Upper change gear assembly

Abstract

The utility model discloses an upper change gear assembly, and relates to the technical field of elevator change gears. The change gear comprises a change gear body, and a first transmission groove and a second transmission groove are formed in the outer wall of the change gear body and used for transmission conveying of a traction rope. The change gear further comprises a bearing, a mounting groove is formed in the change gear body, and the bearing is fixedly arranged in the mounting groove. And one end of the connecting piece penetrates through the bearing and is fixedly connected with an inner shaft of the bearing, and the other end of the connecting piece is tightly attached to one side of a shaft body to be installed. According to the change gear assembly, the additional transmission rope groove is additionally formed in the same wheel, so that the change gear assembly not only can meet various transmission requirements, but also can process transmission of a plurality of ropes or cables at the same time, and therefore multifunctional application of a single assembly is achieved; and moreover, the change gear assembly is firm in installation and simple to operate, and the manufacturing, installation and maintenance costs are effectively reduced by reducing the number of the assemblies.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator hanging wheels, in particular to an upper hanging wheel assembly. Background Art

[0002] In various types of mechanical equipment, the hanging wheel assembly is a key transmission component, especially in situations where continuous or intermittent transmission is required. In the elevator manufacturing industry, especially when producing high-rise elevators, the manufacturing demand for the upper hanging plate wheel assembly is particularly large, so it is particularly important to design a multifunctional upper hanging plate wheel assembly.

[0003] After searching, the patent with announcement number CN219860035U discloses an elevator door hanging wheel with a reinforcing rib structure, which relates to the technical field of elevator door hanging wheels, including a device body, the device body includes a hanging wheel, reinforcing ribs, bearings, shaft holes, polyurethane outer rings, mounting frames, connecting components and auxiliary components, the inner wall of the hanging wheel is evenly spaced and fixedly connected with a plurality of reinforcing ribs, one side of the reinforcing rib is provided with a bearing, the inner side of the bearing is provided with a shaft hole, one side of the hanging wheel is provided with a polyurethane outer ring, the two ends of the bearing are symmetrically provided with mounting frames, one side of the mounting frame is provided with connecting components, the connecting components include grooves, springs, baffles, connecting blocks, limit blocks, connecting frames and pressure shafts, the inside of the mounting frame is provided with grooves, the elevator door hanging wheel with a reinforcing rib structure is moved on the door guide rail by the pressure shaft through the setting of the connecting component, the guide rail is effectively derusted and polished, so that the door opening and closing is smoother, and the practicality of the device is further improved.

[0004] However, traditional pulley designs often have a single function, with only a single transmission rope groove. When facing different rope transmissions, workers need to use corresponding pulley assemblies to coordinate, which is costly and difficult to meet the needs of modern mechanical equipment for versatility and cost-effectiveness. Utility Model Content

[0005] The purpose of the utility model is to provide an upper hanging wheel assembly. In the utility model, the hanging wheel assembly realizes the multifunctional application of a single component by adding an additional transmission rope groove on the same wheel; and the hanging wheel assembly is firmly installed and easy to operate, and the manufacturing, installation and maintenance costs are reduced by reducing the number of components, thereby solving the existing technical problems.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The upper suspension wheel assembly comprises:

[0008] A pulley body, wherein the outer wall of the pulley body is provided with a first transmission groove and a second transmission groove for transmission of the traction rope;

[0009] It also includes a bearing, wherein a mounting groove is provided inside the hanging wheel body, and the bearing is fixedly arranged in the mounting groove;

[0010] It also includes a connecting piece and a fixing screw, one end of the connecting piece passes through the bearing and is fixedly connected to the inner shaft of the bearing, one end of the connecting piece is tightly attached to one side of the shaft body to be installed, and one end of the fixing screw passes through the connecting piece and is threadedly connected to the shaft body to be installed, so as to complete the fixing of the connecting piece.

[0011] Optionally, the connecting member consists of an abutment portion and a mounting portion, the mounting portion is fixedly mounted at one end of the abutment portion, the outer diameter of the abutment portion is larger than the outer diameter of the mounting portion, and the outer diameter of the mounting portion matches the inner shaft hole diameter of the bearing to ensure that the pulley body can be stably installed.

[0012] Optionally, a first mounting hole and a second mounting hole are provided inside the connecting member, and a thread is provided on the inner wall of the first mounting hole. The connecting member is threadedly connected to the stud part of the fixing screw through the first mounting hole to ensure that the connecting member is firmly installed with the shaft to be installed.

[0013] Optionally, a limit block is fixedly installed on one side of the abutment portion, the limit block is rectangular, and a limit groove matching the limit block is provided at one end of the shaft to be installed that contacts the connecting piece, and the limit block is used to prevent the first mounting hole from rotating after installation.

[0014] Optionally, a rubber pad is provided on one side of the limit block to prevent the connecting piece from shaking after installation and eliminate the influence of gaps caused by errors.

[0015] Optionally, the first transmission groove and the second transmission groove have different internal widths, so as to enable the pulley body to adapt to traction ropes of different specifications.

[0016] Optionally, a plurality of first arc-shaped protrusions are fixedly installed on the inner wall of the first transmission groove, and a plurality of second arc-shaped protrusions are fixedly installed on the inner wall of the second transmission groove, and the plurality of first arc-shaped protrusions and second arc-shaped protrusions are respectively used to increase the friction force when the inner walls of the first transmission groove and the second transmission groove contact the corresponding traction cables.

[0017] Optionally, a plurality of grooves are provided on both sides of the pulley body. The plurality of grooves can further reduce the weight and manufacturing cost of the pulley body without affecting the structural strength of the pulley body.

[0018] The embodiments of the present invention have the following beneficial effects:

[0019] In the utility model, by adding an additional transmission rope groove on the same wheel, the hanging wheel assembly can not only meet various transmission needs, but also handle the transmission of multiple ropes or cables at the same time, thereby realizing the multifunctional application of a single component; and the hanging wheel assembly is firmly installed and easy to operate, and by reducing the number of components, the manufacturing, installation and maintenance costs are reduced, and the overall mechanical structure is made more compact and simple, and limited space resources are used more effectively.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of a three-dimensional structure of an embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of another viewing angle of an embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the split structure of an embodiment of the utility model;

[0025] Figure 4 This is a schematic cross-sectional view of an embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the connecting member structure of an embodiment of the utility model.

[0027] In the figure: 1, the main body of the hanging wheel; 2, the bearing; 3, the connecting piece; 4, the fixing screw; 5, the first transmission groove; 6, the second transmission groove; 7, the first arc-shaped protrusion; 8, the second arc-shaped protrusion; 9, the groove; 10, the mounting groove; 11, the abutment part; 12, the mounting part; 13, the first mounting hole; 14, the second mounting hole; 15, the limit block DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements 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 invention.

[0030] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0031] Example 1

[0032] See also Figure 1-5 As shown, in this embodiment, an upper hanging wheel assembly is provided, which is applied to the technical field of elevator hanging wheels, including: a hanging wheel body 1, a bearing 2, a connecting piece 3, a fixing screw 4 and other components.

[0033] The pulley body 1 is the core part of the present invention, and a first transmission groove 5 and a second transmission groove 6 are specially provided on its outer wall. The two transmission grooves are designed mainly for transmission and conveying of traction ropes. It is worth mentioning that the internal widths of the first transmission groove 5 and the second transmission groove 6 are different. Such a design enables the pulley body 1 to adapt to traction ropes of different specifications, thereby showing better flexibility and applicability in practical applications.

[0034] A mounting groove 10 is provided inside the hanging wheel body 1 for mounting the bearing 2. The bearing 2 is fixedly arranged in the mounting groove 10, ensuring the stability and smoothness of the hanging wheel body 1 during the rotation process.

[0035] One end of the connector 3 passes through the bearing 2 and is fixedly connected to the inner shaft of the bearing 2, and the other end is tightly fitted to one side of the shaft to be installed. At the same time, the connector 3 can be fixed by passing one end of the fixing screw 4 through the connector 3 and threading it to the shaft to be installed.

[0036] Specifically, the connecting member 3 is composed of an abutment portion 11 and a mounting portion 12. The mounting portion 12 is fixedly mounted at one end of the abutment portion 11, and the outer diameter of the abutment portion 11 is designed to be larger than the outer diameter of the mounting portion 12 to ensure stable installation of the pulley body 1. At the same time, the outer diameter of the mounting portion 12 is closely matched with the inner shaft diameter of the bearing 2, further enhancing the stability of the installation.

[0037] A first mounting hole 13 and a second mounting hole 14 are also provided inside the connecting member 3. The inner wall of the first mounting hole 13 is provided with threads, so that the connecting member 3 can be threadedly connected with the stud part of the fixing screw 4 through the first mounting hole 13, thereby ensuring a firm installation between the connecting member 3 and the shaft to be installed.

[0038] In order to further enhance the stability of the installation and prevent rotation after installation, a stopper 15 is fixedly installed on one side of the abutment portion 11. The stopper 15 is designed to be rectangular and fits tightly with the stopper groove on the shaft body to be installed, effectively preventing the first installation hole 13 from rotating after installation. At the same time, a rubber pad is also provided on one side of the stopper 15, which can not only prevent the connector 3 from shaking after installation, but also eliminate the gap caused by errors.

[0039] Example 2

[0040] Reference Figure 2 , improved on the basis of Example 1:

[0041] In this embodiment, in the internal design of the first transmission groove 5 and the second transmission groove 6, a plurality of first arc-shaped protrusions 7 are fixedly installed on the inner wall of the first transmission groove 5, and a plurality of second arc-shaped protrusions 8 are fixedly installed on the inner wall of the second transmission groove 6. The design of these arc-shaped protrusions is mainly to increase the friction force when the inner wall of the transmission groove contacts the corresponding traction rope, thereby improving the transmission efficiency and stability.

[0042] In this embodiment, a plurality of grooves 9 are specially provided on both sides of the hanging wheel body 1. The design of these grooves 9 can further reduce the weight and manufacturing cost of the hanging wheel body 1 without affecting the structural strength of the hanging wheel body 1, making the upper hanging wheel assembly more economical and practical.

[0043] The use process and working principle of the technical solution of this utility model are as follows:

[0044] When in use, the bearing 2 is installed inside the pulley body 1 through the installation groove 10, and the bearing 2 is provided with a connecting piece 3 inside and the connecting piece 3 and the inner shaft of the bearing 2 are kept fixed. When installing, the user only needs to abut one end of the connecting piece 3 against one end of the shaft body to be installed, and insert the limit block 15 into the limit groove at one end of the shaft body to be installed. Then the user can screw the fixing screw 4 into the connecting piece 3 from the other end of the connecting piece 3. The outer wall of the fixing screw 4 will pass through the first installation hole 13 and enter the preset threaded hole of the shaft body to be installed. Tighten the fixing screw 4 until the rubber pad on one side of the limit block 15 is squeezed. The first and second transmission grooves 5 and 6 are respectively provided with the first arc-shaped protrusions 7 and the second arc-shaped protrusions 8, which can ensure that the traction rope will not slip during transmission. The first transmission groove 5 and the second transmission groove 6 have different widths and can be adapted to ropes of different specifications. Users can use one wheel to meet multiple transmission needs. One wheel has multiple functions and reduces costs.

[0045] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are merely used to distinguish between various features and have no actual order or directional meaning, and this application is not limited to this.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The upper hanging wheel assembly is characterized in that: include: A pulley body (1), wherein the outer wall of the pulley body (1) is provided with a first transmission groove (5) and a second transmission groove (6) for transmitting and conveying the traction rope; It also includes a bearing (2), a mounting groove (10) is provided inside the hanging wheel body (1), and the bearing (2) is fixedly arranged in the mounting groove (10); It also includes a connecting piece (3) and a fixing screw (4), one end of the connecting piece (3) passes through the bearing (2) and is fixedly connected to the inner shaft of the bearing (2), one end of the connecting piece (3) is tightly attached to one side of the shaft body to be installed, and one end of the fixing screw (4) passes through the connecting piece (3) and is threadedly connected to the shaft body to be installed, so as to complete the fixing of the connecting piece (3).

2. The upper suspension wheel assembly according to claim 1, characterized in that: The connecting member (3) is composed of an abutment portion (11) and a mounting portion (12); the mounting portion (12) is fixedly mounted on one end of the abutment portion (11); the outer diameter of the abutment portion (11) is larger than the outer diameter of the mounting portion (12); the outer diameter of the mounting portion (12) matches the inner shaft hole diameter of the bearing (2) to ensure that the pulley body (1) can be stably mounted.

3. The upper suspension wheel assembly according to claim 2, characterized in that: The connecting member (3) is provided with a first mounting hole (13) and a second mounting hole (14) inside, and the inner wall of the first mounting hole (13) is provided with a thread. The connecting member (3) is threadedly connected to the stud portion of the fixing screw (4) through the first mounting hole (13) to ensure that the connecting member (3) is firmly mounted on the shaft to be installed.

4. The upper suspension wheel assembly according to claim 3, characterized in that: A limiting block (15) is fixedly mounted on one side of the abutting portion (11), the limiting block (15) being rectangular, and a limiting groove matching the limiting block (15) is provided at one end of the shaft body to be installed that contacts the connecting member (3), the limiting block (15) being used to prevent the first installation hole (13) from rotating after installation.

5. The upper suspension wheel assembly according to claim 4, characterized in that: A rubber pad is provided on one side of the limit block (15) to prevent the connecting piece (3) from shaking after installation and to eliminate the influence of gaps caused by errors.

6. The upper suspension wheel assembly according to claim 1, characterized in that: The first transmission groove (5) and the second transmission groove (6) have different internal widths, so as to enable the pulley body (1) to adapt to traction ropes of different specifications.

7. The upper suspension wheel assembly according to claim 6, characterized in that: A plurality of first arc-shaped protrusions (7) are fixedly mounted on the inner wall of the first transmission groove (5), and a plurality of second arc-shaped protrusions (8) are fixedly mounted on the inner wall of the second transmission groove (6). The plurality of first arc-shaped protrusions (7) and second arc-shaped protrusions (8) are respectively used to increase the friction force when the inner walls of the first transmission groove (5) and the second transmission groove (6) contact the corresponding traction ropes.

8. The upper suspension wheel assembly according to claim 1, characterized in that: A plurality of grooves (9) are provided on both sides of the pulley body (1); the plurality of grooves (9) can further reduce the weight and production cost of the pulley body (1) without affecting the structural strength of the pulley body (1).

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