Four-section synchronous telescopic sleeve of crane

Abstract

The utility model relates to the technical field of crane lifting, in particular to a crane four-section synchronous telescopic sleeve which comprises a first sleeve assembly, the first sleeve assembly is arranged in a second sleeve assembly in a sliding mode, the second sleeve assembly is arranged in a third sleeve assembly in a sliding mode, and the third sleeve assembly is arranged in a fourth sleeve assembly in a sliding mode. The first sleeve assembly and the third sleeve assembly are in linkage telescoping through a first steel wire rope, the second sleeve assembly and the third sleeve assembly are in linkage telescoping through a second steel wire rope, and the third sleeve assembly and the fourth sleeve assembly are in linkage telescoping through a third steel wire rope. When the device is used, synchronous stretching and retracting of the four sleeves are achieved through cooperation of the steel wire rope traction structure and the pulleys, the steel wire rope tightening devices are arranged, the length of each group of traction steel wire ropes is convenient to install and adjust, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane hoisting, in particular to a four-section synchronous telescopic sleeve of a crane. Background Art

[0002] In the hoisting mechanism of a traditional crane, the drum or fixed pulley is connected to the movable pulley only by a steel wire rope, and the load and the trolley are flexibly connected. When the trolley or the large vehicle is running, the load will swing due to inertia, which affects the positioning accuracy of the load. Even if a hoisting mechanism of a crane with better working conditions is used, the positioning accuracy of the load can only reach the centimeter level. For some special working conditions with higher requirements, the positioning accuracy of the load needs to be improved to the millimeter level, such as ±5mm, and the hoisting mechanism of the traditional crane cannot meet this requirement. In view of this situation, it is urgent to improve the existing hoisting mechanism of the crane, by adding a telescopic sleeve between the trolley frame and the movable pulley group, so that a rigid connection is generated between the load and the trolley frame, and the positioning accuracy of the load is improved. The existing technology adds a telescopic sleeve mechanism between the trolley frame and the movable pulley group, but the movable sleeves can only move separately. After each sleeve is telescoped to the right position, the other two sections move. The telescopic sleeve cannot be telescoped synchronously, which greatly reduces the efficiency. Therefore, those skilled in the art provide a four-section synchronous telescopic sleeve of a crane to solve the problems raised in the above background technology. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a crane four-section synchronous telescopic sleeve, including a first sleeve assembly, the first sleeve assembly is slidably arranged in the second sleeve assembly, the second sleeve assembly is slidably arranged in the third sleeve assembly, the third sleeve assembly is slidably arranged in the fourth sleeve assembly, the first sleeve assembly and the third sleeve assembly are linked to each other by a first steel wire rope, the second sleeve assembly and the third sleeve assembly are linked to each other by a second steel wire rope, and the third sleeve assembly and the fourth sleeve assembly are linked to each other by a third steel wire rope;

[0004] The first sleeve assembly comprises a first sleeve member, a connecting seat plate, a first sliding angle member, a first movable screw seat, a first wire rope fixing member, a first fixed ring plate, and a second wire rope fixing member, wherein the upper end of the first sleeve member is fixedly mounted with the connecting seat plate, a first movable screw seat is fixedly mounted symmetrically on the front and rear center of the upper part of the outer end of the first sleeve member, a first wire rope fixing member is movably mounted on the lower end of the first movable screw seat, the first wire rope fixing member is fixedly connected to the first wire rope, a first fixed ring plate is fixedly mounted on the lower end of the first sleeve member, and second wire rope fixing members are symmetrically mounted on the left and right sides of the upper end surface of the first fixed ring plate;

[0005] The second sleeve assembly comprises a second sleeve member, a first fixed wheel seat, a first sliding wheel, a first damping seat, a first ball pressure plate, a second fixed wheel seat, a second sliding wheel, a second sliding angle member, a first movable column seat and a third wire rope fixing member, the first fixed wheel seat is installed in front-to-back symmetrical openings at the lower part of the second sleeve member, a rotatable first sliding wheel is installed in the middle part of the first fixed wheel seat, the second fixed wheel seat is installed in left-right symmetrical openings at the lower part of the first sleeve member, a rotatable second sliding wheel is installed in the middle part of the second fixed wheel seat, the first movable column seat is fixedly installed in the lower part of the second sleeve member, and the third wire rope fixing member is fixedly installed on the first movable column seat;

[0006] The third sleeve assembly includes a third sleeve member, a limiting collar plate, a fourth wire rope fixing member, a second damping seat, a second ball pressure plate, a second movable screw rod seat, a fifth wire rope fixing member, a cross seat plate, a long rod frame, a third fixed wheel seat, a third sliding wheel and a third sliding angle member. The limiting collar plate is fixedly installed on the upper end of the third sleeve member, and the fourth wire rope fixing member is fixedly installed on the front and rear center of the lower end of the limiting collar plate. The second movable screw rod seat is fixedly installed symmetrically on the lower center of the left and right walls of the third sleeve member, the fifth wire rope fixing member is fixedly installed on the upper end of the second movable screw rod seat, and the fifth wire rope fixing member is fixedly connected to the second wire rope. The cross seat plate is fixedly installed on the bottom of the third sleeve member, the long rod frame is fixedly installed on the middle part of the upper end of the cross seat plate, the third fixed wheel seat is fixedly installed on the upper end of the long rod frame, and a rotatable third sliding wheel is installed in the middle of the third fixed wheel seat.

[0007] The fourth sleeve assembly includes a fourth sleeve member, a third damping seat, a third ball pressure plate, a second movable column seat and a sixth wire rope fixing member. The second movable column seat is fixedly installed in the lower part of the fourth sleeve member, and the sixth wire rope fixing member is fixedly installed on the upper end of the second movable column seat. The sixth wire rope fixing member is fixedly connected to the third wire rope.

[0008] Preferably: first sliding angle pieces are arranged at the four corners of the side ends of the first sleeve piece, and a plurality of first damping seats are installed with bolts at the four corners of the upper part of the second sleeve piece. The first ball pressure plate is fixed to the inner end face of the first damping seat, and the first ball pressure plate is arranged corresponding to the first sliding angle piece, so that the telescopic sliding between the first sleeve piece and the second sleeve piece remains vertically stable.

[0009] Preferably, the fourth steel wire rope fixing member is fixedly connected to the first steel wire rope around the first sliding wheel, the second steel wire rope fixing member is fixedly connected to the second steel wire rope around the second sliding wheel, and the third steel wire rope fixing member is fixedly connected to the third steel wire rope around the third sliding wheel.

[0010] Preferably: second sliding angle pieces are provided at the four corners of the side ends of the second sleeve piece, a plurality of second damping seats are installed with bolts at the four corners of the upper part of the third sleeve piece, the second damping seat is fixed with a second ball pressure plate on the inner end face, and the second ball pressure plate is arranged corresponding to the second sliding angle piece, so that the telescopic sliding between the second sleeve piece and the third sleeve piece remains vertically stable.

[0011] Preferably, third sliding angle pieces are provided at four corners of the side ends of the third sleeve piece.

[0012] Preferably, a plurality of third damping seats are bolted with holes at the four corners of the upper portion of the fourth sleeve member, a third ball pressure plate is fixed to the inner end surface of the third damping seat, and the third ball pressure plate is arranged correspondingly to the third sliding angle member.

[0013] Technical effects and advantages of the utility model:

[0014] 1. When the utility model is used, a telescopic sleeve mechanism is added between the trolley frame and the movable pulley block, so that the lifting mechanism of the traditional crane is changed from a flexible type to a rigid type, thereby greatly improving the positioning accuracy of the load.

[0015] 2. When the utility model is used, the synchronous extension and retraction of the four sleeves is realized through the cooperation of the wire rope traction structure and the pulley, and a wire rope tightening device is provided to facilitate the installation and adjustment of the length of each group of traction wire ropes, thereby increasing work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure provided by this application;

[0017] Figure 2 is a schematic structural diagram of the first steel wire rope provided in the present application;

[0018] Figure 3 is a schematic structural diagram of a second steel wire rope provided in the present application;

[0019] Figure 4 is a schematic structural diagram of a third steel wire rope provided in the present application;

[0020] In the figure: 1, first sleeve assembly; 2, second sleeve assembly; 3, third sleeve assembly; 4, fourth sleeve assembly; 5, first steel wire rope; 6, second steel wire rope; 7, third steel wire rope;

[0021] 11. First sleeve member; 12. Connecting seat plate; 13. First sliding angle member; 14. First movable screw seat; 15. First wire rope fixing member; 16. First fixing ring plate; 17. Second wire rope fixing member;

[0022] 21. second sleeve member; 22. first fixed wheel seat; 23. first sliding wheel; 24. first damping seat; 25. first ball bearing pressure plate; 26. second fixed wheel seat; 27. second sliding wheel; 28. second sliding angle member; 29. ​​first movable column seat; 210. third wire rope fixing member;

[0023] 31. The third sleeve member; 32. The limiting collar plate; 33. The fourth wire rope fixing member; 34. The second damping seat; 35. The second ball bearing pressure plate; 36. The second movable screw rod seat; 37. The fifth wire rope fixing member; 38. The cross seat plate; 39. The long rod frame; 310. The third fixed wheel seat; 311. The third sliding wheel; 312. The third sliding angle member;

[0024] 41. Fourth sleeve member; 42. Third damping seat; 43. Third ball pressure plate; 44. Second movable column seat; 45. Sixth wire rope fixing member. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0026] See also Figures 1 to 4 In this embodiment, a four-section synchronous telescopic sleeve of a crane is provided, including a first sleeve assembly 1, the first sleeve assembly 1 is slidably arranged in the second sleeve assembly 2, the second sleeve assembly 2 is slidably arranged in the third sleeve assembly 3, the third sleeve assembly 3 is slidably arranged in the fourth sleeve assembly 4, the first sleeve assembly 1 and the third sleeve assembly 3 are linked to each other by a first steel wire rope 5, the second sleeve assembly 2 and the third sleeve assembly 3 are linked to each other by a second steel wire rope 6, and the third sleeve assembly 3 and the fourth sleeve assembly 4 are linked to each other by a third steel wire rope 7;

[0027] The first sleeve assembly 1 comprises a first sleeve member 11, a connecting seat plate 12, a first sliding angle member 13, a first movable screw rod seat 14, a first wire rope fixing member 15, a first fixed ring plate 16, and a second wire rope fixing member 17. The upper end of the first sleeve member 11 is fixedly mounted with the connecting seat plate 12, and the first sliding angle member 13 is arranged at the four corners of the side end of the first sleeve member 11. The first movable screw rod seat 14 is fixedly mounted with a first movable screw rod seat 14 symmetrically at the front and rear center of the upper part of the outer end of the first sleeve member 11. The first wire rope fixing member 15 is movably mounted at the lower end of the first movable screw rod seat 14. The first wire rope fixing member 15 is fixedly connected to the first wire rope 5. The first fixed ring plate 16 is fixedly mounted at the lower end of the first sleeve member 11. The second wire rope fixing member 17 is symmetrically mounted with the left and right sides of the upper end surface of the first fixed ring plate 16. The second wire rope fixing member 17 is fixedly connected to the second wire rope 6 wound around the second sliding wheel 27.

[0028] The second sleeve assembly 2 comprises a second sleeve member 21, a first fixed wheel seat 22, a first sliding wheel 23, a first damping seat 24, a first ball pressure plate 25, a second fixed wheel seat 26, a second sliding wheel 27, a second sliding angle member 28, a first movable column seat 29 and a third wire rope fixing member 210. The first fixed wheel seat 22 is installed in front and back symmetrical openings at the lower part of the second sleeve member 21, a rotatable first sliding wheel 23 is installed in the middle part of the first fixed wheel seat 22, a plurality of first damping seats 24 are installed in the openings at the four corners of the upper part of the second sleeve member 21 through bolts, the first damping seat 24 is fixed with the first ball pressure plate 25 on the inner side end face, and the first ball pressure plate 25 is fixed on the inner side end face of the first damping seat 24. The bead pressing plate 25 is arranged corresponding to the first sliding angle piece 13, so that the telescopic sliding between the first sleeve piece 11 and the second sleeve piece 21 remains vertically stable. The second fixed wheel seat 26 is installed in the left-right symmetrical openings at the lower part of the first sleeve piece 11, and a rotatable second sliding wheel 27 is installed in the middle of the second fixed wheel seat 26. Second sliding angle pieces 28 are arranged at the four corners of the side end of the second sleeve piece 21. A first movable column seat 29 is fixedly installed in the lower part of the second sleeve piece 21, and a third steel wire rope fixing piece 210 is fixedly installed on the first movable column seat 29. The third steel wire rope fixing piece 210 is fixedly connected to the third steel wire rope 7 wrapped around the third sliding wheel 311;

[0029] The third sleeve assembly 3 includes a third sleeve member 31, a limiting collar plate 32, a fourth steel wire rope fixing member 33, a second damping seat 34, a second ball pressure plate 35, a second movable screw rod seat 36, a fifth steel wire rope fixing member 37, a cross seat plate 38, a long rod frame 39, a third fixed wheel seat 310, a third sliding wheel 311 and a third sliding angle member 312. The limiting collar plate 32 is fixedly installed on the upper end of the third sleeve member 31, and the fourth steel wire rope fixing member 33 is fixedly installed on the front and rear center of the lower end face of the limiting collar plate 32. The fourth steel wire rope fixing member 33 is fixedly connected to the first steel wire rope 5 wound around the first sliding wheel 23. A plurality of second damping seats 34 are installed with bolts at the four corners of the upper part of the third sleeve member 31 through holes. The second damping seats 34 are fixed with second ball pressure plates on the inner side end face. The plate 35, the second ball pressure plate 35 and the second sliding angle piece 28 are arranged correspondingly, so that the telescopic sliding between the second sleeve piece 21 and the third sleeve piece 31 remains vertically stable, the second movable screw rod seat 36 is fixedly installed symmetrically at the lower part of the left and right walls of the third sleeve piece 31, the fifth steel wire rope fixing piece 37 is fixedly installed at the upper end of the second movable screw rod seat 36, and the fifth steel wire rope fixing piece 37 is fixedly connected to the second steel wire rope 6, the cross seat plate 38 is fixedly installed at the bottom of the third sleeve piece 31, the long rod frame 39 is fixedly installed at the middle part of the upper end of the cross seat plate 38, the third fixed wheel seat 310 is fixedly installed at the upper end of the long rod frame 39, the third fixed wheel seat 310 is installed with a rotatable third sliding wheel 311 in the middle part, and the third sliding angle pieces 312 are arranged at the four corners of the side end of the third sleeve piece 31;

[0030] The fourth sleeve assembly 4 includes a fourth sleeve member 41, a third damping seat 42, a third ball pressure plate 43, a second movable column seat 44 and a sixth wire rope fixing member 45. A plurality of third damping seats 42 are installed with bolts at the four corners of the upper portion of the fourth sleeve member 41. The third ball pressure plate 43 is fixed to the inner end face of the third damping seat 42. The third ball pressure plate 43 is arranged corresponding to the third sliding angle member 312. The second movable column seat 44 is fixedly installed in the lower portion of the fourth sleeve member 41. The sixth wire rope fixing member 45 is fixedly installed on the upper end of the second movable column seat 44. The sixth wire rope fixing member 45 is fixedly connected to the third wire rope 7.

[0031] The working principle of the utility model is:

[0032] When the utility model is used, a telescopic sleeve mechanism is added between the trolley frame and the movable pulley block, so that the lifting mechanism of the traditional crane is changed from a flexible type to a rigid type, thereby greatly improving the positioning accuracy of the load, and the first steel wire rope 5 is used as a connecting piece for the first steel wire rope fixing piece 15 on the first sleeve member 11 and the fourth steel wire rope fixing piece 33 on the third sleeve member 31 around the first sliding wheel 23, and the second steel wire rope 6 is used as a connecting piece for the fifth steel wire rope fixing piece 37 on the third sleeve member 31 and the second steel wire rope fixing piece 17 on the first sleeve member 11 around the second sliding wheel 27, and the sixth steel wire rope fixing piece 45 on the fourth sleeve member 41 and the third steel wire rope fixing piece 210 on the second sleeve member 21 around the third sliding wheel 311 are matched, and the synchronous extension and retraction of the four sleeves is realized through the cooperation of the steel wire rope traction structure and the pulley, and a steel wire rope tightening device is provided, which is convenient for installing and adjusting the length of each group of traction steel wire ropes, thereby increasing work efficiency.

[0033] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A crane four-section synchronous telescopic sleeve, comprising a first sleeve assembly (1), characterized in that: The first sleeve assembly (1) is slidably arranged in the second sleeve assembly (2), the second sleeve assembly (2) is slidably arranged in the third sleeve assembly (3), the third sleeve assembly (3) is slidably arranged in the fourth sleeve assembly (4), the first sleeve assembly (1) and the third sleeve assembly (3) are linked to each other by a first steel wire rope (5), the second sleeve assembly (2) and the third sleeve assembly (3) are linked to each other by a second steel wire rope (6), and the third sleeve assembly (3) and the fourth sleeve assembly (4) are linked to each other by a third steel wire rope (7); The first sleeve assembly (1) comprises a first sleeve member (11), a connecting seat plate (12), a first sliding angle member (13), a first movable screw seat (14), a first wire rope fixing member (15), a first fixed ring plate (16), and a second wire rope fixing member (17); the upper end of the first sleeve member (11) is fixedly mounted on the connecting seat plate (12); the first movable screw seat (14) is fixedly mounted on the upper outer end of the first sleeve member (11) symmetrically in the front and rear directions; the lower end of the first movable screw seat (14) is movably mounted with the first wire rope fixing member (15); the first wire rope fixing member (15) is fixedly connected to the first wire rope (5); the lower end of the first sleeve member (11) is fixedly mounted with the first fixed ring plate (16); and the second wire rope fixing member (17) is symmetrically mounted on the left and right sides of the upper end surface of the first fixed ring plate (16); The second sleeve assembly (2) comprises a second sleeve member (21), a first fixed wheel seat (22), a first sliding wheel (23), a first damping seat (24), a first ball bearing pressure plate (25), a second fixed wheel seat (26), a second sliding wheel (27), a second sliding angle member (28), a first movable column seat (29) and a third wire rope fixing member (210); the first fixed wheel seat (22) is installed in front and back symmetrical openings at the lower part of the second sleeve member (21); a rotatable first sliding wheel (23) is installed in the middle part of the first fixed wheel seat (22); a second fixed wheel seat (26) is installed in left and right symmetrical openings at the lower part of the first sleeve member (11); a rotatable second sliding wheel (27) is installed in the middle part of the second fixed wheel seat (26); a first movable column seat (29) is fixedly installed in the lower part of the second sleeve member (21); and the third wire rope fixing member (210) is fixedly installed on the first movable column seat (29); The third sleeve assembly (3) comprises a third sleeve member (31), a limiting collar plate (32), a fourth steel wire rope fixing member (33), a second damping seat (34), a second ball pressure plate (35), a second movable screw rod seat (36), a fifth steel wire rope fixing member (37), a cross seat plate (38), a long rod frame (39), a third fixed wheel seat (310), a third sliding wheel (311) and a third sliding angle member (312). The limiting collar plate (32) is fixedly mounted on the upper end of the third sleeve member (31), and the fourth steel wire rope fixing member (33) is fixedly mounted on the front and rear center of the lower end of the limiting collar plate (32). 33), a second movable screw rod seat (36) is fixedly installed symmetrically at the lower part of the left and right side walls of the third sleeve member (31), a fifth steel wire rope fixing member (37) is fixedly installed at the upper end of the second movable screw rod seat (36), the fifth steel wire rope fixing member (37) is fixedly connected to the second steel wire rope (6), a cross seat plate (38) is fixedly installed at the bottom of the third sleeve member (31), a long rod frame (39) is fixedly installed at the middle part of the upper end of the cross seat plate (38), a third fixed wheel seat (310) is fixedly installed at the upper end of the long rod frame (39), and a rotatable third sliding wheel (311) is installed in the middle part of the third fixed wheel seat (310); The fourth sleeve assembly (4) comprises a fourth sleeve member (41), a third damping seat (42), a third ball pressure plate (43), a second movable column seat (44) and a sixth steel wire rope fixing member (45); the second movable column seat (44) is fixedly installed in the lower part of the fourth sleeve member (41); the sixth steel wire rope fixing member (45) is fixedly installed on the upper end of the second movable column seat (44); and the sixth steel wire rope fixing member (45) is fixedly connected to the third steel wire rope (7).

2. The four-section synchronous telescopic sleeve of a crane according to claim 1 is characterized in that: The first sleeve member (11) is provided with first sliding angle members (13) at the four corners of the side end, and a plurality of first damping seats (24) are bolted with holes at the four corners of the upper part of the second sleeve member (21). The first damping seat (24) is fixed with a first ball pressure plate (25) on the inner side end surface, and the first ball pressure plate (25) is provided correspondingly to the first sliding angle member (13).

3. The four-section synchronous telescopic sleeve of a crane according to claim 1 is characterized in that: The fourth steel wire rope fixing member (33) is fixedly connected to the first steel wire rope (5) around the first sliding wheel (23), the second steel wire rope fixing member (17) is fixedly connected to the second steel wire rope (6) around the second sliding wheel (27), and the third steel wire rope fixing member (210) is fixedly connected to the third steel wire rope (7) around the third sliding wheel (311).

4. The four-section synchronous telescopic sleeve of a crane according to claim 1 is characterized in that: The second sleeve member (21) is provided with second sliding angle members (28) at the four corners of the side end, and a plurality of second damping seats (34) are bolted with holes at the four corners of the upper part of the third sleeve member (31). The second damping seat (34) is fixed with a second ball pressure plate (35) on the inner side end surface, and the second ball pressure plate (35) is provided correspondingly to the second sliding angle member (28).

5. The four-section synchronous telescopic sleeve of a crane according to claim 1 is characterized in that: Third sliding angle pieces (312) are arranged at the four corners of the side ends of the third sleeve piece (31).

6. The four-section synchronous telescopic sleeve of a crane according to claim 5, characterized in that: A plurality of third damping seats (42) are bolted with holes at the four corners of the upper portion of the fourth sleeve member (41), a third ball pressure plate (43) is fixed to the inner end surface of the third damping seat (42), and the third ball pressure plate (43) is arranged correspondingly to the third sliding angle member (312).

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