CN117383433B - Portable crane with adjustable field - Google Patents
Portable crane with adjustable field Download PDFInfo
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- CN117383433B CN117383433B CN202311612102.4A CN202311612102A CN117383433B CN 117383433 B CN117383433 B CN 117383433B CN 202311612102 A CN202311612102 A CN 202311612102A CN 117383433 B CN117383433 B CN 117383433B
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- 238000004804 winding Methods 0.000 claims description 36
- 238000003825 pressing Methods 0.000 claims description 22
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- 238000005452 bending Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
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- 230000000903 blocking effect Effects 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/46—Position indicators for suspended loads or for crane elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/04—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/06—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
- B66C23/166—Simple cranes with jibs which may be fixed or can slew or luff
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/703—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by flexible elements, e.g. cables, chains or bands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
- B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
- B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a portable crane with adjustable field, which relates to the technical field of lifting equipment, wherein a connecting rod is fixedly arranged at one end of the bottom of a telescopic boom, a deflection block is fixedly connected at one end of the connecting rod, an observation round rod is fixedly connected at the middle part of one end of the deflection block, and a support frame is fixedly arranged at the position of one side of the connecting rod at the top of a rotating plate.
Description
Technical Field
The invention relates to the technical field of lifting equipment, in particular to a portable crane with adjustable field.
Background
The crane is a multi-action crane for vertically lifting and horizontally carrying heavy objects in a certain range, also called crown block, aerial crane and crane, and can be generally divided into four categories of light and small-sized crane equipment, bridge type crane and arm support type crane according to different structures and performances, wherein the cable type crane is divided into a mobile crane, a tower crane and a mast type crane according to lifting properties, the cable type crane is divided into concentrated driving and separate driving according to driving modes, the medium and small-sized bridge cranes are more integrated into a three-in-one driving mode by adopting a brake, a speed reducer and a motor, the common bridge crane with large lifting weight is convenient to install and adjust, the driving device is usually a universal coupler, the working characteristic of the crane is intermittent motion, namely, corresponding mechanisms of taking, transporting, unloading and other actions in one working cycle are alternately working, and the crane is increasingly widely developed and used in the market;
However, the telescopic boom used by the existing crane can be aligned to the preset lifting position of the object to be lifted only by adjusting the inclination direction angle and the extending length for a plurality of times by a worker, and the repeated adjustment is needed when the object to be lifted is lifted repeatedly for a plurality of times at the same position, so that the working efficiency is reduced.
Disclosure of Invention
The invention provides a portable crane with adjustable field, which can effectively solve the problems that a telescopic boom used by the crane in the background technology needs a worker to adjust the inclination direction angle and the extending length for a plurality of times so as to aim at the preset lifting position of an object to be lifted, and the telescopic boom needs repeated adjustment for a plurality of times when lifted repeatedly at the same position, thereby reducing the working efficiency.
In order to achieve the above purpose, the present invention provides the following technical solutions: the portable crane with the adjustable site comprises a base, wherein a rotating plate and a telescopic boom are arranged at the top end of the base, and a hoisting position and angle monitoring mechanism are arranged at the top of the rotating plate;
the hoisting position and angle monitoring mechanism comprises a connecting rod;
A connecting rod is arranged at one end of the bottom of the telescopic boom, one end of the connecting rod is connected with a deflection block, and the middle part of one end of the deflection block is connected with an observation round rod;
The top of the rotating plate is provided with a supporting frame at one side of the connecting rod, the top of the supporting frame is provided with an arc-shaped fixing plate, the middle of the arc-shaped fixing plate is provided with arc-shaped measuring grooves, the edge of the arc-shaped fixing plate is provided with scale marks at equal intervals, the top of the supporting frame is provided with a bending spring, the edge of the top of the fixed circular block is provided with a fixed circular ring, and the edge of the fixed circular ring is provided with a spotlight at equal intervals;
A fixed seat is arranged in the middle of the top end of the rotating plate, a rotary round rod is rotatably arranged at one end of the top of the fixed seat, a winding shaft is arranged on the surface of the rotary round rod, and a stretching flat belt is wound in the middle of the winding shaft;
One end of the top of the telescopic boom is connected with a positioning block, a rotating wheel is arranged in the middle of the rotating round rod, an arc-shaped protruding block is arranged at the edge of the rotating wheel, and a ratchet wheel is arranged on the surface of the rotating round rod at one side of the rotating wheel;
The utility model discloses a movable plate, including rotor plate, movable rod, lifter, bearing plate, movable rod, elevating plate, rubber pressing block, bearing plate's top and rotation round bar correspond position department with the rotation round bar and install the grudging post, the bearing plate is installed on the top of grudging post, the middle part fixed mounting on bearing plate top has the push type counter, the movable rod is run through to the both ends symmetry of bearing plate, two the extrusion spring has all been cup jointed in the middle part of movable rod, two fixed mounting has the lifter plate between the top of movable rod, the bottom middle part fixed mounting of lifter plate has the rubber pressing piece.
According to the technical scheme, the top of base rotates installs rotatory drum, the top of base is located the inside fixed mounting of rotatory drum and has driving motor, driving motor's output shaft fixedly connected with drive gear, the top fixed mounting of rotatory drum has the rotor plate, the middle part fixed mounting of rotor plate bottom has the rotation gear, the top middle part fixed mounting of rotor plate has the fixing base, the middle part rotation of fixing base installs flexible davit, the top symmetry fixed mounting of flexible davit has wire wheel, the top of rotor plate is located flexible davit one side position department fixed mounting and has the mounting bracket, the middle part rotation of mounting bracket has the reel, the one end fixed mounting at mounting bracket top has the rolling motor, the middle part winding of reel has the traction rope, the one end fixedly connected with fixed circle of traction rope, the bottom fixed circular block is fixed mounting has the suspension hook, the top of rotor plate is located the one side position department rotation of flexible davit has hydraulic telescoping rod to install.
According to the technical scheme, the top end of the base is provided with the circular clamping groove, the bottom end of the rotary cylinder is movably clamped in the circular clamping groove, the driving gear and the rotary gear are meshed with each other, the output shaft of the winding motor is fixedly connected with one end of the winding shaft, the traction rope is tightly attached to the middle parts of the two wire guide wheels, and the top end of the hydraulic telescopic rod is rotatably connected with one end of the bottom of the telescopic boom;
The observation round rod is movably embedded into the arc measuring groove, the top end of the bending spring is fixedly connected with one end of the deflection block, and the circle center positions of the arc fixing plate and the arc measuring groove are coincident with the rotation circle center of the telescopic boom.
According to the technical scheme, the tip fixed mounting who rotates the pole has the rotation handle, the surface that rotates the pole is located one side position department fixed mounting who rotates the handle has the resistance plectane, the top fixedly connected with support in grudging post middle part, the top fixed mounting of support has electric lift pole, the top fixed mounting of electric lift pole has the installation flat board, the mid-mounting on the dull and stereotyped top of installation has the mount pad, the middle part of mount pad rotates and installs the pawl, the one end fixedly connected with arc friction disc of installation flat board.
According to the technical scheme, the top end of the stretching flat belt is fixedly connected with the positioning block, and the rotating wheel is positioned right above the lifting plate;
The ratchet wheel and the pawl are positioned on the same vertical plane, one end of the pawl is embedded into a gap at the edge of the ratchet wheel, a limiting block is fixedly arranged at the position of one side of the mounting seat at the top end of the mounting plate, and one end of the bottom of the pawl is tightly attached to the surface of the limiting block.
According to the technical scheme, the rubber pressing block is located right above the push type counter, a distance is reserved between the bottom end of the rubber pressing block and the top end of the push type counter, the arc friction block is tightly attached to the surface of the top end of the resistance circular plate, and the surface of the resistance circular plate is fixedly bonded with the abrasion-resistant rubber pad.
According to the technical scheme, one end of the top of the base is fixedly provided with the convenient counterweight stabilizing mechanism;
The convenient counterweight stabilizing mechanism comprises a storage box;
The utility model discloses a gas-liquid separation device, including base, fixed connection, connecting ring's bottom fixedly connected with fixed pin, the top of gas-liquid separation device is kept away from the one end equidistance fixed mounting of base and is had the metal ring, the middle part fixedly connected with connecting rope of metal ring, the top fixedly mounted of containing box has fixed riser, the top equidistance fixed mounting of fixed riser has the solid fixed ring, the both ends symmetry fixed mounting at containing box top has electric putter, the limit portion of containing box is provided with the guide frame, the middle part movable embedded of guide frame installs the closing plate.
According to the technical scheme, the connecting air pipe movably penetrates through the storage box, the quantity of the fixing rings is the same as that of the connecting ropes, the length of the connecting ropes is larger than the distance between the metal rings and the fixing rings, and the tops of the two electric push rods are connected with the sealing plates.
According to the technical scheme, the one end fixed mounting who connects the trachea middle part has the control valve, the one end fixedly connected with blast pipe of control valve, the both ends symmetry fixedly connected with branch pipe of blast pipe, two the equal fixedly connected with folding bellows of tip of branch pipe, two fixedly connected with push plate between the tip of folding bellows.
According to the technical scheme, the branch pipe penetrates through the storage box, and the folding corrugated pipe and the pushing plate are both positioned in the storage box;
the bottom of one end of the connecting air pipe is fixedly connected with a connecting vertical pipe, the bottom of the connecting vertical pipe is fixedly connected with an electromagnetic valve, the electromagnetic valve is fixedly connected with an inflation pipe, and the bottom of the inflation rubber pool is fixedly bonded with an inclined inflation cushion;
the inclined inflatable cushion is inflated to be bulged to form a trapezoid, and the higher position of the trapezoid is close to the base.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:
1. The lifting position and angle monitoring mechanism is arranged, the deflection angle of the telescopic boom is monitored by utilizing the connecting rod and the observing round rod, the observing round rod rotates along with the telescopic boom and slides in the arc measuring groove, the rotation angle of the telescopic boom can be known according to the moving position of the observing round rod and the scale mark on the surface of the arc fixing plate, great convenience is provided for subsequent lifting after the lifting angle is determined, the telescopic boom is directly deflected to the corresponding angle during subsequent lifting, the deflection angle is prevented from being readjusted after each lifting is completed, the time for adjusting the angle is reduced, the working efficiency is effectively improved, and the positioning before lifting is more accurate;
The length that the stretching flat belt is pulled out is utilized to confirm the length that the stretching flat belt stretches out simultaneously, the length of every circle when stretching flat belt hugs closely the rolling can all confirm, stretching flat belt forward extension can pull stretching flat belt and advance, make winding shaft and rotation round bar rotate, and the arc lug can be pressed to the lifter plate after the rotation round wheel rotates along with it, the extrusion spring is compressed, the rubber press block of lifter plate bottom can be contacted with the top of push type counter, utilize the number of turns that push type counter was rotated by winding shaft, can confirm stretching flat belt length that is pulled out according to winding shaft number of turns, detect the length that stretching flat belt extends from this, position to lifting by crane is decided to the location, when the repeated lifting by crane of same position article pile up department, follow-up lifting can directly stretch out corresponding length with stretching flat belt according to the length that stretches out, and the deflection angle of stretching flat belt is also confirmed, follow-up can be quick according to the data that detects and shift stretching flat arm to lifting by crane position.
2. The pawl and the ratchet wheel are matched with each other, so that the winding shaft is limited when being pulled to rotate to lengthen the stretching flat belt, the reverse rotation condition can not occur, the positions of the mounting plate and the pawl can be adjusted by utilizing the electric lifting rod, when the telescopic boom is contracted and shortened, the ratchet wheel is not limited by the rising of the pawl, and the winding shaft is reversely rotated by utilizing the rotating handle to wind the stretching flat belt, so that the operation is more convenient;
Meanwhile, the arc friction blocks are used for pressing and covering the top end of the resistance circular plate, friction force generated between the arc friction blocks and the resistance circular plate plays a role in blocking the rotary round rod, the phenomenon that the rotary round rod is drawn by the stretching flat belt and excessively rotated to cause the stretching flat belt to be unable to keep a compact and flat state is prevented, and the rotary round rod is limited by friction force when the lifting equipment shakes along with the lifting equipment in the transportation process, so that the rotary round rod cannot easily deflect;
The spotlight is used for generating light beams downwards to mark the lifting position, great convenience is provided for adjusting the lifting position, the position adjustment of the telescopic boom can be indicated to be correct by the fact that the light beams irradiate to the preset position in the adjusting process, the positioning is more accurate, and the position adjustment cannot be performed for many times in the lifting process.
3. The convenient counterweight stabilizing mechanism is arranged, the inflatable rubber pool is inflated and shaped by the air pump, so that the inflatable rubber pool expands on one side of the base, the bottom of the inflatable rubber pool can be fixed through the connecting ring and the fixing pin, the inflatable rubber pool cannot shake easily, the metal ring at one end of the top of the inflatable rubber pool is connected with the fixing ring by the connecting rope, the fixed connection effect between the inflatable rubber pool and the base is achieved, substances (water, sand, soil and the like) in the surrounding environment can be filled into the inflatable rubber pool according to the site environment, the counterweight effect is achieved on the lifting equipment, the lifting equipment is kept stable when being located at the water edge, the road edge and the like, the situation that the gravity center of the lifting equipment is unstable and is inclined when the lifting equipment lifts the heavy object due to the fact that the lifting position is close to the edge is prevented from being unable to be supported is avoided, the counterweight mode is convenient, the counterweight is not needed to carry an excessively heavy counterweight, and the surrounding environment substances are utilized;
Simultaneously, the inflatable rubber pool can be stored and deposited in the storage box, excessive space cannot be occupied when the inflatable rubber pool is idle and carried, and the electric push rod is utilized to drive the sealing plate to move up and down, so that the storage box can be sealed, and the inflatable rubber pool is prevented from falling.
4. Utilize control valve and blast pipe can be with air pump exhaust air current through the leading-in folding bellows of branch pipe inside, the continuous filling of air current has played and has aerifyd the bulge effect to folding bellows for folding bellows can extend forward, carries out the push away to the push plate, when the closing plate rises, the push plate push away can promote the inside folding inflatable rubber pond of containing box forward, makes it can aerify in the outside fast and expand, need not the manual work and draws out, utilizes current aerating device to operate, the operation is more convenient.
5. After lifting, the air flow generated by the air pump through the connecting vertical pipe and the electromagnetic valve is inflated into the inclined inflatable cushion through the inflatable pipe, so that the inclined inflatable cushion is inflated into a trapezoid, one end close to the base is higher, one end of the inflatable rubber pool close to the base is jacked up upwards, the inflatable rubber pool is enabled to be inclined, workers can conveniently clean objects filled in the inflatable rubber pool, the inclined positions are removed, labor is saved, and working efficiency is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the mounting structure of the stand of the present invention;
FIG. 3 is a schematic view of the mounting structure of the tilting inflatable cushion of the present invention;
FIG. 4 is a schematic view of the mounting structure of the rotary gear of the present invention;
FIG. 5 is a schematic view of the mounting structure of the spotlight of the present invention;
FIG. 6 is a schematic view of the structure of the hoisting position and angle monitoring mechanism of the present invention;
FIG. 7 is a schematic view of a portable weight stabilization mechanism of the present invention;
FIG. 8 is a schematic view of the mounting structure of the inflation tube of the present invention;
FIG. 9 is a schematic view of the mounting structure of the pusher plate of the present invention;
Reference numerals in the drawings: 1. a base; 2. rotating the cylinder; 3. a rotary gear; 4. a driving motor; 5. a drive gear; 6. a rotating plate; 7. a telescopic boom;
8. A hoisting position and angle monitoring mechanism; 801. a connecting rod; 802. a deflection block; 803. observing the round rod; 804. a support frame; 805. an arc-shaped fixing plate; 806. an arc measuring groove; 807. scale marks; 808. a bending spring; 809. fixing the circular ring; 810. a spotlight; 811. rotating the round rod; 812. a winding shaft; 813. stretching the flat belt; 814. a positioning block; 815. a rotating wheel; 816. arc-shaped protruding blocks; 817. a ratchet wheel; 818. a vertical frame; 819. a support plate; 820. a push-type counter; 821. a movable rod; 822. extruding a spring; 823. a lifting plate; 824. a resistance circular plate; 825. rotating the handle; 826. a bracket; 827. an electric lifting rod; 828. mounting a flat plate; 829. a mounting base; 830. a pawl; 831. arc friction blocks; 832. pressing the rubber into blocks;
9. A convenient counterweight stabilizing mechanism; 901. a storage box; 902. an air pump; 903. connecting an air pipe; 904. an inflatable rubber pool; 905. a connecting ring; 906. a metal ring; 907. a connecting rope; 908. fixing a vertical plate; 909. a fixing ring; 910. an electric push rod; 911. a guide frame; 912. a sealing plate; 913. a control valve; 914. an exhaust pipe; 915. a branch pipe; 916. folding the corrugated pipe; 917. a pushing plate; 918. connecting a vertical pipe; 919. an electromagnetic valve; 920. an inflation tube; 921. tilting the inflatable cushion; 922. fixing pins; 923. a gas valve;
10. A wire guide wheel; 11. a mounting frame; 12. a wire reel; 13. a winding motor; 14. a traction rope; 15. fixing the round block; 16. a hanging hook; 17. a hydraulic telescopic rod; 18. a fixing seat.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples: as shown in fig. 1-9, the invention provides a technical scheme, a portable crane with adjustable site, which comprises a base 1, wherein a rotary cylinder 2 is rotatably arranged at the top end of the base 1, a driving motor 4 is fixedly arranged at the top end of the base 1 and positioned in the rotary cylinder 2, a driving gear 5 is fixedly connected with an output shaft of the driving motor 4, a rotary plate 6 is fixedly arranged at the top end of the rotary cylinder 2, a rotary gear 3 is fixedly arranged in the middle of the bottom end of the rotary plate 6, a fixed seat 18 is fixedly arranged in the middle of the top end of the rotary plate 6, a telescopic boom 7 is rotatably arranged in the middle of the fixed seat 18, wire guide wheels 10 are symmetrically and fixedly arranged at the top end of the telescopic boom 7, a mounting frame 11 is fixedly arranged at the position of one side of the telescopic boom 7 at the top end of the rotary plate 6, a wire winding shaft 12 is rotatably arranged in the middle of the mounting frame 11, a winding motor 13 is fixedly arranged at one end of the top of the mounting frame 11, a traction rope 14 is wound in the middle of the winding shaft 12, one end of the traction rope 14 is fixedly connected with a fixed circular block 15, the bottom end of the fixed circular block 15 is fixedly provided with a suspension hook 16, the top of the rotating plate 6 is rotatably provided with a hydraulic telescopic rod 17 at one side position of the telescopic boom 7, the top end of the base 1 is provided with a circular clamping groove, the bottom end of the rotating cylinder 2 is movably clamped inside the circular clamping groove, the driving gear 5 and the rotating gear 3 are meshed with each other, an output shaft of the winding motor 13 is fixedly connected with one end of the winding shaft 12, the traction rope 14 is tightly attached to the middle of the two wire guide wheels 10, the top end of the hydraulic telescopic rod 17 is rotatably connected with one end of the bottom of the telescopic boom 7, and the top of the rotating plate 6 is provided with a lifting position and angle monitoring mechanism 8;
The hoisting position and angle monitoring mechanism 8 includes a connecting bar 801, a deflection block 802, an observation round bar 803, a support frame 804, an arc-shaped fixing plate 805, an arc-shaped measurement groove 806, a scale mark 807, a bending spring 808, a fixing round ring 809, a spotlight 810, a rotating round bar 811, a take-up shaft 812, a stretching flat band 813, a positioning block 814, a rotating wheel 815, an arc-shaped projection 816, a ratchet 817, a stand 818, a support plate 819, a push counter 820, a movable bar 821, a pressing spring 822, a lifting plate 823, a resistance circular plate 824, a rotating handle 825, a support 826, an electric lifting bar 827, a mounting plate 828, a mounting seat 829, a pawl 830, an arc-shaped friction block 831, and a rubber pressing block 832;
The telescopic boom comprises a telescopic boom body, a connecting rod 801, a deflection block 802, a scale mark 807, a bending spring 808, a fixed circular ring 809, a spotlight 810, a light beam, a lifting position and a plurality of accurate positioning and adjustment processes, wherein the connecting rod 801 is fixedly arranged at one end of the bottom of the telescopic boom body 7, the deflection block 802 is fixedly connected to one end of the connecting rod 801, the observation circular rod 803 is fixedly connected to the middle of one end of the deflection block 802, the bending spring 808 is fixedly arranged at the top of the rotary plate 6 at one side of the connecting rod 801, the fixed circular ring 809 is fixedly arranged at the side of the top of the fixed circular ring 805, the spotlight 810 is fixedly arranged at the side of the fixed circular ring 809, the spotlight 810 is used for generating a light beam downwards, the lifting position is marked, the lifting position is greatly facilitated, the position of the telescopic boom body is accurately adjusted by irradiating the light beam to the preset position 7 in the adjustment process, and the telescopic boom body cannot be accurately positioned in the adjustment process;
A rotary round bar 811 is rotatably arranged at one end of the top of the fixed seat 18, a winding shaft 812 is fixedly arranged on the surface of the rotary round bar 811, a stretching flat belt 813 is wound in the middle of the winding shaft 812, a positioning block 814 is connected to one end of the top of the telescopic boom 7, a rotary wheel 815 is fixedly arranged in the middle of the rotary round bar 811, the top end of the stretching flat belt 813 is fixedly connected with the positioning block 814, the rotary wheel 815 is positioned right above the lifting plate 823, an arc-shaped protruding block 816 is fixedly arranged at the edge of the rotary wheel 815, a ratchet wheel 817 is fixedly arranged on the surface of the rotary round bar 811 at one side of the rotary wheel 815, a stand 818 is fixedly arranged at the position corresponding to the rotary round bar 811 at the top end of the rotary plate 6, a support flat plate 819 is fixedly arranged at the top end of the stand 818, a pressing counter 820 is fixedly arranged at the middle of the top end of the support flat plate 819, movable rods 821 are symmetrically and movably arranged at two ends of the support flat plate 819 in a penetrating mode, the middle parts of the two movable rods 821 are sleeved with extrusion springs 822, a lifting plate 823 is fixedly arranged between the top ends of the two movable rods 821, a rubber pressing block 832 is fixedly arranged in the middle of the bottom end of the lifting plate 823, the deflection angle of the telescopic boom 7 is monitored by utilizing a connecting rod 801 and an observation round rod 803, the observation round rod 803 rotates along with the telescopic boom 7 and slides in an arc measuring groove 806, the rotation angle of the telescopic boom 7 can be known according to the moving position of the observation round rod 803 and a scale mark 807 on the surface of the arc fixing plate 805, great convenience is provided for subsequent lifting after the lifting angle is determined, the telescopic boom 7 is directly deflected to a corresponding angle during subsequent lifting, the deflection angle is prevented from being readjusted after each lifting is completed, the time for adjusting the angle is reduced, the working efficiency is effectively improved, the positioning before the hoisting is more accurate;
meanwhile, the length of the stretched flat belt 813 which is pulled out is utilized to determine the length of the stretched boom 7, the length of each circle of stretched flat belt 813 can be determined when the stretched flat belt 813 is tightly clung to winding, the stretched flat belt 813 is pulled to advance by the forward stretching of the stretched boom 7, the winding shaft 812 and the rotary round rod 811 rotate, the arc-shaped protruding block 816 can be pressed onto the lifting plate 823 after the rotary wheel 815 rotates together with the stretched flat belt 813, the extrusion spring 822 is compressed, the rubber pressing block 832 at the bottom of the lifting plate 823 can be contacted with the top of the pressing counter 820, the length of the stretched flat belt 813 which is pulled out can be determined according to the rotation circle number of the winding shaft 812 by utilizing the pressing counter 820, the length of the stretched flat belt 813 is detected, the position of the stretched boom 7 is determined, when the lifted repeatedly, the telescopic boom 7 can be stretched out by the corresponding length according to the stretched length, the deflection angle of the telescopic boom 7 can be determined, and the telescopic boom 7 can be quickly deflected to the lifting position according to detected data;
The end of the rotary round rod 811 is fixedly provided with a rotary handle 825, the surface of the rotary round rod 811 is fixedly provided with a resistance circular plate 824 at one side position of the rotary handle 825, the top of the middle part of the stand 818 is fixedly connected with a bracket 826, the top end of the bracket 826 is fixedly provided with an electric lifting rod 827, the top end of the electric lifting rod 827 is fixedly provided with a mounting plate 828, the middle part of the top end of the mounting plate 828 is provided with a mounting seat 829, the middle part of the mounting seat 829 is rotatably provided with a pawl 830, one end of the mounting plate 828 is fixedly connected with an arc friction block 831, the ratchet 817 and the pawl 830 are positioned on the same vertical plane, one end of the pawl 830 is embedded into a gap at the edge of the ratchet 817, the top end of the mounting plate 828 is fixedly provided with a limiting block at one side position of the mounting seat 829, one end of the bottom of the pawl 830 is tightly attached to the surface of the limiting block, so that the pawl 830 cannot overturn downwards, the device can prevent the device from falling down again after rising and being unable to be accurately placed at the edge of the ratchet 817, the rubber pressing block 832 is positioned right above the push type counter 820, a space is reserved between the bottom end of the rubber pressing block 832 and the top end of the push type counter 820, the arc friction block 831 is tightly attached to the surface of the top end of the resistance circular plate 824, the surface of the resistance circular plate 824 is fixedly adhered with a wear-resistant rubber pad, the pawl 830 and the ratchet 817 are mutually matched, the winding shaft 812 is limited when being pulled to rotate to lengthen the stretching flat belt 813, the situation of reverse rotation can not occur, meanwhile, the positions of the mounting plate 828 and the pawl 830 can be adjusted by the electric lifting rod 827, when the shrinkage of the telescopic boom 7 is shortened, the pawl 830 rises and does not limit the ratchet 817, thereby being convenient for workers to wind the stretching flat belt 813 by reversely rotating the winding shaft 812 by the rotating handle 825, the operation is more convenient;
Meanwhile, the arc friction blocks 831 are used for pressing and covering the top end of the resistance circular plate 824, friction force generated between the arc friction blocks 831 and the resistance circular plate 824 plays a role in blocking the rotary round rod 811, the phenomenon that the rotary round rod 811 cannot keep a compact and flat state due to excessive rotation after being pulled by the stretching flat belt 813 is prevented, and the rotary round rod 811 swings along with the lifting equipment in the transportation process and is limited by friction force, so that the rotary round rod 811 cannot deflect easily;
One end of the top of the base 1 is fixedly provided with a convenient counterweight stabilizing mechanism 9;
The portable counterweight stabilization mechanism 9 comprises a storage box 901, an air pump 902, a connecting air pipe 903, an inflatable rubber pool 904, a connecting ring 905, a metal ring 906, a connecting rope 907, a fixed vertical plate 908, a fixed ring 909, an electric push rod 910, a guide frame 911, a sealing plate 912, a control valve 913, an exhaust pipe 914, a branch pipe 915, a folding corrugated pipe 916, a pushing plate 917, a connecting vertical pipe 918, an electromagnetic valve 919, an inflatable pipe 920, an inclined inflatable cushion 921, a fixed pin 922 and an air valve 923;
One end of the top of the base 1 is fixedly provided with a containing box 901, the top of the base 1 is fixedly provided with an air pump 902 at one side of the containing box 901, one end of the air pump 902 is fixedly connected with a connecting air pipe 903, the connecting air pipe 903 movably penetrates through the containing box 901, the end part of the connecting air pipe 903 is fixedly provided with an air valve 923, one end of the air valve 923 is fixedly connected with an inflatable rubber pool 904, two end bottoms of the inflatable rubber pool 904 are symmetrically and fixedly provided with connecting rings 905, the bottom end of the connecting rings 905 is fixedly connected with a fixing pin 922, one end of the top of the inflatable rubber pool 904, far away from the base 1, is fixedly provided with a metal ring 906 at equal intervals, the middle part of the metal ring 906 is fixedly connected with a connecting rope 907, the top of the containing box 901 is fixedly provided with a fixing riser 908, the top of the fixing riser 908 is fixedly provided with a fixing ring 909 at equal intervals, two ends of the top of the containing box 901 are symmetrically and fixedly provided with electric push rods 910, the edge of the storage box 901 is provided with a guide frame 911, the middle part of the guide frame 911 is movably embedded with a sealing plate 912, the number of the fixed rings 909 and the connecting ropes 907 is the same, the length of the connecting ropes 907 is larger than the distance between the metal rings 906 and the fixed rings 909, the top ends of the two electric push rods 910 are connected with the sealing plate 912, the inflatable rubber pool 904 is inflated and shaped by the air pump 902 to expand at one side of the base 1, the bottom of the inflatable rubber pool 904 can be fixed by the connecting rings 905 and the fixing pins 922, the metal rings 906 and the fixed rings 909 at one end of the top of the inflatable rubber pool 904 are connected by the connecting ropes 907, the fixed connection effect between the inflatable rubber pool 904 and the base 1 is achieved, and the inflatable rubber pool 904 can be filled with substances such as water, sand, soil and the like in the surrounding environment according to the field environment, the counterweight is convenient, an excessive counterweight is not needed to be carried, and surrounding environment substances are utilized;
Meanwhile, the inflatable rubber pool 904 can be stored in the storage box 901, excessive space is not occupied when the inflatable rubber pool is idle and carried, and the electric push rod 910 is utilized to drive the sealing plate 912 to move up and down, so that the storage box 901 can be sealed to prevent the inflatable rubber pool 904 from falling;
One end in the middle of the connecting air pipe 903 is fixedly provided with a control valve 913, one end of the control valve 913 is fixedly connected with an exhaust pipe 914, two ends of the exhaust pipe 914 are symmetrically and fixedly connected with branch pipes 915, the ends of the two branch pipes 915 are fixedly connected with folding corrugated pipes 916, a pushing plate 917 is fixedly connected between the ends of the two folding corrugated pipes 916, the branch pipes 915 penetrate through the storage box 901, the folding corrugated pipes 916 and the pushing plate 917 are both positioned in the storage box 901, air flow discharged by the air pump 902 can be led into the inside of the folding corrugated pipes 916 through the branch pipes 915 by using the control valve 913 and the exhaust pipe 914, the air flow is continuously filled, the folding corrugated pipes 916 play a role of inflation, so that the folding corrugated pipes 916 can be stretched forwards, the pushing plate 917 can push out an inflatable rubber pool 904 folded in the storage box 901 when the sealing plate 912 rises, the inflatable rubber pool can be inflated and unfolded on the outer side rapidly, the operation is more convenient and rapid by using the existing inflation device;
Connect the one end bottom fixedly connected with of trachea 903 and connect standpipe 918, connect the bottom fixedly connected with solenoid valve 919 of standpipe 918, solenoid valve 919 fixedly connected with gas tube 920, the bottom mounting in gas filled rubber pond 904 has slope gas filled cushion 921, it is trapezoidal that slope gas filled cushion 921 fills the back of inflation, and trapezoidal higher position is close to base 1, utilize the air current that connects standpipe 918 and solenoid valve 919 can air pump 902 to produce to fill slope gas filled cushion 921 inside after lifting by crane, make it bulge into trapezoidal, and be close to the one end of base 1 higher, one end that is close to base 1 with gas filled rubber pond 904 is upwards jacked, make gas filled rubber pond 904 keep the slope, more make things convenient for the staff to clear away the object of gas filled rubber pond 904 inside, incline position gets rid of, more laborsaving, work efficiency has also been improved.
The working principle and the using flow of the invention are as follows: firstly, carrying lifting equipment to one side close to an article to be lifted according to requirements, if the article to be lifted is placed on a spacious flat ground, carrying out balance support on the article to be lifted by utilizing a balance mechanism of the lifting equipment, if the article to be lifted is positioned at the edge of a road, a certain drop is formed between the article and the road plane, or the article is positioned at the water side, one side of the lifting equipment is positioned at the edge and cannot be supported, a driving motor 4 drives a driving gear 5 to rotate, the driving gear 5 is meshed with a rotating gear 3, a rotating cylinder 2 and a rotating plate 6 rotate, the position of a telescopic boom 7 is adjusted, the telescopic boom 7 faces the direction opposite to the storage box 901, then an electric push rod 910 stretches upwards to drive a sealing plate 912 to lift, one side of the storage box 901 is opened, an air pump 902 is started to generate air flow, an air valve 923 and an electromagnetic valve 919 are closed, a control valve 913 is opened, the air flow enters the inside two folding bellows 916 through a connecting air pipe, the air flow is continuously filled, the two folding bellows 916 are stretched outwards to expand, a pushing plate 917 is pushed forwards, and the rubber inside the storage box is pushed forward by pushing plate 917 can be pushed out of the rubber storage box 904 to move to the inside the rubber storage box 917;
Then, the control valve 913 is closed, the gas valve 923 is opened, the gas pump 902 charges the gas flow into the inflatable rubber pool 904, the inflated inflatable rubber pool is placed on one side of the lifting device, the inflatable rubber pool 904 is fixed on the ground by the fixing pin 922, the bottom of the inflatable rubber pool 904 is stabilized, the inflatable rubber pool 904 is prevented from being inclined, substances such as sand, water and the like are stacked in the inflatable rubber pool 904 according to the surrounding environment of the placement position, the inflatable rubber pool 904 is fixedly bound at the fixing ring 909 by the connecting rope 907, the inflatable rubber pool 904 and the base 1 are mutually fixed by the connecting rope 907, and the inflatable rubber pool 904 plays a role of counterweight to the base 1, so that the base 1 is more stable;
The hydraulic telescopic rod 17 is used for extending and contracting, so that the telescopic boom 7 rotates at a certain angle in the middle of the fixed seat 18, the inclination angle of the telescopic boom 7 is adjusted, the connecting rod 801 and the deflection block 802 are pulled to rotate together when the telescopic boom 7 deflects, the observation round rod 803 slides in the arc measuring groove 806, the bending spring 808 is extruded and contracted by the deflection block 802, meanwhile, the telescopic boom 7 extends upwards, the positioning block 814 pulls the stretching flat belt 813 to extend, the winding shaft 812 and the rotating round rod 811 are pulled and rotated by the stretching flat belt 813, the ratchet wheel 817 and the pawl 830 are mutually matched, the rotating round rod 811 cannot reversely rotate, the rotating wheel 815 rotates along with the rotating round rod 811, the arc-shaped protruding block 816 intermittently contacts and presses the surface of the lifting plate 823, the extrusion spring 822 is compressed to downwards run by the movable rod 821 and the lifting plate 823 when pressed, the rubber pressing block 832 is pressed on the top of the pressing block 820, the pressing number of the pressing block 820 is pressed once every time when the winding shaft 812 rotates, the stretching flat belt 813 is counted once, the thickness of the stretching flat belt 813 is determined, the length of each time can be determined when the stretching flat belt 813 is flatly wound, and the stretching length of the stretching flat belt can be judged;
Starting a spotlight 810, emitting a light beam vertically downwards, irradiating the light beam on an article to be lifted, continuously adjusting the angle and the length of the telescopic boom 7 until the light beam irradiates on the predetermined lifting binding position of the article, keeping the position of the telescopic boom 7 unchanged, recording the position of an observation round rod 803 in an arc measuring groove 806, recording the inclination angle of the telescopic boom 7 according to a scale line 807, and determining the extending length of the stretching flat belt 813 according to the rotation number of a winding shaft 812 recorded by a push-down counter 820, namely recording the extending length of the telescopic boom 7;
The winding motor 13 is utilized to drive the winding shaft 12 to rotate, the traction rope 14 is lengthened and contracted, the article to be lifted can be bound and lifted, the rotating plate 6 rotates, the telescopic boom 7 is inclined to enable the article to be lifted to the corresponding position, when the telescopic boom 7 is lifted, the lifting direction of the telescopic boom 7 is not provided with a supporting mechanism, the inflatable rubber pool 904 carries out the counterweight function on the telescopic boom on the other side, so that the base 1 is stable, the telescopic boom 7 and the lifted article are prevented from being inclined due to overweight and toppling, the lifting is more stable, the stretching flat belt 813 is in a loose state when the telescopic boom 7 is shortened, the electric lifting rod 827 stretches upwards to drive the mounting flat plate 828 to rise, the pawl 830 and the arc-shaped friction block 831 rise, the pawl 830 does not limit the ratchet 817 any more, the worker can utilize the rotating handle 825 to rotate the round rod 811 and the winding shaft 812 to roll the loose stretching flat belt 813, after the winding is completed, the electric lifting rod 827 contracts, the pawl 830 descends one side of the ratchet 817, the arc-shaped friction block is tightly attached to the top end of the resistance round plate 831, and the friction force generated between the two blocks the rotation of the round rod to prevent the rotation flat belt from loosening;
If the lifted articles are stacked more, the lifting is required to be repeated, the telescopic boom 7 is adjusted to the corresponding state according to the recorded inclination angle and the extending length of the telescopic boom 7 by subsequent lifting, the adjustment is not required to be attempted for multiple times, the adjustment time is reduced, the connecting rope 907 is fixed at one end of the fixing ring 909 and is loosened until the lifting work is completed, the inflatable rubber pool 904 and the base 1 are not fixedly connected with each other any more, the air valve 923 is closed, the electromagnetic valve 919 is opened, the air pump 902 generates air flow, the air flow is discharged into the inclined inflatable cushion 921 from the connecting standpipe 918 and the air pump 920, the inclined inflatable cushion 921 presents a trapezoid after being inflated and is higher in level at one end close to the base 1, one end of the bottom of the inflatable rubber pool 904 is jacked up to enable the inflatable rubber pool to be inclined, a worker can take out objects filled in the inflatable rubber pool 904 conveniently, after all objects are removed, a control valve 913, an electromagnetic valve 919 and an air valve 923 are opened simultaneously, an air pump 902 is switched to an air suction state, air in the inflatable rubber pool 904, a folding corrugated pipe 916 and an inclined inflatable cushion 921 is discharged, the inflatable rubber pool is gradually shrunken, the folding corrugated pipe 916 can be gradually contracted to drive a pushing plate 917 to advance towards the inside of the storage box 901, then the inflatable rubber pool 904 and the inclined inflatable cushion 921 are wound and folded to be placed in the inside of the storage box 901, an electric push rod 910 is contracted to drive a sealing plate 912 to advance downwards along a guide frame 911, and the end of the storage box 901 is sealed to prevent the inflatable rubber pool 904 from falling.
Finally, it should be noted that: the foregoing is merely a preferred example of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a portable hoist of scene adjustable, includes base (1), its characterized in that: the top end of the base (1) is provided with a rotating plate (6) and a telescopic boom (7), and the top of the rotating plate (6) is provided with a lifting position and angle monitoring mechanism (8);
The hoisting position and angle monitoring mechanism (8) comprises a connecting rod (801);
a connecting rod (801) is installed at one end of the bottom of the telescopic boom (7), one end of the connecting rod (801) is connected with a deflection block (802), and the middle part of one end of the deflection block (802) is connected with an observation round rod (803);
The top of the rotating plate (6) is provided with a supporting frame (804) at one side of the connecting rod (801), the top of the supporting frame (804) is provided with an arc-shaped fixing plate (805), the middle part of the arc-shaped fixing plate (805) is provided with arc-shaped measuring grooves (806), the side parts of the arc-shaped fixing plate (805) are provided with scale marks (807) at equal intervals, and the top of the supporting frame (804) is provided with a bending spring (808);
The top symmetry fixed mounting of flexible davit (7) has wire wheel (10), the top of rotor plate (6) is located flexible davit (7) one side position department fixed mounting has mounting bracket (11), the middle part of mounting bracket (11) rotates and installs bobbin (12), the one end fixed mounting at mounting bracket (11) top has rolling motor (13), the middle part winding of bobbin (12) has traction rope (14), the one end fixedly connected with fixed circle piece (15) of traction rope (14), fixed ring (809) are installed at the limit portion at fixed circle piece (15) top, spotlight (810) are installed to the limit portion equidistance of fixed ring (809);
a fixed seat (18) is arranged in the middle of the top end of the rotating plate (6), a rotary round rod (811) is rotatably arranged at one end of the top of the fixed seat (18), a winding shaft (812) is arranged on the surface of the rotary round rod (811), and a stretching flat belt (813) is wound in the middle of the winding shaft (812);
One end of the top of the telescopic boom (7) is connected with a positioning block (814), a rotating wheel (815) is arranged in the middle of the rotating round rod (811), an arc-shaped protruding block (816) is arranged at the edge of the rotating wheel (815), and a ratchet wheel (817) is arranged on the surface of the rotating round rod (811) at one side of the rotating wheel (815);
A vertical frame (818) is arranged at the position, corresponding to the rotary round rod (811), of the top end of the rotary plate (6), a supporting flat plate (819) is arranged at the top end of the vertical frame (818), a push type counter (820) is fixedly arranged in the middle of the top end of the supporting flat plate (819), movable rods (821) are symmetrically and movably arranged at the two ends of the supporting flat plate (819) in a penetrating mode, extrusion springs (822) are sleeved at the middle parts of the two movable rods (821), a lifting plate (823) is fixedly arranged between the top ends of the two movable rods (821), and a rubber push block (832) is fixedly arranged in the middle of the bottom end of the lifting plate (823);
The end of the rotary round rod (811) is fixedly provided with a rotary handle (825), the surface of the rotary round rod (811) is fixedly provided with a resistance circular plate (824) at one side of the rotary handle (825), the top of the middle part of the stand (818) is fixedly connected with a bracket (826), the top of the bracket (826) is fixedly provided with an electric lifting rod (827), the top of the electric lifting rod (827) is fixedly provided with a mounting flat plate (828), the middle part of the top of the mounting flat plate (828) is provided with a mounting seat (829), the middle part of the mounting seat (829) is rotatably provided with a pawl (830), and one end of the mounting flat plate (828) is fixedly connected with an arc friction block (831);
the top end of the stretching flat belt (813) is fixedly connected with the positioning block (814), and the rotating wheel (815) is positioned right above the lifting plate (823);
The ratchet wheel (817) and the pawl (830) are positioned on the same vertical plane, one end of the pawl (830) is embedded into a gap at the edge of the ratchet wheel (817), a limiting block is fixedly arranged at the position, located at one side of the mounting seat (829), of the top end of the mounting plate (828), and one end of the bottom of the pawl (830) is tightly attached to the surface of the limiting block;
The rubber pressing block (832) is located right above the push type counter (820), a space is reserved between the bottom end of the rubber pressing block (832) and the top end of the push type counter (820), the arc-shaped friction block (831) is tightly attached to the surface of the top end of the resistance circular plate (824), and a wear-resistant rubber pad is fixedly adhered to the surface of the resistance circular plate (824).
2. The portable crane with adjustable site according to claim 1, characterized in that the top end of the base (1) is rotatably provided with a rotary cylinder (2), the top of the base (1) is fixedly provided with a driving motor (4) inside the rotary cylinder (2), an output shaft of the driving motor (4) is fixedly connected with a driving gear (5), the top end of the rotary cylinder (2) is fixedly provided with a rotary plate (6), the middle part of the bottom end of the rotary plate (6) is fixedly provided with a rotary gear (3), the middle part of the top end of the rotary plate (6) is fixedly provided with a fixing seat (18), the middle part of the fixing seat (18) is rotatably provided with a telescopic boom (7), the bottom end of the fixing round block (15) is fixedly provided with a hanging hook (16), and the top of the rotary plate (6) is rotatably provided with a hydraulic telescopic rod (17) at one side position of the telescopic boom (7).
3. The portable crane with adjustable site according to claim 2, wherein the top end of the base (1) is provided with a circular clamping groove, the bottom end of the rotary cylinder (2) is movably clamped in the circular clamping groove, the driving gear (5) and the rotary gear (3) are meshed with each other, an output shaft of the winding motor (13) is fixedly connected with one end of the winding shaft (12), the traction rope (14) is tightly attached to the middle parts of the two wire guide wheels (10), and the top end of the hydraulic telescopic rod (17) is rotatably connected with one end of the bottom of the telescopic boom (7);
The observation round rod (803) is movably embedded into the arc measuring groove (806), the top end of the bending spring (808) is fixedly connected with one end of the deflection block (802), and the circle center positions of the arc fixing plate (805) and the arc measuring groove (806) are coincident with the rotation circle center of the telescopic boom (7).
4. The portable crane with adjustable field according to claim 2, wherein one end of the top of the base (1) is fixedly provided with a portable counterweight stabilizing mechanism (9);
the portable counterweight stabilizing mechanism (9) comprises a storage box (901);
The utility model discloses a sealing device for a gas turbine engine, including base (1), connecting ring (905), connecting ring (906), connecting rope (907), connecting pipe (903) are connected in the one end fixedly mounted of top in base (1), connecting pipe (903)'s one end fixedly connected with gas valve (923), gas valve (923)'s one end fixedly connected with inflatable rubber pond (904), the equal symmetry fixed mounting in both ends bottom in inflatable rubber pond (904) has connecting ring (905), connecting ring (905)'s bottom fixedly connected with fixed pin (922), one end equidistance fixed mounting that base (1) was kept away from at the top in inflatable rubber pond (904) has metal ring (906), the middle part fixedly connected with connecting rope (907) of metal ring (906), fixed mounting in top of containing box (901) has fixed riser (908), fixed ring (909) are fixed at the top equidistance of fixed riser (908), the both ends symmetry fixed mounting in the top of containing box (901) has electric putter (910), containing box (911) have guide frame (912), guide frame (912) are embedded in middle part.
5. The portable crane with adjustable field according to claim 4, wherein the connecting air pipe (903) is movably penetrating through the storage box (901), the number of the fixing rings (909) is the same as the number of the connecting ropes (907), the length of the connecting ropes (907) is larger than the distance between the metal rings (906) and the fixing rings (909), and the top ends of the two electric push rods (910) are connected with the sealing plates (912).
6. The portable crane with adjustable field according to claim 4, wherein one end of the middle part of the connecting air pipe (903) is fixedly provided with a control valve (913), one end of the control valve (913) is fixedly connected with an exhaust pipe (914), two ends of the exhaust pipe (914) are symmetrically and fixedly connected with branch pipes (915), two ends of the branch pipes (915) are fixedly connected with folding corrugated pipes (916), and a pushing plate (917) is fixedly connected between the ends of the two folding corrugated pipes (916).
7. The portable crane with adjustable field according to claim 6, wherein the branch pipe (915) penetrates through the storage box (901), and the folding bellows (916) and the pushing plate (917) are both positioned inside the storage box (901);
A connecting vertical pipe (918) is fixedly connected to the bottom of one end of the connecting air pipe (903), an electromagnetic valve (919) is fixedly connected to the bottom end of the connecting vertical pipe (918), an air charging pipe (920) is fixedly connected to the electromagnetic valve (919), and an inclined air charging cushion (921) is fixedly bonded to the bottom end of the air charging rubber pool (904);
the inclined inflatable cushion (921) presents a trapezoid after being inflated and inflated, and the higher position of the trapezoid is close to the base (1).
Priority Applications (1)
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| CN114524364A (en) * | 2022-02-09 | 2022-05-24 | 魏二影 | Dedicated tower crane of construction site hangs down straightness real-time supervision and alarm device |
| CN115417328A (en) * | 2022-10-14 | 2022-12-02 | 江西容大建工集团有限公司 | Hydraulic engineering uses multi-functional lifting machine |
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| DE102017202009A1 (en) * | 2016-03-21 | 2017-09-21 | Tadano Faun Gmbh | crane |
| CN115571796B (en) * | 2022-11-04 | 2023-10-20 | 菲尔森智能装备(江苏)有限公司 | Telescopic boom for crane |
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| CN115417328A (en) * | 2022-10-14 | 2022-12-02 | 江西容大建工集团有限公司 | Hydraulic engineering uses multi-functional lifting machine |
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