Flexible chain automatic tensioning mechanism

Abstract

The utility model relates to the technical field of flexible chains, and discloses an automatic tensioning mechanism for a flexible chain, which is characterized in that a driven head seat is movably and telescopically mounted on the side of a flexible chain conveying belt under the connection of a tensioning assembly, and is movably mounted on the side of a tensioning mounting seat through a metal guide column; the spring pushing seat is driven by the adjusting motor to drive the tensioning spring to abut against the front portion of the driven head seat, the driven head seat is connected through the guide column structure, the tensioning spring arranged on the upper portion of the tensioning installation seat is used for providing elastic pushing force for the driven head seat, and tensioning force is provided for the flexible chain belt through telescopic tensioning. The tensioning device is simple and reliable in structure, does not need to be additionally provided with an additional grooved rail structure, has better working reliability compared with a traditional guide wheel type tensioning structure, and is provided with the adjusting motor on one side of the tensioning mounting seat, and the spring push seat is adjusted and driven through a lead screw guide column structure; the tension degree of the flexible chain belt can be flexibly adjusted by changing the compression degree of the tension spring, and manual driving is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible chains, in particular to an automatic tensioning mechanism for a flexible chain. Background Art

[0002] Flexible conveyor chains are the same as transmission chains. Precision conveyor chains are also composed of a series of bearings, which are fixed by chain plates with a constraining effect. The positional relationship between them is very precise. In actual production and life, the toothed chain transmission system has many advantages such as high speed, low noise, low wear and high stability. It is widely used in the field of material transportation. In order to ensure the working stability of the flexible conveyor chain, a tensioning mechanism must be set in the driving structure of the flexible chain belt. The tensioning mechanism is used to support and tension the belt body of the flexible chain belt to prevent the chain belt from loosening during operation. It is an important component to ensure the normal operation of the flexible conveyor chain.

[0003] Traditional tensioning mechanisms mostly support and tension the belt body through a guide wheel structure. However, for a plate-type flexible conveyor chain, the plate seat needs to rely on a guide groove for sliding movement. In order to facilitate the support and tensioning of the chain belt, an additional groove structure needs to be set at the guide wheel, which not only complicates the structure but also increases the overall structural volume of the chain belt. Utility Model Content

[0004] The purpose of the utility model is to provide a flexible chain automatic tensioning mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a flexible chain automatic tensioning mechanism, comprising a tensioning assembly installed inside a flexible chain conveyor belt, a driving head seat and a driven head seat are respectively arranged on both sides of the flexible chain conveyor belt, the driven head seat is movably and telescopically installed on the side of the flexible chain conveyor belt under the connection of the tensioning assembly, and a flexible chain belt is installed on the upper part of the flexible chain conveyor belt;

[0006] The tensioning assembly includes a tensioning mounting seat, an adjusting motor, a spring push seat, a tensioning spring and a metal guide column. The tensioning mounting seat is fixedly mounted on the side of the bracket of the flexible chain conveyor belt, and the driven head seat is movably mounted on the side of the tensioning mounting seat through the metal guide column. The spring push seat drives the tensioning spring to contact the front of the driven head seat under the drive of the adjusting motor.

[0007] Preferably, the driving head seat is fixedly mounted on a bracket side of the flexible chain conveyor belt, and a driving motor is arranged on a side surface of the driving head seat.

[0008] Preferably, the tensioning mounting seat is embedded in the side of the bracket of the flexible chain conveyor belt, and a mounting screw hole is provided on the side of the tensioning mounting seat. A mounting bolt is provided inside the mounting screw hole, and the tensioning mounting seat is fixed to the side of the bracket of the flexible chain conveyor belt by the mounting bolt.

[0009] Preferably, the number of the above-mentioned metal guide pillars is four, and the four metal guide pillars are respectively fixed at the four front corners of the driven head seat, and a guide pillar socket is opened through the front of the tensioning mounting seat. The metal guide pillar is slidably inserted into the inside of the guide pillar socket, and the driven head seat is movably mounted on the side of the flexible chain conveyor belt through the metal guide pillars.

[0010] Preferably, a push seat connecting seat is fixed in the middle of the above-mentioned tensioning mounting seat, the adjusting motor is fixedly installed at the rear of the push seat connecting seat, a driving screw is fixed to the driving shaft end of the adjusting motor, an adjusting screw hole is provided at the rear of the spring push seat, and the spring push seat is threadedly connected to the upper part of the driving screw through the adjusting screw hole.

[0011] Preferably, a sliding guide column is evenly fixed to the front of the push seat connecting seat, a guide socket is provided at the rear of the spring push seat, and the spring push seat is movably mounted on the upper part of the sliding guide column through the guide socket.

[0012] Preferably, the tensioning spring is sleeved on the front of the spring push seat, a mounting boss is fixed in the middle of the connection side between the driven head seat and the flexible chain conveyor belt, and the end of the tensioning spring is sleeved on the outside of the mounting boss and contacts the front of the driven head seat.

[0013] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0014] The tensioning structure adopts a telescopic bracket structure setting, and the driven head seat on one side is set to be movable, and the driven head seat is connected by a guide column structure, and a tensioning mounting seat is provided on the bracket side of the flexible chain conveyor belt, and a tensioning spring arranged on the upper part of the tensioning mounting seat is used to provide an elastic driving force for the driven head seat, and the tensioning force is provided for the flexible chain belt through telescopic tensioning. The structure is simple and reliable and does not require an additional groove rail structure. Compared with the traditional guide wheel tensioning structure, it has better working reliability, and an adjusting motor is provided on one side of the tensioning mounting seat, and the spring push seat is adjusted and driven by the screw guide column structure. The flexible chain belt tensioning can be flexibly adjusted by changing the compression degree of the tensioning spring. No manual drive is required, which greatly improves the convenience of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the installation structure of the tensioning assembly of the utility model in the flexible chain conveyor belt;

[0018] Figure 3 This is a schematic diagram of the connection structure of the tensioning assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the tensioning mounting seat of the utility model;

[0020] Figure 5 This is a schematic diagram of the disassembled structure of the tensioning assembly of the utility model;

[0021] Figure 6 It is a schematic diagram of the spring push seat structure of the utility model.

[0022] Explanation of the accompanying drawings: 1. Flexible chain conveyor belt; 2. Tensioning assembly; 3. Flexible chain belt; 4. Driving head seat; 5. Driven head seat; 6. Driving motor; 7. Tensioning mounting seat; 8. Adjusting motor; 9. Spring push seat; 10. Tensioning spring; 11. Mounting bolt; 12. Metal guide column; 13. Guide column socket; 14. Push seat connecting seat; 15. Driving screw; 16. Sliding guide column; 17. Adjusting screw hole; 18. Guide socket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0025] Example

[0026] See also Figure 1-6The utility model provides a technical solution: a flexible chain automatic tensioning mechanism, including a tensioning assembly 2 installed inside a flexible chain conveyor belt 1, a driving head seat 4 and a driven head seat 5 are respectively arranged on both sides of the flexible chain conveyor belt 1, the driving head seat 4 is fixedly installed on the side of the bracket of the flexible chain conveyor belt 1, in order to provide driving force, a driving motor 6 is arranged on the side of the driving head seat 4, the driving motor 6 is a right-angle reduction motor, a chain belt driving wheel is arranged inside the driving head seat 4, the driving shaft end of the driving motor 6 is fixedly connected to the rotating shaft end of the chain belt driving wheel, and can provide driving force for the rotation of the chain belt driving wheel.

[0027] The tensioning assembly 2 includes a tensioning mounting seat 7, an adjusting motor 8, a spring push seat 9, a tensioning spring 10 and a metal guide column 12. In order to facilitate the installation of the driven head seat 5, the tensioning mounting seat 7 is embedded in the side of the bracket of the flexible chain conveyor belt 1. The side of the tensioning mounting seat 7 is provided with a mounting screw hole, and the inside of the mounting screw hole is provided with a mounting bolt 11. The tensioning mounting seat 7 is fixedly installed on the side of the bracket of the flexible chain conveyor belt 1 by the mounting bolt 11. In order to realize the sliding adjustment of the driven head seat 5, the metal guide column 12 is installed at the front of the driven head seat 5. The metal guide column 12 is a guide column made of metal. The number of the metal guide columns 12 is four, and the four metal guide columns 12 are respectively fixed at the four front corners of the driven head seat 5. A guide column socket 13 is opened through the front of the tensioning mounting seat 7, and the guide column socket 13 is connected to the metal The guide column 12 is adapted, and the metal guide column 12 is slidably inserted into the inside of the guide column socket 13. The driven head seat 5 is movably installed on the side of the flexible chain conveyor belt 1 through the metal guide column 12. A flexible chain belt 3 is installed on the upper part of the flexible chain conveyor belt 1. A chain belt guide groove seat is arranged on the upper part of the bracket of the flexible chain conveyor belt 1. The flexible chain belt 3 is installed on the upper part of the flexible chain conveyor belt 1 by interlocking and sliding. The flexible chain belt 3 is tensioned by lateral telescopic movement. The driven head seat 5 is connected through the guide column structure, and a tensioning mounting seat 7 is arranged on the bracket side of the flexible chain conveyor belt 1. The tensioning spring 10 arranged on the upper part of the tensioning mounting seat 7 is used to provide an elastic driving force for the driven head seat 5, and the flexible chain belt 3 is provided with a tensioning force through telescopic tensioning. The structure is simple and reliable, and no additional groove rail structure is required.

[0028] In order to facilitate the adjustment and drive of the driven head seat 5, a push seat connecting seat 14 is fixed to the middle part of the tensioning mounting seat 7, and the adjusting motor 8 is fixedly mounted on the rear part of the push seat connecting seat 14. A driving screw 15 is fixed to the driving shaft end of the adjusting motor 8. An adjusting screw hole 17 is provided at the rear part of the spring push seat 9. The spring push seat 9 is threadedly connected to the upper part of the driving screw 15 through the adjusting screw hole 17. Under the rotation drive of the driving screw 15, the spring push seat 9 can perform axial sliding movement. In order to realize the sliding adjustment of the spring push seat 9 and avoid the spring push seat 9 from rotating with the driving screw 15, sliding guide pillars 16 are evenly fixed on the front part of the push seat connecting seat 14, and a guide socket 18 is provided at the rear part of the spring push seat 9. The spring push seat 9 is movably mounted on the upper part of the sliding guide pillar 16 through the guide socket 18, and the spring push seat 9 can be guided and supported so that the spring push seat 9 can stably slide on the upper part of the sliding guide pillar 16.

[0029] In order to provide elastic tensioning force to the driven head seat 5, the tensioning spring 10 is sleeved on the front part of the spring push seat 9. The tensioning spring 10 is a steel spring. In order to facilitate the connection with the tensioning spring 10, a mounting boss is fixed in the middle part of the connecting side between the driven head seat 5 and the flexible chain conveyor belt 1. The end of the tensioning spring 10 is sleeved on the outside of the mounting boss and contacts with the front part of the driven head seat 5. The spring push seat 9 drives the tensioning spring 10 to contact with the front part of the driven head seat 5 under the drive of the adjusting motor 8. The spring push seat 9 is adjusted and driven by the screw guide column structure. By changing the compression degree of the tensioning spring 10, the tension of the flexible chain belt 3 can be flexibly adjusted without manual drive.

[0030] Working principle or structural principle, when working, the flexible chain belt 3 on the upper part of the flexible chain conveyor belt 1 is driven by the driving motor 6 to move, and the material on the upper part of the flexible chain belt 3 is conveyed. During conveying, the driven head seat 5 moves to the rear side under the push of the tensioning spring 10, and transmits the elastic driving force to the flexible chain belt 3. The flexible chain belt 3 is tensioned by the mobile support to ensure that the flexible chain belt 3 is in a tensioned state when moving, thereby ensuring the stability of material conveying;

[0031] When adjusting the tension of the flexible chain belt 3, the driving screw 15 is driven to rotate by adjusting the motor 8. The driving screw 15 drives the spring push seat 9 to slide on the upper part of the sliding guide column 16. The compression amount of the tensioning spring 10 is adjusted and controlled by changing the extension and contraction of the spring push seat 9. The tension of the flexible chain belt 3 can be adjusted and controlled by changing the compression amount of the tensioning spring 10, so that the device can flexibly adjust the tension of the flexible chain belt 3 according to the material conveying needs.

[0032] In summary, the tensioning structure adopts a telescopic bracket structure setting, and the driven head seat 5 on one side is set to be movable, and the driven head seat 5 is connected through a guide column structure, and a tensioning mounting seat 7 is set on the bracket side of the flexible chain conveyor belt 1. The tensioning spring 10 arranged on the upper part of the tensioning mounting seat 7 is used to provide an elastic driving force for the driven head seat 5, and the tensioning force is provided for the flexible chain belt 3 through telescopic tensioning. The structure is simple and reliable and does not require an additional groove rail structure. Compared with the traditional guide wheel tensioning structure, it has better working reliability, and an adjusting motor 8 is set on one side of the tensioning mounting seat 7. The spring push seat 9 is adjusted and driven through a screw guide column structure. The tension of the flexible chain belt 3 can be flexibly adjusted by changing the compression degree of the tensioning spring 10. No manual drive is required, which greatly improves the convenience of use of the device.

[0033] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0034] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible chain automatic tensioning mechanism, comprising a tensioning assembly (2) installed inside a flexible chain conveyor belt (1), characterized in that: A driving head seat (4) and a driven head seat (5) are respectively arranged on both sides of the flexible chain conveyor belt (1); the driven head seat (5) is movably and telescopically installed on the side of the flexible chain conveyor belt (1) under the connection of the tensioning component (2); and a flexible chain belt (3) is installed on the upper part of the flexible chain conveyor belt (1); The tensioning assembly (2) comprises a tensioning mounting seat (7), an adjusting motor (8), a spring push seat (9), a tensioning spring (10) and a metal guide column (12); the tensioning mounting seat (7) is fixedly mounted on the side of a bracket of the flexible chain conveyor belt (1); the driven head seat (5) is movably mounted on the side of the tensioning mounting seat (7) through the metal guide column (12); and the spring push seat (9) drives the tensioning spring (10) to contact the front of the driven head seat (5) under the drive of the adjusting motor (8).

2. The flexible chain automatic tensioning mechanism according to claim 1 is characterized in that: The driving head seat (4) is fixedly mounted on the side of the bracket of the flexible chain conveyor belt (1), and a driving motor (6) is arranged on the side of the driving head seat (4).

3. The flexible chain automatic tensioning mechanism according to claim 2, characterized in that: The tensioning mounting seat (7) is embedded in the side of the bracket of the flexible chain conveyor belt (1), and the side of the tensioning mounting seat (7) is provided with a mounting screw hole, and the inside of the mounting screw hole is provided with a mounting bolt (11). The tensioning mounting seat (7) is fixedly installed on the side of the bracket of the flexible chain conveyor belt (1) by the mounting bolt (11).

4. The flexible chain automatic tensioning mechanism according to claim 3 is characterized in that: The number of the metal guide pillars (12) is four, and the four metal guide pillars (12) are respectively fixed at the four front corners of the driven head seat (5). A guide pillar insertion hole (13) is provided through the front of the tensioning mounting seat (7). The metal guide pillar (12) is slidably inserted into the inside of the guide pillar insertion hole (13), and the driven head seat (5) is movably mounted on the side of the flexible chain conveyor belt (1) through the metal guide pillars (12).

5. The flexible chain automatic tensioning mechanism according to claim 4, characterized in that: A push seat connecting seat (14) is fixed in the middle of the tensioning mounting seat (7), the adjusting motor (8) is fixedly mounted on the rear of the push seat connecting seat (14), a driving screw (15) is fixed to the driving shaft end of the adjusting motor (8), an adjusting screw hole (17) is provided at the rear of the spring push seat (9), and the spring push seat (9) is threadedly connected to the upper part of the driving screw (15) through the adjusting screw hole (17).

6. The flexible chain automatic tensioning mechanism according to claim 5, characterized in that: A sliding guide column (16) is evenly fixed on the front of the push seat connecting seat (14), and a guide socket (18) is arranged on the rear of the spring push seat (9). The spring push seat (9) is movably mounted on the upper part of the sliding guide column (16) through the guide socket (18).

7. The flexible chain automatic tensioning mechanism according to claim 6, characterized in that: The tensioning spring (10) is sleeved on the front part of the spring push seat (9), and a mounting boss is fixed in the middle of the connection side between the driven head seat (5) and the flexible chain conveyor belt (1), and the end of the tensioning spring (10) is sleeved on the outside of the mounting boss and contacts the front part of the driven head seat (5).

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