A box girder form polishing apparatus

Abstract

The application provides a box girder formwork polishing device, and belongs to the technical field of concrete formwork polishing. The device comprises a walking vehicle, the top of the walking vehicle is provided with a first horizontal rod, the two ends of the first horizontal rod are respectively slidably connected with two first sliding frames which are parallel to the inclined direction of a pair of lower side plates of the box girder formwork; a pair of side polishing rollers are respectively installed on the outer sides of the two first sliding frames in parallel; a pair of upper polishing rollers are respectively installed on a pair of second sliding frames in parallel, the pair of second sliding frames are slidably connected with a pair of sliding plates, and the pair of sliding plates are respectively fixed to the top of one side of the two first sliding frames; a pair of vertical polishing rollers are installed on one side of a second horizontal rod, the second horizontal rod is arranged above the walking vehicle in a spaced mode, when the walking vehicle is in the box girder formwork, the two vertical polishing rollers abut against the inner sides of two upper side plates of the box girder formwork; and a lower polishing mechanism is arranged at the front end of the walking vehicle. The polishing device can simultaneously polish multiple plate blocks of the box girder formwork, and effectively improves the polishing efficiency.

Description

Technical Field

[0001] This invention belongs to the field of concrete formwork grinding technology, and is particularly related to a box girder formwork grinding device. Background Technology

[0002] Box girders are widely used concrete beam structures due to their advantages of light weight, high strength, and excellent bending resistance. Box girder manufacturing requires the use of box girder formwork. Box girder formwork generally includes a base plate and a pair of outwardly inclined lower side plates on both sides of the base plate. The top of the lower side plates also has upwardly inclined side flanges on both sides, and a top side plate is vertically mounted on the top of the side flanges. After use, some concrete may adhere to the inside of the box girder formwork. Therefore, after each use, the inside of the formwork must be sanded and coated with oil using grinding equipment before it can be reused. Because box girder formwork is large, manual sanding is time-consuming. Some sanding robots can sand the base plate, lower side plates, side flanges, and top side plates of the box girder formwork in multiple stages, reducing manual labor. However, they can only sand each section sequentially, resulting in relatively low efficiency, and improvements are necessary. Summary of the Invention

[0003] To address the aforementioned deficiencies in the prior art, this application provides a box girder formwork grinding device capable of simultaneously grinding multiple sections of the box girder formwork, effectively improving grinding efficiency.

[0004] To achieve the above objectives, the present invention employs the following techniques: A box girder formwork grinding device, comprising: The traveling vehicle has a first crossbar on its top, and both ends of the crossbar are slidably connected to a first slide frame parallel to the inclination direction of the lower side plate corresponding to the box girder template; the first slide frame is pushed to slide by a first pushing mechanism installed on the first crossbar; A pair of side grinding rollers are mounted parallel to each other on the two first carriages; A pair of grinding rollers are respectively installed in parallel on a pair of second slides that are parallel to the two side wing plates of the box girder template. The second slides are slidably connected to the slide plate, which is fixed to the top of the first slide. The sliding direction of the pair of second slides is parallel to the tilting direction of the two side wing plates of the box girder template. The second slides are pushed and slid by a second pushing mechanism installed on the traveling vehicle. A pair of vertical grinding rollers are installed on one side of a second horizontal bar. The second horizontal bar is spaced above the traveling vehicle. When the traveling vehicle is inside the box girder template, the two vertical grinding rollers abut against the inner sides of the two upper side plates of the box girder template. The lower grinding mechanism, located at the front of the traveling vehicle, is used to grind the bottom plate of the box girder formwork.

[0005] Furthermore, the front end of the top of the traveling vehicle is provided with an inverted U-shaped mounting plate. The lower grinding mechanism includes a lower grinding roller, a fourth motor, and a fixed cover. The lower grinding roller is installed inside the fixed cover, and the fixed cover is fixed inside the mounting plate. The bottom height of the lower grinding roller matches the bottom height of the traveling vehicle's wheels. One end of the lower grinding roller is coaxially connected to a connecting shaft that extends out of one end of the fixed cover. The fourth motor is fixed to the top of the mounting plate. Synchronous pulleys are installed on both the connecting shaft and the output shaft of the fourth motor. The two synchronous pulleys are connected to the same synchronous belt.

[0006] Furthermore, a pair of first mounting brackets are fixedly connected to the bottom of the traveling vehicle. Each of the first mounting brackets is equipped with a transverse grinding roller. The distance between the inward-facing ends of the pair of transverse grinding rollers is less than the length of the lower grinding roller, and the distance between the outward-facing ends of the pair of transverse grinding rollers matches the width of the bottom plate of the box girder template.

[0007] Furthermore, each of the two second carriages is connected to a second mounting bracket on the side away from the slide plate. Each second mounting bracket is equipped with an arc-shaped grinding roller. The circumference of the arc-shaped grinding roller is a concave arc. When the pair of upper grinding rollers move to directly above the two side wing plates of the box girder template, the arc-shaped section at the connection between the lower side plate and the side wing plate of the box girder template abuts against the circumference of the arc-shaped grinding roller on the same side.

[0008] Furthermore, the second pushing mechanism includes a vertical rod and a sliding sleeve slidably connected to the vertical rod. The vertical rods of the two second pushing mechanisms are slidably connected to the same transverse slide rail along the width direction of the traveling vehicle. The transverse slide rail is installed on the traveling vehicle. One side of the vertical rod is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the corresponding first slide. The sliding sleeve is connected to the inward end of the corresponding second slide. When the first slide moves upward to its maximum extent, a pair of upper grinding rollers are directly above the two side flanges of the box girder template.

[0009] Furthermore, a fixed rod is provided between the two vertical rods, the bottom of the fixed rod is connected to the transverse slide rail, the second horizontal rod is fixed to the upper part of the fixed rod, and both vertical rods have through slots at the top. The second horizontal rod passes through the two through slots, and a reinforcing rod is connected to the top of the second horizontal rod through a pair of connecting blocks. The pushing end of the first pushing mechanism is rotatably connected to the first slide on the same side, and the fixed end of the first pushing mechanism is rotatably connected to the top of the first horizontal rod.

[0010] The beneficial effects of this invention are as follows: 1. This grinding equipment can grind multiple sections of box girder formwork simultaneously, effectively improving grinding efficiency; 2. The side grinding roller can slide along the inclined direction of the lower side plate under the drive of the second carriage to grind the upper and lower parts of the lower side plate. The side grinding roller with a height lower than the height of the lower side plate can be used to grind the entire lower side plate. Compared with the grinding roller that matches the height of the lower side plate, it can effectively reduce the vibration of the roller body when rotating due to the excessive length of the side grinding roller, and improve the grinding accuracy. 3. During the upward movement of the first carriage, the second carriage can be moved outward synchronously through the cooperation of the connecting rod, the vertical rod and the sliding sleeve, so as to align the upper grinding roller with the side wing plate. Attached Figure Description

[0011] Figure 1 This is a first-view perspective view of the overall structure of the device in the embodiment of this application.

[0012] Figure 2 This is a second-view perspective structural perspective of the device in the embodiment of this application.

[0013] Figure 3 This is a third-view perspective view of the overall structure of the device in the embodiment of this application.

[0014] Figure 4 for Figure 2 Enlarged view of section A in the middle.

[0015] Figure 5 for Figure 2 Enlarged view of section B in the middle.

[0016] Figure 6 This is a perspective view of the overall structure of the equipment in the box girder template according to an embodiment of this application.

[0017] Figure 7 This is a front view of the device in the box girder template according to an embodiment of this application.

[0018] Figure 8 for Figure 7 Enlarged view of section C.

[0019] Figure 9 for Figure 7 Enlarged view of section D in the middle.

[0020] Reference numerals: Traveling vehicle-1, Lower grinding mechanism-2, Side grinding roller-3, Upper grinding roller-4, Second crossbar-5, Vertical grinding roller-6, Box girder template-7, Transverse slide rail-8, Arc-shaped grinding roller-9, Transverse grinding roller-10, First crossbar-101, Lower grinding roller-201, Fixed cover-202, Mounting plate-203, Fourth motor-204, Synchronous belt-205, Synchronous pulley-206, First motor-301, First carriage-302, First pushing mechanism -303, Slideboard -401, Second Slide -402, Second Motor -403, Reinforcing Rod -501, Connecting Block -502, Third Motor -601, Base Plate -701, Lower Side Plate -702, Side Wing Plate -703, Arc Section -704, Upper Side Plate -705, Vertical Rod -801, Slide Sleeve -802, Connecting Rod -803, Fixing Rod -804, Second Mounting Bracket -901, Sixth Motor -902, Fifth Motor -1001, First Mounting Bracket -1002. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this invention are only some embodiments of the present invention, and not all embodiments.

[0022] This application provides a box girder formwork grinding device, such as... Figures 1-9 As shown, it includes a traveling vehicle 1, a side grinding roller 3, an upper grinding roller 4, a vertical grinding roller 6, and a lower grinding mechanism 2.

[0023] Specifically, the top of the traveling vehicle 1 is provided with a first crossbar 101, and both ends of the first crossbar 101 are slidably connected to first slides 302 parallel to the inclination direction of the lower side plate 702 corresponding to the box girder template 7. The sliding direction of the two first slides 302 is parallel to the inclination direction of the two lower side plates 702 of the box girder template 7, respectively. There is a pair of side grinding rollers 3, which are installed parallel to each other on the outside of the two first slides 302. Specifically, the pair of side grinding rollers 3 are driven to rotate by a pair of first motors 301, and the two first slides 302 are pushed to slide by two first pushing mechanisms 303, respectively. Specifically, the first pushing mechanism 303 can be set parallel to the corresponding first slide 302. The pushing end of the first pushing mechanism 303 is connected to the first slide 302 on the same side, and the fixed end of the first pushing mechanism 303 is connected to the top of a third crossbar, which is fixed to the top of the traveling vehicle 1. Specifically, in this embodiment, a hydraulic cylinder, an electric screw, or a telescopic cylinder is selected as the first pushing mechanism 303. The upper grinding rollers 4 are a pair, which are respectively installed in parallel on a pair of second slides 402 parallel to the two side wing plates 703 of the box girder template 7. Specifically, the pair of upper grinding rollers 4 are connected by a pair of Driven by the second motor 403, a pair of second slides 402 are slidably connected to a pair of slide plates 401. The pair of slide plates 401 are respectively fixed to the top of one side of the two first slides 302. The sliding direction of the pair of second slides 402 is parallel to the inclination direction of the two side wing plates 703 of the box girder template 7. The pair of second slides 402 are pushed and slid by two second pushing mechanisms mounted on the traveling vehicle 1. Specifically, when the traveling vehicle 1 is inside the box girder template 7, the first slides 302 are all moved to the top, and the second slides 402 are all moved outward to the maximum extent, the two upper grinding... The bottom of roller 4 abuts against the two side wing plates 703 of the box girder template 7 respectively. The top height of the pair of side grinding rollers 3 is higher than the lower side plate 702 of the box girder template 7. The vertical grinding rollers 6 are a pair, installed on the same side of the second crossbar 5. The second crossbar 5 is spaced above the traveling vehicle 1. Specifically, the pair of vertical grinding rollers 6 are driven to rotate by a pair of third motors 601. When the traveling vehicle 1 is inside the box girder template 7, the two vertical grinding rollers 6 abut against the inner side of the two upper side plates 705 of the box girder template 7. The lower grinding mechanism 2 is located at the front end of the traveling vehicle 1 and is used to grind the bottom plate 701 of the box girder template 7.

[0024] For details, please refer to Figure 1 , Figure 2The front end of the top of the traveling vehicle 1 is provided with an inverted U-shaped mounting plate 203. The lower grinding mechanism 2 includes a lower grinding roller 201, a fourth motor 204, and a fixed cover 202. The lower grinding roller 201 is installed inside the fixed cover 202, and the fixed cover 202 is fixed inside the mounting plate 203. The lower grinding roller 201 is parallel to the width direction of the traveling vehicle 1, and the bottom height of the lower grinding roller 201 matches the bottom height of the wheels of the traveling vehicle 1. One end of the lower grinding roller 201 is coaxially connected to a connecting shaft that passes through one end of the fixed cover 202. The fourth motor 204 is fixed to the top of the mounting plate 203. Synchronous pulleys 206 are installed on both the connecting shaft and the output shaft of the fourth motor 204. The two synchronous pulleys 206 are connected to the same synchronous belt 205. When grinding is required, the output shaft of the fourth motor 204 is controlled to rotate, which can drive the connecting shaft and the lower grinding roller 201 to rotate through the synchronous pulleys 206 and the synchronous belt 205.

[0025] In actual use, firstly, the two second pushing mechanisms are controlled to move the pair of second slides 402 inward to prevent the second slides 402 from protruding beyond the pair of side grinding rollers 3. At the same time, the pair of first pushing mechanisms 303 are controlled to move the pair of first slides 302 downward to their maximum extent, so that the bottom height of the side grinding rollers 3 matches the bottom height of the wheels of the traveling vehicle 1. Then, the traveling vehicle 1 is controlled to drive into the box girder template 7 and move along the length of the box girder template 7. During this process, the lower grinding mechanism 2 can grind the bottom plate 701 of the box girder template 7, the side grinding rollers 3 can grind the lower part of the lower side plate 702 of the box girder template 7, and the vertical grinding roller 6 can grind the upper side plate 705 of the box girder template 7, grinding multiple plates at the same time. After the traveling vehicle 1 moves forward and detaches from the box girder template 7, it controls a pair of first pushing mechanisms 303 to drive a pair of first slides 302 to move upward to the maximum extent, so that the top height of the side grinding roller 3 is higher than the top height of the lower side plate 702. It also controls two second pushing mechanisms to drive a pair of second slides 402 to move outward, so that the side grinding roller 3 is aligned with the two side wing plates 703 of the box girder template 7. Then, it controls the traveling vehicle 1 to re-enter the box girder template 7, so that the upper part of the lower side plate 702 and the side wing plates 703 can be ground. Because the side grinding roller 3 can slide along the inclined direction of the lower side plate 702 under the drive of the second slide 402, the upper and lower parts of the lower side plate 702 are ground in sequence. The side grinding roller 3 with a height lower than the height of the lower side plate 702 can be used to grind the entire lower side plate 702. Compared with directly using a grinding roller that matches the height of the lower side plate, it can effectively reduce the vibration of the roller body when rotating due to the excessive length of the side grinding roller 3, and improve the grinding accuracy.

[0026] Because the fixed cover 202 and the synchronous belt 205 require reserved installation space to avoid interference between this part of the structure and the lower side plate 702 of the box girder formwork 7 during grinding, the length of the installed lower grinding roller 201 needs to be slightly smaller than the width of the bottom plate 701 of the box girder formwork 7. When the lower grinding roller 201 grinds the bottom plate 701 of the box girder formwork 7, there will be some grinding dead corners. If concrete adheres to these areas, manual grinding is required. In one embodiment, see [reference]. Figure 2 , Figure 4 The bottom of the traveling vehicle 1 is fixedly connected to a pair of first mounting brackets 1002. Each of the first mounting brackets 1002 is equipped with a transverse grinding roller 10. Specifically, the pair of transverse grinding rollers 10 are driven to rotate by two fifth motors 1001. The distance between the inward ends of the pair of transverse grinding rollers 10 is less than the length of the lower grinding roller 201. The distance between the outward ends of the pair of transverse grinding rollers 10 matches the width of the bottom plate 701 of the box girder template 7. Specifically, when the traveling vehicle 1 is inside the box girder template 7, the outward ends of the pair of transverse grinding rollers 10 are aligned with the two sides of the bottom plate 701 of the box girder template 7. During the grinding process, controlling the rotation of the pair of transverse grinding rollers 10 can grind the grinding dead corners that the lower grinding roller 201 cannot grind.

[0027] The connection between the lower side plate 702 and the side flange plate 703 of some box girder formwork 7 is an arc-shaped segment 704. The upper grinding roller 4 cannot grind the arc-shaped segment 704 of this type of box girder formwork 7. In one embodiment, see [reference]. Figure 2 , Figure 5 , Figure 8 Each pair of second slides 402 is connected to a second mounting bracket 901 on the side away from the slide plate 401. Each second mounting bracket 901 is equipped with an arc-shaped grinding roller 9. Specifically, the pair of arc-shaped grinding rollers 9 are driven to rotate by a pair of sixth motors 902. The circumference of the arc-shaped grinding roller 9 is a concave arc. When the pair of upper grinding rollers 4 move directly above the two side wing plates 703 of the box girder template 7, the arc-shaped section 704 at the connection between the lower side plate 702 and the side wing plate 703 of the box girder template 7 abuts against the circumference of the arc-shaped grinding roller 9 on the same side. By controlling the sixth motor 902 to drive the arc-shaped grinding roller 9 to rotate, the arc-shaped section 704 can be ground.

[0028] Preferred options, please refer to Figure 3Both second pushing mechanisms include a vertical rod 801 and a sliding sleeve 802 slidably connected to the vertical rod 801. Both vertical rods 801 are slidably connected to the same transverse slide rail 8 along the width direction of the traveling vehicle 1. The transverse slide rail 8 is installed on the traveling vehicle 1. One side of each of the two vertical rods 801 is rotatably connected to one end of each of the two connecting rods 803. The other end of each of the two connecting rods 803 is rotatably connected to one side of each of the first slides 302. Each pair of sliding sleeves 802 is connected to the inward end of each of the second slides 402. When the first slides 302 move upward to the maximum extent, the pair of upper grinding rollers 4 are directly above the two side flanges 703 of the box girder template 7. When the first slides 302 move downward to the maximum extent, the pair of second slides 402 move inward to the inside of the pair of side grinding rollers 3, realizing the synchronous movement of the first slides 302 and the second slides 402 without the need for an additional power source to control the sliding of the second slides 402.

[0029] For further optimization, please refer to Figure 3 A fixed rod 804 is provided between the two vertical rods 801. The bottom of the fixed rod 804 is connected to the transverse slide rail 8. The second horizontal rod 5 is fixed to the upper part of the fixed rod 804, and both vertical rods 801 have through slots at their upper parts. The second horizontal rod 5 passes through both through slots. During the sliding process of the vertical rods 801, the second horizontal rod 5 can guide the vertical rods 801, improving the stability of the vertical rods 801 during the sliding process. At the same time, the vertical rods 801 can support the second horizontal rod 5, improving the stability of the second horizontal rod 5 during the movement process. For details, please refer to [link / reference]. Figure 3 The top of the second crossbar 5 is connected to a reinforcing rod 501 via a pair of connecting blocks 502. With this arrangement, the overall structural strength of the two can be effectively improved after the reinforcing rod 501 is connected to the second crossbar 5, thus preventing the second crossbar 5 from bending.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to be the only or limiting of the invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from its scope are all within the protection scope of the present invention.

Claims

1. A box girder formwork grinding device, characterized in that, include: The traveling vehicle (1) has a first crossbar (101) on its top, and both ends of the crossbar are slidably connected to a first slide (302) parallel to the inclined direction of the lower side plate (702) on the side corresponding to the box girder template (7); the first slide (302) is pushed and slid by a first pushing mechanism (303) installed on the first crossbar (101); A pair of side grinding rollers (3) are mounted in parallel on two first carriages (302); A pair of grinding rollers (4) are respectively installed in parallel on a pair of second slides (402) that are parallel to the two side wing plates (703) of the box girder template (7). The second slides (402) are slidably connected to the slide plate (401). The slide plate (401) is fixed to the top of the first slide (302). The sliding direction of the pair of second slides (402) is parallel to the tilting direction of the two side wing plates (703) of the box girder template (7). The second slides (402) are pushed and slid by a second pushing mechanism installed on the traveling vehicle (1). A pair of vertical grinding rollers (6) are installed on one side of a second crossbar (5). The second crossbar (5) is spaced above the traveling vehicle (1). When the traveling vehicle (1) is inside the box girder template (7), the two vertical grinding rollers (6) abut against the inner sides of the two upper side plates (705) of the box girder template (7). The lower grinding mechanism (2) is located at the front end of the traveling vehicle (1) and is used to grind the bottom plate (701) of the box girder template (7).

2. The box girder formwork grinding equipment according to claim 1, characterized in that, The front end of the top of the traveling vehicle (1) is provided with an inverted U-shaped mounting plate (203). The lower grinding mechanism (2) includes a lower grinding roller (201), a fourth motor (204), and a fixed cover (202). The lower grinding roller (201) is installed inside the fixed cover (202), and the fixed cover (202) is fixed inside the mounting plate (203). The bottom height of the lower grinding roller (201) matches the bottom height of the wheels of the traveling vehicle (1). One end of the lower grinding roller (201) is coaxially connected to a connecting shaft that passes through one end of the fixed cover (202). The fourth motor (204) is fixed to the top of the mounting plate (203). Synchronous pulleys (206) are installed on both the connecting shaft and the output shaft of the fourth motor (204). The two synchronous pulleys (206) are connected to the same synchronous belt (205).

3. The box girder formwork grinding equipment according to claim 2, characterized in that, The bottom of the traveling vehicle (1) is fixedly connected to a pair of first mounting brackets (1002). Each of the first mounting brackets (1002) is equipped with a transverse grinding roller (10). The distance between the inward ends of the pair of transverse grinding rollers (10) is less than the length of the lower grinding roller (201). The distance between the outward ends of the pair of transverse grinding rollers (10) matches the width of the bottom plate (701) of the box girder template (7).

4. The box girder formwork grinding equipment according to claim 1, characterized in that, A pair of second slides (402) are connected to a second mounting bracket (901) on the side away from the slide plate (401). A curved grinding roller (9) is installed in the second mounting bracket (901). The circumference of the curved grinding roller (9) is a concave arc. When a pair of upper grinding rollers (4) move to the top of the two side wing plates (703) of the box girder template (7), the arc section (704) at the connection between the lower side plate (702) and the side wing plate (703) of the box girder template (7) abuts against the circumference of the curved grinding roller (9) on the same side.

5. The box girder formwork grinding equipment according to claim 1, characterized in that, The second pushing mechanism includes a vertical rod (801) and a sliding sleeve (802) slidably connected to the vertical rod (801). The vertical rods (801) of the two second pushing mechanisms are slidably connected to the same transverse slide rail (8) along the width direction of the traveling vehicle (1). The transverse slide rail (8) is installed on the traveling vehicle (1). One side of the vertical rod (801) is rotatably connected to one end of the connecting rod (803), and the other end of the connecting rod (803) is rotatably connected to the corresponding first slide (302). The sliding sleeve (802) is connected to the inward end of the corresponding second slide (402). When the first slide (302) moves upward to the maximum extent, a pair of upper grinding rollers (4) are directly above the two side wing plates (703) of the box girder template (7).

6. The box girder formwork grinding equipment according to claim 5, characterized in that, A fixed rod (804) is provided between the two vertical rods (801). The bottom of the fixed rod (804) is connected to the horizontal slide rail (8). The second horizontal rod (5) is fixed to the upper part of the fixed rod (804). Both vertical rods (801) have through slots on their upper parts. The second horizontal rod (5) passes through the two through slots.

7. The box girder formwork grinding equipment according to claim 6, characterized in that, The top of the second crossbar (5) is connected to a reinforcing bar (501) by a pair of connecting blocks (502).

8. The box girder formwork grinding equipment according to claim 1, characterized in that, The pushing end of the first pushing mechanism (303) is rotatably connected to the first slide (302) on the same side, and the fixed end of the first pushing mechanism (303) is rotatably connected to the top of the first crossbar (101).

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