CN117003142A - Stable crane beam and crane - Google Patents
Stable crane beam and crane Download PDFInfo
- Publication number
- CN117003142A CN117003142A CN202311269654.XA CN202311269654A CN117003142A CN 117003142 A CN117003142 A CN 117003142A CN 202311269654 A CN202311269654 A CN 202311269654A CN 117003142 A CN117003142 A CN 117003142A
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- China
- Prior art keywords
- crane
- crane beam
- beam arm
- telescopic rod
- supporting
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 claims description 59
- 239000010959 steel Substances 0.000 claims description 59
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 19
- 230000001681 protective effect Effects 0.000 description 13
- 230000007246 mechanism Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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
- 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
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
-
- 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
-
- 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
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
-
- 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
- B66C23/823—Bracing equipment acting in vertical direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention is applicable to the field of building equipment, and provides a stable crane beam, which comprises a crane beam arm assembly, wherein the crane beam arm assembly comprises a crane beam arm and a reinforced support frame; the crane beam arm comprises a primary crane beam arm, a secondary crane beam arm and a telescopic crane beam arm; the second-level crane beam arm is movably inserted into the first-level crane beam arm, and a first pneumatic cylinder is arranged in the first-level crane beam arm; the reinforced support frame comprises a first hydraulic telescopic rod; the length of the second-stage crane beam arm inserted into the first-stage crane beam arm is controlled through the first pneumatic cylinder, the main direction of the second-stage crane beam arm is adjusted by combining the first telescopic adjustment of the hydraulic telescopic rod, the supporting position of the reinforcing support frame is further adjusted, the supporting position of the reinforcing support frame serving as a lever supporting point is flexibly adjusted, the lifting weight is well supported by flexibly adjusting the lever balance supporting point according to the lifting weight movement, the stability is improved, and rollover is avoided.
Description
Technical Field
The invention relates to the field of building equipment, in particular to a stable crane beam and a crane.
Background
The crane mainly comprises a lifting mechanism, an operating mechanism, an amplitude changing mechanism, a slewing mechanism, a metal structure and the like; is a multi-action hoisting machine for vertically hoisting and horizontally carrying heavy objects in a certain range; the lifting mechanism is a basic working mechanism of the crane and mostly consists of a hanging system and a winch, and also lifts and lowers heavy objects through a hydraulic system; the lifting device is mainly used for lifting finished articles, and can be used for lifting bulk materials and liquid materials after being provided with a proper lifting appliance; the running mechanism is used for longitudinally and horizontally moving weights or adjusting the working position of the crane and generally consists of a motor, a speed reducer, a brake and wheels; the crane is characterized in that the crane intermittently moves, namely, corresponding mechanisms of taking, moving, unloading and the like in one working cycle alternately work.
The boom crane is constructed, the long boom which extends outwards can be used for carrying heavy objects to a place far away from the machine base, and the lifting capacity of the inclined boom crane is expressed by the rated lifting capacity and the rated lifting moment when the boom is at the minimum amplitude; the amplitude is the horizontal distance of the lifting appliance from the rotation center line of the crane, and the lifting moment is the product of the gravity and the amplitude of the lifted object.
In practical application, in order to improve the stability of the tire crane and avoid rollover, support legs are generally additionally arranged, but the support legs cannot well flexibly adjust lever balance support points according to the movement of the lifting weight to support the lifting weight, so that the stability is limited (for example, the hydraulic support leg disclosed by the Chinese patent with the publication number of CN110758580B is used for flexibly adjusting the lever balance support points according to the movement of the lifting weight to support the lifting weight, so that the stability is limited); in addition, for stability, there is a high-safety manner that a triangular ground inserting claw is inserted into the bottom surface through an avoiding groove as disclosed in a wheeled crane with high safety in China patent with an authorized publication number of CN111661764B, which still has the situation that a lever balance supporting point cannot be flexibly adjusted according to the movement of a hoisting weight well, and the ground (such as cement ground, asphalt road and the like) is damaged; furthermore, in order to improve the stability of the tire crane and avoid rollover in the prior art, support legs are additionally arranged, but the support legs cannot be well used for flexibly adjusting lever balance support points according to the movement of the lifting weight to support the lifting weight, so that the stability is limited.
Disclosure of Invention
The invention aims to solve the defects in the prior art: the support leg of the tire crane cannot well flexibly adjust a lever balance supporting point according to the movement of a lifting weight to support the lifting weight, so that stability is limited.
The specific technical scheme is as follows: the stable crane beam comprises a crane beam arm assembly, wherein the crane beam arm assembly comprises a crane beam arm and a reinforced support frame; the crane beam arm comprises a primary crane beam arm, a secondary crane beam arm and a telescopic crane beam arm; the second-level crane beam arm is movably inserted into the first-level crane beam arm, and the length of the second-level crane beam arm inserted into the first-level crane beam arm is controlled by a first pneumatic cylinder arranged in the first-level crane beam arm; the reinforced support frame is additionally arranged on the beam arm of the secondary crane; the reinforced support frame comprises a first hydraulic telescopic rod, the first hydraulic telescopic rod is fixed on the beam arm of the secondary crane through a fixing plate, the first hydraulic telescopic rod is arranged in parallel with the beam arm of the secondary crane, the first hydraulic telescopic rod is used for adjusting the direction of the main body of the beam arm of the secondary crane in a telescopic manner, and the reinforced support frame is adjusted to serve as the supporting position of a lever supporting point.
When the heavy object is hoisted, the reinforced support frame is used for supporting the ground, the reinforced support frame is further used as a lever supporting point, the length of the second-stage crane beam arm penetrating inside the first-stage crane beam arm is controlled through the first pneumatic cylinder, the main body direction of the second-stage crane beam arm is achieved by combining the first telescopic adjustment of the hydraulic telescopic rod, the supporting position of the reinforced support frame is further adjusted, the supporting position of the reinforced support frame used as the lever supporting point is flexibly adjusted, the balanced supporting point of the lever is flexibly adjusted according to the movement of the hoisted heavy object to support the hoisted heavy object, the stability is improved, and rollover is avoided.
In the technical scheme of the invention, the reinforced support frame also comprises a second hydraulic telescopic rod, a telescopic support arm and a support single leg; one end of the telescopic supporting arm is fixedly provided with a U-shaped connecting plate, the U-shaped connecting plate is rotatably connected to a supporting towing platform, the supporting towing platform is fixed at the end of the first hydraulic telescopic rod, and the supporting towing platform is attached to the beam arm of the secondary crane; one end of the second hydraulic telescopic rod is hinged on the supporting towing table, and the other end of the second hydraulic telescopic rod is hinged on the U-shaped connecting plate; the other end of the telescopic supporting arm is fixedly provided with an angle adjusting disc, the angle adjusting disc is arranged on a longitudinal guide rail, a sliding sleeve is connected to the longitudinal guide rail in a sliding manner, and the sliding sleeve is connected to a transverse guide rail in a sliding manner; the support single leg is provided with two, and the symmetrical distribution is at transverse guide rail both ends.
In the lifting process of the crane Liang Beizong, the crane beam arm assembly is lifted by starting the telescopic supporting arm to stretch and retract so as to be stably supported on the ground; the crane beam arm assembly moves through the position adjustment of the longitudinal guide rail and the transverse guide rail, and the rotation of the angle adjusting disc is started by taking one supporting single leg as a rotation point to realize large-range movement, so that the lever balance supporting point is flexibly adjusted according to the movement of the lifting weight to support the lifting weight, the stability is improved, and the rollover is avoided.
Further, the telescopic supporting arm is an air pressure telescopic rod I, the angle adjusting disc comprises a motor, and the motor is used for driving the longitudinal guide rail, the transverse guide rail and the supporting single leg to rotate and adjust after outputting rotating power; the transverse guide rail is internally provided with a second pneumatic telescopic rod, one end of the second pneumatic telescopic rod is fixed in the transverse guide rail, and the other end of the second pneumatic telescopic rod is fixed on the sliding sleeve; the inside of the longitudinal guide rail is provided with a pneumatic telescopic rod III, one end of the pneumatic telescopic rod III is fixed inside the longitudinal guide rail, and the other end of the pneumatic telescopic rod III is fixed on the sliding sleeve.
Further, the supporting single leg comprises a hydraulic telescopic rod III, one end of the hydraulic telescopic rod III is fixedly provided with a supporting leg, the other end of the hydraulic telescopic rod III is rotationally connected with a guiding sliding disc, a rotary connecting plate is fixedly arranged on the guiding sliding disc and rotationally connected inside a sliding groove, a hydraulic telescopic rod IV is arranged inside the sliding groove and used for controlling the supporting single leg to be rotationally stored in a position parallel to the transverse guide rail; the spout is seted up inside the direction spout, and the direction spout is seted up at the locating station, and the locating station is fixed in transverse guide's end department.
After the hydraulic telescopic rod is used for three-shrinkage, after one supporting single leg in two symmetries is shrunk, the other supporting single leg is used as a rotation point to start an angle adjusting disc to rotate for realizing large-range movement; meanwhile, after the length of the supporting single legs is adjusted, the supporting single legs can be matched with a crane Liang Beizong to hoist and lift, two supporting single legs with a height higher than a height lower than the height can be improved to be stably fixed on different grounds or different positions of different buildings in an adaptive mode, and the supporting single legs are well matched with the lifting single legs to flexibly adjust lever balance supporting points to support lifting heavy objects according to the movement of the lifting heavy objects, so that stability is improved, and rollover is avoided.
In the technical scheme of the invention, the telescopic crane beam arm is movably inserted into the secondary crane beam arm, and the length of the telescopic crane beam arm inserted into the secondary crane beam arm is controlled by a pneumatic cylinder II arranged in the secondary crane beam arm; the telescopic crane beam arm consists of a plurality of sleeves which are inserted in a movable manner, and the inserted length of the sleeves is adjusted through three control of a pneumatic cylinder.
In the technical scheme of the invention, a winch is additionally arranged on the crane beam arm assembly, the winch comprises a winch body, the winch body is additionally arranged on the crane beam arm assembly, a steel rope is connected to the winch body in a transmission way, and a guide groove of the steel rope, which is limited on a guide groove, is arranged at the end part of the crane beam arm assembly; the tail end of the steel rope is fixed with a hook; the lower end of the guide groove is fixedly provided with a steel rope protection pipe fitting sleeved on the steel rope, and the steel rope protection pipe fitting is used for protecting and improving the strength of the steel rope; the steel rope protection pipe fitting is telescopic.
When the hanging weight is hung under the hook, the steel rope protective pipe fitting extends along with the hook, after the hook is lifted up by the steel rope, the steel rope protective pipe fitting is lifted up and contracted along with the hook, and the steel rope protective pipe fitting is fixed in the guide groove, so that the hanging weight can be prevented from swinging randomly on one hand, and the strength of the steel rope is improved on the other hand.
Furthermore, the steel rope protection pipe fitting consists of a plurality of unit steel rope protection pipe fittings, and each unit steel rope protection pipe fitting consists of two symmetrically-inserted and buckled protection pipes; the protection pipe comprises a positioning ring and a unit plate, wherein the unit plate is provided with a plurality of positioning rings and is distributed on the positioning ring in a ring-shaped array.
Preferably, the unit board comprises a plurality of through inserting boards and a plurality of outer containing boards, and the plurality of through inserting boards and the plurality of outer containing boards are distributed in a cross array; the inserting plate is movably inserted into a storage cavity formed in the outer storage plate, a guide convex edge is fixed on the inserting plate, and a limit groove is formed in the storage cavity in cooperation with the guide convex edge; the guide convex edge is connected in the limit groove in a sliding way; the two symmetrically inserted and buckled protection pipes are connected with each other in a sliding way through the guide grooves and the limiting convex edges, so that movable insertion is completed; the guide groove and the limit groove are both connected with anti-falling safety ropes.
Another object of the present invention is to provide a crane comprising a crane body assembly having the above-described stabilizing crane beam mounted thereon; the crane body assembly comprises a crane body, a rotating base assembly is additionally arranged on the crane body, and the rotating base assembly is additionally arranged at the bottom of the crane beam arm assembly; the rotating base component is provided with a cab.
In the technical scheme of the invention, the rotating base assembly comprises a rotating disc, two guide rails which are arranged in parallel are additionally arranged on the rotating disc, and the guide rails are connected with a guide supporting table in a sliding manner; a second hinging table is additionally arranged on the guide supporting table, and a hydraulic cylinder is rotationally connected to the second hinging table; a connecting plate is fixed on the guide supporting table, a fixed table is fixed on the connecting plate, a first hinging table is fixed on the fixed table, and a rotating plate is rotationally connected on the first hinging table; the rotating plate and the hydraulic cylinder are both fixed on the crane beam arm assembly.
Compared with the prior art, the invention has the beneficial effects of stabilizing the crane beam:
when a heavy object is hoisted, the reinforced support frame is used for supporting the ground, the reinforced support frame is further used as a lever supporting point, the length of the second-stage crane beam arm inserted into the first-stage crane beam arm is controlled through the first pneumatic cylinder, the supporting position of the reinforced support frame is further adjusted along the main body direction of the second-stage crane beam arm by combining the first telescopic adjustment of the hydraulic telescopic rod, the supporting position of the reinforced support frame is flexibly adjusted, the reinforced support frame is flexibly adjusted to serve as the supporting position of the lever supporting point, the lever balance supporting point is flexibly adjusted according to the movement of the hoisted heavy object to support the hoisted heavy object, the stability is improved, and rollover is avoided;
in the lifting process of the crane Liang Beizong, the crane beam arm assembly is lifted by starting the telescopic supporting arm to stretch and retract so as to be stably supported on the ground; the crane beam arm assembly moves through position adjustment of the longitudinal guide rail and the transverse guide rail, and starts an angle adjusting disc to rotate by taking a supporting single leg as a rotating point to realize large-range movement, so that the lever balance supporting point is flexibly adjusted according to the movement of the lifting weight to support the lifting weight, the stability is improved, and rollover is avoided;
after the hydraulic telescopic rod is used for three-shrinkage, after one supporting single leg in two symmetries is shrunk, the other supporting single leg is used as a rotation point to start an angle adjusting disc to rotate for realizing large-range movement; meanwhile, after the length of the single support leg is adjusted, the single support leg can be matched with a crane Liang Beizong to hoist and lift, two single support legs with a height and a low height can be improved to be adaptively and stably fixed on different grounds or different positions of different buildings, and the lever balance supporting points are flexibly adjusted according to the movement of the hoisting weight to support the hoisting weight, so that the stability is improved, and side turning is avoided;
when the hanging weight is hung under the hook, the steel rope protective pipe fitting extends along with the hook, after the hook is lifted up by the steel rope, the steel rope protective pipe fitting is lifted up and contracted along with the hook, and the steel rope protective pipe fitting is fixed in the guide groove, so that the hanging weight can be prevented from swinging randomly on one hand, and the strength of the steel rope is improved on the other hand.
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 a crane according to the present invention;
FIG. 2 is a schematic view of the structure of the crane of the present invention with the crane body removed;
FIG. 3 is a schematic view of the swivel base assembly of FIG. 1;
FIG. 4 is a schematic view of the structure of the stabilized crane beam of the present invention;
FIG. 5 is a schematic view of the structure of the reinforcing cage of FIG. 4;
FIG. 6 is a schematic view of the structure of the support single leg of FIG. 5;
FIG. 7 is a schematic diagram of the assembled structure of the primary, secondary and telescoping crane booms of FIG. 4;
FIG. 8 is an illustration of the crane of the present invention using a reinforcing support frame;
FIG. 9 is an illustration of the crane of the present invention using a transverse rail on a reinforcing support frame for transverse steering;
FIG. 10 is an illustration of the crane of the present invention using longitudinal guides on the reinforcement support frame for longitudinal guidance;
FIG. 11 is a diagram showing the rotation of the reinforced support frame after the single leg is contracted by using one side of the reinforced support frame in the crane of the invention;
FIG. 12 is a drawing showing the steel rope protection pipe fitting of the crane according to the present invention after shrinkage;
fig. 13 is a schematic structural view of the steel rope protecting pipe fitting in fig. 1;
fig. 14 is a schematic structural view of the unit steel rope protecting pipe fitting of fig. 13;
FIG. 15 is a schematic view of the protective tube of FIG. 14;
FIG. 16 is a schematic view of the structure of the patch panel of FIG. 15;
FIG. 17 is a schematic view of the outer receiving plate of FIG. 15;
fig. 18 is a schematic view showing a change in the supporting position of the beam arm adjusting reinforcement supporting frame 240 of the secondary crane of fig. 4 as a lever supporting point.
In the drawings, the list of components represented by the various numbers is as follows:
100. a crane body assembly; 110. the device comprises a cab, 120, a winch (121, a winch body, 122, a steel rope, 123, a guide groove, 124 and a hook), 130, a rotating base component (131, a rotating disc, 132, a guide supporting table, 133, a guide rail, 134, a connecting plate, 135, a fixed table, 136, a first hinging table, 137, a rotating plate, 138, a second hinging table, 139 and a hydraulic cylinder), 140 and a crane body;
200. a crane beam arm assembly; 210. primary crane beam arm 220, secondary crane beam arm 230, telescopic crane beam arm 240, reinforced support frame (241, support single leg 242, transverse guide rail 243, longitudinal guide rail 244, sliding sleeve 245, angle adjusting disc 246, telescopic support arm 247, U-shaped connecting plate 248, hydraulic telescopic rod one, 249, fixed plate 250, support towing platform 251, hydraulic telescopic rod two, 2411, positioning platform, 2412, chute 2413, guide chute 2414, rotary connecting plate 2415, guide sliding disc 2416, hydraulic telescopic rod three, 2417, support leg);
300. steel rope protective pipe fitting; 310. unit steel rope protective pipe fittings, 320, protective pipes; 321. positioning rings 322, unit plates 323, penetrating plates (3231, guiding flanges) 324, outer accommodating plates (3241, limiting grooves 3242, accommodating cavities).
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In an embodiment of the present invention, as shown in fig. 4 to 7: a stabilized crane beam comprising a crane Liang Beizong to 200, said crane beam arm assembly 200 comprising a crane beam arm and a reinforcing support frame 240;
the crane beam comprises a primary crane beam 210, a secondary crane beam 220 and a telescopic crane beam 230; the secondary crane beam arm 220 is movably inserted into the primary crane beam arm 210, and the length of the secondary crane beam arm 220 inserted into the primary crane beam arm 210 is controlled by a pneumatic cylinder I arranged in the primary crane beam arm 210; the reinforcing support frame 240 is additionally arranged on the beam arm 220 of the secondary crane;
summarizing the above description, one can obtain: when a weight is hoisted, the reinforced support frame 240 is used for supporting the ground, so that the reinforced support frame 240 is further used as a lever supporting point, the stability of the tire crane is improved, and rollover is avoided; meanwhile, the first pneumatic cylinder is started to control the length of the second crane beam arm 220 inserted into the first crane beam arm 210, so that the supporting position of the reinforcing support frame 240 serving as a lever supporting point can be flexibly adjusted (particularly, the change demonstration diagram of the supporting position of the reinforcing support frame 240 serving as the lever supporting point can be consulted with the second crane beam arm 220 in fig. 18), the lever balance supporting point can be flexibly adjusted according to the movement of the lifting weight to support the lifting weight, and the stability is improved;
the reinforced support frame 240 comprises a first hydraulic telescopic rod 248, the first hydraulic telescopic rod 248 is fixed on the secondary crane beam arm 220 through a fixed plate 249, the first hydraulic telescopic rod 248 is arranged to be parallel to the secondary crane beam arm 220, the first hydraulic telescopic rod 248 is used for adjusting the support position of the reinforced support frame 240 as a lever support point along the main body direction of the secondary crane beam arm 220 in a telescopic manner;
summarizing the above description, one can obtain: the reinforced support frame 240 is used for supporting the ground, the reinforced support frame 240 is further used as a lever supporting point, the first 248 telescopic adjustment of the hydraulic telescopic rod is started to adjust the supporting position of the reinforced support frame 240 serving as the lever supporting point along the main body direction of the beam arm 220 of the secondary crane, the supporting position of the reinforced support frame 240 serving as the lever supporting point is flexibly adjusted, the balanced supporting point of the lever is flexibly adjusted according to the movement of the lifting weight to support the lifting weight, the stability is improved, and rollover is avoided.
Therefore, when the heavy object is hoisted, the reinforced support frame 240 is used for supporting the ground, the reinforced support frame 240 is further used as a lever supporting point, the length of the second-stage crane beam arm 220 inserted into the first-stage crane beam arm 210 is controlled through the first pneumatic cylinder, the supporting position of the reinforced support frame 240 is further adjusted by combining the first 248 telescopic adjustment of the hydraulic telescopic rod along the main body direction of the second-stage crane beam arm 220, the supporting position of the reinforced support frame 240 is flexibly adjusted, the supporting position of the reinforced support frame 240 as the lever supporting point is flexibly adjusted, the balanced supporting point of the lever is flexibly adjusted according to the movement of the hoisted heavy object to support the hoisted heavy object, the stability is improved, and rollover is avoided.
In the embodiment of the present invention, as shown in fig. 5: the reinforced support frame 240 further comprises a second hydraulic telescopic rod 251, a telescopic support arm 246 and a support single leg 241;
one end of the telescopic support arm 246 is fixed with a U-shaped connecting plate 247, the U-shaped connecting plate 247 is rotatably connected to a support dragging table 250, the support dragging table 250 is fixed at the end of a first hydraulic telescopic rod 248, and the support dragging table 250 is attached to the beam arm 220 of the secondary crane; one end of the second hydraulic telescopic rod 251 is hinged on the supporting towing table 250, and the other end is hinged on the U-shaped connecting plate 247;
an angle adjusting disc 245 is fixed at the other end of the telescopic supporting arm 246, the angle adjusting disc 245 is arranged on the longitudinal guide rail 243, the longitudinal guide rail 243 is connected with a sliding sleeve 244 in a sliding manner, and the sliding sleeve 244 is connected with the transverse guide rail 242 in a sliding manner;
the support single leg 241 is provided with two and symmetrically distributed at two ends of the transverse guide rail 242.
Summarizing the above description, one can obtain: when a heavy object is hoisted, after the supporting position serving as a lever supporting point is adjusted by using the combination of the secondary crane beam arm 220 and the first hydraulic telescopic rod 248, the second hydraulic telescopic rod 251 is started to adjust the inclination angles of the telescopic supporting arm 246, the longitudinal guide rail 243, the transverse guide rail 242 and the supporting single leg 241 so that the supporting single leg 241 is vertically supported on the ground or a building, and then the telescopic supporting arm 246 is started to carry out telescopic adjustment so that the lower parts of the longitudinal guide rail 243, the transverse guide rail 242 and the supporting single leg 241 are supported on the ground or the building, and meanwhile, the crane beam arm assembly 200 is matched for hoisting and lifting, and the ground is supported by using the reinforced support frame 240 so as to realize the improvement of the stability of the tire crane and the avoidance of side turning;
and during the lifting process of the crane beam assembly 200, the crane beam assembly 200 is lifted by starting the telescopic supporting arm 246 to stretch and retract so as to be stably supported on the ground; the crane beam arm assembly 200 is moved by adjusting the positions of the longitudinal guide rail 243 and the transverse guide rail 242 (refer to the transverse guide rail 242 on the reinforcing support frame 240 in fig. 9 for transverse guiding, refer to the longitudinal guide rail 243 on the reinforcing support frame 240 in fig. 10 for longitudinal guiding), and by starting the rotation of the angle adjusting plate 245 by taking one supporting single leg 241 as a rotation point for large-scale movement (refer to the transverse guide rail 242 on one side of the reinforcing support frame 240 in fig. 11 for rotation after the supporting single leg 241 is contracted), so as to ensure that the balance supporting point of the lever can be flexibly adjusted according to the movement of the lifting weight to support the lifting weight, improve the stability and avoid rollover.
In the embodiment of the present invention, as shown in fig. 5: the telescopic supporting arm 246 is an air pressure telescopic rod I, the angle adjusting disc 245 comprises a motor, and the motor is used for driving the longitudinal guide rail 243, the transverse guide rail 242 and the supporting single leg 241 to rotate and adjust after outputting rotating power;
the transverse guide rail 242 is internally provided with a second pneumatic telescopic rod, one end of the second pneumatic telescopic rod is fixed in the transverse guide rail 242, and the other end of the second pneumatic telescopic rod is fixed on the sliding sleeve 244; the longitudinal guide rail 243 is internally provided with a third pneumatic telescopic rod, one end of the third pneumatic telescopic rod is fixed inside the longitudinal guide rail 243, and the other end of the third pneumatic telescopic rod is fixed on the sliding sleeve 244.
Summarizing the above description, one can obtain: after the two supporting single legs 241 are supported on the ground or a building, in the process of lifting and moving the crane Liang Beizong into 200, the air pressure telescopic rod II is started, so that the reinforcing support frame 240 transversely moves on the transverse guide rail 242, the air pressure telescopic rod III is started, the reinforcing support frame 240 longitudinally moves on the longitudinal guide rail 243, and the angle adjusting disc 245 is started to rotate by taking one supporting single leg 241 as a rotating point to realize large-range movement in a combined manner, so that the lever balance supporting point is flexibly adjusted according to the movement of a lifting weight to support the lifting weight, the stability is improved, and rollover is avoided.
In the embodiment of the present invention, as shown in fig. 6: the supporting single leg 241 comprises a third hydraulic telescopic rod 2416, one end of the third hydraulic telescopic rod 2416 is fixed with a supporting leg 2417, the other end of the third hydraulic telescopic rod is rotatably connected with a guiding sliding plate 2415, a rotary connecting plate 2414 is fixed on the guiding sliding plate 2415, the rotary connecting plate 2414 is rotatably connected inside a sliding groove 2412, a fourth hydraulic telescopic rod is installed inside the sliding groove 2412, and the fourth hydraulic telescopic rod is used for controlling the supporting single leg 241 to be rotatably stored in a position parallel to the transverse guide rail 242;
the chute 2412 is disposed within the guide chute 2413, the guide chute 2413 is disposed on the positioning stage 2411, and the positioning stage 2411 is fixed to the end of the transverse rail 242.
Summarizing the above description, one can obtain: after the hydraulic telescopic rod III 2416 is used for shrinkage, after one supporting single leg 241 of two symmetries is completed, the other supporting single leg 241 is used as a rotation point to start the rotation of an angle adjusting disc 245 for realizing large-range movement (refer to a demonstration diagram of the reinforced supporting frame 240 in FIG. 11 that the supporting single leg 241 is used for rotation after shrinkage); meanwhile, after the length of the supporting single leg 241 is adjusted, the two supporting single legs 241 which are high and low can be improved to be stably fixed on different grounds or different positions of different buildings in an adaptive mode besides being lifted and lowered by being matched with the crane beam arm assembly 200, and the lever balance supporting points are flexibly adjusted according to the movement of the lifting weight to support the lifting weight, so that the stability is improved, and rollover is avoided.
In the embodiment of the present invention, as shown in fig. 4 and 7: the telescopic crane beam arm 230 is movably inserted into the secondary crane beam arm 220, and the length of the telescopic crane beam arm 230 inserted into the secondary crane beam arm 220 is controlled by a pneumatic cylinder II arranged in the secondary crane beam arm 220;
the telescopic crane beam 230 is composed of a plurality of sleeves which are inserted and penetrated mutually, and the penetration length between the sleeves is adjusted by three control of the pneumatic cylinder.
In the embodiment of the invention, as shown in fig. 1, 12-17: the winch 120 is additionally arranged on the crane beam arm assembly 200, the winch 120 comprises a winch body 121, the winch body 121 is additionally arranged on the crane beam arm assembly 200, a steel rope 122 is connected to the winch body 121 in a transmission manner, and the steel rope 122 is limited on a guide groove 123, and the guide groove 123 is arranged at the end part of the crane beam arm assembly 200; a hook 124 is fixed at the tail end of the steel rope 122;
the lower end of the guide groove 123 is fixedly provided with a steel rope protection pipe fitting 300 sleeved on the steel rope 122, and the steel rope protection pipe fitting 300 is used for protecting and improving the strength of the steel rope 122; the steel cord protection tube 300 is provided with a telescopic (the extension can be referred to in fig. 1 and the contraction can be referred to in fig. 12).
Summarizing the above description, one can obtain: when the hook 124 is used for lowering and lifting heavy objects, the steel rope protective pipe fitting 300 is extended along with the hook 124, and after the hook 124 is lifted by the steel rope 122, the steel rope protective pipe fitting 300 is lifted and contracted along with the hook 124, and the steel rope protective pipe fitting 300 is fixed on the guide groove 123, so that on one hand, the lifted heavy objects can be prevented from swinging randomly, and on the other hand, the strength of the steel rope 122 is improved.
In an embodiment of the present invention, as shown in fig. 13 to 15: the steel rope protecting pipe fitting 300 is composed of a plurality of unit steel rope protecting pipe fittings 310, and the unit steel rope protecting pipe fittings 310 are composed of two symmetrically-inserted and buckled protecting pipes 320;
the protection tube 320 comprises a positioning ring 321 and a unit plate 322, and the unit plate 322 is provided with a plurality of units and distributed on the positioning ring 321 in a ring array.
Summarizing the above description, one can obtain: when the hanging weight is placed under the hanging hook 124, the two symmetrically-inserted and buckled protection pipes 320 are separated from each other, so that the unit steel rope protection pipe fitting 310 is stretched, and the steel rope protection pipe fitting 300 is stretched along with the hanging hook 124; after the steel rope 122 lifts the hook 124, the two symmetrically-inserted and buckled protection pipes 320 are mutually inserted and buckled to complete the shortening of the unit steel rope protection pipe fitting 310, and the steel rope protection pipe fitting 300 is lifted and contracted along with the hook 124.
In an embodiment of the present invention, as shown in fig. 15 to 17: the unit plate 322 includes a plurality of insertion plates 323 and a plurality of outer receiving plates 324, and the plurality of insertion plates 323 and the plurality of outer receiving plates 324 are arranged in a staggered array;
the insertion plate 323 is movably inserted into a storage cavity 3242 formed in the outer storage plate 324, a guide convex edge 3231 is fixed on the insertion plate 323, and a limit groove 3241 is formed in the storage cavity 3242 in cooperation with the guide convex edge 3231; the guide convex edge 3231 is connected inside the limit groove 3241 in a sliding way;
the unit plates 322 of the two symmetrically inserted and buckled protection pipes 320 are connected in a sliding way through the guide grooves and the limiting convex edges, so that movable insertion is completed;
the guide groove and the limit groove 3241 are connected with anti-falling safety ropes.
Another object of the invention is to provide a crane as shown in fig. 1-3: the crane comprises a crane body assembly 100, wherein the crane body assembly 100 is provided with the stable crane beam;
the crane body assembly 100 comprises a crane body 140, a rotating base assembly 130 is additionally arranged on the crane body 140, and the rotating base assembly 130 is additionally arranged at the bottom of the crane beam arm assembly 200; the swivel base assembly 130 has a cab 110 mounted thereon.
In the embodiment of the present invention, as shown in fig. 3: the rotary base assembly 130 comprises a rotary disc 131, two guide rails 133 which are arranged in parallel are additionally arranged on the rotary disc 131, and the guide rails 133 are connected with a guide supporting table 132 in a sliding manner; a second hinging table 138 is additionally arranged on the guide supporting table 132, and a hydraulic cylinder 139 is rotatably connected to the second hinging table 138;
a connecting plate 134 is fixed on the guide supporting table 132, a fixed table 135 is fixed on the connecting plate 134, a first hinge table 136 is fixed on the fixed table 135, and a rotating plate 137 is rotatably connected on the first hinge table 136; both the pivot plate 137 and the hydraulic cylinder 139 are secured to the crane beam assembly 200.
Aiming at the problems that in the prior art, in order to ensure operation safety, the stability of the tire crane is improved, rollover is avoided, supporting legs are generally additionally arranged, but the supporting legs cannot be well used for flexibly adjusting lever balance supporting points to support the hoisting weight according to the movement of the hoisting weight, so that the stability is limited, the stable crane beam can:
when a weight is hoisted, the reinforced support frame 240 is used for supporting the ground, so that the reinforced support frame 240 is further used as a lever supporting point, the stability of the tire crane is improved, and rollover is avoided; meanwhile, the first pneumatic cylinder is started to control the length of the second crane beam arm 220 inserted in the first crane beam arm 210, so that the supporting position of the reinforcing support frame 240 serving as a lever supporting point can be flexibly adjusted, the lever balance supporting point can be flexibly adjusted according to the movement of the lifting weight to support the lifting weight, and the stability is improved; the reinforced support frame 240 is used for supporting the ground, the reinforced support frame 240 is further used as a lever supporting point, the first 248 telescopic adjustment of the hydraulic telescopic rod is started to adjust the supporting position of the reinforced support frame 240 as the lever supporting point along the main body direction of the beam arm 220 of the secondary crane, the supporting position of the reinforced support frame 240 as the lever supporting point is flexibly adjusted, the lever balance supporting point is flexibly adjusted according to the movement of the lifting weight to support the lifting weight, the stability is improved, and the side turning is avoided;
that is, when lifting a heavy object, the reinforcing support frame 240 is used to support the ground, so that the reinforcing support frame 240 is further used as a lever supporting point, the first pneumatic cylinder is used to control the length of the second crane beam arm 220 inserted into the first crane beam arm 210, the first hydraulic telescopic rod 248 is combined to be telescopically adjusted to be along the main body direction of the second crane beam arm 220, the supporting position of the reinforcing support frame 240 is further adjusted, the supporting position of the reinforcing support frame 240 serving as the lever supporting point is flexibly adjusted, the lifting heavy object is well supported by flexibly adjusting the lever balance supporting point according to the movement of the lifting heavy object, the stability is improved, and rollover is avoided.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. A stable crane beam is characterized in that,
comprises a crane beam assembly (200), wherein the crane beam assembly (200) comprises a crane beam and a reinforced support frame (240); the crane beam arm comprises a primary crane beam arm (210), a secondary crane beam arm (220) and a telescopic crane beam arm (230); the secondary crane beam arm (220) is movably inserted into the primary crane beam arm (210), and the length of the secondary crane beam arm (220) inserted into the primary crane beam arm (210) is controlled by a pneumatic cylinder I arranged in the primary crane beam arm (210); the reinforced support frame (240) is additionally arranged on the beam arm (220) of the secondary crane;
the reinforced support frame (240) comprises a first hydraulic telescopic rod (248), the first hydraulic telescopic rod (248) is fixed on the second crane beam arm (220) through a fixing plate (249), the first hydraulic telescopic rod (248) is arranged to be distributed in parallel with the second crane beam arm (220), the first hydraulic telescopic rod (248) is used for telescopic adjustment to the main body direction along the second crane beam arm (220), and the reinforced support frame (240) is adjusted to serve as the support position of the lever support point.
2. A stabilized crane girder according to claim 1, wherein,
the reinforced support frame (240) also comprises a second hydraulic telescopic rod (251), a telescopic support arm (246) and a support single leg (241);
one end of a telescopic supporting arm (246) is fixedly provided with a U-shaped connecting plate (247), the U-shaped connecting plate (247) is rotationally connected to a supporting dragging table (250), the supporting dragging table (250) is fixed at the end of a first hydraulic telescopic rod (248), and the supporting dragging table (250) is attached to a beam arm (220) of the secondary crane; one end of the second hydraulic telescopic rod (251) is hinged on the supporting dragging table (250), and the other end of the second hydraulic telescopic rod is hinged on the U-shaped connecting plate (247);
an angle adjusting disc (245) is fixed at the other end of the telescopic supporting arm (246), the angle adjusting disc (245) is arranged on the longitudinal guide rail (243), a sliding sleeve (244) is connected to the longitudinal guide rail (243) in a sliding manner, and the sliding sleeve (244) is connected to the transverse guide rail (242) in a sliding manner;
the support single leg (241) is provided with two and symmetrically distributed at two ends of the transverse guide rail (242).
3. A stabilized crane girder according to claim 2, wherein,
the telescopic supporting arm (246) is an air pressure telescopic rod I, the angle adjusting disc (245) comprises a motor, and the motor is used for driving the longitudinal guide rail (243), the transverse guide rail (242) and the supporting single leg (241) to rotate and adjust after outputting rotating power;
the transverse guide rail (242) is internally provided with a second pneumatic telescopic rod, one end of the second pneumatic telescopic rod is fixed in the transverse guide rail (242), and the other end of the second pneumatic telescopic rod is fixed on the sliding sleeve (244); the longitudinal guide rail (243) is internally provided with a third pneumatic telescopic rod, one end of the third pneumatic telescopic rod is fixed inside the longitudinal guide rail (243), and the other end of the third pneumatic telescopic rod is fixed on the sliding sleeve (244).
4. A stabilized crane girder according to claim 2, wherein,
the single support leg (241) comprises a third hydraulic telescopic rod (2416), one end of the third hydraulic telescopic rod (2416) is fixedly provided with a supporting leg (2417), the other end of the third hydraulic telescopic rod is rotatably connected with a guide slide disc (2415), a rotary connecting plate (2414) is fixedly arranged on the guide slide disc (2415), the rotary connecting plate (2414) is rotatably connected inside a sliding groove (2412), a fourth hydraulic telescopic rod is arranged inside the sliding groove (2412) and is used for controlling the single support leg (241) to rotate and be accommodated at a position parallel to the transverse guide rail (242);
the chute (2412) is arranged in the guide chute (2413), the guide chute (2413) is arranged on the positioning table (2411), and the positioning table (2411) is fixed at the end of the transverse guide rail (242).
5. A stabilized crane girder according to claim 1, wherein,
the telescopic crane beam arm (230) is movably inserted into the secondary crane beam arm (220), and the length of the telescopic crane beam arm (230) inserted into the secondary crane beam arm (220) is controlled by a pneumatic cylinder II arranged in the secondary crane beam arm (220);
the telescopic crane beam arm (230) is composed of a plurality of sleeves which are inserted and penetrated in a movable mode, and the inserted length of the sleeves is adjusted through three control of a pneumatic cylinder.
6. A stabilized crane girder according to claim 1, wherein,
a winch (120) is additionally arranged on the crane beam arm assembly (200), the winch (120) comprises a winch body (121), the winch body (121) is additionally arranged on the crane beam arm assembly (200), a steel rope (122) is connected to the winch body (121) in a transmission manner, and the steel rope (122) is limited on a guide groove (123), and the guide groove (123) is arranged at the end part of the crane beam arm assembly (200); a hook (124) is fixed at the tail end of the steel rope (122);
the lower end of the guide groove (123) is fixedly provided with a steel rope protection pipe fitting (300) sleeved on the steel rope (122), and the steel rope protection pipe fitting (300) is used for protecting and improving the strength of the steel rope (122); the steel rope protection pipe fitting (300) is telescopic.
7. A stabilized crane girder according to claim 6, wherein,
the steel rope protection pipe fitting (300) is composed of a plurality of unit steel rope protection pipe fittings (310), and the unit steel rope protection pipe fittings (310) are composed of two symmetrically-inserted and buckled protection pipes (320);
the protection pipe (320) comprises a positioning ring (321) and a unit plate (322), wherein the unit plate (322) is provided with a plurality of units and is distributed on the positioning ring (321) in a ring-shaped array.
8. A stabilized crane girder according to claim 7, wherein,
the unit plate (322) comprises a plurality of penetrating plates (323) and a plurality of outer containing plates (324), and the penetrating plates (323) and the outer containing plates (324) are distributed in a cross array;
the insertion plate (323) is movably inserted into a storage cavity (3242) formed in the outer storage plate (324), a guide convex edge (3231) is fixed on the insertion plate (323), and a limit groove (3241) is formed in the storage cavity (3242) in a matched mode with the guide convex edge (3231); the guide convex edge (3231) is connected inside the limit groove (3241) in a sliding way;
the two symmetrically inserted and buckled protection pipes (320) are respectively connected with the unit plates (322) in a sliding way through the guide grooves and the limiting convex edges to finish movable insertion;
the guide groove and the limit groove (3241) are connected with anti-falling safety ropes.
9. A crane, characterized in that the crane comprises a crane body assembly (100), said crane body assembly (100) being provided with a stable crane beam according to any one of the preceding claims 1-8;
the crane body assembly (100) comprises a crane body (140), a rotating base assembly (130) is additionally arranged on the crane body (140), and the rotating base assembly (130) is additionally arranged at the bottom of the crane beam arm assembly (200); a cab (110) is mounted on the swivel base assembly (130).
10. A crane according to claim 9, wherein,
the rotary base assembly (130) comprises a rotary disc (131), two guide rails (133) which are distributed in parallel are additionally arranged on the rotary disc (131), and the guide rails (133) are connected with a guide supporting table (132) in a sliding manner; a second hinging table (138) is additionally arranged on the guide supporting table (132), and a hydraulic cylinder (139) is rotationally connected to the second hinging table (138);
a connecting plate (134) is fixed on the guide supporting table (132), a fixed table (135) is fixed on the connecting plate (134), a first hinge table (136) is fixed on the fixed table (135), and a rotating plate (137) is connected on the first hinge table (136) in a rotating way; the rotating plate (137) and the hydraulic cylinder (139) are both fixed on the crane beam assembly (200).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311269654.XA CN117003142B (en) | 2023-09-28 | 2023-09-28 | Stable crane beam and crane |
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| CN202311269654.XA CN117003142B (en) | 2023-09-28 | 2023-09-28 | Stable crane beam and crane |
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| CN117003142B CN117003142B (en) | 2023-12-29 |
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| CN117902495A (en) * | 2024-03-18 | 2024-04-19 | 河南斯玛特起重机有限公司 | Counterweight adjusting mechanism for crane |
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| CN118145512A (en) * | 2024-05-11 | 2024-06-07 | 新乡县建城建设工程有限公司 | Crane for municipal engineering construction |
| CN118164378A (en) * | 2024-05-15 | 2024-06-11 | 山东万泽丰海洋开发集团有限公司 | Fishing net lifting equipment |
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| CN117003142B (en) | 2023-12-29 |
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