c that meshes with the rack c is connected to the lead screw c;

[0025] The top of the rack c is connected to the rack d. A gear d that meshes with the rack d is fixed on the straight section of the crankshaft. Two sliding tooth blocks are slidably connected to one side of the rack d, located at the top and bottom of one side of the rack d respectively, and a spring b is connected between the rack d and the tooth block.

[0026] Preferably, a plurality of rubber sheets are fixed to the inner wall of the fixing ring, arranged along the circumference of the inner wall of the fixing ring.

[0027] Preferably, the bottom of the fixing ring is provided with a drain port a;

[0028] The bottom of the processing box has multiple drain ports b.

[0029] In summary, the present invention has the following main beneficial effects:

[0030] Compared with existing technologies, this device addresses the problems of "rust powder scattering, rust residue in rib grooves, and difficulty in cleaning secondary adhesion" in the removal of rust layers on the surface of steel bars at bridge pier construction sites. First, liquid is supplied to the inner wall through small holes in a fixed ring to form a continuous flowing water film, which pre-wets the outer surface of the workpiece and creates a particle trapping interface, thereby reducing dust and re-adhesion during dry brushing. Second, the reciprocating swing of the movable ring drives the steel brush to sweep circumferentially, causing the rust layer to be repeatedly disturbed and peeled off in different tangential directions, thereby reducing blind spots. In addition, airflow is output through the air blowing plate, which, together with water film trapping and drainage ports a and b, guides and recovers the rust powder and abrasive debris, suppressing and concentrating them for discharge, thereby improving the cleanliness of the construction process and enhancing the cleanliness of the subsequent bonding interface.

[0031] Compared with existing technologies, the avoidance and feed linkage mechanism of this device addresses the problems of "feeding impact, continuous hard contact leading to uneven wear, and reversing jamming" in the surface treatment of bridge pier reinforcement. First, the reciprocating movement of the support platform and sliding platform drives the rack c, rack d and lead screw c to move in axial displacement, thereby converting the stroke direction into a controllable adjustment input. Second, the inclined slide rail on the side of the adjustment bracket guides the arc-shaped slide rail, causing the arc-shaped slide rail to move radially forward and backward, thereby driving the connecting shaft and steel brush to move backward or closer to the workpiece synchronously, realizing the automatic switching between avoidance in the first direction and feed in the second direction. In addition, when the arc-shaped slide rail produces eccentric guidance, the end of the connecting shaft slides along the arc-shaped slide rail to absorb the relative displacement, so that the swing of the movable ring and the change of the steel brush can be compatible, thereby reducing the risk of jamming and improving the uniformity of brushing coverage. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the workpiece conveying component of the present invention;

[0035] Figure 4 This is a schematic diagram of the fixed ring and movable ring structure of the present invention;

[0036] Figure 5 This is a cross-sectional structural schematic diagram of the fixed ring and the movable ring of the present invention;

[0037] Figure 6 yes Figure 5 A magnified view of the local structure at point a;

[0038] Figure 7 yes Figure 5 A magnified view of the local structure at point b in the middle;

[0039] Figure 8 This is a cross-sectional view of the intake pipe of the present invention;

[0040] Figure 9 This is a cross-sectional view of the connecting pipe of the present invention;

[0041] Figure 10 This is a schematic diagram of the sliding table structure of the present invention;

[0042] Figure 11 This is a cross-sectional view of the sliding table of the present invention;

[0043] Figure 12 This is a schematic diagram of the sliding tooth block structure of the present invention.

[0044] Figure label:

[0045] 100. Processing tank; 101. Liquid chamber; 102. Fixed ring; 103. Movable ring; 104. Small hole; 105. Rust removal section; 106. Rubber sheet; 107. Drain port a; 108. Drain port b;

[0046] 200. Conveying pipe; 201. Conveying shaft; 202. Motor a; 203. Lead screw a; 204. Motor b; 205. Support platform; 206. Linear guide rail; 207. Sliding table; 208. Piston shaft; 209. Rack a; 210. Crankshaft; 211. Connecting rod; 212. Gear a;

[0047] 300. Air blowing plate; 301. Air inlet pipe; 302. Piston plate; 303. Lead screw b; 304. Connecting port; 305. Hose; 306. One-way valve; 307. Gear b; 308. Connecting rod; 309. Rack b; 310. Connecting pipe; 311. Connecting port; 312. Top pressure pipe; 313. Spring a; 314. Top pressure ring; 315. Connecting box; 316. Bend;

[0048] 400. Annular connecting frame; 401. Arc-shaped slide rail; 402. Connecting shaft; 403. Adjusting bracket; 404. Lead screw c; 405. Inclined slide rail; 406. Rack c; 407. Gear c; 408. Rack d; 409. Gear d; 410. Sliding tooth block; 411. Spring b. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] refer to Figures 1-12 A device for processing the main reinforcement of a bridge pier includes a processing box 100, a workpiece conveying component, a fixed ring 102, a movable ring 103, a liquid conveying component, and a displacement component.

[0051] The processing chamber 100 contains a liquid cavity 101 for storing rust-removing and cleaning fluid, which can be a clean, ordinary liquid. At least one workpiece conveying component is provided on each of the two sides of the processing chamber 100, and these components are coaxially arranged. The workpiece passes sequentially through the two workpiece conveying components along its axial direction, and is driven by the workpiece conveying components to pass through the processing area within the processing chamber 100 along the workpiece's axial direction. The workpiece is a steel bar for bridge pier construction or a steel bar member in a steel cage component.

[0052] The fixed ring 102 and the movable ring 103 are disposed on the workpiece conveying path. The fixed ring 102 has a hollow structure, and its inner wall has a plurality of small holes 104 along the circumferential or axial direction. The axis of the fixed ring 102 is coaxial with the axis of the workpiece to form a surrounding processing space around the workpiece. The movable ring 103 is located on the side of the fixed ring 102 and is coaxial with the fixed ring 102.

[0053] The movable ring 103 is provided with multiple rust-removing sections 105, each of which is a steel brush. The steel brush can be radially displaced relative to the movable ring 103 to brush and remove rust close to the outer surface of the workpiece when needed, and to radially retract when necessary to avoid continuous hard contact with the workpiece. The first direction is defined as the workpiece inlet direction, and the second direction as the workpiece outlet direction. In the initial state, the fixed ring 102 and the movable ring 103 are positioned near the workpiece outlet, and the rust-removing sections 105 are in a retracted position after radial displacement, maintaining a gap between the steel brush and the workpiece outer surface without contact. When the fixed ring 102 and the movable ring 103 move along the first direction, the fixed ring 102, under the action of liquid transport, seeps liquid through the small hole 104 to its inner wall, forming a flowing water film. Part of the liquid in the flowing water film drips down to pre-wet the outer surface of the workpiece. When the fixed ring 102 and the movable ring 103 move back along the second direction opposite to the first direction, the rust removal part 105 moves radially toward the workpiece from the retraction position to the contact position, so that the steel brush contacts the outer surface of the workpiece during the return phase and performs brushing and rust removal, thereby realizing a phased treatment process of first wetting and then brushing.

[0054] The liquid delivery component is disposed between the liquid chamber 101 and the fixed ring 102, and is used to deliver the liquid in the liquid chamber 101 to the inner cavity of the fixed ring 102. In this embodiment, the liquid source of the liquid chamber 101 can be an external water supply end, which is connected to the liquid chamber 101 through an inlet pipe. The external water supply end is, for example, a field faucet connection or a water supply pipeline installed at the construction site; in other embodiments, the external water supply end can also be a storage tank, a circulating water tank, or a pumping liquid supply system to continuously replenish the liquid to the liquid chamber 101. After the liquid enters the inner cavity of the fixed ring 102, under the action of pressure and its own gravity, it seeps out through the multiple small holes 104 to the inner wall of the fixed ring 102 and spreads along the inner wall, forming a continuous liquid film on the inner wall of the fixed ring 102. The liquid film is in a flowing state under the condition of continuous liquid replenishment, thereby forming a stable flowing water film interface on the inner wall of the fixed ring 102.

[0055] The displacement component is disposed on the processing box 100 and is used to drive the fixed ring 102 and the movable ring 103 to move along the workpiece axial direction so as to reciprocate and cover the workpiece along the axial direction. While driving the movable ring 103 to move along the workpiece axial direction, the displacement component can make the movable ring 103 swing back and forth within a predetermined angle, so that the steel brush forms a circumferential brushing trajectory relative to the outer periphery of the workpiece, thereby disturbing and peeling off the rust layer and attachments on the outer surface of the workpiece in multiple directions.

[0056] In this embodiment, the movable ring 103 can output gas towards the workpiece during its oscillation. The gas stream directly acts on the outer surface of the workpiece, causing the fine rust powder and metal shavings generated by the steel brush peeling and agitation to detach from the workpiece surface and be lifted by the airflow. Since a flowing water film forms on the inner wall of the fixed ring 102, the rust powder and shavings lifted by the airflow are captured and adhered to the water film surface after contact with it during movement. Subsequently, they are carried away from the processing area by the flow of the water film, achieving the suppression and collection of suspended particles. Thus, under the synergistic effect of brushing agitation, direct gas blowing, and water film capture, the device can form a continuous processing and cleaning process around the workpiece, reducing the probability of rust powder retention in rib gaps, intersections, and local uneven areas, and improving the stability of the processing.

[0057] In this embodiment, the workpiece conveying component includes conveying pipes 200 fixed to both sides of the processing box 100. The conveying pipes 200 are arranged along the workpiece axial direction and fixedly connected to the side wall of the processing box 100. A plurality of conveying shafts 201 are spaced apart on the conveying pipes 200. Each conveying shaft 201 passes radially through the conveying pipe 200 and can rotate relative to the conveying pipe 200. The outer wall recess of each conveying shaft 201 extends into the processing box 100 to provide support and guidance for the workpiece when it passes through.

[0058] A motor a202 is connected to the conveying pipe 200. The motor a202 is fixedly installed on the outside of the conveying pipe 200. The output shaft of the motor a202 is connected to one of the conveying shafts 201 to drive the conveying shaft 201 to rotate. When the workpiece passes through the conveying shafts 201 located on both sides of the processing box 100 and coaxial with each other, the conveying shafts 201 form rolling supports on the outer periphery of the workpiece and, driven by the motor a202, drive the workpiece to pass through the processing box 100 axially, thereby realizing continuous conveying and positioning of the workpiece.

[0059] In this embodiment, the displacement component includes a lead screw a203, a motor b204, and a support platform 205. The lead screw a203 is arranged along the workpiece axis and rotatably connected to the processing box 100. The motor b204 is connected to the processing box 100 and is fixedly installed on the outside of the processing box 100. The output shaft of the motor b204 is connected to the lead screw a203 for transmission, so as to drive the lead screw a203 to rotate around its axis.

[0060] A support platform 205 is slidably connected inside the processing box 100. The support platform 205 can reciprocate relative to the processing box 100 along the workpiece axis, and the support platform 205 is threadedly engaged with the lead screw a203.

[0061] When the lead screw a203 rotates under the drive of the motor b204, the support platform 205 generates a linear displacement along the workpiece axis within the processing box 100, thereby achieving synchronous movement of the fixed ring 102 and the movable ring 103 along the workpiece axis. The fixed ring 102 is fixed to the support platform 205, and the movable ring 103 is rotatably connected to the support platform 205, allowing the movable ring 103 to rotate relative to the support platform 205 while moving axially with it, thus meeting the subsequent swinging and rotating motion requirements of the movable ring 103.

[0062] In this embodiment, the displacement component further includes a transmission mechanism for guiding the support platform 205 and for driving the movable ring 103 to reciprocate. A linear slide rail 206 is fixedly installed inside the processing box 100. The linear slide rail 206 extends along the workpiece axial direction, and a sliding table 207 is slidably connected inside it. The sliding table 207 is fixedly connected to the support platform 205, so that when the support platform 205 is driven by the lead screw a203 to generate axial displacement, the sliding table 207 can slide smoothly along the linear slide rail 206 to guide the movement trajectory of the support platform 205 and improve its movement stability.

[0063] A piston shaft 208 is slidably connected to the sliding table 207. The piston shaft 208 has a linear sliding part and a rotary swinging part. The linear sliding part is used to slide linearly relative to the sliding table 207, and the rotary swinging part is used to generate swinging motion under transmission. A rack a209 is fixedly connected to the top of the linear slide rail 206. A crankshaft 210 is rotatably connected to the sliding table 207. The crankshaft 210 has a straight section and a crank section. The crank section of the crankshaft 210 is rotatably connected to the rotary swinging part of the piston shaft 208, so that when the crankshaft 210 rotates, it can drive the rotary swinging part of the piston shaft 208 to generate reciprocating swinging motion. A gear a212 is connected to the straight section of the crankshaft 210. The gear a212 meshes with the rack a209. When the sliding table 207 moves along the linear slide rail 206 with the support table 205, the gear a212 rolls and meshes with the rack a209, thereby driving the crankshaft 210 to rotate around its axis. In turn, the crank part drives the rotating swing part of the piston shaft 208 to achieve reciprocating swing.

[0064] Furthermore, a connecting rod 211 is rotatably connected to the bottom of the linear sliding part on the piston shaft 208. The connecting rod 211 is rotatably connected to the movable ring 103, so that when the piston shaft 208 generates reciprocating oscillation, the oscillation motion is transmitted to the movable ring 103 through the connecting rod 211. This causes the movable ring 103 to reciprocate relative to the fixed ring 102 within a predetermined angle range while it undergoes axial displacement with the support platform 205, so as to realize the circumferential brushing treatment of the workpiece by the steel brush and improve the uniformity of rust removal coverage.

[0065] Furthermore, instead of continuously rotating the movable ring 103 in the same direction, the movable ring 103 drives the rust removal part 105 to oscillate back and forth within a predetermined angle. The tangential friction direction between the rust removal part 105 and the workpiece surface reverses in each oscillation cycle, causing the steel brush to produce an "alternating shearing-alternating brushing" effect on the brushing points: on the one hand, the bristles alternately bend and rebound in both clockwise and counterclockwise directions, which can repeatedly lift and disturb the rib roots, groove sidewalls, and local uneven edges, reducing the brush bristle friction when rotating in one direction. The brushes, which "slide along" in the same direction, avoid blind spots and residual rust and powder in crevices. On the other hand, the reciprocating oscillation prevents continuous unidirectional material carrying and throwing, reducing the accumulation, secondary compaction, or re-adhesion of rust powder in localized areas along a fixed rotation direction. This makes it easier for disturbed rust powder to be blown away from the workpiece by the airflow and enter the flowing water film collection area on the inner wall of the fixed ring 102. Thus, without relying on continuous high-speed rotation, the uniformity and stability of rust removal and cleaning are improved, and the risk of uneven wear and localized overload is reduced.

[0066] In this embodiment, a plurality of air-blowing plates 300 are circumferentially connected to the side of the movable ring 103 near the fixed ring 102. Each air-blowing plate 300 extends into the interior of the fixed ring 102 and is arranged toward the workpiece to form a sweeping airflow on the surface of the workpiece. The air-blowing plates 300 are fixedly installed on the movable ring 103 and rotate or oscillate synchronously with the movable ring 103, so that the blowing direction of the air-blowing plates 300 changes within the circumferential range with the movement of the movable ring 103, thereby realizing circumferential sweeping blowing on the outer periphery of the workpiece.

[0067] The fixed ring 102 is connected to the air intake pipe 301, and a piston plate 302 is slidably connected to the air intake pipe 301 along its axial direction. Multiple connection ports 304 are provided on the wall of the air intake pipe 301, communicating with the outside environment for supplying air to the air intake pipe 301. During reciprocating movement, the piston plate 302 can selectively cover or expose the connection ports 304 to facilitate the pressurization and air supply process. A lead screw b303 is rotatably connected to the air intake pipe 301, and the lead screw b303 is threadedly engaged with the piston plate 302, so that when the lead screw b303 rotates, it drives the piston plate 302 to reciprocate linearly within the air intake pipe 301. A gear b307 is connected to the end of the lead screw b303.

[0068] A connecting rod 308 is connected to the movable ring 103. The end of the connecting rod 308 extends to one side of the intake pipe 301 and is connected to a rack b309, which meshes with the gear b307. When the movable ring 103 reciprocates, it drives the connecting rod 308 to drive the rack b309 to reciprocate. The rack b309 further drives the gear b307 to rotate, thereby driving the lead screw b303 to rotate and driving the piston plate 302 to reciprocate within the intake pipe 301.

[0069] Based on the above structure, the piston plate 302 cooperates with the connection port 304 and the one-way valve 306 to achieve intermittent air supply: when the piston plate 302 moves past the connection port 304 and blocks the connection port 304, the piston plate 302 continues to move towards the one-way valve 306, causing positive pressure to be generated in the corresponding cavity of the air inlet pipe 301. The positive pressure pushes the one-way valve 306 to open, and the gas enters the hose 305 through the one-way valve 306 and is delivered to the air blowing plate 3. 00, the air is sprayed towards the workpiece by the air blowing plate 300; when the piston plate 302 returns in the reverse direction, a negative pressure is formed in the air inlet pipe 301, and the one-way valve 306 closes under the action of negative pressure to suppress the backflow of gas in the hose 305. At the same time, the piston plate 302 retracts to the position of exposing the connection port 304, so that the outside air enters the air inlet pipe 301 through the connection port 304 to complete the air replenishment, thereby realizing the purging airflow generated by the reciprocating motion of the movable ring 103.

[0070] The one-way valve 306 can be any one of a ball check valve, spring check valve, diaphragm check valve, duckbill valve, or reed valve. This is prior art and will not be described further here.

[0071] In this embodiment, the liquid delivery component is used to continuously supply liquid to the inner cavity of the fixed ring 102 during the reciprocating movement of the support platform 205 along the workpiece axial direction with the displacement component. The liquid delivery component includes a connecting pipe 310 communicating with the liquid cavity 101. The connecting pipe 310 is fixedly disposed inside the processing box 100 and communicates with the liquid cavity 101. A communication port 311 is provided on the connecting pipe 310, extending radially through the connecting pipe 310. A pressure pipe 312 is slidably sleeved inside the communication port 311. A spring a313 is connected between the pressure pipe 312 and the connecting pipe 310. The spring a313 is used to keep the pressure pipe 312 in a reset state when no external force is applied, and the upper end of the pressure pipe 312 protrudes from the outer surface of the connecting pipe 310 so that it can be driven by external structure pressure to generate displacement.

[0072] A pressure ring 314 is slidably connected to the connecting pipe 310. The pressure ring 314 can slide relative to the connecting pipe 310 along its axial direction and moves synchronously with the support platform 205. A connecting box 315 is fixed to the bottom of the pressure ring 314. The connecting box 315 covers part of the bottom of the connecting port 311 and forms a liquid collection and communication space corresponding to the connecting port 311. A bent pipe 316 is connected to the bottom of the connecting box 315. The bent pipe 316 is fixed to the support platform 205 and communicates with the inner cavity of the fixed ring 102, thereby forming a follow-up liquid supply passage between the connecting box 315 and the fixed ring 102.

[0073] During operation, the support platform 205 drives the top pressure ring 314 to move along the connecting pipe 310. When the connecting box 315 covers the corresponding connecting port 311, the top pressure ring 314 exerts a pressing force on the protruding end of the top pressure pipe 312, causing the top pressure pipe 312 to displace relative to the connecting port 311 against the spring a313. This allows the liquid in the connecting pipe 310 to enter the connecting box 315 through the connecting port 311 and be transported to the inner cavity of the fixed ring 102 through the bent pipe 316. When the top pressure ring 314 leaves the corresponding connecting port 311, the top pressure pipe 312 resets under the action of the spring a313, keeping the connecting port 311 in a closed state.

[0074] Therefore, by setting a pressure pipe 312 on the connecting pipe 310 that can be reset under the action of spring a313, and fixing the pressure ring 314 to the support platform 205, the liquid delivery and the axial displacement process of the fixed ring 102 can be linked and coordinated: on the one hand, only when the support platform 205 moves to the predetermined position and the pressure ring 314 covers the corresponding connection port 311, the pressure ring 314 applies pressure to the pressure pipe 312 to open the connection port 311, realizing fixed-point opening and closing liquid supply, reducing ineffective leakage and dripping along the connecting pipe 310, thereby reducing liquid splashing and contamination in the treatment tank 100; on the other hand, the pressure pipe 312 automatically resets under the action of spring a313, and can close the connection port 311 in time when the support platform 205 leaves the liquid supply position, avoiding continuous leakage during reciprocating motion or shutdown, improving the reliability and maintenance convenience of on-site use.

[0075] In this embodiment, the bottom of the sliding table 207 is fixedly provided with the annular connecting frame 400. The annular connecting frame 400 is arranged around the workpiece axis and is used to provide an installation and guiding foundation for the radial linkage of the rust removal section 105. The arc-shaped slide rail 401 is radially slidably connected to the annular connecting frame 400. The arc-shaped slide rail 401 can move forward and backward relative to the annular connecting frame 400 in the radial direction, and the center of the arc-shaped slide rail 401 coincides with the center of the movable ring 103, so that the arc-shaped slide rail 401 and the movable ring 103 are coaxially arranged. Thus, the arc-shaped slide rail 401 can change its radial position relative to the workpiece while maintaining coaxiality, providing an external constraint trajectory for the radial displacement of the connecting shaft 402 described later.

[0076] The fixed ring 102 is radially slidably connected to each of the rust-removing parts 105. Each connecting shaft 402 can slide relative to the fixed ring 102 along the radial direction of the workpiece. One end of each connecting shaft 402 extends toward the rust-removing part 105 and is fixedly connected to the corresponding rust-removing part 105, so that the radial displacement of the connecting shaft 402 can directly drive the rust-removing part 105 to make radial displacement within the movable ring 103; the other end of each connecting shaft 402 is slidably engaged with the arc-shaped slide rail 401, so that this end can slide relative to the extension direction of the arc-shaped slide rail 401. Through the above-mentioned cooperation, when the radial position of the arc-shaped slide rail 401 changes, each of the connecting shafts 402 synchronously generates radial displacement under the constraint of the arc-shaped slide rail 401, thereby enabling the rust removal part 105 to move closer to or further away from the workpiece; at the same time, during the reciprocating swing of the movable ring 103, the other end of the connecting shaft 402 can smoothly slide along the arc-shaped slide rail 401.

[0077] When the arc-shaped slide rail 401 is displaced radially relative to the annular connecting frame 400, causing the rust removal part 105 (steel brush) to radially approach and contact the outer surface of the workpiece, the center of the arc-shaped slide rail 401 will be offset relative to the swing center of the movable ring 103. That is, the arc-shaped slide rail 401 changes from a coaxial state with the movable ring 103 to a non-coaxial state. At this time, the arc-shaped slide rail 401 no longer only plays the role of "equal radius guide", but forms an eccentric constraint trajectory on the outer end of the connecting shaft 402, causing the connecting shaft 402 to generate a radial component displacement that varies with the swing angle during the reciprocating swing of the movable ring 103.

[0078] Specifically, when the movable ring 103 reciprocates around its swing center within a predetermined angle under the action of the displacement component, the connecting shaft 402 moves in a circumferential swing tendency along with the movable ring 103. At the same time, since the other end of the connecting shaft 402 is in sliding fit with the arc-shaped slide rail 401 and the arc-shaped slide rail 401 is eccentric relative to the swing center, the other end of the connecting shaft 402 will be forced to slide relative to the extension direction of the arc-shaped slide rail 401 to satisfy the geometric constraints at both ends of the connecting shaft 402. During the relative sliding process, the constraint direction applied by the arc-shaped slide rail 401 to the outer end of the connecting shaft 402 always points to its own center position, thereby causing the connecting shaft 402 to generate a dynamic radial forward and backward displacement while swinging circumferentially: when the movable ring 103 swings to the side that makes the outer end of the connecting shaft 402 tend to be eccentric, the connecting shaft 402 generates a radial displacement towards the workpiece under the constraint of the arc-shaped slide rail 401, and the tightness of the steel brush against the brushing point increases; when the movable ring 103 swings to the side away from the eccentric direction, the outer end of the connecting shaft 402 moves back along the arc-shaped slide rail 401, and the connecting shaft 402 generates a radial retraction relative to the fixed ring 102, and the contact pressure of the steel brush on the workpiece decreases or a gap is formed.

[0079] Therefore, even if the arc-shaped slide rail 401 and the movable ring 103 are not coaxial during this stage, the movable ring 103 can still drive the connecting shaft 402 and the rust removal part 105 to complete reciprocating swing within a predetermined angle. Furthermore, the outer end of the connecting shaft 402 automatically absorbs the relative displacement caused by eccentricity through sliding within the arc-shaped slide rail 401, preventing jamming. In other words, after radial displacement, the arc-shaped slide rail 401 effectively provides an "eccentric arc-shaped guide" to the outer end of the connecting shaft 402, converting the circumferential swing of the movable ring 103 into a combination of circumferential brushing motion and radial forward and backward motion of the connecting shaft 402. This achieves more thorough circumferential disturbance and more flexible close-and-back movement during the brushing stage, improving the brushing coverage of the rib roots, groove sidewalls, and local uneven areas, and reducing the likelihood of rust powder re-compacting and re-adhering in local areas.

[0080] In this embodiment, to achieve automatic switching of "avoidance-feed" for the rust removal part 105 when the support platform 205 and the sliding platform 207 move back and forth along the first direction and the second direction, the adjusting bracket 403 is slidably connected to the annular connecting frame 400, and the adjusting bracket 403 is movable relative to the annular connecting frame 400 along the workpiece axis; the lead screw c404 is rotatably connected to the sliding platform 207, and the lead screw c404 is threadedly engaged with the adjusting bracket 403, so that when the lead screw c404 rotates, it can drive the adjusting bracket 403 to move along the annular connecting frame 400 axis. The side of the adjusting bracket 403 is connected to the inclined slide rail 405, and the upper end of the inclined slide rail 405 is slidably engaged with the arc-shaped slide rail 401. Thus, when the adjusting bracket 403 moves along the workpiece axial direction, the inclined slide rail 405 forms an inclined guiding effect on the arc-shaped slide rail 401, causing the arc-shaped slide rail 401 to generate radial advance and retreat displacement relative to the annular connecting frame 400. Therefore, through the aforementioned sliding engagement relationship between the connecting shaft 402 and the arc-shaped slide rail 401, the connecting shaft 402 and the rust removal part 105 on it are driven to simultaneously generate radial avoidance or radial feed.

[0081] To automatically drive the lead screw c404 to rotate during the reciprocating motion of the sliding table 207 with the support table 205, a rack c406 is slidably connected to the sliding table 207, and a gear c407 that meshes with the rack c406 is fixedly connected to the lead screw c404, so that the linear displacement of the rack c406 relative to the sliding table 207 can be converted into the rotation of the lead screw c404. A rack d408 is connected to the top of the rack c406, and a gear d409 that meshes with the rack d408 is fixed to the straight section of the crankshaft 210. As the crankshaft 210 rotates along the linear slide rail 206 on the sliding table 207, it rotates through the meshing of gear a212 and rack a209. The gear d409 rotates synchronously with the crankshaft 210 and drives rack d408 and rack c406 to move linearly relative to the sliding table 207, thereby driving gear c407 to rotate and further driving lead screw c404 to rotate, ultimately realizing the axial displacement of the adjusting bracket 403 and the radial displacement of the arc-shaped slide rail 401.

[0082] In terms of action coordination, with the workpiece inlet direction as the first direction and the outlet direction as the second direction: when the support platform 205 and the sliding platform 207 move along the first direction, the rotation direction of the crankshaft 210 causes the gear d409 to push the rack d408 and rack c406 to move in the first predetermined displacement direction. The rack c406 drives the gear c407 to rotate and causes the lead screw c404 to rotate in the first predetermined direction, thereby driving the adjusting bracket 403 to move along the workpiece axis to the corresponding position. Under the guidance of the inclined slide rail 405, the arc-shaped slide rail 401 is radially pushed to the radial position corresponding to the "avoidance condition", so that the connecting shaft 402 drives the steel brush away from the outer surface of the workpiece to form a gap, thereby realizing the avoidance of the rust removal part 105. Conversely, when the support platform 205 and the sliding platform 207 move back along the second direction, the crankshaft 210 rotates in the opposite direction. The gear d409 drives the rack d408 and rack c406 to move in the opposite direction, and the lead screw c404 rotates in the opposite direction and drives the adjusting bracket 403 to move in the opposite direction. The inclined slide rail 405 pulls the arc slide rail 401 to move radially back to the radial position corresponding to the "feed condition", so that the connecting shaft 402 drives the steel brush to radially approach and contact the outer surface of the workpiece, thereby realizing the feeding of the rust removal section 105 and entering the brushing and rust removal state.

[0083] Furthermore, two sliding tooth blocks 410 are slidably connected to one side of the rack d408. The two sliding tooth blocks 410 are located at the top and bottom of one side of the rack d408, respectively, and a spring b411 connects each sliding tooth block 410 to the rack d408. The sliding tooth block 410 is held in a predetermined position under the elastic force of the spring b411 and meshes with the tooth surface of the gear d409 when the gear d409 rotates.

[0084] When the rack d408 is in a working condition that requires maintaining a constant height, or when the vertical displacement of the rack d408 is restricted, the rotation of the gear d409 drives the sliding tooth block 410 to slide relative to the rack d408 and compress the spring b411, thereby allowing the gear d409 to continue rotating without forcibly driving the rack d408 to move up and down, avoiding the resistance and jamming caused by the rigid transmission of gear and rack.

[0085] When the rack d408 is in the allowable displacement condition, the meshing thrust of the gear d409 on the rack d408 can be effectively converted into the upward or downward movement of the rack d408, causing the rack c406 to generate a corresponding displacement and drive the lead screw c404 to rotate, thereby causing the adjusting bracket 403 to move and drive the arc-shaped slide rail 401 to move radially forward or backward through the inclined slide rail 405, so as to realize the steel brush's avoidance or feeding relative to the workpiece.

[0086] In this embodiment, a plurality of rubber sheets 106 are fixed to the inner wall of the fixing ring 102. The plurality of rubber sheets 106 are spaced apart along the circumferential direction of the inner wall of the fixing ring 102, and each rubber sheet 106 extends toward the inner diameter direction of the fixing ring 102, so that the plurality of rubber sheets 106 form a circumferential flexible baffle on the inner side of the fixing ring 102. The inner free end of each rubber sheet 106 is in contact with the outer surface of the workpiece in its natural state. When the workpiece passes through the fixing ring 102 axially, the rubber sheet 106 undergoes elastic deformation under the extrusion of the workpiece and adheres to the outer circumference of the workpiece.

[0087] By setting the aforementioned rubber sheet 106 on the inner wall of the fixed ring 102, on the one hand, it can block and guide the flowing water film formed on the inner wall of the fixed ring 102 and the rust powder and abrasive debris it carries, reducing splashing and secondary pollution caused by the axial overflow of liquid and particles; on the other hand, it can suppress the axial dispersion of the airflow formed by the blowing of the movable ring 103, so that the airflow is more concentrated on the outer surface of the workpiece, improving the rust powder removal effect after blowing disturbance, and making it easier for the detached particles to enter the collection area of ​​the water film on the inner wall of the fixed ring 102, thereby improving the stability and cleanliness of the rust removal process.

[0088] In this embodiment, a drain port a107 is provided at the bottom of the fixed ring 102, and the drain port a107 is located at the lowest point of the fixed ring 102. The flowing water film formed on the inner wall of the fixed ring 102 collects downward along the inner wall under the action of gravity, carrying rust powder, metal shavings and other particles generated during the rust removal process to form a liquid containing impurities. After collecting at the bottom of the fixed ring 102, the liquid is discharged through the drain port a107, so as to achieve directional guidance and centralized recovery of the liquid containing impurities.

[0089] In this embodiment, the bottom of the processing tank 100 is provided with a plurality of drain ports b108. The plurality of drain ports b108 are spaced apart along the length direction of the bottom of the processing tank 100, and each drain port b108 is preferably located at a relatively low position at the bottom of the processing tank 100, so that the liquid in the processing tank 100 can be collected and discharged under the action of gravity.

[0090] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for processing main reinforcement of a pier shaft, comprising a processing box (100) in which a liquid cavity (101) is formed, and workpiece conveying components are arranged on both sides of the processing box (100), characterized in that, Also include: The fixed ring (102) and the movable ring (103) are arranged on the workpiece path, the fixed ring (102) is hollow, a plurality of small holes (104) are arranged on the inner wall of the fixed ring (102), the movable ring (103) is arranged on the side of the fixed ring (102), a plurality of rust removal parts (105) are arranged in the movable ring (103), and the rust removal parts (105) can be radially displaced in the movable ring (103); The liquid conveying part is arranged between the liquid cavity (101) and the fixed ring (102), and is used for conveying liquid into the inner cavity of the fixed ring (102); The displacement part is arranged on the treatment box (100), and is used for driving the fixed ring (102) and the movable ring (103) to displace along the workpiece axis; The displacement part can make the movable ring (103) reciprocate within a predetermined angle when driving the movable ring (103) to move; The displacement part comprises a lead screw a (203) rotatably connected to the treatment box (100), the treatment box (100) is connected with a motor b (204), the output shaft of the motor b (204) is connected with the lead screw a (203), the treatment box (100) is slidably connected with a support table (205), the support table (205) is threadedly connected with the lead screw a (203), the fixed ring (102) is fixed on the support table (205), and the movable ring (103) is rotatably connected to the support table (205); The displacement part further comprises a linear slide rail (206) fixed in the treatment box (100), the linear slide rail (206) is slidably connected with a sliding table (207), the sliding table (207) is fixedly connected with the support table (205), the sliding table (207) is slidably connected with a piston shaft (208), the piston shaft (208) has a linear sliding part and a rotary swing part, the top of the linear slide rail (206) is connected with a rack a (209), the sliding table (207) is rotatably connected with a crankshaft (210), the crankshaft (210) has a straight section and a crank part, the crank part of the crankshaft (210) is rotatably connected with the rotary swing part of the piston shaft (208), the bottom of the linear sliding part of the piston shaft (208) is rotatably connected with a connecting rod (211), the connecting rod (211) is rotatably connected with the movable ring (103), the straight section of the crankshaft (210) is connected with a gear a (212), and the linear slide rail (206) is connected with a rack a (209) meshing with the gear a (212).

2. The reinforcement processing device for a pier shaft according to claim 1, characterized by The workpiece conveying part comprises conveying pipes (200) fixed on both sides of the treatment box (100), a plurality of conveying shafts (201) are arranged on the conveying pipes (200), and a motor a (202) is connected to the conveying pipes (200).

3. The device for processing the main reinforcement of a pier shaft according to claim 1, characterized in that, The movable ring (103) can output gas to the fixed ring (102) when swinging. The movable circular ring (103) is connected with a plurality of air blowing plates (300) near one side of the fixed circular ring (102), and extends to the inside of the fixed circular ring (102). The fixed circular ring (102) is connected with an air inlet pipe (301). The air inlet pipe (301) is slidably connected with a piston sheet (302). The air inlet pipe (301) is rotatably connected with a lead screw b (303) which is threadedly connected with the piston sheet (302). A plurality of connecting openings (304) are formed in the air inlet pipe (301). The air inlet pipe (301) and the air blowing plate (300) are communicated through a hose (305). One end of the air inlet pipe (301) and the hose (305) is provided with a one-way valve (306) for one-way air inlet of the hose (305). The end of the lead screw b (303) is connected with a gear b (307). The movable circular ring (103) is connected with a connecting rod (308). The end of the connecting rod (308) extends to one side of the air inlet pipe (301) and is connected with a rack b (309) which is engaged with the gear b (307).

4. The reinforcement processing device for a pier shaft according to claim 1, characterized by The liquid delivery component comprises a connecting pipe (310) which is communicated with the liquid cavity (101). The connecting pipe (310) is provided with a communication opening (311) which penetrates the connecting pipe (310) in the radial direction. A pressing pipe (312) is slidably arranged in the communication opening (311). The pressing pipe (312) and the connecting pipe (310) are connected with a spring a (313). The upper end of the pressing pipe (312) protrudes from the connecting pipe (310). The connecting pipe (310) is slidably connected with a pressing ring (314). The bottom of the pressing ring (314) is fixedly connected with a connecting box body (315) which covers part of the bottom of the communication opening (311). The bottom of the connecting box body (315) is connected with a bent pipe (316) which is fixedly connected with the support table (205) and communicated with the inner cavity of the fixed circular ring (102).

5. The reinforcement processing device for a pier shaft according to claim 1, wherein When the movable circular ring (103) is driven to move in the first direction, the rust removal part (105) can be displaced by a predetermined distance and moves away from the workpiece. When the movable circular ring (103) is driven to move in the second direction, the rust removal part (105) can be displaced by a predetermined distance and moves close to the workpiece. The bottom of the sliding table (207) is fixedly connected with an annular connecting frame (400). The annular connecting frame (400) is radially slidably connected with an arc-shaped sliding rail (401). The arc-shaped sliding rail (401) is coaxial with the movable circular ring (103). The fixed circular ring (102) is radially slidably connected with a connecting shaft (402). One end of the connecting shaft (402) extends to the rust removal part (105) and is fixedly connected with the rust removal part (105). The other end of the connecting shaft (402) is slidably connected with the arc-shaped sliding rail (401).

6. The reinforcement processing device for a pier shaft according to claim 5, characterized by The annular connecting frame (400) is slidably connected with an adjusting support (403), the sliding table (207) is rotatably connected with a lead screw c (404) which is threadedly connected with the adjusting support (403), the adjusting support (403) is connected with an inclined slide rail (405) on one side, and the upper end of the inclined slide rail (405) is slidably connected with the arc-shaped slide rail (401); The sliding table (207) is slidably connected with a rack c (406), and the lead screw c (404) is connected with a gear c (407) which is engaged with the rack c (406); The top of the rack c (406) is connected with a rack d (408), the straight section of the crankshaft (210) is fixedly connected with a gear d (409) which is engaged with the rack d (408), and the rack d (408) is slidably connected with two sliding tooth blocks (410) on one side, which are respectively located at the top and the bottom of the rack d (408) and are connected with the rack d (408) through springs b (411).

7. The reinforcement processing device for a pier shaft according to claim 1, wherein The inner wall of the fixed ring (102) is fixedly connected with a plurality of rubber sheets (106) arranged along the circumference of the inner wall of the fixed ring (102).

8. The reinforcement processing device for a pier shaft according to claim 1, wherein The bottom of the fixed ring (102) is provided with a liquid discharge port a (107); The bottom of the processing box (100) is provided with a plurality of liquid discharge ports b (108).

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