Drag chain wiring device of elevator

Abstract

The utility model provides a drag chain routing device of an elevator, which belongs to the technical field of elevators and comprises a support, a first side plate and an electric / pneumatic wire harness, the support comprises a transverse part, a vertical part arranged below the transverse part and a shaft part arranged on the vertical part, and a chain wheel and at least one drag chain wheel are sequentially and rotatably arranged on the shaft part along one end. The chain wheel and the drag chain wheel are fixed relative to the axial position of the shaft part, a chain is assembled on the chain wheel, a drag chain is arranged on the drag chain wheel, the drag chain is hollow, the electric / pneumatic wire harness is arranged in the drag chain, and the drag chain wheel rotates along with the chain wheel to enable the electric / pneumatic wire harness to move along with the drag chain; according to the utility model, extra bearings and other auxiliary parts required by a traditional wiring chuck are reduced, so that the total number of parts is reduced, the manufacturing process is simplified, the material cost and the processing cost are directly reduced, and meanwhile, the production and assembly time is reduced due to simpler assembly, so that the production cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and in particular to a drag chain routing device of an elevator. Background Art

[0002] Hoists are widely used in the industrial field to transport materials and goods vertically or diagonally. With the improvement of industrial automation level, the performance and reliability requirements of hoists are constantly improving. During the operation of hoists, the placement and protection of cables and pipelines have become an important consideration. For this reason, drag chain routing devices came into being.

[0003] Traditional drag chain routing devices usually consist of a series of interconnected chain links to form a bendable chain to protect and guide cables, air pipes, liquid pipes, etc. In mobile equipment such as hoists, drag chains need to adapt to the movement of the equipment to prevent the cables from being twisted, rubbed or stretched during routing, causing damage.

[0004] The patent application of the applicant with publication number CN217874504U discloses a built-in wiring mechanism of a hoist, which places the electric / gas lines inside the drag chain, effectively protecting the electric / gas lines, and the electric / gas wiring harness is limited between a pair of wiring chucks on the lifting shaft frame, and the electric / gas wiring harness changes position with the movement of the mechanism. However, the pair of wiring chucks need to be assembled with the lifting shaft frame using bearings during assembly, which increases the number of parts and leads to an increase in the cost of the device. At the same time, it makes the assembly steps of the wiring mechanism cumbersome and increases the difficulty of assembly. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a drag chain routing device for a hoist.

[0006] The technical solution adopted by the utility model is as follows: a drag chain routing device for an elevator, comprising a bracket, a first side plate and an electric / pneumatic wiring harness, the bracket comprising a horizontal portion, a vertical portion arranged below the horizontal portion and an axis portion arranged on the vertical portion, a sprocket and at least one drag chain wheel are rotatably arranged on one end of the axis portion, and the sprocket and the drag chain wheel are both fixed in axial positions relative to the axis portion, a chain is mounted on the sprocket, a drag chain is arranged on the drag chain wheel, the drag chain is hollow, the electric / pneumatic wiring harness is arranged in the drag chain, the drag chain wheel rotates with the sprocket so that the electric / pneumatic wiring harness moves with the drag chain.

[0007] An adjustment through hole is arranged on the horizontal part along the direction of the sprocket wheel, and a first threaded hole matched with the adjustment through hole is arranged on the first side plate. The first side plate is fixed to the horizontal part by bolts passing through the adjustment through hole and connecting with the first threaded hole, and an installation space with adjustable axial length is formed between the vertical part and the first side plate.

[0008] The adjusting through hole is a long waist hole arranged along the axial direction of the shaft, and the length of the long waist hole along the axial direction of the shaft is greater than the width of the sprocket wheel, or the adjusting through hole is a plurality of through holes arranged at intervals along the axial direction of the shaft.

[0009] It also includes an anti-loosening gasket, which is connected to the adjusting through hole and the first threaded hole through bolts passing through the anti-loosening gasket in sequence.

[0010] The first side plate is provided with a limiting hole toward the sprocket wheel, the limiting hole is threadedly connected with a limiting column, the end surface of the limiting column toward the sprocket wheel is provided with an arc surface, and the arc surface contacts the outermost sprocket wheel on the shaft.

[0011] The drag chain wheel comprises a wheel body and baffles arranged on both sides of the wheel body, and the drag chain is limited to be located between the two baffles.

[0012] The first side plate is provided with a first positioning hole for the shaft to pass through, and one end of the shaft passes through the first positioning hole and is connected with a first fixing nut.

[0013] One end of the transverse portion away from the first side plate is detachably connected to the second side plate, and a second positioning hole for the shaft portion to pass through is provided on the second side plate, and one end of the shaft portion passes through the second positioning hole and is connected to a second fixing nut.

[0014] A sprocket is arranged on the shaft portion between the second side plate and the vertical portion, a chain is mounted on the sprocket, and the axial position of the sprocket relative to the shaft portion is fixed.

[0015] It also includes a column, the bracket is installed in the column, the drag chain includes a drag chain body and a drag chain plate and a drag chain bracket arranged at both ends of the drag chain body, the drag chain plate is connected to the lifting frame of the elevator, and the drag chain bracket is connected to the slider in the column.

[0016] The beneficial effects of the utility model are as follows: in the utility model, the sprocket and the drag sprocket are directly rotatably arranged on the shaft and their axial positions are fixed, thereby reducing the additional bearings and other auxiliary components required by the traditional routing chuck, thereby reducing the total number of parts, not only simplifying the manufacturing process, but also directly reducing the material cost and processing cost. At the same time, since the assembly becomes simpler, the production and assembly time is reduced, and the production cost is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0018] Figure 1 For the first embodiment Figure 1 ;

[0019] Figure 2 is a schematic diagram of the bracket in Example 1;

[0020] Figure 3 For the first embodiment Figure 2 ;

[0021] Figure 4 is a schematic diagram of the drag chain in Example 1;

[0022] Figure 5 It is a schematic diagram of Embodiment 2;

[0023] Figure 6 A schematic diagram of a structure of an adjusting through hole in Embodiment 2;

[0024] Figure 7 It is a schematic diagram of another structure of the adjusting through hole in the second embodiment. DETAILED DESCRIPTION

[0025] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0026] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "plurality" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the description of this application, it should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0029] Embodiment 1:

[0030] like Figures 1 to 4 As shown, a drag chain routing device for an elevator includes a bracket 1, a first side plate 2 and an electric / gas wiring harness 3. The bracket 1 includes a transverse portion 101, a vertical portion 102 arranged below the transverse portion 101, and an axis portion 103 arranged on the vertical portion 102. In the present embodiment, the transverse portion 101 and the vertical portion 102 are T-shaped, and combined with the upper axis portion 103, the bracket 1 is in an I-shape as a whole.

[0031] A sprocket 4 and at least one drag chain wheel 5 are sequentially arranged along one end of the shaft 103, and the drag chain wheel 5 can be added according to actual needs, and the sprocket 4 and the drag chain wheel 5 are fixed in the axial position relative to the shaft 103, the sprocket 4 is equipped with a chain, and the drag chain 6 is arranged on the drag chain 5, and the drag chain 6 is arranged in a hollow manner, and the electric / gas wire harness 3 is arranged in the drag chain 6, which ensures the neatness and order of the wiring. This helps to prevent the wire harnesses from being entangled with each other or excessively bent, thereby reducing the wear of the wire harnesses and the potential risk of wire breakage; the drag chain wheel 5 rotates with the sprocket 4 so that the electric / gas wire harness 3 moves with the drag chain 6, and by directly rotating the sprocket 4 and the drag chain wheel 5 on the shaft 103 and fixing their axial positions, the additional bearings and other auxiliary components required for the traditional wiring chuck are reduced, thereby reducing the total number of parts, which not only simplifies the manufacturing process, but also directly reduces the material cost and processing cost. At the same time, since the assembly becomes simpler, the production and assembly time is reduced, and the production cost is further reduced.

[0032] The first side plate 2 is detachably connected to the transverse portion 101 along the direction of the sprocket wheel 5 .

[0033] The first side plate 2 is provided with a limiting hole 202 toward the sprocket wheel 5, and the limiting hole 202 is internally threadedly connected to a limiting column 203, and the end face of the limiting column 203 toward the sprocket wheel 5 is provided with an arc surface 204, and the arc surface 204 contacts the outermost sprocket wheel 5 on the shaft portion 103, further preventing its axial movement, thereby ensuring the overall stability and reliability of the sprocket system, especially when subjected to dynamic loads, wherein the arc surface 204 can reduce the rotational resistance to the sprocket wheel 5.

[0034] The drag chain wheel 5 includes a wheel body 501 and baffles 502 arranged on both sides of the wheel body 501. The drag chain 6 is limited between the two baffles 502, which can ensure that the drag chain 6 is correctly guided during the movement and limited to move within a predetermined path, thereby preventing the drag chain 6 from jumping off or shifting, improving the operating stability of the device, and also playing a protective role.

[0035] The first side plate 2 is provided with a first positioning hole for the shaft 103 to pass through, and one end of the shaft 103 is connected with a first fixing nut 205 through the first positioning hole, to ensure that the shaft 103 can be accurately aligned and installed in a predetermined position during the assembly process, and at the same time, the connection stability between the shaft 103 and the first side plate 2 is enhanced to avoid tilting of the shaft 103 during operation when it is long.

[0036] The end of the transverse portion 101 away from the first side plate 2 is detachably connected to the second side plate 9 and can be connected by bolts. The second side plate 9 is provided with a second positioning hole for the shaft portion 103 to pass through. One end of the shaft portion 103 passes through the second positioning hole and is connected to a second fixing nut 901. The effect of this structure is the same as the above, and the reliability of the device is further increased.

[0037] A sprocket 4 is provided on the shaft portion 103 between the second side plate 9 and the vertical portion 102 . A chain is mounted on the sprocket 4 . The axial position of the sprocket 4 relative to the shaft portion 103 is fixed to improve the load capacity of the elevator.

[0038] It also includes a column, the bracket 1 is installed in the column, the drag chain 6 includes a drag chain body 601 and a drag chain plate 602 and a drag chain bracket 603 arranged at both ends of the drag chain body 601, the drag chain plate 602 is connected to the lifting frame of the elevator, the lifting frame carries materials for lifting, the drag chain bracket 603 is connected to the slider in the column, the slider is set to slide along the height direction of the column, the drag chain 6 plays a certain protective role on the electrical / gas wiring harness 3 during the movement of the machine, can effectively extend the service life of the mechanical equipment, and ensure the reliability of the equipment.

[0039] Embodiment 2:

[0040] like Figures 5 to 7As shown, in order to improve the application scope of the present device, on the basis of the first embodiment, an adjustment structure is provided on the horizontal portion 101. Specifically, an adjustment through hole is provided on the horizontal portion 101 along the direction of the drag chain wheel 5, and a first threaded hole 201 adapted to the adjustment through hole is provided on the first side plate 2. The first side plate 2 is fixed to the horizontal portion 101 by connecting the first threaded hole 201 through the adjustment through hole with the bolt 7, and the vertical portion 102 and the first side plate 2 form an installation space 104 with adjustable axial length, which can increase or decrease the number of drag chain wheels 5 according to actual needs, and can adapt to drag chain wheels 5 of different sizes or models, reducing the dependence on a specific size of drag chain wheels, so that the device has a wider application scope. Among them, the first side plate 2 can mainly play a protective and positioning role.

[0041] Secondly, when the drag chain wheel 5 or the internal wiring needs to be replaced or maintained, the first side plate 2 can be quickly disassembled by loosening the bolts 7, thereby improving the convenience of maintenance and replacement of parts.

[0042] The adjusting through hole is a long waist hole 105 arranged along the axial direction of the shaft portion 103, and the length of the long waist hole 105 along the axial direction of the shaft portion 103 is greater than the width of the drag chain wheel 5. Figure 6 As shown, it is a long through hole, which can be fine-tuned as needed, increasing the accuracy and flexibility of device adjustment. Figure 6 As shown, the adjustment through holes are a plurality of through holes 106 spaced apart along the axial direction of the shaft portion 103, so that the installation is faster and more accurate, and the debugging time is reduced.

[0043] It also includes an anti-loosening gasket 8, which is connected to the adjustment through hole and the first threaded hole 201 by the bolt 7 passing through the anti-loosening gasket 8 in sequence, and can maintain the tightness of the bolt 7 under the action of vibration and dynamic load to prevent the bolt from loosening by itself, thereby ensuring the long-term stability of the connection. The anti-loosening gasket 8 is made of an elastic material, and its lower end surface is circumferentially distributed with a plurality of convex strips, and the plurality of convex strips diverge outward from the center of the anti-loosening gasket 8. Of course, the anti-loosening gasket 8 can also be a commonly used anti-loosening gasket in the mechanical field.

[0044] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A drag chain routing device for a hoist, characterized in that: The invention comprises a bracket (1), a first side plate (2) and an electric / pneumatic wiring harness (3); the bracket (1) comprises a transverse portion (101), a vertical portion (102) arranged below the transverse portion (101) and an axis portion (103) arranged on the vertical portion (102); a sprocket (4) and at least one drag chain wheel (5) are rotatably arranged along one end of the axis portion (103); the sprocket (4) and the drag chain wheel (5) are both fixed in axial position relative to the axis portion (103); a chain is mounted on the sprocket (4); a drag chain (6) is arranged on the drag chain wheel (5); the drag chain (6) is hollow; the electric / pneumatic wiring harness (3) is arranged in the drag chain (6); the drag chain wheel (5) rotates along with the sprocket (4) so ​​that the electric / pneumatic wiring harness (3) moves along with the drag chain (6).

2. A drag chain routing device for a hoist according to claim 1, characterized in that: The transverse portion (101) is provided with an adjustment through hole along the direction of the drag chain wheel (5), and the first side plate (2) is provided with a first threaded hole (201) matched with the adjustment through hole. The first side plate (2) and the transverse portion (101) are fixed by bolts (7) passing through the adjustment through hole and connecting with the first threaded hole (201), and an installation space (104) with adjustable axial length is formed between the vertical portion (102) and the first side plate (2).

3. A drag chain routing device for a hoist according to claim 2, characterized in that: The adjusting through hole is a long waist hole (105) arranged along the axial direction of the shaft portion (103), and the length of the long waist hole (105) along the axial direction of the shaft portion (103) is greater than the width of the sprocket wheel (5), or the adjusting through hole is a plurality of through holes (106) arranged at intervals along the axial direction of the shaft portion (103).

4. The drag chain routing device of a hoist according to claim 3, characterized in that: It also includes an anti-loosening gasket (8), through which bolts (7) pass in sequence and are connected to the adjustment through hole and the first threaded hole (201).

5. The drag chain routing device of a hoist according to claim 1, characterized in that: The first side plate (2) is provided with a limiting hole (202) facing the sprocket wheel (5), the limiting hole (202) is internally threadedly connected to a limiting column (203), the end surface of the limiting column (203) facing the sprocket wheel (5) is provided as an arc surface (204), and the arc surface (204) is in contact with the outermost sprocket wheel (5) on the shaft portion (103).

6. The drag chain routing device of a hoist according to claim 1, characterized in that: The drag chain wheel (5) comprises a wheel body (501) and baffles (502) arranged on both sides of the wheel body (501), and the drag chain (6) is limited between the two baffles (502).

7. The drag chain routing device of a hoist according to claim 1, characterized in that: The first side plate (2) is provided with a first positioning hole for the shaft portion (103) to pass through, and one end of the shaft portion (103) passes through the first positioning hole and is connected to a first fixing nut (205).

8. The drag chain routing device of a hoist according to claim 1, characterized in that: An end of the transverse portion (101) away from the first side plate (2) is detachably connected to a second side plate (9), a second positioning hole for the shaft portion (103) to pass through is provided on the second side plate (9), and one end of the shaft portion (103) passes through the second positioning hole and is connected to a second fixing nut (901).

9. The drag chain routing device of a hoist according to claim 8, characterized in that: A sprocket (4) is arranged on the shaft portion (103) between the second side plate (9) and the vertical portion (102), a chain is mounted on the sprocket (4), and the axial position of the sprocket (4) relative to the shaft portion (103) is fixed.

10. The drag chain routing device of a hoist according to claim 1, characterized in that: It also includes a column, the bracket (1) is installed in the column, the drag chain (6) includes a drag chain body (601) and a drag chain plate (602) and a drag chain bracket (603) arranged at both ends of the drag chain body (601), the drag chain plate (602) is connected to the lifting frame of the lifting machine, and the drag chain bracket (603) is connected to the slider in the column.

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