Rope releasing protection device for traction sheave of elevator

Abstract

The utility model provides an elevator traction sheave rope releasing protection device which comprises a protection shell, a plurality of positioning guide mechanisms are arranged on the protection shell corresponding to steel wire ropes, and guide pieces are arranged on the positioning guide mechanisms corresponding to the positions of rope grooves and corresponding to the steel wire ropes. A fixing mechanism is arranged on one side of the protective shell corresponding to the traction wheel, and a plurality of limiting pieces are arranged on the inner side of the protective shell corresponding to a rope groove in the traction wheel. By arranging the protective shell, the rope groove of the traction wheel is protected when a steel wire rope is installed on an elevator, the rope groove of the traction wheel is prevented from being abraded in advance, the situation that the rope groove of the traction wheel reaches the service life in advance is effectively prevented, the rope groove can be detached only by detaching the two bolts after use, and operation is convenient. The device has the advantages of simple structure, convenience in assembly and disassembly, low cost, safety and convenience.

Description

Technical Field

[0001] The utility model relates to the field of elevators, in particular to an elevator traction wheel rope release protection device. Background Art

[0002] The traction sheave is the rope sheave on the traction machine, also called the traction sheave or driving sheave; it is the device for transmitting traction power in the elevator, and uses the friction between the traction wire rope and the rope groove on the traction wheel rim to transmit power. During the installation of the elevator, one end of the wire rope is fixed to the elevator car and the other end is fixed to the counterweight. Since the traction sheave is fixed and cannot rotate during the rope release process, the relative sliding and shaking of the wire rope during the rope release process will cause wear on the rope groove on the traction sheave, greatly reducing the service life of the rope groove of the traction sheave, causing the traction sheave to reach the replacement time ahead of schedule.

[0003] At present, there are some protective devices for rope grooves during the rope releasing process. For example, in the patent application document with application date of 2022.8.26, application number of 202211037359.7, and patent name of traction wheel groove anti-wear device, a device for protecting the rope groove is disclosed. However, it is protected by placing a flexible protective belt in the rope groove. During use, one belt must be placed in each rope groove, and the two ends of the belt need to be buckled, which is very troublesome to operate. Summary of the invention

[0004] In order to solve the problems existing in the background technology, the utility model proposes an elevator traction sheave rope release protection device.

[0005] An elevator traction wheel rope release protection device comprises a protection shell, a plurality of positioning guide mechanisms are arranged on the protection shell corresponding to the steel wire ropes, guide members are arranged on the positioning guide mechanisms corresponding to the positions of rope grooves corresponding to the steel wire ropes, a fixing mechanism is arranged on one side of the protection shell corresponding to the traction wheel, and a plurality of limit members are arranged on the inner side of the protection shell corresponding to the rope grooves on the traction wheel.

[0006] Based on the above, the protective shell includes an arc-shaped guard plate and a fan-shaped side baffle, the guard plate is fitted with the outer circumference of the traction wheel, and the side baffle is arranged on one side of the guard plate; the positioning guide mechanism is arranged on the outer side surface of the guard plate, the limit member is arranged on the inner side surface of the guard plate, and the fixing mechanism is arranged on the side baffle.

[0007] Based on the above, the positioning guide mechanism is a guide column, the guide member is a guide groove, and a plurality of guide grooves are respectively arranged at positions on the guide column corresponding to the rope grooves.

[0008] Based on the above, the guide column axis is arranged on the guard plate parallel to the traction wheel axis direction; there are at least three guide columns, one guide column is arranged at the top center of the guard plate, and two guide columns are arranged at both ends of the guard plate.

[0009] Based on the above, the fixing mechanism includes bolts and nuts, a through hole is provided on one side of the protective shell, the nut is provided on the side of the protective shell close to the traction wheel corresponding to the through hole, the position of the through hole corresponds to the threaded hole on the traction wheel, and the bolt is removably inserted into the through hole, the nut and the threaded hole of the traction wheel.

[0010] Based on the above, the limiting member is a strip-shaped limiting protrusion, and the strip-shaped limiting protrusion is arranged corresponding to the rope groove on the traction wheel.

[0011] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model provides a protective shell to protect the rope groove of the traction wheel when the elevator installs the wire rope, thereby avoiding premature wear of the rope groove of the traction wheel and effectively preventing the rope groove of the traction wheel from reaching the service life prematurely. After use, only two bolts need to be removed for removal, and the utility model has the advantages of simple structure, convenient loading and unloading, low cost, safety and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a structural schematic diagram of the inner side of the protective shell of the utility model.

[0014] Explanation of the reference numerals: 1. traction wheel; 2. guide column; 3. guard plate; 4. side baffle; 5. bolt; 6. threaded hole; 7. nut; 8. guide groove; 9. limiting protrusion. DETAILED DESCRIPTION

[0015] 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 in 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.

[0016] like Figure 1-Figure 2 As shown, an elevator traction wheel rope release protection device includes a protection shell, and a plurality of positioning guide mechanisms are provided on the protection shell corresponding to the steel wire ropes, and guide members are provided on the positioning guide mechanisms corresponding to the positions of the rope grooves and corresponding to the steel wire ropes, a fixing mechanism is provided on one side of the protection shell corresponding to the traction wheel 1, and a plurality of limit members are provided on the inner side of the protection shell corresponding to the rope grooves on the traction wheel 1.

[0017] When installing the rope on site (lowering the wire rope), place the protective shell on the traction sheave 1, and make the limiter in the rope groove of the traction sheave 1, and then fix the protective shell on the traction sheave 1 through the fixing mechanism. After fixing, use the guide on the positioning guide mechanism to replace the rope groove of the traction sheave 1 to lower the wire rope, wherein the groove shape of the guide is consistent with the groove shape of the traction sheave 1. After the wire rope is lowered, use the manual release brake of the traction machine to rotate the traction sheave 1 180°. Since the protective shell is fixed on the traction sheave 1, the protective shell will rotate with the traction sheave 1. At this time, the wire rope will automatically wrap around the traction sheave 1. After the rope is released, the protective shell can be removed, which can effectively avoid the wear of the rope groove of the traction sheave 1 caused by the lowering of the wire rope.

[0018] Specifically, the protective shell includes an arc-shaped guard plate 3 and a fan-shaped side baffle 4. The arc-shaped guard plate 3 fits the outer circumference of the traction wheel 1, and the arc-shaped guard plate 3 is used to fit and be placed on the circumferential surface of the traction wheel 1. The positioning and guiding mechanism is arranged on the outer side of the guard plate 3, and the limiter is arranged on the inner side of the guard plate 3. In this embodiment, the positioning and guiding mechanism is a guide column 2, and the axis of the guide column 2 is arranged on the guard plate 3 in parallel with the axis of the traction wheel 1, so that the multiple guide grooves 8 on the guide column 2 can correspond to the position of the rope groove on the traction wheel 1 in parallel. In practice, the number of guide columns 2 can be set as needed. In this embodiment, there are at least three guide columns 2, one guide column 2 is arranged at the top center of the guard plate 3, and two guide columns 2 are arranged at both ends of the guard plate 3, so as to facilitate the positioning and guiding of the wire rope during the rope release process. The guide member is a guide groove 8, and a plurality of guide grooves 8 are respectively arranged at the positions corresponding to the rope grooves on the guide column 2. During the rope release process, the guide groove 8 replaces the rope groove on the traction wheel 1.

[0019] The side baffle plate 4 is fan-shaped and is arranged on one side of the guard plate 3. The fixing mechanism is arranged on the side baffle plate 4 and is used to fix the protective shell on the traction wheel 1. Specifically, the fixing mechanism includes a bolt 5 and a nut 7. A through hole is arranged on one side of the protective shell. The nut 7 is arranged on the side of the protective shell close to the traction wheel 1 corresponding to the through hole. Since the middle part of the side of the traction wheel 1 is a recessed design, the nut 7 is arranged on the side of the side baffle plate 4 close to the traction wheel 1, which is convenient for fixing and plays a certain supporting role. The position of the through hole corresponds to the threaded hole 6 on the traction wheel 1 (the threaded hole 6 on the side of the traction wheel 1). The bolt 5 is used to be detachably inserted into the through hole, the nut 7 and the threaded hole 6 of the traction wheel 1. The fixing of the protective shell can be achieved by the bolt 5, the through hole, the nut 7 and the threaded hole 6 on the traction wheel 1.

[0020] In reality, in order to prevent the guard plate 3 from sliding in the axial direction relative to the traction wheel 1, a plurality of limit members are arranged on the inner side of the guard plate 3. In this embodiment, the limit member is a strip-shaped limit protrusion 9, and the strip-shaped limit protrusion 9 is arranged corresponding to the rope groove on the traction wheel 1. During the rope release process, since the wire rope is pressed against the positioning column on the guard plate 3, the limit protrusion 9 is fixed in the rope groove, and the guard plate 3 cannot move axially relative to the traction wheel 1. Due to the effect of the fixing mechanism, the protective shell as a whole cannot move in other dimensions relative to the traction wheel 1, thereby completing the fixing of the protective shell as a whole. After the rope is released, the traction wheel 1 is manually released and the traction wheel is rotated 1180°. After the protective shell rotates with the traction wheel 1, the wire rope can fall into the rope groove on the traction wheel 1. At this time, the protective shell is separated from the wire rope. After loosening the two bolts 5, the protective shell can be removed, which is simple and convenient.

[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An elevator traction sheave rope release protection device, characterized in that: It includes a protective shell, on which a plurality of positioning and guiding mechanisms are provided corresponding to the steel wire ropes, on which the positioning and guiding mechanisms are provided with guide members corresponding to the positions of the rope grooves corresponding to the steel wire ropes, a fixing mechanism is provided on one side of the protective shell corresponding to the traction wheel, and a plurality of limiting members are provided on the inner side of the protective shell corresponding to the rope grooves on the traction wheel.

2. The elevator traction sheave rope release protection device according to claim 1, characterized in that: The protective shell includes an arc-shaped guard plate and a fan-shaped side baffle, the guard plate is in contact with the outer circumference of the traction wheel, and the side baffle is arranged on one side of the guard plate; the positioning guide mechanism is arranged on the outer side surface of the guard plate, the limit member is arranged on the inner side surface of the guard plate, and the fixing mechanism is arranged on the side baffle.

3. The elevator traction sheave rope release protection device according to claim 1, characterized in that: The positioning guide mechanism is a guide column, the guide member is a guide groove, and a plurality of guide grooves are respectively arranged at positions on the guide column corresponding to the rope grooves.

4. The elevator traction sheave rope release protection device according to claim 3 is characterized in that: The guide column is arranged on the guard plate with its axis parallel to the axis of the traction wheel; there are at least three guide columns, one guide column is arranged at the top center of the guard plate, and two guide columns are arranged at both ends of the guard plate.

5. The elevator traction sheave rope release protection device according to claim 1, characterized in that: The fixing mechanism includes a bolt and a nut. A through hole is provided on one side of the protective shell. The nut is provided on the side of the protective shell close to the traction wheel corresponding to the through hole. The position of the through hole corresponds to the threaded hole on the traction wheel. The bolt is detachably inserted into the through hole, the nut and the threaded hole of the traction wheel.

6. The elevator traction sheave rope release protection device according to claim 1, characterized in that: The limiting member is a strip-shaped limiting protrusion, and the strip-shaped limiting protrusion is arranged corresponding to the rope groove on the traction wheel.

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