CN107956959B - Auxiliary supporting leg positioning device for large-scale building machinery - Google Patents
Auxiliary supporting leg positioning device for large-scale building machinery Download PDFInfo
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- CN107956959B CN107956959B CN201711133905.6A CN201711133905A CN107956959B CN 107956959 B CN107956959 B CN 107956959B CN 201711133905 A CN201711133905 A CN 201711133905A CN 107956959 B CN107956959 B CN 107956959B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
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Abstract
The invention discloses an auxiliary supporting leg positioning device for large-scale construction machinery, which comprises a mounting plate, supporting legs, a driving motor, a rotating shaft and telescopic legs, wherein a first through hole is vertically formed in the center of the mounting plate, a second through hole is vertically formed in the top of the center of each supporting leg, a containing hole is vertically formed in the bottom of the center of each supporting leg, a shaft connecting mechanism is arranged at the bottom of each rotating shaft, a screw rod is arranged at the bottom of each shaft connecting mechanism, supporting legs are arranged at the bottoms of the telescopic legs, first sliding grooves are axially symmetrically formed in the inner walls of the containing holes, and first sliding blocks are. According to the invention, the telescopic legs are changed into electric telescopic legs, so that heat generated by friction between the telescopic shaft and the telescopic cylinder can be avoided, the shaft connecting mechanism can protect the shaft according to the prestress of the jacking spring, the damage of the motor caused by overlarge stress is avoided, the traditional support leg can be realized only by additionally arranging a pressure sensor at the bottom, the cost is greatly saved, and the telescopic effect can be realized by the anti-skidding teeth at the bottom of the support leg, so that the safety and the high efficiency are realized.
Description
Technical Field
The invention relates to a supporting leg, in particular to an auxiliary supporting leg positioning device for large-scale building machinery.
Background
Some large-scale construction machinery is designed to be movable in order to facilitate carrying and use, the large-scale construction machinery is positioned after arriving at a construction site, a positioning supporting leg is not separated in the positioning process, the supporting leg is tightly propped against the ground through stretching, so that the machinery is stably positioned, but most of stretching structures used by the conventional supporting leg are air pressure or oil pressure, the oil cylinder and a stretching rod are subjected to friction overheating after being used for a long time, the air cylinder or the oil cylinder is greatly damaged, the stretching of the air cylinder or the oil cylinder is often controlled manually and directly, when the supporting leg is tightly propped against the ground, the air cylinder or the oil cylinder is difficult to stop, if the stretching of the air cylinder or the oil cylinder is too short, the positioning is not firm, if the stretching is too long, the stretching rod is stressed too much, and is easy to damage, simultaneously through observing difficult discovery, current stabilizer blade bottom often all is equipped with anti-skidding tooth, but these anti-skidding teeth often all are with stabilizer blade integrated into one piece, when the landing leg does not use, the anti-skidding tooth exposes and not only receives the damage outward easily, also has probably to cause the injury to the staff moreover.
Disclosure of Invention
The invention aims to provide an auxiliary supporting leg positioning device for large-scale construction machinery, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a large-scale construction machinery auxiliary supporting leg positioning device comprises a mounting plate, wherein a supporting leg is mounted at the center of the bottom of the mounting plate, a driving motor is mounted at the center of the top of the mounting plate, the driving motor is a positive and negative motor, a rotating shaft is connected with the center of the bottom of the driving motor, a first through hole is vertically formed in the center of the mounting plate, a second through hole is vertically formed in the top of the center of the supporting leg, the first through hole and the second through hole are arranged in a collinear manner and are communicated with each other, a containing hole is vertically formed in the bottom of the center of the supporting leg, the bottom of the rotating shaft sequentially penetrates through the first through hole and the second through hole and is arranged in the containing hole, a shaft connecting mechanism is arranged at the bottom of the rotating shaft, a screw rod is arranged at the bottom of the shaft connecting mechanism, the, the rotating shaft is rotatably connected with the mounting groove through a fixed bearing, a plurality of blind holes are uniformly formed in the inner wall of the mounting groove, a jacking spring is arranged in each blind hole, one end of each jacking spring tightly abuts against the bottom of each blind hole, a connecting plate is arranged at the other end of each jacking spring, one end of each connecting plate is connected with the corresponding jacking spring, a steel ball is arranged at the other end of each connecting plate, a plurality of arc-shaped grooves are uniformly arranged on the outer wall of the bottom of the rotating shaft, the arc-shaped grooves correspond to the blind holes one by one, one end of the steel ball is tightly propped against the inner part of the arc-shaped groove, the bottom cooperation of screw rod is installed in the screwed hole, and the screw hole is seted up at the top of flexible leg, flexible leg is located and is accomodate downtheholely, and flexible leg's bottom is equipped with the stabilizer blade, and the stabilizer blade is located and is accomodate the hole outside, accomodates downthehole wall axial symmetry and has seted up first spout, and first spout parallels with flexible leg, slides in the first spout and is equipped with first slider, and the one end fixed mounting of first slider is on the outer wall of flexible leg.
As a further scheme of the invention: the rotating shaft is rotatably connected with the top of the second through hole through a first bearing.
As a still further scheme of the invention: the bottom of the supporting leg is also provided with a cushion pad.
As a still further scheme of the invention: the inner wall of the blind hole is axially symmetrically provided with a second sliding groove, a second sliding block is arranged in the second sliding groove in a sliding mode, and one end of the second sliding block is fixedly installed on the connecting plate.
As a still further scheme of the invention: the stabilizer blade includes first bracer, and the inside of first bracer is equipped with the cavity, and the cavity level sets up, be equipped with the diaphragm in the cavity, the bottom of diaphragm evenly is equipped with a plurality of top, and a plurality of third through-holes have evenly been seted up to the bottom of first bracer, and the top and the cavity of third through-hole are linked together, and top passes the third through-hole setting, lie in the diaphragm top in the cavity and be equipped with the driving shaft, and the cavity setting is worn out at the both ends of driving shaft, and the driving shaft passes through the second bearing and is connected with first bracer, evenly is equipped with a plurality of eccentric wheels on the driving shaft, and the diaphragm top is equipped with a plurality of rolling grooves, and the eccentric wheel is corresponding with the rolling groove, and a plurality of.
As a still further scheme of the invention: and a wear-resistant pad is arranged in the rolling groove.
As a still further scheme of the invention: the vertical groove and the third through hole are arranged in a crossed mode.
As a still further scheme of the invention: and a third sliding groove is symmetrically formed in the side part of the inner wall of the cavity, a third sliding block is arranged in the third sliding groove in a sliding manner, and one end of the third sliding block is fixedly arranged on the side part of the transverse plate.
As a still further scheme of the invention: a second supporting block is fixedly mounted at the top of the cavity, the driving shaft penetrates through the second supporting block, and adjusting handles are mounted at two ends of the driving shaft.
As a still further scheme of the invention: a locking mechanism is installed at the joint of the driving shaft and the side wall of the first supporting block, and an anti-slip pad is arranged at the bottom of the first supporting block.
Compared with the prior art, the invention has the beneficial effects that: the traditional telescopic legs driven by hydraulic pressure or oil pressure are changed into electric telescopic legs, so that heat generated by friction between the telescopic shafts and the telescopic cylinders can be avoided, when the support legs are tightly pressed against the ground, the shaft connecting mechanism can protect the rotary shafts according to the prestress of the tightening springs, damage to a motor due to overlarge stress is avoided, the traditional support legs can be realized only by additionally arranging a pressure sensor at the bottom, the cost is greatly saved, the telescopic effect can be realized by the anti-skidding teeth at the bottom of the support legs, the damage and accidental injury to workers when the support legs are not used are avoided, and the device is safe and efficient.
Drawings
FIG. 1 is a schematic structural view of an auxiliary leg positioning device for a large construction machine;
FIG. 2 is a sectional view taken along A-A of FIG. 1;
FIG. 3 is a schematic structural view of a shaft connecting mechanism in the positioning device for auxiliary support legs of a large construction machine;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3;
FIG. 6 is a schematic structural view of a support leg of the auxiliary leg positioning device of the large construction machine;
in the figure: 1-mounting plate, 2-supporting leg, 3-driving motor, 4-rotating shaft, 5-first through hole, 6-second through hole, 7-first bearing, 8-accommodating hole, 9-shaft connecting mechanism, 91-connecting block, 10-screw rod, 11-telescopic leg, 12-threaded hole, 13-supporting leg, 14-buffer pad, 15-first sliding groove, 16-first sliding block, 17-mounting groove, 18-fixed bearing, 19-blind hole, 20-tightening spring, 21-connecting plate, 22-steel ball, 23-arc groove, 24-second sliding block, 25-second sliding groove, 26-first supporting block, 27-cavity, 28-transverse plate, 29-tip, 30-third through hole, 31-driving shaft, etc, 32-a second bearing, 33-an eccentric wheel, 34-a rolling groove, 35-a wear-resistant pad, 36-a vertical groove, 37-a return spring, 38-a third sliding groove, 39-a third sliding block, 40-a second supporting block, 41-an adjusting handle, 42-a locking mechanism and 43-an anti-slip pad.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-6, an auxiliary supporting leg positioning device for large-scale construction machinery comprises a mounting plate 1, a supporting leg 2 is mounted at the center of the bottom of the mounting plate 1, a driving motor 3 is mounted at the center of the top of the mounting plate 1, the driving motor 3 is a positive and negative motor, a rotating shaft 4 is connected at the center of the bottom of the driving motor 3, a first through hole 5 is vertically formed at the center of the mounting plate 1, a second through hole 6 is vertically formed at the top of the center of the supporting leg 2, the first through hole 5 and the second through hole 6 are arranged in a collinear manner and are communicated with each other, a storage hole 8 is vertically formed at the bottom of the center of the supporting leg 2, the bottom of the rotating shaft 4 sequentially penetrates through the first through hole 5 and the second through hole 6 and is arranged in the storage hole 8, a shaft connecting mechanism 9 is arranged at the bottom of the rotating shaft connecting mechanism 9, a screw, the telescopic leg 11 is arranged in the accommodating hole 8, the bottom of the telescopic leg 11 is provided with a support leg 13, the support leg 13 is arranged outside the accommodating hole 8, the inner wall of the accommodating hole 8 is axially symmetrically provided with first sliding grooves 15, the first sliding grooves 15 are parallel to the telescopic leg 11, first sliding blocks 16 are arranged in the first sliding grooves 15 in a sliding manner, and one end of each first sliding block 16 is fixedly arranged on the outer wall of the telescopic leg 11; drive pivot 4 rotatory through driving motor 3, pivot 4 can drive screw rod 10 rotatory through shaft coupling mechanism 9, screw rod 10 this moment can begin to take place the spiro union with the screw hole 12 at 11 tops of flexible leg, turn to through controlling driving motor 3 and can control turning to of screw rod 10, because the outer wall of flexible leg 11 is spacing in the first spout 15 of accomodating in the hole 8 through first slider 16, therefore when screw rod 10 is rotatory, flexible leg 11 can't follow screw rod 10 and rotate together, flexible leg 11 can only reciprocate along first spout 15, realize flexible leg 11 flexible in accomodating hole 8 then, flexible leg 11 alright realize the location operation with stabilizer blade 13 together.
The rotating shaft 4 is rotatably connected with the top of the second through hole 6 through a first bearing 7.
The bottom of the support leg 2 is also provided with a cushion 14.
A second sliding groove 25 is axially symmetrically formed in the inner wall of the blind hole 19, a second sliding block 24 is slidably arranged in the second sliding groove 25, and one end of the second sliding block 24 is fixedly mounted on the connecting plate 21.
The shaft connecting mechanism 9 comprises a connecting block 91 with a cylindrical shape, the bottom of the connecting block 91 is connected with the top of the telescopic leg 11, the top center of the connecting block 91 is provided with a mounting groove 17, the bottom of the rotating shaft 4 is arranged in the mounting groove 17, the rotating shaft 4 is rotatably connected with the mounting groove 17 through a fixed bearing 18, the inner wall of the mounting groove 17 is uniformly provided with a plurality of blind holes 19, a jacking spring 20 is arranged in each blind hole 19, one end of each jacking spring 20 tightly abuts against the bottom of the blind hole 19, the other end of each blind hole is provided with a connecting plate 21, one end of each connecting plate 21 is connected with the jacking spring 20, the other end of each connecting plate 21 is provided with a steel ball 22, the outer wall of the bottom of the rotating shaft 4 is uniformly provided with a plurality of arc-shaped grooves 23, the arc-shaped grooves 23 are in one-to-one correspondence with the blind holes, then the telescopic leg 11 at this moment can not continue to extend out of the accommodating hole 8, but the driving motor 2 still continues to operate, under the conventional condition, the driving motor 2 at this moment is likely to burn out due to continuous operation, but the steel ball 22 in the shaft connecting mechanism 9 in the device is tightly propped in the arc-shaped groove 23 on the rotating shaft 4 through the propping spring 20, therefore, when the stress on the rotating shaft 4 is too large, the rotating shaft 4 at this moment applies force to the steel ball 22 through the arc-shaped groove 23, finally the steel ball 22 is separated from the arc-shaped groove 23, the idling of the rotating shaft 4 is realized, and the situation that the driving motor 2 is damaged is avoided.
The supporting leg 13 comprises a first supporting block 26, a cavity 27 is arranged inside the first supporting block 26, the cavity 27 is horizontally arranged, a transverse plate 28 is arranged in the cavity 27, a plurality of apexes 29 are uniformly arranged at the bottom of the transverse plate 28, a plurality of third through holes 30 are uniformly formed in the bottom of the first supporting block 26, the tops of the third through holes 30 are communicated with the cavity 27, the apexes 29 penetrate through the third through holes 30, a driving shaft 31 is arranged above the transverse plate 28 in the cavity 27, two ends of the driving shaft 31 penetrate through the cavity 27, the driving shaft 31 is connected with the first supporting block 26 through a second bearing 32, a plurality of eccentric wheels 33 are uniformly arranged on the driving shaft 31, a plurality of rolling grooves 34 are formed in the top of the transverse plate 28, the eccentric wheels 33 correspond to the rolling grooves 34, a plurality of vertical grooves 36 are formed in the bottom of the cavity 27, a reset spring 37 is arranged in each vertical groove 36, and the top; can make eccentric wheel 33 rotatory through rotating driving shaft 31, alright in order to change the contact surface of eccentric wheel 33 and diaphragm 28, and the bottom of diaphragm 28 is used in reset spring 37 again, consequently alright in order to realize the position control to diaphragm 28 through eccentric wheel 33 application of force to diaphragm 28, diaphragm 28 realizes oscilaltion alright in order to push out top 29 third through hole 30, realize the non-slip property of first supporting block 26 bottom, also can withdraw top 29 in the third through hole 30 when not using, avoid damage and accidental injury staff.
A wear pad 35 is arranged in the rolling groove 34.
The vertical groove 36 is arranged to intersect the third through hole 30.
The side part of the inner wall of the cavity 27 is symmetrically provided with a third sliding chute 38, a third sliding block 39 is arranged in the third sliding chute 38 in a sliding manner, and one end of the third sliding block 39 is fixedly arranged on the side part of the transverse plate 28.
The top of the cavity 27 is fixedly provided with a second supporting block 40, the driving shaft 31 passes through the second supporting block 40, and two ends of the driving shaft 31 are provided with adjusting handles 41.
And a locking mechanism 42 is arranged at the joint of the driving shaft 31 and the side wall of the first supporting block 26, and the locking mechanism 42 can lock the driving shaft 31 to avoid autorotation after the position of the transverse plate 28 is adjusted.
The bottom of the first supporting block 26 is provided with a non-slip pad 43.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (1)
1. The utility model provides a supplementary landing leg positioner of large-scale construction machinery, includes mounting panel (1), supporting leg (2) are installed at the bottom center of mounting panel (1), driving motor (3) are installed at the top center of mounting panel (1), driving motor (3) are positive and negative motor, the bottom center of driving motor (3) is connected with pivot (4), its characterized in that, the center of mounting panel (1) is vertical has seted up first through-hole (5), the center top of supporting leg (2) is vertical has seted up second through-hole (6), first through-hole (5) and second through-hole (6) collineation setting and intercommunication each other, the hole (8) are accomodate to the vertical having seted up in center bottom of supporting leg (2), the bottom of pivot (4) passes first through-hole (5), second through-hole (6) in proper order and locates accomodate in hole (8), the bottom of pivot (4) is equipped with shaft connecting mechanism (, the bottom of the shaft connecting mechanism (9) is provided with a screw rod (10), the shaft connecting mechanism (9) comprises a connecting block (91) which is cylindrical in shape, the bottom of the connecting block (91) is connected with the top of the telescopic leg (11), the top center of the connecting block (91) is provided with a mounting groove (17), the bottom of the rotating shaft (4) is arranged in the mounting groove (17), the rotating shaft (4) is rotatably connected with the mounting groove (17) through a fixed bearing (18), the inner wall of the mounting groove (17) is uniformly provided with a plurality of blind holes (19), a jacking spring (20) is arranged inside the blind hole (19), one end of the jacking spring (20) tightly abuts against the bottom of the blind hole (19), the other end of the jacking spring is provided with a connecting plate (21), one end of the connecting plate (21) is connected with the jacking spring (20), the other end of the connecting plate (21) is provided with a steel ball (, the arc-shaped grooves (23) correspond to the blind holes (19) one to one, one ends of steel balls (22) are tightly propped inside the arc-shaped grooves (23), the bottom of the screw rod (10) is installed in the threaded hole (12) in a matched mode, the threaded hole (12) is formed in the top of the telescopic leg (11), the telescopic leg (11) is arranged in the accommodating hole (8), the bottom of the telescopic leg (11) is provided with a support leg (13), the support leg (13) is arranged outside the accommodating hole (8), first sliding grooves (15) are axially symmetrically formed in the inner wall of the accommodating hole (8), the first sliding grooves (15) are parallel to the telescopic leg (11), a first sliding block (16) is arranged in the first sliding grooves (15) in a sliding mode, and one end of the first sliding block (16) is fixedly installed on the outer wall of the telescopic leg (;
the rotating shaft (4) is rotatably connected with the top of the second through hole (6) through a first bearing (7); the bottom of the supporting leg (2) is also provided with a cushion pad (14); a second sliding groove (25) is axially symmetrically formed in the inner wall of the blind hole (19), a second sliding block (24) is arranged in the second sliding groove (25) in a sliding mode, and one end of the second sliding block (24) is fixedly installed on the connecting plate (21); the supporting legs (13) comprise first supporting blocks (26), cavities (27) are arranged inside the first supporting blocks (26), the cavities (27) are horizontally arranged, transverse plates (28) are arranged in the cavities (27), a plurality of apexes (29) are uniformly arranged at the bottoms of the transverse plates (28), a plurality of third through holes (30) are uniformly formed in the bottoms of the first supporting blocks (26), the tops of the third through holes (30) are communicated with the cavities (27), the apexes (29) penetrate through the third through holes (30), a driving shaft (31) is arranged above the transverse plates (28) in the cavities (27), two ends of the driving shaft (31) penetrate through the cavities (27), the driving shaft (31) is connected with the first supporting blocks (26) through second bearings (32), a plurality of eccentric wheels (33) are uniformly arranged on the driving shaft (31), a plurality of rolling grooves (34) are formed in the tops of the transverse plates (28), and the eccentric wheels (33) correspond to the rolling grooves (34), a plurality of vertical grooves (36) are formed in the bottom of the cavity (27), return springs (37) are arranged in the vertical grooves (36), and the top ends of the return springs (37) are tightly propped against the bottom of the transverse plate (28); a wear-resistant pad (35) is arranged in the rolling groove (34); the vertical groove (36) and the third through hole (30) are arranged in a crossed manner; third sliding grooves (38) are symmetrically formed in the side portion of the inner wall of the cavity (27), third sliding blocks (39) are arranged in the third sliding grooves (38) in a sliding mode, and one ends of the third sliding blocks (39) are fixedly installed on the side portion of the transverse plate (28); a second supporting block (40) is fixedly installed at the top of the cavity (27), the driving shaft (31) penetrates through the second supporting block (40), and adjusting handles (41) are installed at two ends of the driving shaft (31); a locking mechanism (42) is installed at the joint of the driving shaft (31) and the side wall of the first supporting block (26), and a non-slip pad (43) is arranged at the bottom of the first supporting block (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133905.6A CN107956959B (en) | 2017-11-16 | 2017-11-16 | Auxiliary supporting leg positioning device for large-scale building machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133905.6A CN107956959B (en) | 2017-11-16 | 2017-11-16 | Auxiliary supporting leg positioning device for large-scale building machinery |
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| CN107956959A CN107956959A (en) | 2018-04-24 |
| CN107956959B true CN107956959B (en) | 2020-08-18 |
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| CN201711133905.6A Active CN107956959B (en) | 2017-11-16 | 2017-11-16 | Auxiliary supporting leg positioning device for large-scale building machinery |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109539083B (en) * | 2018-11-29 | 2021-05-11 | 深圳市优洋科技有限公司 | Outdoor LED illuminating lamp |
| CN111705647A (en) * | 2020-06-30 | 2020-09-25 | 浙江路鑫交通设施工程有限公司 | Safe impact-resistant guardrail and installation method thereof |
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| CN107956959A (en) | 2018-04-24 |
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