Elevator rope wheel protection device and elevator rope wheel mechanism thereof

Abstract

The utility model relates to the technical field of elevators, in particular to an elevator rope wheel protection device and an elevator rope wheel mechanism thereof. The elevator rope wheel protection device comprises a protection cover and a measuring scale, the protection cover is arranged on the outer side of an elevator rope wheel in a sleeving mode, a protection cavity is formed in the protection cover, at least one side of the protection cover is provided with a measuring hole, and the measuring scale extends into the protection cavity through the measuring hole and can abut against the elevator rope wheel. The device has the advantages that the protective cover is arranged on the outer side of the elevator rope wheel in a sleeving mode so as to protect the elevator rope wheel, prevent foreign matter from entering the protective cover to be stuck and prevent a human body from being injured due to contact, and the measuring scale extends into the protective cover, abuts against the elevator rope wheel and can extend into the protective cavity from the outer side of the protective cover; therefore, the scales on the measuring scale represent the distance between the elevator rope sheave and the protective cover, and a worker can adjust the assembly position of the elevator rope sheave according to the distance between the elevator rope sheave and the protective cover measured by the measuring scale.

Description

Technical Field

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

[0002] The elevator sheave protection device is a protective device placed in the machine room, car frame or counterweight system to protect the sheave, prevent foreign objects from entering and getting stuck, and at the same time prevent human contact and injury.

[0003] The existing elevator sheave protection device cannot observe and measure the relative installation positions of the internal sheave, wire rope and protection device. Therefore, there are still risks such as scratching, abnormal noise and wire rope jumping after installation. Usually, the installer needs to debug repeatedly and find a reasonable installation and matching position through continuous attempts, which is time-consuming and labor-intensive, and the assembly effect is still not good. Utility Model Content

[0004] Based on this, the utility model provides an elevator rope sheave protection device for the above-mentioned technical problems.

[0005] An elevator sheave protection device comprises: a protective cover, which is sleeved on the outside of the elevator sheave, has a protective cavity inside the protective cover, and has a measuring hole on at least one side of the protective cover; and a measuring ruler, which extends into the protective cavity through the measuring hole and can abut against the elevator sheave.

[0006] In this way, the guard cover is arranged on the outside of the elevator rope sheave to protect the elevator rope sheave, prevent foreign objects from entering and getting stuck, and at the same time prevent human body from being injured by contact. The measuring ruler extends into the inside of the guard cover and abuts against the elevator rope sheave, and the measuring ruler can be extended into the protection cavity from the outside of the guard cover. Therefore, the scale on the measuring ruler represents the distance from the elevator rope sheave to the guard cover. The staff can adjust the assembly position of the elevator rope sheave by measuring the distance between the elevator rope sheave and the guard cover with the measuring ruler.

[0007] In one embodiment, the shield includes a front side plate, a right side plate, a rear side plate and a left side plate connected in sequence, the front side plate and the rear side plate are located on two opposite sides, and the left side plate and the right side plate are located on two opposite sides;

[0008] The shield also includes an upper side plate, which is connected to the front side plate, the right side plate, the rear side plate and the left side plate.

[0009] In one embodiment, the measuring hole is formed on the upper side plate, and a first observation hole is formed on at least one of the front side plate and the rear side plate, and the first observation hole is arranged close to the upper side plate.

[0010] In one embodiment, the front side panel and the rear side panel are respectively provided with the measuring holes, the left side panel and the right side panel are both provided with a plurality of second observation holes, and the second observation holes are close to the front side panel and the rear side panel and are respectively arranged at the front and rear ends of the left side panel and the front and rear ends of the right side panel.

[0011] In one embodiment, the measuring hole is a rectangular structure or a waist-shaped structure.

[0012] In one embodiment, a plurality of the measuring holes are opened on the upper side plate, and the plurality of the measuring holes are arranged at intervals along the length direction of the side plate; and / or,

[0013] A plurality of the measuring holes are provided on the front side plate and the rear side plate, and at least two of the measuring holes on the front side plate are arranged at an angle, and / or at least two of the measuring holes on the rear side plate are arranged at an angle.

[0014] In one embodiment, the elevator rope sheave protection device further includes a rope blocking rod, and the rope blocking rod is horizontally penetrated on both sides of the protective cover.

[0015] The utility model also provides an elevator sheave mechanism, including the elevator sheave protection device as described above, and also including a beam frame, an elevator sheave and a rotating shaft, wherein the beam frames are two and are arranged at intervals, the elevator sheave is located between the two beam frames, the rotating shaft is passed through the elevator sheave, and the two ends of the rotating shaft are respectively rotatably connected to the beam frames on both sides, the guard cover is connected to the beam frame, and the elevator sheave is located inside the guard cover.

[0016] In one embodiment, a through hole is provided on the shield, and the center of the through hole is coaxially arranged with the axis of the rotating shaft.

[0017] In one embodiment, the elevator rope sheave protection device also includes a mounting bracket, which is located at both ends of the length direction of the guard, and the mounting bracket includes a connecting section and a supporting section that are connected to each other and set at an angle, the connecting section is connected to the guard, and the supporting section is connected to the beam frame.

[0018] Compared with the prior art, the utility model provides a measuring hole on the shield of the elevator rope pulley, into which a measuring ruler can be inserted, and a worker can observe the reading on the measuring ruler and the position of the measuring ruler in the protective cavity inside the shield from the outside of the shield, thereby determining the assembly position of the elevator rope pulley, thereby flexibly adjusting the installation of the elevator rope pulley. In addition, multiple measuring holes are provided on multiple side panels of the shield, so that the measuring ruler can measure and determine the position of the elevator rope pulley at multiple angles through the measuring holes in multiple directions, so as to further clarify the assembly position of the elevator rope pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of one embodiment of the elevator rope sheave protection device provided by the utility model;

[0020] Figure 2 A side view of one embodiment of the elevator rope sheave protection device provided by the utility model;

[0021] Figure 3 A front view of one embodiment of the elevator rope sheave protection device provided by the utility model;

[0022] Figure 4 A top view of one embodiment of the elevator rope sheave protection device provided by the utility model, and showing one of the elevator rope sheaves;

[0023] Figure 5 A front view of one embodiment of the elevator sheave mechanism provided by the utility model;

[0024] Figure 6 This is a structural schematic diagram of one embodiment of the elevator rope sheave mechanism provided by the utility model.

[0025] The symbols in the figure mean the following:

[0026] 100. Elevator rope sheave protection device; 10. Protective cover; 11. Protective cavity; 12. Measuring hole; 13. Front side plate; 14. Right side plate; 141. First observation hole; 142. Second observation hole; 15. Rear side plate; 16. Left side plate; 17. Upper side plate; 18. Through hole; 19. Round hole; 20. Measuring ruler; 30. Rope stop rod; 40. Mounting bracket; 41. Connecting section; 411. First mounting hole; 412. Flanging; 42. Support section; 421. Second mounting hole; 200. Elevator rope sheave mechanism; 201. Beam frame; 202. Elevator rope sheave; 203. Rotating shaft. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it may be directly on the other mechanism or there may be a central mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a central mechanism at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0032] The utility model provides an elevator rope sheave protection device 100, comprising a protective cover 10 for protecting an elevator rope sheave 202 and a measuring ruler 20, wherein the measuring ruler 20 can penetrate the protective cover 10 and extend into the interior of the protective cover 10, so as to measure and determine the position of the elevator rope sheave 202.

[0033] See also Figure 1-Figure 4 , the shield 10 is sleeved on the outside of the elevator rope sheave 202, and the shield 10 has a protection cavity 11. At least one side of the shield 10 is provided with a measuring hole 12. The measuring ruler 20 extends into the protection cavity 11 through the measuring hole 12 and can abut against the elevator rope sheave 202. In this way, the shield 10 is sleeved on the outside of the elevator rope sheave 202 to protect the elevator rope sheave 202, prevent foreign objects from entering and getting stuck, and at the same time prevent human body from being injured due to contact. The measuring ruler 20 extends into the shield 10 and abuts against the elevator rope sheave 202, and the measuring ruler 20 can extend from the outside of the shield 10 into the protection cavity 11, so the scale on the measuring ruler 20 represents the distance from the elevator rope sheave 202 to the shield 10, and the staff can adjust the assembly position of the elevator rope sheave 202 by measuring the distance between the elevator rope sheave 202 and the shield 10 by the measuring ruler 20.

[0034] The measuring ruler 20 is configured as a ruler structure, such as a steel ruler or a plastic ruler structure, and only needs to be able to pass through the measuring hole 12 and measure the distance between the elevator sheave 202 and the guard 10 .

[0035] The shield 10 includes a front side plate 13, a right side plate 14, a rear side plate 15 and a left side plate 16 connected in sequence, the front side plate 13 and the rear side plate 15 are located on opposite sides, and the left side plate 16 and the right side plate 14 are located on opposite sides. In this embodiment, the shield 10 is a rectangular structure, so the rectangular frame is formed by welding the four side plates of front, back, left and right, which is convenient for processing.

[0036] The shield 10 further includes an upper side plate 17 , which is connected to the front side plate 13 , the right side plate 14 , the rear side plate 15 and the left side plate 16 to close the upward opening of the protection cavity 11 .

[0037] In other embodiments, the shield 10 may also be configured to have other shapes, such as a structure composed of multiple arc surfaces, and is not limited to the above-mentioned rectangular frame structure.

[0038] The upper side plate 17 is provided with a measuring hole 12, and at least one of the front side plate 13 and the rear side plate 15 is provided with a first observation hole 141, and the first observation hole 141 is arranged close to the upper side plate 17. In this way, the measuring ruler 20 can extend downward from the upper side plate 17 into the protective cover 10 to measure the distance between the elevator sheave 202 and the upper side plate 17.

[0039] Specifically, a plurality of measuring holes 12 are provided on the upper side plate 17, and the plurality of measuring holes 12 are divided into two groups, and the two groups of measuring holes 12 are respectively located at the two ends of the length direction of the upper side plate 17. In this way, when two elevator sheaves 202 are provided in the protective cover 10, the measuring ruler 20 can measure the positions of the two elevator sheaves 202 from the front and rear ends of the upper side plate 17.

[0040] Furthermore, in the present embodiment, each group of measuring holes 12 has at least three measuring holes 12 , and the three measuring holes 12 are evenly spaced apart, so that the measuring ruler 20 can measure multiple positions of the elevator rope sheave 202 .

[0041] For the measuring hole 12 opened in the upper side plate 17, a first observation hole 141 needs to be opened in at least one of the front side plate 13 and the rear side plate 15. Since the measuring ruler 20 is inserted from top to bottom, it is more intuitive to observe from the front side or the rear side. In this embodiment, the first observation hole 141 is opened in both the front side plate 13 and the rear side plate 15.

[0042] In another embodiment, measuring holes 12 are respectively provided on the front side plate 13 and the rear side plate 15, that is, the measuring holes 12 are provided along the horizontal direction, so that the measuring ruler 20 can be inserted into the measuring hole 12 in the front side plate 13 from the front side to the rear side along the horizontal direction, or inserted into the measuring hole 12 in the rear side plate 15 from the rear side to the front side from the back to the front, so as to perform a full-scale detection of the elevator rope sheave 202 in the protective cover 10.

[0043] Furthermore, in order to facilitate the observation of the position of the measuring ruler 20 inserted in the horizontal direction, a plurality of second observation holes 142 are provided on both the left side plate 16 and the right side plate 14, and the second observation holes 142 are arranged close to the front side plate 13 and the rear side plate 15 at the front and rear ends of the left side plate 16 and the front and rear ends of the right side plate 14. In this way, the positions of the second observation holes 142 are adapted to the positions of the measuring holes 12 on the front side plate 13 and the rear side plate 15, which are closer and convenient for observation.

[0044] Preferably, the measuring hole 12 is configured as a rectangular structure or a waist-shaped structure to be adapted to the measuring ruler 20 which is generally flat in shape.

[0045] Furthermore, a plurality of measuring holes 12 are provided on both the front side plate 13 and the rear side plate 15, and at least two measuring holes 12 on the front side plate 13 are arranged at an angle, and / or at least two measuring holes 12 on the rear side plate 15 are arranged at an angle. In this way, the measuring holes 12 at two different angles enable the measuring ruler 20 to extend into the protective cavity 11 at different angles and states to measure the elevator rope sheave 202, so as to obtain more data about the elevator rope sheave 202, thereby making the determination of the assembly position of the elevator rope sheave 202 more accurate.

[0046] In this embodiment, two measuring holes 12 are provided on the front side plate 13, and the two measuring holes 12 are vertically arranged. Two measuring holes 12 are provided on the rear side plate 15, and the two measuring holes 12 are vertically arranged. In other embodiments, the two measuring holes 12 located on the front side plate 13 or the rear side plate 15 can also be arranged at an angle of 30°, 45° or 60°, etc., and are not limited to the vertical arrangement mentioned above.

[0047] The elevator sheave protection device 100 further includes a rope blocking rod 30, which is horizontally disposed on both sides of the protective cover 10. In this way, the rope blocking rod 30 can prevent the steel wire rope on the elevator sheave 202 from escaping from the elevator sheave 202. Therefore, in order to make the rope blocking rod 30 have a better limiting effect on the steel wire rope, it is preferred that the maximum distance between the rope blocking rod 30 and the elevator sheave 202 needs to be smaller than the diameter of the steel wire rope, so that the steel wire rope cannot escape from the gap between the rope blocking rod 30 and the elevator sheave 202.

[0048] Specifically, a circular hole 19 is provided on both the right side plate 14 and the left side plate 16 of the shield 10, and the plurality of circular holes 19 on the left side plate 16 and the right side plate 14 are arranged one by one so that the rope blocking rod 30 can enter from the circular hole 19 on one side and then pass through the circular hole 19 on the other side. In this embodiment, the rope blocking rod 30 is also configured as a cylindrical rod structure and can be made of iron or stainless steel. In other embodiments, the rope blocking rod 30 can also be a sheet metal bending bracket. After the rope blocking rod 30 passes through the circular hole 19, the two ends of the rope blocking rod 30 are fixed by fixing pins (not shown in the figure).

[0049] Furthermore, a plurality of circular holes 19 are provided at intervals along the horizontal direction on both the right side plate 14 and the left side plate 16. When the position of the elevator rope wheel is determined, the rope blocking rod 30 can select a suitable circular hole 19 to penetrate into, so as to ensure that the gap between the rope blocking rod 30 and the elevator rope wheel 202 is smaller than the diameter of the wire rope, thereby ensuring that the rope blocking rod 30 can stop the wire rope from escaping from the elevator rope wheel 202. Furthermore, a plurality of circular holes 19 are provided at intervals along the vertical direction below the second observation hole 142 provided on the left side plate 16 and the right side plate 14, so that the rope blocking rod 30 can select a suitable circular hole 19 to penetrate into.

[0050] See also Figure 5-Figure 6The utility model also provides an elevator protection device, including a beam frame 201, an elevator rope sheave 202 and a rotating shaft 203. The beam frames 201 are two and arranged at intervals. The elevator rope sheave 202 is located between the two beam frames 201. The rotating shaft 203 is passed through the elevator rope sheave 202, and the two ends of the rotating shaft 203 are respectively rotatably connected to the beam frames 201 on both sides. The shield 10 is connected to the beam frame 201, and the elevator rope sheave 202 is located inside the shield 10. In this way, the two beam frames 201 arranged at intervals can support the two rotating shafts 203, and the two ends of the two rotating shafts 203 are subjected to the same stable supporting effect. The elevator rope sheave 202 rotates around the rotating shaft 203, so that the elevator rope sheave 202 can rotate relative to the beam frame 201 and the shield 10 connected to the beam frame 201.

[0051] The shield 10 is provided with a through hole 18, the center of which is concentric with the axis of the rotating shaft 203. Therefore, the rotating shaft 203 can extend from the through hole 18, and the rotating shaft 203 will not interfere with the shield 10 during rotation to ensure the free rotation of the elevator sheave 202.

[0052] In this embodiment, there are two elevator rope pulleys 202 and two rotating shafts 203. Each rotating shaft 203 is inserted into one elevator rope pulley 202, and two through holes 18 are respectively provided on the left side plate 16 and the right side plate 14 of the protective cover 10. One rotating shaft 203 passes through the through hole 18 on the left side plate 16 and the through hole 18 on the right side plate 14, and the through hole 18 on the left side plate 16, the rotating shaft 203 and the corresponding through hole 18 on the right side plate 14 are all coaxially arranged.

[0053] Preferably, the through hole 18 is configured to be semicircular, and the diameter of the through hole 18 is larger than the outer diameter of the rotating shaft 203 to ensure that the rotating shaft 203 does not rub against the hole wall of the through hole 18 during rotation.

[0054] The elevator sheave protection device 100 further includes a mounting bracket 40, which is located at both ends of the length direction of the shield 10, and the mounting bracket 40 includes a connecting section 41 and a supporting section 42 which are connected to each other and arranged at an angle, the connecting section 41 is connected to the shield 10, and the supporting section 42 is connected to the beam 201. The mounting bracket 40 makes the connection between the shield 10 and the beam 201 more stable, and the connecting section 41 is used to connect to the mounting bracket 40, and the supporting section 42 is used to connect to the beam 201, and the two cooperate to support the shield 10, so that the relative position of the shield 10 is more stable.

[0055] In one of the embodiments, a first mounting hole 411 is provided on the connecting section 41, and a fastener (not shown in the figure) is inserted into the first mounting hole 411, and the fastener makes the connection between the connecting section 41 and the shield 10 stable. The fasteners are grouped in pairs to improve the torsion resistance of the connection; in one of the embodiments, at least two groups of fasteners are provided. The upper end of the connecting section 41 is bent outward to form a flange 412, and the flange 412 makes the structural strength of the connecting section 41 higher and the torsion resistance better. A second mounting hole 421 is provided on the supporting section 42, and the second mounting hole 421 is also inserted into the fastener to ensure the connection between the supporting section 42 and the beam frame 201, and the second mounting hole 421 is a waist hole structure, so the fastener can move in the waist hole along the length direction of the waist hole to adjust its position, so as to have better adaptability and more flexible installation of the fastener.

[0056] Compared with the prior art, the utility model provides a measuring hole 12 on the protective cover 10 of the elevator rope sheave 202, and the measuring ruler 20 can be inserted into the measuring hole 12, and the staff can observe the reading on the measuring ruler 20 and the position of the measuring ruler 20 in the protective cavity 11 inside the protective cover 10 from the outside of the protective cover 10, so as to determine the assembly position of the elevator rope sheave 202, thereby flexibly adjusting the installation of the elevator rope sheave 202. In addition, multiple measuring holes 12 are provided on multiple side panels of the protective cover 10, so the measuring ruler 20 can measure and determine the position of the elevator rope sheave 202 at multiple angles through the measuring holes 12 in multiple directions, so as to further clarify the assembly position of the elevator rope sheave 202.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An elevator sheave protection device, characterized in that: include: A protective cover (10), wherein the protective cover (10) is sleeved on the outer side of the elevator rope wheel (202), the protective cover (10) has a protective cavity (11) in it, and at least one side of the protective cover (10) is provided with a measuring hole (12); A measuring ruler (20), the measuring ruler (20) extends into the protection cavity (11) through the measuring hole (12) and can abut against the elevator rope wheel (202).

2. The elevator sheave protection device according to claim 1, characterized in that: The shield (10) comprises a front side plate (13), a right side plate (14), a rear side plate (15) and a left side plate (16) which are connected in sequence, wherein the front side plate (13) and the rear side plate (15) are located on two opposite sides, and the left side plate (16) and the right side plate (14) are located on two opposite sides; The shield (10) further comprises an upper side plate (17), wherein the upper side plate (17) is connected to the front side plate (13), the right side plate (14), the rear side plate (15) and the left side plate (16).

3. The elevator sheave protection device according to claim 2, characterized in that: The upper side plate (17) is provided with the measuring hole (12), and at least one of the front side plate (13) and the rear side plate (15) is provided with a first observation hole (141), and the first observation hole (141) is arranged close to the upper side plate (17).

4. The elevator sheave protection device according to claim 2 or 3, characterized in that: The front side plate (13) and the rear side plate (15) are respectively provided with the measuring holes (12), and the left side plate (16) and the right side plate (14) are both provided with a plurality of second observation holes (142), and the second observation holes (142) are close to the front side plate (13) and the rear side plate (15) and are respectively arranged at the front and rear ends of the left side plate (16) and the front and rear ends of the right side plate (14).

5. The elevator sheave protection device according to claim 2, characterized in that: The measuring hole (12) is a rectangular structure or a waist-shaped structure.

6. The elevator sheave protection device according to claim 5, characterized in that: A plurality of the measuring holes (12) are opened on the upper side plate (17), and the plurality of the measuring holes (12) are arranged at intervals along the length direction of the side plate; and / or, A plurality of measuring holes (12) are provided on the front side plate (13) and the rear side plate (15), and at least two of the measuring holes (12) on the front side plate (13) are arranged at an angle, and / or at least two of the measuring holes (12) on the rear side plate (15) are arranged at an angle.

7. The elevator sheave protection device according to claim 1, characterized in that: The elevator rope sheave protection device further comprises a rope blocking rod (30), wherein the rope blocking rod (30) is horizontally penetrated on both sides of the protective cover (10).

8. An elevator sheave (202) mechanism, characterized in that: The elevator rope sheave protection device comprises the elevator rope sheave protection device as described in any one of claims 1 to 7, and further comprises a beam frame (201), an elevator rope sheave (202) and a rotating shaft (203), wherein the beam frames (201) are two and are arranged at intervals, the elevator rope sheave (202) is located between the two beam frames (201), the rotating shaft (203) is passed through the elevator rope sheave (202), and the two ends of the rotating shaft (203) are respectively rotatably connected to the beam frames (201) on both sides, the protective cover (10) is connected to the beam frame (201), and the elevator rope sheave (202) is located inside the protective cover (10).

9. The elevator sheave (202) mechanism according to claim 8, characterized in that: The protective cover (10) is provided with a through hole (18), and the center of the through hole (18) is arranged concentrically with the axis of the rotating shaft (203).

10. The elevator sheave (202) mechanism according to claim 8, characterized in that: The elevator rope sheave protection device also includes a mounting bracket (40), the mounting bracket (40) is located at both ends of the length direction of the protective cover (10), and the mounting bracket (40) includes a connecting section (41) and a supporting section (42) that are connected to each other and arranged at an angle, the connecting section (41) is connected to the protective cover (10), and the supporting section (42) is connected to the beam frame (201).

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