Steel plate flat welding seam rust removal trolley

Abstract

The utility model relates to a steel plate flat welding seam rust removal trolley, which belongs to the field of welding seam pretreatment, and comprises a trolley main body, a sliding plate, a polishing wheel and a motor, the sliding plate is slidably connected into a sliding plate guide hole of the trolley body, the height position of the sliding plate can be locked through a positioning structure, the motor is installed on one side of the bottom end of the sliding plate, and an output shaft of the motor extends out of a receding hole of the sliding plate and is provided with the grinding wheel. And the bottom end of the polishing wheel is in contact with the surface of the welding seam groove of the steel plate. In the walking process of the trolley, abutted seams of steel plates are polished and derusted, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of weld pre-treatment, in particular to a trolley for removing rust from flat welds of steel plates. Background Art

[0002] The applicant has been engaged in the production and manufacturing of heavy steel structures for a long time, mainly steel structures for bridges, and has also been engaged in related engineering construction, such as the manufacture of large steel box girder bridges, steel tube arch bridges, etc. In the steel structure bridge section of the steel box girder bridge, whether it is the bridge deck, side plate or supporting partition, the span is often large, and medium and thick plates need to be used for welding and butt jointing. For the flat butt jointing of steel plates, it is often necessary to open a groove at the joint, and then use a submerged arc welding machine for welding. In order to improve production efficiency, the applicant separated the groove opening station and the welding station, and the steel plates with grooves often need to be placed for a period of time and transferred in batches to the welding station for welding. During the placement and turnover process, floating rust sometimes occurs at the position where the groove is opened, especially in summer. This situation is more common. Rust removal and polishing are required before welding to avoid welding defects.

[0003] At present, after two steel plates to be welded together are arranged, they are first manually spot welded and positioned, and a hand-held angle grinder is required to drive a wire brush wheel to remove rust from the V-shaped groove. This is labor-intensive and time-consuming.

[0004] Therefore, it is necessary to develop a trolley for removing rust from flat welds of steel plates to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model aims to provide a trolley for removing rust from the flat weld of a steel plate. The trolley can grind and remove rust from the joint of the steel plate during its movement, thereby reducing the intensity of manual labor.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The utility model discloses a trolley for removing rust from flat welds of steel plates, comprising a trolley main body, a slide plate, a grinding wheel and a motor. The trolley main body can walk across the seams of spliced ​​steel plates through four bottom wheels, the slide plate is slidably connected in a slide plate guide hole of the trolley main body and its height can be locked by a positioning structure, the motor is installed on one side of the bottom end of the slide plate, the output shaft of the motor protrudes out of the clearance hole of the slide plate and the grinding wheel is installed; the bottom end of the grinding wheel contacts the groove surface of the welding seam of the steel plate.

[0008] Furthermore, it also includes a linear guide rail and a slider, wherein the linear guide rail is vertically arranged on the side wall of the slide plate, the slider is fixedly connected to the periphery of the guide hole of the slide plate, and the linear guide rail is slidably connected in the slider.

[0009] Furthermore, the number of the linear guide rails and the sliding blocks is four, and one set of the linear guide rails and the sliding blocks is distributed at both ends of the two side walls of the sliding plate.

[0010] Furthermore, the positioning structure includes a top screw and a top screw mounting block. The two top screw mounting blocks are respectively fixedly connected at their roots to the outside of the long sides of the guide holes of the skateboard. The top screw is threadedly connected to the threaded hole on the upper part of the top screw mounting block. The top screw end can be pressed against the side wall of the skateboard.

[0011] Furthermore, the upper and lower ends of the cross section of the grinding wheel are V-shaped to adapt to the cross section of the welding seam groove.

[0012] Furthermore, a grinding position mark is provided at the front end of the main body plate of the trolley and a handle is provided at the rear end for the operator to push, and the arrow position of the grinding position mark coincides with the center plane of the grinding wheel.

[0013] Furthermore, it also includes a panel, the horizontal cross-section of which is a U-shape with an opening toward the grinding wheel, and the top surface of the panel is fixedly connected to the bottom surface of the main body panel of the trolley.

[0014] Furthermore, it also includes a plug-in tube, an elbow tube, a dust removal tube, a cloth bag and an exhaust fan. A dust removal through hole is opened on the rear part of the main body plate of the trolley. The plug-in tube is plugged into the dust removal through hole and the bottom end is connected to the top of the enclosure. The bottom end of the elbow tube is connected to the plug-in tube, and the top end of the elbow tube is connected to the dust removal tube. The cloth bag is arranged in the dust removal tube and filters dust for ventilation. The exhaust fan is connected to the outer end of the dust removal tube.

[0015] Compared with the prior art, the beneficial technical effects of the utility model are:

[0016] The utility model relates to a trolley for removing rust from a flat weld of a steel plate. By using a walking trolley body to carry a grinding wheel and a motor to perform grinding and rust removal along the weld groove while walking, compared with manual grinding, the labor intensity is reduced, and the work efficiency and work quality are improved. By arranging a sliding plate that can be raised and lowered in the sliding plate guide hole of the trolley body, the height of the grinding wheel can be adjusted up and down, which is convenient for adaptive adjustment according to the depth of the weld groove, better meeting the requirements of grinding and rust removal, and avoiding dead corners that cannot be thoroughly cleaned. By using a flat steel wire grinding wheel as the grinding wheel, the edge of the flexibly deformed wire brush can adaptively deform the weld groove. The utility model trolley for removing rust from a flat weld of a steel plate grinds and removes rust from the joints of the steel plate during the movement of the trolley, thereby reducing the labor intensity of manual labor.

[0017] In addition, by setting the linear guide rail and the slider between the guide hole and the slide, the guiding stability of the slide can be improved, and the slide can be prevented from being deflected during the operation of the grinding wheel. By using a two-way top screw structure to lock the height of the slide, convenient and quick effective locking can be achieved to avoid looseness. By setting the edge position of the grinding wheel to be V-shaped, that is, trimming the wire bundle at the edge of the flat wire wheel to adapt to the V-shaped groove, better grinding and rust removal can be performed; by setting the grinding position mark, the operator can push the handle in the correct direction, and the V-shaped edge of the grinding wheel can also automatically maintain the forward direction. By setting the enclosure, the sparks of the high-speed rotation of the grinding wheel can be blocked to avoid the tail swinging too long backwards, which will cause harm to the operator pushing the main body of the trolley. By adding a dust removal pipe, a cloth bag and an exhaust fan for exhaust dust removal, the structure is compact, and dust is collected while walking. The sparks and dust from grinding and rust removal can be collected in a centralized manner to avoid spreading to the workshop to form dust pollution and deteriorate the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model of a trolley for removing rust from a flat weld of a steel plate;

[0020] Figure 2 This is a left-side structural schematic diagram of the utility model of a trolley for removing rust from a flat weld of a steel plate;

[0021] Figure 3 This is a top view structural schematic diagram of the utility model of a trolley for removing rust from a flat weld of a steel plate;

[0022] Figure 4 for Figure 3 A schematic diagram of the partial enlarged structure of the middle I part;

[0023] Figure 5 It is a schematic diagram of the main cross-sectional structure of the dust removal mechanism of the utility model.

[0024] Explanation of the accompanying reference numerals: 1. Trolley body; 101. Bottom wheel; 102. Handle; 103. Guide hole of skateboard; 104. Dust removal hole; 105. Grinding position mark; 2. Skateboard; 201. Handle hole; 3. Grinding wheel; 4. Motor; 5. Linear guide rail; 6. Slider; 7. Top screw; 8. Top screw mounting block; 9. Enclosure; 10. Plug-in tube; 11. Elbow tube; 12. Dust removal tube; 13. Cloth bag; 14. Exhaust fan. DETAILED DESCRIPTION

[0025] The core of the utility model is to provide a trolley for removing rust from the flat weld of a steel plate. The trolley can grind and remove rust from the joints of the steel plate during its movement, thereby reducing the intensity of manual labor.

[0026] 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 in 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.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] With reference to the accompanying drawings, Figure 1 This is a schematic diagram of the main structure of the utility model of a trolley for removing rust from a flat weld of a steel plate; Figure 2 This is a left-side structural schematic diagram of the utility model of a trolley for removing rust from a flat weld of a steel plate; Figure 3 It is a top view structural schematic diagram of the utility model of a trolley for removing rust from a flat weld of a steel plate; Figure 4 for Figure 3 A schematic diagram of the partial enlarged structure of the middle I part; Figure 5 It is a schematic diagram of the main cross-sectional structure of the dust removal mechanism of the utility model.

[0029] In a specific embodiment, Figures 1 to 5 As shown, the utility model of the trolley for removing rust from the flat weld of steel plate comprises a trolley body 1, a slide plate 2, a grinding wheel 3 and a motor 4. The trolley body 1 has a horizontally arranged car plate, which is a rectangular plate and has bottom wheels 101 at the four corners of the bottom. The trolley body 1 can walk across the seams of the spliced ​​steel plates through the four bottom wheels 101. A slide plate guide hole 103 is provided in the middle part of the car plate. The slide plate 2 is slidably connected in the slide plate guide hole 103 and can be locked in its high and low position by a positioning structure. The motor 4 is installed on one side of the bottom end of the slide plate 2, and the output shaft of the motor 4 protrudes out of the clearance hole of the slide plate 2 and is installed with the grinding wheel 3. That is, the motor 4 drives the grinding wheel 3 to rotate. The bottom end of the grinding wheel 3 contacts the surface of the weld groove of the steel plate, that is, the bottom edge of the grinding wheel 3 is lower than the bottom edge of the slide plate 2, and can first contact the weld groove.

[0030] Specifically, the grinding wheel 3 is a flat steel wire grinding wheel, and the steel wire at the edge of the grinding wheel 3 is deformed and contacts the surface of the weld groove to scrape the surface to remove loose rust.

[0031] By using a walking trolley body 1 carrying a grinding wheel 3 and a motor 4 to perform grinding and rust removal while walking along the weld groove, the labor intensity is reduced, and the work efficiency and work quality are improved compared to manual grinding. By setting a sliding plate 2 that can be raised and lowered in the sliding plate guide hole 103 of the trolley body 1, the height of the grinding wheel 3 can be adjusted up and down, which is convenient for adaptive adjustment according to the depth of the weld groove, better meeting the requirements of grinding and rust removal, and avoiding dead corners that cannot be thoroughly cleaned. By using a flat steel wire grinding wheel for the grinding wheel 3, the edge of the flexibly deformed wire brush can adaptively deform the weld groove. The utility model of the trolley for rust removal of flat welds of steel plates can grind and rust the joints of the steel plates during the movement of the trolley, thereby reducing the labor intensity of manual labor.

[0032] In a specific embodiment of the present invention, Figures 1 to 4 As shown, the utility model steel plate flat weld rust removal trolley also includes a linear guide rail 5 and a slider 6. The linear guide rail 5 is vertically arranged on the side wall of the slide plate 2. The root of the slider 6 is fixedly connected to the periphery of the slide plate guide hole 103. The edge of the corresponding slide plate guide hole 103 is also provided with a clearance hole for the linear guide rail 5 at the installation position of the slider 6. The linear guide rail 5 is slidably connected in the slider 6.

[0033] Specifically, if Figures 1 to 4 As shown, there are four sets of linear guide rails 5 and sliders 6 , and one set of linear guide rails 5 and sliders 6 is distributed at both ends of the two side walls of the slide plate 2 .

[0034] By arranging the linear guide rail 5 and the slider 6 between the slide guide hole 103 and the slide 2 , the guiding stability of the slide 2 can be improved, and the slide 2 can be prevented from being tilted during the operation of the grinding wheel 3 .

[0035] In a specific embodiment of the present invention, Figures 1 to 4 As shown, the positioning structure includes a top screw 7 and a top screw mounting block 8. The two top screw mounting blocks 8 are respectively welded at their roots on the top surface of the vehicle plate of the trolley body 1. The top screw mounting block 8 is located outside the long side of the slide plate guide hole 103, and the top screw 7 is threadedly connected to the threaded hole on the upper part of the top screw mounting block 8, and the end of the top screw 7 can be pressed against the side wall of the slide plate 2.

[0036] Obviously, the positioning structure between the vehicle body 1 and the skateboard 2 may also adopt other positioning structures, such as a pin and a positioning hole, that is, a plurality of pin holes are opened along the height direction on the side wall of the skateboard 2, and the pin is arranged on the vehicle body 1. The pin can be moved forward and inserted into the pin hole on the side wall of the skateboard 2 to lock the height position of the skateboard 2.

[0037] By adopting a bidirectional top screw structure to lock the height of the slide plate 2, convenient and quick effective locking can be achieved to avoid looseness.

[0038] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, the cross section of the grinding wheel 3 is V-shaped at both ends to match the cross section of the weld groove. In actual production, the weld between the butted steel plates is often V-shaped, which matches the cross-sectional shape of the grinding wheel 3.

[0039] Specifically, if Figures 1 to 3 As shown, a grinding position mark 105 is provided at the front end of the vehicle plate of the trolley body 1 and a handle 102 is provided at the rear end for the operator to push. The arrow position of the grinding position mark 105 coincides with the center plane of the grinding wheel 3.

[0040] By setting the edge position of the grinding wheel 3 to be V-shaped, that is, trimming the wire bundle at the edge of the flat wire wheel to adapt to the V-shaped groove, better grinding and rust removal can be performed; by setting the grinding position mark 105, the operator can push the handle 102 in the correct direction, and the V-shaped edge of the grinding wheel 3 can also automatically maintain the forward direction.

[0041] In a specific embodiment of the present invention, Figure 1 , Figure 2 and Figure 5 As shown, the utility model steel plate flat weld rust removal trolley also includes a panel 9, the horizontal cross section of the panel 9 is a U-shape with an opening toward the grinding wheel 3, and the top surface of the panel 9 is welded to the bottom surface of the vehicle plate of the trolley body 1. The bottom edge of the panel 9 is higher than the bottom edge of the bottom wheel 101 to avoid interference during walking.

[0042] By setting the enclosure plate 9, sparks generated by high-speed rotating grinding of the grinding wheel 3 can be blocked to prevent the tail from swinging too far backwards and causing harm to the operator pushing the trolley body 1.

[0043] Specifically, if Figures 1 to 3 and Figure 5As shown, the utility model trolley for removing rust from flat welds of steel plates also includes a plug-in pipe 10, an elbow pipe 11, a dust removal pipe 12, a cloth bag 13 and an exhaust fan 14. A dust removal through hole 104 is provided at the rear of the vehicle body 1 of the trolley. The plug-in pipe 10 is plugged into the dust removal through hole 104 and the bottom end is connected to the top of the enclosure 9. The bottom end of the elbow pipe 11 is connected to the plug-in pipe 10. The top end of the elbow pipe 11 is connected to the dust removal pipe 12. The cloth bag 13 is arranged in the dust removal pipe 12 and filters the dust for ventilation. The exhaust fan 14 is connected to the outer end of the dust removal pipe 12. The exhaust fan 14 adopts the form of an axial flow fan for negative pressure exhaust.

[0044] By adding the dust removal pipe 12, the cloth bag 13 and the induced draft fan 14 for exhaust dust removal, the structure is compact, and the dust can be collected while walking. The spark dust from grinding and rust removal can be collected in a centralized manner to avoid spreading to the workshop to form dust pollution and deteriorate the working environment.

[0045] The working principle of the utility model of the trolley for removing rust from the flat weld of steel plate: after the two steel plates are joined together, the spot welding positioning is initially performed to avoid displacement during the grinding and rust removal process. According to the size of the weld groove, a grinding wheel 3 of suitable thickness is selected and installed on the output shaft of the motor 4. The trolley is moved as a whole to one end of the linear weld groove, and the overall position of the trolley is adjusted so that the bottom edge of the grinding wheel 3 is aligned with the V-shaped weld groove. The two top screws 7 are loosened so that the slide plate 2 slides downward under its own weight, and the grinding wheel 3 is pressed into the weld groove. The two top screws 7 are tightened so that the slide plate 2 is locked in the height direction. The starting position usually needs to be padded with a wooden board so that the four bottom wheels 101 are on the same horizontal plane as much as possible. The working panel button of the electric control box is operated to start the motor 4, and the motor 4 drives the grinding wheel 3 to rotate at high speed to perform grinding and rust removal. At the same time, the exhaust fan 14 is turned on to form a vacuum pressure on the inner side of the enclosure 9, so that the sparks and dust from grinding and rust removal can be collected in a centralized manner. The operator holds the handle 102 and pushes the trolley, and at the same time observes that the arrow position of the grinding position mark 105 is aligned with the front welding seam groove, and walks from one end to the other end to complete the grinding and rust removal operation of the entire welding seam groove.

[0046] In summary, the utility model of the trolley for removing rust from the flat weld of the steel plate, by using the trolley body 1 that can walk to carry the grinding wheel 3 and the motor 4 to carry out grinding and rust removal while walking along the weld groove, reduces the labor intensity and improves the work efficiency and work quality compared with manual grinding. By setting the slide plate 2 that can be lifted and lowered in the slide plate guide hole 103 of the trolley body 1, the height of the grinding wheel 3 can be adjusted up and down, which is convenient for adaptive adjustment according to the depth of the weld groove, better meets the requirements of grinding and rust removal, and avoids the dead corner that cannot be thoroughly cleaned. By using a flat steel wire grinding wheel 3, the edge of the flexible deformed wire brush can adaptively deform the weld groove. The utility model of the trolley for removing rust from the flat weld of the steel plate, grinds and rusts the joints of the steel plate during the walking process of the trolley, and reduces the labor intensity of manual labor. In addition, by setting the linear guide 5 and the slider 6 between the slide plate guide hole 103 and the slide plate 2, the guiding stability of the slide plate 2 can be improved, and the deflection of the slide plate 2 during the working process of the grinding wheel 3 can be avoided. By adopting a two-way top screw structure to lock the high and low positions of the slide plate 2, it is possible to achieve convenient and quick effective locking to avoid looseness. By setting the edge position of the grinding wheel 3 to be V-shaped, that is, trimming the wire bundle at the edge of the flat wire wheel to adapt it to the V-shaped groove, it is possible to better perform grinding and rust removal; by setting the grinding position mark 105, the operator can push the handle 102 in the correct direction, and the V-shaped edge of the grinding wheel 3 can also automatically maintain the forward direction. By setting the enclosure 9, the sparks of the high-speed rotation grinding of the grinding wheel 3 can be blocked to avoid the tail swinging too long backwards and causing harm to the operator pushing the trolley body 1. By adding a dust removal pipe 12, a cloth bag 13 and an exhaust fan 14 for exhaust dust removal, the structure is compact, and dust can be collected while walking. The sparks and dust from grinding and rust removal can be collected in a centralized manner to avoid spreading to the workshop to form dust pollution and deteriorate the working environment.

[0047] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0048] It should be noted that all components in the technical solution of this application require the necessary additional facilities of water supply, oil supply, electricity supply and gas supply to be driven and / or controlled. If there is no further explanation, it is assumed that the existing technology is used and equipped without special explanation.

[0049] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A trolley for removing rust from flat welds of steel plates, characterized in that: The invention comprises a trolley body (1), a slide plate (2), a grinding wheel (3) and a motor (4); the trolley body (1) can walk across the seam of the spliced ​​steel plates through four bottom wheels (101); the slide plate (2) is slidably connected to the slide plate guide hole (103) of the trolley body (1) and can lock its height position through a positioning structure; the motor (4) is installed on one side of the bottom end of the slide plate (2); the output shaft of the motor (4) protrudes out of the clearance hole of the slide plate (2) and is installed with the grinding wheel (3); the bottom end of the grinding wheel (3) contacts the groove surface of the welding seam of the steel plate.

2. The trolley for removing rust from flat welds of steel plates according to claim 1 is characterized in that: It also includes a linear guide rail (5) and a slider (6), wherein the linear guide rail (5) is vertically arranged on the side wall of the slide plate (2), the slider (6) is fixedly connected to the periphery of the slide plate guide hole (103), and the linear guide rail (5) is slidably connected in the slider (6).

3. The trolley for removing rust from flat welds of steel plates according to claim 2 is characterized in that: The number of the linear guide rails (5) and the sliding blocks (6) is four sets, and one set of the linear guide rails (5) and the sliding blocks (6) is distributed at both ends of the two side walls of the slide plate (2).

4. The trolley for removing rust from flat welds of steel plates according to claim 3 is characterized in that: The positioning structure comprises a top screw (7) and a top screw mounting block (8); the two top screw mounting blocks (8) are respectively fixedly connected at their roots to the outside of the long sides of the guide holes (103) of the slide plate; the top screw (7) is threadedly connected to the threaded hole at the top of the top screw mounting block (8); and the end of the top screw (7) can be pressed tightly against the side wall of the slide plate (2).

5. The trolley for removing rust from flat welds of steel plates according to claim 1 is characterized in that: The cross section of the grinding wheel (3) is V-shaped at the upper and lower ends, which is adapted to the cross section of the welding seam groove.

6. The trolley for removing rust from flat welds of steel plates according to claim 5 is characterized in that: The front end of the vehicle body (1) is provided with a grinding position mark (105) and the rear end is provided with a handle (102) for easy pushing by an operator, and the arrow position of the grinding position mark (105) coincides with the center plane of the grinding wheel (3).

7. The trolley for removing rust from flat welds of steel plates according to claim 1 is characterized in that: It also includes a panel (9), the horizontal cross section of which is a U-shape with its opening facing the grinding wheel (3), and the top surface of the panel (9) is fixedly connected to the bottom surface of the vehicle plate of the trolley body (1).

8. The trolley for removing rust from flat welds of steel plates according to claim 7 is characterized in that: It also includes a plug-in tube (10), an elbow tube (11), a dust removal tube (12), a cloth bag (13) and an exhaust fan (14); a dust removal through hole (104) is provided at the rear of the vehicle body (1); the plug-in tube (10) is plugged into the dust removal through hole (104) and its bottom end is connected to the top of the enclosure (9); the bottom end of the elbow tube (11) is connected to the plug-in tube (10); the top end of the elbow tube (11) is connected to the dust removal tube (12); the cloth bag (13) is arranged in the dust removal tube (12) and filters dust for ventilation; the exhaust fan (14) is connected to the outer end of the dust removal tube (12).

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