CN111705663A - Support bracket is used in public road bridge roof beam construction - Google Patents
Support bracket is used in public road bridge roof beam construction Download PDFInfo
- Publication number
- CN111705663A CN111705663A CN202010495116.2A CN202010495116A CN111705663A CN 111705663 A CN111705663 A CN 111705663A CN 202010495116 A CN202010495116 A CN 202010495116A CN 111705663 A CN111705663 A CN 111705663A
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- Prior art keywords
- plate
- fixedly connected
- supporting
- frame
- bevel gear
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
- E04G25/065—Shores or struts; Chocks telescopic with parts held together by positive means by a threaded nut
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G2025/006—Heads therefor, e.g. pivotable
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a highway bridge support frame with a stable gravity center, which comprises a support base, a lifting device arranged at the upper end of the support base, a support top frame arranged right above the lifting device, an adjusting device connected between the lifting device and the support top frame, and a hydraulic pump station for providing power for the support base, the lifting device and the support top frame, wherein the support base has a contraction state and an extension state; the supporting top frame is in a contraction state and an extension state, and the maximum section of the supporting base is larger than that of the supporting top frame; the supporting base, the lifting device and the supporting top frame are arranged on the same axis. The small bottom plate contracted on the circumference of the bottom plate extends out along the circumferential direction under the action of the hydraulic oil cylinder, the contact area between the bottom plate of the support frame and the ground is increased, the support frame is more stable, and the small bottom plate is contracted in a non-working state, so that the support frame is convenient to transport and carry.
Description
Technical Field
The invention relates to highway bridge construction equipment, in particular to a support bracket for highway bridge construction.
Background
When a highway line passes through regions such as rivers, lakes and the like or crosses other traffic lines, bridges need to be erected in order to keep smooth traffic, the bridge erecting region can be a viaduct in urban development, and the roadside of a construction site is generally a painted smooth pavement; and construction of rivers, lakes or mountains is also involved, and due to instability of geological structures, the ground is mostly loose soil or silt.
The bridge construction divide into bridge substructure construction, bridge superstructure construction, beam bridge construction three aspect, wherein bridge superstructure construction and beam bridge construction all need go on more than the pier, be the beam bridge construction by it and simply prop up the girder bridge, concrete connection beam bridge etc. to supporting the machine demand of connecting big, traditional construction method is for directly carrying out the monolithic stationary with the girder steel support, and the process is loaded down with trivial details, and need invest a large amount of manpowers, mechanical equipment.
The support frames for bridge construction in the prior art are mostly suitable for leveling the ground and are unstable when placed on sandy soil ground, so that the support effect is influenced and even accidents are caused.
In the prior art, because the support frame used for bridge construction needs to extend to the upper part of a bridge pier, a chassis of the support frame needs to be enlarged to stabilize the gravity center of the support frame after the support frame is lifted, the support points of heavy objects such as a supported concrete beam bridge need to be aligned to the gravity center position of the loaded heavy object as much as possible, and the visual distance of field operation is long, the adjustment work of equipment is increased, and the work efficiency of construction is not easy to improve; in addition, the supporting frame chassis in the prior art is large, the transportation is inconvenient, the area of the supporting bridge is small, more supporting frames need to be placed for supporting, heavy equipment needing to be carried in construction is increased, and the construction cost is high.
Disclosure of Invention
The invention aims to provide a highway construction support frame aiming at solving the defects of complicated support connection process and inconvenient carrying of a support machine in the existing bridge construction.
In order to achieve the purpose, the invention adopts the following technical scheme: the lifting device is arranged at the upper end of the supporting base, the supporting top frame is arranged right above the lifting device, the adjusting device is connected between the lifting device and the supporting top frame, and the pump station is used for providing power for the supporting base, the lifting device and the supporting top frame;
the supporting base, the lifting device and the supporting top frame are arranged on the same axis.
Further:
the supporting base comprises a supporting bottom plate, a supporting base plate arranged right above the supporting bottom plate, a pillar fixedly connected between the supporting bottom plate and the supporting base plate, an oil cylinder fixedly connected to the upper end face of the supporting base plate, a movable frame fixedly connected to a piston rod of the oil cylinder, a push rod hinged to the movable frame, a connecting rod with one end rotatably connected to the push rod and a movable plate rotatably connected to the other end of the connecting rod;
the movable frame is a disc body;
a rectangular groove penetrating through the thickness direction of the movable frame is formed along the outer circumference of the movable frame;
cylindrical pins penetrate through two side faces in the rectangular grooves;
the push rod is hinged with the cylindrical pin;
the rectangular grooves are uniformly distributed on the outer circumference of the movable frame;
the supporting base further comprises a sliding rail fixedly connected to the upper surface of the supporting base and a sliding block connected in the sliding rail in a sliding manner;
the sliding block is fixedly connected with one end of the connecting rod;
the sliding rails are circumferentially distributed on the supporting bottom plate;
the connecting rods, the push rods, the sliding rails, the sliding blocks and the movable plates are in one-to-one correspondence in quantity; the lifting device is arranged on the support plate.
Further:
the oil cylinder is a two-stage telescopic oil cylinder,
the supporting base further comprises a ground nail fixedly connected to the oil cylinder;
the ground nail penetrates through the supporting bottom plate.
Further:
the lifting device comprises lifting mechanisms and circular plates fixedly connected to the upper end faces of the 2 lifting mechanisms;
the lifting mechanism comprises a rotary motor fixedly connected to the support plate, a left bevel gear fixedly connected to one end of an output shaft of the rotary motor, a left bevel gear meshed with the left bevel gear, a left screw fixedly connected to the left bevel gear, a left nut meshed with the left screw and a left U-shaped frame fixedly connected to the left nut;
the rotary motor is provided with double output shafts;
the lifting device also comprises a right bevel gear fixedly connected to an output shaft at the other end of the rotary motor, a right bevel gear meshed with the right bevel gear, a right screw fixedly connected to the right bevel gear, a right nut meshed with the right screw, and a right U-shaped frame fixedly connected to the right nut;
the rotating motor is fixedly connected to the lower surface of the circular plate;
the upper plane of the left U-shaped frame and the upper plane of the right U-shaped frame are positioned on the same plane;
the upper surface of the circular plate is provided with an adjusting device.
Further:
the supporting top frame comprises a top frame bottom plate, a fixed shaft fixedly connected to the top frame bottom plate, a toothed plate rotatably connected to the fixed shaft, a support fixedly connected to the top frame bottom plate, a bevel gear motor fixedly connected to the support and a bevel gear fixedly connected to an output shaft of the bevel gear motor;
the upper end face of the toothed plate is provided with a plane thread A, the lower end face of the toothed plate is provided with a toothed ring matched with the tooth part of the bevel gear, and the toothed plate is in meshing transmission with the bevel gear;
the toothed plate is provided with a supporting movable block;
the plane thread A is a protrusion spirally arranged from the axis of the upper toothed plate to the outer circumference of the toothed plate;
the supporting moving block comprises an upper plate arranged on the upper part of the toothed plate, a lower plate arranged in the toothed plate and a connecting plate for connecting the upper plate and the lower plate;
when the upper plate is completely pulled out of the toothed plate, the lower plate is not completely pulled out;
the lower end face of the upper plate is provided with a thread B matched with the plane thread A;
the section of the plane thread A is T-shaped;
the thread B is provided with an inverted T-shaped groove matched with the plane thread A;
the top frame bottom plate is connected with the adjusting device.
Further:
the supporting top frame also comprises a locking oil cylinder fixedly connected to the upper end of the bottom plate of the top frame;
the lower plate is provided with a taper hole matched with the locking block, and the lower end surface of the upper toothed plate is provided with a through hole coaxial with the taper hole of the lower plate;
the locking oil cylinder locks the lower plate in the upper toothed plate.
Further:
the adjusting device comprises an adjusting screw for adjusting the height of the supporting top frame, an adjusting nut for locking the adjusting screw and gradienters uniformly distributed on the circumference of the disc;
the adjusting screw is fixedly connected to the top frame bottom plate;
the adjusting screw is rotationally connected to the disc;
the adjusting nut locks the adjusting screw on the upper surface of the disc.
Further:
the ground nail comprises a nail plate and a nail body fixedly connected to the lower end face of the nail plate, wherein the nail body is close to one end of the nail plate and is a cylinder, and the other end of the nail body is a cone.
Further:
and a hydraulic lock is arranged on the rotating motor.
The invention has the beneficial effects that:
the invention provides a highway bridge support frame with stable gravity center and small floor area, which is in a contraction state in a non-working state, wherein a small bottom plate contracted on the circumference of the bottom plate extends out along the circumferential direction under the action of a hydraulic oil cylinder in a working state, so that the contact area between the bottom plate of the support frame and the ground is increased, the support frame is more stable, and the small bottom plate is contracted in the non-working state, so that the transportation and the carrying are convenient.
According to the invention, the hydraulic rotary oil cylinder is used, the bevel gears drive the four screw rods to rotate, the screw rods push the nuts to move upwards, so that the supporting top frame is pushed into the lower part of the supported bridge to play a supporting role, the stably-rising screw rods and nuts are matched with the lifting device, a load can be lifted before lifting, and the use of a crane is reduced.
According to the invention, the supporting movable block capable of moving outwards from the axis of the supporting top plate is arranged on the supporting top plate, the supporting movable block is contracted above the supporting top plate when not working, and the supporting movable block extends out in a working state through rotating and sliding along the plane thread on the supporting top plate, so that the contact area of the supporting movable block contacting with a bridge can be increased, and the supporting effect is more stable.
The power source of the invention is provided by the hydraulic station, the power for providing mechanical motion is provided by the hydraulic cylinder, the invention has the advantages that the output power of the hydraulic device is stable, the hydraulic device is suitable for the field of heavy loads, the mechanical locking device is cancelled, and the hydraulic cylinder is provided with the hydraulic lock which can ensure that a supporting object can not fall for a long time.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a support base according to the present invention;
FIG. 3 is a perspective view of the support base of the present invention;
FIG. 4 is a schematic structural view of a movable frame according to the present invention;
FIG. 5 is a schematic structural view of the lifting device of the present invention;
FIG. 6 is a schematic structural view of a supporting top frame according to the present invention;
FIG. 7 is a schematic cross-sectional view of the engagement of the supporting moving block and the upper toothed plate according to the present invention;
FIG. 8 is a perspective view of the present invention in a contracted state;
fig. 9 is a perspective view of the present invention in an extended state.
In the drawings: 1. a support base; 2. a lifting device; 3, adjusting the nut; 4. an adjusting screw; 5. supporting the top frame; 11. a base plate; 12. a support plate; 13. a pillar; 14. a movable frame; 15. a push rod; 16. A connecting rod; 17. a movable plate; 18. a ground nail; 19. an oil cylinder; 111. a slider; 112. a slide rail; 201. A rotary hydraulic cylinder; 202. a left bevel gear; 203. a left second bevel gear; 204. a left screw; 205. a left nut; 206. a left U-shaped frame; 207. a right bevel gear; 208. a right second bevel gear; 209. A right screw; 210. a right nut; 211. a right U-shaped frame; 212. a disc; 501. a top frame bottom plate; 502. a bevel gear; 503. a support; 504. a bevel gear motor; 505. a fixed shaft; 506. an upper toothed plate; 507. supporting the movable block; 180. nailing a plate; 182. a nail body.
Detailed Description
It is to be understood that the terms "length," "width," "upper," "lower," "left," "right," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings for convenience in describing the present invention and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as illustrative of the present invention.
The present invention will now be described in detail with reference to the drawings, wherein the specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting. Hereinafter, the bridge to be supported will be collectively referred to as a supported object for the sake of brief description.
As shown in the attached drawing 1, the invention provides a highway construction support frame, which comprises a support base 1, a lifting device 2 arranged at the upper end of the support base 1, a support top frame 5 arranged right above the lifting device 2 and a hydraulic pump station for providing power for the support base 1, the lifting device 2 and the support top frame 5, wherein the centers of gravity of the support base 1, the lifting device 2 and the support top frame 5 are arranged on one axis.
The working process is that the supporting base 1 is placed on the ground, the hydraulic pump station controls the power element, and the lifting device 2 jacks the supporting top frame 5 to a supporting position below the supported object.
As shown in fig. 2, 3 and 4, the supporting base 1 includes a bottom plate 11, a support plate 12 disposed right above the bottom plate 11, a pillar 13 welded between the bottom plate 11 and the support plate 12, an oil cylinder 19 bolted to the upper end surface of the support plate 12, and a movable frame 14 bolted to the piston rod of the oil cylinder 19, wherein the movable frame 14 is provided with 5 rectangular grooves 141 distributed circumferentially; the rectangular groove 141 is U-shaped, and cylindrical pins 142 perpendicular to the side surface of the rectangular groove 141 are welded in the rectangular groove 141; the cylindrical pin 142 is far away from the axle center of the movable frame 14 and is arranged on the cylindrical pin 142
A push rod 15 is hinged, two round holes are formed in two sides of the push rod 15, one of the round holes is hinged to the cylindrical pin 142, the other end of the push rod is hinged to a connecting rod 16, the connecting rod 16 is cuboid, a circular truncated cone which is matched with the other round hole in the push rod 15 in the opposite direction is arranged at one end of the connecting rod 16, the connecting rod 16 is hinged to the round hole in the push rod 15 through the circular truncated cone, and a movable plate 17 is fixedly connected to the other; the push rod 15 is hinged with the cylindrical pin 142; the quantity of the push rods 15, the connecting rods 16 and the movable frame 14 is 5. The bottom plate 11 further comprises slide rails 112 which are circumferentially and uniformly distributed on the bottom plate 11, the slide rails 112 are welded on the bottom plate 11, dovetail grooves are formed in the slide rails 112, slide blocks 111 are slidably connected in the dovetail grooves of the slide rails 112, and the slide blocks 111 are fixed with the circular truncated cone bolts on the connecting rods 16. The movable plate 17 is a sector.
The working process is as follows: when the supporting base 11 is placed on the ground right below the supported object, the oil cylinder 19 is controlled by a switch or a button in the hydraulic station, so that the piston rod of the oil cylinder extends downwards, the movable plate 17 fixedly connected with the piston rod of the oil cylinder moves downwards, meanwhile, the 5 push rods 15 which are distributed on the circumference and hinged on the movable plate 17 move downwards, because the connecting rod 16 hinged at the other end of the push rod 15 is fixedly connected with the sliding block 112 sliding on the sliding rail 112, the height change of the push rod 15 is limited, the sliding block 112 moves towards the direction far away from the axis of the supporting base 1 while the distance between the movable plate 17 and the sliding block 112 is gradually shortened, and therefore the 5 movable plates 17 are driven to move towards the direction far away from the axis of the supporting base 1, and the contact area between the. The function of stabilizing the support frame is achieved. The movable plate 17 is a sector, and the support frame is attached to the outer surface of the bottom plate 11 when being contracted, so that the space of a construction site is saved when the support frame is not used.
As shown in fig. 2 and 3, the oil cylinder 19 is a two-stage telescopic oil cylinder, and the support base 1 further includes a ground nail 18 fixedly connected to a two-stage piston rod of the oil cylinder 19; the ground pin 18 penetrates the bottom plate 11.
The working process is as follows: on soft soil, the support frame cannot work stably, the oil cylinder 19 is designed into a secondary telescopic oil cylinder, and a piston rod of the secondary oil cylinder pushes the ground nail 18 into the loosened soil, so that the stability of the support frame is improved. When the urban paint road construction is carried out, the secondary oil cylinder piston rod of the corresponding button or switch control oil cylinder 19 in the hydraulic station extends out to drive the ground nail 18 to be pushed to the ground, the machine is lifted above the ground, the primary piston rod of the corresponding button or switch control oil cylinder 19 in the hydraulic station extends out to realize the extending state of the movable plate 17, and the secondary oil cylinder piston rod of the corresponding button or switch control oil cylinder 19 in the hydraulic station contracts to place the support base 1 on the ground.
As shown in fig. 5, the lifting device includes 2 lifting mechanisms symmetrical with respect to the axis of the base 1 and a circular plate 212 fixedly connected to the upper end surface of the lifting mechanism, the lifting mechanism includes a rotary motor 201 fixedly connected to the support plate 12, the rotary motor 201 adopted in the present invention is a hollow rotary hydraulic cylinder, the output shafts of both ends of which rotate simultaneously and are respectively a first output shaft and a second output shaft, a left bevel gear 202 fixedly connected to the first output shaft, a left bevel gear 203 engaged with the left bevel gear 202, a left screw 204 fixedly connected to the left bevel gear 203, a left nut 205 engaged with the left screw 204, and a left U-shaped frame 206 fixedly connected to the left nut; the lifting device 2 further comprises a right first bevel gear 207 which is in key connection with a second output shaft of the rotating motor 201, a right second bevel gear 208 which is in meshing connection with the right first bevel gear 207, a right screw 209 which is fixedly connected with the right second bevel gear 208, a right nut 210 which is in meshing connection with the right screw 209, and a right U-shaped frame 211 which is fixedly connected with the right nut 210; the rotary motor 201 is fixedly connected to the lower surface of the circular plate 212, and a circular truncated cone with a diameter larger than that of the left nut 205 is arranged on the upper surface of the left screw 204 and prevents the left nut 205 from falling off the left screw 204; the upper end face of the right screw 209 is provided with a circular truncated cone with the diameter larger than that of the right nut 210, and the circular truncated cone prevents the right nut 210 from being separated from the right screw 209.
The working process is as follows: after the rotating motor 201 is started, output shafts at two ends of the rotating motor rotate simultaneously and are respectively a first output shaft and a second output shaft, the first output shaft is in key connection with a left bevel gear 202, the second output shaft is in key connection with a right bevel gear 207, the left bevel gear 202 is in meshing transmission with the left bevel gear 203, the right bevel gear 208 is in meshing transmission with the right bevel gear 207, the left bevel gear 202 is in key connection with a left screw 204, the right bevel gear 207 is in key connection with a right screw 209, the left screw 204 and the right screw 209 are driven to rotate simultaneously, the left nut 205 is in transmission connection with the left screw 204, and the left nut 205 is in bolt connection with a left U-shaped frame 206; the right nut 210 is connected to the right screw 209 in a transmission mode, the right nut 209 is connected with the right U-shaped frame 211 through a bolt, the left U-shaped frame 206 and the right U-shaped frame 211 are connected with the part workbench through bolts, and the left U-shaped frame 206 and the right U-shaped frame 211 drive the part workbench to move upwards through transmission of the screws and the nuts. The double-screw transmission is adopted, so that the component workbench is stable when lifted, and the change of the levelness of the component workbench is small. Two symmetrical lifting mechanisms are adopted to output 2 left U-shaped frames 206 and 2 right U-shaped frames 211, and the four points support the top frame to be symmetrical relative to the supporting base 1, so that the gravity center is not shifted.
As shown in fig. 6 and 7, the supporting top frame 5 includes a top frame bottom plate 501, a fixed shaft 505 fixedly connected to the top frame bottom plate 501, a toothed plate 506 rotatably connected to the fixed shaft 505, a support 503 fixedly connected to the top frame bottom plate 501, a bevel gear motor 504 fixedly connected to the support 503, and a bevel gear 502 fixedly connected to an output shaft of the bevel gear motor 504; the upper end face of the toothed plate 506 is provided with a plane thread A, the lower end face of the toothed plate 506 is provided with a toothed ring matched with the tooth part of the bevel gear 502, and the toothed plate 506 is in meshing transmission with the bevel gear 502;
the toothed plate 506 is provided with a supporting movable block 507; the plane thread a is a protrusion spirally arranged from the axis of the upper toothed plate 506 to the outer circumference of the toothed plate 506; the supporting moving block 507 comprises an upper plate 511 disposed on the upper portion of the tooth plate 506, a lower plate 512 disposed in the tooth plate 506, and a connecting plate 513 connecting the upper plate 511 and the lower plate 512; when the upper plate 511 is completely pulled out of the toothed plate 506, the lower plate 512 is not completely pulled out; the lower end face of the upper plate 511 is provided with a thread B matched with the plane thread A; the section of the plane thread A is T-shaped; the thread B is provided with an inverted T-shaped groove matched with the plane thread A; the top frame bottom plate 501 is connected with the adjusting device.
The supporting top frame 5 comprises a top frame bottom plate 501, a fixed shaft 505 fixedly connected to the top frame bottom plate 501, a toothed plate 506 rotatably connected to the fixed shaft 505, a support 503 fixedly connected to the top frame bottom plate 501, a bevel gear motor 504 fixedly connected to the support 503, and a bevel gear 502 fixedly connected to a piston rod of the bevel gear motor 504; the upper end face of the upper toothed plate 506 is provided with a plane thread A, the lower end face of the toothed plate 506 is provided with a circular ring tooth form matched with the tooth part of the bevel gear 502, and the toothed plate 506 is in meshing transmission with the bevel gear 502; the toothed plate 506 is provided with a supporting movable block 507; the plane thread a is a protrusion spirally arranged from the axis of the upper toothed plate 506 to the outer circumference of the upper toothed plate 506; the supporting moving block 507 comprises an upper plate 511 arranged on the upper part of the upper toothed plate 506, a lower plate 512 arranged in the upper toothed plate 506 and a connecting plate 513 connecting the upper plate 511 and the lower plate 512; in the direction of the height of the upper toothed plate 506, a groove matched with the lower plate 512 is arranged, and the upper and lower gaps between the groove and the lower plate 512 are 0.2-0.5 mm. (ii) a The lower end face of the lower plate 512 is provided with a thread B matched with the plane thread; the section of the plane thread A is T-shaped; the thread B is provided with an inverted T-shaped groove matched with the plane thread A; the thread pitch of the plane thread A is equal to that of the thread pitch of the plane thread B, and the surface area of the lower plate 512 is larger than that of the upper plate 511. The top frame bottom plate 501 and the supporting bottom plate 11 have the same axle center, and the top frame bottom plate 501 and the upper toothed plate 506 have the same axle center.
The working process is as follows: before the lifting mechanism is lifted upwards, a bevel gear motor 504 corresponding to the hydraulic station is started, when the bevel gear motor 504 rotates forwards, a disc bevel gear 502 rotates, the disc bevel gear 502 is meshed with a toothed plate 506 to drive the toothed plate 506 to rotate along the axis of a fixed shaft 505, a plane thread A located on the back face of the upper toothed plate 506 rotates, the plane thread A is in an Archimedes spiral shape, and through the meshing of the plane thread A and a thread B, 5 supporting moving blocks 507 uniformly distributed on the upper toothed plate 506 move along the spiral line of the plane thread A and away from the axis of the upper toothed plate 506 at the same time, so that the extending state is realized. When the bevel gear motor 504 rotates in the opposite direction, the supporting moving blocks 507 uniformly distributed on the upper toothed plate 506 move towards the axis of the upper toothed plate 506 in the same transmission process, thereby realizing the contraction state.
The supporting top frame 5 further comprises a locking oil cylinder 509 fixedly connected to the upper end of the top frame bottom plate 501, and a locking block 510 fixedly connected to the locking oil cylinder 509; the locking block 510 is a truncated cone; the lower plate 512 is provided with a taper hole which is matched with the locking block 510 in the axial direction, and the lower end surface of the upper toothed plate 506 is provided with a through hole which is coaxial with the taper hole of the lower plate 512;
the locking block 510 is coaxial with the lower plate 512. For safety, a locking hole is formed in a lower plate 512 extending out of the supporting movable block 507, when the supporting movable block 507 extends out, the thread B is meshed with the plane thread A for at least 2 circles, at the moment, the bevel gear motor 504 stops rotating, a starting button corresponding to a locking oil cylinder 509 in a hydraulic oil station is pressed, a piston rod of the locking oil cylinder 509 extends out, the locking block 510 is pushed into a conical hole of the supporting movable block 507, and the supporting movable block 507 is limited from extending out. Ensuring that the supported object does not move.
As shown in fig. 1, the invention further comprises an adjusting screw 4 for adjusting the height of the supporting top frame 5, an adjusting nut 3 for locking the adjusting screw 4, and gradienters uniformly distributed on the circumference of the disc 212; the adjusting screw 4 is fixedly connected to the top frame bottom plate 501; the adjusting nut 3 locks the adjusting screw 4 with the upper surface of the disc 212; the adjusting screws 4 are evenly distributed on the supporting top frame 5 in the circumference. On soft soil, after the local nail 18 is fixed, whether the leveling is carried out or not can be judged according to the level gauge on the disc 212, and the adjusting screw 4 can be adjusted through a manual wrench, so that the machine is guaranteed to be placed flatly.
As shown in fig. 2, the ground nail 18 includes a nail plate 181 and a nail body 182 fixedly connected to a lower end surface of the nail plate 181, one end of the nail body 182 is a cylinder, and the other end of the nail body 182 is a cone. The cone on the nail body 182 is evenly distributed with truncated cones on the circumference. The reason for providing the truncated cone is to facilitate burying the truncated cone in the ground.
The rotary motors 201 are each provided with a hydraulic lock. The cylinder 19 and bevel gear motor 504 are also provided with hydraulic locks.
While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various modifications, changes, substitutions and alterations can be made to the embodiments without departing from the principles of the present invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a highway construction support frame which characterized in that:
the device comprises a supporting base (1), a lifting device (2) arranged at the upper end of the supporting base (1), a supporting top frame (5) arranged right above the lifting device (2), an adjusting device connected between the lifting device (2) and the supporting top frame (5), and a pump station for providing power for the supporting base (1), the lifting device (2) and the supporting top frame (5);
the supporting base (1), the lifting device (2) and the supporting top frame (5) are arranged on the same axis.
2. The road construction support frame of claim 1, wherein:
the supporting base (1) comprises a supporting base plate (11), a supporting base plate (12) arranged right above the supporting base plate (11), a supporting column (13) fixedly connected between the supporting base plate (11) and the supporting base plate (12), an oil cylinder (19) fixedly connected to the upper end face of the supporting base plate (12), a movable frame (14) fixedly connected to a piston rod of the oil cylinder (19), a push rod (15) hinged to the movable frame (14), a connecting rod (16) with one end rotatably connected to the push rod (15) and a movable plate (17) rotatably connected to the other end of the connecting rod (16);
the movable frame (14) is a disc body;
a rectangular groove (141) penetrating through the thickness direction of the movable frame (14) is formed along the outer circumference of the movable frame (14);
cylindrical pins (142) are connected to two side surfaces in the rectangular grooves (141) in a penetrating manner;
the push rod (15) is hinged with the cylindrical pin (142);
the rectangular grooves (141) are uniformly distributed on the outer circumference of the movable frame (14);
the supporting base (11) further comprises a sliding rail (112) fixedly connected to the upper surface of the supporting base (11) and a sliding block (111) connected in the sliding rail (112) in a sliding manner;
the sliding block (111) is fixedly connected with one end of the connecting rod (16);
the sliding rails (112) are circumferentially distributed on the supporting bottom plate (11);
the connecting rods (16), the push rods (15), the sliding rails (112), the sliding blocks (111) and the movable plates (17) are in one-to-one correspondence;
the lifting device (2) is arranged on the support plate (12).
3. The road construction support frame of claim 2, wherein:
the oil cylinder (19) is a two-stage telescopic oil cylinder,
the supporting base (1) also comprises a ground nail (18) fixedly connected to the oil cylinder (19);
the ground nail (18) penetrates through the support bottom plate (11).
4. The road construction support frame of claim 2, wherein:
the lifting device (2) comprises lifting mechanisms and circular plates (212) fixedly connected to the upper end faces of the 2 lifting mechanisms;
the lifting mechanism comprises a rotary motor (201) fixedly connected to the support plate (12), a left bevel gear (202) fixedly connected to one end of an output shaft of the rotary motor (201), a left bevel gear (203) meshed and connected to the left bevel gear (202), a left screw (204) fixedly connected to the left bevel gear (203), a left nut (205) meshed and connected to the left screw (204), and a left U-shaped frame (206) fixedly connected to the left nut;
the rotary motor (201) is provided with double output shafts;
the lifting device (2) further comprises a right first bevel gear (207) fixedly connected to an output shaft at the other end of the rotary motor (201), a right second bevel gear (208) in meshed connection with the right first bevel gear (207), a right screw (209) fixedly connected to the right second bevel gear (208), a right nut (210) in meshed connection with the right screw (209), and a right U-shaped frame (211) fixedly connected to the right nut (210);
the rotary motor (201) is fixedly connected to the lower surface of the circular plate (212);
the upper plane of the left U-shaped frame (206) and the upper plane of the right U-shaped frame (211) are positioned on the same plane;
the upper surface of the circular plate (212) is provided with an adjusting device.
5. The road construction support frame of claim 1, wherein:
the supporting top frame (5) comprises a top frame bottom plate (501), a fixed shaft (505) fixedly connected to the top frame bottom plate (501), a toothed plate (506) rotatably connected to the fixed shaft (505), a support (503) fixedly connected to the top frame bottom plate (501), a bevel gear motor (504) fixedly connected to the support (503), and a bevel gear (502) fixedly connected to an output shaft of the bevel gear motor (504);
the upper end face of the toothed plate (506) is provided with a plane thread A, the lower end face of the toothed plate (506) is provided with a toothed ring matched with the tooth part of the bevel gear (502), and the toothed plate (506) is in meshing transmission with the bevel gear (502);
a supporting moving block (507) is arranged on the toothed plate (506);
the plane thread A is a protrusion spirally arranged from the axis of the upper toothed plate (506) to the outer circumference of the toothed plate (506);
the supporting moving block (507) comprises an upper plate (511) arranged at the upper part of the toothed plate (506), a lower plate (512) arranged in the toothed plate (506) and a connecting plate (513) connecting the upper plate (511) and the lower plate (512);
when the upper plate (511) is completely pulled out of the toothed plate (506), the lower plate (512) is not completely pulled out;
the lower end face of the upper plate (511) is provided with a thread B matched with the plane thread A;
the section of the plane thread A is T-shaped;
the thread B is provided with an inverted T-shaped groove matched with the plane thread A;
the top frame bottom plate (501) is connected with the adjusting device.
6. The road construction support frame of claim 5, wherein:
the supporting top frame (5) further comprises a locking oil cylinder (509) fixedly connected to the upper end of the top frame bottom plate (501);
the lower plate (512) is provided with a taper hole matched with the locking block (510), and the lower end surface of the upper toothed plate (506) is provided with a through hole coaxial with the taper hole of the lower plate (512);
the locking oil cylinder (509) locks the lower plate (512) in the upper toothed plate (506).
7. A road construction support frame as claimed in claim 4 or 5, wherein:
the adjusting device comprises adjusting screws (4) for adjusting the height of the supporting top frame (5), adjusting nuts (3) for locking the adjusting screws (4) and gradienters uniformly distributed on the circumference of the disc (212);
the adjusting screw (4) is fixedly connected to the top frame bottom plate (501);
the adjusting screw (4) is rotationally connected to the disc (212);
the adjusting screw (4) is locked on the upper surface of the disc (212) by the adjusting nut (3).
8. A road construction support frame as claimed in claim 3, wherein:
the ground nail (18) comprises a nail plate (181) and a nail body (182) fixedly connected to the lower end face of the nail plate (181), one end, close to the nail plate (181), of the nail body (182) is a cylinder, and the other end of the nail body (182) is a cone.
9. The road construction support frame of claim 4, wherein:
the rotary motor (201) is provided with a hydraulic lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010495116.2A CN111705663A (en) | 2020-06-03 | 2020-06-03 | Support bracket is used in public road bridge roof beam construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010495116.2A CN111705663A (en) | 2020-06-03 | 2020-06-03 | Support bracket is used in public road bridge roof beam construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111705663A true CN111705663A (en) | 2020-09-25 |
Family
ID=72538838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010495116.2A Withdrawn CN111705663A (en) | 2020-06-03 | 2020-06-03 | Support bracket is used in public road bridge roof beam construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111705663A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106881A (en) * | 2021-05-27 | 2021-07-13 | 中交投资咨询(北京)有限公司 | Steel structure bridge reinforcing device |
| CN114561879A (en) * | 2022-02-23 | 2022-05-31 | 博信达建设集团有限公司 | A simply hang basket for bridge construction |
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| CN207436543U (en) * | 2017-11-22 | 2018-06-01 | 李光军 | Novel building ergonomic support device |
| CN208073031U (en) * | 2018-03-12 | 2018-11-09 | 赵海晓 | A kind of supporting rack for building facilitating support |
| CN108858043A (en) * | 2018-05-31 | 2018-11-23 | 中煤科工集团西安研究院有限公司 | Rubber oild chuck slips installation tool and installation method |
| CN209602961U (en) * | 2019-01-04 | 2019-11-08 | 山西路桥建设集团有限公司 | A kind of supporting bracket of bridge construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100769999B1 (en) * | 2006-08-02 | 2007-10-25 | 깨뱉시스템주식회사 | Improved support, self-supported improved support and system form using the same |
| CN207436543U (en) * | 2017-11-22 | 2018-06-01 | 李光军 | Novel building ergonomic support device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113106881A (en) * | 2021-05-27 | 2021-07-13 | 中交投资咨询(北京)有限公司 | Steel structure bridge reinforcing device |
| CN114561879A (en) * | 2022-02-23 | 2022-05-31 | 博信达建设集团有限公司 | A simply hang basket for bridge construction |
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Application publication date: 20200925 |
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