CN213011630U - Crossbeam hoist for building - Google Patents

Abstract

The utility model belongs to the hoisting field, in particular to a cross beam hanger for buildings, which comprises a cross beam, a shaft A, a volute spiral spring A, a winding wheel A, a steel wire A, a hanging block, a hanging ring, a winding wheel B, a steel wire B, U type slide seat, a winding wheel C, a volute spiral spring B, a steel wire C, a fixed pulley, a winding wheel D, a steel wire D and a hook, wherein two shafts A are symmetrically and rotationally matched at two ends in the cross beam, and the volute spiral spring A which is rotationally reset to the shaft A is arranged between the shaft A and the cross beam; when the utility model provides a when one side steel wire A breaks off, winding wheel A that non-cracked steel wire A belonged to drives U type slide to cracked steel wire A one side quick slip through a series of transmissions, and U type slide drives one end quick motion to cracked steel wire A department of steel wire C winding on winding wheel C and forms effective replenishment to cracked steel wire A for the crossbeam resumes its horizontality fast in the very short time after the unexpected fracture of unilateral steel wire A and keeps the effective hoist and mount to the object of hanging.

Description

Crossbeam hoist for building

Technical Field

The utility model belongs to the hoist and mount field especially relates to a crossbeam hoist for building.

Background

Beam spreaders are often used in the field of lifting due to their triangular stability. In use, in order to improve the safety of the beam lifting appliance, the safety coefficient of the two steel wires on the two sides of the beam lifting appliance is higher. However, if one side of the steel wire is damaged by falling objects or goods during idle period when the steel wire is placed on the ground, sudden breakage may occur during hoisting, and the steel wire in the other side of the steel wire in the hoisting state may break due to the swinging dynamic load generated by the hoisted object caused by the breakage of the steel wire at one side and exceed the load corresponding to the safety factor.

The utility model relates to a crossbeam hoist for building can establish reliable and stable hoist and mount again rapidly when the unexpected fracture takes place for the unilateral steel wire is very necessary.

The utility model relates to a crossbeam hoist for building solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned defect among the prior art, the utility model discloses a crossbeam hoist for building, it adopts following technical scheme to realize.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the equipment or element indicated must have a specific position, be constructed or operated in a specific position, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A cross beam hanger for buildings comprises a cross beam, a shaft A, a volute spiral spring A, a winding wheel A, a steel wire A, a hanging block, a hanging ring, a winding wheel B, a steel wire B, U type sliding seat, a winding wheel C, a volute spiral spring B, a steel wire C, a fixed pulley, a winding wheel D, a steel wire D and a hook, wherein two ends in the cross beam are symmetrically and rotatably matched with the two shafts A, and the volute spiral spring A which is rotatably reset to the shaft A is arranged between the shaft A and the cross beam; two winding wheels A are symmetrically arranged on the two shafts A, and a steel wire A wound on each winding wheel A penetrates through the cross beam and is connected with the hanging block; the two winding wheels a rotate in opposite directions under the pull of the respective wires a.

Two winding wheels B are installed on the two shafts A in a staggered mode, and mutual interference of two steel wires B respectively wound on the two winding wheels B is avoided. Two steel wires B respectively wound on the two winding wheels B are respectively connected with two sides of a U-shaped sliding seat sliding on the upper surface of the cross beam along the length direction of the cross beam through the guide of a plurality of fixed pulleys arranged on the cross beam. The tie point of steel wire B on U type slide and the winding wheel B at steel wire B place distribute in U type slide both sides, guarantee when winding wheel B twines corresponding steel wire B, the U type slide that is drawn by winding steel wire B slides to the direction of keeping away from this steel wire B place winding wheel B, and then guarantee that U type slide drives on the steel wire C that twines one end on winding wheel C and moves and form the replenishment to cracked steel wire A one side fast, make the crossbeam still can resume its horizontality in short time under the unilateral steel wire A fracture condition, guarantee the effective hoist and mount of crossbeam to the object of hanging. Meanwhile, the unbroken steel wires A are prevented from breaking under the action of dynamic loads generated by the broken and swinging of the cross beam and the hung object due to the unilateral steel wire A. The directions of the two winding wheels B which rotate under the pulling of the corresponding steel wires B are opposite, and the direction of the winding wheels B which rotate under the pulling of the corresponding steel wires B is opposite to the direction of the coaxial winding wheels A which rotate under the pulling of the corresponding steel wires A; a winding wheel C is arranged in the U-shaped sliding seat, and a volute spiral spring B for rotationally resetting the winding wheel C is arranged between the winding wheel C and a shaft where the winding wheel C is arranged; twine steel wire C one end on winding wheel C and hang the piece and be connected, the steel wire C other end with wind wheel C installation on the cylinder be used for preventing fast and break away from winding wheel C's steel wire C completely and take place to collapse disconnected buffer structure and be connected.

Two winding wheels D are symmetrically arranged on the two shafts A, and two ends of the steel wire D are respectively wound on the two winding wheels D; the direction of the two winding wheels D rotating under the pulling of the corresponding steel wire D is opposite to the direction of the coaxial winding wheel A rotating under the pulling of the corresponding steel wire A; the two ends of the steel wire D are respectively connected with a buffer structure which is arranged on the winding cylindrical surface of the corresponding winding wheel C and used for preventing the steel wire D which is quickly and completely separated from the winding wheel D from breaking.

The crossbeam is provided with a limiting structure matched with the U-shaped sliding seat which reaches the limiting positions of the middle part and two ends of the crossbeam; the top end of the lifting block is provided with a lifting ring matched with lifting equipment, and the lower end surface of the cross beam is uniformly provided with a plurality of hooks matched with a lifted object.

As a further improvement of the technology, two volute spiral springs A are nested on the shaft A, and the volute spiral springs A are positioned in annular grooves A on the inner wall of a circular groove which is rotationally matched with the shaft A on the cross beam. The annular groove A provides an installation space for the scroll spring A, and the extra occupied space of the scroll spring A on the shaft A is reduced, so that the equipment structure is more compact. One end of the volute spiral spring A is connected with the inner wall of the corresponding annular groove A, and the other end of the volute spiral spring A is connected with the corresponding shaft A; the scroll spring B is positioned in a ring groove B on the inner wall of the winding wheel C. The annular groove B provides installation space for the volute spiral spring, and reduces the extra occupied space of the volute spiral spring B on the shaft where the winding wheel C is located, so that the equipment structure is more compact. One end of the volute spiral spring B is connected with the inner wall of the ring groove B, and the other end of the volute spiral spring B is connected with a shaft where the winding wheel C is located.

As a further improvement of the technology, the diameter ratio of the winding wheel B to the winding wheel a is greater than 1, when the steel wire a on one side is accidentally broken, the beam and the suspended object are subjected to a dynamic load generated by swinging to pull the other steel wire a still in a working state to rotate the shaft a on which the corresponding winding wheel a is located relative to the beam, and the shaft a on one side of the unbroken steel wire a drives the winding wheel B mounted thereon to synchronously rotate. The diameter ratio of the winding wheel B to the winding wheel A is larger than 1, so that the rotating linear speed of the winding cylindrical surface on the winding wheel B on one side of the unbroken steel wire A is far larger than that of the winding cylindrical surface on the coaxial winding wheel A, the winding wheel B on one side of the unbroken steel wire A can quickly wind the steel wire B wound on the winding wheel B, the steel wire B wound on the winding wheel C through the U-shaped sliding seat can quickly bring one end of the steel wire C to one side of the broken steel wire A and effectively supplement the broken steel wire A, the horizontal state of the cross beam can still be recovered within a short time under the condition that the single-side steel wire A breaks, effective hoisting of the cross beam on a hoisted object is guaranteed, and meanwhile, the unbroken steel wire A is prevented from breaking under the action of dynamic loads generated by breaking and swinging of the cross beam and the hoisted object due to the single-side steel wire A.

As a further improvement of the technology, the U-shaped sliding seat is provided with a trapezoidal guide block which slides in a trapezoidal guide groove on the upper surface of the cross beam. The matching of the trapezoidal guide groove and the trapezoidal guide block plays a role in positioning and guiding the sliding of the U-shaped sliding seat on the cross beam. The holding tank that holds cracked steel wire A is seted up to trapezoidal guide slot bottom, and after one side steel wire A broke, along with U type slide slides to cracked steel wire A one side under one side steel wire B's pulling, cracked steel wire A gets into the holding tank and does not form the interference to the motion of trapezoidal guide block in trapezoidal guide slot under the effect of the U type slide of motion. Two steel wires A respectively wound on the two winding wheels A respectively penetrate through two sliding grooves C on the cross beam.

As a further improvement of the technology, two sliding chutes A communicated with the inside of the beam are symmetrically formed at two ends of the bottom of the trapezoidal guide groove; a limiting block B matched with the trapezoidal guide block vertically slides in each sliding groove A; the upper end of the limiting block B is provided with a trigger inclined plane which allows the trapezoidal guide block to reach the limit position of the trapezoidal guide groove; the limiting block B is nested with a spiral spring C for resetting the limiting block B; the middle part of the trapezoidal guide groove is provided with a sliding groove B communicated with the inside of the cross beam; a limiting block A matched with the limiting groove on the trapezoidal guide block vertically slides in the sliding groove B; the upper end of the limiting block A is provided with a sharp corner which allows the trapezoidal guide block to slide towards two sides; and the limiting block A is nested with a spiral spring A for resetting the limiting block A. The limiting block A limits the U-shaped sliding seat to the middle part of the cross beam under the condition that the U-shaped sliding seat is not affected by external force.

As a further improvement of the technology, the part of the limiting block A, which is positioned in the beam, is nested with a ring sleeve A, and the lower end of the limiting block A is provided with a tension spring plate A; the spiral spring A is nested at the outer side of the corresponding ring sleeve A; one end of the spiral spring A is connected with the tension spring plate A, and the other end of the spiral spring A is connected with the inner wall of the cross beam; the part of the limiting block B, which is positioned in the beam, is nested with a ring sleeve B, and the lower end of the limiting block B is provided with a tension spring plate B; the spiral spring C is nested at the outer side of the corresponding ring sleeve B; one end of a spiral spring C is connected with the tension spring plate B, and the other end of the spiral spring C is connected with the inner wall of the cross beam.

As a further improvement of the technology, an n-shaped groove a is formed on a winding cylindrical surface of the winding wheel C, and an n-shaped block a radially slides in the n-shaped groove a; the n-shaped block A is connected with one end of the steel wire C; two spiral springs B for resetting the n-type block A are symmetrically arranged in the n-type groove A; one end of the spiral spring B is connected with the inner wall of the n-shaped groove A, and the other end of the spiral spring B is connected with one end of the n-shaped block A; each n-shaped block A is symmetrically provided with two guide blocks A, and the two guide blocks A respectively slide in two guide grooves A on the inner wall of the corresponding n-shaped groove A; an n-shaped groove B is formed in the winding cylindrical surface of the winding wheel D, and an n-shaped block B slides in the n-shaped groove B in the radial direction; the n-shaped block B is connected with one end of the steel wire D; two spiral springs D for resetting the n-type block B are symmetrically arranged in the n-type groove B; one end of a spiral spring D is connected with the inner wall of the n-shaped groove B, and the other end of the spiral spring D is connected with one end of the n-shaped block B; each of the n-shaped blocks B is symmetrically provided with two guide blocks B, and the two guide blocks B respectively slide in two guide grooves B on the corresponding inner wall of the n-shaped groove B.

As a further improvement of the technology, each shaft a is coaxially provided with a gear a and a gear C; the gear A is meshed with a gear B arranged in the beam, and the gear C is meshed with a gear D arranged in the beam; a shaft B where the gear B is located is in rotary fit with a support A arranged in the cross beam, and a shaft C where the gear D is located is in rotary fit with the support B arranged in the cross beam; a pressing wheel A is arranged on the shaft B, and an elastic ring pad A matched with a steel wire D wound on a winding wheel D is nested on the pressing wheel A; and a pressing wheel B is arranged on the shaft C, and an elastic ring pad B matched with the steel wire B wound on the winding wheel B is nested on the pressing wheel B. The elastic ring pad A restrains the corresponding steel wire D, so that the part of the steel wire D wound on the winding wheel D can not be separated from the corresponding winding wheel D due to disorder. The elastic ring pads B restrain the corresponding steel wires B, so that the parts of the steel wires B wound on the winding wheels B can not be separated from the corresponding winding wheels B due to scattering.

For traditional crossbeam hoist, work as the utility model provides a when one side steel wire A breaks off, the winding wheel A at non-cracked steel wire A place drives U type slide to cracked steel wire A one side quick slip through a series of transmissions, and U type slide drives one end quick motion to cracked steel wire A department and to the formation of cracked steel wire A effective replenishment of steel wire C winding on winding wheel C for the crossbeam resumes its horizontality fast in the very short time after the unexpected fracture of unilateral steel wire A and keeps the effective hoist and mount to the object of hanging. Meanwhile, the steel wire A which is not broken is prevented from breaking under the action of the dynamic load generated by the broken and swinging of the cross beam and the hung object due to the single-side steel wire A, the object is guaranteed to be hung continuously, and the hoisting efficiency is improved. The utility model discloses simple structure has better result of use.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention.

FIG. 2 is a schematic cross-sectional view of the cross beam, the shaft A, the winding wheel B, the elastic ring pad B, the pinch roller B, the shaft C, the gear D, the gear C, the gear A, the gear B, the shaft B, the pinch roller A, the elastic ring pad A and the winding wheel D.

Fig. 3 shows two schematic cross-sectional views of a U-shaped carriage, a wire B and two winding wheels B.

Fig. 4 is a schematic cross-sectional view of the beam and two stoppers B. Fig. 4a is another schematic cross-sectional view of the beam and two stoppers B.

Fig. 5 is a schematic cross-sectional view of the U-shaped slide, the trapezoidal guide block, and the stopper a.

FIG. 6 is a cross-sectional view of the U-shaped slider, the spiral spring B and the winding wheel C.

Figure 7 is a schematic cross-sectional view of a winding wheel C, n type block a in combination with a steel wire C from a perspective. Figure 7a is a schematic cross-sectional view of a winding wheel C, n, type a, with a steel wire C engaged from another perspective.

Fig. 8 is a schematic structural view of the winding wheel C. Fig. 8a is a schematic cross-sectional view from one perspective of a winding wheel C. FIG. 8b is a cross-sectional view of another perspective of the winding wheel C

Fig. 9 is a schematic cross-sectional view of the winding wheel D and the steel wire D.

Fig. 10 is a schematic cross-sectional view of winding wheel D, n type block B in cooperation with steel wire D from a perspective. Figure 10a is a schematic cross-sectional view of a winding wheel D, n type block B with a steel wire D from another perspective.

Fig. 11 is a perspective view of the winding wheel D. Fig. 11a is a schematic cross-sectional view of a winding wheel D from one perspective. Fig. 11b is a schematic cross-sectional view of another perspective of winding wheel D.

FIG. 12 is a schematic view of the drive relationship within the beam.

FIG. 13 is a cross-sectional view of the assembly of the winding wheel B, the steel wire B, the elastic ring pad B and the pressing wheel B.

FIG. 14 is a cross-sectional view of the combination of the winding wheel D, the steel wire D, the elastic ring pad A and the pressing wheel A.

Fig. 15 is a schematic perspective view of the cross member. Fig. 15a is a schematic cross-sectional view from one perspective of a beam. Fig. 15b is a schematic cross-sectional view from another perspective of the beam.

Number designation in the figures: 1. a cross beam; 2. a trapezoidal guide groove; 3. a chute A; 4. a chute B; 5. accommodating grooves; 6. a chute C; 7. a circular groove; 8. a ring groove A; 9. an axis A; 10. a volute spiral spring A; 11. a winding wheel A; 12. a steel wire A; 13. a hanging block; 14. a hoisting ring; 15. a winding wheel B; 16. a steel wire B; 17. a U-shaped slide seat; 18. a trapezoidal guide block; 19. a limiting groove; 20. a limiting block A; 21. sharp corners; 22. a coil spring A; 23. a tension spring plate A; 24. a ring sleeve A; 25. a winding wheel C; 26. n-shaped groove A; 27. a guide groove A; 28. a ring groove B; 29. an n-type block A; 30. a guide block A; 31. a coil spring B; 32. a volute spiral spring B; 33. a steel wire C; 34. a fixed pulley; 35. a limiting block B; 36. triggering the inclined plane; 37. a coil spring C; 38. a tension spring plate B; 39. a ring sleeve B; 40. a winding wheel D; 41. an n-shaped groove B; 42. a guide groove B; 43. an n-type block B; 44. a guide block B; 45. a coil spring D; 46. a steel wire D; 47. a gear A; 48. a gear B; 49. a shaft B; 50. a support A; 51. a pinch roller A; 52. an elastic ring pad A; 53. a gear C; 54. a gear D; 55. an axis C; 56. a support B; 57. a pinch roller B; 58. an elastic ring pad B; 59. and (4) hanging hooks.

Detailed Description

The attached drawings are schematic diagrams of the implementation of the present invention in order to understand the structural operation principle. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1 and 2, it includes a cross beam 1, a shaft a9, a volute spiral spring a10, a winding wheel a11, a steel wire a12, a hanging block 13, a hanging ring 14, a winding wheel B15, a steel wire B16, a U-shaped sliding seat 17, a winding wheel C25, a volute spiral spring B32, a steel wire C33, a fixed pulley 34, a winding wheel D40, a steel wire D46, and a hook 59, wherein as shown in fig. 1, 2, and 3, two shafts a9 are symmetrically and rotatably fitted at two ends in the cross beam 1, and a volute spiral spring a10 which is rotatably reset to the shaft a9 is installed between the shaft a9 and the cross beam 1; as shown in fig. 1, 2 and 12, two winding wheels a11 are symmetrically mounted on two shafts a9, and a steel wire a12 wound on each winding wheel a11 penetrates through the cross beam 1 and is connected with the hanging block 13; the two winding wheels a11 rotate in opposite directions under the pull of the corresponding wire a 12.

As shown in fig. 2 and 12, two winding wheels B15 are mounted on the two shafts a9 in a staggered manner to prevent the two wires B16 wound around the two winding wheels B15 from interfering with each other. As shown in fig. 2, 3 and 12, two wires B16 wound around two winding wheels B15 are guided by fixed pulleys 34 mounted on the beam 1 and connected to both sides of a U-shaped slide 17 sliding on the upper surface of the beam 1 in the longitudinal direction of the beam 1. The connection point of the steel wire B16 on the U-shaped sliding seat 17 and the winding wheel B15 where the steel wire B16 is located are distributed on two sides of the U-shaped sliding seat 17, so that when the winding wheel B15 winds the corresponding steel wire B16, the U-shaped sliding seat 17 pulled by the wound steel wire B16 slides in the direction away from the winding wheel B15 where the steel wire B16 is located, and further the U-shaped sliding seat 17 drives one end, wound on the winding wheel C25, of the steel wire C33 to rapidly move towards one side of the broken steel wire A12 and supplement the broken steel wire A12, so that the horizontal state of the beam 1 can be recovered within a short time under the condition that the single-side steel wire A12 is broken, and the beam 1 is guaranteed to be effectively hoisted to hung objects. Meanwhile, the unbroken steel wire A12 is ensured not to be broken under the action of the dynamic load generated by the broken swing of the single-side steel wire A12 of the beam 1 and the hung object. The two winding wheels B15 rotate in opposite directions under the pull of the respective steel wire B16, and winding wheel B15 rotates under the pull of the respective steel wire B16 in opposite directions of rotation of the coaxial winding wheel a11 under the pull of the respective steel wire a 12; as shown in fig. 5, 6 and 12, a winding wheel C25 is installed in the U-shaped sliding seat 17, and a spiral spring B32 for rotationally resetting the winding wheel C25 is installed between the winding wheel C25 and the shaft; as shown in fig. 3, 6 and 7, one end of the steel wire C33 wound around the winding wheel C25 is connected to the hanger block 13, and the other end of the steel wire C33 is connected to a buffer structure installed on the winding cylinder of the winding wheel C25 for preventing the steel wire C33, which is rapidly and completely separated from the winding wheel C25, from being broken.

As shown in fig. 9 and 12, two winding wheels D40 are symmetrically mounted on the two shafts a9, and two ends of the steel wire D46 are respectively wound on the two winding wheels D40; the two winding wheels D40 rotate in opposite directions under the pull of the respective wire D46, and the winding wheel D40 rotates under the pull of the respective wire D46 in opposite directions of the rotation of the coaxial winding wheel a11 under the pull of the respective wire a 12; as shown in fig. 10, both ends of the steel wire D46 are respectively connected to buffer structures installed on the winding cylinder of the corresponding winding wheel C25 for preventing the breakage of the steel wire D46 which is rapidly and completely separated from the winding wheel D40.

As shown in fig. 3, 4a and 5, the beam 1 is provided with a limit structure matched with a U-shaped sliding seat 17 reaching the middle part of the beam 1 and the limit positions at the two ends of the beam 1; as shown in fig. 1 and 3, a lifting ring 14 matched with a lifting device is installed at the top end of the lifting block 13, and a plurality of hooks 59 matched with a lifted object are evenly installed on the lower end surface of the cross beam 1.

As shown in fig. 2, 15a and 15b, two scroll springs a10 are nested and mounted on the shaft a9, and the scroll spring a10 is located in a circular groove A8 on the inner wall of the circular groove 7 of the cross beam 1, which is rotatably matched with the shaft a 9. The ring groove A8 provides installation space for the scroll spring A10, and reduces the space occupied by the scroll spring A10 on the shaft A9, so that the device structure is more compact. One end of the scroll spring A10 is connected with the inner wall of the corresponding ring groove A8, and the other end is connected with the corresponding shaft A9; as shown in FIGS. 6 and 8, scroll spring B32 is seated in groove B28 on the inner wall of winding wheel C25. The ring groove B28 provides installation space for the scroll spring, and reduces the extra space occupied by the scroll spring B32 on the shaft of the winding wheel C25, so that the device structure is more compact. One end of scroll spring B32 is connected with the inner wall of ring groove B28, and the other end is connected with the shaft of winding wheel C25.

As shown in fig. 2 and 12, the diameter ratio of the winding wheel B15 to the winding wheel a11 is greater than 1, when the steel wire a12 on one side is accidentally broken, the beam 1 and the suspended object are swung to generate a dynamic load, so that the other steel wire a12 still in an operating state pulls the shaft a9 of the corresponding winding wheel a11 to rotate relative to the beam 1, and the shaft a9 on the side of the unbroken steel wire a12 drives the winding wheel B15 mounted thereon to rotate synchronously. Since the diameter ratio of winding wheel B15 to winding wheel a11 is greater than 1, the rotational linear velocity of the winding cylinder on winding wheel B15 on the side of unbroken wire a12 is much greater than the rotational linear velocity of the winding cylinder on coaxial winding wheel a11, so that the winding wheel B15 at one side of the unbroken steel wire A12 winds the steel wire B16 wound thereon rapidly, the rapidly wound steel wire B16 brings the end of the steel wire C33 wound on the winding wheel C25 to one side of the broken steel wire A12 rapidly through the U-shaped sliding seat 17 and forms effective supplement to the broken steel wire A12, so that the beam 1 can still recover the horizontal state within a short time under the condition that the steel wire A12 on one side is broken, the beam 1 can be ensured to effectively hoist the hoisted object, meanwhile, the unbroken steel wire A12 is prevented from breaking under the action of the dynamic load generated by the breaking and swinging of the cross beam 1 and the hung object due to the single-side steel wire A12.

As shown in fig. 5, 6, 15a and 15b, a trapezoidal guide block 18 is mounted on the U-shaped slide carriage 17, and the trapezoidal guide block 18 slides in the trapezoidal guide groove 2 on the upper surface of the cross beam 1. The matching of the trapezoid guide groove 2 and the trapezoid guide block 18 plays a positioning and guiding role for the sliding of the U-shaped sliding seat 17 on the cross beam 1. The bottom of the trapezoidal guide groove 2 is provided with a containing groove 5 for containing the broken steel wire A12, and after the one side steel wire A12 is broken, the broken steel wire A12 enters the containing groove 5 under the action of the moving U-shaped slide carriage 17 without interfering the movement of the trapezoidal guide block 18 in the trapezoidal guide groove 2 along with the sliding of the U-shaped slide carriage 17 towards the broken steel wire A12 under the pulling of the one side steel wire B16. As shown in fig. 1, 15a and 15b, two steel wires a12 wound around two winding wheels a11 pass through two sliding grooves C6 of the cross beam 1.

As shown in fig. 4, 4a, 15a, 15b, two sliding chutes a3 are symmetrically formed at two ends of the bottom of the trapezoidal guide groove 2 and are communicated with the inside of the cross beam 1; a limit block B35 matched with the trapezoidal guide block 18 vertically slides in each sliding groove A3; the upper end of the limiting block B35 is provided with a triggering inclined plane 36 which allows the trapezoidal guide block 18 to reach the limit position of the trapezoidal guide groove 2; a limiting block B35 is nested with a coil spring C37 for resetting the limiting block B; as shown in fig. 5, 15a and 15B, a sliding groove B4 communicated with the inside of the beam 1 is formed in the middle of the trapezoidal guide groove 2; a limiting block A20 matched with a limiting groove 19 on the trapezoidal guide block 18 vertically slides in the sliding groove B4; the upper end of the limiting block A20 is provided with a sharp corner 21 which allows the trapezoidal guide block 18 to slide towards two sides; the limiting block A20 is nested with a coil spring A22 for resetting the limiting block A. The limiting block A20 limits the U-shaped sliding seat 17 to the middle part of the beam 1 under the condition that the U-shaped sliding seat 17 is not acted by external force.

As shown in fig. 5, the part of the limiting block a20 located in the beam 1 is nested with a ring sleeve a24, and the lower end of the limiting block a20 is provided with a tension spring plate a 23; the coil springs A22 are nested outside the corresponding ring sleeves A24; one end of a spiral spring A22 is connected with a tension spring plate A23, and the other end is connected with the inner wall of the beam 1; as shown in fig. 4, a part of the limiting block B35, which is located inside the beam 1, is nested with a ring sleeve B39, and the lower end of the limiting block B35 is provided with a tension spring plate B38; the coil springs C37 are nested outside the corresponding ring sleeves B39; one end of a spiral spring C37 is connected with the tension spring plate B38, and the other end is connected with the inner wall of the cross beam 1.

As shown in fig. 7, 7a, 8a and 8b, the winding cylindrical surface of the winding wheel C25 is provided with an n-shaped groove a26, and an n-shaped block a29 slides in the n-shaped groove a26 in the radial direction; the n-shaped block A29 is connected with one end of a steel wire C33; two coil springs B31 for resetting the n-type block A29 are symmetrically arranged in the n-type groove A26; one end of a spiral spring B31 is connected with the inner wall of the n-shaped groove A26, and the other end of the spiral spring B31 is connected with one end of an n-shaped block A29; each n-shaped block A29 is symmetrically provided with two guide blocks A30, and the two guide blocks A30 respectively slide in two guide grooves A27 on the corresponding inner wall of the n-shaped groove A26; as shown in fig. 10, 10a, 11a and 11B, an n-shaped groove B41 is formed on the winding cylindrical surface of the winding wheel D40, and an n-shaped block B43 is radially slid in the n-shaped groove B41; the n-shaped block B43 is connected with one end of a steel wire D46; two coil springs D45 for resetting the n-type block B43 are symmetrically arranged in the n-type groove B41; one end of a spiral spring D45 is connected with the inner wall of the n-shaped groove B41, and the other end of the spiral spring D45 is connected with one end of an n-shaped block B43; each of the n-shaped blocks B43 is symmetrically provided with two guide blocks B44, and the two guide blocks B44 slide in two guide grooves B42 on the corresponding inner wall of the n-shaped groove B41 respectively.

As shown in fig. 12, 13 and 14, each of the shafts a9 has a gear a47 and a gear C53 coaxially mounted thereon; as shown in fig. 2 and 12, the gear a47 is meshed with the gear B48 installed in the beam 1, and the gear C53 is meshed with the gear D54 installed in the beam 1; a shaft B49 on which the gear B48 is arranged is rotationally matched with a support A50 arranged in the cross beam 1, and a shaft C55 on which the gear D54 is arranged is rotationally matched with a support B56 arranged in the cross beam 1; a pressure wheel A51 is arranged on the shaft B49, and an elastic annular pad A52 matched with a steel wire D46 wound on a winding wheel D40 is nested on the pressure wheel A51; a pressure wheel B57 is arranged on the shaft C55, and an elastic annular pad B58 matched with a steel wire B16 wound on a winding wheel B15 is nested on the pressure wheel B57. The elastic ring pad a52 restrains the corresponding steel wire D46 so that the portion of the steel wire D46 wound around the winding wheel D40 does not get out of the corresponding winding wheel D40 due to scattering. The elastic ring pad B58 restrains the corresponding steel wire B16 so that the portion of the steel wire B16 wound around the winding wheel B15 does not get out of the corresponding winding wheel B15 due to scattering.

The utility model discloses the ratio of well elastic ring pad A52's external diameter and the diameter of winding wheel B15 winding cylinder equals the ratio of gear D54 and gear C53, gear A47 and gear B48's diameter ratio equals the ratio of the diameter of winding wheel D40 winding cylinder and elastic ring pad A52's external diameter, make the rotatory linear velocity of elastic ring pad A52 outer cylinder equal with the rotatory linear velocity of corresponding winding wheel D40 winding cylinder, the rotatory linear velocity of elastic ring pad B58 outer cylinder equals with the rotatory linear velocity of corresponding winding wheel B15 winding cylinder. The elastic ring pad a52 effectively binds the wire D46 wound around the winding wheel D40 to the winding wheel D40 while rotating with the corresponding winding wheel D40, ensuring that the portion of the wire D46 bound to the winding wheel D40 by the elastic ring pad a52 and wound around the winding wheel D40 is not scattered to be separated from the winding wheel D40 when the portion of the wire D46 between the two winding wheels D40 is in a relaxed state. Elastic ring pad B58 effectively binds wire B16 wound around winding wheel B15 to winding wheel B15 while rotating with corresponding winding wheel B15, preventing wire B16 from being scattered during the process of unwinding wire B16 wound around winding wheel B15 or wound around corresponding winding wheel B15 from corresponding winding wheel B15, thereby failing to effectively complete winding or unwinding of wire B16.

The utility model discloses a work flow: in the initial state, the lifting ring 14 is hung on a lifting hook of the lifting device, the cross beam 1 is in a horizontal state, and the two steel wires A12 are in a tight state and form pulling on two ends of the cross beam 1. The U-shaped sliding seat 17 is positioned at the middle position of the cross beam 1, and the steel wire C33 is in a tight state. Both scroll spring A10 and scroll spring B32 are in a compressed state. The steel wire D46 and both steel wires B16 were under tension. The steel wire D46 in its taut state keeps the two shafts a9 stationary under the pull of the two steel wires a12, thereby keeping the two scroll springs a10 in a pre-compressed state and still having room to continue to be compressed further.

In the initial state, a plurality of coils of steel wires a12 are respectively wound on the two winding wheels a11, a plurality of coils of steel wires B16 are respectively wound on the two winding wheels B15, and a plurality of coils of steel wires C33 are wound on the winding wheels C25. The steel wires D46 with equal right turns are wound on the two winding wheels D40, so that when any one steel wire A12 of the two steel wires A12 is broken, the unbroken steel wire A12 drives the U-shaped sliding seat 17 through a series of transmission to reach one side of the broken steel wire A12, the steel wire D46 wound on the winding wheel D40 at one side of the broken steel wire A12 is just completely separated from the winding wheel D40, and a buffer structure on the winding wheel D40, which is completely released by the steel wire D46 wound on the steel wire A12, can effectively buffer the impact of the dynamic load generated by the swing of the cross beam 1 due to the breakage of the steel wire A12 at one side on the unbroken steel wire A12, and the unbroken steel wires A12 and D46 are prevented from being broken by the dynamic load generated by the cross beam 1. The coil spring A22 and the coil spring C37 are always in a tension energy storage state. The U-shaped sliding seat 17 is positioned in the middle of the beam 1, and the sharp corner 21 on the limiting block A20 is inserted into the limiting groove 19 on the trapezoidal guide block 18 to temporarily limit the U-shaped sliding seat 17. The coil spring B31 and the coil spring D45 are both in a tension energy storage state, the n-type block A29 is completely positioned in the corresponding n-type groove A26, and the n-type block B43 is completely positioned in the corresponding n-type groove B41.

When the utility model discloses when the unexpected fracture of unilateral steel wire A12 takes place at hoist and mount object in-process, under the dynamic load effect of crossbeam 1 gravity and crossbeam 1 because of the fracture production of unilateral steel wire A12, unbroken steel wire A12 pulls its winding wheel A11 rotatory, unbroken steel wire A12 winding wheel A11 drives coaxial winding wheel B15 and winding wheel D40 synchronous revolution through corresponding axle A9, two spiral spring A10 on axle A9 of unbroken steel wire A12 winding wheel A11 place are by further compression energy storage. Since the diameter ratio of winding wheel B15 to winding wheel a11 is greater than 1, the rotational linear velocity of the winding cylinder on winding wheel B15 on the side of unbroken wire a12 is much greater than the rotational linear velocity of the winding cylinder on coaxial winding wheel a11, so that the winding wheel B15 at one side of the unbroken steel wire A12 winds the steel wire B16 wound on the winding wheel quickly, the quickly wound steel wire B16 brings one end of the steel wire C33 wound on the winding wheel C25 to one side of the broken steel wire A12 quickly through the U-shaped sliding seat 17 and forms quick and effective supplement to the broken steel wire A12, so that the beam 1 can still quickly recover the horizontal state within a short time under the condition that the steel wire A12 on one side is broken, the beam 1 can be ensured to continuously and effectively hoist the hoisted object, meanwhile, the unbroken steel wire A12 is prevented from breaking under the action of the dynamic load generated by the breaking and swinging of the cross beam 1 and the hung object due to the single-side steel wire A12.

During the movement of the broken steel wire A12 side on the U-shaped sliding seat 17, the steel wire C33 pulls the winding wheel C25 to rotate, the winding wheel C25 releases the steel wire C33 wound on the winding wheel C25, and the spiral spring B32 is further compressed to store energy. Meanwhile, the winding wheel D40, which is coaxial with the winding wheel a11 around which the unbroken steel wire a12 is wound, winds the steel wire D46, the steel wire D46 drives the winding wheel D40 on the broken steel wire a12 side to rotate synchronously, and the winding wheel D40 on the broken steel wire a12 side drives the coaxial winding wheel a11 and the winding wheel B15 to rotate synchronously through the corresponding shaft a 9. The winding wheel A11 on one side of the broken steel wire A12 winds and recovers the broken steel wire A12, the winding wheel B15 on one side of the broken steel wire A12 releases the steel wire B16 wound on the winding wheel, so that the U-shaped sliding seat 17 is not hindered by the steel wire B16 on the other side in the process of sliding to one side of the broken steel wire A12, and the released steel wire B16 is pulled by the U-shaped sliding seat 17 along with the movement of the U-shaped sliding seat 17 and is always in a stretched straight state. The two spiral springs a10 on the shaft a9 on one side of the broken steel wire a12 release energy.

When the U-shaped sliding seat 17 moves, a limiting groove 19 at the bottom of a trapezoidal guide block 18 arranged on the U-shaped sliding seat 17 interacts with a sharp corner 21 on a limiting block A20, so that the limiting block A20 contracts into a corresponding sliding groove B4 and limits the contact of the U-shaped sliding seat 17, and the spiral spring A22 is further stretched to store energy. When the trapezoidal guide block 18 is separated from the limit block A20, the limit block A20 is reset instantly under the reset action of the spiral spring A22.

When the U-shaped sliding seat 17 slides to the limit position of one end of the cross beam 1, a plurality of circles of steel wires C33 originally wound on the winding wheel C25 are completely separated from the winding wheel, the tail end of each steel wire C33 pulls the n-shaped block A29 to slide towards the outside of the n-shaped groove A26, and the two spiral springs B31 are further stretched to store energy, so that the dynamic load generated when the single-side steel wire A12 of the cross beam 1 is broken is effectively buffered. The steel wire C33 which is rapidly moved to one side of the broken steel wire A12 and is in a tensioned state forms rapid and effective supplement for the broken steel wire A12, so that the beam 1 forms continuous and effective hoisting for the hoisted object. Meanwhile, a plurality of circles of originally wound steel wires D46 of the winding wheel D40 on one side of the broken steel wire A12 just completely separate, the n-shaped block B43 connected with one end of the steel wire D46 pulls out of the corresponding n-shaped groove B41, and the two spiral springs D45 are further stretched to store energy, so that the tightening of the steel wire D46 and the tightening of the unbroken steel wire A12 under the action of the dynamic load of the cross beam 1 are buffered to a certain degree, and the phenomenon of breakage caused by instant tightening when the steel wire D46 and the unbroken steel wire A12 completely separate from the winding wheel D40 is avoided.

When the trapezoidal guide block 18 on the U-shaped slide carriage 17 meets the limit block B35 on the corresponding side in the process that the U-shaped slide carriage 17 reaches the limit position of one end of the beam 1, the trapezoidal guide block 18 interacts with the trigger inclined plane 36 on the limit block B35 first, so that the limit block B35 generates contraction movement into the corresponding sliding groove A3, and the corresponding coil spring C37 is further stretched to store energy. When the trapezoidal guide block 18 passes through the limit block B35, under the reset action of the coil spring C37, the trigger slope 36 end of the limit block B35 is reset instantly and limits the movement of the U-shaped sliding seat 17 to the middle of the beam 1, so that the U-shaped sliding seat 17 is kept at the position of one end of the beam 1 and does not move, and further, the steel wire C33 is ensured to effectively pull one end of one side of the broken steel wire A12 on the beam 1, and the horizontal state of the beam 1 is kept.

To sum up, the beneficial effects of the utility model are that: when the utility model provides a when one side steel wire A12 breaks, winding wheel A11 at non-cracked steel wire A12 place drives U type slide 17 through a series of transmissions and slides to cracked steel wire A12 one side fast, U type slide 17 drives one end rapid motion to cracked steel wire A12 department and forms effective replenishment to cracked steel wire A12 that steel wire C33 twined on winding wheel C25 for crossbeam 1 resumes its horizontality and keeps the effective hoist and mount to the object of hanging fast very short time after the unexpected fracture of unilateral steel wire A12. Meanwhile, the unbroken steel wire A12 is prevented from breaking under the action of the dynamic load generated by the breakage and swing of the cross beam 1 and the hung object due to the single-side steel wire A12, the object is guaranteed to be hung continuously, and the hoisting efficiency is improved.

Claims (6)

1. The utility model provides a crossbeam hoist for building which characterized in that: the steel wire winding machine comprises a cross beam, a shaft A, a volute spiral spring A, a winding wheel A, a steel wire A, a hanging block, a hanging ring, a winding wheel B, a steel wire B, U type sliding seat, a winding wheel C, a volute spiral spring B, a steel wire C, a fixed pulley, a winding wheel D, a steel wire D and a hook, wherein two ends in the cross beam are symmetrically and rotatably matched with the two shafts A, and the volute spiral spring A which is rotatably reset to the shaft A is arranged between the shaft A and the cross beam; two winding wheels A are symmetrically arranged on the two shafts A, and a steel wire A wound on each winding wheel A penetrates through the cross beam and is connected with the hanging block; the two winding wheels A rotate in opposite directions under the pulling of the corresponding steel wires A;

two winding wheels B are installed on the two shafts A in a staggered mode, and two steel wires B wound on the two winding wheels B are respectively connected with two sides of a U-shaped sliding seat sliding on the upper surface of the cross beam along the length direction of the cross beam through the guide of a plurality of fixed pulleys installed on the cross beam; the connecting point of the steel wire B on the U-shaped sliding seat and the winding wheel B where the steel wire B is located are distributed on two sides of the U-shaped sliding seat; the directions of the two winding wheels B which rotate under the pulling of the corresponding steel wires B are opposite, and the direction of the winding wheels B which rotate under the pulling of the corresponding steel wires B is opposite to the direction of the coaxial winding wheels A which rotate under the pulling of the corresponding steel wires A; a winding wheel C is arranged in the U-shaped sliding seat, and a volute spiral spring B for rotationally resetting the winding wheel C is arranged between the winding wheel C and a shaft where the winding wheel C is arranged; one end of a steel wire C wound on the winding wheel C is connected with the hanging block, and the other end of the steel wire C is connected with a buffer structure which is arranged on a winding cylindrical surface of the winding wheel C and used for preventing the steel wire C which is quickly and completely separated from the winding wheel C from breaking;

two winding wheels D are symmetrically arranged on the two shafts A, and two ends of the steel wire D are respectively wound on the two winding wheels D; the direction of the two winding wheels D rotating under the pulling of the corresponding steel wire D is opposite to the direction of the coaxial winding wheel A rotating under the pulling of the corresponding steel wire A; two ends of the steel wire D are respectively connected with a buffer structure which is arranged on the winding cylindrical surface of the corresponding winding wheel C and is used for preventing the steel wire D which is quickly and completely separated from the winding wheel D from breaking;

the crossbeam is provided with a limiting structure matched with the U-shaped sliding seat which reaches the limiting positions of the middle part and two ends of the crossbeam; the top end of the lifting block is provided with a lifting ring matched with lifting equipment, and the lower end surface of the cross beam is uniformly provided with a plurality of hooks matched with a lifted object.

2. A cross beam hanger for construction according to claim 1, wherein: two volute springs A are nested on the shaft A, and the volute springs A are positioned in a circular groove A on the inner wall of a circular groove on the cross beam, which is in rotary fit with the shaft A; one end of the volute spiral spring A is connected with the inner wall of the corresponding annular groove A, and the other end of the volute spiral spring A is connected with the corresponding shaft A; the scroll spring B is positioned in a ring groove B on the inner wall of the winding wheel C; one end of the volute spiral spring B is connected with the inner wall of the ring groove B, and the other end of the volute spiral spring B is connected with a shaft where the winding wheel C is located.

3. A cross beam hanger for construction according to claim 1, wherein: the diameter ratio of the winding wheel B to the winding wheel A is more than 1.

4. A cross beam hanger for construction according to claim 1, wherein: the U-shaped sliding seat is provided with a trapezoidal guide block which slides in a trapezoidal guide groove on the upper surface of the cross beam; the bottom of the trapezoidal guide groove is provided with a containing groove for containing the fractured steel wire A; two steel wires A respectively wound on the two winding wheels A respectively penetrate through two sliding grooves C on the cross beam.

5. A cross beam hanger for construction according to claim 1, wherein: the winding cylindrical surface of the winding wheel C is provided with an n-shaped groove A, and an n-shaped block A slides in the n-shaped groove A in the radial direction; the n-shaped block A is connected with one end of the steel wire C; two spiral springs B for resetting the n-type block A are symmetrically arranged in the n-type groove A; one end of the spiral spring B is connected with the inner wall of the n-shaped groove A, and the other end of the spiral spring B is connected with one end of the n-shaped block A; each n-shaped block A is symmetrically provided with two guide blocks A, and the two guide blocks A respectively slide in two guide grooves A on the inner wall of the corresponding n-shaped groove A; an n-shaped groove B is formed in the winding cylindrical surface of the winding wheel D, and an n-shaped block B slides in the n-shaped groove B in the radial direction; the n-shaped block B is connected with one end of the steel wire D; two spiral springs D for resetting the n-type block B are symmetrically arranged in the n-type groove B; one end of a spiral spring D is connected with the inner wall of the n-shaped groove B, and the other end of the spiral spring D is connected with one end of the n-shaped block B; each of the n-shaped blocks B is symmetrically provided with two guide blocks B, and the two guide blocks B respectively slide in two guide grooves B on the corresponding inner wall of the n-shaped groove B.

6. A cross beam hanger for construction according to claim 1, wherein: a gear A and a gear C are coaxially arranged on each shaft A; the gear A is meshed with a gear B arranged in the beam, and the gear C is meshed with a gear D arranged in the beam; a shaft B where the gear B is located is in rotary fit with a support A arranged in the cross beam, and a shaft C where the gear D is located is in rotary fit with the support B arranged in the cross beam; a pressing wheel A is arranged on the shaft B, and an elastic ring pad A matched with a steel wire D wound on a winding wheel D is nested on the pressing wheel A; and a pressing wheel B is arranged on the shaft C, and an elastic ring pad B matched with the steel wire B wound on the winding wheel B is nested on the pressing wheel B.

Images