CN116835440B - Folding permanent magnet driving small crane - Google Patents
Folding permanent magnet driving small crane Download PDFInfo
- Publication number
- CN116835440B CN116835440B CN202311126754.7A CN202311126754A CN116835440B CN 116835440 B CN116835440 B CN 116835440B CN 202311126754 A CN202311126754 A CN 202311126754A CN 116835440 B CN116835440 B CN 116835440B
- Authority
- CN
- China
- Prior art keywords
- rod
- middle block
- telescopic cylinder
- permanent magnet
- hinge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
- B66C19/02—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries collapsible
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The folding permanent magnet driven small crane comprises a main beam, a hanging beam and two supporting legs, wherein a base beam is arranged at the bottom end of each supporting leg, an inclined stay rod is arranged between the base beam and each supporting leg, and travelling wheels are arranged at two ends of each base beam; the main beam is formed by a plurality of beam rod units; one side of the corresponding end of each two adjacent beam rod units is provided with a first hinge, and a first mortise lock mechanism is arranged between the two adjacent beam rod units; the base beam consists of a middle block and two bottom rod units, and a second hinge is arranged between the middle block and the bottom rod units; the outer end of the bottom rod unit is detachably connected with the corresponding end of the diagonal brace; the lower surface of the middle block is provided with a universal wheel, and the center of the upper surface of the middle block is provided with a rotary slot; the landing leg is arranged as a telescopic cylinder, the upper end of a cylinder body of the telescopic cylinder is fixed with the main beam, and the lower end of the cylinder body of the telescopic cylinder is hinged with the corresponding end of the diagonal brace; the telescopic rod end of the telescopic cylinder can be correspondingly and rotatably inserted with the rotary slot; the small crane ensures stable hoisting structure and is convenient for folding and transferring.
Description
Technical Field
The invention relates to the field of hoisting equipment, in particular to a folding permanent magnet driving small crane.
Background
Most of the existing small-sized cranes are portal cranes, namely portal cranes or gantry cranes, and mainly comprise a hanging beam crane, a main beam assembly, a bracket assembly, a supporting leg assembly, a cart travelling assembly, electrical equipment and the like, so that the installation and the transfer of construction sites are relatively convenient, and the economy is good; the size of the frame of the small gantry crane is different according to factors such as lifting weight, the gantry frame which is generally lifted by about one ton is lifted, the length of the beam is 2.5 meters, and the height of the supporting leg is 3 meters, but even so, the occupied space is relatively large, and the loading and the moving are not facilitated;
the Chinese patent with the publication number of CN105236276A discloses a lifting and folding gantry crane device, which can set a beam as two parts hinged in the center and rotate on a vertical surface, so that two supporting legs are close to each other to realize folding in the length direction, and lifting supporting legs can be arranged to realize folding in the height direction, thereby completing folding of the whole machine to reduce space occupation; however, the defects are four: firstly, the folding direction of the cross beam is consistent with the lifting stress direction, and the cross beam can only be stressed by virtue of the additionally arranged connecting plate after being unfolded, so that the assembly, disassembly and folding are inconvenient, and the bearing stress performance of the cross beam is affected; secondly, a large span is needed for the general supporting leg base to prevent the gantry crane from toppling over, and the existing patent cannot fold in the width direction of the whole machine, so that the occupied space after folding is still not small; thirdly, after the sleeved supporting legs are stretched and unfolded, the heights are fixed by inserting bolts into positioning jacks on the side surfaces, namely, in the hoisting use process, the whole hoisting weight, the hoisting hoist weight, the cross beam and other frame weights are borne by the bolts in a manner that the bolts overcome shearing force, so that the actual hoisting weight is limited; fourth, the casters of the prior art, although being capable of moving the frame after folding, are only capable of moving linearly, and lack of flexibility in movement, if they are replaced by universal wheels directly, but lack of stability and safety in lifting and using.
Disclosure of Invention
In order to overcome the defects in the background art and solve the existing technical problems, the invention discloses a folding permanent magnet driven small crane, which ensures that a hoisting structure is stable, is convenient for folding and transferring and reduces space occupation.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the utility model provides a folding permanent magnet drive small-size crane, includes the girder, girder lower surface is fixed with the hanging beam that is used for lifting by crane driving installation to remove, the both ends symmetry of girder is fixed with two landing legs, the bottom of landing leg is equipped with the base roof beam of perpendicular to girder and landing leg, be equipped with the diagonal brace between the upper surface both ends of base roof beam and corresponding landing leg, the walking wheel that can walk along base roof beam axial is all installed to the lower surface both ends of base roof beam; the main beam is formed by coaxially and correspondingly forming a plurality of beam rod units, and the hanging beam is also divided into a plurality of hanging rail units by taking the corresponding surfaces of two adjacent beam rod units as dividing references; a first hinge with a vertical hinge shaft is arranged on one side of the corresponding ends of the two adjacent beam rod units, and the first hinges are arranged on two sides of the main beam in a staggered manner, so that the main beam can be folded into a plurality of beam rod units in a side-by-side manner; a first mortise lock mechanism is arranged between two adjacent beam rod units so as to be positioned radially when the two adjacent beam rod units are unfolded correspondingly; the base beam consists of a middle block and two bottom rod units symmetrically arranged at two ends of the middle block, and a second hinge with a vertical hinge shaft is arranged between two ends of the same side of the middle block and the inner ends of the corresponding bottom rod units so that the two bottom rod units can be rotated and folded to be in a side-by-side shape; the upper surface of the outer end of the bottom rod unit is detachably connected with the corresponding end of the diagonal brace, and the travelling wheel is arranged on the lower surface of the outer end of the bottom rod unit; the universal wheels are arranged on the lower surface of the middle block, and a rotary slot is arranged in the center of the upper surface of the middle block; the supporting legs are vertically downward telescopic cylinders, the upper ends of the cylinder bodies of the telescopic cylinders are fixedly connected with the corresponding ends of the main beams, and the side walls of the lower ends of the cylinder bodies of the telescopic cylinders are correspondingly hinged with the corresponding ends of the diagonal braces; the telescopic rod end of the telescopic cylinder can be correspondingly and rotatably connected with the rotary slot.
Further, the beam unit is provided with four or five.
Further, the beam rod unit is set to hollow square rod, the first mortise lock mechanism contains the straight line and inserts the axle, the upper portion axle body of straight line is fixed with the plectrum, the equal sliding fit cover of both ends axle body of straight line is equipped with first guide pin bushing, the outer wall of first guide pin bushing and the inner wall fixed connection of beam rod unit, the roof of this beam rod unit is equipped with the adaptation plectrum and inserts and follow the rectangular hole of beam rod unit axial displacement, and the adjacent beam rod unit inner wall of this beam rod unit is fixed with the second guide pin bushing that the straight line of adaptation was inserted the axle and is pegged graft.
Further, the outer end upper surface of sill bar unit is fixed with first hinge ear seat, the both sides wall symmetry that the telescopic cylinder body lower extreme corresponds the sill beam both ends is fixed with two second hinge ear seats, the both sides wall symmetry that the telescopic cylinder body upper end corresponds the sill beam both ends is fixed with two third hinge ear seats, the one end and the second hinge ear seat of diagonal brace correspond articulated, the other end of diagonal brace can be with first hinge ear seat or third hinge ear seat correspondence detachable articulated.
Further, one side of the middle block is provided with a jack penetrating through the rotary slot, a bolt is arranged in the jack, and the outer wall of the telescopic rod end of the telescopic cylinder is provided with two positioning holes which are crossed and are matched with the bolt.
Further, a second mortise lock mechanism capable of being positioned radially is arranged between the bottom rod unit and the middle block.
Further, the driving device of the hoisting crane is set to be a permanent magnet driving motor.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the folding permanent magnet driven small crane disclosed by the invention has the advantages that after the whole girder is hinged in sections, the whole girder can be rotated and folded in the horizontal plane through the hinge, so that after the girder is unfolded, the hinge can bear the vertical force of hoisting, and the quick-inserting connection of the first mortise lock mechanism is further adopted, so that the convenience of disassembly and folding is realized, and the structural strength of the girder after connection is far greater than that of the existing folding crane;
according to the folding permanent magnet driven small crane disclosed by the invention, the base beam can be hinged and folded in a segmented manner, so that the whole frame is folded and contracted in the width direction, and the space occupation can be further reduced;
the folding permanent magnet driven small crane disclosed by the invention has the advantages that the traditional supporting leg is replaced by the telescopic cylinder, an externally hung manual lifting mechanism is not needed, the structure is simple, the automatic lifting and folding are convenient, and the time and the labor are saved; more importantly, after the supporting legs are unfolded and connected with the diagonal braces, the weighing force of each supporting leg can be transmitted to the base beam through more diagonal braces, so that the load-bearing effect is better compared with that of the existing folding crane;
according to the folding permanent magnet driven small crane disclosed by the invention, the universal wheels are arranged between the two travelling wheels, so that more weighing force can be shared under the condition that the hoisting stability and the safety are not affected, the rotation of the base beam can be facilitated, and the whole crane can be flexibly moved after being folded;
in conclusion, the portal frame is improved on the basis of the existing portal frame, and the portal frame is simple in structure and low in manufacturing cost, so that the structural strength and the hoisting stability of the existing frame body structure are maintained, and the portal frame is convenient to maintain; the folding design has small influence on the structural strength of the frame body, the frame body is always in a stable supporting state in the folding and unfolding processes, and can be operated only by one person with the aid of the telescopic cylinder, and after the folding and shrinking space is occupied, the universal wheels are utilized to facilitate moving and transferring.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the first mortise lock mechanism in FIG. 1 in a partially sectioned state;
FIG. 3 is a schematic view of the first mortise lock mechanism in an unlocked state;
FIG. 4 is a schematic top view of the main beam deployed;
FIG. 5 is a schematic side elevational view of FIG. 1;
FIG. 6 is a schematic cross-sectional structural connection of the intermediate block;
FIG. 7 is a schematic side elevational view of the first step folded state of the present invention;
FIG. 8 is a schematic side elevational view of the second stage of the present invention in a folded configuration;
fig. 9 is a schematic top view of the main beam folded.
In the figure: 1. a beam-bar unit; 2. a first hinge; 3. a hanger rail unit; 4. a telescopic cylinder; 5. a diagonal brace; 6. a bottom bar unit; 7. a walking wheel; 8. a third hinge ear seat; 9. the second hinge lug seat; 10. the first hinge lug seat; 11. a middle block; 12. a second hinge; 13. a universal wheel; 14. positioning holes; 15. a jack; 16. a straight line inserting shaft; 17. a pulling piece; 18. a slit hole; 19. the first guide sleeve; 20. a second guide sleeve; 21. a bolt.
Description of the embodiments
In the description, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., the drawings merely correspond to the drawings of the present invention, and in order to facilitate description of the present invention, it is not indicated or implied that the device or element referred to must have a specific azimuth:
the folding permanent magnet driven small crane comprises a main beam, wherein a hanging beam for installing and moving a crane is fixed on the lower surface of the main beam, and the hanging beam can bear the movement and positioning of the crane; according to the requirement, the driving device of the hoisting crane is set as a permanent magnet driving motor, and has the advantages of high starting torque, quick response and accurate control, good reliability and long service life; two supporting legs are symmetrically fixed at two ends of the main beam, a base beam perpendicular to the main beam and the supporting legs is arranged at the bottom ends of the supporting legs, diagonal braces 5 are arranged between two ends of the upper surface of the base beam and the corresponding supporting legs, and travelling wheels 7 capable of travelling along the axial direction of the base beam are arranged at two ends of the lower surface of the base beam;
the main beam is formed by coaxially and correspondingly forming a plurality of beam-rod units 1, and the beam-rod units 1 are generally provided with four or five, so that the folded main beam is approximately square and has smaller volume; the lifting beam is divided into a plurality of lifting rail units 3 by taking the corresponding surfaces of two adjacent beam rod units 1 as dividing references, so that the lifting rail units 3 can be folded along with the beam rod units 1; the first hinges 2 with vertical hinge shafts are arranged on one sides of the corresponding ends of the two adjacent beam rod units 1, and the first hinges 2 are arranged on two sides of the main beam in a staggered mode, so that the main beam can be folded into the beam rod units 1 in a side-by-side mode, the first hinges 2 with vertical hinge shafts can enable the rotation folding direction of the beam rod units 1 to be different from the lifting bearing direction of the beam rod units 1, and structural stability is guaranteed; a first mortise lock mechanism is arranged between two adjacent beam rod units 1 so as to be positioned radially when the two adjacent beam rod units 1 are unfolded correspondingly, and the main beam is mainly subjected to bearing force in the vertical direction when being lifted, and the stress of the first hinge 2 can be relieved by arranging the first mortise lock mechanism;
according to the requirement, the beam rod unit 1 is set to be a hollow square rod, the first mortise lock mechanism comprises a linear inserting shaft 16, a poking plate 17 is fixed on the upper shaft body of the linear inserting shaft 16, first guide sleeves 19 are sleeved on the shaft bodies at two ends of the linear inserting shaft 16 in a sliding fit manner, the outer wall of each first guide sleeve 19 is fixedly connected with the inner wall of the beam rod unit 1, a strip hole 18 which is used for inserting the poking plate 17 and axially moving along the beam rod unit 1 is formed in the top wall of the beam rod unit 1, and a second guide sleeve 20 which is used for inserting the linear inserting shaft 16 is fixed on the inner wall of the beam rod unit 1 adjacent to the beam rod unit 1; the first guide sleeve 19 and the second guide sleeve 20 limit the linear insertion shaft 16, so that the linear insertion shaft 16 can move axially conveniently, and meanwhile, the structural strength of the beam rod unit 1 can be increased; when the main beam is unfolded, the poking plate 17 is poked, the linear inserting shafts 16 of the beam rod units 1 are inserted into the second guide sleeves 20 of the adjacent beam rod units 1, and the linear inserting shafts 16 are utilized to radially position the two adjacent beam rod units 1 and bear hoisting gravity mainly by virtue of the linear inserting shafts 16; when the main beam needs to be folded, the linear inserting shaft 16 is withdrawn from the second guide sleeve 20;
the base beam consists of a middle block 11 and two bottom rod units 6 symmetrically arranged at two ends of the middle block 11, and a second hinge 12 with a vertical hinge shaft is arranged between two ends of the same side of the middle block 11 and the inner ends of the corresponding bottom rod units 6 so that the two bottom rod units 6 can be rotated and folded to be in a side-by-side state; according to the requirement, a second mortise lock mechanism capable of being positioned radially is arranged between the bottom rod unit 6 and the middle block 11, and similar to the first mortise lock mechanism in structure, an inserting shaft is arranged in the bottom rod unit 6, and the bearing capacity of the second hinge 12 is divided by poking and inserting the inserting shaft into a slot corresponding to the end face of the middle block 11; the upper surface of the outer end of the bottom rod unit 6 is detachably connected with the corresponding end of the diagonal brace 5, so that the connection between the diagonal brace 5 is conveniently disconnected when the bottom rod unit 6 is folded, and the travelling wheel 7 is arranged on the lower surface of the outer end of the bottom rod unit 6; the universal wheels 13 are arranged on the lower surface of the middle block 11, and the universal wheels 13 have the function of bearing and supporting, and can facilitate pushing and steering to move and transfer after the whole frame is folded; the center of the upper surface of the middle block 11 is provided with a rotary slot;
the landing leg is arranged as a vertical downward telescopic cylinder 4, such as an electric telescopic cylinder, the upper end of the cylinder body of the telescopic cylinder 4 is fixedly connected with the corresponding end of the main beam, and the side wall of the lower end of the cylinder body of the telescopic cylinder 4 is correspondingly hinged with the corresponding end of the diagonal brace 5; the telescopic rod end of the telescopic cylinder 4 can be correspondingly and rotatably inserted with the rotary slot, namely, when the telescopic cylinder is folded, the middle block 11 can rotate to adjust the position, so that the main beam can be folded in place; in addition, one side of the middle block 11 is provided with a jack 15 penetrating through the rotary slot, a plug pin 21 is arranged in the jack 15, the outer wall of the telescopic rod end of the telescopic cylinder 4 is provided with two positioning holes 14 which are crossed and are matched with the plug pin 21, in order to ensure that the occupied space is minimum after the whole frame is folded, the middle block 11 has an angle change of 90 degrees after the frame is unfolded and folded, and the middle block 11 is connected with the jack 15 of the rotary slot through the plug pin 21 corresponding to different positioning holes 14, so that the stability of the connection between the middle block 11 and the telescopic rod end of the telescopic cylinder 4 under two angles can be ensured;
according to the requirement, a first hinge lug seat 10 is fixed on the upper surface of the outer end of the bottom rod unit 6, two second hinge lug seats 9 are symmetrically fixed on two side walls of the lower end of the cylinder body of the telescopic cylinder 4 corresponding to two ends of the bottom seat beam, two third hinge lug seats 8 are symmetrically fixed on two side walls of the upper end of the cylinder body of the telescopic cylinder 4 corresponding to two ends of the bottom seat beam, one end of the inclined strut 5 is correspondingly hinged with the second hinge lug seats 9, the other end of the inclined strut 5 can be correspondingly and detachably hinged with the first hinge lug seats 8 or the third hinge lug seats 10, in particular, in the unfolding state of the whole frame, the inclined strut 5 is correspondingly hinged with the first hinge lug seats 10, and in the folding state, the inclined strut 5 swings randomly; the detachable hinging mode is realized by adopting a traditional mode that a bolt rod replaces a hinging shaft and removing the bolt rod by unscrewing a nut; and when the bolt rod or the hinge shaft is rotationally matched with the hinge lug seat, the end part of the inclined support rod 5 can always be in contact with the edge of the corresponding hinge lug seat, so that the stress of the inclined support rod 5 can be directly transferred to the hinge lug seat, and the stress of the bolt rod or the hinge shaft is shared.
When the folding permanent magnet driven small crane is unfolded, as shown in fig. 1, the main beam and the base beam are unfolded completely, the first mortise lock mechanism is locked in place, and the diagonal brace 5 and the first hinge lug seat 10 are hinged in place correspondingly; when a crane is required to lift a heavy object, as shown in fig. 5, the bolt 21 can be pulled out, and the telescopic rod end of the telescopic cylinder 4 is withdrawn from the rotary slot of the middle block 11, namely, the telescopic cylinder 4 is not directly used for providing supporting force, but the connected inclined strut 5 is used for providing supporting force, so that the telescopic cylinder 4 is protected, and only the telescopic cylinder 4 is used as an auxiliary tool for telescopic folding; when the whole frame is folded, the whole frame is generally divided into two steps, firstly, as shown in fig. 7, a telescopic rod end of a telescopic cylinder 4 is inserted into a rotary slot, a bolt 21 is inserted for positioning, a main beam is supported by the telescopic cylinder 4, then an inclined strut 5 is detached from a first hinge lug seat 10, the inclined strut 5 is rotated, the corresponding end of the inclined strut 5 is connected with a third hinge lug seat 8, the telescopic cylinder 4 is controlled to shrink, the whole supporting leg is lowered to the lowest, and then the two bottom rod units 6 are rotated by pulling out the bolt 21 to fold and side by side, so that the telescopic cylinder 4 and the bottom rod units 6 are L-shaped; and in the second step, as shown in fig. 8, the first mortise lock mechanism is unlocked, and then the main beam is folded, so that a plurality of beam rod units 1 are in a shape as shown in fig. 9 in a top view, in the process, the middle block 11 has an indexing of 90 degrees relative to the telescopic cylinder 4, and after the indexing, the bolts 21 are inserted for positioning, so that the folding process can be completed.
The invention has not been described in detail in the prior art, and it is apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the above-described embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. The utility model provides a folding permanent magnet drive small-size crane, contains the girder, girder lower surface fixation has the hanging beam that is used for lifting by crane driving installation to remove, the both ends symmetry of girder is fixed with two landing legs, the bottom of landing leg is equipped with the base roof beam of perpendicular to girder and landing leg, be equipped with diagonal brace (5) between the upper surface both ends of base roof beam and the corresponding landing leg, walking wheel (7) that can follow the axial walking of base roof beam are all installed at the lower surface both ends of base roof beam, characterized by:
the main beam is formed by coaxially and correspondingly forming a plurality of beam rod units (1), and the hanging beam is also divided into a plurality of hanging rail units (3) by taking the corresponding surfaces of two adjacent beam rod units (1) as dividing references; a first hinge (2) with a vertical hinge shaft is arranged on one side of the corresponding ends of the two adjacent beam rod units (1), and the first hinges (2) are arranged at two sides of the main beam in a staggered manner, so that the main beam can be folded into a plurality of beam rod units (1) in a side-by-side manner; a first mortise lock mechanism is arranged between two adjacent beam-rod units (1) so as to be positioned radially when the two adjacent beam-rod units (1) are unfolded correspondingly;
the base beam consists of a middle block (11) and two bottom rod units (6) symmetrically arranged at two ends of the middle block (11), and a second hinge (12) with a vertical hinge shaft is arranged between two ends of the same side of the middle block (11) and the inner ends of the corresponding bottom rod units (6) so that the two bottom rod units (6) can be rotated and folded to be in a side-by-side shape; the upper surface of the outer end of the bottom rod unit (6) is detachably connected with the corresponding end of the diagonal brace (5), and the travelling wheel (7) is arranged on the lower surface of the outer end of the bottom rod unit (6); the universal wheels (13) are arranged on the lower surface of the middle block (11), and a rotary slot is formed in the center of the upper surface of the middle block (11);
the landing leg is arranged as a vertical downward telescopic cylinder (4), the upper end of the cylinder body of the telescopic cylinder (4) is fixedly connected with the corresponding end of the main beam, and the side wall of the lower end of the cylinder body of the telescopic cylinder (4) is correspondingly hinged with the corresponding end of the inclined stay bar (5); the telescopic rod end of the telescopic cylinder (4) can be correspondingly and rotatably inserted with the rotary slot.
2. The folding permanent magnet driven small crane of claim 1, wherein: the beam-rod unit (1) is provided with four or five.
3. The folding permanent magnet driven small crane of claim 1, wherein: the beam rod unit (1) is arranged to be a hollow square rod, the first mortise lock mechanism comprises a linear inserting shaft (16), a poking plate (17) is fixed on the shaft body at the upper part of the linear inserting shaft (16), first guide sleeves (19) are sleeved on the shaft bodies at the two ends of the linear inserting shaft (16) in a sliding fit mode, the outer wall of the first guide sleeves (19) is fixedly connected with the inner wall of the beam rod unit (1), the top wall of the beam rod unit (1) is provided with a strip hole (18) for inserting the poking plate (17) and axially moving along the beam rod unit (1), and second guide sleeves (20) for inserting the poking plate (16) in a matching mode are fixed on the inner walls of adjacent beam rod units (1) of the beam rod unit (1).
4. The folding permanent magnet driven small crane of claim 1, wherein: the outer end upper surface of sill bar unit (6) is fixed with first hinge ear seat (10), telescopic cylinder (4) cylinder body lower extreme corresponds the both sides wall symmetry at sill beam both ends and is fixed with two second hinge ear seats (9), telescopic cylinder (4) cylinder body upper end corresponds the both sides wall symmetry at sill beam both ends and is fixed with two third hinge ear seats (8), the one end and the second hinge ear seat (9) of diagonal brace (5) correspond articulated, the other end of diagonal brace (5) can be with first hinge ear seat (8) or third hinge ear seat (10) correspondence detachable articulated.
5. The folding permanent magnet driven small crane of claim 1, wherein: one side of the middle block (11) is provided with a jack (15) penetrating through the rotary slot, a bolt (21) is arranged in the jack (15), and the outer wall of the telescopic rod end of the telescopic cylinder (4) is provided with two positioning holes (14) which are crossed and are matched with the bolt (21).
6. The folding permanent magnet driven small crane of claim 1, wherein: a second mortise lock mechanism capable of being positioned radially is arranged between the bottom rod unit (6) and the middle block (11).
7. The folding permanent magnet driven small crane of claim 1, wherein: the driving device of the hoisting crane is set to be a permanent magnet driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311126754.7A CN116835440B (en) | 2023-09-04 | 2023-09-04 | Folding permanent magnet driving small crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311126754.7A CN116835440B (en) | 2023-09-04 | 2023-09-04 | Folding permanent magnet driving small crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116835440A CN116835440A (en) | 2023-10-03 |
| CN116835440B true CN116835440B (en) | 2023-12-05 |
Family
ID=88162093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311126754.7A Active CN116835440B (en) | 2023-09-04 | 2023-09-04 | Folding permanent magnet driving small crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116835440B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5675386A (en) * | 1979-11-24 | 1981-06-22 | Saneigumi Kk | Bridge type crane for heavy weight substance |
| DE20300856U1 (en) * | 2003-01-21 | 2003-05-08 | Fleischer Josef | Lightweight trestle crane has folding legs and upright supports |
| CN201647943U (en) * | 2010-03-19 | 2010-11-24 | 中国人民解放军军事交通学院 | Foldable five-section suspension arm device for containers |
| CN103422439A (en) * | 2013-07-25 | 2013-12-04 | 河北工业大学 | Lower guide beam bridge girder erection machine and method for complete machine passing through tunnel |
| CN105236276A (en) * | 2015-10-20 | 2016-01-13 | 常州工学院 | Foldable gantry crane capable of ascending and descending |
| CN110668318A (en) * | 2019-10-12 | 2020-01-10 | 四川大学 | Assembled indoor GIS (gas insulated switchgear) transportation and installation equipment and use method thereof |
| CN111232851A (en) * | 2020-03-13 | 2020-06-05 | 湖南生物机电职业技术学院 | Folding crane |
| CN210914997U (en) * | 2019-11-26 | 2020-07-03 | 河南省英特格瑞自动化设备有限公司 | Folding type gantry crane |
| CN212953981U (en) * | 2020-08-11 | 2021-04-13 | 徐州万邦金桥制药有限公司 | Detachable portal frame |
| CN213445824U (en) * | 2020-10-21 | 2021-06-15 | 卓旺建 | Construction lifting device for road and bridge |
| CN214780356U (en) * | 2021-05-06 | 2021-11-19 | 河南双力桥梁机械集团有限公司 | Easy-to-load and unload gantry crane |
| CN214879616U (en) * | 2021-09-23 | 2021-11-26 | 纽科伦（新乡）起重机有限公司 | Folding crane convenient to transition |
-
2023
- 2023-09-04 CN CN202311126754.7A patent/CN116835440B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5675386A (en) * | 1979-11-24 | 1981-06-22 | Saneigumi Kk | Bridge type crane for heavy weight substance |
| DE20300856U1 (en) * | 2003-01-21 | 2003-05-08 | Fleischer Josef | Lightweight trestle crane has folding legs and upright supports |
| CN201647943U (en) * | 2010-03-19 | 2010-11-24 | 中国人民解放军军事交通学院 | Foldable five-section suspension arm device for containers |
| CN103422439A (en) * | 2013-07-25 | 2013-12-04 | 河北工业大学 | Lower guide beam bridge girder erection machine and method for complete machine passing through tunnel |
| CN105236276A (en) * | 2015-10-20 | 2016-01-13 | 常州工学院 | Foldable gantry crane capable of ascending and descending |
| CN110668318A (en) * | 2019-10-12 | 2020-01-10 | 四川大学 | Assembled indoor GIS (gas insulated switchgear) transportation and installation equipment and use method thereof |
| CN210914997U (en) * | 2019-11-26 | 2020-07-03 | 河南省英特格瑞自动化设备有限公司 | Folding type gantry crane |
| CN111232851A (en) * | 2020-03-13 | 2020-06-05 | 湖南生物机电职业技术学院 | Folding crane |
| CN212953981U (en) * | 2020-08-11 | 2021-04-13 | 徐州万邦金桥制药有限公司 | Detachable portal frame |
| CN213445824U (en) * | 2020-10-21 | 2021-06-15 | 卓旺建 | Construction lifting device for road and bridge |
| CN214780356U (en) * | 2021-05-06 | 2021-11-19 | 河南双力桥梁机械集团有限公司 | Easy-to-load and unload gantry crane |
| CN214879616U (en) * | 2021-09-23 | 2021-11-26 | 纽科伦（新乡）起重机有限公司 | Folding crane convenient to transition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116835440A (en) | 2023-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2055362A1 (en) | Upright support structure for a fairground attraction, in particular a ferris wheel | |
| US3836012A (en) | Removable outrigger assembly with rotatable jack | |
| CN116835440B (en) | Folding permanent magnet driving small crane | |
| CN111172858B (en) | Mechanical bridge erecting mechanism, mechanical bridge erecting vehicle and method | |
| CN210419034U (en) | GIS metal can body assembly and disassembly tools | |
| CN105600686A (en) | Portable mobile crane boom | |
| CN104709296B (en) | A kind of telescopic folding job platform | |
| CN214831941U (en) | Front swing frame mechanism for horizontally pushing and erecting mechanical bridge | |
| CN110562215B (en) | Loading and unloading device is from elevating system's bearing structure | |
| CN113753797A (en) | Jacking device for assembling and disassembling large four-leg portal crane and assembling and disassembling operation method | |
| CN2433137Y (en) | Movable folding lifter for repairing vehicle | |
| CN204488793U (en) | A kind of telescopic folding job platform | |
| CN217498452U (en) | Equipment hoisting device in limited space | |
| CN219009819U (en) | Lifting device with stabilizing mechanism | |
| CN201326381Y (en) | Top docking type oil rig derrick | |
| CN220056202U (en) | Material lifting machine with safeguard function | |
| CN220267579U (en) | High-voltage wire road maintenance ladder | |
| CN219325223U (en) | Turnover operation device and turnover operation system | |
| CN109941907A (en) | A kind of hydraulic foldable bracket being used to support derrick | |
| CN114233201B (en) | Pull type base device | |
| CN211496863U (en) | Household lifter | |
| CN215626534U (en) | Jacking device for assembling and disassembling large four-leg portal crane | |
| CN219279185U (en) | Safety device convenient to elevator installation | |
| CN220265189U (en) | Movable hydraulic lifting platform | |
| CN215479491U (en) | Electric jacking vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |