Planing bridge pier chiseling assembly

Abstract

The present application relates to a kind of gouging equipment assembly of planing pier, belong to concrete impact cleaning technical field.It includes frame and hinged swing frame, and drive mechanism is driven swing frame by crankshaft and drive rod to realize reciprocating planing movement.Swing frame end is rotatably connected with the cutter holder of spiral planing cutter.Cutter holder is connected by rotating shaft, and locking assembly and reciprocating drive assembly are arranged on rotating shaft.Reciprocating drive assembly utilizes telescopic cylinder and one-way bearing, and after planing stroke, it drives cutter holder to automatically index;Locking assembly utilizes ratchet and pawl to one-way, accurately position the cutter holder after rotation.In addition, drive rod is provided with impact unit, which provides auxiliary impact force for planing and can effectively buffer reaction force.The present application realizes efficient, automated gouging operation by mechanized planing and tool automatic indexing, significantly reduces the labor intensity of workers, and reduces the reaction force on the main structure by impact buffering design, improves construction quality and safety.

Description

TECHNICAL FIELD

[0001] The present application relates to a planing type pier chiseling equipment assembly, belonging to the technical field of concrete impact cleaning. BACKGROUND

[0002] In modern civil engineering construction, large volume concrete structures such as bridge piers, bridge towers, and dams, high-rise building core tubes, usually adopt the construction technology of layered and segmented pouring, such as the common climbing formwork or slip form construction method. After each layer of concrete is poured, vibrated and initially set, due to the settlement of aggregates in the concrete and the floating of water and light particles, a low-strength, porous floating slurry layer composed of cement slurry, fine aggregates and impurities will be formed on the top surface of the concrete.

[0003] The presence of the floating slurry layer poses a serious threat to structural safety. If it is not completely removed before pouring the next layer of concrete, the new and old concrete will not form an effective bond, resulting in a structural weak interface, i.e. a "cold joint". This cold joint can greatly reduce the shear strength, tensile strength and impermeability of the interlayer bonding surface, seriously affecting the integrity, carrying capacity and long-term durability of the structure, and may become the starting point of structural failure under the action of earthquakes or heavy loads. Therefore, before subsequent concrete pouring, the surface of the hardened concrete must be "chiseled" or "roughened" to completely remove the floating slurry layer, expose the internal solid aggregates, and form a rough, clean bonding surface to ensure the firm bonding of new and old concrete.

[0004] The inventors have found that the prior art has at least the following technical problems:

[0005] Traditional manual or mechanical impact methods are used. For example, hand-held chisels, axes are used for impact, or wind picks, pneumatic chiseling machines, electrically driven roughening machines, etc. are used for impact treatment. The disadvantages of such methods are obvious:

[0006] Low efficiency and high labor intensity: especially for large cross-section structures such as bridge piers, a large amount of manpower and time is required, which seriously affects the construction progress. SUMMARY

[0007] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a planing type pier chiseling equipment assembly, which reduces the labor intensity of workers and greatly reduces the reaction force caused by impact.

[0008] The planing type pier chiseling equipment assembly according to the present application comprises:

[0009] A rack for connecting a mobile device;

[0010] The planing unit is hingedly connected to the frame for removing the floating layer of the concrete surface to expose the aggregate inside the concrete;

[0011] The impact unit provides impact force for the planing unit;

[0012] The cleaning unit is connected to the lower end of the frame for cleaning the floating layer particles removed by the planing unit;

[0013] The cleaning unit is connected to the lower end of the frame for cleaning the floating layer particles removed by the planing unit;

[0014] The brush unit is connected to the lower end of the frame for brushing the planed concrete to remove the concrete dust on the surface of the aggregate;

[0015] The planing unit comprises a swing frame hingedly connected to the frame, a driving mechanism mounted on the frame, a crankshaft connected to the output end of the driving mechanism, a driving rod hingedly connected to the crankshaft, and the other end of the driving rod hingedly connected to the swing frame;

[0016] The impact unit is arranged on the driving rod;

[0017] The swing frame is rotatably connected to the end of the swing frame, and the swing frame is rotatably connected to the end of the swing frame;

[0018] The swing frame is rotatably connected to the end of the swing frame, and the swing frame is rotatably connected to the end of the swing frame;

[0019] The locking assembly comprises a ratchet wheel hingedly connected to the rotating shaft, and a pawl corresponding to the ratchet wheel is arranged on the swing frame for one-way locking of the ratchet wheel;

[0020] The reciprocating driving assembly comprises an inner sleeve hingedly connected to the rotating shaft, a one-way bearing sleeved on the inner sleeve, a driving sleeve sleeved on the outer side of the one-way bearing, a telescopic cylinder I hingedly connected to the swing frame corresponding to the driving sleeve, and the output end of the telescopic cylinder I is hingedly connected to the driving sleeve.

[0021] Further, the driving sleeve is provided with a positioning assembly, the positioning assembly comprises a positioning column hingedly connected to the driving sleeve, an arc-shaped sliding groove is arranged on the outer side of the driving sleeve, the positioning column is hingedly arranged in the arc-shaped sliding groove, a locking sleeve is connected to the outer side of the positioning column, the positioning column is locked in the arc-shaped sliding groove by means of a screw I, the locking sleeve is sleeved on the positioning column, a locking plate is arranged on the outer side of the locking sleeve, and the locking plate is locked on the outer side of the driving sleeve by means of a screw II.

[0022] The swing frame is provided with a positioning block corresponding to the positioning column, and the positioning column can abut against the positioning block after being driven to rotate by a certain angle.

[0023] Further, the locking assembly, the reciprocating driving assembly and the positioning assembly are arranged at both ends of the rotating shaft, respectively.

[0024] Further, the rotating shaft is designed as a spline, and the rotating shaft is connected with the tool holder, the ratchet wheel or the inner sleeve through the spline.

[0025] Further, the impact unit comprises a connecting plate I, a connecting plate II, a buffer plate and a driving member, the connecting plate II is connected with a guide column, the buffer plate and the connecting plate I are slidingly connected to the guide column, a buffer spring is arranged between the buffer plate and the connecting plate I, the connecting plate II is connected with the driving member, and the driving member can drive the buffer plate to reciprocate.

[0026] The connecting plate I is hingedly connected to the crank through the driving rod at the upper end;

[0027] The connecting plate II is hingedly connected to the swing frame through the driving rod at the lower end.

[0028] Further, the driving member comprises an impact motor connected to the lower end of the connecting plate II, the impact motor is connected with an impact cam at the output end, and the buffer plate is provided with an impact boss corresponding to the impact cam.

[0029] Further, the driving member is arranged at both sides of the lower end of the connecting plate II, and the guide column and the buffer spring are arranged in a mirror image on both sides of the connecting plate II.

[0030] Further, the guide column is sleeved with the buffer spring, the guide column is connected with a piston block at the upper end of the connecting plate I, and the upper end of the connecting plate I is provided with a buffer chamber corresponding to the piston block.

[0031] Further, the cleaning unit comprises a side wing cleaning assembly and a main cleaning assembly, and the side wing cleaning assembly is arranged at the front end of the main cleaning assembly.

[0032] Further, the main cleaning assembly comprises a cleaning frame connected to the lower end of the rack, the cleaning frame is hingedly connected with an adjusting frame, the adjusting frame is rotatably connected with a cleaning roller at the end, a pneumatic motor I is arranged on the outer side of the adjusting frame corresponding to the cleaning roller, and the output end of the pneumatic motor I is connected with the cleaning roller.

[0033] The cleaning frame is hingedly connected with a telescopic cylinder II, and the output end of the telescopic cylinder II is hingedly connected to the adjusting frame.

[0034] Compared with the prior art, the beneficial effects of the present application are:

[0035] This invention utilizes a reciprocating drive assembly comprised of a cleverly designed ratchet pawl and a one-way bearing to achieve automatic, indexed, and unidirectional rotation of the tool holder after each planing stroke. This design allows the spirally arranged sets of planing blades to operate sequentially and alternately, resulting in more even wear and significantly extending the overall service life of the tool set. Furthermore, this automated process requires no human intervention, avoiding the loss of productivity associated with frequent downtime for inspection and tool replacement, and ensuring highly continuous operation.

[0036] The present invention utilizes an oscillating frame driven by a drive mechanism and a crankshaft to achieve automated, reciprocating planing of concrete surfaces. This mechanized motion replaces the traditional, labor-intensive manual labor of handheld jackhammers or chiseling machines, freeing workers from heavy, repetitive manual labor and significantly reducing labor intensity. Furthermore, its continuous, stable operation mode improves chiseling efficiency by several or even dozens of times compared to traditional, intermittent, and inefficient manual methods, effectively shortening the interlayer construction period for large structures such as bridge piers.

[0037] The present invention creatively combines macroscopic planing swings with high-frequency microscopic impacts. The planing unit is responsible for the main material removal, while the impact unit provides auxiliary crushing force, allowing the planer to cut into the concrete surface more easily. More importantly, the buffer spring and other structures set inside the impact unit can effectively absorb and buffer the reaction force generated by the impact, so that it can be dissipated inside the equipment instead of being directly transmitted to the frame and mobile equipment. This not only ensures an efficient chiseling effect, but also greatly reduces the overall vibration of the equipment and the impact on the main structure of the pier, avoiding "internal injuries" such as microcracks that may be caused by traditional impact methods, and is smoother to operate and more friendly to the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is one of the structural diagrams of an embodiment of the present invention;

[0039] Figure 2 This is the second structural diagram of an embodiment of the present invention;

[0040] Figure 3 It is a right side view of an embodiment of the present invention;

[0041] Figure 4 This is the third structural diagram of an embodiment of the present invention;

[0042] Figure 5 yes Figure 4 A partial enlarged view of the middle part;

[0043] Figure 6 This is a schematic structural diagram of an embodiment of the present invention after the drive sleeve is removed;

[0044] Figure 7 yesFigure 6 Detail view of B;

[0045] Figure 8 is a schematic view of the structure of the embodiment of the application after removing one of the buffer chambers;

[0046] Figure 9 is Figure 8 Detail view of C;

[0047] Figure 10 is a schematic view of the structure of the tool holder mounting planing cutter of the embodiment of the application;

[0048] Figure 11 is a schematic view of the structure of the rotating shaft of the embodiment of the application;

[0049] Figure 12 is a schematic view of the structure of the mounting chassis of the embodiment of the application;

[0050] Figure 13 is a right view of the mounting chassis of the embodiment of the application;

[0051] in the figure:

[0052] 1, rack;

[0053] 2, impact unit; 21, buffer chamber; 22, connecting plate I; 24, buffer spring; 25, guide column; 26, driving member; 261, impact cam; 262, impact motor; 27, buffer plate; 271, impact boss; 28, connecting plate II;

[0054] 3, brushing unit;

[0055] 4, cleaning unit;

[0056] 5, sweeping unit; 51, main sweeping assembly; 511, sweeping frame; 512, telescopic cylinder II; 513, sweeping roller; 514, adjusting frame; 52, side wing sweeping assembly;

[0057] 6, planing unit; 61, driving mechanism; 62, crankshaft; 63, swing frame; 64, tool holder; 65, planing cutter; 66, rotating shaft; 67, locking assembly; 671, locking spring; 672, pawl; 673, ratchet wheel; 674, mounting block; 68, reciprocating driving assembly; 681, telescopic cylinder I; 682, driving sleeve; 6821, arc-shaped sliding groove; 683, one-way bearing; 684, inner sleeve; 69, positioning assembly; 691, screw I; 692, screw II; 693, locking sleeve; 694, locking plate; 695, positioning column; 696, positioning block;

[0058] 7, detection unit;

[0059] 100, mobile chassis; 101, lifting telescopic cylinder. DETAILED DESCRIPTION

[0060] Example

[0061] like Figures 1-13 As shown, the planing type pier roughening equipment assembly of the present invention comprises:

[0062] Rack 1, used to connect mobile devices; Figure 12 As shown, the mobile device can be realized by using a mobile chassis 100 in conjunction with a lifting and telescopic cylinder 101. The mobile chassis 100 can be installed with corresponding wheels, or it can be installed on other mobile devices, such as a small tracked vehicle, through the mounting ears at the upper end of the frame 1, and adjusted by the front hydraulic cylinder.

[0063] The planing unit 6 is used to remove the slurry layer on the surface of the concrete, thereby leaking the aggregate inside the concrete, and is hingedly connected to the frame 1;

[0064] Impact unit 2 provides impact force for planing unit 6;

[0065] The cleaning unit 5 is used to clean the slurry layer particles removed by the planing unit 6 and is connected to the lower end of the frame 1;

[0066] The cleaning unit 4 uses negative pressure to clean the slurry layer particles and is connected to the lower end of the frame 1;

[0067] The brushing unit 3 is used to brush the concrete after planing to remove concrete dust on the surface of the aggregate and is connected to the lower end of the frame 1;

[0068] The planing unit 6 includes a swing frame 63 hinged to the frame 1, and a driving mechanism 61 is installed on the frame 1. The output end of the driving mechanism 61 is connected to the crankshaft 62. The crank on the crankshaft 62 is hinged to the driving rod. The other end of the driving rod is hinged to the swing frame 63. The driving mechanism 61 is a motor and a gearbox. The output end of the motor is connected to the gearbox, and the output end of the gearbox is connected to the crankshaft 62.

[0069] The driving rod is provided with an impact unit 2;

[0070] The end of the swing frame 63 is rotatably connected to a tool holder 64, on which a spirally arranged planing knife 65 is provided. After each planing, the planing knife 65 can be rotated at a certain angle to enable another set of spirally arranged planing knives 65 to work, and the planing is carried out in sequence by rotating;

[0071] The tool holder 64 is connected to the end of the swing frame 63 via a rotating shaft 66. The rotating shaft 66 is rotatably connected to the end of the swing frame 63. The rotating shaft 66 is keyed to the tool holder 64. The end of the rotating shaft 66 is connected to a reciprocating drive assembly 68 that drives the rotating shaft 66 to rotate and a locking assembly 67 that positions the rotating shaft 66.

[0072] The locking assembly 67 comprises a ratchet wheel 673 keyed to the rotating shaft 66, and a pawl 672 corresponding to the ratchet wheel 673 is arranged on the swing frame 63 to lock the ratchet wheel 673 in one direction;

[0073] As shown in Figure 5 , the swing frame 63 is hinged with the pawl 672, and the lower end of the swing frame 63 is correspondingly connected with a mounting block 674. The pawl 672 is connected to the mounting block 674 through a locking spring 671 on the side opposite to the ratchet wheel 673, so that the pawl 672 is clamped to the ratchet wheel 673 through the locking spring 671, thereby forming a lock.

[0074] After locking, the planing cutter 65 is located below. When the contact working surface is contacted, the reaction force is applied to the pawl 672 through the ratchet wheel 673, which greatly avoids the damage of the one-way bearing 683 due to the impact force.

[0075] The reciprocating driving assembly 68 comprises an inner sleeve 684 keyed to the rotating shaft 66, the inner sleeve 684 is sleeved with the one-way bearing 683, the one-way bearing 683 is externally sleeved with the driving sleeve 682, the swing frame 63 is correspondingly hinged with the telescopic cylinder I 681, and the output end of the telescopic cylinder I 681 is hinged to the driving sleeve 682. When the telescopic cylinder I 681 is extended, the driving sleeve 682 is driven to rotate, thereby driving the rotating shaft 66 to rotate through the one-way bearing 683 and the inner sleeve 684. After rotation, the pawl 672 is clamped to the ratchet wheel 673 again. When the telescopic cylinder I 681 is retracted, the driving sleeve 682 drives the one-way bearing 683 to idle because the pawl 672 is clamped to the ratchet wheel 673. If a servo motor or a stepping motor is used for rotation, the service life of the motor is greatly reduced due to high-frequency vibration. If a pneumatic or hydraulic motor is used, precise control cannot be achieved. After locking, high-frequency vibration can easily cause high-frequency impact on the pipeline and damage the pneumatic or hydraulic system.

[0076] The support seat of the crankshaft 62 is provided with a detection unit 7, which is a non-contact position sensor. When the crank on the crankshaft 62 rotates to the top, the non-contact position sensor detects the crank, and the telescopic cylinder I 681 acts to realize one reciprocating cycle. When the crank on the crankshaft 62 rotates to the top, the cutter holder 64 is lifted at this time.

[0077] As shown in Figure 5 or Figure 7As shown, the driving sleeve 682 is provided with a positioning assembly 69, which includes a positioning post 695 hinged to the driving sleeve 682, an arc-shaped slide 6821 is provided on the outside of the driving sleeve 682, and the positioning post 695 is hinged in the arc-shaped slide 6821. The outside of the positioning post 695 is connected to a locking sleeve 693, and the positioning post 695 is locked into the arc-shaped slide 6821 by screws I 691. The locking sleeve 693 is fitted onto the positioning post 695. The outside of the locking sleeve 693 is provided with a locking plate 694, and the locking plate 694 is pressed against the outer surface of the driving sleeve 682 by screws II 692 for locking.

[0078] A positioning block 696 is provided on the swing frame 63 corresponding to the positioning column 695 . When the driving sleeve 682 drives the positioning column 695 to rotate a certain angle, the positioning column 695 can abut against the positioning block 696 .

[0079] like Figure 3 As shown, if the tool holder 64 is designed to rotate five times as one circle, the angle between the positioning column 695 and the positioning block 696 is 72 degrees. If the design is designed to rotate six times as one circle, the angle between the positioning column 695 and the positioning block 696 is 60 degrees. The position of the positioning column can be determined by dividing 360 degrees by the number of rotations. At the same time, in order to ensure that the pawl 672 can effectively engage with the ratchet 673, an additional 1 to 2 degrees is usually set. The pawl 672 presses the ratchet 673 downward through the locking spring 671, so that the pawl 672 and the ratchet 673 are fully engaged.

[0080] The locking assembly 67 , the reciprocating drive assembly 68 and the positioning assembly 69 are respectively arranged at both ends of the rotating shaft 66 .

[0081] like Figure 10 As shown in FIG11 , the rotating shaft 66 is designed with a spline as a whole. The rotating shaft 66 is connected to the tool holder 64, the ratchet 673 or the inner sleeve 684 with a spline. The rotating shaft 66 is designed in a split type, which is convenient for installing the tool holder. Finally, it is fixed and installed by internal screws to perform axial positioning of the tool holder. The rotating shaft 66 adopts a spline design, which can make the transmission more stable.

[0082] The impact unit 2 includes a connecting plate I 22, a connecting plate II 28, a buffer plate 27, and a driving member 26. The connecting plate II 28 is connected to a guide post 25. The buffer plate 27 and the connecting plate I 22 are slidably connected to the guide post 25. A buffer spring 24 is provided between the buffer plate 27 and the connecting plate I 22. The connecting plate II 28 is connected to a driving member 26, which can cause the buffer plate 27 to reciprocate.

[0083] The connecting plate I 22 is hinged to the crank via a driving rod at the upper end;

[0084] The connecting plate II 28 is hinged to the swing frame 63 via a driving rod at the lower end.

[0085] The driving member 26 comprises an impact motor 262 connected to the lower end of the connecting plate II 28, and an impact cam 261 connected to the output end of the impact motor 262. The impact boss 271 is arranged on the buffer plate 27 corresponding to the impact cam 261.

[0086] The lower end of the connecting plate II 28 is provided with the driving member 26 on both sides. The guide column 25 and the buffer spring 24 are arranged in mirror symmetry on both sides of the connecting plate II 28, so that the movement is more stable.

[0087] The guide column 25 is sleeved with the buffer spring 24. The piston block is connected to the upper end of the connecting plate I 22. The buffer chamber 21 is arranged on the upper end of the connecting plate I 22 corresponding to the piston block, so as to perform secondary buffering, thereby making the impact process more stable and greatly reducing vibration.

[0088] The cleaning unit 5 comprises a side wing cleaning assembly 52 and a main cleaning assembly 51. The side wing cleaning assembly 52 is arranged to the front end of the main cleaning assembly 51.

[0089] The side wing cleaning assembly 52 adopts a pneumatic cylinder, a hydraulic cylinder or an electric cylinder to drive the two side cleaning discs to move up and down through a parallelogram mechanism, so as to clean the materials on both sides to the middle position.

[0090] The main cleaning assembly 51 comprises a cleaning frame 511 connected to the lower end of the rack 1. The adjusting frame 514 is hingedly connected to the cleaning frame 511. The cleaning roller 513 is rotatably connected to the end of the adjusting frame 514. The pneumatic motor I is arranged on the outer side of the adjusting frame 514 corresponding to the cleaning roller 513. The output end of the pneumatic motor I is connected to the cleaning roller 513.

[0091] The cleaning frame 511 is hingedly connected with the telescopic cylinder II 512. The output end of the telescopic cylinder II 512 is hingedly connected to the adjusting frame 514.

[0092] The cleaning unit 4 comprises a dust suction hood arranged behind the cleaning roller 513. The dust suction hood is mounted on a guide rod. The adjusting telescopic cylinder is hingedly connected to the lower end of the rack 1. The output end of the adjusting telescopic cylinder is hingedly connected to the upper end of the dust suction hood, so as to drive the dust suction hood to move up and down. The dust suction hood is connected with an external dust suction corrugated pipe, and dust is sucked through an external negative pressure source.

[0093] The brush sweeping unit 3 has the same structure as the main cleaning assembly 51. However, the cleaning roller 513 used in the brush sweeping unit 3 is a brush sweeping roller, and a more fine iron wire brush head is adopted.

[0094] Working principle:

[0095] Planing movement principle:

[0096] The device drives the crankshaft 62 to rotate through the driving mechanism 61, and the rotating motion of the crankshaft 62 is transmitted via the impact unit 2 and converted into the reciprocating swing of the swing frame 63. The cutter holder 64 mounted on the front end of the swing frame 63 cooperates with the planing cutter 65 to perform periodic "planing" motion on the concrete surface, which is the main source of power for removing the floating layer.

[0097] Impact assistance principle:

[0098] While the planing motion is in progress, the independent impact unit 2 is working. The impact motor 262 inside it drives the impact cam 261 to rotate, pushing the buffer plate 27 at high frequency. This impact force is flexibly transmitted to the entire planing system connected with the swing frame through the buffer spring 24, providing a high-frequency, small-amplitude auxiliary impact force to the planing cutter 65, helping the cutter to break and cut into the concrete floating layer more effectively. At the same time, the existence of the buffer spring 24 and the buffer chamber 21 allows most of the impact reaction force to be absorbed inside the device, avoiding rigid impact on the main structure. In addition, this stable buffer force also helps to avoid the large amount of aggregate falling caused by excessive impact, thereby better protecting the bonding surface.

[0099] Cutter automatic indexing principle:

[0100] When the swing frame swings to the highest point, i.e., the planing cutter is separated from the working surface, the detection unit 7 triggers the extension cylinder I 681 to act. The extension cylinder I 681 pushes the driving sleeve 682 to rotate, which drives the rotating shaft 66 and the cutter holder 64 to rotate a preset angle through the one-way bearing 683 and the inner sleeve 684. After rotation, the pawl 672 is immediately clamped into the next tooth slot of the ratchet wheel 673 under the action of the spring, realizing accurate and one-way locking of the new position of the cutter holder 64. When the extension cylinder I 681 is retracted, the one-way bearing idles, and the position of the cutter holder 64 remains unchanged. This process realizes the automatic indexing of the planing cutter 65, ensures that different cutter groups work in turn, prolongs the service life of the planing cutter 65, reduces the reaction force, and makes the impact work more stable and accurate.

[0101] Integrated cleaning principle:

[0102] While the device is moving and planing, the cleaning system located at the lower part works in coordination. First, the side wing sweeping assembly 52 gathers the debris on both sides to the middle; then the sweeping roller 513 of the main sweeping assembly 51 further sweeps and concentrates large particle waste; followed by the cleaning unit 4 dust suction cover which uses an external negative pressure source to suck away the waste; finally, the fine brush roller of the brushing unit 3 performs fine brushing on the roughened aggregate surface to remove residual dust. The entire process realizes the "planing - rough sweeping - collection - fine sweeping" assembly line operation.

[0103] Working process:

[0104] Step one, preparation stage:

[0105] The device assembly is installed on a mobile device such as a caterpillar or mobile chassis 100 through the frame 1.

[0106] According to the size of the pier and construction requirements, the initial working height and horizontal position of the assembly are adjusted through the lifting telescopic cylinder 101 and the mobile device, so that the planing cutter 65 is aligned with the surface of the concrete laitance layer to be processed.

[0107] Connect and start the power source such as motor, hydraulic or pneumatic system and negative pressure source.

[0108] Step two, the operation phase is executed in a cycle:

[0109] Start the driving mechanism 61, and the crankshaft drives the swing frame 63 to start reciprocating swing, and the planing cutter 65 starts to plane the surface of the concrete.

[0110] At the same time, the impact motor 262 of the impact unit 2 is started to provide high-frequency auxiliary impact force for the planing cutter, thereby improving the gouging efficiency.

[0111] At the same time of planing, the lower cleaning unit 5, the cleaning unit 4 and the brushing unit 3 automatically start to work, and the collection, suction and surface cleaning of waste are completed synchronously.

[0112] When the swing frame moves to the top of the stroke and the planing cutter is separated from the working surface, the detection unit 7 detects the crank position, and immediately triggers the telescopic cylinder I 681 to complete a telescopic cycle, drives the cutter holder 64 to automatically rotate an angle and is locked by the ratchet and pawl mechanism, so that the next group of sharp planing cutters is replaced to the working position.

[0113] The operator controls the mobile device to slowly and uniformly move the assembly on the surface of the pier, so as to realize continuous and automatic gouging and cleaning operation on the entire section.

[0114] Step three, end phase:

[0115] After completing the gouging treatment of the entire area, the impact unit, the planing unit and the cleaning system are stopped in turn.

[0116] The assembly is moved away from the working surface by the mobile device.

[0117] All power sources are turned off, and the device is cleaned and maintained for the next construction.

[0118] The description of the structure direction and relative position relationship in the application, such as front, back, left, right, up and down, does not constitute a limitation on the application, but is only for convenience of description.

Claims

1. A planing type bridge pier roughening equipment assembly, characterized in that: include: A rack (1) for connecting a mobile device; a planing unit (6) for removing a slurry layer on the surface of the concrete, thereby leaking the aggregate inside the concrete, and being hingedly connected to the frame (1); An impact unit (2) provides an impact force for the planing unit (6); A cleaning unit (5) is used to clean the floating slurry layer particles removed by the planing unit (6), and is connected to the lower end of the frame (1); A cleaning unit (4) is connected to the lower end of the frame (1), which cleans the particles in the slurry layer using negative pressure; A brushing unit (3) is used to brush the concrete after planing to remove concrete dust on the surface of the aggregate, and is connected to the lower end of the frame (1); The planing unit (6) includes a swing frame (63) hinged to the frame (1), a driving mechanism (61) is mounted on the frame (1), an output end of the driving mechanism (61) is connected to a crankshaft (62), a crank on the crankshaft (62) is hinged to a driving rod, and the other end of the driving rod is hinged to the swing frame (63); An impact unit (2) is provided on the driving rod; The end of the swing frame (63) is rotatably connected to a tool holder (64), and a spirally arranged planing knife (65) is provided on the tool holder (64). The planing knife (65) can be rotated at a certain angle after each planing to enable another set of spirally arranged planing knives (65) to work, and the planing is performed in sequence by rotating; The tool holder (64) is connected to the end of the swing frame (63) through a rotating shaft (66), the rotating shaft (66) is rotatably connected to the end of the swing frame (63), the rotating shaft (66) is key-connected to the tool holder (64), and the end of the rotating shaft (66) is connected to a reciprocating drive assembly (68) that drives the rotating shaft (66) to rotate and a locking assembly (67) that positions the rotating shaft (66); The locking assembly (67) includes a ratchet (673) connected to the rotating shaft (66) by a key, and a ratchet pawl (672) is provided on the swing frame (63) corresponding to the ratchet (673) for one-way locking of the ratchet (673); The reciprocating drive assembly (68) includes an inner sleeve (684) keyed to the rotating shaft (66), the inner sleeve (684) is provided with a one-way bearing (683), the one-way bearing (683) is provided with a drive sleeve (682) on the outside, and a telescopic cylinder I (681) is correspondingly hinged on the swing frame (63), and the output end of the telescopic cylinder I (681) is hinged to the drive sleeve (682). When the telescopic cylinder I (681) is extended, the drive sleeve (682) is driven to rotate, thereby driving the rotating shaft (66) to rotate through the one-way bearing (683) and the inner sleeve (684). After the rotation, the pawl (672) is re-engaged with the ratchet (673). When the telescopic cylinder I (681) is retracted, the pawl (672) is engaged with the ratchet (673), and the drive sleeve (682) drives the one-way bearing (683) to idle.

2. The planing type bridge pier roughening equipment assembly according to claim 1 is characterized in that: A positioning assembly (69) is provided on the driving sleeve (682), and the positioning assembly (69) includes a positioning column (695) hinged to the driving sleeve (682). An arc-shaped slide groove (6821) is provided on the outside of the driving sleeve (682), and a positioning column (695) is hinged in the arc-shaped slide groove (6821). A locking sleeve (693) is connected to the outside of the positioning column (695). The positioning column (695) is locked into the arc-shaped slide groove (6821) by screw I (691). The locking sleeve (693) is sleeved onto the positioning column (695). A locking plate (694) is provided on the outside of the locking sleeve (693). The locking plate (694) is pressed against the outer surface of the driving sleeve (682) by screw II (692) for locking. A positioning block (696) is provided on the swing frame (63) corresponding to the positioning column (695). When the driving sleeve (682) drives the positioning column (695) to rotate a certain angle, the positioning column can abut against the positioning block (696).

3. The planing type bridge pier roughening equipment assembly according to claim 2 is characterized in that: The locking assembly (67), the reciprocating drive assembly (68) and the positioning assembly (69) are respectively arranged at both ends of the rotating shaft (66).

4. The planing type bridge pier roughening equipment assembly according to claim 1 is characterized in that: The rotating shaft (66) is designed as a whole with a spline, and the rotating shaft (66) and the tool holder (64), the ratchet (673) or the inner sleeve (684) are all connected by splines.

5. The planing type bridge pier roughening equipment assembly according to claim 1 is characterized in that: The impact unit (2) includes a connecting plate I (22), a connecting plate II (28), a buffer plate (27) and a driving member (26), wherein the connecting plate II (28) is connected to a guide column (25), the buffer plate (27) and the connecting plate I (22) are slidably connected to the guide column (25), a buffer spring (24) is provided between the buffer plate (27) and the connecting plate I (22), and the connecting plate II (28) is connected to a driving member (26), and the driving member (26) can make the buffer plate (27) reciprocate; The connecting plate I (22) is hinged to the crank via a driving rod at the upper end; The connecting plate II (28) is hinged to the swing frame (63) via a driving rod at the lower end.

6. The planing type bridge pier roughening equipment assembly according to claim 5 is characterized in that: The driving member (26) includes an impact motor (262) connected to the lower end of the connecting plate II (28), an output end of the impact motor (262) is connected to an impact cam (261), and an impact boss (271) is provided on the buffer plate (27) corresponding to the impact cam (261).

7. The planing type bridge pier roughening equipment assembly according to claim 6 is characterized in that: Both sides of the lower end of the connecting plate II (28) are provided with driving members (26), and the guide column (25) and the buffer spring (24) are arranged on both sides of the connecting plate II (28) in a mirror-symmetrical manner.

8. The planing type bridge pier roughening equipment assembly according to claim 5 is characterized in that: A buffer spring (24) is sleeved on the guide column (25), and the guide column (25) is located at the upper end of the connecting plate I (22) and is connected to a piston block. A buffer chamber (21) is provided at the upper end of the connecting plate I (22) corresponding to the piston block.

9. The planing type bridge pier roughening equipment assembly according to claim 1 is characterized in that: The cleaning unit (5) comprises a wing cleaning assembly (52) and a main cleaning assembly (51), wherein the wing cleaning assembly (52) is arranged at the front end of the main cleaning assembly (51).

10. The planing type bridge pier roughening equipment assembly according to claim 1, characterized in that: The main cleaning component (51) includes a cleaning frame (511) connected to the lower end of the frame (1), an adjustment frame (514) is hingedly connected to the cleaning frame (511), an end of the adjustment frame (514) is rotatably connected to a cleaning roller (513), an air motor I is provided on the outer side of the adjustment frame (514) corresponding to the cleaning roller (513), and an output end of the air motor I is connected to the cleaning roller (513); A telescopic cylinder II (512) is hingedly connected to the cleaning frame (511), and an output end of the telescopic cylinder II (512) is hingedly connected to the adjustment frame (514).

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