CN212155709U - Pulley support of jib crane - Google Patents
Pulley support of jib crane Download PDFInfo
- Publication number
- CN212155709U CN212155709U CN202020868499.9U CN202020868499U CN212155709U CN 212155709 U CN212155709 U CN 212155709U CN 202020868499 U CN202020868499 U CN 202020868499U CN 212155709 U CN212155709 U CN 212155709U
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- pulley
- auxiliary wheel
- supporting seat
- rotating shaft
- shaft
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Abstract
The utility model relates to a cantilever crane pulley support belongs to hoisting machinery technical field, and it includes the supporting seat, parallel arrangement has two backup pads on the supporting seat, two be provided with the loose pulley between the backup pad, be provided with the fixed pulley on the loose pulley, be provided with the spout one that supplies wire rope to convolute on the fixed pulley, be provided with the auxiliary wheel subassembly on the supporting seat, the auxiliary wheel subassembly include with loose pulley parallel arrangement's pivot one, a pivot one end and supporting seat connection, it is connected with the auxiliary wheel body to rotate on the pivot one. The utility model has the advantages of convenient pulley replacement.
Description
Technical Field
The utility model belongs to the technical field of the hoisting machinery technique and specifically relates to a cantilever crane pulley support is related to.
Background
The crane is a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects within a certain range, is also called a crane, and belongs to material carrying machinery. The crane is divided into a cantilever crane and a bridge crane according to the structure, the cantilever crane comprises a lifting mechanism, the lifting mechanism comprises a pulley assembly, the pulley assembly ensures that a stressed steel wire rope smoothly passes through the pulley assembly, and the steel wire rope does not jump when rolling over a pulley under the working condition of mechanism vibration.
Chinese patent publication No. CN204490354U discloses a fixed pulley device of a crane, which comprises a pulley support, a pulley shaft is arranged on the pulley support, a top pulley is axially fixed on the pulley, a sliding groove is formed in the fixed pulley, a rope blocking device is arranged on the pulley support, the rope blocking device comprises a wheel shaft parallel to the pulley shaft, a steel bushing is sleeved on the wheel shaft, and rope blocking wheel sleeves are arranged on the cylinder bushing at intervals.
The above prior art solutions have the following drawbacks: because the hoist uses under heavy load for a long time, the pulley wearing and tearing are very fast, when the race of pulley is comparatively serious, need change the pulley to avoid the pulley race to appear warping and fracture and lead to wire rope to break away from the race, need take out wire rope from whole pulley device when changing the pulley in the above-mentioned scheme, just can change the pulley, it is comparatively troublesome to change.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cantilever crane pulley support, have the comparatively convenient advantage of change pulley to prior art exists not enough.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a cantilever crane pulley support, includes the supporting seat, parallel arrangement has two backup pads on the supporting seat, two be provided with the pulley spindle between the backup pad, be provided with the fixed pulley on the pulley spindle, be provided with on the fixed pulley and supply the wire rope winding spout one, be provided with the auxiliary wheel subassembly on the supporting seat, the auxiliary wheel subassembly includes the pivot one with pulley spindle parallel arrangement, a pivot one end and supporting connection, it is connected with the auxiliary wheel body to rotate in the pivot one.
Through adopting above-mentioned technical scheme, when changing the fixed pulley, make wire rope break away from the fixed pulley with the wire rope rebound on the pulley to hang wire rope on the auxiliary wheel body, the auxiliary wheel body supports wire rope, then changes the fixed pulley, changes the back that finishes, goes up wire rope from the auxiliary wheel body and goes up to the fixed pulley, has saved and has pulled down wire rope and has worn to establish wire rope's step again, and it is comparatively convenient to change.
The utility model discloses further set up to: the supporting seat is rotatably connected with a second rotating shaft arranged in parallel with the pulley shaft, the second rotating shaft is rotatably connected with a supporting rod, the first rotating shaft is fixed at one end, far away from the second rotating shaft, of the supporting rod, and a torsion spring is arranged on the second rotating shaft.
Through adopting above-mentioned technical scheme, before taking out wire rope from spout one on the fixed pulley, revolute two rotation support rods of axis of rotation, make the auxiliary wheel body keep away from the fixed pulley, the clearance increase between fixed pulley and the auxiliary wheel body is convenient for take out wire rope from spout one.
The utility model discloses further set up to: the supporting seat is provided with a limit stop, and when the supporting rod abuts against the limit stop in the rotating process of the rotating shaft, the peripheral wall of the auxiliary wheel body abuts against the peripheral wall of the fixed pulley.
Through adopting above-mentioned technical scheme, in the normal use, the bracing piece butt under the torsional spring effect is on the stopper, and the sliding out in spout can be avoided to auxiliary wheel body and fixed pulley butt when the atress is uneven to wire rope, leads to wire rope wearing and tearing aggravation disconnected strand even, and the security is higher.
The utility model discloses further set up to: the auxiliary wheel body is axially provided with an adjusting groove, and the first rotating shaft is provided with a sliding block in sliding connection with the adjusting groove.
Through adopting above-mentioned technical scheme, when taking out wire rope from spout on the fixed pulley, slide the auxiliary wheel body to being close to the bracing piece direction along the adjustment tank, upwards mention the back with the wire rope in the spout one, slide the auxiliary wheel body to the direction of keeping away from the bracing piece along the adjustment tank again, loosen wire rope and make wire rope fall the auxiliary wheel body on the action of gravity, make the operation more convenient.
The utility model discloses further set up to: the auxiliary wheel assemblies are symmetrically provided with two groups on the supporting seat, and auxiliary wheel bodies in the two groups of auxiliary wheel assemblies are in threaded connection.
Through adopting above-mentioned technical scheme, hang back on the auxiliary wheel body with wire rope, can carry on spacingly with two sets of auxiliary wheel body threaded connection to two sets of auxiliary wheel bodies, prevent that the auxiliary wheel body from continuing to slide, vibrations when also can avoid dismouting fixed pulley simultaneously make wire rope from the landing on the auxiliary wheel body.
The utility model discloses further set up to: two groups of bearings are coaxially fixed on the pulley shaft, and the fixed pulley is fixed on an outer ring of the bearing.
Through adopting above-mentioned technical scheme, when hoist and mount goods weight is great, or when lacking under the condition of special lifting device the wire rope atress is uneven, the thrust that two sets of bearings can reduce the bearing and receive reduces the wearing and tearing speed of bearing.
The utility model discloses further set up to: the pulley shaft both ends respectively with two backup pads butts, wear to be equipped with locking bolt in the backup pad, locking bolt and pulley shaft threaded connection.
Through adopting above-mentioned technical scheme, when screwing locking bolt, locking bolt compresses tightly pulley shaft both ends respectively with two backup pads, when changing the fixed pulley, only needs to back out two sets of locking bolt and can take out the fixed pulley from the below, and it is comparatively convenient to use.
The utility model discloses further set up to: and two ends of the pulley shaft are respectively and vertically provided with a butt plate, and the butt plates are butted with the supporting plate.
Through adopting above-mentioned technical scheme, the butt board can increase the area of contact with the backup pad, makes the loose pulley axle more stable difficult emergence rock, and the butt board can avoid when hoist and mount heavier goods simultaneously, and the loose pulley axle tip takes place to warp, and stability is better.
To sum up, the utility model discloses a beneficial technological effect does:
1. when the fixed pulley is replaced, the steel wire rope on the fixed pulley is hung on the auxiliary wheel body, so that the steps of disassembling and re-penetrating the steel wire rope are omitted;
2. in the use process, the auxiliary wheel is abutted to the fixed pulley, so that the steel wire rope can be prevented from sliding from the first sliding groove.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a schematic view of the construction of the auxiliary wheel assembly of fig. 1.
In the figure, 1, a support seat; 2. a support plate; 3. a pulley shaft; 4. a fixed pulley; 5. a first sliding chute; 6. a secondary wheel assembly; 61. a mounting seat; 62. a second rotating shaft; 63. a support bar; 64. a first rotating shaft; 65. a secondary wheel body; 7. a bearing; 8. a butt joint plate; 9. locking the bolt; 10. an adjustment groove; 11. a slider; 12. a second chute; 13. a threaded sleeve; 14. a second threaded hole; 15. a torsion spring; 16. and a limit stop.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a cantilever crane pulley support, including supporting seat 1, 1 surface vertical fixation has two sets of backup pads 2 under the supporting seat, is equipped with pulley shaft 3 between two backup pads 2, and the last rotation of pulley shaft 3 is connected with fixed pulley 4, is provided with two sets of auxiliary wheel subassemblies 6 that are located fixed pulley 4 top on the supporting seat 1.
The coaxial two sets of bearings 7 that are fixed with in pulley shaft 3 middle part, bearing 7 is deep groove ball bearing, fixed pulley 4 cup joints and fixes on fixed pulley 4, 3 both ends of pulley shaft are coaxial respectively and are provided with butt board 8, butt board 8 and 3 integrated into one piece of pulley shaft, two butt boards 8 butt respectively in the inboard of two backup pads 2, 3 both ends of pulley shaft are coaxial set up screw hole respectively, set up the through-hole with the coaxial setting of screw hole in backup pad 2, wear to be equipped with locking bolt 9 in the through-hole, locking bolt 9 and screw hole threaded connection.
The side wall of the fixed pulley 4 is circumferentially provided with a first sliding groove 5 for the steel wire rope to penetrate, the first sliding groove 5 is arranged on the side wall of the fixed pulley 4 at intervals and is provided with two groups, and the depth of the first sliding groove 5 is larger than the diameter of the steel wire rope.
Referring to fig. 2 and 3, the auxiliary wheel assembly 6 includes a mounting seat 61, a second rotating shaft 62 parallel to the pulley shaft 3 is arranged on the mounting seat 61 in a penetrating manner, the second rotating shaft 62 is rotatably connected with the mounting seat 61, a supporting rod 63 is fixed at one end of the second rotating shaft 62, a first rotating shaft 64 is fixed at one end of the supporting rod 63 far away from the second rotating shaft 62, the first rotating shaft 64 is parallel to the second rotating shaft 62, and an auxiliary wheel body 65 is sleeved on the first rotating shaft 64.
An end face, far away from the supporting rod 63, of the auxiliary wheel body 65 is provided with an adjusting groove 10 along the axial direction, a first rotating shaft 64 is fixedly connected with a sliding block 11, the sliding block 11 is connected in the adjusting groove 10 in a sliding mode, and the side face of the auxiliary wheel body 65 is provided with a second annular sliding groove 12 along the circumferential direction.
In the two auxiliary wheel bodies 65, one auxiliary wheel body 65 is coaxially provided with the threaded sleeve 13, the other auxiliary wheel is provided with a threaded hole II 14 matched with the threaded sleeve 13, when the threaded sleeve 13 is in threaded connection with the threaded hole II 14, so that the end surfaces of the two auxiliary wheel bodies 65 are abutted, the sliding block 11 is abutted against the end surface of the adjusting groove 10, and the sliding groove II 12 corresponds to the sliding groove I5.
The second rotating shaft 62 is sleeved with a torsion spring 15, one end of the torsion spring 15 is connected with the supporting seat 1, a limit stop 16 is fixed on the supporting seat 1, the supporting rod 63 abuts against the limit stop 16 under the action of the torsion spring 15 in the initial state, and at the moment, the auxiliary wheel body 65 is tangent to the fixed pulley 4.
The implementation principle of the embodiment is as follows: when the auxiliary wheel is normally used, the auxiliary wheel bodies 65 are tangent to the fixed pulley 4 and abut against the fixed pulley 4, the two auxiliary wheel bodies 65 are in threaded connection, the sliding groove II 12 corresponds to the sliding groove I5, the steel wire rope is limited, and the steel wire rope is prevented from separating from the sliding groove I5;
when the fixed pulley 4 is replaced, the two auxiliary wheel bodies 65 are rotated firstly, the two auxiliary wheel bodies 65 are separated, then the supporting rod 63 is rotated around the second rotating shaft 62, the auxiliary wheel bodies 65 are far away from the fixed pulley 4, then the steel wire rope is lifted upwards, then the supporting rod 63 is loosened, the supporting rod 63 resets under the action of the torsion spring 15, then the steel wire rope is loosened, the steel wire rope falls onto the auxiliary wheel bodies 65, and then the fixed pulley 4 is replaced.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a cantilever crane pulley support, includes supporting seat (1), parallel arrangement has two backup pads (2) on supporting seat (1), two be provided with between backup pad (2) pulley spindle (3), be provided with fixed pulley (4) on pulley spindle (3), be provided with on fixed pulley (4) and supply the winding spout one (5) of wire rope, its characterized in that: be provided with auxiliary wheel subassembly (6) on supporting seat (1), auxiliary wheel subassembly (6) include with pulley shaft (3) parallel arrangement's pivot (64), pivot (64) one end is connected with supporting seat (1), it is connected with auxiliary wheel body (65) to rotate on pivot (64).
2. The boom crane sheave support of claim 1, wherein: the supporting seat (1) is rotatably connected with a second rotating shaft (62) parallel to the pulley shaft (3), the second rotating shaft (62) is rotatably connected with a supporting rod (63), the first rotating shaft (64) is fixed at one end of the supporting rod (63) far away from the second rotating shaft (62), and a torsion spring (15) is arranged on the second rotating shaft (62).
3. The boom crane sheave support of claim 2, wherein: the supporting seat (1) is provided with a limit stop (16), and when the supporting rod (63) abuts against the limit stop (16) in the rotating process of the rotating shaft I (64), the peripheral wall of the auxiliary wheel body (65) abuts against the peripheral wall of the fixed pulley (4).
4. The boom crane sheave support of claim 3, wherein: the auxiliary wheel body (65) is axially provided with an adjusting groove (10), and the first rotating shaft (64) is provided with a sliding block (11) which is in sliding connection with the adjusting groove (10).
5. The boom crane sheave support of claim 4, wherein: the auxiliary wheel assemblies (6) are symmetrically provided with two groups on the supporting seat (1), and auxiliary wheel bodies (65) in the two groups of auxiliary wheel assemblies (6) are in threaded connection.
6. The boom crane sheave support of claim 1, wherein: two groups of bearings (7) are coaxially fixed on the pulley shaft (3), and the fixed pulley (4) is fixed on the outer ring of the bearings (7).
7. The boom crane sheave support of claim 6, wherein: pulley shaft (3) both ends respectively with two backup pads (2) butt, wear to be equipped with locking bolt (9) on backup pad (2), locking bolt (9) and pulley shaft (3) threaded connection.
8. The boom crane sheave support of claim 7, wherein: pulley shaft (3) both ends are provided with butt joint board (8) respectively perpendicularly, butt joint board (8) and backup pad (2) butt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020868499.9U CN212155709U (en) | 2020-05-21 | 2020-05-21 | Pulley support of jib crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020868499.9U CN212155709U (en) | 2020-05-21 | 2020-05-21 | Pulley support of jib crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212155709U true CN212155709U (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020868499.9U Active CN212155709U (en) | 2020-05-21 | 2020-05-21 | Pulley support of jib crane |
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| CN (1) | CN212155709U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404845A (en) * | 2021-07-05 | 2021-09-17 | 连云港亚新钢铁有限公司 | Rope wheel of blast furnace material trolley |
| CN114524034A (en) * | 2021-12-31 | 2022-05-24 | 中国人民解放军国防科技大学 | Light-weight traction rope type control device of ground unmanned system |
-
2020
- 2020-05-21 CN CN202020868499.9U patent/CN212155709U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404845A (en) * | 2021-07-05 | 2021-09-17 | 连云港亚新钢铁有限公司 | Rope wheel of blast furnace material trolley |
| CN114524034A (en) * | 2021-12-31 | 2022-05-24 | 中国人民解放军国防科技大学 | Light-weight traction rope type control device of ground unmanned system |
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