CN115196501A

CN115196501A - Bridge beam assembling and hoisting equipment

Info

Publication number: CN115196501A
Application number: CN202211112709.1A
Authority: CN
Inventors: 祁斌
Original assignee: Xuzhou Dongyi New Material Co ltd
Current assignee: Xuzhou Dongyi New Material Co ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2022-10-18

Abstract

The invention belongs to the technical field of bridge construction, and particularly relates to bridge beam assembling and hoisting equipment which comprises a travelling mechanism matched with a plurality of suspension cables, wherein two lifting mechanisms which correspond to each other from left to right are arranged at the bottom of the travelling mechanism, a lifting table is jointly arranged at the end parts of lifting ropes in the two lifting mechanisms, and two aligning mechanisms are arranged on the bottom surface of the lifting table. When the device is used for hoisting the cross beam, the cross beam does not need to be aligned manually, an operator only needs to install the single cross beam on the aligning mechanism at the end part of the bridge, the walking mechanism can drive the cross beam to reach the assembling position, the aligning mechanism can adjust the position of the cross beam, so that the threaded holes in the cross beam and the longitudinal beam are in an axis coincidence state, and in the process of adjusting the position of the cross beam, the aligning mechanism cannot generate an axial acting force along the threaded holes with the threaded holes in the cross beam and the longitudinal beam, so that the situation that threads in the threaded holes are damaged due to friction is avoided.

Description

Bridge beam assembling and hoisting equipment

Technical Field

The invention belongs to the technical field of bridges, and particularly relates to bridge beam assembling and hoisting equipment.

Background

The bridge is a building constructed for a road to cross natural or artificial barriers, generally consists of five parts, namely a bridge upper structure and a bridge lower structure for bearing transportation loads of automobiles or other vehicles, and ensures the safety of the bridge structure, and comprises a bridge span structure, a bridge support system, piers, a bearing platform and pile foundations; the bridge span structure comprises a plurality of longitudinal beams and cross beams connecting the longitudinal beams together, a plurality of cross beams are arranged in one bridge span structure, the intervals between the adjacent cross beams are equal, and the cross beams are perpendicular to the longitudinal beams and are connected together through fasteners such as bolts.

For a large bridge, a large crane is usually adopted to hoist, align and assemble the cross beam when the cross beam is installed, but in construction sites with narrow width and inconvenient traffic such as rural roads and mountain roads, the large crane cannot be used when the cross beam is installed on a small bridge, stand columns can be installed at two ends of the bridge only through manpower, suspension ropes are hung through the stand columns at the two ends, and the cross beam is hoisted through the suspension ropes. After the cross beam is placed on the longitudinal beam, the cross beam needs to be aligned, so that the threaded hole in the cross beam is aligned with the threaded hole in the longitudinal beam, and the cross beam and the longitudinal beam are fastened at a later stage; the step of counterpoint is usually accomplished through the manual work, operating personnel hangs on the suspension cable with the help of the safety rope promptly, and insert the location pole and make two screwed holes align in the screwed hole that correspond on crossbeam and the longeron, when having two sets of screwed holes to align on crossbeam and the longeron, can guarantee the crossbeam accuracy of counterpointing, but in the actual operation process, because operating personnel self hangs the focus unstability on the suspension cable, the operating personnel is handheld the in-process of location pole business turn over screw hole can't guarantee the location pole along screw hole axial displacement all the time, produce the friction between the easy and the screw thread in the screwed hole of location pole, thereby lead to the screw thread impaired.

Disclosure of Invention

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a bridge beam assembles equipment of lifting by crane, include with a plurality of suspension cable complex running gear, running gear's bottom is installed two and is controlled the elevating system that corresponds, elevating system includes two fixed bolsters of installing in the running gear bottom, correspond around two fixed bolsters and set up and all rotate on every fixed bolster and install the fixed pulley, install the lifting rope around corresponding between two fixed pulleys, the adjustment mechanism who is used for adjusting the lifting rope is installed to the running gear bottom, the elevating platform is installed jointly to the tip of lifting rope among two elevating system.

The bottom surface of the lifting platform is provided with two alignment mechanisms, each alignment mechanism comprises a fixed platform fixedly arranged on the bottom surface of the lifting platform, the bottom surface of the fixed platform is provided with two first arc-shaped plates and two second arc-shaped plates in a sliding manner, the first arc-shaped plates and the second arc-shaped plates are in a vertical state, and intersecting lines of outer arc surfaces of the first arc-shaped plates and the second arc-shaped plates and the same horizontal plane can be positioned on the track of the same virtual circle; the outer cambered surfaces of the first arc-shaped plate and the second arc-shaped plate are fixedly provided with bearing blocks, and the upper surfaces of the bearing blocks are positioned in the same horizontal plane.

As a preferred technical scheme of the invention, the adjusting mechanism comprises two guide rods vertically and fixedly arranged at the bottom of the walking mechanism, an adjusting platform is jointly and slidably arranged on the two guide rods, and a bottom plate is jointly and fixedly arranged at the bottom ends of the two guide rods; the bottom of the walking mechanism is fixedly provided with an adjusting motor through a motor base, and the output end of the adjusting motor is vertically and fixedly provided with an adjusting screw rod which is in threaded fit with the adjusting platform and is in rotating fit with the bottom plate; the left and right sides of the adjusting station are both fixedly provided with pulley frames through connecting rods, and the pulley frames are rotatably provided with movable pulleys attached to the lifting ropes.

As a preferred technical scheme of the invention, the first arc-shaped plates and the second arc-shaped plates are sequentially arranged in an annular staggered manner, and the radian of the first arc-shaped plates is smaller than that of the second arc-shaped plates; a vertical shaft is rotatably arranged on the fixed table, and the first arc-shaped plate and the second arc-shaped plate slide along the radial direction of the vertical shaft; fixed mounting has first rack on the intrados of first arc, and vertical epaxial fixed mounting has the full gear with first rack toothing, and fixed mounting has the second rack on the intrados of second arc, and vertical epaxial fixed mounting has the gear that lacks with second rack toothing.

As a preferred technical scheme of the invention, a driven gear is fixedly arranged on the top of the vertical shaft, an air cylinder is fixedly arranged on the fixed platform, and a driving rack meshed with the driven gear is fixedly arranged at the end part of a telescopic section of the air cylinder.

As a preferred technical scheme of the invention, the left end and the right end of the lifting platform are respectively provided with a supporting mechanism, each supporting mechanism comprises two rotating arms which are rotatably arranged on the lifting platform, a horizontal shaft is fixedly arranged between the two rotating arms, and a carrier roller is rotatably arranged on the horizontal shaft.

As a preferred technical scheme of the invention, the rotating arm is fixedly provided with a stop block, the position of the lifting platform corresponding to each stop block is horizontally and slidably provided with a stop strip matched with the stop block, and the two stop strips are fixedly connected through a horizontal rod with a wedge-shaped section; a wedge-shaped block is vertically and slidably mounted on the end face of the lifting platform, and the inclined surface of the wedge-shaped block is attached to the inclined surface of the horizontal rod; the wedge bottom is vertical fixed mounting has a plurality of top vaulting pole, and common fixed mounting has the horizontal plate on a plurality of top vaulting pole, fixedly connected with expanding spring between horizontal plate and the elevating platform.

As a preferred technical scheme, the travelling mechanism comprises a travelling box body, driving units are arranged on the travelling box body corresponding to the positions of the suspension cables, each driving unit comprises two cylinder frames fixedly arranged on the top surface and the bottom surface of the travelling box body respectively, the two cylinder frames correspond up and down, a travelling cylinder is horizontally and fixedly arranged on each cylinder frame, a translation block is fixedly arranged at the end part of a telescopic section of the travelling cylinder, a square rod penetrating through the translation block is vertically and slidably arranged on the translation block, a clamping block is fixedly arranged at one end, close to the suspension cable, of the square rod, and a roller wheel is rotatably arranged at one end, far away from the suspension cable, of the square rod; a first return spring sleeved on the square rod is arranged between the clamping block and the translation block; the guide plate is installed on the surface of the walking box body corresponding to the position of each walking cylinder, the guide plate is inclined towards the edge of the suspension cable, and the idler wheels are attached to the inclined edges of the guide plates.

As a preferred technical scheme of the invention, a first accommodating groove is formed in the bottom surface of the clamping block positioned above the clamping block, a second accommodating groove is formed in the side wall of the first accommodating groove, a first limiting block is horizontally and slidably mounted in the second accommodating groove, and a horizontal second return spring is fixedly connected between the first limiting block and the inner wall of the second accommodating groove; a third accommodating groove corresponding to the first accommodating groove in position is formed in the top surface of the clamping block located below, a vertical strip-shaped sliding block is horizontally and slidably mounted in the third accommodating groove, and a horizontal third return spring is fixedly connected between the strip-shaped sliding block and the inner wall of the third accommodating groove; the top end of the strip-shaped sliding block is fixedly provided with a second limiting block matched with the first limiting block; the clamping block located below is provided with a through groove communicated with the third accommodating groove towards the horizontal opening of the surface of the walking box body, and the walking box body is fixedly provided with a push rod matched with the through groove towards the surface of the clamping block.

As a preferable technical scheme of the invention, the guide plate is in sliding fit with the surface of the walking box body.

As a preferred technical scheme of the invention, a plurality of rolling balls which are in rolling fit with the suspension cables are uniformly arranged on the walking box body.

The invention has at least the following beneficial effects: (1) The crossbeam lifting mechanism is suitable for lifting the crossbeam of small and medium-sized bridges in construction sites with narrow widths and inconvenient traffic, such as rural roads, mountainous roads and the like, when the crossbeam is lifted, manual operation for aligning the crossbeam is not needed, an operator only needs to install a single crossbeam on the aligning mechanism at the end part of the bridge, the walking mechanism can drive the crossbeam to reach the assembly position, the aligning mechanism can adjust the position of the crossbeam, so that threaded holes in the crossbeam and the longitudinal beam are in an axis coincidence state, and in the process of adjusting the position of the crossbeam, the aligning mechanism cannot generate an acting force along the axial direction of the threaded holes with threaded holes in the crossbeam and the longitudinal beam, so that the situation that threads in the threaded holes are damaged due to friction is avoided.

(2) In the horizontal conveying process of the cross beam, the rotating arm cannot swing towards one side far away from the cross beam, so that the effect that the supporting mechanism can stably support the cross beam is guaranteed, in the descending process of the cross beam, the rotating arm can swing towards one side far away from the cross beam, the thrust exerted on the carrier roller by the cross beam and the longitudinal beam can enable the carrier roller to be automatically separated from the bottom surface of the cross beam, a certain buffering effect is achieved on the descending process of the cross beam in the separation process of the carrier roller and the bottom surface of the cross beam, and the impact force generated when the cross beam is in contact with the longitudinal beam is reduced.

(3) The traveling mechanism can drive the lifting mechanism, the lifting platform, the aligning mechanism and the cross beam to perform equidistant and intermittent movement in the horizontal direction, and the moving distance can be adjusted, so that the cross beam can reach a preset assembling position, the pre-aligning function is realized before the aligning mechanism works, the traveling mechanism cannot move in the horizontal direction when the aligning mechanism works, and the stability of the aligning mechanism during the working is ensured.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic first perspective view of bridge beam assembling and hoisting equipment in an embodiment of the invention.

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

Fig. 3 is a schematic second perspective structure diagram of bridge beam assembling and hoisting equipment in the embodiment of the invention.

Fig. 4 is an enlarged schematic view of fig. 3 at B.

Fig. 5 is an enlarged schematic view at C in fig. 3.

Fig. 6 is a rear view of the bridge beam assembly lifting device in the embodiment of the invention.

Fig. 7 is an enlarged schematic view at D in fig. 6.

Fig. 8 is a bottom view of an alignment mechanism in an embodiment of the present invention.

Fig. 9 is a side view of the internal structure of two clamping blocks in the same driving unit according to the embodiment of the present invention.

FIG. 10 is a side view showing the internal structure of the walking box according to the embodiment of the present invention.

In the figure: 1. a traveling mechanism; 101. a traveling box body; 102. a cylinder frame; 103. a traveling cylinder; 104. a translation block; 105. a square bar; 106. a clamping block; 107. a roller; 108. a first return spring; 109. a guide plate; 110. a first accommodating groove; 111. a second accommodating groove; 112. a first stopper; 113. a second return spring; 114. a third accommodating groove; 115. a bar-shaped slider; 116. a third return spring; 117. a second limiting block; 118. a through groove; 119. a push rod; 120. rolling a ball; 2. a lifting mechanism; 201. a fixed bracket; 202. a fixed pulley; 203. a lifting rope; 3. an adjustment mechanism; 301. a guide bar; 302. an adjusting table; 303. a base plate; 304. adjusting the motor; 305. adjusting the lead screw; 306. a pulley yoke; 307. a movable pulley; 4. a lifting platform; 5. an alignment mechanism; 501. a fixed table; 502. a first arc-shaped plate; 503. a second arc-shaped plate; 504. a bearing block; 505. a vertical axis; 506. a first rack; 507. all-gear; 508. a second rack; 509. a gear is omitted; 510. a driven gear; 511. a cylinder; 512. a drive rack; 6. a support mechanism; 601. a rotating arm; 602. a horizontal axis; 603. a carrier roller; 604. a stopper; 605. blocking strips; 606. a horizontal bar; 607. a wedge block; 608. a top brace rod; 609. a horizontal plate; 610. a telescoping spring.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 3, 4, 9 and 10, the present embodiment provides a bridge beam assembly hoisting device, which includes a traveling mechanism 1 matched with a plurality of suspension cables, where the traveling mechanism 1 includes a traveling box 101, the traveling box 101 is uniformly provided with a plurality of rolling balls 120 in rolling fit with the suspension cables, a driving unit is mounted on the traveling box 101 corresponding to each suspension cable, each driving unit includes two cylinder frames 102 respectively fixedly mounted on the top surface and the bottom surface of the traveling box 101, the two cylinder frames 102 vertically correspond to each other, a traveling cylinder 103 is horizontally and fixedly mounted on each cylinder frame 102, a translation block 104 is fixedly mounted at an end of a telescopic section of the traveling cylinder 103, a square rod 105 penetrating through the translation block 104 is vertically and slidably mounted on the translation block 104, a clamping block 106 is fixedly mounted at one end of the square rod 105 close to the suspension cable, and a roller 107 is rotatably mounted at one end of the square rod 105 far from the suspension cable; a first return spring 108 sleeved on the square rod 105 is arranged between the clamping block 106 and the translation block 104; the surface of the walking box body 101 is provided with a guide plate 109 corresponding to the position of each walking cylinder 103, the edge of the guide plate 109 facing the suspension cable is inclined, and the roller 107 is attached to the inclined edge of the guide plate 109; the guide plate 109 is in sliding fit with the surface of the walking box body 101, and the guide plate 109 is controlled by the existing driving device (such as an electric slide block); a first accommodating groove 110 is formed in the bottom surface of the clamping block 106 positioned above, a second accommodating groove 111 is formed in the side wall of the first accommodating groove 110, a first limiting block 112 is horizontally and movably arranged in the second accommodating groove 111, and a horizontal second return spring 113 is fixedly connected between the first limiting block 112 and the inner wall of the second accommodating groove 111; a third accommodating groove 114 corresponding to the first accommodating groove 110 is formed in the top surface of the clamping block 106 positioned below, a vertical strip-shaped sliding block 115 is horizontally and movably arranged in the third accommodating groove 114, and a horizontal third return spring 116 is fixedly connected between the strip-shaped sliding block 115 and the inner wall of the third accommodating groove 114; a second limiting block 117 matched with the first limiting block 112 is fixedly arranged at the top end of the strip-shaped sliding block 115; a through groove 118 communicated with the third accommodating groove 114 is horizontally arranged on the surface of the lower clamping block 106 facing the walking box body 101, and a push rod 119 matched with the through groove 118 is fixedly installed on the surface of the walking box body 101 facing the clamping block 106; it should be noted that, in this embodiment, the surfaces of the first stopper 112 and the second stopper 117, which are away from the suspension cable in the initial state, are both horizontal surfaces, and the surfaces facing the walking box 101 are both arc surfaces.

The walking mechanism 1 can intermittently move along the suspension cable, and the moving distance is adjustable, and the walking mechanism comprises the following specific steps: in an initial state, the walking box 101 is stationary on the suspension cable, when the walking cylinder 103 drives the translation block 104, the square rod 105, the clamping block 106 and the roller 107 to move horizontally, the roller 107 is attached to the oblique edge of the guide plate 109 to roll, the first return spring 108 is stretched, the two clamping blocks 106 corresponding to each other up and down gradually approach the suspension cable, in the process, the second limit block 117 enters the first accommodating groove 110 and is attached to the first limit block 112, the arc surfaces of the second limit block and the first limit block interact to enable the first limit block 112 and the second limit block 117 to generate displacement in the horizontal direction, the second return spring 113 and the third return spring 116 are compressed, when the arc surfaces of the second limit block and the third limit block are separated, the resilience of the second return spring 113 and the third return spring 116 enables the first limit block 112 and the second limit block 117 to reset respectively, the horizontal surfaces of the first limit block 112 and the second limit block 117 are attached to each other, the two clamping blocks 106 corresponding to be connected together under the limiting action, at the moment, the two clamping blocks 106 are fixed relative to the positions of the suspension cable, namely, the box 106 does not move horizontally, and the box 101 does not move horizontally; in this state, the walking cylinder 103 is started again, and since the end of the walking cylinder 103 does not move relative to the suspension cable, the cylinder body of the walking cylinder 103 drives the walking box 101 and the guide plate 109 to move towards the clamping block 106 through the action of the cylinder frame 102, and the moving distance of the walking box 101 can be controlled by controlling the extending length of the walking cylinder 103 and the position of the guide plate 109 on the walking box 101; the push rod 119 is driven to move towards the clamping block 106 synchronously in the moving process of the walking box body 101, the push rod 119 penetrates through the through groove 118 and then is inserted into the third accommodating groove 114 and pushes the strip-shaped sliding block 115 and the second limiting block 117 to move horizontally in the moving process, the second limiting block 117 is separated from the first limiting block 112 immediately, after the first limiting block 112 is separated from the limiting effect of the second limiting block 117, the resilience force of the upper first return spring 108 enables the upper clamping block 106 to move upwards for resetting, once movement is completed through the process, but the lower clamping block 106 is not reset at the moment under the blocking of the push rod 119; after the walking cylinder 103 is started again, the two clamping blocks 106 horizontally move again, at this time, the push rod 119 moves out of the third accommodating groove 114 and the through groove 118, and the resilience of the first return spring 108 below enables the clamping block 106 below to move downwards for return.

As shown in fig. 1, fig. 3 and fig. 6, two lifting mechanisms 2 corresponding to each other in the left and right direction are installed at the bottom of the traveling box 101, each lifting mechanism 2 includes two fixing supports 201 installed at the bottom of the traveling box 101, the two fixing supports 201 are correspondingly arranged in the front and back direction, each fixing support 201 is rotatably installed with a fixed pulley 202, a lifting rope 203 is installed between the two fixed pulleys 202 corresponding in the front and back direction, an adjusting mechanism 3 for adjusting the lifting rope 203 is installed at the bottom of the traveling box 101, a lifting platform 4 is installed at the end portions of the lifting rope 203 in the two lifting mechanisms 2, two aligning mechanisms 5 are installed at the bottom surface of the lifting platform 4, and supporting mechanisms 6 are installed at the left and right ends of the lifting platform 4.

Referring to fig. 1 and 2, the adjusting mechanism 3 includes two guide rods 301 vertically and fixedly installed at the bottom of the traveling box 101, an adjusting platform 302 is installed on the two guide rods 301 in a sliding manner, and a bottom plate 303 is installed at the bottom ends of the two guide rods 301 in a fixed manner; an adjusting motor 304 is fixedly installed at the bottom of the walking box 101 through a motor base, and an adjusting screw 305 which is in threaded fit with the adjusting platform 302 and is in rotating fit with the bottom plate 303 is vertically and fixedly installed at the output end of the adjusting motor 304; the left side and the right side of the adjusting platform 302 are both fixedly provided with pulley frames 306 through connecting rods, and the pulley frames 306 are rotatably provided with movable pulleys 307 attached to the lifting ropes 203.

When the adjusting motor 304 drives the adjusting screw 305 to rotate forward, the adjusting screw 305 drives the adjusting table 302, the pulley frame 306 and the movable pulley 307 to move downward, the movable pulley 307 applies downward thrust to the middle part of the lifting rope 203, the two ends of the lifting rope 203 rise, and the lifting table 4, the aligning mechanism 5 and the supporting mechanism 6 rise synchronously; when the adjusting motor 304 drives the adjusting screw 305 to rotate reversely, the adjusting screw 305 drives the adjusting table 302, the pulley frame 306 and the movable pulley 307 to move upwards, and the lifting table 4, the aligning mechanism 5 and the supporting mechanism 6 move downwards under the action of gravity, so that the heights of the lifting table 4, the aligning mechanism 5 and the supporting mechanism 6 are controlled through the adjusting mechanism 3; it should be noted that the lifting rope 203 has a certain elasticity and can generate a certain amount of deformation, thereby allowing a slight horizontal displacement of the lifting platform 4 when the lifting rope 203 is in a tensioned state.

As shown in fig. 6, 7 and 8, the aligning mechanism 5 includes a fixing table 501 fixedly installed on the bottom surface of the lifting table 4, two first arc-shaped plates 502 and two second arc-shaped plates 503 are slidably installed on the bottom surface of the fixing table 501, the first arc-shaped plates 502 and the second arc-shaped plates 503 are both in a vertical state, and intersecting lines of outer arc surfaces of the first arc-shaped plates 502 and the second arc-shaped plates 503 and the same horizontal plane can be located on the track of the same virtual circle; the outer arc surfaces of the first arc-shaped plate 502 and the second arc-shaped plate 503 are fixedly provided with supporting blocks 504, and the upper surfaces of the supporting blocks 504 are positioned in the same horizontal plane; the first arc-shaped plates 502 and the second arc-shaped plates 503 are sequentially arranged in an annular staggered manner, and the radian of the first arc-shaped plates 502 is smaller than that of the second arc-shaped plates 503, so that a space can be reserved for the two second arc-shaped plates 503 after the two first arc-shaped plates 502 are close to each other; a vertical shaft 505 is rotatably mounted on the fixed table 501, and the first arc-shaped plate 502 and the second arc-shaped plate 503 slide along the radial direction of the vertical shaft 505; a first rack 506 is fixedly arranged on the inner arc surface of the first arc-shaped plate 502, an all-gear 507 meshed with the first rack 506 is fixedly arranged on the vertical shaft 505, a second rack 508 is fixedly arranged on the inner arc surface of the second arc-shaped plate 503, and a gear lack 509 meshed with the second rack 508 is fixedly arranged on the vertical shaft 505; a driven gear 510 is fixedly mounted on the top of the vertical shaft 505, an air cylinder 511 is fixedly mounted on the fixed platform 501, and a driving rack 512 meshed with the driven gear 510 is fixedly mounted at the end of a telescopic section of the air cylinder 511.

The first arcuate plate 502 and the second arcuate plate 503 have two states: in the first state, the first arc-shaped plate 502 and the second arc-shaped plate 503 are both at the position closest to the vertical shaft 505, and the first arc-shaped plate 502 and the second arc-shaped plate 503 can be easily inserted into the threaded hole of the longitudinal beam in the first state; in a second state, the first arc-shaped plate 502 and the second arc-shaped plate 503 are both located at the positions farthest away from the vertical shaft 505, the intersecting lines of the outer arc surfaces of the first arc-shaped plate 502 and the second arc-shaped plate 503 and the same horizontal plane are located on the track of the same virtual circle in the second state, a virtual cylinder formed by the first arc-shaped plate 502 and the second arc-shaped plate 503 in the second state is just matched with threaded holes in the cross beam and the longitudinal beam, and in the second state, the supporting block 504 can support the cross beam; before the beam is installed on the two alignment mechanisms 5, the first arc-shaped plate 502 and the second arc-shaped plate 503 are both in a first state, the beam is manually placed on the two alignment mechanisms 5, so that the first arc-shaped plate 502 and the second arc-shaped plate 503 are both inserted into threaded holes of the beam, then the first arc-shaped plate 502 and the second arc-shaped plate 503 are adjusted to a second state, and the beam is supported through the support block 504; after the beam is supported by the supporting mechanism 6, the first arc-shaped plate 502 and the second arc-shaped plate 503 are restored to the first state; before the cross beam does not descend, the supporting mechanism 6 supports the cross beam, the first arc-shaped plate 502 and the second arc-shaped plate 503 are in a first state, and in the descending process of the cross beam, the first arc-shaped plate 502 and the second arc-shaped plate 503 in the first state are inserted into the threaded holes of the longitudinal beam; after the supporting mechanism 6 finishes supporting the cross beam, the cross beam falls to the upper surface of the longitudinal beam, at this time, the lifting table 4, the aligning mechanism 5 and the supporting mechanism 6 are adjusted to integrally ascend through the adjusting mechanism 3 until the supporting block 504 moves to the position above the cross beam, in this state, the first arc-shaped plate 502 and the second arc-shaped plate 503 are still inserted into threaded holes of the cross beam and the longitudinal beam, and the first arc-shaped plate 502 and the second arc-shaped plate 503 are still in the first state; then, the driving rack 512 is driven to move by the air cylinder 511, the driving rack 512 drives the driven gear 510, the vertical shaft 505, the full gear 507 and the gear lack 509 to rotate, and the first arc-shaped plate 502 and the second arc-shaped plate 503 simultaneously move to the second state until the first arc-shaped plate 502 and the second arc-shaped plate 503 reach the second state; in the process, the first arc-shaped plate 502 and the second arc-shaped plate 503 adjust the position of the cross beam, and the outer arc surfaces of the first arc-shaped plate 502 and the second arc-shaped plate 503 are both attached to the inner walls of the threaded holes on the cross beam and the longitudinal beam, so that the threaded holes on the cross beam and the threaded holes on the longitudinal beam are in a state of axial line coincidence; it should be noted that, in the process of adjusting the position of the cross beam by the first arc-shaped plate 502 and the second arc-shaped plate 503, because horizontal acting force is generated between the first arc-shaped plate 502 and the second arc-shaped plate 503 and the inner wall of the threaded hole on the longitudinal beam, the horizontal position of the lifting table 4 also moves synchronously, and the lifting rope 203 also deviates synchronously; then, the air cylinder 511 drives the driving rack 512 to reset, the driving rack 512 drives the driven gear 510, the vertical shaft 505, the full gear 507 and the gear lack 509 to rotate reversely, the full gear 507 drives the first rack 506 and the first arc-shaped plate 502 to move towards the vertical shaft 505 at first, the two first arc-shaped plates 502 are close to each other and make room for the movement of the second arc-shaped plate 503, then the gear lack 509 drives the second rack 508 and the second arc-shaped plate 503 to move towards the vertical shaft 505 until the first arc-shaped plate 502 and the second arc-shaped plate 503 recover to the first state, and in the process, the moving distance of the first arc-shaped plate 502 is greater than the moving distance of the second arc-shaped plate 503; under this state, the extrados of first arc 502 and second arc 503 all separates with the screw hole inner wall on crossbeam and the longeron, and adjustment mechanism 3 adjusts elevating platform 4, alignment mechanism 5 and the continuous in-process that rises of supporting mechanism 6, and first arc 502 and second arc 503 can not produce axial interact with the screw on the screw hole inner wall, have avoided the impaired condition of screw thread to appear.

As shown in fig. 5, the supporting mechanism 6 includes two rotating arms 601 rotatably mounted on the lifting table 4, a horizontal shaft 602 is fixedly mounted between the two rotating arms 601, and a supporting roller 603 is rotatably mounted on the horizontal shaft 602; the rotating arm 601 is fixedly provided with a stop block 604, the position of the lifting platform 4 corresponding to each stop block 604 is horizontally provided with a stop strip 605 matched with the stop block 604 in a sliding way, and the two stop strips 605 are fixedly connected through a horizontal rod 606 with a wedge-shaped section; a wedge block 607 is vertically and slidably mounted on the end surface of the lifting platform 4, and the inclined surface of the wedge block 607 is attached to the inclined surface of the horizontal rod 606; a plurality of top support rods 608 are vertically and fixedly installed at the bottom of the wedge block 607, a horizontal plate 609 is jointly and fixedly installed on the top support rods 608, and an expansion spring 610 is fixedly connected between the horizontal plate 609 and the lifting platform 4.

After the cross beam is manually installed on the two aligning mechanisms 5, the rotating arm 601 is adjusted to enable the rotating arm 601 to be in a vertical state, in the state, the supporting roller 603 supports the junction of the bottom surface and the end surface of the cross beam, and the barrier strip 605 plays a role in blocking the stop block 604, so that the situation that the stop block 604 and the rotating arm 601 swing towards the direction far away from the cross beam in the horizontal transportation process of the cross beam is avoided, and the situation that the cross beam falls off is avoided through the common supporting effect of the left supporting roller 603 and the right supporting roller 603 on the cross beam; after the crossbeam reaches the assembly position, the lifting platform 4, the aligning mechanism 5 and the supporting mechanism 6 synchronously descend, the top brace 608 firstly contacts with the upper surface of the longitudinal beam and is pushed by the longitudinal beam to move upwards, the wedge-shaped block 607 and the horizontal plate 609 are driven to synchronously move upwards in the process of moving the top brace 608 upwards, and the telescopic spring 610 is compressed; the wedge block 607 pushes the horizontal rod 606 and the blocking strip 605 to move horizontally in the direction far away from the beam in the upward moving process, the blocking strip 605 is separated from the block 604, and the block 604 is no longer blocked by the blocking strip 605, that is, the block 604 and the rotating arm 601 can drive the horizontal shaft 602 and the carrier roller 603 to swing in the direction far away from the beam; with the continuous descending of the lifting table 4, the aligning mechanism 5 and the bearing mechanism 6, the carrier roller 603 is attached to the upper surface of the longitudinal beam, in this state, the longitudinal beam applies upward thrust to the carrier roller 603, the cross beam applies downward and horizontal thrust far away from the cross beam to the carrier roller 603, the carrier roller 603 gradually moves upwards in an arc shape under the action of the common thrust of the cross beam and the longitudinal beam, namely the rotating arm 601 swings towards the upper part far away from the cross beam, in the process, the junction of the bottom surface and the end surface of the cross beam is always attached to the surface of the carrier roller 603, and the carrier roller 603 plays a role in buffering the descending of the cross beam until the cross beam is separated from the carrier roller 603 and falls to the upper surface of the longitudinal beam under the action of self gravity; then the lifting table 4, the aligning mechanism 5 and the supporting mechanism 6 are lifted synchronously, the carrier roller 603 is separated from the upper surface of the longitudinal beam, the resilience force of the telescopic spring 610 enables the horizontal plate 609, the top support rod 608 and the wedge block 607 to descend and reset, and finally the rotating arm 601 swings back to a vertical state under the action of the gravity of the carrier roller 603; the barrier strips 605 and the horizontal rods 606 are returned manually in the next hoisting process.

The working process of the bridge beam assembling and hoisting equipment in the embodiment is as follows: in an initial state, the first arc-shaped plate 502 and the second arc-shaped plate 503 are both located at positions farthest from the vertical axis 505, a single beam is manually mounted on the two alignment mechanisms 5, then the supporting mechanisms 6 are manually adjusted, the two ends of the beam are supported by the supporting mechanisms 6, and the supporting of the beam by the alignment mechanisms 5 is simultaneously released, that is, the first arc-shaped plate 502 and the second arc-shaped plate 503 are adjusted to positions closest to the vertical axis 505; the lifting mechanism 2, the adjusting mechanism 3, the lifting platform 4, the aligning mechanism 5, the supporting mechanism 6 and the crossbeam are driven to the position above a longitudinal beam to be assembled through the walking mechanism 1, the heights of the lifting platform 4, the aligning mechanism 5, the supporting mechanism 6 and the crossbeam are adjusted through the adjusting mechanism 3 until the crossbeam falls to the upper surface of the longitudinal beam and the support of the supporting mechanism 6 on the crossbeam is removed, in this state, the supporting block 504 is located in a threaded hole of the longitudinal beam, the heights of the lifting platform 4, the aligning mechanism 5 and the supporting mechanism 6 are adjusted through the adjusting mechanism 3 again, after the aligning mechanism 5 ascends for a certain distance, the supporting block 504 is moved out of the upper surface of the crossbeam, in this state, the positions of the crossbeam are adjusted through the first arc-shaped plate 502 and the second arc-shaped plate 503, so that threaded holes on the crossbeam and the longitudinal beam are aligned, and meanwhile, the lifting platform 4 can also generate micro-scale deviation; finally, the lifting platform 4, the aligning mechanism 5 and the supporting mechanism 6 are adjusted by the adjusting mechanism 3 to be restored to the initial height, the lifting platform 4 is reset, and the first arc-shaped plate 502 and the second arc-shaped plate 503 are separated from the threaded holes of the cross beam, namely, the hoisting of a single cross beam is completed; after the lifting mechanism 2, the adjusting mechanism 3, the lifting platform 4, the aligning mechanism 5 and the bearing mechanism 6 are reset through the travelling mechanism 1, the steps are repeated, and all the cross beams are hoisted in sequence.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a bridge beam assembles equipment of lifting by crane, include with a plurality of span wire complex running gear (1), its characterized in that: the lifting mechanism comprises a walking mechanism (1), wherein two lifting mechanisms (2) which correspond to each other left and right are installed at the bottom of the walking mechanism (1), each lifting mechanism (2) comprises two fixed supports (201) installed at the bottom of the walking mechanism (1), the two fixed supports (201) are arranged in a front-back corresponding mode, each fixed support (201) is rotatably provided with a fixed pulley (202), a lifting rope (203) is installed between the two fixed pulleys (202) which correspond to each other front and back, an adjusting mechanism (3) used for adjusting the lifting rope (203) is installed at the bottom of the walking mechanism (1), and lifting platforms (4) are installed at the end parts of the lifting ropes (203) in the two lifting mechanisms (2) together;

two aligning mechanisms (5) are installed on the bottom surface of the lifting platform (4), each aligning mechanism (5) comprises a fixed platform (501) fixedly installed on the bottom surface of the lifting platform (4), two first arc-shaped plates (502) and two second arc-shaped plates (503) are installed on the bottom surface of the fixed platform (501) in a sliding mode, the first arc-shaped plates (502) and the second arc-shaped plates (503) are in a vertical state, and intersecting lines of outer arc surfaces of the first arc-shaped plates (502) and the second arc-shaped plates (503) and the same horizontal plane can be located on the track of the same virtual circle; the outer arc surfaces of the first arc-shaped plate (502) and the second arc-shaped plate (503) are fixedly provided with bearing blocks (504), and the upper surfaces of the bearing blocks (504) are positioned in the same horizontal plane.

2. The bridge beam assembly lifting device of claim 1, wherein: the adjusting mechanism (3) comprises two guide rods (301) vertically and fixedly installed at the bottom of the traveling mechanism (1), an adjusting platform (302) is installed on the two guide rods (301) in a sliding mode, and a bottom plate (303) is fixedly installed at the bottom ends of the two guide rods (301) together; an adjusting motor (304) is fixedly installed at the bottom of the traveling mechanism (1) through a motor base, and an adjusting lead screw (305) which is in threaded fit with the adjusting platform (302) and is in rotating fit with the bottom plate (303) is vertically and fixedly installed at the output end of the adjusting motor (304); the left side and the right side of the adjusting platform (302) are fixedly provided with pulley frames (306) through connecting rods, and the pulley frames (306) are rotatably provided with movable pulleys (307) attached to the lifting ropes (203).

3. The bridge beam assembly lifting device of claim 1, wherein: the first arc-shaped plates (502) and the second arc-shaped plates (503) are sequentially arranged in an annular staggered manner, and the radian of the first arc-shaped plates (502) is smaller than that of the second arc-shaped plates (503); a vertical shaft (505) is rotatably mounted on the fixed table (501), and the first arc-shaped plate (502) and the second arc-shaped plate (503) both slide along the radial direction of the vertical shaft (505); fixed mounting has first rack (506) on the intrados of first arc (502), and fixed mounting has all gear (507) with first rack (506) meshing on vertical axle (505), and fixed mounting has second rack (508) on the intrados of second arc (503), and fixed mounting has scarce gear (509) with second rack (508) meshing on vertical axle (505).

4. The bridge beam assembly lifting device of claim 3, wherein: driven gear (510) are fixedly installed on the top of the vertical shaft (505), an air cylinder (511) is fixedly installed on the fixed platform (501), and a driving rack (512) meshed with the driven gear (510) is fixedly installed at the end part of a telescopic section of the air cylinder (511).

5. The bridge beam assembly lifting device of claim 1, wherein: supporting mechanism (6) are all installed at both ends about elevating platform (4), and supporting mechanism (6) include two swivel arms (601) of rotating and installing on elevating platform (4), and fixed mounting has horizontal axis (602) between two swivel arms (601), rotates on horizontal axis (602) and installs bearing roller (603).

6. The bridge beam assembly lifting device of claim 5, wherein: the rotating arm (601) is fixedly provided with a stop block (604), a stop strip (605) matched with each stop block (604) is horizontally and slidably arranged on the lifting platform (4) corresponding to the position of each stop block (604), and the two stop strips (605) are fixedly connected through a horizontal rod (606) with a wedge-shaped section; a wedge-shaped block (607) is vertically and slidably mounted on the end face of the lifting platform (4), and the inclined plane of the wedge-shaped block (607) is attached to the inclined plane of the horizontal rod (606); a plurality of top supporting rods (608) are vertically and fixedly installed at the bottom of the wedge-shaped block (607), a horizontal plate (609) is fixedly installed on the top supporting rods (608) together, and an expansion spring (610) is fixedly connected between the horizontal plate (609) and the lifting platform (4).

7. The bridge beam assembly lifting device of claim 1, wherein: the walking mechanism (1) comprises a walking box body (101), driving units are arranged on the walking box body (101) corresponding to the positions of all suspension cables, each driving unit comprises two cylinder frames (102) fixedly arranged on the top surface and the bottom surface of the walking box body (101) respectively, the two cylinder frames (102) correspond to each other vertically, a walking cylinder (103) is horizontally and fixedly arranged on each cylinder frame (102), a translation block (104) is fixedly arranged at the end part of a telescopic section of the walking cylinder (103), a square rod (105) penetrating through the translation block (104) is vertically and slidably arranged on the translation block (104), a clamping block (106) is fixedly arranged at one end, close to the suspension cable, of the square rod (105), and a roller (107) is rotatably arranged at one end, far away from the suspension cable, of the square rod (105); a first return spring (108) sleeved on the square rod (105) is arranged between the clamping block (106) and the translation block (104); the guide plates (109) are installed on the surfaces of the walking box bodies (101) corresponding to the positions of the walking cylinders (103), the edges, facing the suspension cables, of the guide plates (109) are inclined, and the idler wheels (107) are attached to the inclined edges of the guide plates (109).

8. The bridge beam assembly lifting device of claim 7, wherein: a first accommodating groove (110) is formed in the bottom surface of the clamping block (106) positioned above the clamping block, a second accommodating groove (111) is formed in the side wall of the first accommodating groove (110), a first limiting block (112) is horizontally and movably arranged in the second accommodating groove (111), and a horizontal second reset spring (113) is fixedly connected between the first limiting block (112) and the inner wall of the second accommodating groove (111); a third accommodating groove (114) corresponding to the first accommodating groove (110) is formed in the top surface of the lower clamping block (106), a vertical strip-shaped sliding block (115) is horizontally and movably installed in the third accommodating groove (114), and a horizontal third return spring (116) is fixedly connected between the strip-shaped sliding block (115) and the inner wall of the third accommodating groove (114); a second limiting block (117) matched with the first limiting block (112) is fixedly arranged at the top end of the strip-shaped sliding block (115); the clamping block (106) located below is horizontally provided with a through groove (118) communicated with the third accommodating groove (114) towards the surface of the walking box body (101), and a push rod (119) matched with the through groove (118) is fixedly installed on the surface of the walking box body (101) towards the clamping block (106).

9. The bridge beam assembly lifting device of claim 7, wherein: the guide plate (109) is in sliding fit with the surface of the walking box body (101).

10. The bridge beam assembly lifting device of claim 7, wherein: a plurality of rolling balls (120) which are in rolling fit with the suspension cables are uniformly arranged on the walking box body (101).