CN221521867U - Crown block cable supporting pulley - Google Patents

Abstract

The utility model discloses a crown block cable supporting pulley, which belongs to the technical field of cable supporting pulleys and comprises a combined plate, wherein an arc cable supporting plate is fixedly arranged on the lower surface of the combined plate through a hoisting bolt, two vertical plates are rotatably arranged on the upper surface of the combined plate, J-shaped supporting and tightening plates are fixedly arranged on the lower parts of the opposite surfaces of the two vertical plates, the opposite surfaces of the two J-shaped supporting and tightening plates are attached together, a long rod bolt is fixedly arranged between the two vertical plates, the long rod bolt penetrates through the two J-shaped supporting and tightening plates, a plurality of pulleys are rotatably arranged on the upper parts of the opposite surfaces of the two vertical plates through bolt shafts, pressure bearings are fixedly arranged between the pulleys and the corresponding vertical plates in a clamping mode, and the bolt shafts penetrate through the corresponding pressure bearings.

Description

Crown block cable supporting pulley

Technical Field

The utility model belongs to the technical field of cable supporting pulleys, and particularly relates to a crown block cable supporting pulley.

Background

The cable supporting pulley is a bearing mechanism used for supporting and lifting cables to move together with the equipment in bridge type lifting equipment.

Through searching, the Chinese patent in the related field is granted with the patent publication number: CN205045716U, patent name: the quick-change cable supporting pulley for the bridge crane movable trolley supporting cable comprises a bearing auxiliary plate, wherein the bearing auxiliary plate is provided with a circular through hole along the thickness direction, and the bearing auxiliary plate is fixed on the outer side surface of the bearing plate through bolts; the upper edge of the bearing plate is provided with a U-shaped groove which is communicated in the thickness direction of the bearing plate, an opening of the U-shaped groove is positioned on the upper edge of the bearing plate, and a pulley wheel axle penetrates through the U-shaped groove of the bearing plate and a circular through hole of the bearing auxiliary plate and is fixed on the outer side face of the bearing auxiliary plate through a nut.

In practice, in the application process of the quick-change cable-supporting pulley in the coal dust area of the iron-making total plant in the prior art, due to frequent use, the vertical plate is seriously damaged due to friction between the pulley and the fixed vertical plate, and the vertical plate needs to be replaced every two months on average. Because the cable supporting weight is large in the overhead operation, three people are required to take three to four hours in the process of replacing the vertical plate, so that not only is the control of overtime expense seriously affected, but also the physical expenditure of personnel is increased, and the maintenance cost of the vertical plate is large.

Disclosure of utility model

Aiming at the problems of serious abrasion between a pulley and a vertical plate, high replacement frequency and high maintenance cost of the quick-change cable supporting pulley in the prior art, the utility model provides the crown block cable supporting pulley, and the pressure bearing is arranged between the vertical plate and the pulley, and the pulley can drive the pressure bearing to rotate together in the rotating process, so that the friction resistance between the pulley and the vertical plate is reduced, the service life of the vertical plate is prolonged, the maintenance replacement frequency is further reduced, the maintenance cost is saved, and the problems of high replacement frequency and high maintenance cost of the quick-change cable supporting pulley in the prior art are effectively solved. The specific technical scheme is as follows:

The utility model provides a crown block holds in palm cable coaster, includes the composite board, the lower surface of composite board has arc cable board through hoist and mount bolt fixed mounting, the upper surface rotation of composite board installs two risers, two equal fixed mounting of opposite face lower part of riser has J type to support tight board, two the opposite face laminating of J type to support tight board is in the same place, two fixed mounting has the stock bolt between the riser, the stock bolt runs through two J type supports tight board, two a plurality of pulleys are all installed through the bolt shaft rotation on opposite face upper portion of riser, all centre gripping installs pressure bearing between pulley and the riser that corresponds, the bolt shaft runs through corresponding pressure bearing.

In the above technical scheme, the composite board includes upper plate and hypoplastron, the upper surface of upper plate and the lower surface of hypoplastron all are provided with the laminating groove, arc holds in the palm cable board, upper plate, hypoplastron and laminating groove's upper surface all runs through and has seted up the connecting hole, hoist and mount bolt runs through the connecting hole that corresponds and fixes arc holds in the palm cable board, upper plate and hypoplastron together.

In the above technical scheme, the rear surface of upper plate and the equal symmetry fixed mounting of hypoplastron front surface have the changeover piece, the equal fixed mounting of lower surface of riser has the changeover axle, the changeover axle rotates and installs between two preceding and back corresponding changeover pieces.

In the technical scheme, the reinforcing plates are fixedly arranged between the vertical plates and the corresponding J-shaped abutting plates.

In the technical scheme, the number of the assembly of the hoisting bolts is four, and the four hoisting bolts symmetrically penetrate through four corners of the combined plate.

Compared with the prior art, the crown block cable supporting pulley has the beneficial effects that:

1. According to the utility model, the pressure bearing is arranged between the vertical plate and the pulley, and the pulley can drive the pressure bearing to rotate together in the rotating process, so that the friction resistance between the pulley and the vertical plate is reduced, the service life of the vertical plate is prolonged, the maintenance and replacement frequency is further reduced, and the maintenance cost is saved.

2. According to the utility model, the J-shaped abutting plates are arranged on the opposite surfaces of the two vertical plates, the vertical plates are rotatably arranged on the upper surface of the combined plate, and the two vertical plates and the two J-shaped abutting plates are fixed by using the long rod bolts. When taking down whole overhead traveling crane support coaster from the I-shaped rail in bridge type hoisting equipment and maintaining, can directly dismantle the stock bolt, the riser that turns over to the outside makes the pulley break away from the I-shaped rail to realize dismantling fast, help showing the overhead working time that reduces the dismantlement personnel, improve dismantlement efficiency.

Drawings

Fig. 1 is a schematic diagram of a front view structure of the present utility model.

Fig. 2 is a schematic diagram of an explosive structure according to the present utility model.

Fig. 3 is a schematic structural diagram of the present utility model in application.

In fig. 1-3, wherein: 1. a combination board; 11. an upper plate; 12. a lower plate; 13. a bonding groove; 14. a transfer block; 2. a vertical plate; 21. a J-shaped abutting plate; 211. a reinforcing plate; 22. a long rod bolt; 23. a transfer shaft; 3. a bolt shaft; 4. a pulley; 5. a pressure bearing; 6. hoisting a bolt; 7. an arc-shaped cable supporting plate; 8. i-shaped steel rail.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution:

The utility model provides a crown block holds in palm cable coaster, including composite board 1, composite board 1's lower surface has arc cable board 7 through hoist and mount bolt 6 fixed mounting, composite board 1's upper surface rotates and installs two risers 2, two riser 2's opposite face lower part is all fixed mounting has J type to support tight board 21, two J type support tight board 21's opposite face laminating together, fixed mounting has stock bolt 22 between two risers 2, stock bolt 22 runs through two J type and supports tight board 21, two riser 2's opposite face upper portions all rotate through bolt shaft 3 and install a plurality of pulleys 4, all centre gripping between pulley 4 and the riser 2 that corresponds is installed pressure bearing 5, bolt shaft 3 runs through corresponding pressure bearing 5;

When the crane cable supporting pulley is used, as shown in the figure 3, the pulleys 4 are firstly arranged in the I-shaped steel rail 8 through the overturning vertical plates 2, after the installation, the two vertical plates 2 are continuously overturned inwards, so that the two J-shaped supporting and tightening plates 21 are attached together, finally, the long rod bolts 22 penetrate through the vertical plates 2 and the J-shaped supporting and tightening plates 21 to fix the two J-shaped supporting and tightening plates, and after the fixing, the pulleys 4 are slidably arranged in the I-shaped steel rail 8.

It should be noted that, as shown in fig. 2, the combined board 1 includes an upper board 11 and a lower board 12, the upper surface of the upper board 11 and the lower surface of the lower board 12 are both provided with a fitting groove 13, the upper surfaces of the arc-shaped cable supporting board 7, the upper board 11, the lower board 12 and the fitting groove 13 are all provided with connecting holes in a penetrating way, the hoisting bolts 6 penetrate through the corresponding connecting holes to fix the arc-shaped cable supporting board 7, the upper board 11 and the lower board 12 together, the rear surface of the upper board 11 and the front surface of the lower board 12 are both symmetrically and fixedly provided with a transfer block 14, the lower surface of the vertical board 2 is both fixedly provided with a transfer shaft 23, and the transfer shaft 23 is rotatably installed between the front and rear corresponding transfer blocks 14;

When the vertical plate 2 and the combined plate 1 are required to be separated and replaced, only the lifting bolts 6 are required to be detached, the upper plate 11 and the lower plate 12 are required to be moved outwards, the transfer blocks 14 are separated from the transfer shafts 23 of the vertical plate 2, and when the vertical plate 2 and the combined plate 1 are installed in a rotating manner, the transfer shafts 23 of the vertical plate 2 are firstly arranged between the two corresponding transfer blocks 14, then the upper plate 11 and the lower plate 12 are spliced together by the laminating grooves 13, and then the arc-shaped cable supporting plate 7, the upper plate 11 and the lower plate 12 are fixed together by the lifting bolts 6;

When the arc-shaped cable supporting plate 7 is required to be separated from the combined plate 1 for replacement, the replacement can be performed only after the lifting bolt 6 is detached.

In addition, in order to strengthen the supporting strength of the J-shaped supporting plate 21, as shown in fig. 2, reinforcing plates 211 are fixedly installed between the vertical plates 2 and the corresponding J-shaped supporting plates 21, and triangular supports are formed between the reinforcing plates 211 and the vertical plates 2 and the J-shaped supporting plates 21 after the reinforcing plates 211 are installed, so that the supporting strength of the J-shaped supporting plates 21 can be effectively strengthened.

Finally, in order to ensure the assembly strength between the upper plate 11, the lower plate 12 and the arc-shaped cable supporting plate 7, as shown in fig. 1, four lifting bolts 6 are required to be symmetrically arranged at four corners of the composite plate 1 in a penetrating manner, the four lifting bolts 6 are supporting points of the integral structure of the composite plate 1, and the lifting bolts 6 are firmly fixed at the positions, so that the composite plate 1 can be kept stable when being subjected to external force, the risk of deformation or damage is reduced, and the stability of the integral structure is improved.

Claims (5)

1. The utility model provides a crown block holds in palm cable coaster, includes composite board (1), its characterized in that, the lower surface of composite board (1) is through hoist and mount bolt (6) fixed mounting has arc cable board (7), the upper surface rotation of composite board (1) is installed two riser (2), two equal fixed mounting in opposite face lower part of riser (2) has J type to support tight board (21), two the opposite face laminating of J type to support tight board (21) is in the same place, two fixed mounting has stock bolt (22) between riser (2), stock bolt (22) run through two J type to support tight board (21), two all rotate through bolt shaft (3) on opposite face upper portion of riser (2) and install a plurality of pulleys (4), all centre gripping between pulley (4) and the corresponding riser (2) is installed pressure bearing (5), bolt shaft (3) run through corresponding pressure bearing (5).

2. The crown block cable supporting pulley according to claim 1, wherein the combined plate (1) comprises an upper plate (11) and a lower plate (12), the upper surface of the upper plate (11) and the lower surface of the lower plate (12) are respectively provided with a fitting groove (13), connecting holes are respectively formed in the upper surfaces of the arc cable supporting plate (7), the upper plate (11), the lower plate (12) and the fitting grooves (13) in a penetrating mode, and the arc cable supporting plate (7), the upper plate (11) and the lower plate (12) are fixed together through the corresponding connecting holes by the aid of the hoisting bolts (6).

3. The overhead travelling crane cable supporting pulley according to claim 2, wherein the rear surface of the upper plate (11) and the front surface of the lower plate (12) are symmetrically and fixedly provided with the switching blocks (14), the lower surface of the vertical plate (2) is fixedly provided with the switching shaft (23), and the switching shaft (23) is rotatably arranged between the front and rear corresponding switching blocks (14).

4. The crown block cable supporting pulley according to claim 1, wherein a reinforcing plate (211) is fixedly installed between the vertical plate (2) and the corresponding J-shaped supporting plate (21).

5. The crown block cable supporting pulley according to claim 2, wherein the number of the assembly of the hoisting bolts (6) is four, and the four hoisting bolts (6) are symmetrically arranged at four corners of the combined board (1) in a penetrating way.