CN211569935U

CN211569935U - Limiting device for tower crane

Info

Publication number: CN211569935U
Application number: CN202020160998.2U
Authority: CN
Inventors: 魏华洋; 孙孝军; 薛天河; 刘凤娇; 李永刚; 刘龙燕; 侯红星
Original assignee: Shandong Mingwei Lifting Equipment Co ltd
Current assignee: Shandong Mingwei Lifting Equipment Co ltd
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-09-25
Anticipated expiration: 2030-02-11

Abstract

The utility model relates to the technical field of limiting, in particular to a limiting device for a tower crane; the number of the limiting shafts can be increased, the limiting stability of the traction rope is improved, and the use reliability of the equipment is improved; including two sets of first backup pads, rotatable first spacing axle that is provided with between two sets of first backup pads, still include spacing axle of second and two sets of second backup pads, left side second backup pad right-hand member downside and right side second backup pad left end downside contact with left side first backup pad left end and right side first backup pad right-hand member respectively, left side first backup pad left end and right side first backup pad right-hand member all are provided with the first thread groove of multiunit, two sets of second backup pad downside all is provided with first connecting hole, all be provided with first bolt in two sets of first connecting holes, left side first bolt right-hand member and right side first bolt left end are installed screw respectively after passing two sets of first connecting holes and are inserted to two sets of first thread grooves.

Description

Limiting device for tower crane

Technical Field

The utility model relates to a spacing technical field especially relates to a stop device for tower crane.

Background

As is well known, a limiting device for a tower crane is a device used for limiting a traction rope in the crane in the transmission process when the tower crane is used, can reduce the shaking phenomenon of the traction rope, and is widely used in the field of limiting devices; the existing limiting device for the tower crane comprises two groups of first supporting plates, a first limiting shaft is rotatably arranged between the two groups of first supporting plates, and the left end and the right end of the first limiting shaft are respectively rotatably connected with the upper side of the right end of a left first supporting plate and the upper side of the left end of a right first supporting plate; when the limiting device for the tower crane is used, the first limiting shaft is arranged at the steering position of the traction rope, so that the traction rope can be limited to a certain extent, and the derailment phenomenon of the traction rope on the outer side wall of the steering wheel is reduced; the limiting device for the tower crane is found in use, and in the use process, a group of limiting shafts are poor in limiting effect on the traction rope, stable limiting is difficult to perform, and the use reliability of equipment is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an increase the quantity of spacing axle, improve the spacing stability to the haulage rope, improve equipment's the stop device that is used for tower crane of use reliability.

The utility model discloses a stop device for tower crane, including two sets of first backup pads, rotatable first spacing axle that is provided with between two sets of first backup pads, first spacing axle left end and right-hand member respectively with left side first backup pad right-hand member upside and right side first backup pad left end upside rotatable coupling; the first support plate comprises a first support plate and a second support plate, wherein the first support plate comprises a first support plate body and a second support plate body, the second support plate body is arranged on the first support plate body, the second support plate body is arranged on the second support plate body, the second support plate body is arranged on the left side of the second support plate body, the second support plate body is arranged on the right side of.

The utility model discloses a stop device for tower crane still includes first bottom plate and electric telescopic handle, and electric telescopic handle is fixed to be set up in first bottom plate top middle part, and the electric telescopic handle output end is fixed to be provided with first commentaries on classics board, and two sets of first backup pads set up in first commentaries on classics board upside.

The utility model discloses a stop device for tower crane still includes the second and changes the board, and the second changes the board and sets up in first board upside, and two sets of first backup pad bottoms are connected with second commentaries on classics board top left side and top right side respectively, and the second changes the board bottom and contacts with first board top, and first board top is provided with annular slide, and annular slide left side and right side all are provided with the slider, and two sets of slider tops are connected with second commentaries on classics board bottom left side and bottom right side respectively.

The utility model discloses a stop device for tower crane still includes two sets of second bolts, and left side slider left end and right side slider right-hand member all are provided with the second thread groove, and second revolving plate left end, right-hand member, front end and rear end all are provided with the second connecting hole, and two sets of second bolts pass respectively behind left side and the two sets of second connecting holes on right side respectively the spiral shell dress insert to left side and the two sets of second thread grooves on right side.

The utility model discloses a stop device for tower crane still includes two sets of third bolts and second bottom plate, and the second bottom plate sets up in first bottom plate downside, and first bottom plate and second bottom plate left side and right side all are provided with the third connecting hole, and two sets of third connecting holes in left side and two sets of third connecting holes in right side are passed respectively to two sets of third bolt bottoms, and the equal spiral shell dress cover of two sets of third bolt lateral wall downside is equipped with the nut.

The utility model discloses a stop device for tower crane still includes the guard box, is provided with the guard chamber in the guard box, and the guard box bottom is provided with the opening, and opening and guard chamber bottom intercommunication, guard box bottom and first bottom plate top middle part are connected, and guard box top middle part is provided with the fourth connecting hole, and the electric telescopic handle output passes the fourth connecting hole.

The utility model discloses a stop device for tower crane, the first spacing off-axial wall and the spacing off-axial wall of second are all fixed and are provided with the antiskid circle.

The utility model discloses a stop device for tower crane, the first backup pad right-hand member upside in left side and the first backup pad left end upside in right side all are provided with first mounting groove, the first bearing of all fixing is provided with in two sets of first mounting grooves, first spacing axle left end and right-hand member insert respectively in two sets of first bearings and be connected with two sets of first bearing inside walls respectively, left side second backup pad right-hand member upside and right side second backup pad left end upside all are provided with the second mounting groove, the equal fixed second bearing that is provided with in two sets of second mounting grooves, the spacing axle left end of second and right-hand member insert respectively to two sets of second bearings and be connected with two sets of second bearing inside walls respectively.

Compared with the prior art, the beneficial effects of the utility model are that: install equipment in the position that needs spacingly, install two sets of second backup pads in two sets of first backup pad left end and right-hand member, external diameter according to the haulage rope, adjust the position of the spacing axle of second, carry out the regulation of direction from top to bottom with two sets of second backup pads, use two sets of first bolts to pass behind two sets of first connecting holes spiral shell dress and insert to two sets of first thread grooves of relevant position, make the haulage rope be located between first spacing axle and the spacing axle of second, the haulage rope is in transmission process, first spacing axle and the spacing axle of second can rotate, first spacing axle and the spacing axle of second can carry on spacingly to the haulage rope, reduce the removal phenomenon of rocking and position of haulage rope, reduce the derailment phenomenon of haulage rope simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of the annular slide and slide;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is an enlarged view of portion B of FIG. 1;

in the drawings, the reference numbers: 1. a first support plate; 2. a first limit shaft; 3. a second limit shaft; 4. a second support plate; 5. a first bolt; 6. a first base plate; 7. an electric telescopic rod; 8. a first rotating plate; 9. a second rotating plate; 10. an annular chute; 11. a slider; 12. a second bolt; 13. a third bolt; 14. a second base plate; 15. a nut; 16. a protection box; 17. a protection cavity; 18. an anti-slip ring; 19. a first bearing; 20. a second bearing.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the limiting device for a tower crane of the present invention comprises two sets of first supporting plates 1, a first limiting shaft 2 is rotatably disposed between the two sets of first supporting plates 1, and the left end and the right end of the first limiting shaft 2 are rotatably connected to the upper side of the right end of the left first supporting plate 1 and the upper side of the left end of the right first supporting plate 1, respectively; the left end and the right end of the second limiting shaft 3 are respectively rotatably connected with the upper sides of the right end of the left second supporting plate 4 and the left end of the right second supporting plate 4, the lower side of the right end of the left second supporting plate 4 and the lower side of the left end of the right second supporting plate 4 are respectively contacted with the left end of the left first supporting plate 1 and the right end of the right first supporting plate 1, the left end of the left first supporting plate 1 and the right end of the right first supporting plate 1 are respectively provided with a plurality of groups of first thread grooves, the lower sides of the two groups of second supporting plates 4 are respectively provided with first connecting holes, first bolts 5 are arranged in the two groups of first connecting holes, and the right end of the left first bolt 5 and the left end of the right first bolt 5 respectively penetrate through the two groups of first connecting holes and then are respectively screwed and inserted into the two groups of first thread grooves; install equipment in the position that needs spacingly, install two sets of second backup pads in two sets of first backup pad left end and right-hand member, external diameter according to the haulage rope, adjust the position of the spacing axle of second, carry out the regulation of direction from top to bottom with two sets of second backup pads, use two sets of first bolts to pass behind two sets of first connecting holes spiral shell dress and insert to two sets of first thread grooves of relevant position, make the haulage rope be located between first spacing axle and the spacing axle of second, the haulage rope is in transmission process, first spacing axle and the spacing axle of second can rotate, first spacing axle and the spacing axle of second can carry on spacingly to the haulage rope, reduce the removal phenomenon of rocking and position of haulage rope, reduce the derailment phenomenon of haulage rope simultaneously.

The utility model discloses a stop device for tower crane still includes first bottom plate 6 and electric telescopic handle 7, and electric telescopic handle 7 is fixed to be set up in 6 top middle parts of first bottom plates, and 7 output ends of electric telescopic handle are fixed and are provided with first rotor plate 8, and two sets of first backup pads 1 set up in the first rotor plate 8 upside; first bottom plate can support electric telescopic handle, and electric telescopic handle can adjust the height of first commentaries on classics board, installs first bottom plate on the mounting bracket of hoist, adjusts electric telescopic handle according to the distance between mounting bracket and the haulage rope, reduces the use limitation of equipment.

The utility model discloses a stop device for tower crane still includes second commentaries on classics board 9, and second commentaries on classics board 9 sets up in first commentaries on classics board 8 upside, and 1 bottoms of two sets of first backup pads are connected with 9 top left sides and top right sides of second commentaries on classics board respectively, and 9 bottoms of second commentaries on classics board contact with 8 tops of first commentaries on classics board, and 8 tops of first commentaries on classics board are provided with annular slide 10, and annular slide 10 left sides and right sides all are provided with slider 11, and two sets of slider 11 tops are connected with 9 bottoms left sides and bottom right sides of second commentaries on classics; when the use angle needs to be adjusted, the second rotating plate can be rotated, the second rotating plate is rotated to the use angle, the second bolt is used to penetrate through the second connecting hole and then screwed into the second thread groove, and the stability of the second bolt can be improved.

The utility model discloses a stop device for tower crane still includes two sets of second bolts 12, and left side slider 11 left end and right side slider 11 right-hand member all are provided with the second thread groove, and second commentaries on classics board 9 left end, right-hand member, front end and rear end all are provided with the second connecting hole, and two sets of second bolts 12 are respectively passed left side and right side two sets of second connecting holes after the spiral shell dress inserts to left side and right side two sets of second thread grooves respectively; after the angle adjustment is finished, the stability of the two groups of second bolts is respectively improved.

The utility model discloses a stop device for tower crane still includes two sets of third bolts 13 and second bottom plate 14, and second bottom plate 14 sets up in first bottom plate 6 downside, and first bottom plate 6 and second bottom plate 14 left side and right side all are provided with the third connecting hole, and two sets of third bolts 13 bottom pass left side two sets of third connecting holes and right side two sets of third connecting holes respectively, and two sets of third bolts 13 lateral wall downside all the spiral shell suit is equipped with nut 15; when installing it, on installing two sets of third bolt spiro union to the mounting bracket, or use first bottom plate and second bottom plate to install it, install second bottom plate and first bottom plate in fixed panel both sides, use two sets of third bolts to fix first bottom plate and second bottom plate, improve its stability.

The utility model discloses a stop device for tower crane still includes guard box 16, is provided with protection cavity 17 in the guard box 16, and the guard box 16 bottom is provided with the opening, and the opening communicates with protection cavity 17 bottom, and the guard box 16 bottom is connected with the top middle part of first bottom plate 6, and the guard box 16 top middle part is provided with the fourth connecting hole, and the output of electric telescopic handle 7 passes through the fourth connecting hole; the guard box can protect electric telescopic handle, reduces rainwater or dust etc. and causes the influence to its use.

In the limiting device for the tower crane, the outer side wall of the first limiting shaft 2 and the outer side wall of the second limiting shaft 3 are both fixedly provided with an anti-skid ring 18; the friction of the first spacing axle and the spacing off-axial wall of second can be improved in the setting of antiskid circle.

The utility model discloses a stop device for tower crane, left side first backup pad 1 right-hand member upside and right side first backup pad 1 left end upside all are provided with first mounting groove, all fix in two sets of first mounting grooves and be provided with first bearing 19, first spacing axle 2 left end and right-hand member insert respectively in two sets of first bearing 19 and respectively with two sets of first bearing 19 inside walls, left side second backup pad 4 right-hand member upside and right side second backup pad 4 left end upside all are provided with the second mounting groove, all fix in two sets of second mounting grooves and be provided with second bearing 20, second spacing axle 3 left end and right-hand member insert respectively to two sets of second bearing 20 and respectively with two sets of second bearing 20 inside walls connection; the first bearing and the second bearing are arranged, so that the rotating lubricating property of the first limiting shaft and the second limiting shaft can be improved, and the friction force in the rotating process is reduced.

The utility model discloses a stop device for tower crane, when using, firstly adjust the position of the second rotating plate according to the angle of use, rotate the second rotating plate, two sets of sliders rotate from the annular slide way, the first bottom plate can support the electric telescopic handle, the electric telescopic handle can adjust the height of the first rotating plate, the first bottom plate is installed on the installation frame of the crane, the electric telescopic handle is adjusted according to the distance between the installation frame and the traction rope, the use limitation of the equipment is reduced, afterwards, two sets of second support plates are installed at the left end and the right end of the two sets of first support plates, the position of the second limit shaft is adjusted according to the outer diameter of the traction rope, the two sets of second support plates are adjusted in the up-down direction, after passing through two sets of first connecting holes by two sets of first bolts, the bolts are inserted into two sets of first thread grooves at corresponding positions, make the haulage rope be located between first spacing axle and the spacing axle of second, the haulage rope is in transmission process, first spacing axle and the spacing axle of second can rotate, first spacing axle and the spacing axle of second can carry on spacingly to the haulage rope, reduce the removal phenomenon of rocking and position of haulage rope, reduce the derailment phenomenon of haulage rope simultaneously, finally, with equipment fixing in needs spacing position, with two sets of third bolt spiral shell dress to the mounting bracket on, or use first bottom plate and second bottom plate to install it, install second bottom plate and first bottom plate in fixed panel both sides, use two sets of third bolt to fix first bottom plate and second bottom plate, after the fixed, use the spiral shell dress to insert to the second thread groove after the second bolt passes the second connecting hole, can improve its stability.

The limiting device for the tower crane of the utility model has the advantages that the installation mode, the connection mode or the setting mode are common mechanical modes, and the limiting device can be implemented as long as the beneficial effects can be achieved; and its electric telescopic handle is from taking control module and electric wire, and plug the electricity and can use, does not change its inner structure.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A limiting device for a tower crane comprises two groups of first supporting plates (1), a first limiting shaft (2) is rotatably arranged between the two groups of first supporting plates (1), and the left end and the right end of the first limiting shaft (2) are respectively rotatably connected with the upper side of the right end of a left first supporting plate (1) and the upper side of the left end of a right first supporting plate (1); it is characterized by also comprising a second limiting shaft (3) and two groups of second supporting plates (4), wherein the second limiting shaft (3) is arranged on the upper side of the first limiting shaft (2), the two groups of second supporting plates (4) are respectively arranged at the left end and the right end of the second limiting shaft (3), the left end and the right end of the second limiting shaft (3) are respectively in rotatable connection with the upper side of the right end of the left second supporting plate (4) and the upper side of the left end of the right second supporting plate (4), the lower side of the right end of the left second supporting plate (4) and the lower side of the left end of the right second supporting plate (4) are respectively in contact with the left end of the left first supporting plate (1) and the right end of the right first supporting plate (1), a plurality of groups of first thread grooves are arranged at the left end of the left first supporting plate (1) and the right end of the right first supporting plate (1), first connecting holes are arranged at the lower sides of the two groups of second, the right end of the first bolt (5) on the left side and the left end of the first bolt (5) on the right side penetrate through the two groups of first connecting holes respectively and then are inserted into the two groups of first thread grooves in a threaded mode.

2. The limiting device for the tower crane according to claim 1, further comprising a first bottom plate (6) and an electric telescopic rod (7), wherein the electric telescopic rod (7) is fixedly arranged in the middle of the top end of the first bottom plate (6), the output end of the electric telescopic rod (7) is fixedly provided with a first rotating plate (8), and the two groups of first supporting plates (1) are arranged on the upper side of the first rotating plate (8).

3. The limiting device for the tower crane according to claim 2, further comprising a second rotating plate (9), wherein the second rotating plate (9) is arranged on the upper side of the first rotating plate (8), the bottom ends of the two groups of first supporting plates (1) are respectively connected with the left side of the top end and the right side of the top end of the second rotating plate (9), the bottom end of the second rotating plate (9) is in contact with the top end of the first rotating plate (8), the top end of the first rotating plate (8) is provided with an annular slide way (10), the left side and the right side of the annular slide way (10) are respectively provided with a slide block (11), and the top ends of the two groups of slide blocks (11) are respectively connected with the left side of the bottom end and the right side of the second rotating.

4. The limiting device for the tower crane according to claim 3, further comprising two sets of second bolts (12), wherein the left end of the left slider (11) and the right end of the right slider (11) are provided with second thread grooves, the left end, the right end, the front end and the rear end of the second rotating plate (9) are provided with second connecting holes, and the two sets of second bolts (12) are respectively inserted into the two sets of second thread grooves after respectively penetrating through the two sets of second connecting holes on the left side and the right side.

5. The limiting device for the tower crane according to claim 4, further comprising two sets of third bolts (13) and a second base plate (14), wherein the second base plate (14) is arranged on the lower side of the first base plate (6), third connecting holes are formed in the left side and the right side of the first base plate (6) and the second base plate (14), the bottom ends of the two sets of third bolts (13) respectively penetrate through the two sets of third connecting holes in the left side and the two sets of third connecting holes in the right side, and nuts (15) are arranged on the lower sides of the outer side walls of the two sets of third bolts (13) in a screwed and sleeved mode.

6. The limiting device for the tower crane according to claim 5, further comprising a protection box (16), wherein a protection cavity (17) is formed in the protection box (16), a through hole is formed in the bottom end of the protection box (16), the through hole is communicated with the bottom end of the protection cavity (17), the bottom end of the protection box (16) is connected with the middle portion of the top end of the first bottom plate (6), a fourth connecting hole is formed in the middle portion of the top end of the protection box (16), and the output end of the electric telescopic rod (7) penetrates through the fourth connecting hole.

7. A limiting device for a tower crane according to claim 6, wherein the outer side wall of the first limiting shaft (2) and the outer side wall of the second limiting shaft (3) are both fixedly provided with anti-skid rings (18).

8. The limiting device for the tower crane according to claim 7, wherein the upper side of the right end of the left first supporting plate (1) and the upper side of the left end of the right first supporting plate (1) are provided with first mounting grooves, the two sets of first mounting grooves are fixedly provided with first bearings (19), the left end and the right end of the first limiting shaft (2) are respectively inserted into the two sets of first bearings (19) and are respectively connected with the inner side walls of the two sets of first bearings (19), the upper side of the right end of the left second supporting plate (4) and the upper side of the left end of the right second supporting plate (4) are provided with second mounting grooves, the two sets of second mounting grooves are respectively fixedly provided with second bearings (20), and the left end and the right end of the second limiting shaft (3) are respectively inserted into the two sets of second bearings (20) and are respectively connected with the inner side walls of the two sets of.