Automatic polishing device for bridge formwork

Abstract

The utility model discloses an automatic polishing device for a bridge formwork. The automatic polishing device comprises a main beam, a pulley, a swing telescopic arm, a polishing mechanism and a walking mechanism. The main beam is arranged in the transverse direction of the formwork. The walking mechanism is used for driving the main beam to move in the longitudinal direction of the formwork. The pulley is slidably mounted on the main beam; the upper end of the swinging telescopic arm is rotationally mounted on the pulley, and the swinging telescopic arm can be telescopically adjusted; the polishing mechanism is installed at the lower end of the swing telescopic arm and used for polishing the template surface. The template polishing device can adapt to polishing of templates with different transverse sizes through sliding of the tackle, and can adapt to polishing of templates with different longitudinal sizes through longitudinal movement of the main beam, so that the adaptability of the template polishing device is improved; the swing angle of the polishing roller is adjusted through rotary swing of the swing telescopic arm and driving of the swing driving mechanism. And through telescopic adjustment of the swing telescopic arm, adjustment of the movable radius of the grinding roller is achieved, so that the device can adapt to grinding of templates with different surface profiles, and the adaptability of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge template maintenance equipment, in particular to an automatic bridge template grinding device. Background Art

[0002] After the box girder is cast and demolded, the concrete remaining on the formwork needs to be polished to facilitate the reuse of the formwork. Over- or under-polishing will affect the appearance of the box girder. Patent application number CN202210312818.1 discloses a box girder mold cleaning device, which is equipped with a main frame, on which are mounted multi-directional grinding components, pulleys, motors, spraying components, dust removal components, lifting components, etc. The two ends of the overall frame are placed on the wing plates of the formwork through sliding tracks. The above structure has the advantages of fast grinding time and thorough cleaning compared to traditional manual grinding. The main frame of the above equipment is fixed in size, and the grinding roller can move in a small range. When the formwork changes significantly, a complete set of mold cleaning equipment needs to be replaced, and the adaptability is insufficient. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an automatic bridge template grinding device, which has strong adaptability and can be used for cleaning templates of various specifications.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] An automatic grinding device for bridge formwork, comprising a main beam, a pulley, a swing telescopic arm, a grinding mechanism and a traveling mechanism; the main beam is arranged above the formwork, and the main beam is arranged along the transverse direction of the formwork; the traveling mechanism is used to drive the main beam to move along the longitudinal direction of the formwork; the pulley is movably mounted on the main beam, and the pulley moves along the transverse direction of the formwork; the upper end of the swing telescopic arm is rotatably mounted on the pulley, the swing telescopic arm is telescopically adjustable, and a swing driving mechanism is connected between the swing telescopic arm and the pulley to drive the swing telescopic arm to rotate; the grinding mechanism is mounted on the lower end of the swing telescopic arm, and is used to grind the surface of the formwork.

[0006] Furthermore, the swing telescopic arm includes a swing arm and a telescopic adjustment arm; the upper end of the swing arm is rotatably mounted on the pulley; the telescopic adjustment arm is connected to the swing arm and can be telescopically adjusted relative to the swing arm; one end of the telescopic driving mechanism is connected to the telescopic adjustment arm, and the other end is connected to the swing arm to drive the telescopic adjustment arm to telescopically move relative to the swing arm; wherein the grinding mechanism is installed at the lower end of the telescopic adjustment arm.

[0007] Furthermore, it also includes a buffer structure and a sliding guide assembly; one end of the buffer structure is connected to the grinding mechanism, and the other end is connected to the telescopic adjustment arm, which is used to buffer the reaction force applied by the template to the grinding mechanism.

[0008] Furthermore, the main beam is connected to a side grinding device, and the side grinding device is used to grind the side of the template.

[0009] Furthermore, the swing drive mechanism includes a fixed part and a telescopic part, the upper end of the telescopic part is telescopically arranged relative to the lower end of the fixed part, the lower end of the fixed part is hinged to the pulley, and the lower end of the telescopic part is hinged to the swing telescopic arm; the angle of the length direction of the swing telescopic arm relative to the sliding track of the pulley is θ, the rotation range of the swing telescopic arm is 20°≤θ≤110°, and when the swing telescopic arm rotates downward, the angle θ approaches a value of 90°.

[0010] Furthermore, the front and rear ends of the pulley are provided with outwardly protruding anti-collision structures for cushioning the collision of the pulley in the front and rear directions.

[0011] Furthermore, the pulley is installed with a motor, the output shaft of the motor is connected to a traveling gear, and the main beam is provided with a rack extending along the transverse direction of the template and meshing with the traveling gear.

[0012] Furthermore, the main beam is provided with a track, and the pulley is provided with rollers in contact with the upper surface of the track and guide wheels in contact with the side surfaces of the track.

[0013] Furthermore, the pulley is provided with a dust collection system, which includes a dust suction device, a dust collection box and a dust suction head. The dust suction head is connected to the dust collection box and is adjacent to the polishing mechanism. The dust suction device is connected to the dust collection box to provide negative pressure to the dust collection box.

[0014] Furthermore, the pulley, the swing telescopic arm and the grinding mechanism are provided in two sets, which are respectively used for grinding the two sides of the template in the transverse direction.

[0015] The utility model has the following beneficial effects:

[0016] Through the sliding of the pulley, it can adapt to the grinding of templates with different transverse sizes. Through the longitudinal movement of the main beam, different positions in the longitudinal direction of the template can be gradually ground, which can adapt to the grinding of templates with different longitudinal sizes, thereby improving the adaptability of the device. Through the rotation and swing of the swing telescopic arm and the drive of the swing drive mechanism, the swing angle of the grinding mechanism can be adjusted. Then, through the telescopic adjustment of the swing telescopic arm, the active radius of the grinding mechanism can be adjusted. Through the adjustment of the swing angle and active radius of the grinding mechanism in two dimensions, the grinding mechanism can be adaptively adjusted according to the surface contour of the template within the adjustment range, thereby adapting to the grinding of templates with different surface contours, effectively improving the adaptability of the device and reducing equipment costs.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the connection structure of the pulley of the utility model;

[0021] Figure 3 It is a schematic diagram of the connection structure at the bottom of the pulley of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the telescopic adjustment arm of the utility model in a retracted state;

[0023] Figure 5 It is a structural schematic diagram of the telescopic adjustment arm of the utility model in an extended state.

[0024] Legend:

[0025] 100, main beam; 101, pulley; 102, template; 110, anti-collision structure; 120, motor; 121, travel gear; 130, roller; 140, guide wheel; 150, grinding motor; 151, grinding side roller;

[0026] 200, swing telescopic arm; 210, swing arm; 220, telescopic adjustment arm;

[0027] 300, swing drive mechanism; 310, fixing member; 320, telescopic member;

[0028] 400, grinding mechanism; 410, roller frame; 420, grinding roller; 430, grinding drive mechanism;

[0029] 500, telescopic drive mechanism;

[0030] 600, buffer structure;

[0031] 700, sliding guide assembly; 710, guide sleeve; 720, guide post;

[0032] 800. Walking mechanism. DETAILED DESCRIPTION

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0037] Please refer to Figure 1 and Figure 2 The utility model provides an automatic bridge formwork grinding device in a preferred embodiment, which includes a main beam 100, a pulley 101, a swing telescopic arm 200, a grinding mechanism 400 and a walking mechanism 800.

[0038] The main beam 100 is arranged above the template, and the main beam 100 is arranged along the transverse direction of the template. The main beam 100 spans above the template, and the length of the main beam 100 covers the transverse width of the template 102; the walking mechanism 800 is used to drive the main beam 100 to move along the longitudinal direction of the template, and the longitudinal direction of the template is the length direction of the template; the pulley 101 is movably installed on the main beam 100, and the pulley 101 moves along the transverse direction of the template; the upper end of the swing telescopic arm 200 is rotatably installed on the pulley 101, and the rotation axis of the swing telescopic arm 200 is parallel to the longitudinal direction of the template 102; the swing telescopic arm is telescopically adjustable, specifically, the sliding direction of the pulley 101 is perpendicular to the rotation axis of the swing telescopic arm 200, and a swing driving mechanism 300 for driving the swing telescopic arm 200 to rotate is connected between the swing telescopic arm 200 and the pulley 101; the grinding mechanism 400 is installed at the lower end of the swing telescopic arm 200, and is used to grind the template surface.

[0039] The automatic bridge template grinding device provided by the embodiment of the utility model can adapt to the grinding of templates 102 of different transverse sizes through the sliding of the pulley 101, and can be segmented and polished for templates 102 with longer lengths through the longitudinal movement of the main beam 100, and can adapt to the cleaning and grinding of templates 102 of different lengths. When encountering the cleaning and grinding of templates 102 with longer lengths, it is not necessary to use the grinding mechanism 400 with a length adapted thereto for cleaning and grinding. The template 102 can be gradually cleaned and polished by the shorter grinding mechanism 400 and the movement of the main beam 100, thereby reducing the overall installation time. The volume of the device is reduced, thereby improving the adaptability of the device; the swing angle of the grinding mechanism 400 is adjusted by the rotation and swing of the swing telescopic arm 200 and the driving of the swing driving mechanism 300; and the active radius of the grinding mechanism 400 is adjusted by the telescopic adjustment of the swing telescopic arm 200. By adjusting the swing angle and the active radius of the grinding mechanism 400 in two dimensions, the grinding mechanism 400 can be adaptively adjusted according to the surface profile of the template 102 within the adjustment range, so as to adapt to the grinding of templates 102 with different surface profiles, thereby effectively improving the adaptability of the device and reducing the equipment cost.

[0040] Reference Figure 4 and Figure 5The swing telescopic arm 200 includes a swing arm 210 and a telescopic adjustment arm 220; the upper end of the swing arm 210 is rotatably mounted on the pulley 101; the telescopic adjustment arm 220 is connected to the swing arm 210 and can be telescopically adjusted relative to the swing arm 210; one end of the telescopic driving mechanism 500 is connected to the telescopic adjustment arm 220, and the other end is connected to the swing arm 210, so as to drive the telescopic adjustment arm 220 to telescope relative to the swing arm 210; wherein the grinding mechanism 400 is installed at the lower end of the telescopic adjustment arm 220, and the grinding mechanism 400 can adjust the position of the telescopic adjustment arm 220 to achieve the adjustment of the grinding radius. Specifically, the telescopic adjustment arm 220 can be telescopically adjusted along the length direction of the swing arm 210, and the lower end of the swing arm 210 is provided with two telescopic openings extending along the length direction thereof, and the telescopic adjustment arm 220 is provided with a telescopic column 221 inserted into the telescopic opening, thereby achieving the telescopic guide of the telescopic adjustment arm 220 and the swing arm 210, such as Figure 4 The telescopic adjustment arm 220 is in a retracted state. Figure 5 The telescopic adjustment arm 220 is in an extended state. The telescopic adjustment arm 220 can be adjusted according to the distance from the surface of the template 102 to adapt to the surface contour of the template 102 .

[0041] Reference Figures 3 to 5 In some embodiments of the utility model, the automatic grinding device for bridge formwork also includes a buffer structure 600; one end of the buffer structure 600 is connected to the grinding mechanism 400, and the other end is connected to the telescopic adjustment arm 220, which is used to buffer the reaction force applied by the formwork to the grinding mechanism 400; through the buffer structure 600, when the grinding mechanism 400 hard contacts the surface of the formwork 102, it will shrink and retreat and perform buffering, ensuring that the grinding mechanism 400 is in contact with the formwork 102, but no rigid collision will occur, thereby ensuring the grinding effect while avoiding the grinding mechanism 400 from damaging the formwork 102, and playing a certain protective role on the surface of the formwork 102 and the grinding mechanism 400.

[0042] In a further embodiment of the utility model, the buffer structure 600 is a cylinder, which includes a first cylinder body and a first push rod telescopically mounted on the first cylinder body, the first cylinder body is connected to the telescopic adjustment arm 220, and the outer end of the first push rod is connected to the grinding mechanism 400. When the grinding mechanism 400 is subjected to a large force from the template, it will push the first push rod to contract and compress the air, which plays a buffering role, and can also use the extension of the first push rod to drive the grinding mechanism 400 to extend and retract in a small range, and further adaptively adjust the active radius of the grinding mechanism 400. It can be understood that the cylinder will be used in conjunction with an air pump, and the strength of the buffer can be adjusted by adjusting the output air pressure of the air pump.

[0043] Reference Figures 3 to 5In a specific embodiment of the utility model, the grinding mechanism 400 includes a roller frame 410, a grinding roller 420 and a grinding drive mechanism 430. The grinding roller 420 is installed on the side of the roller frame 410 facing away from the swing arm 210. The roller frame 410 is installed at the lower end of the telescopic adjustment arm 220 and can move along the length direction of the swing arm 210 through the telescopic adjustment arm 220. The grinding drive mechanism 430 is installed on the roller frame 410. The output end of the grinding drive mechanism 430 is connected to the grinding roller 420 for driving the grinding roller 420 to rotate along its own axis to grind the surface of the template 102. It should be noted that the rotation axis of the grinding roller 420 and the rotation axis of the swing arm 210 are parallel to the longitudinal direction of the template 102. It is understandable that a grinding structure, such as a steel wire, is provided on the surface of the grinding roller 420. The grinding roller 420 and the grinding structure thereon are driven to rotate by the grinding drive mechanism 430, thereby grinding the concrete on the template 102. The steel wire prevents the grinding roller 420 from directly and rigidly contacting the template 102, and tries not to damage the template 102. In addition, the connection between the first cylinder body and the telescopic adjustment arm 220 and the connection between the first push rod and the roller frame 410 are both hinged, which is convenient for installation and disassembly.

[0044] One end of the buffer structure 600 is specifically connected to the roller frame 410, and is used to buffer the relative sliding of the roller frame 410 toward the telescopic adjustment arm 220. Specifically, the roller frame 410 is installed at the lower end of the telescopic adjustment arm 220 and can telescopically slide relative to the telescopic adjustment arm 220. The sliding direction of the roller frame 410 is parallel to the sliding direction of the telescopic adjustment arm 220 relative to the swing arm 210. The grinding drive mechanism 430 can be a motor. One end of the grinding roller 420 extends out of the roller frame 410 and is connected to the motor through a conveyor belt or a chain, thereby realizing the rotation drive of the grinding roller 420.

[0045] In a further embodiment of the utility model, a sliding guide assembly 700 is further included. The sliding guide assembly 700 includes a guide sleeve 710 provided on the telescopic adjustment arm 220 and a guide post 720 provided on the grinding mechanism 400. Specifically, the guide post 720 is connected to the roller frame 410. The guide sleeve 710 is provided with a guide hole adapted to the guide post 720. The guide post 720 is movably inserted into the guide hole. Usually, at least two groups of the sliding guide assembly 700 are provided to ensure the limiting guide effect. Through the sliding cooperation between the guide post 720 and the guide hole, the sliding stability of the telescopic adjustment arm 220 and the roller frame 410 is improved to ensure the grinding effect.

[0046] Of course, in some other embodiments, the buffer structure 600 can be other elastic buffer structures. For example, the buffer structure 600 can be a spring, one end of which acts on the telescopic adjustment arm 220, and the other end acts on the grinding roller 420 (roller frame 410), so as to apply an elastic force to the grinding roller 420. The spring can be a compression spring, which is sleeved on the guide column 720, one end of which abuts against the telescopic adjustment arm 220, and the other end abuts against the roller frame 410, so as to apply an elastic force to the roller frame 410. Of course, when the buffer structure 600 adopts a cylinder, relative to the spring, the cylinder can achieve constant pressure output, so as to avoid uneven grinding caused by large deformation of a certain part and large grinding force.

[0047] In addition, in order to limit the movable stroke of the roller frame 410, the end of the guide column 720 facing away from the grinding roller 420 passes through the guide sleeve 710 and is installed with a limit head. The outline of the limit head is larger than the guide hole, that is, the limit head cannot pass through the guide hole to prevent the guide column 720 from detaching from the guide hole. The limit head and the guide column 720 can be threadedly connected to achieve detachability, which is convenient for subsequent disassembly and maintenance.

[0048] Reference Figure 1 In some embodiments of the present invention, the main beam 100 is connected to a side grinding device, and the side grinding device is used to grind the side 103 of the template 102. Specifically, the side grinding device includes a grinding motor 150 and a grinding side roller 151, and the output shaft of the grinding motor 150 is connected to the grinding side roller 151 in a transmission manner, thereby driving the grinding side roller 151 to rotate, and the rotation axis of the grinding side roller 151 is vertically arranged, and is used to be with the inner surface of the side 103 of the template 102, and the side grinding device can move longitudinally with the main beam 100 to perform comprehensive grinding on the side 103.

[0049] Reference Figure 2 and Figure 3In some embodiments of the present invention, the swing drive mechanism 300 includes a fixed member 310 and a telescopic member 320. The upper end of the telescopic member 320 is telescopically arranged relative to the lower end of the fixed member 310. The telescopic member 320 telescopes and moves to drive the swing telescopic arm 200 to rotate, thereby adjusting the angle of the swing telescopic arm 200. The lower end of the fixed member 310 is hinged to the pulley 101, and the lower end of the telescopic member 320 is hinged to the swing telescopic arm 200. Compared with the upper end of the fixing member 310 being hinged to the pulley 101, the lower end of the fixing member 310 being hinged to the pulley 101 can avoid the length of the fixing member 310 affecting the degree of folding of the swing arm 210. If, in order to avoid the fixing member 310 affecting the degree of folding of the swing arm 210 and the upper end of the fixing member 310 needs to be hinged to the pulley 101, the pulley 101 needs to be equipped with a higher mounting frame for the hinge of the upper end of the fixing member 310, and the structure is more complicated and the cost is higher. However, when the lower end of the fixing member 310 is hinged to the pulley 101, it is only necessary to set an articulated seat on the pulley 101, and at the same time, it is avoided that the length of the fixing member 310 affects the degree of folding of the swing arm 210, so that the swing arm 210 has a better range of motion and is more flexible.

[0050] Specifically, the swing drive mechanism 300 can be a telescopic oil cylinder, the fixed part is the cylinder body of the telescopic oil cylinder, and the telescopic part is the push rod of the telescopic oil cylinder; the telescopic movement of the telescopic oil cylinder is converted into the rotation and swing of the swing arm 210 by hinged connection at both ends. The telescopic oil cylinder can provide sufficient driving force and can better ensure the driving stability compared with the cylinder. Of course, in some other embodiments, the swing drive mechanism 300 can also be other mechanisms with rotation driving function such as cylinders and motors.

[0051] Specifically, the angle of the length direction of the swing telescopic arm 200 relative to the sliding track of the pulley 101 is θ, the rotation range of the swing telescopic arm 200 is 20°≤θ≤110°, and when the swing telescopic arm 200 rotates downward, the angle θ approaches to 90°, so that the rotation range of the swing telescopic arm 200 is sufficient to meet the grinding requirements of the template 101, and avoids the swing range of the swing telescopic arm 200 being too large, which leads to a longer telescopic stroke requirement for the swing drive mechanism 300, resulting in a longer overall size of the swing drive mechanism 300 and a higher cost.

[0052] Reference Figure 1 In some embodiments of the present invention, the main beam 100 spans over both sides of the template in the transverse direction, so that the processing range of the device covers the entire template, ensuring that the inner wall of the template 102 can be polished and processed to ensure the polishing effect. The structures on both sides of the template in the transverse direction are flanges or auxiliary structures arranged near the flanges, and the auxiliary structures can be walking boards, brackets, etc.

[0053] In a further embodiment of the utility model, the front and rear ends of the pulley 101 are provided with an outwardly protruding anti-collision structure 110, which is used to buffer the collision of the pulley 101 in the front and rear directions. The anti-collision structure 110 can be made of rubber material to buffer the collision. In addition, in order to limit the stroke of the pulley 101, limit plates are provided at both ends of the main beam 100, and the limit plates are correspondingly arranged with the anti-collision structure 110. When the pulley 101 slides to the end of the stroke, the anti-collision structure 110 and the limit plates are offset, thereby achieving limit and collision buffering, reducing equipment damage caused by rigid collisions, and improving the life of the device.

[0054] Of course, in some other embodiments, the anti-collision structure 110 may also be a spring telescopic column assembly to achieve a collision buffering effect through the elastic action of the spring.

[0055] In a further embodiment of the present invention, the pulley 101 is equipped with a motor 120, the output shaft of the motor 120 is connected to a travel gear 121, and the main beam 100 is provided with a rack extending in the transverse direction of the template and meshing with the travel gear 121. Figure 1 The front-to-back direction is the width direction of the template. The motor 120 drives the travel gear 121 to rotate and the travel gear 121 is meshed with the rack to achieve the forward and backward movement of the pulley 101. The driving structure is simple, the driving is stable, and the installation and maintenance are convenient.

[0056] Of course, in some other embodiments, the pulley 101 may be driven in other ways to move forward and backward, such as using a winch and a steel rope to pull the pulley 101 forward and backward, or using a motor and a ball screw nut pair to achieve the forward and backward movement of the pulley 101.

[0057] In a further embodiment of the utility model, the main beam 100 is provided with a track, and the pulley 101 is provided with a roller 130 in contact with the upper surface of the track and a guide wheel 140 in contact with the side of the track. The roller 130 reduces the resistance of the pulley 101 to move forward and backward, and the guide wheel 140 guides and limits the sliding of the pulley 101. Specifically, two tracks are arranged in parallel and at intervals, and two groups of rollers 130 and guide wheels 140 are arranged corresponding to the two tracks. Both groups of guide wheels 140 are located on the inner side or the outer side of the two tracks, so as to guide and limit the pulley 101 in the left and right directions, thereby ensuring the stability of the pulley 101 moving forward and backward.

[0058] Specifically, the walking mechanism 800 may include a motor, a guide rail and a pulley, the pulley is installed at the bottom of the main beam 100, the pulley cooperates with the guide rail to achieve guidance, the guide rail extends along the longitudinal direction of the template 102, and the motor is used to drive the pulley to rotate to achieve movement. Of course, the walking mechanism 800 can also be other forms of structure, such as a winch, gear and rack structure.

[0059] In order to reduce dust, in some embodiments, a dust collection system 900 is provided on the pulley 101, and the dust collection system 900 includes a dust suction device 910, a dust box 920 and a dust suction head. The dust suction head is connected to the dust box 920 and is adjacent to the grinding mechanism 400. The dust suction device 910 is connected to the dust box 920 to provide negative pressure to the dust box 920. Specifically, the dust suction device 910 can be a fan, and the dust suction head and the dust box 920, and the dust suction device 910 and the dust box 920 can be connected through pipelines. A plurality of dust suction heads can be arranged along the length direction of the grinding roller 420, so as to realize multi-position dust suction and improve the dust suction effect. A filter can be set in the dust box 920 to intercept dust.

[0060] In some embodiments, two sets of pulleys 101, swing telescopic arms 200, and grinding mechanisms 400 are provided, which are used to grind the two sides of the template in the transverse direction, so as to improve the working efficiency. Multiple pulleys clean different positions of the template 102 and work at the same time, shortening the working time and improving the cleaning efficiency. Of course, in some other embodiments, the pulleys 101, swing telescopic arms 200, and grinding mechanisms 400 can be provided in other numbers, which are not limited here.

[0061] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic bridge template grinding device, characterized in that: It comprises a main beam (100), a pulley (101), a swing telescopic arm (200), a grinding mechanism (400) and a walking mechanism (800); The main beam (100) is arranged above the template, and the main beam (100) is arranged along the transverse direction of the template; The walking mechanism (800) is used to drive the main beam (100) to move along the longitudinal direction of the template; The pulley (101) is movably mounted on the main beam (100), and the pulley (101) moves in the transverse direction of the template; The upper end of the swing telescopic arm (200) is rotatably mounted on the pulley (101); the swing telescopic arm is telescopically adjustable; a swing driving mechanism (300) is connected between the swing telescopic arm (200) and the pulley (101) to drive the swing telescopic arm (200) to rotate; The grinding mechanism (400) is installed at the lower end of the swing telescopic arm (200) and is used for grinding the surface of the template.

2. The automatic bridge formwork grinding device according to claim 1 is characterized in that: It also includes a telescopic driving mechanism (500), wherein the swing telescopic arm (200) includes a swing arm (210) and a telescopic adjustment arm (220); The upper end of the swing arm (210) is rotatably mounted on the pulley (101); The telescopic adjustment arm (220) is connected to the swing arm (210) and can be telescopically adjusted relative to the swing arm (210); One end of the telescopic driving mechanism (500) is connected to the telescopic adjustment arm (220), and the other end is connected to the swing arm (210), so as to drive the telescopic adjustment arm (220) to telescope relative to the swing arm (210); The grinding mechanism (400) is installed at the lower end of the telescopic adjustment arm (220).

3. The automatic bridge formwork grinding device according to claim 2 is characterized in that: Also included is a buffer structure (600); One end of the buffer structure (600) is connected to the grinding mechanism (400), and the other end is connected to the telescopic adjustment arm (220), and is used to buffer the reaction force exerted by the template on the grinding mechanism (400).

4. The automatic bridge formwork grinding device according to claim 1 is characterized in that: The main beam (100) is connected to a side grinding device, and the side grinding device is used to grind the side of the template.

5. The automatic bridge formwork grinding device according to claim 1 is characterized in that: The swing drive mechanism (300) comprises a fixed part (310) and a telescopic part (320); the upper end of the telescopic part (320) is telescopically arranged relative to the lower end of the fixed part (310); the lower end of the fixed part (310) is hinged to the pulley (101); and the lower end of the telescopic part (320) is hinged to the swing telescopic arm (200); the angle of the length direction of the swing telescopic arm (200) relative to the sliding track of the pulley (101) is θ; the rotation range of the swing telescopic arm (200) is 20°≤θ≤110°; and when the swing telescopic arm (200) rotates downward, the angle θ approaches a value of 90°.

6. The automatic bridge formwork grinding device according to claim 1 is characterized in that: The front and rear ends of the pulley (101) are provided with outwardly protruding anti-collision structures (110) for buffering collisions of the pulley (101) in the front and rear directions.

7. The automatic bridge formwork grinding device according to claim 1 is characterized in that: The pulley (101) is equipped with a motor (120), the output shaft of the motor (120) is connected to a travel gear (121), and the main beam (100) is provided with a rack extending in the transverse direction of the template and meshing with the travel gear (121).

8. The automatic bridge formwork grinding device according to claim 1 is characterized in that: The main beam (100) is provided with a track, and the pulley (101) is provided with a roller (130) in contact with the upper surface of the track and a guide wheel (140) in contact with the side surface of the track.

9. The automatic bridge formwork grinding device according to claim 1 is characterized in that: The pulley (101) is provided with a dust collection system (900), the dust collection system (900) comprising a dust collection device (910), a dust collection box (920) and a dust collection head, the dust collection head is connected to the dust collection box (920) and is adjacent to the polishing mechanism (400), the dust collection device (910) is connected to the dust collection box (920) to provide negative pressure to the dust collection box (920).

10. The automatic bridge formwork grinding device according to any one of claims 1 to 9, characterized in that: The pulley (101), the swing telescopic arm (200), and the grinding mechanism (400) are provided in two sets, which are respectively used for grinding the two sides of the template in the transverse direction.

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