Chain transmission structure

Abstract

The utility model discloses a chain transmission structure which comprises a square insert bearing with a seat and a synchronizing shaft, the square insert bearing with the seat is fixedly installed on a bearing fixing plate, the synchronizing shaft is inserted into the square insert bearing with the seat, and a driving chain wheel and a driven chain wheel are fixedly installed on the synchronizing shaft respectively. The mechanism is simple in structure, convenient to use, small and exquisite in structure, convenient to install and debug and high in stability, the mechanism can be conveniently used in various chain transmission structures, key components of the mechanism are standard components, machining is convenient, the cost is low, and the mechanism is suitable for popularization and application. The labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration friction welding equipment, and particularly relates to a chain drive structure. Background Technique

[0002] The chain drive mechanism is a structure developed for vibration friction welding equipment. In the previous structure, the driving sprocket is outside the square block type spherical outside diameter bearing, so there is only unilateral supporting force on both the left and right sides of the driving sprocket. When the driving sprocket is subjected to a large force, it will locally bend the synchronous shaft. When operating for a long time in the state of local bending of the synchronous shaft, the whole chain drive structure has a risk of failure; the fixing structure of the gear itself is only stressed unilaterally, and the structure is not stable. When receiving a large reaction force from the transmission chain for a long time, the overall fixing structure is extremely easy to deform, resulting in the failure of the overall structure. The chain drive structure solves the above problems. The fixing structure of the driving sprocket is stressed on both sides, with a stable structure, simple installation, high structural strength, and the vibration friction welding equipment is widely used in the industries of automobiles, gardens, instruments and meters, and lamps.

[0003] At present, a new problem has occurred during the operation of the vibration friction welding equipment. During the long-term operation of the equipment, the front door and the movable door need to be frequently opened and closed, otherwise obvious noise pollution will occur. After long-term operation of the equipment, the chain drive structure will fail, resulting in the abnormal operation of the movable door. Based on the above problems, this case is thus born. Content of the Utility Model

[0004] The purpose of the utility model is to provide a chain drive structure to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A chain drive structure, the chain drive mechanism includes a square block type spherical outside diameter bearing and a synchronous shaft. The square block type spherical outside diameter bearing is fixedly installed on the bearing fixing plate, and the synchronous shaft is inserted into the square block type spherical outside diameter bearing. An active sprocket and a driven sprocket are respectively fixedly installed on the synchronous shaft. The active sprocket is connected to a power device through an active chain, and the driven sprocket is connected to a movable door through a driven chain.

[0006] Furthermore, there are two square block type spherical outside diameter bearings and bearing fixing plates, which are respectively installed on the left and right sides of the synchronous shaft.

[0007] Furthermore, there are two driven sprockets. The active sprocket is installed on the left side of the synchronous shaft close to the position of the square block type spherical outside diameter bearing, and two driven sprockets are installed in sequence to the right.

[0008] Furthermore, a positioning ring for limiting is also installed on the synchronous shaft, and the positioning rings are respectively installed on both sides of the active sprocket and the driven sprocket.

[0009] Furthermore, the synchronization shaft is slidably mounted on the bearing fixing plate through a square block-mounted spherical bearing and can rotate freely relative to the bearing fixing plate.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. This mechanism can increase the sprocket support points and enhance the local structural stability.

[0012] 2. This mechanism has a simple structure, is convenient to use, and is small and compact, facilitating its use in various chain drive structures.

[0013] 3. This mechanism has a simple structure, is convenient for installation and debugging, and has high stability.

[0014] 4. The key components of this mechanism are all standard parts, which are convenient for processing and save labor costs.

[0015] 5. This mechanism has high reliability and can reduce after-sales costs. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic external view of the chain drive structure of the present utility model;

[0018] Figure 2 It is a schematic internal sectional view of the chain drive structure of the present utility model.

[0019] In the drawings, the list of components represented by each reference numeral is as follows:

[0020] In the figure: 1. Square block-mounted spherical bearing; 2. Bearing fixing plate; 3. Driving sprocket; 4. Driving chain; 5. Driven chain; 6. Positioning ring; 7. Synchronization shaft; 8. Driven sprocket. Detailed Embodiment

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0022] Refer to the attached Figure 1-2, a chain drive structure, the chain drive mechanism includes a square flange spherical plain bearing 1 and a synchronous shaft 7. The square flange spherical plain bearing 1 is fixedly installed on a bearing fixing plate 2, and the synchronous shaft 7 is inserted into the square flange spherical plain bearing 1. An active sprocket 3 and a passive sprocket 8 are respectively and fixedly installed on the synchronous shaft 7. The active sprocket 3 is connected to a power device through an active chain 4, and the passive sprocket 8 is connected to a movable door through a passive chain 5.

[0023] There are two of the square flange spherical plain bearing 1 and the bearing fixing plate 2, which are respectively installed on the left and right sides of the synchronous shaft 7.

[0024] There are two of the passive sprockets 8. The active sprocket 3 is installed on the left side of the synchronous shaft 7 near the square flange spherical plain bearing 1, and two passive sprockets 8 are installed in sequence to the right.

[0025] Thus, the sprocket support points can be increased, and the local structural stability can be increased.

[0026] A positioning ring 6 for limiting is also installed on the synchronous shaft 7. The positioning rings 6 are respectively installed on both sides of the active sprocket 3 and the passive sprocket 8 to fix the active sprocket 3 and the passive sprocket 8 and prevent them from shifting.

[0027] The synchronous shaft 7 is slidably installed on the bearing fixing plate 2 through the square flange spherical plain bearing 1 and can rotate freely relative to the bearing fixing plate 2. For the square flange spherical plain bearing 1, the square flange spherical plain bearing 1 is fixed on the bearing fixing plate 2. There is a synchronous shaft 7 between the two square flange spherical plain bearings 1. An active sprocket 3 and a passive sprocket 8 are provided on the synchronous shaft 7. A chain 4 is installed on the active sprocket 3 and a chain 5 is installed on the passive sprocket 8. The active sprocket 3 and the passive sprocket 8 are constrained by the positioning ring 6.

[0028] Power is provided by a motor and drives the active chain 4 to drive through a speed reducer, so that the synchronous shaft 7 rotates. The rotation of the synchronous shaft drives the passive sprocket 8 to rotate, thereby driving the passive chain 5 to rotate and pulling the movable door to open and close up and down.

[0029] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0030] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A chain transmission structure, characterized in that: The chain transmission structure includes a square outer spherical bearing with a seat and a synchronous shaft. The square outer spherical bearing with a seat is fixedly installed on a bearing fixing plate, and the synchronous shaft is inserted into the square outer spherical bearing with a seat. A driving sprocket and a passive sprocket are respectively fixedly installed on the synchronous shaft. The driving sprocket is connected to a power device through a driving chain, and the passive sprocket is connected to a movable door through a passive chain.

2. A chain transmission structure according to claim 1, characterized in that: The square outer spherical bearing with a seat and the bearing fixing plate are provided with two and are respectively installed on the left and right sides of the synchronous shaft.

3. A chain transmission structure according to claim 1, characterized in that: The passive sprockets are provided with two, the active sprocket is installed on the left side of the synchronous shaft near the position of the square spherical bearing with a seat, and the two passive sprockets are installed in sequence to the right.

4. A chain transmission structure according to claim 1, characterized in that: The synchronous shaft is also provided with a positioning ring for limiting position, and the positioning rings are respectively installed on both sides of the driving sprocket and the driven sprocket.

5. A chain transmission structure according to claim 1, characterized in that: The synchronous shaft is slidably mounted on the bearing fixing plate through a square spherical bearing with a seat, and can rotate freely relative to the bearing fixing plate.

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