Girder top galling device for high-speed rail box girder

Abstract

The utility model relates to a high-speed rail box girder top galling device which effectively solves the problems that the galling depth changes and galling traces are disordered. According to the technical scheme, the napping machine comprises a U-shaped plate with a downward opening, two side plates of the U-shaped plate are arranged front and back, a plurality of rotating shafts which are arranged front and back and can rotate around the axis are installed on the lower side between the two side plates of the U-shaped plate, the rotating shafts are sleeved with rollers, and two napping units which are arranged front and back and can swing inwards and outwards around the hinged position are hinged to the upper side between the two side plates of the U-shaped plate. The end faces, away from the hinged position, of the two galling units face downwards, and the multiple rollers are located between the two galling units. The number of the idler wheels is multiple, the lower sides of the idler wheels are flush, it can be guaranteed that the height of the front-back position of the U-shaped plate in the advancing direction is changed in the advancing process, and then it is guaranteed that the height of the galling depth is not changed; meanwhile, the arrangement of the plurality of rollers can also enlarge the contact surface with the concrete, and the extrusion force on the concrete is reduced.

Description

Technical Field

[0001] The utility model relates to the field of roughening, in particular to a device for roughening the top of a high-speed railway box girder. Background Art

[0002] In the stage of finishing the top of the high-speed railway box girder after casting, the process of roughening the top of the beam is a very important step. The existing roughening method, such as the scheme with the authorization publication number CN210238294U, is to roughen the concrete through a roller in the middle and roughening devices on both sides. Although roughening can be performed, there are the following problems:

[0003] 1. Since there is only one roller, when the first pull ring is dragged on both sides for roughening, the roughening devices on both sides of the roller will move up and down around the roller due to the shaking of the frame, resulting in changes in the roughening depth;

[0004] And because there is only one roller, the force of the entire skeleton is applied to the roller, the pressure on the lower side of the roller will be greater, and the fluidity of the concrete is lower when roughening, but it will still deform to the front and rear ends of the roller after being squeezed, resulting in an uneven road surface.

[0005] 2. Since there are roughening devices on both sides of the roller, and the lower sides of the roughening devices on both sides are lower than roller 3 during roughening, repeated roughening will occur, and at the same time, the roughening width will be too wide due to the inability to completely correspond between the front and the back, or the roughening marks will be chaotic due to the complete inability to correspond, and the quality standards will not be met. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a device for roughening the top of a high-speed railway box girder, which effectively solves the problems of changes in the roughening depth and confusion of the roughening traces.

[0007] The technical solution is a high-speed railway box girder top roughening device, comprising a U-shaped plate with an opening facing downward, two side plates of the U-shaped plate placed front and back, a plurality of rotating shafts arranged front and back and rotatable around an axis are installed on the lower side between the two side plates of the U-shaped plate, rollers are sleeved on the rotating shafts, and the lower sides of the plurality of rollers are flush and located on the lower side of the lower end surface of the U-shaped plate;

[0008] The upper side between the two side plates of the U-shaped plate is hinged with two roughening units arranged front and back and capable of swinging inward and outward around the hinge, the end surfaces of the two roughening units away from the hinge face downward, and a plurality of rollers are located between the two roughening units;

[0009] When the roller rolls, the roller can drive the hair pulling unit to swing, and the swing direction of the hair pulling unit is consistent with the rotation direction of the lower side of the roller, and the hair pulling unit located on the front side of the swinging direction stops swinging when it swings vertically, and the hair pulling unit located on the rear side tilts inward, and the roller can continue to roll at this time. At this time, the lower side of the vertical hair pulling unit is lower than the lower side of the roller, and the lower side of the inclined hair pulling unit is higher than the lower side of the roller.

[0010] A driving gear is fixed at the front end of one of the rotating shafts in the U-shaped plate, and a driven gear is fixed on the front end surface of the U-shaped plate, and the driving gear meshes with the driven gear;

[0011] Two first fixed blocks arranged left and right are fixed on the front end surface of the U-shaped plate, and a straight rod arranged left and right and movable left and right is inserted on the two first fixed blocks. A rack is fixed on the lower end surface of the straight rod, and the rack can mesh with the driven gear. When one of the napping units is placed vertically, the rack is disengaged from the driven gear.

[0012] The two ends of the straight rod are located on the outside of the two first fixed blocks, and cylindrical blocks are fixed on the rear end faces of the two ends of the straight rod. Support blocks are fixed on the front sides of the inner end faces of the two roughening units. A through groove is opened on the front end face of the support block along the length direction of the front end of the roughening unit, and the cylindrical block is placed in the through groove on the corresponding side.

[0013] The front end surface of the U-shaped plate is located on the upper side of the straight rod and a rectangular block is fixed thereon. A tension spring is fixed on the lower side of the rectangular block. The lower end of the tension spring is fixed to the upper end of the straight rod. The tension spring gives the straight rod a force to swing the vertically placed napping unit inward.

[0014] The roughening unit is composed of a swing plate and roughening teeth, the roughening teeth are located at the lower side of the swing rod and point to the swing plate, and the support block is fixed on the swing plate.

[0015] A stopper is fixed on each of the front and rear sides of the U-shaped plate and located outside the roughening unit. When the swing plate is placed vertically, the stopper contacts the outer end surface of the swing plate.

[0016] A swing rod which swings left and right is hingedly connected in the middle of the upper end surface of the U-shaped plate.

[0017] The number of the rollers is greater than or equal to two.

[0018] 1. The utility model has multiple rollers with flush lower sides, which can ensure that the front and rear positions of the U-shaped plate in the advancing direction will change in height during the advancing process, thereby ensuring that the roughening depth will not change in height; at the same time, the arrangement of multiple rollers can also increase the contact surface with the concrete, reduce the squeezing force on the concrete, and prevent the concrete from being squeezed to the front and rear ends of the mixing wheel due to the high pressure of a single roller.

[0019] 2. When the utility model moves through the U-shaped plate, the roughening unit located on the front side of the moving direction is in an inward swinging state and is not in contact with the concrete, and the roughening unit located on the rear side of the moving direction roughens the concrete, which can prevent the other two roughening teeth in the front and rear from not completely corresponding to each other, resulting in a roughening width that is too wide, or from not being able to correspond at all, resulting in chaotic roughening marks that do not meet quality standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the utility model.

[0021] Figure 2 This is a front view of the utility model without the front end face of the U-shaped plate.

[0022] Figure 3 This is a top view of the utility model with the upper end surface of the U-shaped plate removed.

[0023] Figure 4 This is a diagram showing the matching state of the roughening unit and the straight rod of the utility model.

[0024] Figure 5 This is a usage state diagram of the utility model. DETAILED DESCRIPTION

[0025] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] Depend on Figures 1 to 5 The utility model comprises a U-shaped plate 1 with an opening facing downward, and two side plates of the U-shaped plate 1 are placed front and back, and a plurality of rotating shafts 2 arranged front and back and capable of rotating around an axis are installed on the lower side between the two side plates of the U-shaped plate 1, and rollers 3 are sleeved on the rotating shafts 2, and the lower sides of the plurality of rollers 3 are flush and located on the lower side of the lower end surface of the U-shaped plate 1;

[0027] The upper side between the two side plates of the U-shaped plate 1 is hinged with two roughening units arranged front and back and capable of swinging inward and outward around the hinge, the end surfaces of the two roughening units away from the hinge face downward, and a plurality of rollers 3 are located between the two roughening units;

[0028] When the roller 3 rolls, the roller 3 can drive the hair pulling unit to swing, and the swing direction of the hair pulling unit is consistent with the rotation direction of the lower side of the roller 3, and the hair pulling unit located on the front side of the swinging direction stops swinging when it swings vertically, and the hair pulling unit located on the rear side tilts inward. At this time, the roller 3 can continue to roll. At this time, the lower side of the vertical hair pulling unit is lower than the lower side of the roller 3, and the lower side of the inclined hair pulling unit is higher than the lower side of the roller 3.

[0029] A driving gear 4 is fixed at the front end of one of the rotating shafts 2 in the U-shaped plate 1, and a driven gear 5 is fixed on the front end surface of the U-shaped plate 1, and the driving gear 4 meshes with the driven gear 5;

[0030] Two first fixed blocks 6 arranged left and right are fixed to the front end surface of the U-shaped plate 1, and a straight rod 7 arranged left and right and movable left and right is inserted on the two first fixed blocks 6. A rack 8 is fixed to the lower end surface of the straight rod 7, and the rack 8 can mesh with the driven gear 5. When one of the napping units is placed vertically, the rack 8 is disengaged from the driven gear 5.

[0031] The two ends of the straight rod 7 are located outside the two first fixed blocks 6, and cylindrical blocks 9 are fixed to the rear end faces of the two ends of the straight rod 7. Support blocks 10 are fixed to the front sides of the inner end faces of the two roughening units. A through groove 11 is opened on the front end face of the support block 10 along the length direction of the front end of the roughening unit, and the cylindrical block 9 is placed in the through groove 11 on the corresponding side.

[0032] When the roller 3 rotates, the roller 3 drives the driven gear 5 to rotate via the rotating shaft 2 and the driving gear 4, and the driven gear 5 drives the straight rod 7 to move left and right via the rack 8, and the straight rod 7 makes the corresponding napping unit be placed vertically.

[0033] The front end surface of the U-shaped plate 1 is located on the upper side of the straight rod 7 and a rectangular block 12 is fixed thereto. A tension spring is fixed to the lower side of the rectangular block 12. The lower end of the tension spring is fixed to the upper end of the straight rod 7. The tension spring gives the straight rod 7 a force that causes the vertically placed napping unit to swing inward.

[0034] The roughening unit is composed of a swing plate 13 and roughening teeth 14 . The roughening teeth 14 are located at the lower side of the swing rod 16 and point to the swing plate 13 . The support block 10 is fixed on the swing plate 13 .

[0035] A stopper 15 is fixed to the outside of the roughening unit on the front and rear sides of the U-shaped plate 1 . When the swing plate 13 is placed vertically, the stopper 15 contacts the outer end surface of the swing plate 13 .

[0036] A swing rod 16 is hingedly connected to the middle of the upper end surface of the U-shaped plate 1 so as to swing left and right.

[0037] The number of the rollers 3 is greater than or equal to two.

[0038] Before the utility model is used, one of the swing plates 13 is in a vertical state, the other swing plate 13 swings inwards, the driven gear 5 and the rack 8 are in a disengaged state, and the tension spring causes the vertically placed swing plate 13 to be subjected to an inward swinging force through the straight rod 7, so that the rack 8 is in contact with the driven gear 5;

[0039] When the utility model is used, the swing rod 16 is held, and then the roller 3 is placed on the concrete to be roughened, and the vertically placed swing plate 13 is placed at the rear side of the roughening forward direction, and the roughening teeth 14 located at the lower side are inserted into the concrete; at this time, the swing plate 13 located at the front side of the forward direction swings inward, and because the lower side of the roughening unit is higher than the lower side of the roller 3 after the swing, the roughening teeth 14 located at the lower side are inserted without contacting the concrete, and then the U-shaped plate 1 is moved to the direction to be roughened via the swing rod 16;

[0040] When the U-shaped plate 1 moves, the U-shaped plate 1 will cause the rollers 3 to rotate to flatten the concrete. Since there are multiple rollers 3 and the lower sides are flush, it can be ensured that the front and rear positions of the U-shaped plate 1 in the forward direction change during the forward process, thereby ensuring that the roughening depth does not change in height; at the same time, the arrangement of multiple rollers 3 can also increase the contact surface with the concrete, reduce the squeezing force on the concrete, and prevent the concrete from being squeezed to the front and rear ends of the mixing wheel due to the high pressure of a single roller 3;

[0041] When the roller 3 rolls with the movement of the U-shaped plate 1, since the swing plate 13 located at the rear side of the moving direction is in a vertical state, at this time, relative to the forward direction of the U-shaped plate 1, the rack 8 on the straight rod 7 is just located at the rear side of the upper side of the driven gear 5 and is in a disengaged state. After the roller 3 drives the driven gear 5 to rotate through the rotating shaft 2 and the driving gear 4, the driven gear 5 has been disengaged from the rack 8, so it will no longer push the straight rod 7 to move to the rear side of the forward direction through the rack 8 until the roughening in the forward direction is completed;

[0042] When the roughening in the forward direction is completed, the U-shaped plate 1 is separated from the concrete and moved to the parallel concrete for reverse roughening again. During the reverse roughening, the roughening unit located at the front side of the reverse roughening is in a vertical state, and the roughening unit located at the rear side of the reverse roughening is in an inward swinging state;

[0043] Then, the U-shaped plate 1 is dragged to move in the reverse direction, and the U-shaped plate 1 drives the roller 3 to rotate in the reverse direction. The roller 3 drives the driven gear 5 to rotate in the direction via the rotating shaft 2 and the driving gear 4. Since the tension spring on the upper side of the straight rod 7 provides a pulling force to the straight rod 7 to make the rack 8 contact with the driven gear 5, the driven gear 5 will mesh with the rack 8 again after the reverse rotation and push the straight rod 7 to rotate in the reverse direction. The straight rod 7 drives the swing plate 13 located at the front side of the reverse movement direction to swing inward through the through groove 11, so that the swing plate 13 located at the rear side of the reverse movement direction is swung to vertical and is stopped by the stopper 15 to stop swinging; at this time, the driven gear 5 is disengaged from the rack 8 again, and it only needs to continue to drag the U-shaped plate 1 to complete the reverse movement roughening;

[0044] Continue to repeat the above steps until the desired concrete roughening is completed.

[0045] 1. The utility model has multiple rollers 3 with flush lower sides, which can ensure that the front and rear positions of the U-shaped plate 1 in the forward direction will not change in height during the forward process, thereby ensuring that the roughening depth will not change in height; at the same time, the arrangement of multiple rollers 3 can also increase the contact surface with the concrete, reduce the squeezing force on the concrete, and prevent the concrete from being squeezed toward the front and rear ends of the mixing wheel due to the high pressure of a single roller 3.

[0046] 2. When the U-shaped plate 1 is moved by the utility model, the roughening unit located at the front side of the moving direction is in an inward swinging state and is not in contact with the concrete, and the roughening unit located at the rear side of the moving direction roughens the concrete, which can prevent the other two roughening teeth 14 in the front and rear from being too wide due to the inability to completely correspond to each other, or from causing the roughening traces to be chaotic and fail to meet the quality standards due to the inability to correspond at all.

Claims

1. A device for roughening the top of a high-speed railway box girder, characterized in that: It comprises a U-shaped plate (1) with an opening facing downward, two side plates of the U-shaped plate (1) are arranged front and back, a plurality of rotating shafts (2) arranged front and back and capable of rotating around an axis are installed on the lower side between the two side plates of the U-shaped plate (1), rollers (3) are sleeved on the rotating shafts (2), and the lower sides of the plurality of rollers (3) are flush and located on the lower side of the lower end surface of the U-shaped plate (1); The upper side between the two side plates of the U-shaped plate (1) is hinged with two roughening units arranged front and back and capable of swinging inward and outward around the hinge, the end surfaces of the two roughening units away from the hinge face downward, and a plurality of rollers (3) are located between the two roughening units; When the roller (3) rolls, the roller (3) can drive the napping unit to swing, and the swing direction of the napping unit is consistent with the rotation direction of the lower side of the roller (3), and the napping unit located at the front side of the swing direction stops swinging when it swings vertically, and the napping unit located at the rear side tilts inwards. At this time, the roller (3) can continue to roll, and at this time, the lower side of the vertical napping unit is lower than the lower side of the roller (3), and the lower side of the tilted napping unit is higher than the lower side of the roller (3).

2. The device for roughening the top of a high-speed railway box beam according to claim 1, characterized in that: A driving gear (4) is fixed at the front end of one of the rotating shafts (2) in the U-shaped plate (1), and a driven gear (5) is fixed on the front end surface of the U-shaped plate (1), and the driving gear (4) meshes with the driven gear (5); Two first fixed blocks (6) arranged left and right are fixed to the front end surface of the U-shaped plate (1), and a straight rod (7) arranged left and right and movable left and right is inserted on the two first fixed blocks (6). A rack (8) is fixed to the lower end surface of the straight rod (7), and the rack (8) can mesh with the driven gear (5). When one of the roughening units is placed vertically, the rack (8) is disengaged from the driven gear (5); The two ends of the straight rod (7) are located outside the two first fixed blocks (6), and cylindrical blocks (9) are fixed to the rear end faces of the two ends of the straight rod (7). Support blocks (10) are fixed to the front sides of the inner end faces of the two roughening units. A through groove (11) is formed on the front end face of the support block (10) along the length direction of the front end of the roughening unit, and the cylindrical block (9) is placed in the through groove (11) on the corresponding side.

3. The device for roughening the top of a high-speed railway box beam according to claim 2, characterized in that: A rectangular block (12) is fixed to the front end surface of the U-shaped plate (1) on the upper side of the straight rod (7), a tension spring is fixed to the lower side of the rectangular block (12), and the lower end of the tension spring is fixed to the upper end of the straight rod (7). The tension spring applies a force to the straight rod (7) to cause the vertically placed napping unit to swing inward.

4. The device for roughening the top of a high-speed railway box beam according to claim 2, characterized in that: The roughening unit is composed of a swing plate (13) and roughening teeth (14); the roughening teeth (14) are located on the lower side of the swing rod (16) and point toward the swing plate (13); and the support block (10) is fixed on the swing plate (13).

5. The device for roughening the top of a high-speed railway box beam according to claim 4, characterized in that: A stopper (15) is fixed to each of the front and rear sides of the U-shaped plate (1) on the outside of the roughening unit. When the swing plate (13) is placed vertically, the stopper (15) contacts the outer end surface of the swing plate (13).

6. The device for roughening the top of a high-speed railway box beam according to claim 1, characterized in that: A swing rod (16) is hingedly connected to the middle of the upper end surface of the U-shaped plate (1) so as to swing left and right.

7. The device for roughening the top of a high-speed railway box beam according to claim 1, characterized in that: The number of the rollers (3) is greater than or equal to two.

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