CN107447680B - Vehicle-mounted traction and lifting combined device for bridge construction - Google Patents
Vehicle-mounted traction and lifting combined device for bridge construction Download PDFInfo
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- CN107447680B CN107447680B CN201710906268.5A CN201710906268A CN107447680B CN 107447680 B CN107447680 B CN 107447680B CN 201710906268 A CN201710906268 A CN 201710906268A CN 107447680 B CN107447680 B CN 107447680B
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- 238000010276 construction Methods 0.000 title claims abstract description 20
- 239000000725 suspension Substances 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The vehicle-mounted traction and lifting combined device for bridge construction comprises a left driving shaft, a main driving shaft and a right driving shaft which are sequentially arranged from left to right and have the same central line, wherein a traction roller is arranged on the left driving shaft, a hydraulic brake is arranged on the left driving shaft, a traction rope is wound on the traction roller, a lifting roller is fixedly arranged on the right driving shaft in a coaxial direction, and a lifting rope is wound on the lifting roller; a lifting three-dimensional frame is fixedly arranged on the left side of the top of the upper frame, and a left-right horizontal telescopic hydraulic telescopic suspension arm is arranged on the top of the lifting three-dimensional frame; a first hydraulic drive type clutch is arranged between the left end of the main driving shaft and the right end of the left driving shaft, and a second hydraulic drive type clutch is arranged between the right end of the main driving shaft and the right end of the right driving shaft. The invention combines the traction and the hoisting into a whole, can simultaneously or respectively carry out the operation of the traction and the hoisting, is arranged on the frame girder of the engineering truck, and has the advantages of reducing the labor intensity of workers, having strong flexibility and improving the construction efficiency.
Description
Technical Field
The invention belongs to the technical field of road and bridge construction, and particularly relates to a vehicle-mounted traction and lifting combined device for bridge construction.
Background
The traction equipment and the lifting equipment are often used in the construction process of bridges (including viaducts in cities), the existing traction equipment and the lifting equipment are independently arranged and are fixed on the ground in the operation process, so that the bridge not only occupies a large place, but also is poor in flexibility, and the bridge is often required to be detached and then installed when used in different places, so that the construction efficiency is affected, and the labor intensity of workers is increased.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides the vehicle-mounted traction and lifting combined device for bridge construction, which is fixedly arranged on an engineering vehicle, has strong flexibility and high reliability, can improve the construction efficiency and lighten the labor intensity.
In order to solve the technical problems, the invention adopts the following technical scheme: the vehicle-mounted traction and lifting combined device for bridge construction comprises a lower frame and an upper frame which are horizontally arranged, wherein a left frame and a right frame are fixedly arranged on the left side and the right side between the lower frame and the upper frame respectively, a driving motor and a gearbox are arranged on the lower frame, a first support frame, a second support frame, a third support frame and a fourth support frame are sequentially arranged on the upper surface of the lower frame from left to right between the left frame and the right frame, the tops of the second support frame and the third support frame are fixedly connected with the lower surface of the upper frame, a first bearing seat is arranged on the right side of the left frame, a second bearing seat is arranged on the first support frame, a third bearing seat is arranged on the second support frame, a fourth bearing seat is arranged on the third support frame, a fifth bearing seat is arranged on the fourth support frame, a sixth bearing seat is arranged on the left side of the right frame, and the central lines of the first bearing seat, the second bearing seat, the third bearing seat, the fourth bearing seat and the fifth bearing seat are overlapped and the central lines of the sixth bearing seat are horizontally arranged along the left and right directions;
the first bearing seat and the second bearing seat are rotationally connected with a left driving shaft of which the right end stretches out of the second bearing seat rightwards through bearings, the third bearing seat and the fourth bearing seat are rotationally connected with a main driving shaft through bearings, the fifth bearing seat and the sixth bearing seat are rotationally connected with a right driving shaft of which the left end stretches out of the fifth bearing seat leftwards through bearings, the left end of the main driving shaft stretches out of the third bearing seat leftwards, the right end of the main driving shaft stretches out of the fourth bearing seat rightwards, a driven sprocket is coaxially and fixedly arranged on the main driving shaft, a traction roller is coaxially and fixedly arranged on the left driving shaft, a hydraulic brake positioned on the right side of the traction roller is arranged on the left driving shaft, a traction rope is wound on the traction roller, a traction hook is connected with the movable end of the traction rope, a lifting roller is coaxially and fixedly arranged on the right driving shaft, and a lifting rope is wound on the lifting roller;
the main shaft of the driving motor is in transmission connection with the power input shaft of the gearbox, a driving sprocket is arranged on the power output shaft of the gearbox, and the driving sprocket is in transmission connection with the driven sprocket through a chain;
the left side of the top of the upper frame is fixedly provided with a lifting three-dimensional frame, the top of the lifting three-dimensional frame is provided with a left-right horizontal telescopic hydraulic telescopic suspension arm, the left end of the hydraulic telescopic suspension arm is provided with a first fixed pulley, the right side of the top of the lifting three-dimensional frame is provided with a second fixed pulley, and the movable end of a lifting rope is connected with a lifting hook positioned at the left side of the lifting three-dimensional frame after sequentially bypassing the second fixed pulley and the first fixed pulley by a lifting roller;
a first hydraulic drive type clutch is arranged between the left end of the main driving shaft and the right end of the left driving shaft, a second hydraulic drive type clutch is arranged between the right end of the main driving shaft and the right end of the right driving shaft,
the right side at the top of the upper frame is fixedly provided with a diesel engine, a generator and a hydraulic station, the power output end of the diesel engine is in transmission connection with the power input end of the generator, the generator supplies power for the hydraulic station and a driving motor, and the hydraulic station provides power for a hydraulic brake, a hydraulic telescopic boom, a first hydraulic driving clutch and a second hydraulic driving clutch.
The hydraulic brake comprises a connecting sleeve coaxially arranged on a left driving shaft through a spline structure, the outer circumference of the connecting sleeve is fixedly connected with a connecting disc in the same axial direction, the outer circumference of the connecting disc is fixedly connected with a cylinder in the same axial direction, the open end of the cylinder faces to a second bearing seat, a positioning shaft which is parallel to the left driving shaft and stretches into the lower part in the cylinder is fixedly arranged on the left side of the upper part of the first supporting frame, a front brake shoe and a rear brake shoe which are positioned in the cylinder are rotationally connected on the positioning shaft, the whole front brake shoe and the whole rear brake shoe are of semicircular structures, friction plates are fixedly arranged on the outer circumferential surfaces of the front brake shoe and the rear brake shoe through countersunk head screws, gaps are reserved between the outer circumferential surfaces of the friction plates and the inner wall of the cylinder, a brake cylinder is horizontally arranged between the upper parts of the front brake shoe and the rear brake shoe, and a cylinder body and a piston rod of the brake cylinder are hinged with the rear side of the front brake shoe and the front side of the rear brake shoe respectively.
The hydraulic telescopic boom comprises a telescopic oil cylinder and two fixed square pipes which are horizontally arranged along the left-right direction, the two fixed square pipes are fixedly arranged at the top of the lifting three-dimensional frame, a movable square pipe is arranged in each fixed square pipe in a penetrating manner, the left ends of the two movable square pipes extend out of the fixed square pipes, a supporting square pipe is fixedly arranged at the top of the left ends of the two movable square pipes, a pulley frame is arranged on the supporting square pipes, a first fixed pulley is rotationally connected to the pulley frame, a rope-falling preventing U-shaped clamp is arranged on the pulley frame, guide holes are formed in the left bottom of each fixed square pipe along the left-right horizontal direction, guide blocks penetrating through the guide holes are fixedly arranged at the bottom of each movable square pipe, the two guide blocks are connected through a driving rod positioned below the fixed square pipes, the telescopic oil cylinder is parallel to the fixed square pipes and positioned below the middle of the two fixed square pipes, and the cylinder body of the telescopic oil cylinder is hinged to the upper right side of the lifting three-dimensional frame, and the piston rod of the telescopic oil cylinder is hinged to the right side of the middle part of the driving rod.
The first hydraulic drive clutch and the second hydraulic drive clutch have the same structure and are symmetrically arranged left and right;
the second hydraulic drive clutch comprises a mounting plate, a rotating disk, a clutch shifting mechanism and a shifting fork wheel assembly, wherein the mounting plate is horizontally and fixedly arranged at the bottom of the upper frame, two mounting sleeves are fixedly arranged on the lower surface of the mounting plate, the central lines of the two mounting sleeves coincide and are respectively arranged along the front and rear horizontal directions, the rotating disk is coaxially and fixedly arranged at the right end part of the main driving shaft, and a plurality of clutch teeth are fixedly arranged on the right side surface of the rotating disk along the circumferential direction; the shifting fork wheel assembly comprises a mounting wheel positioned between a fifth bearing seat and clutch teeth, an annular clamping groove is formed in the outer circumferential surface of the mounting wheel, a key groove is formed in the right driving shaft on the left side of the fifth bearing seat along the axial direction, the inner wall of the mounting wheel is coaxially arranged on the right driving shaft through a flat key assembled in the key groove, a gap is reserved between the flat key and the key groove, shifting fork teeth which are identical to the number of the clutch teeth and are correspondingly clamped and meshed are fixed on the left side of the mounting wheel along the circumferential direction, and a clutch shifting mechanism is arranged on two mounting sleeves and is in transmission connection with the mounting wheel.
The clutch toggle mechanism comprises a coupling sleeve, a shifting fork and a shifting fork shaft; the coupling sleeve comprises a coupling sleeve and a driving plate, two first threaded holes are formed in the coupling sleeve along the radial direction, the central lines of the two first threaded holes are mutually perpendicular, the driving plate is fixed on the outer surface of the coupling sleeve, and the central line of the coupling sleeve is perpendicular to the plane where the driving plate is located; the shifting fork comprises a shifting fork sleeve and two shifting levers, two second threaded holes are formed in the shifting fork sleeve along the radial direction, the two shifting levers are parallel and are all arranged along the radial direction of the shifting fork sleeve, and third threaded holes with the central lines parallel to the shifting fork sleeve are respectively formed in the two shifting levers; the shift fork sleeve is located between two installation sleeves, the shaft sleeve, the shift fork sleeve and the installation sleeves are provided with the same center line, two fourth threaded holes are formed in the shift fork shaft, the shift fork shaft is inserted into the installation sleeves, the shaft sleeve and the shift fork sleeve, the shaft sleeve is located between the two installation sleeves, the shift fork sleeve is located at the rear side of the installation sleeve at the rear side, each first threaded hole is connected with a jacking bolt in a threaded mode, the inner ends of the jacking bolts are jacked on the shift fork shaft, two second threaded holes and the two fourth threaded holes are in one-to-one correspondence, each second threaded hole and the corresponding fourth threaded hole are connected with one connecting bolt in a threaded mode, two shift rods are located on the front side and the rear side of the outer circumference of the installation wheel, each third threaded hole is connected with one shifting bolt in a threaded mode, and each inner end of each shifting bolt is provided with a shifting bearing extending into the clamping groove in the same axial direction.
The drive plate sets up towards the right side, and mounting panel right side top is provided with the mount, is provided with the separation and reunion actuating cylinder that is located drive plate right side top on the mount, and separation and reunion actuating cylinder's cylinder body and piston rod are articulated with the right-hand member top of mount and drive plate respectively.
Reinforcing rib plates are arranged between the right side of the left frame and the left side of the right frame and the top of the lower frame.
By adopting the technical scheme, the lower frame is fixedly arranged on the frame girder at the rear side of the engineering vehicle through the mounting bolts. The driving engineering truck can conveniently move at a construction site, and the driving engineering truck can be started where the hoisting or traction operation is needed. During traction and/or hoisting operations, the engine needs to be started to supply power for the driving motor and the hydraulic station through the generator.
The working process of the invention is as follows: when lifting operation is needed (such as loading a heavy object onto a transport vehicle or unloading the heavy object from the transport vehicle), the transport vehicle parks after being driven to a proper position, the heavy object to be lifted is supposed to be positioned at the left side of the transport vehicle, the clutch teeth and the shifting fork teeth of the first hydraulic drive type clutch are separated, the telescopic cylinder is started firstly, the piston rod of the telescopic cylinder stretches to push the driving rod to move leftwards, the driving rod drives the two movable square pipes to move leftwards through the guide block which moves leftwards along the guide block, the telescopic cylinder stops after the two movable square pipes stretch leftwards by a certain length, then the clutch driving cylinder of the second hydraulic drive type clutch is started, the piston rod of the clutch driving cylinder stretches downwards to drive the driving plate to rotate downwards, the driving plate drives the sleeve of the coupling shaft, and the sleeve of the coupling shaft is driven to rotate due to the fact that the inner end of the pushing bolt is pushed against the shifting fork shaft, the sleeve of the coupling shaft is driven to rotate, the shifting fork sleeve is connected with the shifting fork shaft through the connecting bolt, the shifting fork sleeve is driven to rotate by a certain angle, and the shifting fork sleeve of the shifting fork is driven by the shifting fork shaft to rotate leftwards, and the shifting bearing on the shifting fork sleeve drives the mounting wheel to move leftwards along the right driving shaft; then starting a driving motor, reversing the driving motor, driving a gearbox by the driving motor, transmitting rotary power to a main driving shaft by the gearbox through a chain rotating mechanism, transmitting power to a right driving shaft by the main driving shaft through a shifting fork tooth and a clutch tooth, rotating a lifting roller along with the clutch roller, loosening a lifting rope wound on the lifting roller, enabling a lifting hook to move downwards by gravity, stopping the driving motor after the lifting hook is hung with a heavy object, starting the driving motor to rotate forwards after the lifting roller rotates forwards to wind the lifting rope onto the lifting roller, and after the lifting hook lifts the heavy object to a certain height upwards, starting a telescopic cylinder again when unloading from a transport vehicle, contracting a piston rod of the telescopic cylinder, and restarting the driving motor to reverse when the heavy object moves rightwards to the upper part leaving the transport vehicle along with a movable square pipe, so that the heavy object slowly falls to the ground; when loading goods from the ground to the transport vehicle, the telescopic oil cylinder is restarted, the piston rod of the telescopic oil cylinder stretches again, and when the heavy object moves rightwards and upwards to a proper position above the transport vehicle along with the movable square pipe, the driving motor is restarted to reversely rotate, so that the heavy object slowly falls onto the transport vehicle.
When traction operation is needed, the clutch teeth and the shifting fork teeth of the second hydraulic drive clutch are ensured to be separated, the clutch teeth and the shifting fork teeth of the first hydraulic drive clutch are combined according to the mode of controlling the first hydraulic drive clutch, the driving motor is reversely started, the traction hook and the traction rope are pulled to a place needing traction from the traction roller, the traction hook is used for hooking an object to be traction, the driving motor is reversely started, and the traction roller rotates, so that traction or tensioning operation can be carried out. When the traction operation is needed to be suspended after the traction is carried out to a certain position, a brake cylinder is started, a piston rod of the brake cylinder stretches, a front brake shoe and a rear brake shoe are driven to be outwards opened by taking a positioning shaft as a central line, friction plates on the outer surfaces of the front brake shoe and the rear brake shoe are in pressing contact with the inner surface of a cylinder body, so that a left driving shaft and a main driving shaft are braked and fixed with a first supporting frame, a driving motor can be closed at the moment, and a gearbox has a self-locking function, so that the safety and the reliability of the traction or tensioning operation can be ensured. The hydraulic brake can also play a role in safety protection in the event of an emergency.
The hydraulic brake of the invention adopts the extension of the brake cylinder to drive the front brake shoe and the rear brake shoe to open and press with the cylinder body, and brakes the left driving shaft through the connecting disc and the connecting sleeve. The connecting sleeve is connected with the left driving shaft through a spline structure, so that the braking reliability is ensured. The right end of the positioning shaft is fixedly connected to the first supporting frame, so that the cylinder body is fixed with the first supporting frame into a whole through the positioning shaft after braking. The friction lines on the inner wall of the cylinder body are in press fit with the friction plates, so that good anti-skid braking performance is achieved, after the friction plates are worn, the friction plates can be replaced by unscrewing countersunk screws, and the installation and the disassembly are convenient.
Because the hydraulic telescopic boom is fixedly arranged on the engineering truck, the two movable square pipes are driven to move leftwards by the telescopic oil cylinder to extend out to form the cantilever crane during operation, and the telescopic oil cylinder also plays a role in preventing the movable square pipes from moving rightwards during hoisting operation. The two movable square tubes are arranged, so that the weight of lifting operation can be fully enhanced, and the fixed square tubes play a role in guiding and bearing to ensure that the movable square tubes are firmly fixed in the lifting operation process.
The first hydraulic drive type clutch and the second hydraulic drive type clutch both adopt a hydraulic drive mode and the lever principle to enable the shifting fork teeth and the clutch teeth to be combined and separated. The components of the first hydraulic drive clutch and the second hydraulic drive clutch are assembled in a split mode, so that the clutch is convenient to manufacture, install and disassemble.
Because the part of stirring the bolt and stretching into the draw-in groove is provided with and stirs the bearing, when stirring the bearing and driving the installation wheel to move about, stir the outer lane of bearing and can rotate along with the installation wheel to reduce the wearing and tearing between the draw-in groove lateral wall of stirring the bolt inner and the installation wheel.
In summary, the invention combines the traction (hoisting) and the hoisting into a whole, and the traction and the hoisting can be operated simultaneously or separately and are arranged on the frame girder of the engineering truck, thereby having the advantages of reducing the labor intensity of workers, having strong flexibility and improving the construction efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a right side view of the hydraulic brake of FIG. 1;
FIG. 3 is a top view of the hydraulically telescoping boom of FIG. 1;
FIG. 4 is an enlarged view of the second hydraulically driven clutch of FIG. 1;
FIG. 5 is a left side view of the mounting plate and mounting sleeve of FIG. 4;
FIG. 6 is a schematic structural view of a coupling sleeve;
FIG. 7 is a schematic structural view of a fork;
fig. 8 is a schematic structural view of the shift rail.
Detailed Description
As shown in fig. 1-8, the vehicle-mounted traction and lifting combined device for bridge construction comprises a lower frame 1 and an upper frame 2 which are horizontally arranged, wherein a left frame 3 and a right frame 4 are fixedly arranged on the left side and the right side between the lower frame 1 and the upper frame 2 respectively, a driving motor 5 and a gearbox 6 are arranged on the lower frame 1, a first support frame 7, a second support frame 8, a third support frame 9 and a fourth support frame 10 are sequentially arranged on the upper surface of the lower frame 1 between the left frame 3 and the right frame 4 from left to right, wherein the tops of the second support frame 8 and the third support frame 9 are fixedly connected with the lower surface of the upper frame 2, a first bearing seat 11 is arranged on the right side of the left frame 3, a second bearing seat 12 is arranged on the first support frame 7, a third bearing seat 13 is arranged on the second support frame 8, a fourth bearing seat 14 is arranged on the fourth support frame 10, a fifth bearing seat 15 is arranged on the left side of the right frame 4, a sixth bearing seat 16 is arranged on the left side of the right frame 4, and the first bearing seat 11, the second bearing seat 12, the fourth bearing seat 13, the fifth bearing seat 14 and the sixth bearing seat 15 are overlapped with the left bearing seat 16 along the horizontal center line;
the first bearing seat 11 and the second bearing seat 12 are rotatably connected with a left driving shaft 17, the right end of which extends out of the second bearing seat 12 rightward, through bearings, the third bearing seat 13 and the fourth bearing seat 14 are rotatably connected with a main driving shaft 18 through bearings, the fifth bearing seat 15 and the sixth bearing seat 16 are rotatably connected with a right driving shaft 19, the left end of the main driving shaft 18 extends out of the third bearing seat 13 leftward, the right end of the main driving shaft 18 extends out of the fourth bearing seat 14 rightward, the main driving shaft 18 is coaxially and fixedly provided with a driven chain wheel 20, the left driving shaft 17 is coaxially and fixedly provided with a traction roller 21, the left driving shaft 17 is provided with a hydraulic brake 22 positioned on the right side of the traction roller 21, the traction roller 21 is wound with a traction rope 23, the movable end of the traction rope 23 is connected with a traction hook 24, the right driving shaft 19 is coaxially and fixedly provided with a lifting roller 25, and the lifting roller 25 is wound with a lifting rope 26;
the main shaft of the driving motor 5 is in transmission connection with the power input shaft of the gearbox 6, a driving sprocket 27 is arranged on the power output shaft of the gearbox 6, and the driving sprocket 27 is in transmission connection with the driven sprocket 20 through a chain 28;
a lifting three-dimensional frame 29 is fixedly arranged on the left side of the top of the upper frame 2, a left-right horizontal telescopic hydraulic telescopic boom is arranged on the top of the lifting three-dimensional frame 29, a first fixed pulley 30 is arranged at the left end of the hydraulic telescopic boom, a second fixed pulley 31 is arranged on the right side of the top of the lifting three-dimensional frame 29, and a lifting hook 32 positioned on the left side of the lifting three-dimensional frame 29 is connected after the movable end of a lifting rope 26 sequentially bypasses the second fixed pulley 31 and the first fixed pulley 30 by a lifting roller 25;
a first hydraulically driven clutch 33 is provided between the left end of the main drive shaft 18 and the right end of the left drive shaft 17, a second hydraulically driven clutch 34 is provided between the right end of the main drive shaft 18 and the right end of the right drive shaft 19,
the right side at the top of the upper frame 2 is fixedly provided with a diesel engine 35, a generator and a hydraulic station 36, the power output end of the diesel engine 35 is in transmission connection with the power input end of the generator, the generator supplies power for the hydraulic station 36 and the driving motor 5, and the hydraulic station 36 supplies power for the hydraulic brake 22, the hydraulic telescopic boom, the first hydraulic driving clutch 33 and the second hydraulic driving clutch 34.
The hydraulic brake 22 comprises a connecting sleeve 38 coaxially arranged on a left driving shaft 17 through a spline structure 37, the outer circumference of the connecting sleeve 38 is fixedly connected with a connecting disc 39 in the same axial direction, the outer circumference of the connecting disc 39 is fixedly connected with a cylinder body 40 in the same axial direction, the open end of the cylinder body 40 faces to the second bearing seat 12, a positioning shaft 41 which is parallel to the left driving shaft 17 and stretches into the inner lower part of the cylinder body 40 is fixedly arranged on the left side of the upper part of the first supporting frame 7, a front brake shoe 42 and a rear brake shoe 43 which are positioned in the cylinder body 40 are rotatably connected on the positioning shaft 41, the whole front brake shoe 42 and the whole rear brake shoe 43 are of semicircular structures, friction plates 45 are fixedly arranged on the outer circumferential surfaces of the front brake shoe 42 and the rear brake shoe 43 through countersunk screws 44, gaps are formed between the outer circumferential surfaces of the friction plates 45 and the inner wall of the cylinder body 40, friction patterns matched with the friction plates 45 are formed in the inner wall of the cylinder body 40, a brake cylinder 46 is horizontally arranged between the upper parts of the front brake shoe 42 and the rear brake shoe 43, and a cylinder body and a piston rod of the brake cylinder 46 are hinged with the rear side of the front brake shoe 42 and the rear brake shoe 43 respectively.
The hydraulic telescopic boom comprises a telescopic oil cylinder 47 and two fixed square pipes 48 which are horizontally arranged along the left-right direction, the two fixed square pipes 48 are fixedly arranged at the top of a lifting three-dimensional frame 29, a movable square pipe 49 is arranged in each fixed square pipe 48 in a penetrating manner, the left ends of the two movable square pipes 49 extend out of the fixed square pipes 48, the tops of the left ends of the two movable square pipes 49 are fixedly provided with support square pipes 50, a pulley frame is arranged on the support square pipes 50, a first fixed pulley 30 is rotationally connected to the pulley frame, a pull-out-preventing U-shaped clamp 52 is arranged on the pulley frame, guide holes 53 are formed in the left bottom of each fixed square pipe 48 along the left-right horizontal direction, guide blocks 54 penetrating through the guide holes 53 are fixedly arranged at the bottom of each movable square pipe 49, the two guide blocks 54 are connected through a driving rod 55 positioned below the fixed square pipes 48, the telescopic oil cylinder 47 is parallel to the fixed square pipes 48 and positioned below the middle of the two fixed square pipes 48, a cylinder body of the telescopic oil cylinder 47 is hinged to the right upper part of the lifting three-dimensional frame 29, and a piston rod of the telescopic oil cylinder 47 is hinged to the right side of the driving rod 55.
The first hydraulically driven clutch 33 and the second hydraulically driven clutch 34 are identical in construction and are symmetrically arranged left and right;
the second hydraulic drive clutch 34 comprises a mounting plate 56, a rotating disk 57, a clutch toggle mechanism and a shifting fork wheel assembly, wherein the mounting plate 56 is horizontally and fixedly arranged at the bottom of the upper frame 2, two mounting sleeves 58 are fixedly arranged on the lower surface of the mounting plate 56, the central lines of the two mounting sleeves 58 are overlapped and are respectively arranged along the front and rear horizontal direction, the rotating disk 57 is coaxially and fixedly arranged at the right end part of the main driving shaft 18, and a plurality of clutch teeth 59 are fixedly arranged on the right side surface of the rotating disk 57 along the circumferential direction; the shift fork wheel assembly comprises a mounting wheel 60 positioned between a fifth bearing seat 15 and clutch teeth 59, an annular clamping groove 61 is formed in the outer circumferential surface of the mounting wheel 60, a key groove 62 is formed in the right driving shaft 19 on the left side of the fifth bearing seat 15 along the axial direction, the inner wall of the mounting wheel 60 is coaxially arranged on the right driving shaft 19 through a flat key assembled in the key groove 62, a gap is reserved between the flat key and the key groove 62, shift fork teeth 63 which are the same in number with the clutch teeth 59 and are correspondingly clamped and meshed are fixed on the left side of the mounting wheel 60 along the circumferential direction, and a clutch toggle mechanism is arranged on the two mounting sleeves and is in transmission connection with the mounting wheel 60.
The clutch toggle mechanism comprises a coupling sleeve, a shifting fork and a shifting fork shaft 64; the coupling sleeve comprises a coupling sleeve 65 and a driving plate 66, two first threaded holes 67 are formed in the coupling sleeve 65 along the radial direction, the central lines of the two first threaded holes 67 are perpendicular to each other, the driving plate 66 is fixed on the outer surface of the coupling sleeve 65, and the central line of the coupling sleeve 65 is perpendicular to the plane where the driving plate 66 is located; the shifting fork comprises a shifting fork sleeve 68 and two shifting levers 69, two second threaded holes 70 are formed in the shifting fork sleeve 68 along the radial direction, the two shifting levers 69 are parallel and are all arranged along the shifting fork sleeve 68 along the radial direction, and third threaded holes 71 with the central lines parallel to the shifting fork sleeve 68 are respectively formed in the two shifting levers 69; the shift fork sleeve 68 is positioned between the two mounting sleeves 58, the shaft sleeve 65, the shift fork sleeve 68 and the mounting sleeves 58 have the same center line, two fourth threaded holes 72 are formed in the shift fork shaft 64, the shift fork shaft 64 is inserted into the mounting sleeves 58, the shaft sleeve 65 and the shift fork sleeve 68, the shaft sleeve 65 is positioned between the two mounting sleeves 58, the shift fork sleeve 68 is positioned at the rear side of the mounting sleeve 58, each first threaded hole 67 is internally and respectively provided with a jacking bolt 73 in a threaded manner, the inner ends of the jacking bolts 73 are jacked on the shift fork shaft 64, two second threaded holes 70 and the two fourth threaded holes 72 are in one-to-one correspondence, each second threaded hole 70 and the corresponding fourth threaded hole 72 are internally and respectively provided with a connecting bolt 74, the two shift rods 69 are positioned at the front side and the rear side of the outer circumference of the mounting wheel 60, the two third threaded holes 71 are internally and respectively provided with a shifting bolt 75, and the inner ends of the bolts 75 are coaxially provided with shifting bearings 76 which extend into the clamping grooves 61.
The driving plate 66 is arranged towards the right, a fixing frame 77 is arranged at the top of the right side of the mounting plate 56, a clutch driving oil cylinder 78 positioned above the right side of the driving plate 66 is arranged on the fixing frame 77, and a cylinder body and a piston rod of the clutch driving oil cylinder 78 are hinged with the fixing frame 77 and the top of the right end of the driving plate 66 respectively.
Reinforcing rib plates 79 are arranged between the right side of the left frame 3 and the left side of the right frame 4 and the top of the lower frame 1.
The lower frame 1 is fixedly arranged on a frame girder at the rear side of an engineering vehicle through a mounting bolt. The driving engineering truck can conveniently move at a construction site, and the driving engineering truck can be started where the hoisting or traction operation is needed. During the towing and/or hoisting operations, the engine needs to be started to supply the drive motor 5 and the hydraulic station 36 with power via the generator.
The working process of the invention is as follows: when lifting operation is needed (for example, heavy objects are loaded on a transport vehicle or unloaded from the transport vehicle), the transport vehicle is parked after being driven to a proper position, the heavy objects to be lifted are supposed to be positioned on the left side of the transport vehicle, the clutch teeth 59 and the shifting fork teeth 63 of the first hydraulic drive type clutch 33 are separated, the telescopic cylinder 47 is started firstly, the piston rod of the telescopic cylinder 47 is stretched to push the driving rod 55 to move leftwards, the driving rod 55 drives the two movable square tubes 49 to move leftwards through the guide block 54 which moves leftwards along the guide block 54, the telescopic cylinder 47 is stopped after the two movable square tubes 49 are stretched leftwards by a certain length, then the clutch driving cylinder 78 of the second hydraulic drive type clutch 34 is started, the piston rod of the clutch driving cylinder 78 is stretched downwards to drive the driving plate 66 to rotate downwards, the driving plate 66 drives the sleeve 65 to rotate, the inner end of the jack bolt 73 is pressed on the shifting fork shaft 64 due to the fact that the jack bolt 73 is arranged on the sleeve 65, the sleeve 65 rotates to drive the shifting fork 64 to rotate, the sleeve 68 is connected with the shifting fork 64 through the connecting bolt 74, the shifting fork shaft 64 rotates to drive the sleeve 68 to rotate a certain angle, the sleeve 68 is driven to rotate leftwards, the shifting fork 69 is driven to rotate, and the shifting fork teeth 60 are arranged on the bearing sleeve 60 to rotate leftwards, and the shifting fork 60 is combined with the shifting fork teeth 60 to be arranged on the driving rod 60; then starting the driving motor 5, the driving motor 5 reversely rotates firstly, the driving motor 5 drives the gearbox 6, the gearbox 6 transmits rotary power to the main driving shaft 18 through a chain 28 rotating mechanism, the main driving shaft 18 transmits power to the right driving shaft 19 through a shifting fork tooth 63 and a clutch tooth 59, the lifting roller 25 rotates along with the clutch roller, a lifting rope 26 wound on the lifting roller 25 is loosened, the lifting hook 32 moves downwards by gravity, the driving motor 5 is stopped after the lifting hook 32 can hang a heavy object, after the lifting hook 32 hangs the heavy object, the driving motor 5 is started to rotate positively, the lifting roller 25 rotates positively to wind the lifting rope on the lifting roller 25, after the lifting hook 32 lifts the heavy object to a certain height, when unloading from the transport vehicle, the telescopic oil cylinder 47 is restarted, the piston rod of the telescopic oil cylinder 47 is contracted, when the heavy object moves rightwards to be away from the upper part of the transport vehicle along with the movable square tube 49, the driving motor 5 is restarted to reversely rotate, and the heavy object is slowly dropped onto the ground; when loading goods from the ground to the transport vehicle, the telescopic oil cylinder 47 is restarted, the piston rod of the telescopic oil cylinder 47 is stretched again, and when the heavy object moves to the right along with the movable square pipe 49 and upwards to a proper position above the transport vehicle, the driving motor 5 is restarted to reversely rotate, so that the heavy object slowly falls onto the transport vehicle.
When the traction operation is required, the clutch teeth 59 and the shifting fork teeth 63 of the second hydraulic drive clutch 34 are ensured to be separated, the clutch teeth 59 and the shifting fork teeth 63 of the first hydraulic drive clutch 33 are combined according to the mode of controlling the first hydraulic drive clutch 33, the driving motor 5 is reversely started, the traction hook 24 and the traction rope 23 are pulled to a place needing traction from the traction roller 21, the traction hook 24 is used for hanging an object to be traction, the driving motor 5 is reversely started, and the traction roller rotates, so that the traction or tensioning operation can be performed. When the traction operation needs to be suspended after the traction is carried out to a certain position, the brake cylinder 46 is started, the piston rod of the brake cylinder 46 stretches, the front brake shoe 42 and the rear brake shoe 43 are driven to be outwards opened by taking the positioning shaft 41 as a central line, the friction plate 45 on the outer surfaces of the front brake shoe 42 and the rear brake shoe 43 are in pressing contact with the inner surface of the cylinder body 40, so that the left driving shaft 17 and the main driving shaft 18 are braked and fixed with the first supporting frame 7, the driving motor 5 can be closed at the moment, and the gearbox 6 has a self-locking function, so that the safety and reliability of the traction or tensioning operation can be ensured.
The hydraulic brake 22 in the invention adopts the extension of the brake cylinder 46 to drive the front brake shoe 42 and the rear brake shoe 43 to be opened to be in pressing contact with the cylinder body 40, and brakes the left driving shaft 17 through the connecting disc 39 and the connecting sleeve 38. The connecting sleeve 38 is connected with the left driving shaft 17 through the spline structure 37, so that the braking reliability is ensured. The right end of the positioning shaft 41 is fixedly coupled to the first support frame 7, so that the cylinder 40 is fixed to the first support frame 7 by the positioning shaft 41 after braking. The press fit between the friction lines on the inner wall of the cylinder body 40 and the friction plates 45 plays a role in good anti-skid braking performance, and after the friction plates 45 are worn, the friction plates 45 can be replaced by unscrewing the countersunk screws 44, so that the installation and the disassembly are convenient.
Because the hydraulic telescopic boom is fixedly arranged on the engineering truck, the two movable square pipes 49 are driven by the telescopic oil cylinders 47 to move leftwards to extend out to form the cantilever crane during operation, the telescopic oil cylinders 47 also play a role in preventing the movable square pipes 49 from moving rightwards during hoisting operation, and when the engineering truck runs on a road, the two movable square pipes 49 are moved rightwards into the fixed square pipes 48 in order to reduce the width of the truck to achieve safe running. The two movable square tubes 49 are arranged, so that the weight of the lifting operation can be fully enhanced, and the fixed square tubes 48 play a role in guiding and bearing to ensure that the movable square tubes 49 are firmly fixed in the lifting operation process.
The first and second hydraulically driven clutches 33 and 34 are hydraulically driven to engage and disengage the fork teeth 63 with and from the clutch teeth 59 by way of leverage. The components of the first and second hydraulically driven clutches 33, 34 of the present invention are assembled in a split manner, which is convenient for manufacturing, installation and disassembly.
Because the part of the toggle bolt 75 extending into the clamping groove 61 is provided with the toggle bearing 76, when the toggle bearing 76 drives the mounting wheel 60 to move left and right, the outer ring of the toggle bearing 76 can rotate along with the mounting wheel 60, so that the abrasion between the inner end of the toggle bolt 75 and the side wall of the clamping groove 61 of the mounting wheel 60 is reduced.
The present embodiment is not limited in any way by the shape, material, structure, etc. of the present invention, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention are all included in the scope of protection of the technical solution of the present invention.
Claims (4)
1. Vehicle-mounted traction and lifting combined device for bridge construction is characterized in that: the left side and the right side between the lower frame and the upper frame are respectively and fixedly provided with a left frame and a right frame, a driving motor and a gearbox are arranged on the lower frame, a first support frame, a second support frame, a third support frame and a fourth support frame are sequentially arranged on the upper surface of the lower frame from left to right between the left frame and the right frame, the tops of the second support frame and the third support frame are fixedly connected with the lower surface of the upper frame, a first bearing seat is arranged on the right side of the left frame, a second bearing seat is arranged on the first support frame, a third bearing seat is arranged on the second support frame, a fourth bearing seat is arranged on the third support frame, a fifth bearing seat is arranged on the fourth support frame, a sixth bearing seat is arranged on the left side of the right frame, the central lines of the first bearing seat, the second bearing seat, the third bearing seat, the fourth bearing seat, the fifth bearing seat and the sixth bearing seat coincide, and the central lines are horizontally arranged along the left-right direction;
the first bearing seat and the second bearing seat are rotationally connected with a left driving shaft of which the right end stretches out of the second bearing seat rightwards through bearings, the third bearing seat and the fourth bearing seat are rotationally connected with a main driving shaft through bearings, the fifth bearing seat and the sixth bearing seat are rotationally connected with a right driving shaft of which the left end stretches out of the fifth bearing seat leftwards through bearings, the left end of the main driving shaft stretches out of the third bearing seat leftwards, the right end of the main driving shaft stretches out of the fourth bearing seat rightwards, a driven sprocket is coaxially and fixedly arranged on the main driving shaft, a traction roller is coaxially and fixedly arranged on the left driving shaft, a hydraulic brake positioned on the right side of the traction roller is arranged on the left driving shaft, a traction rope is wound on the traction roller, a traction hook is connected with the movable end of the traction rope, a lifting roller is coaxially and fixedly arranged on the right driving shaft, and a lifting rope is wound on the lifting roller;
the main shaft of the driving motor is in transmission connection with the power input shaft of the gearbox, a driving sprocket is arranged on the power output shaft of the gearbox, and the driving sprocket is in transmission connection with the driven sprocket through a chain;
the left side of the top of the upper frame is fixedly provided with a lifting three-dimensional frame, the top of the lifting three-dimensional frame is provided with a left-right horizontal telescopic hydraulic telescopic suspension arm, the left end of the hydraulic telescopic suspension arm is provided with a first fixed pulley, the right side of the top of the lifting three-dimensional frame is provided with a second fixed pulley, and the movable end of a lifting rope is connected with a lifting hook positioned at the left side of the lifting three-dimensional frame after sequentially bypassing the second fixed pulley and the first fixed pulley by a lifting roller;
a first hydraulic drive type clutch is arranged between the left end of the main driving shaft and the right end of the left driving shaft, and a second hydraulic drive type clutch is arranged between the right end of the main driving shaft and the right end of the right driving shaft;
the right side of the top of the upper frame is fixedly provided with a diesel engine, a generator and a hydraulic station, the power output end of the diesel engine is in transmission connection with the power input end of the generator, the generator supplies power for the hydraulic station and a driving motor, and the hydraulic station provides power for a hydraulic brake, a hydraulic telescopic boom, a first hydraulic driving clutch and a second hydraulic driving clutch;
the first hydraulic drive clutch and the second hydraulic drive clutch have the same structure and are symmetrically arranged left and right;
the second hydraulic drive clutch comprises a mounting plate, a rotating disk, a clutch shifting mechanism and a shifting fork wheel assembly, wherein the mounting plate is horizontally and fixedly arranged at the bottom of the upper frame, two mounting sleeves are fixedly arranged on the lower surface of the mounting plate, the central lines of the two mounting sleeves coincide and are respectively arranged along the front and rear horizontal directions, the rotating disk is coaxially and fixedly arranged at the right end part of the main driving shaft, and a plurality of clutch teeth are fixedly arranged on the right side surface of the rotating disk along the circumferential direction; the shifting fork wheel assembly comprises a mounting wheel positioned between a fifth bearing seat and clutch teeth, an annular clamping groove is formed in the outer circumferential surface of the mounting wheel, a key groove is formed in the left side of the fifth bearing seat on the right driving shaft along the axial direction, the inner wall of the mounting wheel is coaxially arranged on the right driving shaft through a flat key assembled in the key groove, a gap is reserved between the flat key and the key groove, shifting fork teeth which are the same as the number of the clutch teeth and are correspondingly clamped and meshed are fixed on the left side of the mounting wheel along the circumferential direction, and a clutch shifting mechanism is arranged on the two mounting sleeves and is in transmission connection with the mounting wheel;
the clutch toggle mechanism comprises a coupling sleeve, a shifting fork and a shifting fork shaft; the coupling sleeve comprises a coupling sleeve and a driving plate, two first threaded holes are formed in the coupling sleeve along the radial direction, the central lines of the two first threaded holes are mutually perpendicular, the driving plate is fixed on the outer surface of the coupling sleeve, and the central line of the coupling sleeve is perpendicular to the plane where the driving plate is located; the shifting fork comprises a shifting fork sleeve and two shifting levers, two second threaded holes are formed in the shifting fork sleeve along the radial direction, the two shifting levers are parallel and are all arranged along the radial direction of the shifting fork sleeve, and third threaded holes with the central lines parallel to the shifting fork sleeve are respectively formed in the two shifting levers; the shifting fork sleeve is positioned between the two mounting sleeves, the shaft sleeve, the shifting fork sleeve and the mounting sleeves are provided with the same center line, two fourth threaded holes are formed in the shifting fork shaft, the shifting fork shaft is inserted into the mounting sleeves, the shaft sleeve and the shifting fork sleeve, the shaft sleeve is positioned between the two mounting sleeves, the shifting fork sleeve is positioned at the rear side of the mounting sleeve, each first threaded hole is internally and spirally connected with a jacking bolt, the inner ends of the jacking bolts are jacked on the shifting fork shaft, the two second threaded holes and the two fourth threaded holes are in one-to-one correspondence, each second threaded hole and the corresponding fourth threaded hole are internally and spirally connected with a connecting bolt, the two shifting rods are positioned at the front side and the rear side of the outer circumference of the mounting wheel, each third threaded hole is internally and spirally connected with a shifting bolt, and the inner ends of the shifting bolts are coaxially provided with shifting bearings which extend into the clamping grooves;
the hydraulic brake comprises a connecting sleeve coaxially arranged on a left driving shaft through a spline structure, the outer circumference of the connecting sleeve is fixedly connected with a connecting disc in the same axial direction, the outer circumference of the connecting disc is fixedly connected with a cylinder in the same axial direction, the open end of the cylinder faces to a second bearing seat, a positioning shaft which is parallel to the left driving shaft and stretches into the lower part in the cylinder is fixedly arranged on the left side of the upper part of the first supporting frame, a front brake shoe and a rear brake shoe which are positioned in the cylinder are rotationally connected on the positioning shaft, the whole front brake shoe and the whole rear brake shoe are of semicircular structures, friction plates are fixedly arranged on the outer circumferential surfaces of the front brake shoe and the rear brake shoe through countersunk head screws, gaps are reserved between the outer circumferential surfaces of the friction plates and the inner wall of the cylinder, a brake cylinder is horizontally arranged between the upper parts of the front brake shoe and the rear brake shoe, and a cylinder body and a piston rod of the brake cylinder are hinged with the rear side of the front brake shoe and the front side of the rear brake shoe respectively.
2. The vehicle-mounted traction and hoisting combined device for bridge construction according to claim 1, wherein: the hydraulic telescopic boom comprises a telescopic oil cylinder and two fixed square pipes which are horizontally arranged along the left-right direction, the two fixed square pipes are fixedly arranged at the top of the lifting three-dimensional frame, a movable square pipe is arranged in each fixed square pipe in a penetrating manner, the left ends of the two movable square pipes extend out of the fixed square pipes, a supporting square pipe is fixedly arranged at the top of the left ends of the two movable square pipes, a pulley frame is arranged on the supporting square pipes, a first fixed pulley is rotationally connected to the pulley frame, a rope-falling preventing U-shaped clamp is arranged on the pulley frame, guide holes are formed in the left bottom of each fixed square pipe along the left-right horizontal direction, guide blocks penetrating through the guide holes are fixedly arranged at the bottom of each movable square pipe, the two guide blocks are connected through a driving rod positioned below the fixed square pipes, the telescopic oil cylinder is parallel to the fixed square pipes and positioned below the middle of the two fixed square pipes, and the cylinder body of the telescopic oil cylinder is hinged to the upper right side of the lifting three-dimensional frame, and the piston rod of the telescopic oil cylinder is hinged to the right side of the middle part of the driving rod.
3. The vehicle-mounted traction and hoisting combined device for bridge construction according to claim 1, wherein: the drive plate sets up towards the right side, and mounting panel right side top is provided with the mount, is provided with the separation and reunion actuating cylinder that is located drive plate right side top on the mount, and separation and reunion actuating cylinder's cylinder body and piston rod are articulated with the right-hand member top of mount and drive plate respectively.
4. The vehicle-mounted traction and hoisting combined device for bridge construction according to claim 1, wherein: reinforcing rib plates are arranged between the right side of the left frame and the left side of the right frame and the top of the lower frame.
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| CN201710906268.5A CN107447680B (en) | 2017-09-29 | 2017-09-29 | Vehicle-mounted traction and lifting combined device for bridge construction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710906268.5A CN107447680B (en) | 2017-09-29 | 2017-09-29 | Vehicle-mounted traction and lifting combined device for bridge construction |
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| CN107447680A CN107447680A (en) | 2017-12-08 |
| CN107447680B true CN107447680B (en) | 2024-01-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108975152B (en) * | 2018-09-19 | 2019-10-08 | 台州黄岩红旗塑模有限公司 | A kind of working method for the working lifting auxiliary device that builds a bridge |
| CN111101449A (en) * | 2020-01-18 | 2020-05-05 | 代国治 | Bridge construction is with device of demolising of support |
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| SU1442446A1 (en) * | 1987-04-27 | 1988-12-07 | Проектно-Конструкторское Технологическое Бюро Треста Промстройматериалов | Arrangement for moving mine cars |
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| CN107447680A (en) | 2017-12-08 |
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