Rope wheel shaft fixing device capable of replacing U-shaped bolt

Abstract

The utility model discloses a rope wheel shaft fixing device capable of replacing a U-shaped bolt, which comprises a rope wheel, a U-shaped bolt, a U-shaped bolt, a U-shaped bolt, a U-shaped bolt, a U-shaped bolt and a U-shaped bolt, the shaft positioning assembly comprises a lining plate, a positioning piece and a bolt fastener, the lining plate is fixedly installed on the supporting beam, a threaded hole is formed in the lining plate, the positioning piece comprises an installation plate and a U-shaped plate, the rope wheel shaft is sleeved with the positioning piece, and the installation plate is fixedly installed on the lining plate through the bolt fastener; and a rod body of the bolt fastener penetrates through the mounting plate and then is in threaded connection in the threaded hole. Compared with the prior art, the rope wheel can be installed and replaced under the condition that the installation space is limited, and the beam component does not need to be pre-drilled.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator equipment, in particular to a rope pulley shaft fixing device which can replace a U-shaped bolt. Background Art

[0002] Elevators need steel wire ropes to carry passengers or goods. To increase the number of people or cargo tonnage, the method of increasing the wire rope winding ratio is often chosen. The high winding ratio reduces the power required by the main engine and reduces the load on the load-bearing components. In the case of a high winding ratio car such as 2:1, 4:1, and 8:1, multiple sheaves are required.

[0003] The sheave is used to guide the wire rope and bear the force of the wire rope. When installing the sheave, it is generally fixed with a simple U-bolt. When using U-bolts to fix, it is necessary to pre-drill holes in the beam components to achieve bolt fixing, and a certain amount of space is required for tightening the U-bolts and replacing the sheave later.

[0004] Therefore, using U-bolts to fix the sheave has the following disadvantages:

[0005] 1) The pre-drilled holes on the beam components are prone to errors in the position of the pre-drilled holes due to the large deviation of the on-site wells;

[0006] 2) When the installation space is limited, it is impossible to install or replace the sheave, causing delays in the construction period. Utility Model Content

[0007] The utility model aims to provide a rope pulley shaft fixing device which can replace the U-bolt, so as to realize the installation and replacement of the rope pulley under the condition of limited installation space, and the beam component does not need to be pre-drilled.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a rope pulley shaft fixing device which can replace the U-bolt, comprising:

[0009] A rope pulley, wherein a rope pulley shaft is arranged in the middle thereof, and one end of the rope pulley shaft extends above the supporting beam;

[0010] The shaft positioning assembly includes a lining plate, a positioning piece and a bolt fastener. The lining plate is fixedly mounted on the support beam, a threaded hole is arranged on the lining plate, the positioning piece includes a mounting plate and a U-shaped plate, the positioning piece is sleeved on the pulley shaft, the mounting plate is fixedly mounted on the lining plate by means of a bolt fastener, and the rod body of the bolt fastener passes through the mounting plate and is threadedly connected in the threaded hole.

[0011] As a further description of the above technical solution:

[0012] Two U-shaped plates arranged in parallel are arranged on the mounting plate.

[0013] As a further description of the above technical solution:

[0014] A nut is sleeved on the bolt fastener.

[0015] As a further description of the above technical solution:

[0016] A gasket is arranged between the nut and the mounting plate.

[0017] As a further description of the above technical solution:

[0018] Symmetrically arranged bolt fasteners are arranged on both sides of the rope pulley shaft.

[0019] As a further description of the above technical solution:

[0020] The length of the backing plate is equal to the length of the mounting plate.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0022] 1. In the utility model, when the rope pulley is installed, the liner of the shaft positioning assembly is first welded to the support beam on site, and then the positioning piece is mounted on the rope pulley shaft, and then the positioning piece and the liner are fixed by bolt fasteners. The positioning piece is detachable, which is convenient for installing or replacing the rope pulley in a small space, and there is no need to drill holes on the support beam, avoiding inconvenience in rope pulley installation and project delays caused by large well deviation.

[0023] 2. In the present invention, a nut is sleeved on the bolt fastener. The nut is arranged between the head of the bolt fastener and the mounting plate, so that when the head of the bolt fastener is away from the surface of the mounting plate, the stability of the connection of the bolt fastener is fully guaranteed, and the fixing effect of the rope pulley shaft is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 The present invention is a structural schematic diagram of a rope pulley shaft fixing device that can replace the U-bolt.

[0026] Figure 2 A schematic diagram of the structure of the central axis positioning assembly of a rope pulley shaft fixing device that can replace the U-bolt Figure 1 .

[0027] Figure 3 A schematic diagram of the structure of the central axis positioning assembly of a rope pulley shaft fixing device that can replace the U-bolt Figure 2 .

[0028] Legend:

[0029] 1. Rope pulley; 11. Rope pulley shaft; 12. Support beam; 2. Lining plate; 21. Threaded hole; 3. Mounting plate; 4. U-shaped plate; 5. Bolt fastener; 51. Nut; 52. Gasket. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example 1

[0032] See also Figure 1-3 The utility model provides a technical solution: a rope pulley shaft fixing device that can replace the U-bolt, comprising:

[0033] A rope pulley 1, wherein a rope pulley shaft 11 is arranged in the middle thereof, and one end of the rope pulley shaft 11 extends above the support beam 12;

[0034] The shaft positioning assembly includes a lining plate 2, a positioning member and a bolt fastener 5. The lining plate 2 is fixedly mounted on the support beam 12. The lining plate 2 is provided with a threaded hole 21. The positioning member includes a mounting plate 3 and a U-shaped plate 4. The positioning member is sleeved on the sheave shaft 11. The mounting plate 3 is fixedly mounted on the lining plate 2 by means of the bolt fastener 5. The rod of the bolt fastener 5 passes through the mounting plate 3 and is threadedly connected in the threaded hole 21. The mounting plate 3 and the U-shaped plate 4 are welded to form a whole when leaving the factory.

[0035] Two parallel U-shaped plates 4 are arranged on the mounting plate 3. On the one hand, the positioning effect of the rope pulley shaft 11 is improved; on the other hand, compared with a complete U-shaped block, the U-shaped positioning structure composed of two parallel U-shaped plates 4 reduces the cost and facilitates the removal of the bolt fastener 5.

[0036] The bolt fastener 5 is sleeved with a nut 51. In order to facilitate the removal of the bolt fastener 5, the head of the bolt fastener 5 is away from the surface of the mounting plate 3. The nut 51 is arranged between the head of the bolt fastener 5 and the mounting plate 3, so that when the head of the bolt fastener 5 is away from the surface of the mounting plate 3, the stability of the connection of the bolt fastener 5 is fully guaranteed, and the fixing effect of the rope pulley shaft 11 is guaranteed.

[0037] A gasket 52 is provided between the nut 51 and the mounting plate 3 to further prevent the bolt fastener 5 from being loosened during installation, thereby ensuring the fixing effect of the rope pulley shaft 11 .

[0038] Symmetrically arranged bolt fasteners 5 are provided on both sides of the rope pulley shaft 11 to ensure the fixing effect of the rope pulley shaft 11.

[0039] The length of the lining plate 2 is equal to the length of the mounting plate 3 , so that the through holes on the mounting plate 3 are aligned with the threaded holes 21 on the lining plate 2 , so that the bolt fasteners 5 can be installed.

[0040] Working principle: When installing the rope pulley 1, first weld the liner 2 of the shaft positioning assembly to the support beam 12 on site, then put the positioning piece on the rope pulley shaft 11, and then fix the positioning piece to the liner 2 by bolt fasteners 5. The positioning piece is detachable, which is convenient for installing or replacing the rope pulley 1 in a small space, and there is no need to drill holes on the support beam 12, avoiding inconvenience in installing the rope pulley 1 and project delays due to large well deviation.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rope pulley shaft fixing device that can replace the U-bolt, characterized in that: include: A rope pulley, wherein a rope pulley shaft is arranged in the middle thereof, and one end of the rope pulley shaft extends above the support beam; The shaft positioning assembly includes a lining plate, a positioning piece and a bolt fastener. The lining plate is fixedly mounted on the support beam, a threaded hole is arranged on the lining plate, the positioning piece includes a mounting plate and a U-shaped plate, the positioning piece is sleeved on the pulley shaft, the mounting plate is fixedly mounted on the lining plate by the bolt fastener, and the rod body of the bolt fastener passes through the mounting plate and is threadedly connected in the threaded hole.

2. A rope pulley shaft fixing device that can replace U-bolts according to claim 1, characterized in that: Two U-shaped plates arranged in parallel are arranged on the mounting plate.

3. A rope pulley shaft fixing device that can replace U-bolts according to claim 1, characterized in that: A nut is sleeved on the bolt fastener.

4. A rope pulley shaft fixing device that can replace U-bolts according to claim 3, characterized in that: A gasket is arranged between the nut and the mounting plate.

5. A rope pulley shaft fixing device that can replace U-bolts according to claim 1, characterized in that: The bolt fasteners are symmetrically arranged on both sides of the rope pulley shaft.

6. A rope pulley shaft fixing device that can replace U-bolts according to claim 1, characterized in that: The length of the lining plate is equal to the length of the mounting plate.

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