Elevator counterweight anti-ropes pulley anti-drop protection structure

Abstract

The utility model relates to the field of elevators, and discloses an anti-slip protection structure for an elevator counterweight anti-ropes pulley, comprising two clamping plates arranged opposite to each other, an installation area formed between the two clamping plates, an anti-ropes pulley arranged in the installation area, two ends of a wheel shaft of the anti-ropes pulley extending out of the installation area, a first baffle plate being installed on the outer side surface of the clamping plate, a first anti-slip structure being provided on the first baffle plate, first grooves being respectively provided on the two protruding ends of the wheel shaft corresponding to the first anti-slip structure, a part of the first anti-slip structure being clamped in the corresponding first groove, and a second anti-slip structure being further provided on the two protruding ends of the wheel shaft, when the wheel shaft moves along its axial direction, the two second anti-slip structures form opposite forces at the two ends of the wheel shaft, thereby restraining the axial movement of the wheel shaft, the double protection structure provided by the application has high strength, excellent anti-slip performance, high safety, simple structure, and is suitable for large-scale production and application.

Description

Technical Field

[0001] The utility model relates to the field of elevators, in particular to an anti-drop protection structure for an elevator counterweight reverse rope pulley. Background Art

[0002] Modern elevators are mainly composed of traction machines, guide rails, counterweight devices, safety devices, signal control systems, cars and hall doors. Among them, the counterweight device is an important part of the elevator traction system. Its function is to reduce the power of the traction motor and the torque on the traction wheel and worm gear. The counterweight device is located in the hoistway and is connected to the car through the traction rope and the traction wheel. With the development of elevator technology, elevators have higher and higher requirements for operational safety. The elevator counterweight traction wheel and its bearings are operating wear parts, and they need to be prevented from causing safety accidents under extreme conditions. Utility Model Content

[0003] The purpose of the utility model is to overcome the problem of insufficient anti-slip protection of the counter-ropes in the prior art, and to provide an anti-slip protection structure for the counter-ropes of an elevator counterweight, which can form a double protection structure for the counter-ropes, effectively ensure the safe operation of the counter-ropes, and greatly avoid safety accidents even under extreme conditions.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an anti-slip protection structure for an elevator counterweight anti-ropes pulley, wherein the anti-ropes pulley comprises two clamping plates arranged opposite to each other, an installation area is formed between the two clamping plates, an anti-ropes pulley is arranged in the installation area, two ends of the wheel shaft of the anti-ropes pulley extend out of the installation area, a first baffle is installed on the outer side surface of the clamping plate, a first anti-slip structure is provided on the first baffle plate, first grooves are respectively provided on the two extended ends of the wheel shaft corresponding to the first anti-slip structure, and a part of the first anti-slip structure is clamped in the corresponding first groove;

[0005] Second anti-slip structures are also provided on the two protruding ends of the wheel axle. When the wheel axle moves along its axial direction, the two second anti-slip structures form opposite forces at the two ends of the wheel axle, thereby restraining the axial movement of the wheel axle.

[0006] By adopting the above technical solution, the first groove and the first anti-slip structure can provide the first level of protection for the anti-rope pulley to prevent it from falling out when it moves axially along the wheel shaft. The second anti-slip structure can provide the second level of protection for the anti-rope pulley. Even if the first level of protection fails, when the anti-rope pulley moves axially, the two second anti-slip structures apply a reverse force at both ends of the wheel shaft, thereby effectively preventing the wheel shaft from falling out.

[0007] Preferably, a second baffle is provided on both sides of the deflecting pulley, and both side edges of the second baffle are bent in a direction away from the deflecting pulley to form a second mounting portion, and the second mounting portion is connected to the corresponding clamping plate by bolts;

[0008] The lower edge of the second baffle is bent in a direction away from the counter pulley to form a first reinforcement portion.

[0009] With the above structure, the second baffle can protect both sides of the anti-rope wheel to prevent the wire rope from slipping out. The second baffle has a simple structure and meets the strength requirements.

[0010] Preferably, the first baffle comprises a first mounting portion, the first mounting portion is connected to the corresponding clamping plate by bolts, a wheel axle hole is formed on the first mounting portion corresponding to the wheel axle, and the first groove is formed at the end of the wheel axle after passing through the corresponding wheel axle hole;

[0011] A first anti-slip plate is installed on the outer side surface of the first installation portion, and the first anti-slip plate forms the first anti-slip structure. A part of the first anti-slip plate is clamped in the corresponding first groove.

[0012] With the above structure, the first anti-slip plate can not only play an axial limiting and anti-slipping role on the wheel axle, but also strengthen the first baffle.

[0013] Preferably, the distance between the upper edge of the first mounting portion and the upper edge of the corresponding clamping plate is less than 1 / 2 of the width of the clamping plate. With this structure, the contact area between the first mounting portion and the clamping plate is large enough to effectively ensure its strength.

[0014] Preferably, the second anti-slip structure includes a second groove, and a second groove is provided on the protruding end of the axle corresponding to the clamping plate, the second groove and the first groove located at the same end are staggered, and a part of the clamping plate is clamped in the corresponding second groove. With this structure, the axle is further effectively protected from slipping by the cooperation of the second groove and the clamping plate, and the staggered design of the first groove and the second groove can effectively ensure the strength of the axle itself.

[0015] Preferably, the depths of the first groove and the second groove are both h, the diameter of the axle is D, and h is 10-14% of D. This structure can not only ensure effective cooperation between the groove and the corresponding card entry plate, but also ensure sufficient strength of the axle.

[0016] Preferably, the first baffle includes a first mounting portion, and the first mounting portion is connected to the corresponding clamping plate via bolts;

[0017] The clamping plate is provided with an axle hole corresponding to the axle, the end of the axle is provided with the first groove after passing through the corresponding axle hole, and a part of the first mounting portion forms the first anti-slip structure and is clamped in the corresponding first groove.

[0018] With this structure, the first mounting portion and the first groove on the first baffle cooperate to effectively prevent the wheel axle from falling off.

[0019] Preferably, the second anti-slip structure includes a second anti-slip plate, which is mounted on the end face of the axle by bolts, and the area of ​​the second anti-slip plate is larger than the area of ​​the end face of the axle. With this structure, when the anti-slip protection of the first mounting portion and the first groove fails, the second anti-slip plate is pulled by the axle to move along its axial direction, and abuts against the splint when it touches the splint, thereby playing a second protective role to prevent the axle from slipping out.

[0020] Preferably, the upper edge of the second anti-slip plate is bent toward the clamping plate to form a second reinforcement portion. With this structure, the strength of the second anti-slip plate can be effectively improved.

[0021] Preferably, the depth of the first groove is h, the diameter of the axle is D, and h is 10-14% of D. This structure can not only ensure the effective cooperation between the groove and the corresponding card-entry plate, but also ensure sufficient strength of the axle.

[0022] Through the above technical scheme, the first groove and the first anti-slip structure can provide the first level of protection for the anti-rope pulley to prevent it from falling out when it moves axially along the wheel shaft. The second anti-slip structure can provide the second level of protection for the anti-rope pulley. Even if the first level of protection fails, when the anti-rope pulley moves axially, the two second anti-slip structures apply a reverse force at both ends of the wheel shaft, thereby effectively preventing the wheel shaft from falling out.

[0023] The double protection structure provided by the present application has high strength, excellent anti-slip performance, high safety, simple structure, and is suitable for large-scale production applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of an anti-slip protection structure provided by the present application;

[0025] Figure 2 It is a schematic diagram of a planar structure of an anti-slip protection structure provided by the present application;

[0026] Figure 3 It is a three-dimensional structural diagram of the anti-ropes pulley;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of another anti-slip protection structure provided by the present application.

[0028] Description of Reference Numerals

[0029] 1-clamp; 2-installation area; 3-reverse rope pulley; 4-first baffle; 4a-first installation part; 4b-extension part; 5-axle; 6-second groove; 7-first groove; 8-first anti-slip plate; 9-second baffle; 10-second installation part; 11-first reinforcement part; 12-second anti-slip plate; 13-second reinforcement part; 14-third baffle; 15-adjustment hole; 16-fourth gear lever. DETAILED DESCRIPTION

[0030] In the description of the present application, it should be understood that the terms "upper", "lower", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] The terms "first", "second", "third", and "fourth" 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", "second", "third", and "fourth" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "multiple" means two or more.

[0032] 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 a direct connection, or it can be indirectly connected through an intermediate medium, or 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.

[0033] Embodiment 1, as Figure 1-3 As shown, an elevator counterweight anti-ropes pulley anti-slip protection structure, wherein, it comprises two clamping plates 1 arranged opposite to each other, an installation area 2 is formed between the two clamping plates 1, an anti-ropes pulley 3 is arranged in the installation area 2, and both ends of the wheel shaft 5 of the anti-ropes pulley 3 extend out of the installation area 2, a first baffle plate 4 is installed on the outer surface of the clamping plate 1, and the first baffle plate 4 has a first anti-slip structure, and first grooves 7 are respectively opened on the two extended ends of the wheel shaft 5 corresponding to the first anti-slip structure, and a part of the first anti-slip structure is stuck in the corresponding first groove 7;

[0034] Second anti-slip structures are also provided on the two protruding ends of the wheel axle 5. When the wheel axle 5 moves along its axial direction, the two second anti-slip structures form opposite forces at the two ends of the wheel axle 5, thereby restraining the axial movement of the wheel axle 5.

[0035] In some embodiments, the first baffle 4 includes a first mounting portion 4a, which is connected to the corresponding clamping plate 1 by bolts, and the first mounting portion 4a is provided with a wheel axle hole corresponding to the wheel axle 5, and the end of the wheel axle 5 is provided with the first groove 7 after passing through the corresponding wheel axle hole, and a first anti-slip plate 8 is installed on the outer surface of the first mounting portion 4a, and the first anti-slip plate 8 forms the first anti-slip structure, and a part of the first anti-slip plate 8 is clamped in the corresponding first groove 7. In this embodiment, specifically, the first mounting portion 4a is square, and its upper part is fixedly mounted on the corresponding clamping plate 1 by four bolts, and the wheel axle hole is provided on the first mounting portion 4a below the four bolts, and the first groove 7 is provided on the lower surface of the wheel axle 5, and the first anti-slip plate 8 is installed on the first mounting portion 4a below the wheel axle hole, and a part of the upper part of the first anti-slip plate 8 is clamped in the corresponding first groove 7, and the distance between the upper edge of the first mounting portion 4a and the upper edge of the corresponding clamping plate 1 is less than 1 / 2 of the width of the clamping plate 1.

[0036] The second anti-slip structure includes a second groove 6. A second groove 6 is provided on the protruding end of the wheel axle 5 corresponding to the clamping plate 1. The second groove 6 and the first groove 7 located at the same end are axially staggered, and a part of the clamping plate 1 is clamped in the corresponding second groove 6.

[0037] In some embodiments, the second groove 6 is formed on the upper surface of the wheel axle 5 , the notch of the second groove 6 faces the corresponding clamping plate 1 , and a portion of the lower portion of the clamping plate 1 is clamped in the second groove 6 .

[0038] In some embodiments, the depths of the first groove 7 and the second groove 6 are both h, the diameter of the axle 5 is D, and h is 10-14% of D.

[0039] In some embodiments, a second baffle 9 is provided on both sides of the de-ropey pulley 3, and both side edges of the second baffle 9 are bent in a direction away from the de-ropey pulley 3 to form a second mounting portion 10. The second mounting portion 10 is connected to the corresponding clamping plate 1 by bolts, and the lower edge of the second baffle 9 is bent in a direction away from the de-ropey pulley 3 to form a first reinforcement portion 11.

[0040] In some embodiments, the first baffle 4 also includes an extension portion 4b, which is located below the first mounting portion 4a and fixedly connected to the first mounting portion 4a. In this embodiment, the first mounting portion 4a and the extension portion 4b are integrally formed as a whole, and an adjustment hole 15 is vertically opened on the extension portion 4b. A fourth gear rod 16 is provided below the deflector pulley 3 along the thickness direction of the deflector pulley, and both ends of the fourth gear rod 16 pass through the corresponding adjustment holes 15 and are fixed by bolts.

[0041] In some embodiments, a third horizontal baffle plate 14 is further provided above the deflecting pulley 3, and both side edges of the third baffle plate 14 are respectively bent toward the two clamping plates 1 and fixed to the corresponding clamping plates 1 by bolts.

[0042] Embodiment 2, as Figure 4 As shown, another elevator counterweight anti-ropes pulley anti-slip protection structure provided in the present application is different from the elevator counterweight anti-ropes pulley anti-slip protection structure provided in Example 1 in that:

[0043] The first baffle 4 includes a first mounting portion 4a, which is connected to the corresponding clamping plate 1 by bolts. A wheel axle hole is provided on the clamping plate 1 corresponding to the wheel axle 5, and the end of the wheel axle 5 is provided with the first groove 7 after passing through the corresponding wheel axle hole. A part of the first mounting portion 4a forms the first anti-slip structure and is clamped in the corresponding first groove 7. In the present embodiment, specifically, the lower surface of the wheel axle 5 is provided with the first groove 7, and the notch of the first groove 7 faces downward. The first mounting portion 4a is fixedly connected to the clamping plate 1 below the wheel axle hole, and a part of the upper part of the first mounting portion 4a forms the first anti-slip structure and is clamped in the corresponding first groove 7.

[0044] The second anti-slip structure includes a second anti-slip plate 12, which is installed on the end face of the wheel axle 5 by bolts. The area of ​​the second anti-slip plate 12 is larger than the area of ​​the end face of the wheel axle 5. Preferably, the center line of the second anti-slip plate 12 coincides with the axial center line of the wheel axle 5, and the upper edge and lower edge of the second anti-slip plate 12 at least partially extend beyond the wheel axle 5. The upper edge of the second anti-slip plate 12 is bent toward the clamping plate 1 to form a second reinforcement portion 13. The depth of the first groove 7 is h, the diameter of the wheel axle 5 is D, and h is 10-14% of D.

[0045] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications. For example, the lifting structure can be changed to other mechanical lifting structures, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. An elevator counterweight anti-ropes pulley anti-drop protection structure, characterized in that: The invention comprises two clamping plates arranged opposite to each other, an installation area is formed between the two clamping plates, a deflecting pulley is arranged in the installation area, two ends of the wheel shaft of the deflecting pulley extend out of the installation area, a first baffle is arranged on the outer side of the clamping plate, a first anti-slip structure is arranged on the first baffle, first grooves are respectively arranged on the two extended ends of the wheel shaft corresponding to the first anti-slip structure, and a part of the first anti-slip structure is clamped in the corresponding first groove; Second anti-slip structures are also provided on the two protruding ends of the wheel axle. When the wheel axle moves along its axial direction, the two second anti-slip structures form opposite forces at the two ends of the wheel axle, thereby restraining the axial movement of the wheel axle.

2. The elevator counterweight anti-ropes pulley anti-drop protection structure according to claim 1, characterized in that: Second baffles are respectively provided on both sides of the deflecting pulley, and both side edges of the second baffles are respectively bent in a direction away from the deflecting pulley to form a second mounting portion, and the second mounting portion is connected to the corresponding clamping plate by bolts; The lower edge of the second baffle is bent in a direction away from the counter pulley to form a first reinforcement portion.

3. The elevator counterweight anti-ropes pulley anti-drop protection structure according to claim 1 or 2, characterized in that: The first baffle comprises a first mounting portion, the first mounting portion is connected to the corresponding clamping plate by bolts, a wheel axle hole is formed on the first mounting portion corresponding to the wheel axle, and the first groove is formed at the end of the wheel axle after passing through the corresponding wheel axle hole; A first anti-slip plate is installed on the outer side surface of the first installation portion, and the first anti-slip plate forms the first anti-slip structure. A part of the first anti-slip plate is clamped in the corresponding first groove.

4. The elevator counterweight anti-ropes pulley anti-drop protection structure according to claim 3, characterized in that: The distance between the upper edge of the first mounting portion and the upper edge of the corresponding clamping plate is less than 1 / 2 of the width of the clamping plate.

5. The elevator counterweight anti-ropes pulley anti-drop protection structure according to claim 4, characterized in that: The second anti-slip structure includes a second groove. A second groove is provided on the protruding end of the wheel axle corresponding to the clamping plate. The second groove is staggered with the first groove located at the same end. A part of the clamping plate is clamped in the corresponding second groove.

6. The elevator counterweight anti-ropes pulley anti-drop protection structure according to claim 5, characterized in that: The depths of the first groove and the second groove are both h, the diameter of the axle is D, and h is 10-14% of D.

7. The elevator counterweight anti-ropes pulley anti-drop protection structure according to claim 1 or 2, characterized in that: The first baffle includes a first mounting portion, and the first mounting portion is connected to the corresponding clamping plate by bolts; The clamping plate is provided with an axle hole corresponding to the axle, the end of the axle is provided with the first groove after passing through the corresponding axle hole, and a part of the first mounting portion forms the first anti-slip structure and is clamped in the corresponding first groove.

8. The elevator counterweight anti-ropes pulley anti-drop protection structure according to claim 7, characterized in that: The second anti-slip structure comprises a second anti-slip plate, which is mounted on the end face of the axle by bolts, and the area of ​​the second anti-slip plate is larger than the area of ​​the end face of the axle.

9. The elevator counterweight anti-ropes pulley anti-drop protection structure according to claim 8, characterized in that: The upper edge of the second anti-slip plate is bent toward the clamping plate to form a second reinforcement portion.

10. The elevator counterweight anti-ropes pulley anti-drop protection structure according to claim 7, characterized in that: The depth of the first groove is h, the diameter of the wheel axle is D, and h is 10-14% of D.

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