CN109794829B

CN109794829B - Steel box girder T rib cut-open grinding device

Info

Publication number: CN109794829B
Application number: CN201910285995.3A
Authority: CN
Inventors: 孟海荣
Original assignee: Wuhan Hai Teng Steel Structure Engineering Co ltd
Current assignee: Wuhan Hai Teng Steel Structure Engineering Co ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-07-21
Anticipated expiration: 2039-04-10
Also published as: CN109794829A

Abstract

The invention discloses a polishing device for a T-rib cut of a steel box girder, which relates to the technical field of polishing devices and has the technical scheme that the polishing device comprises a rack, wherein a plurality of bases are connected on the rack in a sliding manner along the length direction of the rack, a fixing mechanism for fixing a bottom plate is arranged on each base, and each fixing mechanism comprises a plurality of vertical moving cylinders vertically arranged on the bases, a movable frame arranged on piston rods of the plurality of vertical moving cylinders, and two groups of fixing assemblies symmetrically arranged at two ends of the movable frame; the rack is provided with a driving mechanism for driving the plurality of bases to move; the grinding mechanism comprises a grinding frame fixedly connected to the top of the frame, a grinding motor horizontally arranged on one side of the grinding frame and a grinding wheel sleeved and fixed on an output shaft of the grinding motor; the axial direction of the grinding wheel is parallel to the width direction of the machine frame. The invention solves the problem of higher labor intensity of operators and achieves the effect of reducing the labor intensity of the operators.

Description

Steel box girder T rib cut-open grinding device

Technical Field

The invention relates to the technical field of polishing devices, in particular to a polishing device for a T-shaped rib cut of a steel box girder.

Background

The steel box girder is also called steel plate box girder, and is a common structural form of a large-span bridge. The steel box girder is generally used on bridges with large span and is called as a steel box girder because the steel box girder is shaped like a box. In order to reinforce the strength of the beam, many T-ribs are provided on the steel box girder.

As shown in fig. 1, the T-rib 1 includes a bottom plate 11 and a riser 12; however, the T-rib needs to be ground before assembly to secure the welded connection, and in the prior art, the cut of the T-rib is ground manually, which increases the labor intensity of the operator.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a grinding device for the T-rib section of a steel box girder, which can grind the section of the T rib in batches, so that the labor intensity of operators can be reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a steel box girder T rib cut-off polishing device comprises a rack, wherein a plurality of bases are connected to the rack in a sliding mode along the length direction of the rack, a fixing mechanism for fixing a bottom plate is installed on each base, and each fixing mechanism comprises a plurality of vertical moving cylinders vertically installed on the bases, a movable frame installed on piston rods of the plurality of vertical moving cylinders, and two groups of fixing assemblies symmetrically arranged at two ends of the movable frame; the rack is provided with a driving mechanism for driving the plurality of bases to move; the grinding mechanism comprises a grinding frame fixedly connected to the top of the frame, a grinding motor horizontally arranged on one side of the grinding frame and a grinding wheel sleeved and fixed on an output shaft of the grinding motor; the axial direction of the grinding wheel is parallel to the width direction of the machine frame.

By adopting the technical scheme, firstly, two T ribs are placed on each movable frame, then the two bottom plates are respectively fixed through two groups of fixing assemblies, and after the T ribs are placed on the supporting plate of each base, the base is driven to move through the driving mechanism, so that the cut-off openings of the T ribs are positioned below the polishing wheel; then starting a grinding motor, wherein an output shaft of the grinding motor drives a grinding wheel to rotate; and then the piston rod of the vertical moving cylinder drives the movable frame to move upwards, the movable frame moves upwards to drive the T rib to move upwards, and the T rib moves upwards to enable the cut-out of the T rib to be in contact with the polishing wheel, so that the cut-out of the T rib can be polished, and the labor intensity of operators can be reduced.

The invention is further configured to: each group of fixed assemblies comprises a first transverse moving cylinder horizontally arranged on the movable frame, a movable block fixedly connected to a piston rod of the first transverse moving cylinder, a rectangular groove formed in the movable block and far away from the first transverse moving cylinder, a second transverse moving cylinder horizontally arranged on the movable frame and a triangular block fixedly connected to a piston rod of the second transverse moving cylinder; one end of the rectangular groove, which is close to the triangular block, is provided with a notch, the triangular block is arranged corresponding to the notch, and a blocking assembly for blocking the bottom plate is arranged on the rectangular groove; the movable block and the triangular block slide back to back or in opposite directions along the width direction of the rack.

By adopting the technical scheme, when the bottom plate needs to be fixed, the bottom plate is firstly placed in the rectangular groove, then the bottom plate is blocked by the blocking assembly, and then the movable block is driven by the piston rod of the first transverse moving cylinder to move close to the triangular block; when the movable block moves to a designated position, the piston rod of the second transverse moving cylinder drives the triangular block to move close to the T rib, so that the bottom plate can be fixed in the rectangular groove; the first transverse moving cylinder is arranged, so that an operator can conveniently place the bottom plate in the rectangular groove; through setting up fixed subassembly, be convenient for fix the bottom plate, therefore be convenient for polish the cut-out of T rib.

The invention is further configured to: the blocking assembly comprises a first blocking block fixedly connected to one side of the rectangular groove, a second blocking block fixedly connected to the other side of the rectangular groove, a square bolt connected to the first blocking block in a sliding mode along the length direction of the rack, a round block sleeved and fixed on the square bolt, a blocking spring sleeved on the square bolt and a jack arranged on one side, close to the first blocking block, of the second blocking block; one end of the square bolt penetrates through the first stop block to be inserted into the jack, the other end of the square bolt is fixedly connected with a handle, and the bottom of the square bolt abuts against the top of the bottom plate; the handle is arranged close to one side of the first stop block, which is far away from the second stop block, and the round block is positioned between the first stop block and the handle; the two ends of the blocking spring are fixedly connected to the first stop block and the round block respectively, and the movable block is provided with a yielding groove for the blocking spring to move.

By adopting the technical scheme, when the bottom plate needs to be blocked, the square bolt is pulled by the pulling handle, the square bolt moves to drive the round block to move, the round block moves to stretch the blocking spring, and the blocking spring is in a stretched state; then put the rectangular channel with the bottom plate in, loosen the handle next, the dog pulls square bolt and jack grafting under the effect that blocks the spring this moment to can prevent that the bottom plate from upwarping, therefore block the subassembly through setting up, the triangle of being convenient for is fixed the bottom plate.

The invention is further configured to: a supporting assembly for supporting the vertical plate is installed on one side, away from the triangular block, of the second transverse moving cylinder, and comprises a connecting block fixedly connected to one side, away from the vertical moving cylinder, of the movable frame, a vertical sliding groove formed in the top of the connecting block, a supporting block connected to the vertical sliding groove in a sliding mode along the vertical direction, and a supporting spring abutted to the bottom of the supporting block; the top of the supporting block is provided with an inclined surface which abuts against the side surface of one side of the vertical plate; one end of the supporting spring, which is far away from the supporting block, abuts against the bottom of the vertical sliding groove.

Through adopting above-mentioned technical scheme, the grinding wheel can exert decurrent power to the cut-out department of T rib when polishing the cut-out of T rib, through setting up supporting shoe and supporting spring, can support and cushion the side of T rib, therefore can reduce the possibility that the riser takes place to buckle.

The invention is further configured to: the driving mechanism comprises an asynchronous motor horizontally arranged on the side wall of one end of the rack, a driving roller rotationally connected to one end of the rack, two driving chain wheels respectively sleeved and fixed at two ends of the driving roller, a driven roller rotationally connected to one end of the rack far away from the driving roller, two driven chain wheels respectively sleeved and fixed at two ends of the driven roller, and two chains respectively rotationally connected to two sides of the rack and parallel to each other; an output shaft of the asynchronous motor penetrates through the rack along the width direction of the rack and is fixedly connected with one end of the driving roller; the chain enables the driving chain wheel and the driven chain wheel to be linked; each chain is provided with a plurality of driving blocks along the length direction, and the two ends of the base are respectively fixedly connected with the two driving blocks which are arranged on different chains and are arranged oppositely.

By adopting the technical scheme, when the base needs to be driven to move, the output shaft of the asynchronous motor drives the driving roller to rotate, the driving roller rotates to drive the driving chain wheel to rotate, the driving chain wheel rotates to drive the chain to rotate, the chain rotates to drive the driving block to move, and the driving block can drive the base to move; the asynchronous motor has the function of positive and negative rotation, so that the base can move back and forth conveniently; through setting up actuating mechanism, be convenient for drive base and remove, therefore can reduce operating personnel's intensity of labour.

The invention is further configured to: square guide rails are fixedly connected to two sides of the rack, and the two square guide rails are arranged along the length direction of the rack; square chutes are formed in the two ends of the bottom of the base, and the two ends of the base are connected to the two square guide rails in a sliding mode through the two square chutes respectively.

Through adopting above-mentioned technical scheme, square guide rail has the guide effect to the square spout to can reduce the base and take place the possibility of deviating at the length direction of following the frame in-process that slides.

The invention is further configured to: the grinding frame is provided with a scrap suction mechanism for collecting scraps, and the scrap suction mechanism comprises a scrap suction cover fixedly connected to the grinding frame and a fan arranged outside the frame; an air inlet of the fan is communicated with the top of the scrap suction cover through a pipeline; and a material receiving assembly is arranged on an air outlet of the fan.

Through adopting above-mentioned technical scheme, the wheel of polishing can produce the piece when polishing the cut-out of T rib, starts the fan, and the fan makes inhales the bits cover and produces suction, then the piece is in proper order after inhaling bits cover and fan, and the rethread is received the material subassembly and is collected the piece, collects the piece through inhaling bits mechanism, and the wheel of polishing of being convenient for is polished the cut-out of T rib.

The invention is further configured to: the material receiving assembly comprises a cyclone separator arranged outside the frame, an air inlet pipe communicated with one side of the cyclone separator, an exhaust pipe communicated with the top of the cyclone separator, a filter arranged on the exhaust pipe, a material discharging pipe communicated with the bottom of the cyclone separator and a collecting box arranged below the material discharging pipe; and one end of the air inlet pipe, which is far away from the cyclone separator, is communicated with an air outlet of the fan.

Through adopting above-mentioned technical scheme, the piece is blown into in cyclone by the fan, then under cyclone's effect, in the piece arranges the collecting box from arranging the material pipe, is convenient for collect the piece through setting up receipts material subassembly.

In summary, compared with the prior art, the invention has the following beneficial effects:

1. firstly, placing two T ribs on each movable frame, then fixing two bottom plates through two groups of fixing assemblies respectively, and driving the base to move through a driving mechanism after the T ribs are placed on the supporting plate of each base, so that the cut-off openings of the T ribs are positioned below a grinding wheel; then starting a grinding motor, wherein an output shaft of the grinding motor drives a grinding wheel to rotate; then, the piston rod of the vertical moving cylinder drives the movable frame to move upwards, the movable frame moves upwards to drive the T rib to move upwards, the T rib moves upwards to enable the cut-out of the T rib to be in contact with the polishing wheel, and therefore the cut-out of the T rib can be polished, and labor intensity of operators can be reduced;

2. when the bottom plate needs to be fixed, the bottom plate is placed in the rectangular groove, then the bottom plate is blocked through the blocking assembly, and then the movable block is driven to move close to the triangular block through the piston rod of the first transverse moving cylinder; when the movable block moves to a designated position, the piston rod of the second transverse moving cylinder drives the triangular block to move close to the T rib, so that the bottom plate can be fixed in the rectangular groove; the first transverse moving cylinder is arranged, so that an operator can conveniently place the bottom plate in the rectangular groove; the bottom plate is convenient to fix by arranging the fixing assembly, so that the groove of the T rib is convenient to polish;

3. the piece is blown into in cyclone by the fan, then under cyclone's effect, in the piece arranges the collecting box from row material pipe, is convenient for collect the piece through setting up material collecting assembly.

Drawings

FIG. 1 is a schematic structural view of a T-rib in the prior art;

FIG. 2 is a schematic view of the overall structure of the embodiment;

FIG. 3 is a schematic view showing the structure of the driving mechanism in the embodiment;

FIG. 4 is a schematic view showing the structure of the fixing mechanism in the embodiment;

FIG. 5 is a schematic view of the embodiment highlighting the blocking element;

FIG. 6 is an exploded view of the highlighted support assembly of the embodiment;

FIG. 7 is a schematic structural view of a chip suction mechanism according to an embodiment.

In the figure: 1. a T-rib; 11. a base plate; 12. a vertical plate; 2. a frame; 21. a square guide rail; 3. a base; 31. a square chute; 4. a fixing mechanism; 41. vertically moving the cylinder; 42. a movable frame; 43. a fixing assembly; 431. a first traverse cylinder; 432. a movable block; 433. a rectangular groove; 434. a second traverse cylinder; 435. a triangular block; 436. opening the gap; 44. a blocking component; 441. a first stopper; 442. a second stopper; 443. a square bolt; 444. a round block; 445. a blocking spring; 446. a jack; 447. a handle; 448. a yielding groove; 5. a polishing mechanism; 51. a polishing frame; 52. polishing the motor; 53. grinding the wheel; 6. a drive mechanism; 61. an asynchronous motor; 62. a drive roll; 63. a drive sprocket; 64. a driven roller; 65. a driven sprocket; 66. a chain; 67. a drive block; 68. a controller; 7. a support assembly; 71. connecting blocks; 72. a vertical chute; 73. a support block; 74. a support spring; 75. a bevel; 8. a scrap suction mechanism; 81. a scrap suction cover; 82. a fan; 83. a material receiving assembly; 831. a cyclone separator; 832. an air inlet pipe; 833. an exhaust pipe; 834. a filter; 835. a discharge pipe; 836. and a collection box.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b): a steel box girder T rib cut-off grinding device comprises a frame 2, wherein a plurality of bases 3 are connected to the frame 2 in a sliding mode along the length direction of the frame, a fixing mechanism 4 used for fixing a bottom plate 11 is installed on each base 3, each fixing mechanism 4 comprises a plurality of vertical moving cylinders 41 vertically installed on each base 3, a movable frame 42 installed on piston rods of the plurality of vertical moving cylinders 41, and two groups of fixing assemblies 43 symmetrically arranged at two ends of each movable frame 42; the frame 2 is provided with a driving mechanism 6 for driving the plurality of bases 3 to move; a grinding mechanism 5 is arranged on the frame 2, and the grinding mechanism 5 comprises a grinding frame 51 fixedly connected to the top of the frame 2, a grinding motor 52 horizontally arranged on one side of the grinding frame 51 and a grinding wheel 53 sleeved and fixed on an output shaft of the grinding motor 52; the axis direction of the grinding wheel 53 is parallel to the width direction of the frame 2. Placing two T ribs 1 on each movable frame 42, then respectively fixing the bottom plates 11 of the two T ribs 1 through two groups of fixing assemblies 43, and driving the base 3 to move through the driving mechanism 6 after the T ribs 1 are placed on the supporting plate of each base 3, so that the cut of the T ribs 1 is positioned below the grinding wheel 53; then, the grinding motor 52 is started, and at the moment, the output shaft of the grinding motor 52 drives the grinding wheel 53 to rotate; then, the piston rod of the vertical moving cylinder 41 drives the movable frame 42 to move upwards, the movable frame 42 moves upwards to drive the T rib 1 to move upwards, the T rib 1 moves upwards to enable the opening of the T rib 1 to be in contact with the polishing wheel 53, and therefore the opening of the T rib 1 can be polished, and labor intensity of operators can be reduced.

As shown in fig. 2 and 3, the driving mechanism 6 includes an asynchronous motor 61 horizontally mounted on a side wall of one end of the frame 2, a driving roller 62 rotatably connected to one end of the frame 2, two driving sprockets 63 respectively sleeved and fixed at two ends of the driving roller 62, a driven roller 64 rotatably connected to one end of the frame 2 far away from the driving roller 62, two driven sprockets 65 respectively sleeved and fixed at two ends of the driven roller 64, and two chains 66 respectively rotatably connected to two sides of the frame 2 and parallel to each other; an output shaft of the asynchronous motor 61 penetrates through the frame 2 along the width direction of the frame 2 and is fixedly connected with one end of the driving roller 62; the chain 66 links the driving sprocket 63 and the driven sprocket 65; a plurality of driving blocks 67 are arranged on each chain 66 along the length direction of the chain, and two ends of the base 3 are respectively fixedly connected with the two driving blocks 67 which are arranged on different chains 66 and are opposite to each other; the frame 2 is provided with a controller 68 for controlling the asynchronous motor 61, the asynchronous motor 61 is electrically connected with the controller 68, and the controller 68 can be a single chip microcomputer. When the base 3 needs to be driven to move, the output shaft of the asynchronous motor 61 drives the driving roller 62 to rotate, the driving roller 62 rotates to drive the driving chain wheel 63 to rotate, the driving chain wheel 63 rotates to drive the chain 66 to rotate, the chain 66 rotates to drive the driving block 67 to move, and the driving block 67 can drive the base 3 to move; the asynchronous motor 61 has the function of positive and negative rotation, so that the base 3 can move back and forth conveniently; through setting up actuating mechanism 6, be convenient for drive base 3 and remove, therefore can reduce operating personnel's intensity of labour.

As shown in fig. 3, two sides of the top of the rack 2 are fixedly connected with square guide rails 21, and the two square guide rails 21 are arranged along the length direction of the rack 2; square chutes 31 have been all seted up at the both ends of base 3 bottom, and the both ends of base 3 slide respectively through two square chutes 31 and connect in two square guide rails 21. The square guide rail 21 has a guiding function for the square sliding groove 31, so that the possibility of the base 3 deviating during the sliding in the length direction of the frame 2 can be reduced.

As shown in fig. 3 and 4, each set of fixing assemblies 43 comprises a first traverse cylinder 431 horizontally mounted on the movable frame 42, a movable block 432 fixedly connected to a piston rod of the first traverse cylinder 431, a rectangular groove 433 formed in the movable block 432 and far away from the first traverse cylinder 431, a second traverse cylinder 434 horizontally mounted on the movable frame 42, and a triangular block 435 fixedly connected to a piston rod of the second traverse cylinder 434; one end of the rectangular groove 433, which is close to the triangular block 435, is provided with a gap 436, the triangular block 435 is arranged corresponding to the gap 436, and the rectangular groove 433 is provided with a blocking component 44 for blocking the bottom plate 11 of the T rib 1; the movable block 432 and the triangular block 435 slide back and forth or toward each other in the width direction of the frame 2. When the bottom plate 11 of the T rib 1 needs to be fixed, the bottom plate 11 of the T rib 1 is firstly placed in the rectangular groove 433, then the bottom plate 11 of the T rib 1 is blocked by the blocking assembly 44, and then the movable block 432 is driven by the piston rod of the first transverse moving cylinder 431 to move close to the triangular block 435; when the movable block 432 moves to a designated position, the piston rod of the second traverse cylinder 434 drives the triangular block 435 to move close to the T rib 1, so that the bottom plate 11 of the T rib 1 can be fixed in the rectangular groove 433; by arranging the first transverse moving cylinder 431, an operator can conveniently place the bottom plate 11 of the T rib 1 in the rectangular groove 433; through setting up fixed subassembly 43, be convenient for fix the bottom plate 11 of T rib 1, consequently be convenient for polish the cut-out of T rib 1.

As shown in fig. 3 and 5, the blocking assembly 44 includes a first block 441 fixed to one side of the rectangular groove 433, a second block 442 fixed to the other side of the rectangular groove 433, a square plug 443 slidably connected to the first block 441 along the length direction of the rack 2, a round block 444 sleeved and fixed on the square plug 443, a blocking spring 445 sleeved on the square plug 443, and an insertion hole 446 formed at one side of the second block 442 close to the first block 441; one end of the square bolt 443 penetrates through the first stop block 441 to be inserted into the insertion hole 446, the other end of the square bolt 443 is fixedly connected with a handle 447, and the bottom of the square bolt 443 abuts against the top of the bottom plate 11 of the T-shaped rib 1; the handle 447 is arranged close to the side of the first block 441 far from the second block 442, and the round block 444 is arranged between the first block 441 and the handle 447; two ends of the blocking spring 445 are respectively and fixedly connected to the first stopper 441 and the round block 444, and the movable block 432 is provided with a yielding groove 448 for the movement of the blocking spring 445. When the bottom plate 11 of the T rib 1 needs to be blocked, the square bolt 443 is pulled by pulling the handle 447, the square bolt 443 moves to drive the round block 444 to move, the round block 444 moves to stretch the blocking spring 445, and the blocking spring 445 is in a stretched state; then, the bottom plate 11 of the T-rib 1 is placed in the rectangular groove 433, and then the handle 447 is released, and at this time, the round block 444 pulls the square insertion pin 443 to be inserted into the insertion hole 446 under the action of the blocking spring 445, so that the bottom plate 11 of the T-rib 1 can be prevented from being tilted, and therefore, the triangular block 435 can be used for fixing the bottom plate 11 of the T-rib 1 conveniently by arranging the blocking assembly 44.

As shown in fig. 4 and 6, a supporting component 7 for supporting the riser 12 of the T rib 1 is installed on one side of the second traverse cylinder 434 away from the triangular block 435, and the supporting component 7 includes a connecting block 71 fixedly connected to one side of the movable frame 42 away from the vertical movement cylinder 41, a vertical sliding groove 72 opened at the top of the connecting block 71, a supporting block 73 connected to the vertical sliding groove 72 in a vertically sliding manner, and a supporting spring 74 abutted against the bottom of the supporting block 73; the top of the supporting block 73 is provided with an inclined surface 75, and the inclined surface 75 abuts against one side surface of the T-rib 1 vertical plate 12; one end of the supporting spring 74 away from the supporting block 73 abuts against the bottom of the vertical sliding groove 72. When the grinding wheel 53 grinds the cut of the T-rib 1, a downward force is applied to the cut of the T-rib 1, and the side surface of the T-rib 1 can be supported and cushioned by providing the support block 73 and the support spring 74, so that the possibility of the riser 12 of the T-rib 1 being bent can be reduced.

As shown in fig. 2 and 7, a dust suction mechanism 8 for collecting the dust is mounted on the grinding frame 51, and the dust suction mechanism 8 includes a dust suction cover 81 fixedly connected to the grinding frame 51 and a fan 82 mounted outside the machine frame 2; an air inlet of the fan 82 is communicated with the top of the scrap suction cover 81 through a pipeline; the air outlet of the fan 82 is provided with a material receiving component 83. Grinding wheel 53 can produce the piece when polishing the cut-out of T rib 1, starts fan 82, and fan 82 makes and inhales bits cover 81 and produce suction, then the piece is in proper order after inhaling bits cover 81 and fan 82, and the rethread is received material subassembly 83 and is collected the piece, collects the piece through inhaling bits mechanism 8, is convenient for grinding wheel 53 and polishes the cut-out of T rib 1.

As shown in fig. 2 and 7, the collecting assembly 83 includes a cyclone 831 installed outside the frame 2, an inlet pipe 832 communicated with one side of the cyclone 831, an outlet pipe 833 communicated with the top of the cyclone 831, a filter 834 installed on the outlet pipe 833, a discharge pipe 835 communicated with the bottom of the cyclone 831, and a collecting tank 836 installed below the discharge pipe 835; one end of the air inlet pipe 832 far away from the cyclone 831 is communicated with an air outlet of the fan 8282. The debris is blown into the cyclone 831 by the fan 82, and then under the action of the cyclone 831, the debris is discharged into the collection box 836 from the discharge pipe 835, and the collection of the debris is facilitated by the material collecting assembly 83.

The working principle of the grinding device for the T-rib slit of the steel box girder is as follows:

the square bolt 443 is pulled by pulling the handle 447, the square bolt 443 moves to drive the round block 444 to move, the round block 444 moves to stretch the blocking spring 445, and at the moment, the blocking spring 445 is in a stretched state; then the bottom plate 11 of the T rib 1 is placed in the rectangular groove 433, then the handle 447 is loosened, at the moment, the round block 444 pulls the square plug pin 443 to be plugged into the plug hole 446 under the action of the blocking spring 445, and therefore the bottom plate 11 of the T rib 1 can be prevented from tilting; next, the piston rod of the first traversing cylinder 431 drives the movable block 432 to move close to the triangular block 435; when the movable block 432 moves to a designated position, the piston rod of the second traverse cylinder 434 drives the triangular block 435 to move close to the T rib 1, so that the bottom plate 11 of the T rib 1 can be fixed in the rectangular groove 433; then, the driving roller 62 is driven to rotate through an output shaft of the asynchronous motor 61, the driving roller 62 rotates to drive the driving chain wheel 63 to rotate, the driving chain wheel 63 rotates to drive the chain 66 to rotate, the chain 66 rotates to drive the driving block 67 to move, and the driving block 67 moves to drive the base 3 to move, so that the opening of the T rib 1 is positioned below the grinding wheel 53; then, the grinding motor 52 is started, and at the moment, the output shaft of the grinding motor 52 drives the grinding wheel 53 to rotate; then, the piston rod of the vertical moving cylinder 41 drives the movable frame 42 to move upwards, the movable frame 42 moves upwards to drive the T rib 1 to move upwards, the T rib 1 moves upwards to enable the cut-out of the T rib 1 to be in contact with the polishing wheel 53, and therefore the cut-out of the T rib 1 can be polished; after the opening of the T-rib 1 on one base 3 is polished, the piston rod of the vertical moving cylinder 41 drives the movable frame 42 to return, and then the other base 3 is driven by the chain 66 to move, so that the T-rib 1 on the other base 3 is polished.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a steel box girder T rib cuts open grinding device, includes frame (2), its characterized in that: the device comprises a rack (2), a plurality of bases (3) are connected to the rack (2) in a sliding mode along the length direction of the rack, a fixing mechanism (4) used for fixing a bottom plate (11) is installed on each base (3), and each fixing mechanism (4) comprises a plurality of vertical moving cylinders (41) vertically installed on each base (3), a movable frame (42) installed on piston rods of the plurality of vertical moving cylinders (41) and two groups of fixing assemblies (43) symmetrically arranged at two ends of each movable frame (42); the rack (2) is provided with a driving mechanism (6) for driving the plurality of bases (3) to move; the grinding mechanism (5) is arranged on the rack (2), and the grinding mechanism (5) comprises a grinding frame (51) fixedly connected to the top of the rack (2), a grinding motor (52) horizontally arranged on one side of the grinding frame (51) and a grinding wheel (53) sleeved and fixed on an output shaft of the grinding motor (52); the axial direction of the grinding wheel (53) is parallel to the width direction of the frame (2); each group of fixed assemblies (43) comprises a first transverse moving cylinder (431) horizontally arranged on the movable frame (42), a movable block (432) fixedly connected to a piston rod of the first transverse moving cylinder (431), a rectangular groove (433) arranged on the movable block (432) and far away from the first transverse moving cylinder (431), a second transverse moving cylinder (434) horizontally arranged on the movable frame (42) and a triangular block (435) fixedly connected to a piston rod of the second transverse moving cylinder (434); one end of the rectangular groove (433), which is close to the triangular block (435), is provided with a gap (436), the triangular block (435) is arranged corresponding to the gap (436), and a blocking component (44) for blocking the bottom plate (11) is arranged on the rectangular groove (433); the movable block (432) and the triangular block (435) slide back to back or oppositely along the width direction of the rack (2); the blocking assembly (44) comprises a first blocking block (441) fixedly connected to one side of the rectangular groove (433), a second blocking block (442) fixedly connected to the other side of the rectangular groove (433), a square bolt (443) connected to the first blocking block (441) in a sliding manner along the length direction of the rack (2), a round block (444) sleeved and fixed on the square bolt (443), a blocking spring (445) sleeved on the square bolt (443), and a jack (446) arranged at one side, close to the first blocking block (441), of the second blocking block (442); one end of the square bolt (443) penetrates through the first stop block (441) and is inserted into the insertion hole (446), the other end of the square bolt is fixedly connected with a handle (447), and the bottom of the square bolt (443) abuts against the top of the bottom plate (11); the handle (447) is arranged close to one side of the first block (441) far away from the second block (442), and the round block (444) is arranged between the first block (441) and the handle (447); two ends of the blocking spring (445) are respectively and fixedly connected with the first stop block (441) and the round block (444), and the movable block (432) is provided with a yielding groove (448) for the movement of the blocking spring (445); a supporting component (7) for supporting a vertical plate (12) is installed on one side, away from the triangular block (435), of the second transverse moving cylinder (434), and the supporting component (7) comprises a connecting block (71) fixedly connected to one side, away from the vertical moving cylinder (41), of the movable frame (42), a vertical sliding groove (72) formed in the top of the connecting block (71), a supporting block (73) connected to the vertical sliding groove (72) in a sliding mode along the vertical direction, and a supporting spring (74) abutted to the bottom of the supporting block (73); an inclined surface (75) is arranged at the top of the supporting block (73), and the inclined surface (75) abuts against one side surface of the vertical plate (12); one end of the supporting spring (74) far away from the supporting block (73) is abutted to the bottom of the vertical sliding groove (72).

2. The grinding device for the T-rib section of the steel box girder according to claim 1, is characterized in that: the driving mechanism (6) comprises an asynchronous motor (61) horizontally arranged on the side wall of one end of the rack (2), a driving roller (62) rotationally connected to one end of the rack (2), two driving chain wheels (63) respectively sleeved and fixed at two ends of the driving roller (62), a driven roller (64) rotationally connected to one end of the rack (2) far away from the driving roller (62), two driven chain wheels (65) respectively sleeved and fixed at two ends of the driven roller (64) and two chains (66) respectively rotationally connected to two sides of the rack (2) and parallel to each other; an output shaft of the asynchronous motor (61) penetrates through the rack (2) along the width direction of the rack (2) and is fixedly connected with one end of the driving roller (62); the chain (66) enables the driving chain wheel (63) and the driven chain wheel (65) to be linked; a plurality of driving blocks (67) are arranged on each chain (66) along the length direction of the chain, and two ends of the base (3) are respectively fixedly connected with the two driving blocks (67) which are arranged on different chains (66) and are opposite to each other.

3. The grinding device for the T-rib section of the steel box girder according to claim 2, is characterized in that: square guide rails (21) are fixedly connected to two sides of the rack (2), and the two square guide rails (21) are arranged along the length direction of the rack (2); square spout (31) have all been seted up at the both ends of base (3) bottom, the both ends of base (3) are slided respectively through two square spout (31) and are connected in two square guide rail (21).

4. The grinding device for the T-rib section of the steel box girder according to claim 1, is characterized in that: the chip suction mechanism (8) for collecting chips is arranged on the grinding frame (51), and the chip suction mechanism (8) comprises a chip suction cover (81) fixedly connected to the grinding frame (51) and a fan (82) arranged outside the frame (2); an air inlet of the fan (82) is communicated with the top of the scrap suction cover (81) through a pipeline; and a material receiving assembly (83) is arranged on an air outlet of the fan (82).

5. The grinding device for the T-rib section of the steel box girder according to claim 4, is characterized in that: the material receiving assembly (83) comprises a cyclone separator (831) arranged outside the rack (2), an air inlet pipe (832) communicated with one side of the cyclone separator (831), an air outlet pipe (833) communicated with the top of the cyclone separator (831), a filter (834) arranged on the air outlet pipe (833), a material outlet pipe (835) communicated with the bottom of the cyclone separator (831) and a collecting box (836) arranged below the material outlet pipe (835); one end of the air inlet pipe (832) far away from the cyclone separator (831) is communicated with an air outlet of the fan (82).