Guide structure of elevator

Abstract

The utility model provides a guide structure of an elevator, and belongs to the technical field of elevators. The technical problems that a steel wire rope in an existing elevator is prone to being separated from a wire groove or overlapped in the wire groove, and winding and unwinding of the steel wire rope are affected are solved. The elevator guide structure comprises a rope wheel and a steel wire rope, a thread groove is formed in the peripheral face of the rope wheel, a guide block is arranged on the periphery of the rope wheel in a sleeved mode, a circle of screw wheel matched with the thread groove is arranged on the inner peripheral face of the guide block, and a plurality of guide holes evenly distributed in the circumferential direction of the axis of the guide block are formed in the guide block. A guide rod is arranged in the guide hole in a penetrating mode, and one end of the guide rod is fixed to the shell. The steel wire rope coiling device ensures that the steel wire rope coiled in the thread groove can be better coiled, prevents tension expansion of the steel wire rope, prevents clamping stagnation of the steel wire rope, and enables the steel wire rope to be more smoothly coiled and uncoiled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hoist, especially point to a hoist guide structure. BACKGROUND

[0002] The hoist is through the power machinery to drag the flexible piece steel wire rope and the transported goods up and down movement to complete the transportation process. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model aims at providing a hoist guide structure.

[0004] The utility model discloses a hoist guide structure, including rope wheel and steel wire rope, the outer periphery of rope wheel has the thread groove, and the outer periphery of rope wheel is equipped with the guide block, the inner periphery of guide block is provided with a circle of the screw wheel that cooperates with the thread groove, the guide block is provided with the several guide holes that are evenly distributed around the guide block axis direction on, and the guide hole is threaded with the guide rod, and the one end of guide rod is fixed in the casing.

[0005] Further, the inner periphery of guide block is provided with the limiting hole that the inner diameter is greater than the inner diameter of screw wheel, and the limiting hole is located at one side of screw wheel, and the guide hole is close to the limiting hole.

[0006] Further, the guide hole is communicated with the limiting hole.

[0007] Further, the axial length of guide rod is greater than the axial length of rope wheel.

[0008] Further, the guide hole has two, three or four.

[0009] Further, the inner periphery of guide block is provided with the containing hole that the inner diameter is greater than the limiting hole, and the containing hole and screw wheel are located at the two sides of limiting hole respectively, and the one end of rope wheel away from the casing is fixedly connected with the protective cover, the protective cover protrudes with the fixed ring towards rope wheel, and the fixed ring is embedded in containing hole.

[0010] Further, the end of rope wheel close to protective cover has the aperture, and the aperture is smoothly connected with the end of thread groove, and the fixed ring covers the first thread groove.

[0011] Further, the guide rod comprises a guide cylinder part and a necked part, the diameter of the guide cylinder part is larger than that of the necked part, and the guide cylinder part is located between the shell and the protective cover.

[0012] Further, the guide block is provided with a rope passing hole along the tangent direction of the screw groove, the inner hole of the rope passing hole is aligned with one end of the screw groove, the guide block is provided with a mounting hole along the radial direction of the screw groove, the axis of the mounting hole is perpendicular to and communicated with the axis of the rope passing hole, and the mounting hole is provided with a pressing wheel assembly.

[0013] Further, the pressing wheel assembly comprises a roller, a pin shaft and a pressing plate, the pin shaft passes through the roller and is fixed with the pressing plate, the roller is located in the mounting hole and is in contact with the steel wire rope, and the pressing plate is fixed with the guide block.

[0014] Compared with the prior art, the technical effects of the utility model are as follows: 1. the rope wheel, the steel wire rope, the guide block and the guide rod are an integral whole, the guide rod can be detachably fixed on the shell, and assembly and disassembly are convenient; 2. the guide rod cooperates with the pressing wheel assembly to make the steel wire rope have straightening property, so that the steel wire rope is not affected by the tension when being retracted, and the steel wire rope is more smoothly retracted; 3. the guide rod installed in the guide hole can be infinitely close to the steel wire rope without contacting the steel wire rope, so that the steel wire rope wound in the screw groove can be better wound, the tension expansion is prevented, the steel wire rope is prevented from being stuck, and the steel wire rope is more smoothly retracted and extended. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a sectional view of the utility model Figure 1 .

[0016] Figure 2 is a sectional view of the utility model Figure 1 .

[0017] Figure 3 is a sectional view of the utility model .

[0018] Figure 4 is a sectional view of the utility model .

[0019] Figure 5 is a sectional view of the utility model Figure 2 .

[0020] Figure 6 is a sectional view of the utility model Figure 2 .

[0021] Figure number mark: 1, rope wheel; 101, thread groove; 102, notch; 2, steel wire rope; 3, guide block; 301, screw; 302, guide hole; 303, limiting hole; 304, containing hole; 305, rope passing hole; 306, mounting hole; 4, guide rod; 401, guide cylindrical part; 402, necking part; 5, shell; 6, roller; 7, pin shaft; 8, pressing plate. DETAILED DESCRIPTION

[0022] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0023] According to Figures 1 to 6 As shown in the figure, a hoist guide structure, including rope wheel 1 and steel wire rope 2, the outer peripheral surface of rope wheel 1 has thread groove 101, rope wheel 1 outer periphery is provided with guide block 3, a circle of screw 301 that cooperates with thread groove 101 is arranged on the inner peripheral surface of guide block 3, a plurality of guide holes 302 that are evenly distributed circumferentially around the axis of guide block 3 are arranged on guide block 3, guide rod 4 is arranged in guide hole 302, one end of guide rod 4 is fixed on shell 5. Among them, preferably, guide hole 302 has two, three or four. Rope wheel 1 is driven to rotate by motor, and thread groove 101 of rope wheel 1 drives guide block 3 to translate along guide rod 4. Limiting hole 303 with a larger inner diameter than the inner diameter of screw 301 is arranged on the inner peripheral surface of guide block 3, limiting hole 303 is located on one side of screw 301, and guide hole 302 is close to limiting hole 303. Guide hole 302 is communicated with limiting hole 303. The axial length of guide rod 4 is greater than the axial length of rope wheel 1. Containing hole 304 with a larger inner diameter than limiting hole 303 is arranged on the inner peripheral surface of guide block 3, containing hole 304 and screw 301 are located on both sides of limiting hole 303 respectively, and the end of rope wheel 1 away from shell 5 is fixedly connected with protective cover, the protective cover protrudes with fixed ring towards rope wheel 1, and the fixed ring is embedded in containing hole 304. The end of rope wheel 1 close to the protective cover has notch 102, notch 102 is smoothly connected with the end of thread groove 101, and the fixed ring covers the first circle of thread groove 101. Guide rod 4 includes guide cylindrical part 401 and necking part 402, the diameter of guide cylindrical part 401 is greater than the diameter of necking part 402, and guide cylindrical part 401 is located between shell 5 and protective cover. The guide rod 4 installed in guide hole 302 can be infinitely close to steel wire rope 2 without contacting steel wire rope 2, so that the steel wire rope 2 wound in thread groove 101 can be better wound, the tension expansion is prevented, the steel wire rope 2 is prevented from being stuck, and the winding and unwinding of steel wire rope 2 is more smooth.

[0024] The guiding block 3 is provided with a rope passing hole 305 along the tangent direction of the screw 301, the inner hole of the rope passing hole 305 is aligned with one end of the screw 301, the guiding block 3 is provided with a mounting hole 306 along the radial direction of the screw 301, the axis of the mounting hole 306 is perpendicular to and communicated with the axis of the rope passing hole 305, and the mounting hole 306 is provided with a pressing wheel assembly. The pressing wheel assembly comprises a roller 6, a pin shaft 7 and a pressing plate 8, the pin shaft 7 passes through the roller 6 and is fixed with the pressing plate 8, the roller 6 is located in the mounting hole 306 and is in contact with the steel wire rope 2, and the pressing plate 8 is fixed with the guiding block 3. The guiding rod 4 cooperates with the pressing wheel assembly to make the steel wire rope 2 have a straightening property, so that the steel wire rope 2 is not affected by the tension when being retracted, and the steel wire rope 2 is more smooth in retraction. The rope wheel 1, the steel wire rope 2, the guiding block 3 and the guiding rod 4 are an integral whole, and are detachably fixed on the shell 5 through the guiding rod 4, so that the assembly and disassembly are convenient.

[0025] The above embodiments are only the preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: all equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope defined by the utility model claim.

Claims

1. A hoist guide structure, comprising a sheave (1) and a steel rope (2), wherein the outer circumference of the sheave (1) has a thread groove (101), and the outer circumference of the sheave (1) is sleeved with a guide block (3), characterized in that: The inner circumference of the guide block (3) is provided with a screw wheel (301) that cooperates with the thread groove (101). The guide block (3) is provided with a plurality of guide holes (302) uniformly distributed circumferentially around the axis of the guide block (3). A guide rod (4) is passed through the guide hole (302), and one end of the guide rod (4) is fixed to the housing (5).

2. The guide structure of an elevator according to claim 1, characterized in that: A limiting hole (303) having an inner diameter greater than that of the screw wheel (301) is provided on the inner circumference of the guide block (3). The limiting hole (303) is located on one side of the screw wheel (301), and the guide hole (302) is close to the limiting hole (303).

3. The guide structure of an elevator according to claim 2, characterized in that: The guide hole (302) is communicated with the limiting hole (303).

4. The guide structure of an elevator according to claim 2, characterized in that: The axial length of the guide rod (4) is greater than the axial length of the rope wheel (1).

5. The guide structure of an elevator according to claim 1, characterized in that: The number of the guide holes (302) is two, three or four.

6. The guide structure for an elevator according to claim 2, 3 or 4, characterized in that: The inner circumference of the guide block (3) is provided with a receiving hole (304) whose inner diameter is larger than the limiting hole (303), and the receiving hole (304) and the screw wheel (301) are respectively located on both sides of the limiting hole (303). The end of the rope pulley (1) away from the housing (5) is fixedly connected to a protective cover, and the protective cover protrudes toward the rope pulley (1) with a fixed ring, and the fixed ring is embedded in the receiving hole (304).

7. The guide structure of an elevator according to claim 6, characterized in that: The rope pulley (1) has a notch (102) at the end close to the protective cover, and the notch (102) is smoothly connected to the end of the thread groove (101), and the fixed ring covers the first circle of the thread groove (101).

8. The guide structure of an elevator according to claim 7, characterized in that: The guide rod (4) comprises a guide cylindrical portion (401) and a constricted portion (402). The diameter of the guide cylindrical portion (401) is larger than the diameter of the constricted portion (402). The guide cylindrical portion (401) is located between the housing (5) and the protective cover.

9. The guide structure of an elevator according to claim 1, characterized in that: The guide block (3) is provided with a rope threading hole (305) along the tangential direction of the screw wheel (301), the inner opening of the rope threading hole (305) is aligned with one end of the screw wheel (301), and the guide block (3) is provided with a mounting hole (306) along the radial direction of the screw wheel (301), the axis of the mounting hole (306) is perpendicular to the axis of the rope threading hole (305) and is connected, and a pressure wheel assembly is provided in the mounting hole (306).

10. The guide structure of an elevator according to claim 9, characterized in that: The pressure wheel assembly includes a roller (6), a pin shaft (7) and a pressure plate (8), wherein the pin shaft (7) passes through the roller (6) and is fixed to the pressure plate (8), the roller (6) is located in the mounting hole (306) and contacts the steel wire rope (2), and the pressure plate (8) is fixed to the guide block (3).

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