CN107473111B - Vehicle-mounted movable multifunctional heavy object hoisting equipment - Google Patents
Vehicle-mounted movable multifunctional heavy object hoisting equipment Download PDFInfo
- Publication number
- CN107473111B CN107473111B CN201710902274.3A CN201710902274A CN107473111B CN 107473111 B CN107473111 B CN 107473111B CN 201710902274 A CN201710902274 A CN 201710902274A CN 107473111 B CN107473111 B CN 107473111B
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- frame
- lifting
- clutch
- driving shaft
- bearing seat
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- 238000005520 cutting process Methods 0.000 claims abstract description 26
- 238000000227 grinding Methods 0.000 claims abstract description 16
- 239000000725 suspension Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 43
- 239000010959 steel Substances 0.000 claims description 43
- 230000008878 coupling Effects 0.000 claims description 21
- 238000010168 coupling process Methods 0.000 claims description 21
- 238000005859 coupling reaction Methods 0.000 claims description 21
- 239000000428 dust Substances 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000032258 transport Effects 0.000 description 18
- 239000004035 construction material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004630 mental health Effects 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
- 239000000126 substance Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
Abstract
The vehicle-mounted movable multifunctional heavy object hoisting equipment 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 cutting disc and a grinding wheel are fixedly arranged on the left driving shaft in the coaxial direction, a hoisting roller is fixedly arranged on the right driving shaft in the coaxial direction, and a hoisting rope is wound on the hoisting 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 hydraulic drive clutch is arranged between the two ends of the main driving shaft and the left driving shaft and the right driving shaft respectively; the invention combines the common equipment for building construction such as lifting, cutting and polishing and the like into a whole, has compact structure, adopts one power to convert through the clutch, saves cost, has strong flexibility, can move anywhere on a construction site according to the requirement, reduces the labor intensity of workers, can respectively carry out the lifting, cutting and polishing, and is convenient for later maintenance and management.
Description
Technical Field
The invention belongs to the technical field of lifting, and particularly relates to vehicle-mounted movable multifunctional heavy object lifting equipment.
Background
In civil engineering construction sites such as buildings, roads, bridges, and the like, a transport vehicle transports construction materials or equipment to the construction site, and transport of the construction materials or equipment to other construction sites by the transport vehicle requires transport of the construction materials or equipment on the transport vehicle to the ground, and transport of the construction materials or equipment on the ground to the transport vehicle. At present, heavy construction materials or apparatuses are generally hoisted by a large crane, and smaller and lighter construction materials or apparatuses are manually operated, so that the transportation efficiency is affected, the labor intensity of workers is high, and the construction efficiency is also affected due to the fact that the large crane is high in use cost and low in transfer speed. In addition, the existing crane only plays a role in hoisting heavy objects, and because the cutting machine is also frequently used for cutting materials on a construction site, the grinding wheel polishing tool is also required to be frequently used, so that more equipment is required, a larger place is occupied, and maintenance and management are not easy.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides the vehicle-mounted movable multifunctional heavy object hoisting equipment which integrates the functions of hoisting, cutting, polishing and the like, has a compact structure, is convenient to maintain and manage, improves the efficiency and lightens the labor intensity of workers.
In order to solve the technical problems, the invention adopts the following technical scheme: the vehicle-mounted movable multifunctional weight lifting device comprises a lower frame and an upper frame which are horizontally arranged, wherein a left frame and a right frame are respectively and fixedly arranged on the left side and the right side between the lower frame and the upper frame, a driving motor and a gearbox are arranged on the lower frame, a first supporting frame, a second supporting frame, a third supporting frame and a fourth supporting 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 supporting frame and the third supporting 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 supporting frame, a third bearing seat is arranged on the second supporting frame, a fourth bearing seat is arranged on the third supporting frame, a fifth bearing seat is arranged on the fourth supporting 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, the fifth bearing seat and the sixth bearing seat are overlapped and the central line is horizontally arranged along the left direction;
the left end of the main driving shaft stretches out of the fourth bearing seat to the right, a driven sprocket is coaxially and fixedly arranged on the main driving shaft, a cutting disc and a grinding wheel are coaxially and fixedly arranged on the left driving shaft, a hydraulic driving lifting platform positioned under the cutting disc and the grinding wheel is arranged on the left side of the bottom of the lower frame, 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;
the lower part in the lifting three-dimensional frame is provided with a wind collecting cover and a dust collector, the wind collecting cover is in a conical structure with a large lower part and a small upper part, the bottom of the wind collecting cover is fixedly arranged on the upper frame and is positioned right above the cutting disc and the sand wheel, and the top of the wind collecting cover is communicated with the dust collector through an exhaust fan;
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 driving lifting platform, a hydraulic telescopic boom, a first hydraulic driving clutch and a second hydraulic driving clutch.
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 hydraulic drive lifting platform comprises a lifting oil cylinder, a bedplate, two left channel steel guide rails and two right channel steel guide rails, wherein the two left channel steel guide rails and the two right channel steel guide rails are vertically arranged, four vertexes of the rectangular orthographic projection of the two left channel steel guide rails and the two right channel steel guide rails are arranged, the two left channel steel guide rails are adjacent to a left frame and are positioned on the right side of the left frame, the two right channel steel guide rails are adjacent to a first supporting frame and are positioned on the left side of the first supporting frame, the left side of the bedplate is positioned between the two left channel steel guide rails, the right side of the bedplate is positioned between the two right channel steel guide rails, the lower end of a cylinder body of the lifting oil cylinder is hinged to a lower frame, the upper end of a piston rod of the lifting oil cylinder is hinged to the lower surface of the bedplate, a left wheel carrier is respectively arranged at the front part and the rear side of the bedplate, the upper part and the lower part of each left wheel carrier are respectively rotatably provided with a left roller wheel which rolls up and down along the groove of the left channel steel guide rail, the front part and the rear side of the bedplate are respectively provided with a right roller which rolls up and down along the groove of the right wheel carrier guide rail.
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.
The left side of the upper part of the two left channel steel guide rails is connected with the right side surface of the left frame through a left longitudinal beam along the front-back direction, and the right side of the upper part of the two right channel steel guide rails is connected with the left side surface of the first support frame through a right longitudinal beam along the front-back direction.
The lifting three-dimensional frame is provided with a sunshade and rain shed for covering the dust collector, the exhaust fan, the wind collecting cover, the diesel engine, the generator and the hydraulic station.
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 vehicle can conveniently move at a construction site, and the driving engineering vehicle needs to be lifted to the place. When the hoisting or grinding machine is used for cutting, 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 hoisting operation is needed, the engineering truck is parked after being driven to an operation place, the heavy object to be hoisted is supposed to be positioned at the left side of the engineering truck, the clutch teeth and the shifting fork teeth of the first hydraulic drive type clutch are separated, the telescopic oil cylinder is started firstly, the piston rod of the telescopic oil cylinder is stretched 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 oil cylinder is stopped after the two movable square pipes stretch leftwards for a certain length, then the clutch driving oil cylinder of the second hydraulic drive type clutch is started, the piston rod of the clutch driving oil cylinder is stretched downwards to drive the driving plate to rotate downwards, the driving plate drives the coupling sleeve to rotate, and the inner end of the jack bolt is propped against the shifting fork shaft, so that the coupling sleeve rotates to drive the shifting fork shaft to rotate, the shifting fork shaft rotates to drive the shifting fork sleeve to rotate a certain angle, the shifting bearings on the shifting fork sleeve drive the shifting rod to move leftwards along the right driving shaft, and shifting bearings on the shifting fork shafts on the shifting rods are combined with the clutch teeth on the mounting sleeve; 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.
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.
When cutting construction materials or grinding tools are required, separation of clutch teeth and shift fork teeth of the second hydraulic drive clutch is ensured. Then, according to the method of operating the second hydraulically driven clutch described above, the clutch teeth and the shift teeth of the first hydraulically driven clutch are combined, and then the output speed of the gearbox is adjusted to increase the rotational speed of the driven sprocket. The driving motor is started, the main driving shaft is driven by the chain transmission mechanism, the left driving shaft is driven by the main driving shaft through the clutch teeth and the shifting fork teeth to rotate, the cutting disc and the grinding wheel which are arranged on the left driving shaft also rotate at a high speed, then the lifting oil cylinder is started, the piston rod of the lifting oil cylinder extends to upwards lift the platen, the left roller on the platen moves upwards along the two left channel steel guide rails, the right roller moves upwards along the two right channel steel guide rails, and the workpiece is cut along with the vertical upward movement of the workpiece until the workpiece contacts the cutting disc. And then controlling the lifting oil cylinder to move downwards for a certain distance, stopping, and then loosening the clamped workpiece.
The grinding wheel rotates, in the polishing process, the tool can be directly held for polishing, a support can also be arranged on the platen, the platen is stopped after being lifted to a certain height, and the tool is placed on the support for polishing.
In the cutting and polishing process, the exhaust fan is started, dust is pumped into the dust collector through the wind collecting cover to be collected, and the influence of dust pollution on the physical and mental health of operators is avoided.
In summary, the invention combines the common equipment for building construction such as lifting, cutting and polishing and the like into a whole, has compact structure, adopts one power to convert through the clutch, saves cost, has strong flexibility, can move anywhere on a construction site according to the needs, reduces the labor intensity of workers, can respectively carry out the operations of lifting, cutting and polishing, and is convenient for later maintenance and management.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of the hydraulically telescoping boom arm of FIG. 1;
FIG. 3 is an enlarged view of the second hydraulically driven clutch of FIG. 1;
FIG. 4 is a left side view of the mounting plate and mounting sleeve of FIG. 3;
FIG. 5 is a schematic structural view of a coupling sleeve;
FIG. 6 is a schematic structural view of a fork;
fig. 7 is a schematic structural view of the shift rail.
Detailed Description
As shown in fig. 1-7, the invention comprises a lower frame 1 and an upper frame 2 which are horizontally arranged, a left frame 3 and a right frame 4 are respectively and fixedly arranged on the left side and the right side between the lower frame 1 and the upper frame 2, 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 from left to right between the left frame 3 and the right frame 4, 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 third support frame 9, a fifth bearing seat 15 is arranged on the fourth support frame 10, a sixth bearing seat 16 is arranged on the left side of the right frame 4, and a center line of the first bearing seat 11, the second bearing seat 12, the third bearing seat 13, the fifth bearing seat 14, the fifth bearing seat 15 and the sixth bearing seat 16 are overlapped with the center line 16 along the horizontal direction;
the first bearing seat 11 and the second bearing seat 12 are rotatably connected with a left driving shaft 17 with the right end extending rightward from the second bearing seat 12 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 with the left end extending leftward from the fifth bearing seat 15 through bearings, the left end of the main driving shaft 18 extends leftward from the third bearing seat 13, the right end of the main driving shaft 18 extends rightward from the fourth bearing seat 14, the main driving shaft 18 is coaxially and fixedly provided with a driven sprocket 20, the left driving shaft 17 is coaxially and fixedly provided with a cutting disc 22 and a grinding wheel 23, the left side of the bottom of the lower frame 1 is provided with a hydraulic driving lifting platform positioned right below the cutting disc 22 and the grinding wheel 23, the right driving shaft 18 is coaxially and fixedly provided with a lifting roller 25, and lifting ropes 26 are wound on the lifting roller 25;
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;
the inner lower part of the lifting three-dimensional frame 29 is provided with a wind collecting cover 24 and a dust collector 37, the wind collecting cover 24 is in a conical structure with a large lower part and a small upper part, the bottom of the wind collecting cover 24 is fixedly arranged on the upper frame 2 and is positioned right above the cutting disc 22 and the sand wheel 23, and the top of the wind collecting cover 24 is communicated with the dust collector 37 through an exhaust fan 46;
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 a hydraulic driving lifting platform, a hydraulic telescopic boom, a first hydraulic driving clutch 33 and a second hydraulic driving clutch 34.
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 hydraulic drive lifting platform comprises a lifting oil cylinder 38, a bedplate 39, two left channel steel guide rails 40 and two right channel steel guide rails 41, wherein the two left channel steel guide rails 40 and the two right channel steel guide rails 41 are vertically arranged, four vertexes of the two left channel steel guide rails 40 and the two right channel steel guide rails 41, which are in rectangular orthographic projection, are arranged, the two left channel steel guide rails 40 are adjacent to the left frame 3 and are positioned on the right side of the left frame 3, the two right channel steel guide rails 41 are adjacent to the first supporting frame 7 and are positioned on the left side of the first supporting frame 7, the left side of the bedplate 39 is positioned between the two left channel steel guide rails 40, the right side of the bedplate 39 is positioned between the two right channel steel guide rails 41, the lower end of a cylinder body of the lifting oil cylinder 38 is hinged on the lower frame, the upper end of a piston rod of the lifting oil cylinder 38 is hinged on the lower surface of the bedplate 39, the front part and the rear side of the left side of the bedplate 39 are respectively provided with a left wheel frame 42, the upper part and the lower part of each left wheel frame 42 are respectively rotatably provided with a left roller 43 and a right roller 44 which rolls up and down along a groove of the left channel steel guide rail 40, the right side of the bedplate 44 is respectively provided with a right roller 44, and the upper part of the right roller frame 44 is respectively rotatably provided with a right roller frame 44.
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.
The upper left sides of the two left channel steel guide rails 40 are connected with the right side surfaces of the left frame 3 through left longitudinal beams 79 along the front-rear direction, and the upper right sides of the two right channel steel guide rails 41 are connected with the left side surfaces of the first support frame 7 through right longitudinal beams 80 along the front-rear direction.
The lifting three-dimensional frame is provided with a sunshade and rain-proof shed 81 covering the dust collector 37, the exhaust fan 46, the wind collecting cover 24, the diesel engine 35, the generator and the hydraulic station 36, and the lifting rope 26 passes through the sunshade and rain-proof shed 81.
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 vehicle can conveniently move at a construction site, and the driving engineering vehicle needs to be lifted to the place. During the lifting, grinding and cutting operations, the motor needs to be started to supply power to the driving motor 5 and the hydraulic station 36 through the generator.
The working process of the invention is as follows: when hoisting operation is needed, the engineering truck is parked after being driven to an operation place, the heavy object to be hoisted is supposed to be positioned on the left side of the engineering truck, 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 shaft sleeve 65 to rotate, the shifting fork sleeve 68 is driven to rotate by the fact that the inner end of the jacking bolt 73 is jacked on the shifting fork shaft 64, the shifting fork sleeve 68 is connected with the shifting fork 64 through the connecting bolt 74, the shifting fork sleeve 68 is driven to rotate by a certain angle, the shifting fork sleeve 68 is driven to rotate leftwards, the shifting fork sleeve 69 is driven by the shifting fork sleeve 68 to rotate leftwards, and the shifting fork sleeve 69 is installed on the bearing 60 is combined with the driving wheel 60 which is installed on the driving shaft 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. .
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.
When it is desired to cut the work material or the grinding tool, it is ensured that the clutch teeth 59 and the fork teeth 60 of the second hydraulically driven clutch 34 are separated. The clutch teeth 59 and fork teeth 60 of the first hydraulically driven clutch 33 are then engaged as described above for operating the second hydraulically driven clutch 34, and the output speed of the gearbox 6 is then adjusted to increase the rotational speed of the driven sprocket 20. The drive motor 5 is started, the main drive shaft 18 is driven by a chain 28 transmission mechanism, the main drive shaft 18 drives the left drive shaft 17 to rotate through the clutch teeth 59 and the shifting fork teeth 60, the cutting disc 22 and the grinding wheel 23 mounted on the left drive shaft 17 also rotate at a high speed, then the lifting cylinder 38 is started, the piston rod of the lifting cylinder 38 extends to lift the platen 39 upwards, the left roller 43 on the platen 39 moves upwards along the two left channel steel guide rails 40, the right roller 45 moves upwards along the two right channel steel guide rails 41, and the workpiece moves upwards along with the vertical direction of the workpiece until the workpiece is cut when the workpiece contacts the cutting disc 22. The lift cylinder 38 is then operated to move downward one end distance and then stopped, and then the clamped workpiece is released.
The grinding wheel 23 rotates, and in the polishing process, the tool can be directly held for polishing, or a bracket can be arranged on the platen 39, the platen 39 is stopped after being lifted to a certain height, and the tool is placed on the bracket for polishing.
During cutting and polishing, the exhaust fan 46 is turned on, and dust is pumped into the dust collector 37 through the dust collecting hood 24 to be collected, so that dust pollution is prevented from affecting the physical and mental health of operators.
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 (6)
1. Vehicle-mounted movable multifunctional weight lifting equipment 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 left end of the main driving shaft stretches out of the fourth bearing seat to the right, a driven sprocket is coaxially and fixedly arranged on the main driving shaft, a cutting disc and a grinding wheel are coaxially and fixedly arranged on the left driving shaft, a hydraulic driving lifting platform positioned under the cutting disc and the grinding wheel is arranged on the left side of the bottom of the lower frame, 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;
the lower part in the lifting three-dimensional frame is provided with a wind collecting cover and a dust collector, the wind collecting cover is in a conical structure with a large lower part and a small upper part, the bottom of the wind collecting cover is fixedly arranged on the upper frame and is positioned right above the cutting disc and the sand wheel, and the top of the wind collecting cover is communicated with the dust collector through an exhaust fan;
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 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 driving lifting platform, 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 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.
2. The vehicle-mounted mobile utility weight lifting device of 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 mobile utility weight lifting device of claim 1, wherein: the hydraulic drive lifting platform comprises a lifting oil cylinder, a bedplate, two left channel steel guide rails and two right channel steel guide rails, wherein the two left channel steel guide rails and the two right channel steel guide rails are vertically arranged, four vertexes of the rectangular orthographic projection of the two left channel steel guide rails and the two right channel steel guide rails are arranged, the two left channel steel guide rails are adjacent to a left frame and are positioned on the right side of the left frame, the two right channel steel guide rails are adjacent to a first supporting frame and are positioned on the left side of the first supporting frame, the left side of the bedplate is positioned between the two left channel steel guide rails, the right side of the bedplate is positioned between the two right channel steel guide rails, the lower end of a cylinder body of the lifting oil cylinder is hinged to a lower frame, the upper end of a piston rod of the lifting oil cylinder is hinged to the lower surface of the bedplate, a left wheel carrier is respectively arranged at the front part and the rear side of the bedplate, the upper part and the lower part of each left wheel carrier are respectively rotatably provided with a left roller wheel which rolls up and down along the groove of the left channel steel guide rail, the front part and the rear side of the bedplate are respectively provided with a right roller which rolls up and down along the groove of the right wheel carrier guide rail.
4. The vehicle-mounted mobile utility weight lifting device of 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.
5. The vehicle-mounted mobile utility weight lifting device of claim 1, wherein: the left side of the upper part of the two left channel steel guide rails is connected with the right side surface of the left frame through a left longitudinal beam along the front-back direction, and the right side of the upper part of the two right channel steel guide rails is connected with the left side surface of the first support frame through a right longitudinal beam along the front-back direction.
6. The vehicle-mounted mobile utility weight lifting device of claim 1, wherein: the lifting three-dimensional frame is provided with a sunshade and rain shed for covering the dust collector, the exhaust fan, the wind collecting cover, the diesel engine, the generator and the hydraulic station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710902274.3A CN107473111B (en) | 2017-09-29 | 2017-09-29 | Vehicle-mounted movable multifunctional heavy object hoisting equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710902274.3A CN107473111B (en) | 2017-09-29 | 2017-09-29 | Vehicle-mounted movable multifunctional heavy object hoisting equipment |
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| CN107473111A CN107473111A (en) | 2017-12-15 |
| CN107473111B true CN107473111B (en) | 2023-12-01 |
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| CN108482226A (en) * | 2018-05-02 | 2018-09-04 | 唐峰 | Steel reinforcement cage transfer car(buggy) |
| CN110890717B (en) * | 2019-10-29 | 2021-04-16 | 国网河南省电力公司鄢陵县供电公司 | Method for releasing and laying cable from cable reel |
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| CN101195464A (en) * | 2006-12-06 | 2008-06-11 | 王春明 | Winding machine with wet-type friction slice clutch having hollow hook lowering function |
| CN101190770A (en) * | 2007-09-05 | 2008-06-04 | 胡世璇 | Hydraulic pressure reel cart with clutch at transmission last level |
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