CN109051848B - Excavation grudging post hoist mechanism - Google Patents
Excavation grudging post hoist mechanism Download PDFInfo
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- CN109051848B CN109051848B CN201810792844.2A CN201810792844A CN109051848B CN 109051848 B CN109051848 B CN 109051848B CN 201810792844 A CN201810792844 A CN 201810792844A CN 109051848 B CN109051848 B CN 109051848B
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- suspension arm
- vertical frame
- lifting
- driving mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 151
- 238000009412 basement excavation Methods 0.000 title claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 12
- 239000000725 suspension Substances 0.000 claims description 76
- 238000004804 winding Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000008602 contraction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G63/00—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations
- B65G63/002—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations for articles
Abstract
The invention discloses an excavation vertical frame hoisting mechanism, which comprises a base frame, a guide rail, a vertical frame bearing trolley, a telescopic platform, a jacking mechanism and a hoisting device, wherein the base frame is fixedly connected with the guide rail; the telescopic platform is arranged on the base frame in a telescopic manner; the jacking mechanism is connected to the telescopic platform in a sliding manner and comprises a jacking clamping plate for bearing the vertical frame and a lifting driving mechanism connected to the lower end of the jacking clamping plate, and the lifting driving mechanism is used for driving the jacking clamping plate and the vertical frame to ascend so as to realize the installation of the vertical frame; the lifting device is used for lifting the vertical frame and conveying the vertical frame to the vertical frame carrying trolley; the guide rail is transversely and fixedly arranged on the base frame; the vertical frame bearing trolley is arranged on the guide rail and can horizontally translate and convey the vertical frame along the guide rail, and the vertical frame bearing trolley is connected with a translation driving mechanism. The design integrates a plurality of vertical frame operation mechanisms, high automation operation, reduced labor cost, simplified installation of the vertical frame and increased construction safety.
Description
Technical Field
The invention relates to a vertical frame installation device, in particular to an excavation vertical frame hoisting mechanism.
Background
At present, in the excavation process of a tunnel, in order to prevent rocks on the upper wall of the tunnel from dropping or even collapsing, an arc-shaped stand is required to be erected on the tunnel while the tunnel is excavated to support the tunnel, due to the fact that a plurality of steps are arranged in the installation process of the stand, a plurality of machines are usually required to cooperate to complete the tunnel, the accurate cooperation among the machines is required for the handing-over of the stand among the plurality of machines, and due to the fact that the site of the tunnel excavation is relatively complex in topography, a certain difficulty exists in the accurate cooperation among the machines, the erection of the stand is quite troublesome, and in the process of erection, a plurality of workers are required to assist in installation, the installation efficiency is low, and the construction safety hidden danger is caused by excessive manual operation.
Disclosure of Invention
The present invention aims to solve the above technical problems at least to some extent. Therefore, the invention provides the excavation vertical frame hoisting mechanism integrating a plurality of functions and being high in automation.
The technical scheme adopted for solving the technical problems is as follows: an excavating vertical frame hoisting mechanism comprises a base frame, a guide rail, a vertical frame bearing trolley, a telescopic platform, a jacking mechanism and a hoisting device; the telescopic platform is arranged on the base frame in a telescopic way, and is connected with a first telescopic driving mechanism capable of driving the telescopic platform to stretch; the lifting mechanism is connected to the telescopic platform in a sliding manner, and is connected with a sliding driving mechanism capable of driving the lifting mechanism to slide, the lifting mechanism comprises a lifting clamping plate for bearing the vertical frame and a lifting driving mechanism connected to the lower end of the lifting clamping plate, and the lifting driving mechanism is used for driving the lifting clamping plate and the vertical frame to ascend so as to realize the installation of the vertical frame; the lifting device is used for lifting the vertical frame and conveying the vertical frame to the vertical frame carrying trolley; the guide rail is transversely and fixedly arranged on the base frame; the vertical frame bearing trolley is arranged on the guide rail and can transversely translate and convey the vertical frame along the guide rail, the vertical frame bearing trolley is connected with a translation driving mechanism, and the translation driving mechanism can drive the vertical frame placed on the vertical frame bearing trolley to transversely move and convey the vertical frame to the position above the lifting mechanism in a retraction state.
Further, a supporting oil cylinder is arranged at the bottom of the extending tail end of the telescopic platform.
Further, the bottom of flexible platform middle-end is provided with scalable supporting leg, the supporting leg can be folded in flexible platform bottom surface.
Further, the supporting leg sets up in flexible platform bottom surface lateral part, the supporting leg top is articulated with flexible platform bottom surface, flexible platform bottom is provided with the turn-buckle, turn-buckle is connected through shrink rope with the supporting leg lower extreme.
Further, the lifting device comprises a suspension arm and a suspension rope; the bottom end of the suspension arm is hinged on the base frame, the top end of the suspension arm can stretch to change the length of the suspension arm, the suspension arm is connected with a second stretching driving mechanism capable of driving the suspension arm to stretch, and the suspension arm is connected with a rotary driving mechanism capable of driving the suspension arm to rotate around the hinged position; the middle part of the lifting rope is wound at the upper end of the suspension arm, one end of the lifting rope which extends vertically around the suspension arm is used for binding the stand, and the other end of the lifting rope is connected with a lifting rope winding and unwinding driving mechanism.
Further, the suspension arm comprises an outer suspension arm and an inner suspension arm, the outer suspension arm is hollow, the center of the outer suspension arm is provided with a center hole, the inner suspension arm is sleeved in the center hole of the outer suspension arm, and the second telescopic driving mechanism is a hydraulic telescopic oil cylinder; one end of the second telescopic driving mechanism is connected to the outer suspension arm, and the other end of the second telescopic driving mechanism is connected to the inner suspension arm.
Further, the rotary driving mechanism is a hydraulic telescopic oil cylinder, one end of the rotary driving mechanism is hinged with the base frame, and the other end of the rotary driving mechanism is movably connected with the outer suspension arm and can slide along the length direction of the outer suspension arm.
Further, the bottom of the outer suspension arm is connected with the base frame through a first hinging seat, the outer suspension arm is hinged with the first hinging seat, and a circle of bolt holes are uniformly formed in the bottom of the first hinging seat so as to be fixed on the base frame through bolts; the rotary driving mechanism is connected with the base frame through a second hinging seat, the rotary driving mechanism is hinged with the second hinging seat, the base frame is provided with an arc track arranged around the first hinging seat, and the second hinging seat is slidably connected on the arc track.
Further, the upper end of the side wall of the inner suspension arm is provided with a first pulley, the edge of the upper end of the side wall is provided with a first wire passing groove corresponding to the first pulley, the edge of the upper end of the side wall opposite to the side wall is provided with a second wire passing groove corresponding to the first wire passing groove, and the suspension rope sequentially bypasses the first pulley, the second wire passing groove and the first wire passing groove from the suspension rope winding and unwinding driving mechanism and finally vertically extends to be used for connecting the stand.
Further, the lifting driving mechanism comprises a fixed part and a telescopic part which is connected with the fixed part and can stretch out and draw back, and the top end of the telescopic part is connected with the jacking clamping plate; the lifting mechanism further comprises a first connecting plate, a second connecting plate, a first telescopic oil cylinder and a limiting pin, wherein the upper end of the fixing part is provided with the limiting plate, the first connecting plate is fixedly connected with the limiting plate, the first connecting plate is provided with a limiting hole matched with the limiting pin, the second connecting plate is composed of a connecting side plate and a connecting bottom plate, the connecting bottom plate is provided with a yielding hole corresponding to the fixing part, the lower end of the fixing part is inserted into the yielding hole and the bottom surface of the limiting plate is attached to the connecting bottom plate, the connecting side plate is provided with a limiting groove corresponding to the limiting hole, the limiting pin penetrates into the limiting groove and is connected with the limiting hole in a matched mode, one end of the first telescopic oil cylinder is connected with the second connecting plate, the other end of the first telescopic oil cylinder is connected with the limiting pin, and the lifting clamp plate can move along the limiting groove under the driving of the first telescopic oil cylinder.
The beneficial effects of the invention are as follows: the lifting device is used for lifting the stand to the stand bearing trolley, then the stand bearing trolley moves the stand to the upper part of the jacking mechanism, the jacking mechanism bears the stand and moves the stand to the mounting position of the stand along with the extension of the telescopic platform, the jacking mechanism jacks the stand and finally the stand is mounted on the inner wall of the tunnel, and the device can complete all steps of the mounting of the stand, and as the relative positions of all mechanisms are fixed, the problem of cooperation of all steps of the stand is avoided; this design integrates a plurality of functions, and high automation is operated, reduces the human cost, simplifies the grudging post installation, increases construction safety.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the mounting structure of the present invention;
FIG. 2 is a front view of the mounting structure of the present invention;
FIG. 3 is a right side view of the mounting structure of the present invention;
FIG. 4 is a top view of the mounting structure of the present invention;
FIG. 5 is an exploded view of the lift mechanism;
FIG. 6 is an enlarged view at A of FIG. 1;
FIG. 7 is an enlarged view at B of FIG. 1;
FIG. 8 is an enlarged view at C of FIG. 1;
FIG. 9 is another angular schematic view of the mounting structure of the present invention
Fig. 10 is an enlarged view at D of fig. 9.
Detailed Description
The invention will now be described in detail with reference to the drawings and examples.
Referring to fig. 1 to 10, the invention relates to an excavating vertical lifting mechanism, which comprises a base frame 1, a guide rail 2, a vertical bearing trolley 3, a telescopic platform 4, a lifting mechanism 5 and a lifting device.
The guide rail 2 is transversely and fixedly arranged on the base frame 1. In this embodiment, for the purpose of carrying and transporting the stand more stably, two guide rails 2 are provided, and the laying direction of the guide rails 2 is along the direction of tunnel extension excavation. The base frame 1 is provided with a table 11 between the two rails.
The vertical frame carrying trolley 3 is arranged on the guide rails 2 and can transversely translate and convey the vertical frames along the guide rails 2, each guide rail 2 is provided with one vertical frame carrying trolley 3, the vertical frame carrying trolley 3 is connected with a translation driving mechanism, and the translation driving mechanism can drive the vertical frames placed on the vertical frame carrying trolley 3 to transversely move and convey the vertical frames to the upper part of the lifting mechanism 5 in a retracted state. Preferably, the main structure of the guide rail 2 is an I-steel, two rows of rollers are arranged at the bottom of the vertical frame bearing trolley 3, and the two rows of rollers are respectively embedded into grooves at two sides of the I-steel to slide. In this embodiment, preferably, the translation driving mechanism is a first hydraulic winch 31, each of the stand-up bearing trolleys 3 is correspondingly provided with a first hydraulic winch 31, two ends of the stand-up bearing trolleys 3 in the sliding direction are connected with first connecting lines, the two corresponding ends of the guide rail 2 are respectively provided with pulleys, the first connecting lines at two ends of the same stand-up bearing trolley 3 respectively bypass the corresponding pulleys and are finally connected to the same first hydraulic winch 31, and the first hydraulic winch 31 is installed on the base frame 1. The forward and reverse rotation of the first hydraulic winch 31 can control the forward or reverse movement of the vertical carrier trolley 3. Specifically, the upper end of the stand bearing trolley 3 is provided with two vertically arranged first side plates perpendicular to the moving direction of the stand bearing trolley 3, one vertical passageway for placing the stand is formed by the two first side plates, the first side plates and the bottom surface of the passageway are connected with obliquely arranged backup plates, the backup plates are parallel to the vertical arrangement, the two obliquely arranged backup plates are used for bearing the stand, the two first side plates are provided with corresponding bolt holes, and the stand can be fixed in an auxiliary mode through the first side plate connecting bolts.
The telescopic platform 4 is arranged on the upper surface of the base frame 1 in a telescopic manner, the telescopic platform 4 is arranged between the two guide rails 2, and the telescopic platform 4 is connected with a first telescopic driving mechanism capable of driving the telescopic platform 4 to stretch; in this embodiment, preferably, the first telescopic driving mechanism is a second hydraulic winch 45, the second hydraulic winch 45 is installed on the base frame 1, corresponding pulleys are arranged at the front end and the rear end of the telescopic platform 4 on the base frame 1, the telescopic platform 4 is respectively connected with two second connecting wires, the two second connecting wires respectively bypass the pulleys at the two ends and are finally connected to the second hydraulic winch 45, and the forward and reverse rotation of the second hydraulic winch 45 can control the telescopic platform 4 to stretch. In this embodiment, the connection position between the second connection line and the telescopic platform 4 is preferably in the rear half of the telescopic platform 4, that is, the rear half of the extending direction, but the connection position may be set according to the extending distance of the telescopic platform 4. In order to stabilize the stress of the telescopic platform 4 in the telescopic process, two groups of second hydraulic winches 45, second connecting lines and corresponding pulleys are arranged at intervals in the vertical direction and symmetrically arranged according to the central line of the telescopic platform 4, so that the telescopic stress of the telescopic platform 4 is more uniform. Specifically, two sliding track frames 15 are arranged at the upper end of the base frame 1, a row of rollers arranged along the telescopic direction are arranged on the inner side of the sliding track frames 15, channel steel corresponding to the rollers in a matched mode is arranged on two sides of the telescopic platform 4, and the channel steel on two sides of the telescopic platform 4 is embedded on the rollers on two sides to realize movement. Of course, in other embodiments, there are many ways to connect the telescopic platform 4 and the base frame 1, as long as the telescopic platform 4 is slidably connected to the base frame 1 to implement the telescopic function.
The jacking mechanism 5 is connected to the telescopic platform 4, and the jacking mechanism 5 is used for jacking up the vertical frame above the telescopic platform; the lifting device is used for lifting the vertical frame and conveying the vertical frame to the vertical frame carrying trolley 3.
The person only needs to tie up the grudging post to hoisting accessory, and hoisting accessory can send the grudging post to on the grudging post bears dolly 3, and the grudging post bears the dolly 3 under the effect of pushing up the mechanism 5, and pushing up mechanism 5 and grudging post send tunnel excavation department along with stretching out of flexible platform 4 again, and finally pushing up mechanism 5 jack up the grudging post, install the grudging post at the tunnel upper wall.
In order to support the telescopic platform 4 without external equipment, the bottom of the extending end of the telescopic platform 4 is provided with a support cylinder 41, that is, the support cylinder 41 is arranged at the bottom of the front end of the extending direction of the telescopic platform 4. The support cylinder 41 can be adjusted in height according to the distance from the ground and can bear a high load. In the present embodiment, the support cylinders 41 are provided in two, respectively provided on both sides. In order to make telescopic platform 4 support more steady, the atress is more even, telescopic supporting leg 42 is provided with in the bottom of telescopic platform 4 middle-end, and supporting leg 42 bottom is screw jack, can adjust height according to actual conditions, for supporting leg 42 does not hinder telescopic platform 4's the retract, supporting leg 42 is collapsible in telescopic platform 4 bottom surface, specifically, as shown in fig. 10, supporting leg 42 top is connected with telescopic platform 4, and the lateral part that supporting leg 42 top is close to telescopic platform 4 middle part is articulated with telescopic platform 4 through the hinge, and the supporting leg 42 top is provided with the bolt hole, and telescopic platform 4 is provided with corresponding bolt hole, and when supporting leg 42 struts, supporting leg 42 top butt is in telescopic platform 4 bottom surface, and the bolt hole aligns, can fix through the bolt of matching. When the telescopic platform is contracted, the bolts are disassembled again to retract the supporting legs 42, and the two supporting legs 42 are arranged on two sides of the telescopic platform 4 respectively. In this embodiment, in order to realize automatic contraction of the supporting leg 42, a tightener 43 is disposed at the bottom of the telescopic platform 4, the tightener 43 is connected with the bottom end of the supporting leg 42 through a contraction rope 44, and the tightener 43 can fold the supporting leg 42 on the bottom surface of the telescopic platform 4 by recovering the contraction rope 44.
When the telescopic platform 4 is extended, the supporting cylinder 41 and the supporting leg are not yet functional, and the telescopic platform 4 may be unstable due to the weight of one stand. In this embodiment, therefore, for smooth operation of the device, the lifting mechanism 5 is slidably connected to the telescopic platform 4, and the lifting mechanism 5 is connected to a sliding driving mechanism capable of driving the lifting mechanism to slide.
The sliding driving mechanism is a third hydraulic winch 58, and is connected with the third hydraulic winch 58 by bypassing a third pulley arranged at two ends of the telescopic platform 4 through a third connecting line at two sides of the jacking mechanism 5 in a similar driving mode to the telescopic platform 4. And in order to balance and stabilize the conveying vertical frame, the third hydraulic winch 58, the third pulley and the third connecting line are provided with two groups and are arranged at intervals along the vertical direction.
Therefore, the lifting mechanism 5 can not lift up to bear the stand firstly, the telescopic platform 4 stretches to the designated position firstly, after the supporting oil cylinder 41 and the supporting leg 42 all start to act, the lifting mechanism 5 bears the stand above the lifting mechanism again and moves the stand to the corresponding position, and the load of the stand acts on the supporting oil cylinder 41 and the supporting leg 42, so that the stable stress of the device is realized, and the whole device works more stably. Specifically, the lifting mechanism 5 includes a lifting clamping plate 51 for carrying the vertical frame, and a lifting driving mechanism 52 connected to the lower end of the lifting clamping plate 51. The jacking splint 51 upper end is provided with two second curb plates and a swash plate constitution of matching grudging post, and two second curb plates are perpendicular and the interval sets up with the slip direction of climbing mechanism 5, and the swash plate slope sets up in the middle of two second curb plates and sets up perpendicularly with two second curb plates, and the grudging post bears on the swash plate of both sides and carries out supplementary fixing through the bolt of hole installation on the second curb plate, and in order for the swash plate to bear the gravity of grudging post, the swash plate below is plugged into has the skid, and swash plate and skid are provided with corresponding bolt hole in order to pass through the bolt fastening.
The lifting driving mechanism 52 is used for driving the lifting clamping plate 51 and the vertical frame to ascend so as to realize the installation of the vertical frame, the lifting driving mechanism 52 is a hydraulic cylinder, and for lifting the vertical frame more stably and applying force more uniformly, the lifting clamping plate 51 and the lifting driving mechanism 52 are provided with two lifting driving mechanisms, and the lifting driving mechanisms are respectively arranged on two sides of the lifting mechanism 5 in the sliding direction. Of course, due to the interference of the supporting oil cylinder 41, the telescopic platform 4 cannot be completely retracted back onto the base frame 1, so that in order for the stand-up carrying trolley 3 to be able to send the stand above the jacking mechanism 5, the end of the guide rail 2 corresponding to the extending end of the telescopic platform 4, i.e. the right end of fig. 2, exceeds the base frame 1, so that an overlapping area exists between the track of the stand-up carrying trolley 3 and the track of the jacking mechanism 5 to realize the connection of the stand.
Next, a specific structure of the jacking mechanism 5 will be described, as shown in fig. 5 and 8, the lifting driving mechanism 52 includes a fixing portion 522 and a telescopic portion 521 connected to the fixing portion 522 and capable of extending and retracting, the top end of the telescopic portion 521 is connected to the jacking clamping plate 51, the fixing portion 522 is an oil cylinder barrel of a hydraulic oil cylinder, and the telescopic portion 521 is an oil cylinder rod of the hydraulic oil cylinder; the jacking mechanism 5 further comprises a first connecting plate 57, a second connecting plate 53, a first telescopic oil cylinder 55 and a limiting pin 54, a limiting plate 522a is arranged at the upper end of the fixing portion 522, the first connecting plate 57 is fixedly connected with the limiting plates 522a on two sides, the limiting plates 522a are provided with two limiting holes 57a which are arranged at intervals in the sliding direction of the jacking mechanism 5 and are matched with the limiting pins 54 for structural balance, and each first connecting plate 57 is provided with a limiting hole 57a which is matched with the limiting pin 54. The second connecting plate 53 is composed of two connecting side plates and a connecting bottom plate, the two connecting side plates are arranged at intervals along the sliding direction of the jacking mechanism 5, the connecting bottom plate is provided with a yielding hole 53c corresponding to the fixing portion 522, the lower end of the fixing portion 522 is inserted into the yielding hole 53c, the bottom surface of the limiting plate 522a is attached to the connecting bottom plate, the size of the yielding hole 53c is smaller than that of the limiting plate 522a and larger than that of the fixing portion 522, and the fixing portion 522 can move a certain distance in the yielding hole 53 c. The two connecting side plates are provided with limit grooves 53a corresponding to limit holes 57a, the limit grooves 53a vertically extend, the two first connecting plates 57 are arranged between the two connecting side plates, the limit pins 54 penetrate through the limit grooves 53a and are connected with the limit holes 57a in a matched mode, the first telescopic cylinders 55 are arranged between the two first connecting plates 57, one ends of the first telescopic cylinders 55 are connected with the second connecting plates 53, the other ends of the first telescopic cylinders are connected with the limit pins 54, and specifically, the first telescopic cylinders 55 are hinged through first hinge lug pairs 53b on the second connecting plates 53. The telescopic direction of the first telescopic cylinder 55 is vertical. The two lifting driving mechanisms 52, the lifting clamping plates 51 and the two first connecting plates 57 are driven by the first telescopic oil cylinders 55 to vertically move so as to adjust the installation position of the stand. In addition, the pulley frames 56 are arranged on two sides of the lower end of the second connecting plate 53, the jacking rollers 56a are arranged on the inner sides of the two pulley frames 56 opposite to each other, and the jacking rollers 56a on two sides are embedded into the channel steel on two sides of the telescopic platform 4 to realize rolling movement. In this embodiment, preferably, the moving direction of the stand carriage 3, the telescopic direction of the telescopic platform 4, and the sliding direction of the jack-up mechanism 5 are all in the same direction.
The preferred construction of the hoisting device comprising the boom 6 and the hoisting rope 9 is described in detail below from fig. 1, 2, 6 and 7; the bottom end of the suspension arm 6 is hinged on the base frame 1, and the suspension arm 6 is connected with a rotary driving mechanism 8 capable of driving the suspension arm to rotate around a hinged position; in order to realize more stress points and more uniform stress when the vertical frame is lifted, the two suspension arms 6 are arranged at two vertical intervals, and the two suspension arms 6 are respectively arranged on the two outer sides of the guide rail 2, namely, the two guide rails 2 are arranged between the two suspension arms 6. In order to better adjust the vertical position of the lifting arm 6, the top end of the lifting arm 6 can stretch to change the length of the lifting arm 6, and the lifting arm 6 is connected with a second stretching driving mechanism 7 capable of driving the lifting arm to stretch. Specifically, the suspension arm 6 includes an outer suspension arm 61 and an inner suspension arm 62, the outer suspension arm 61 is hollow with a central hole in the center, the inner suspension arm 62 is sleeved in the central hole of the outer suspension arm 61 and can stretch and retract along the length direction of the inner suspension arm 62, and the second stretching driving mechanism 7 is a hydraulic stretching cylinder; the second telescopic driving mechanism 7 has one end connected to the outer boom 61 and the other end connected to the inner boom 62, and the second telescopic driving mechanism 7 is connected to the upper end position of the inner boom 62 so that the inner boom 62 can be retracted more into the outer boom 61. The rotary driving mechanism 8 is a hydraulic telescopic cylinder, one end of the rotary driving mechanism 8 is hinged to the base frame 1, the other end of the rotary driving mechanism is movably connected with the outer boom 61 and can slide along the length direction of the outer boom 61, specifically, two steel plates provided with boom sliding grooves 612 are arranged on the side surface of the outer boom 61 at intervals, the extending direction of the boom sliding grooves 612 is the length direction of the boom 6, connecting holes are formed in the top ends of the rotary driving mechanism 8, the connecting holes are embedded in the middle of the two steel plates and aligned with the boom sliding grooves 612, pin rods are arranged in the connecting holes and the boom sliding grooves 612 in an inserted mode, the rotary driving mechanism 8 is fixedly connected with the pin rods or rotatably connected with the pin rods through the connecting holes, and the limiting rods can move in the sliding grooves to drive one ends of the rotary driving mechanism 8 to move along the sliding grooves. In order to adjust the boom 6 to a certain angle to adapt to the vertical frames with different specifications, the bottom of the outer boom 61 is connected with the base frame 1 through a first hinging seat 12, the outer boom 61 is hinged with the first hinging seat 12, and a circle of bolt holes are uniformly formed in the bottom of the first hinging seat 12 so as to be fixed on the base frame 1 through bolts; the rotary driving mechanism 8 is connected with the base frame 1 through a second hinging seat 13, the rotary driving mechanism 8 is hinged with the second hinging seat 13, the base frame 1 is provided with an arc-shaped track 14 arranged around the first hinging seat 12, the curvature center of the arc-shaped track 14 falls on the axis of the first hinging seat 12, and the second hinging seat 13 is slidably connected on the arc-shaped track 14. When the angle needs to be adjusted, the first hinge seat 12 can be fixed by bolts after being disassembled and rotated by a corresponding angle, the second hinge seat 13 can move on the arc-shaped track 14 to adapt to the first hinge seat 12 after the angle is adjusted, the first hinge seat 12 and the second hinge seat 13 are arranged at intervals along the moving direction of the vertical frame carrying trolley 3, and the second hinge seat 13 is arranged at a position close to the end part of the base frame 1, namely the left end of fig. 2.
The middle part of the lifting rope 9 is wound on the upper end of the suspension arm 6, one end of the lifting rope 9 which extends vertically around the suspension arm 6 is used for being bound with a stand, and the other end of the lifting rope 9 is connected with a lifting rope winding and unwinding driving mechanism 91; for the lifting rope 9 to be more smoothly wound and unwound, the resistance is reduced, the upper end of the side wall of the inner suspension arm 62 is provided with a first pulley 624, the edge of the upper end of the side wall is provided with a first wire passing groove 622 corresponding to the first pulley 624, the edge of the upper end of the side wall opposite to the side wall is provided with a second wire passing groove 621 corresponding to the first wire passing groove 622, the lifting rope 9 sequentially bypasses the first pulley 624, the second wire passing groove 621 and the first wire passing groove 622 from the lifting rope winding and unwinding driving mechanism 91 and finally vertically extends to be used for connecting a vertical frame, a column 626 for reducing the friction resistance is further arranged between the second wire passing groove 621 and the first wire passing groove 622, and the column 626 is higher than the bottoms of the second wire passing groove 621 and the first wire passing groove 622. The lifting rope 9 is sequentially wound on the lifting rope winding and unwinding driving mechanism 91, the first pulley 624, the second wire passing groove 621 and the first wire passing groove 622, and the extending direction is along the rotation direction of the outer suspension arm 61 driven under the condition that the rotation driving mechanism 8 is contracted. In order to better reduce the resistance to the lifting rope 9, the lower end of the side of the outer boom 61 on the same side as the first pulley 624 is provided with a second pulley 611. In the present embodiment, the hoist rope winding and unwinding driving mechanism 91 is a hoist. The boom 6 is matched with the lifting rope 9 and the winch under the action of the rotary driving mechanism 8, the vertical frame can be conveyed to the vertical frame carrying trolley from the side lower part of the base frame 1, and the second telescopic driving mechanism 7 is only used for adjusting the alignment of the vertical frame carrying trolley more easily, and when the boom 6 is folded on the base frame 1 and is not used, the boom 6 does not protrude out of the base frame 1, and is hidden on the base frame 1.
The transverse direction is the extending direction of the guide rail, namely the left-right direction of the view angle of fig. 2, the vertical direction is the up-down direction of the view angle of fig. 4, and the vertical direction is perpendicular to the transverse direction and the plumb direction, namely the lifting direction. In this embodiment, the moving direction of the stand load cart 3, the telescopic direction of the telescopic platform 4, and the sliding direction of the jacking mechanism 5 are all transverse.
The device is automatically controlled, and all the power devices such as the driving mechanism, the winch, the oil cylinder, the hydraulic winch, the tightener and the like are connected with a control system, and the control system controls the work of the whole machine by controlling the power devices.
The working principle of the device is as follows:
when the device is in an operation starting state, the vertical frame carrying trolley 3 is positioned at the left end of the guide rail 2 as shown in fig. 2, the rotary driving mechanism 8 is in a contracted state, the suspension arm 6 is also folded on the base frame 1, the suspension arm 6 is almost parallel to the horizontal plane, the second telescopic driving mechanism 7 is in an extended state, the top end of the suspension arm 6 exceeds the base frame 1 and the guide rail 2, the vertical frame is tied on the lifting rope 9, then the lifting rope winding and unwinding driving mechanism 91 drives the lifting rope 9 to contract, the vertical frame is lifted to a certain height, then the rotary driving mechanism 8 starts to stretch to prop up the suspension arm 6, the suspension arm 6 drives the vertical frame to rotate above the base frame 1, meanwhile, the second telescopic driving mechanism 7 also starts to contract, the vertical frame is aligned with the vertical frame carrying trolley 3 under the action of the rotary driving mechanism 8 and the second telescopic driving mechanism 7, then the lifting rope winding and unwinding driving mechanism 91 starts to unwind the lifting rope, the vertical frame is lowered onto the vertical frame carrying trolley 3, and then the rotary driving mechanism 8 and the second telescopic driving mechanism 7 are reset, and the suspension arm 6 is wound on the base frame 1. The stand carrying trolley 3 then drives the stand to move to the right. Until the stand moves above the jacking mechanism 5 in the retracted state, then the jacking mechanism 5 is not moved, the telescopic platform 4 stretches out, and the support cylinder 41 and the support leg 42 are spread to support the telescopic platform 4. Then the lifting clamp plate 51 is lifted a certain distance to receive the stand on the stand bearing trolley 3, when the stand is separated from the limitation of the stand bearing trolley 3, the lifting mechanism 5 integrally moves rightwards until reaching a designated installation position, the lifting clamp plate 51 starts to lift the stand to the inner wall of the tunnel, and then the stand is manually standing on the telescopic platform 4 to install and fix the stand.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and any modifications or equivalent substitutions without departing from the spirit and scope of the present invention should be covered in the scope of the technical solution of the present invention.
Claims (8)
1. An excavation grudging post hoist mechanism, its characterized in that: comprises a base frame (1), a guide rail (2), a vertical frame bearing trolley (3), a telescopic platform (4), a jacking mechanism (5) and a lifting device;
the telescopic platform (4) is arranged on the base frame (1) in a telescopic manner, and the telescopic platform (4) is connected with a first telescopic driving mechanism capable of driving the telescopic platform to stretch;
the lifting mechanism (5) is connected to the telescopic platform (4) in a sliding manner, the lifting mechanism (5) is connected with a sliding driving mechanism capable of driving the lifting mechanism to slide, the lifting mechanism (5) comprises a lifting clamping plate (51) for bearing the vertical frame and a lifting driving mechanism (52) connected to the lower end of the lifting clamping plate (51), and the lifting driving mechanism (52) is used for driving the lifting clamping plate (51) and the vertical frame to ascend so as to realize the installation of the vertical frame;
the lifting device is used for lifting the vertical frame and conveying the vertical frame to the vertical frame carrying trolley (3);
the guide rail (2) is transversely and fixedly arranged on the base frame (1);
the vertical frame carrying trolley (3) is arranged on the guide rail (2) and can transversely translate and convey the vertical frame along the guide rail (2), the vertical frame carrying trolley (3) is connected with a translation driving mechanism, and the translation driving mechanism can drive the vertical frame arranged on the vertical frame carrying trolley (3) to transversely move and convey the vertical frame to the position above the jacking mechanism (5) in a retracted state;
the lifting driving mechanism (52) comprises a fixed part (522) and a telescopic part (521) which is connected with the fixed part (522) and can be telescopic, and the top end of the telescopic part (521) is connected with the jacking clamping plate (51); the jacking mechanism (5) further comprises a first connecting plate (57), a second connecting plate (53), a first telescopic oil cylinder (55) and a limiting pin (54), wherein the upper end of the fixing part (522) is provided with a limiting plate (522 a), the first connecting plate (57) is fixedly connected with the limiting plate (522 a), the first connecting plate (57) is provided with a limiting hole (57 a) which is matched and installed with the limiting pin (54), the second connecting plate (53) consists of a connecting side plate and a connecting bottom plate, the connecting bottom plate is provided with a yielding hole (53 c) corresponding to the fixing part (522), the lower end of the fixing part (522) is inserted into the yielding hole (53 c) and the bottom surface of the limiting plate (522 a) is attached to the connecting bottom plate, the connecting side plate is provided with a limiting groove (53 a) corresponding to the limiting hole (57 a), one end of the first telescopic oil cylinder (55) is connected with the second connecting plate (53) in a matching way, the other end of the first telescopic oil cylinder (55) is connected with the limiting pin (54) in a matching way, and the first telescopic oil cylinder (55) can move along the lower telescopic oil cylinder (51) along the limiting groove (53 a);
the bottom of the extending tail end of the telescopic platform (4) is provided with a supporting oil cylinder (41).
2. The excavation stand hoisting mechanism of claim 1, wherein: the bottom of the middle end of the telescopic platform (4) is provided with telescopic supporting legs (42), and the supporting legs (42) can be folded on the bottom surface of the telescopic platform (4).
3. The excavation stand hoisting mechanism of claim 2, wherein: supporting leg (42) set up in flexible platform (4) bottom surface lateral part, supporting leg (42) top is articulated with flexible platform (4) bottom surface, flexible platform (4) bottom is provided with turn-buckle (43), turn-buckle (43) are connected through shrink rope (44) with supporting leg (42) lower extreme.
4. The excavation stand hoisting mechanism of claim 1, wherein: the lifting device comprises a suspension arm (6) and a suspension rope (9); the bottom end of the suspension arm (6) is hinged on the base frame (1), the top end of the suspension arm (6) can stretch to change the length of the suspension arm (6), the suspension arm (6) is connected with a second stretching driving mechanism (7) capable of driving the suspension arm to stretch, and the suspension arm (6) is connected with a rotating driving mechanism (8) capable of driving the suspension arm to rotate around the hinged position; the middle part of the lifting rope (9) is wound at the upper end of the suspension arm (6), one end of the lifting rope (9) which winds the suspension arm (6) and extends vertically is used for binding the stand, and the other end of the lifting rope is connected with a lifting rope winding and unwinding driving mechanism (91).
5. The excavation stand hoisting mechanism of claim 4, wherein: the suspension arm (6) comprises an outer suspension arm (61) and an inner suspension arm (62), the outer suspension arm (61) is hollow, a central hole is formed in the center of the outer suspension arm, the inner suspension arm (62) is sleeved in the central hole of the outer suspension arm (61), and the second telescopic driving mechanism (7) is a hydraulic telescopic oil cylinder; one end of the second telescopic driving mechanism (7) is connected with the outer suspension arm (61), and the other end of the second telescopic driving mechanism is connected with the inner suspension arm (62).
6. The excavation stand hoisting mechanism of claim 5, wherein: the rotary driving mechanism (8) is a hydraulic telescopic oil cylinder, one end of the rotary driving mechanism (8) is hinged with the base frame (1), and the other end of the rotary driving mechanism is movably connected with the outer suspension arm (61) and can slide along the length direction of the outer suspension arm (61).
7. The excavation stand hoisting mechanism of claim 6, wherein: the bottom of the outer suspension arm (61) is connected with the base frame (1) through a first hinging seat (12), the outer suspension arm (61) is hinged with the first hinging seat (12), and a circle of bolt holes are uniformly formed in the bottom of the first hinging seat (12) so as to be fixed on the base frame (1) through bolts; the rotary driving mechanism (8) is connected with the base frame (1) through a second hinging seat (13), the rotary driving mechanism (8) is hinged with the second hinging seat (13), the base frame (1) is provided with an arc-shaped track (14) which is arranged around the first hinging seat (12), and the second hinging seat (13) is slidably connected on the arc-shaped track (14).
8. The excavation stand hoisting mechanism of claim 7, wherein: the inner suspension arm (62) is characterized in that a first pulley (624) is arranged at the upper end of the side wall of the inner suspension arm (62), a first wire passing groove (622) corresponding to the first pulley (624) is formed in the edge of the upper end of the side wall, a second wire passing groove (621) corresponding to the first wire passing groove (622) is formed in the edge of the upper end of the side wall opposite to the side wall, and the lifting rope (9) sequentially bypasses the first pulley (624), the second wire passing groove (621) and the first wire passing groove (622) from the lifting rope winding and unwinding driving mechanism (91) and finally vertically extends to be used for connecting the stand.
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| CN201810792844.2A CN109051848B (en) | 2018-07-18 | 2018-07-18 | Excavation grudging post hoist mechanism |
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| CN201810792844.2A CN109051848B (en) | 2018-07-18 | 2018-07-18 | Excavation grudging post hoist mechanism |
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| CN109051848A CN109051848A (en) | 2018-12-21 |
| CN109051848B true CN109051848B (en) | 2024-01-05 |
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| CN109051848A (en) | 2018-12-21 |
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