Full-section box girder internal mold grinding machine

Abstract

The utility model relates to the technical field of bridge construction, in particular to a full-section box girder internal mold grinding machine. Comprising a door opening type frame, wheels are installed at the bottom of the door opening type frame, and the wheels are used for driving the door opening type frame to linearly move in the opening direction of the door opening type frame; a top surface template front polishing roller, a top surface template side polishing roller, a side surface template middle polishing roller, a side surface template upper polishing roller and a side surface template lower polishing roller are mounted in the opening of the door opening type frame; orthographic projections of the top surface template front grinding roller, the top surface template side grinding roller, the side surface template middle grinding roller, the side surface template upper grinding roller and the side surface template lower grinding roller define a cross section outline of the box girder inner mold; the postures of the top surface template front grinding roller, the top surface template side grinding roller, the side surface template middle grinding roller, the side surface template upper grinding roller and the side surface template lower grinding roller can be automatically adjusted along with the change of the cross section of the inner mold; the door opening type frame spans the box girder inner mold and moves along the full length of the box girder inner mold, so that all positions of the box girder inner mold can be polished.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a full-section box beam inner mold grinding machine. Background Art

[0002] When prefabricating box girders, inner and outer molds need to be used together to form a cavity for pouring concrete, and then concrete is poured to form a prefabricated box girder; after pouring a box girder, there will be concrete residue on the contact surface between the inner and outer molds and the concrete. Before pouring the next box girder, the inner and outer molds need to be polished and then coated with a release agent. Figure 1 , Figure 2 , Figure 3 As shown, the inner mold is divided into a standard section mold, an end section mold and a variable section mold; currently some practices are to make a grinding bracket with a similar shape and a size larger than the inner mold, and install a grinding roller on the grinding bracket. This can only grind the inner mold of the same size. For example, when the grinding bracket adapted to the standard section mold is moved to the position of the variable section mold and the end section mold, the grinding roller cannot touch the mold; and the size of the variable section mold is gradually reduced, and it is difficult to effectively grind each section of the variable section mold using a fixed structure grinding bracket. Utility Model Content

[0003] The utility model aims to solve the problem that the current full-section box beam inner mold grinding machine cannot grind the entire length range of the box beam inner mold at one time.

[0004] The utility model provides the following technical solutions: a full-section box beam inner mold grinding machine, comprising a door-hole type frame, a wheel is installed at the bottom of the door-hole type frame, and the wheel is used to drive the door-hole type frame to move linearly along the direction of its hole;

[0005] A top template positive grinding roller, a top template side grinding roller, a side template middle grinding roller, a side template upper grinding roller, and a side template lower grinding roller are installed in the opening of the door opening type frame;

[0006] The top template positive grinding roller, the top template side grinding roller, the side template middle grinding roller, the side template upper grinding roller, and the side template lower grinding roller are staggered front and back along the length direction of the door opening type frame;

[0007] The orthographic projections of the top template positive grinding roller, the top template side grinding roller, the side template middle grinding roller, the side template upper grinding roller, and the side template lower grinding roller form the cross-sectional profile of the box beam inner mold, and the orthographic projection direction is the opening direction of the door-type frame;

[0008] The positive grinding roller of the top template, the side grinding roller of the top template, the middle grinding roller of the side template, the upper grinding roller of the side template and the lower grinding roller of the side template can be extended and retracted forward and backward and move with the cross-section changes of the box beam inner mold.

[0009] Further, the top surface template positive grinding roller includes a first grinding roller bracket, a first grinding roller, a first positioning roller, a first roller bracket, a first telescopic guide rod, a first spring and a first grinding motor;

[0010] The first grinding roller is installed on the first grinding roller bracket, and a first roller bracket is installed in front and behind the first grinding roller bracket, and a first positioning roller is installed on the first roller bracket. The first positioning rollers in front and behind the first grinding roller are flush, and the circumference of the first grinding roller is convex relative to the first positioning rollers in front and behind. One end of the first telescopic guide rod is fixedly connected to the door opening type frame, and the other end is hinged to the hinged ear on the top of the first grinding roller bracket. The first spring is sleeved on the first telescopic guide rod, and the first spring is supported between the inner tube and the outer tube of the first telescopic guide rod; the first grinding motor is installed on the top of the first grinding roller bracket, and the first grinding motor drives the first grinding roller through the transmission mechanism located on the side of the first grinding roller bracket.

[0011] Further, the top surface template side grinding roller includes a second grinding roller bracket, a second grinding roller, a second positioning roller, a second roller bracket, a second telescopic guide rod, a second spring and a second grinding motor;

[0012] The second grinding roller is installed on the second grinding roller bracket, and a second roller bracket is installed in front and behind the second grinding roller bracket respectively, and a second positioning roller is installed on the second roller bracket, and the second positioning rollers in front and behind the second grinding roller are flush, and the circumference of the second grinding roller is convex relative to the second positioning rollers in front and behind. One end of the two second telescopic guide rods is fixedly connected to the door opening type frame, and the other ends are respectively connected to the first ball joint and the second ball joint, the first ball joint is fixed to the second grinding roller bracket, and the second ball joint is slidably connected to the second grinding roller bracket, and the sliding direction of the second ball joint is parallel to the axis of the second grinding roller; the second spring is sleeved on the second telescopic guide rod, and the second spring is supported between the inner tube and the outer tube of the second telescopic guide rod; the second grinding motor is installed on the side of the second grinding roller bracket, and the second grinding motor is connected to the second grinding roller.

[0013] Furthermore, a slider is connected to the second ball joint, a guide rail is fixed to the top of the second grinding roller bracket, the guide rail is parallel to the axis of the second grinding roller, and the slider is slidably matched with the guide rail.

[0014] Furthermore, the grinding roller in the side template, the grinding roller on the side template, the grinding roller on the lower side template and the grinding roller on the top template have the same structure.

[0015] Furthermore, the transmission mechanism between the first grinding motor and the first grinding roller is a chain sprocket.

[0016] Furthermore, the portal-type vehicle frame includes four column legs, and wheels are installed at the bottom of the four column legs, two wheels are driving wheels driven by a reduction motor, and two wheels are driven wheels.

[0017] Furthermore, the positive grinding roller of the top template, the side grinding roller of the top template, the middle grinding roller of the side template, and the upper grinding roller of the side template are arranged in sequence from front to back, and the lower grinding roller of the side template and the upper grinding roller of the side template are aligned front to back.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] The positive grinding roller of the top template, the side grinding roller of the top template, the middle grinding roller of the side template, the upper grinding roller of the side template and the lower grinding roller of the side template can automatically adjust their postures as the cross-section of the inner mold changes; the portal type frame crosses the box girder inner mold and can complete the grinding of various positions of the box girder inner mold by moving along the entire length of the box girder inner mold; the grinding force of the positive grinding roller of the top template, the side grinding roller of the top template, the middle grinding roller of the side template, the upper grinding roller of the side template and the lower grinding roller of the side template is controllable, and the positioning roller adjusts the posture of the grinding roller while limiting its grinding force. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the inner mold of the whole set of box beams;

[0021] Figure 2 for Figure 1 Section view at AA (diagram of standard section template);

[0022] Figure 3 for Figure 1 Cross-section view at the middle BB (schematic diagram of the end section template);

[0023] Figure 4 This is a three-dimensional picture of the box beam inner mold grinding machine;

[0024] Figure 5 This is the front view of the box beam inner mold grinding machine;

[0025] Figure 6 This is the rear view of the box beam inner mold grinding machine;

[0026] Figure 7 It is a schematic diagram of the positions of the positive grinding roller of the top template, the side grinding roller of the top template, the middle grinding roller of the side template, the upper grinding roller of the side template, and the lower grinding roller of the side template;

[0027] Figure 8 This is a bottom view of the box beam inner mold grinding machine;

[0028] Fig. 9 This is the structural diagram of the positive grinding roller of the top surface template;

[0029] Fig.10 It is a side view of the grinding roller of the top template;

[0030] Fig.11 This is the structural diagram of the grinding roller on the top template side;

[0031] Fig.12 It is a schematic diagram of the front and back swing of the grinding roller on the top template side;

[0032] Fig.13 Schematic diagram of the left and right swing of the grinding roller on the top template side.

[0033] In the figure: 1-portal frame; 2-wheel; 3-reduction motor; 4-top template positive grinding roller; 4.1-first grinding roller bracket; 4.2-first grinding roller; 4.3-first positioning roller; 4.4-first roller bracket; 4.5-first telescopic guide rod; 4.6-first spring; 4.7-first grinding motor; 5-top template side grinding roller; 5.1-second grinding roller bracket; 5.2-second grinding roller; 5.3-second positioning roller; 5.4-second roller bracket; 5.5-second telescopic guide rod; 5.6-second spring; 5.7-second grinding motor; 5.8-guide rail; 5.9-slider; 5.10-first ball joint; 5.11-second ball joint; 6-side template middle grinding roller; 7-side template upper grinding roller; 8-side template lower grinding roller; 9-box beam; 10-box beam inner mold. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown: a full-section box beam inner mold grinding machine includes a portal frame 1, the portal frame 1 is welded with steel sections, wheels 2 are installed at the bottom of four column legs of the portal frame 1, two wheels 2 are active wheels, driven by a reduction motor 3, and two wheels 2 are driven wheels; no steering mechanism is arranged between the wheels 2 and the column legs, driven by the reduction motor 3, the wheels 2 drive the portal frame 1 to move straightly along the direction of its opening.

[0036] The opening of the door-hole type frame 1 is larger than the fully unfolded standard section template. The opening of the door-hole type frame 1 is equipped with a top template positive grinding roller 4, a top template side grinding roller 5, a side template middle grinding roller 6, a side template upper grinding roller 7, and a side template lower grinding roller 8. The top template positive grinding roller 4, the top template side grinding roller 5, the side template middle grinding roller 6, the side template upper grinding roller 7, and the side template lower grinding roller 8 are arranged front and back staggered along the length direction of the door-hole type frame 1. The positive projections of the top template positive grinding roller 4, the top template side grinding roller 5, the side template middle grinding roller 6, the side template upper grinding roller 7, and the side template lower grinding roller 8 form the cross-sectional profile of the inner mold, and the positive projection direction is the opening direction of the door-hole type frame 1. The purpose of staggered arrangement is to provide each with sufficient space for activities. The positive grinding roller 4 of the top template, the side grinding roller 5 of the top template, the middle grinding roller 6 of the side template, the upper grinding roller 7 of the side template, and the lower grinding roller 8 of the side template can adjust their postures as the cross-section of the inner mold changes.

[0037] There is no special requirement for the front and back order of the positive grinding roller 4 of the top surface template, the side grinding roller 5 of the top surface template, the middle grinding roller 6 of the side template, the upper grinding roller 7 of the side template, and the lower grinding roller 8 of the side template; in this scheme, the order from front to back is: the positive grinding roller 4 of the top surface template, the side grinding roller 5 of the top surface template, the middle grinding roller 6 of the side template, and the upper grinding roller 7 of the side template, and the lower grinding roller 8 of the side template and the upper grinding roller 7 of the side template are aligned front and back.

[0038] Because there is no inclination angle in the left and right direction of the template within the grinding range of the top template positive grinding roller 4, there is only the height difference between the standard section template and the end section template, and the slope of the variable section template. Therefore, the top template positive grinding roller 4 only needs to move up and down and swing back and forth. Fig. 9 , Fig.10 As shown: the top surface template positive grinding roller 4 includes a first grinding roller bracket 4.1, a first grinding roller 4.2, a first positioning roller 4.3, a first roller bracket 4.4, a first telescopic guide rod 4.5, a first spring 4.6, and a first grinding motor 4.7.

[0039] The first grinding roller 4.2 is mounted on the first grinding roller bracket 4.1, and a first roller bracket 4.4 is mounted on the front and rear of the first grinding roller bracket 4.1, and a first positioning roller 4.3 is mounted on the first roller bracket 4.4. The first positioning rollers 4.3 in front and rear of the first grinding roller 4.2 are flush, and the circumference of the first grinding roller 4.2 is convex relative to the front and rear first positioning rollers 4.3. When the two first positioning rollers 4.3 are pressed on the template surface, the convex length of the first grinding roller 4.2 is converted into the downward pressure of the bristles. One end of the two first telescopic guide rods 4.5 is fixedly connected to the doorway type frame 1, and the other end is hinged to the hinged ear at the top of the first grinding roller bracket 4.1. The first spring 4.6 is sleeved on the first telescopic guide rod 4.5, and the first spring 4.6 is supported between the inner tube and the outer tube of the first telescopic guide rod 4.5; the first grinding motor 4.7 is installed on the top of the first grinding roller bracket 4.1, and the first grinding motor 4.7 drives the first grinding roller 4.2 to rotate through the transmission mechanism located on the side of the first grinding roller bracket 4.1, and the transmission mechanism is a chain sprocket.

[0040] The first spring 4.6 acts on the first telescopic guide rod 4.5 to keep the first telescopic guide rod 4.5 extending. The thrust of the first telescopic guide rod 4.5 makes the two first positioning rollers 4.3 roll closely against the surface of the template, the first roller bracket 4.4 swings with the slope of the template, and the first telescopic guide rod 4.5 expands and contracts with the height of the template.

[0041] Because the template within the grinding range of the top surface template side grinding roller 5 has changes in height, left and right inclination angle (the difference between the standard section template and the end section template on both sides), and there is also a slope at the variable cross-section template, the top surface template side grinding roller 5 needs to be able to move up and down, swing left and right, and swing back and forth.

[0042] like Fig.11 , Fig.12 , Fig.13 As shown: the top template side grinding roller 5 includes a second grinding roller bracket 5.1, a second grinding roller 5.2, a second positioning roller 5.3, a second roller bracket 5.4, a second telescopic guide rod 5.5, a second spring 5.6, a second grinding motor 5.7, a guide rail 5.8, a slider 5.9, a first ball joint 5.10 and a second ball joint 5.11;

[0043] The second grinding roller 5.2 is mounted on the second grinding roller bracket 5.1. A second roller bracket 5.4 is mounted on the front and rear of the second grinding roller bracket 5.1. A second positioning roller 5.3 is mounted on the second roller bracket 5.4. The second positioning rollers 5.3 on the front and rear of the second grinding roller 5.2 are flush. The circumference of the second grinding roller 5.2 is convex relative to the front and rear second positioning rollers 5.3. When the two second positioning rollers 5.3 are pressed on the template surface, the convex length of the second grinding roller 5.2 is converted into the downward pressure of the bristles. One end of the two second telescopic guide rods 5.5 is fixedly connected to the door opening type frame 1, and the other ends are respectively connected to the first ball joint 5.10 and the second ball joint 5.11. The first ball joint 5.10 is installed on the second grinding roller bracket 5.1, and the second ball joint 5.11 is connected to the slider 5.9. The guide rail 5.8 is fixed on the second grinding roller bracket 5.1, and the slider 5.9 and the guide rail 5.8 are slidably matched; the second spring 5.6 is sleeved on the second telescopic guide rod 5.5, and the second spring 5.6 is supported between the inner tube and the outer tube of the second telescopic guide rod 5.5; the second grinding motor 5.7 is installed on the side of the second grinding roller bracket 5.1, and the second grinding motor 5.7 is connected to the second grinding roller 5.2.

[0044] The second spring 5.6 acts on the second telescopic guide rod 5.5, so that the second telescopic guide rod 5.5 maintains the tendency to lengthen. The thrust of the second telescopic guide rod 5.5 makes the two second positioning rollers 5.3 roll close to the surface of the template, and the second roller bracket 5.4 swings back and forth as the slope of the template changes, that is, the second roller bracket 5.4 swings back and forth with the first ball joint 5.10 and the second ball joint 5.11 as fulcrums. The second roller bracket 5.4 swings back and forth as the slope of the template changes. When the left and right inclination angle of the template changes, the second roller bracket 5.4 swings left and right with the first ball joint 5.10 and the second ball joint 5.11 as fulcrums along the inclination angle of the template. At the same time, the slider 5.9 slides along the guide rail 5.8, and the second telescopic guide rod 5.5 telescopes and retracts as the template changes.

[0045] The posture changes of the grinding roller 6 in the side template, the grinding roller 7 on the side template, and the grinding roller 8 on the lower side template are the same as the posture changes of the grinding roller 5 on the top template side, so their structures are the same.

[0046] When in use, the grinder is hoisted by a crane until it is aligned with the box beam inner mold. The box beam inner mold is withdrawn from the formed box beam and then fully unfolded. The grinder straddles the box beam inner mold and moves along the length of the box beam inner mold.

[0047] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A full-section box beam inner mold grinding machine, characterized in that: The invention comprises a door opening type vehicle frame (1), wherein wheels (2) are installed at the bottom of the door opening type vehicle frame (1), and the wheels (2) are used to drive the door opening type vehicle frame (1) to move linearly along the direction of the door opening; A top template positive grinding roller (4), a top template side grinding roller (5), a side template middle grinding roller (6), a side template upper grinding roller (7) and a side template lower grinding roller (8) are installed in the opening of the door opening type vehicle frame (1); A top template positive grinding roller (4), a top template side grinding roller (5), a side template middle grinding roller (6), a side template upper grinding roller (7), and a side template lower grinding roller (8) are arranged staggered front and back along the length direction of the door opening type vehicle frame (1); The orthographic projections of the top template positive grinding roller (4), the top template side grinding roller (5), the side template middle grinding roller (6), the side template upper grinding roller (7), and the side template lower grinding roller (8) form a cross-sectional profile of the box beam inner mold, and the orthographic projection direction is the opening direction of the door opening type vehicle frame (1); The top template positive grinding roller (4), the top template side grinding roller (5), the side template middle grinding roller (6), the side template upper grinding roller (7) and the side template lower grinding roller (8) can be extended and retracted forward and backward and move along with the cross-section change of the box beam inner mold.

2. A full-section box beam inner mold grinding machine according to claim 1, characterized in that: The top surface template positive grinding roller (4) comprises a first grinding roller bracket (4.1), a first grinding roller (4.2), a first positioning roller (4.3), a first roller bracket (4.4), a first telescopic guide rod (4.5), a first spring (4.6) and a first grinding motor (4.7); The first grinding roller (4.2) is mounted on the first grinding roller bracket (4.1), and a first roller bracket (4.4) is mounted on the front and rear of the first grinding roller bracket (4.1). A first positioning roller (4.3) is mounted on the first roller bracket (4.4). The first positioning rollers (4.3) on the front and rear of the first grinding roller (4.2) are flush with each other, and the circumference of the first grinding roller (4.2) is convex relative to the front and rear first positioning rollers (4.3). One end of the first telescopic guide rod (4.5) is connected to the door opening type frame. (1) is fixedly connected, and the other end is hinged to the hinge ear at the top of the first grinding roller bracket (4.1); the first spring (4.6) is sleeved on the first telescopic guide rod (4.5), and the first spring (4.6) is supported between the inner tube and the outer tube of the first telescopic guide rod (4.5); the first grinding motor (4.7) is installed on the top of the first grinding roller bracket (4.1), and the first grinding motor (4.7) drives the first grinding roller (4.2) through the transmission mechanism located on the side of the first grinding roller bracket (4.1).

3. A full-section box beam inner mold grinding machine according to claim 2, characterized in that: The top surface template side grinding roller (5) comprises a second grinding roller bracket (5.1), a second grinding roller (5.2), a second positioning roller (5.3), a second roller bracket (5.4), a second telescopic guide rod (5.5), a second spring (5.6) and a second grinding motor (5.7); The second grinding roller (5.2) is mounted on the second grinding roller bracket (5.1), and a second roller bracket (5.4) is mounted on the front and rear of the second grinding roller bracket (5.1). A second positioning roller (5.3) is mounted on the second roller bracket (5.4). The second positioning rollers (5.3) on the front and rear of the second grinding roller (5.2) are flush with each other, and the circumference of the second grinding roller (5.2) is convex relative to the front and rear second positioning rollers (5.3). One end of the two second telescopic guide rods (5.5) is fixedly connected to the door opening type vehicle frame (1), and the other end is respectively connected to the first ball joint (5.10) and the second ball joint (5.11). 11), the first ball joint (5.10) is fixed on the second grinding roller bracket (5.1), the second ball joint (5.11) is slidably connected to the second grinding roller bracket (5.1), and the sliding direction of the second ball joint (5.11) is parallel to the axis of the second grinding roller (5.2); the second spring (5.6) is sleeved on the second telescopic guide rod (5.5), and the second spring (5.6) is supported between the inner tube and the outer tube of the second telescopic guide rod (5.5); the second grinding motor (5.7) is installed on the side of the second grinding roller bracket (5.1), and the second grinding motor (5.7) is connected to the second grinding roller (5.2).

4. A full-section box beam inner mold grinding machine according to claim 3, characterized in that: The second ball joint (5.11) is connected with a slide block (5.9), the top of the second grinding roller bracket (5.1) is fixed with a guide rail (5.8), the guide rail (5.8) is parallel to the axis of the second grinding roller (5.2), and the slide block (5.9) and the guide rail (5.8) are slidably matched.

5. The full-section box beam inner mold grinding machine according to claim 3 is characterized in that: The grinding roller (6) in the side template, the grinding roller (7) on the side template, the grinding roller (8) on the bottom of the side template and the grinding roller (5) on the top template have the same structure.

6. A full-section box beam inner mold grinding machine according to claim 2, characterized in that: The transmission mechanism between the first grinding motor (4.7) and the first grinding roller (4.2) is a chain sprocket.

7. The full-section box beam inner mold grinding machine according to claim 1, characterized in that: The door opening type vehicle frame (1) comprises four column legs, and wheels (2) are installed at the bottom of the four column legs, two wheels (2) are driving wheels driven by a reduction motor (3), and two wheels (2) are driven wheels.

8. A full-section box beam inner mold grinding machine according to any one of claims 1 to 7, characterized in that: The top template positive grinding roller (4), the top template side grinding roller (5), the side template middle grinding roller (6), and the side template upper grinding roller (7) are arranged in sequence from front to back, and the side template lower grinding roller (8) and the side template upper grinding roller (7) are aligned front to back.

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