Pitch changing mechanism based on synchronous belt

Abstract

The utility model relates to the technical field of pitch changing mechanisms, and discloses a pitch changing mechanism based on a synchronous belt, a fast sliding table is fixedly installed on the upper portion of a synchronous toothed belt, a synchronous belt idle pulley is installed on the side of a slow sliding table, a fixed synchronous belt is fixedly installed on the side of a fixed support, and the synchronous belt idle pulley is installed between the synchronous toothed belt and the fixed synchronous belt. A fixed synchronous belt is fixedly installed on the upper portion of a fixed support, a synchronous belt idle wheel is installed on the upper portion of a slow sliding table, the synchronous belt idle wheel is located between a moving synchronous toothed belt and the fixed synchronous belt, and the synchronous toothed belt drives the synchronous belt idle wheel to move in the same direction at the speed of 1 / 2. And the pushing plate seat is always kept in the center positions of the conveying belts on the two sides under the driving of the slow sliding table, the pitch changing mechanism is simple and reliable in structure, and compared with a traditional gear, toothed plate and multi-connecting-rod type pitch changing structure, the pitch changing mechanism is easier to manufacture and lower in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of pitch-changing mechanisms, in particular to a pitch-changing mechanism based on a synchronous belt. Background Art

[0002] With the rapid development of automated logistics, conveyor belt conveyors are more widely used. They are widely used in conveying occasions in cement, coking, metallurgy, chemical, steel and other industries. The conveyor belt is an important component of the conveyor as a supporting structure for carrying and transporting materials. In order to facilitate the transportation of workpieces of different specifications, the conveyor belt of the conveyor is equipped with a width adjustment function. When the width of the conveyor belt changes, in order to ensure that the push plate mechanism always remains in the center position of the conveyor belts on both sides, a pitch change mechanism needs to be set at the moving structure of the push plate mechanism. The pitch change mechanism of traditional conveyors is mainly divided into gear type, cam type and multi-link type, etc. However, this type of pitch change mechanism has a complex structure and requires more linkage working modes, with high manufacturing cost and maintenance difficulty. Utility Model Content

[0003] The purpose of the present utility model is to provide a pitch-changing mechanism based on a synchronous belt to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pitch-changing mechanism based on a synchronous belt, comprising: a fixed bracket, a drive motor, a synchronous toothed belt, a fixed side plate, a slow slide table, a fast slide table, a synchronous belt idler, a fixed synchronous belt and a synchronous belt pulley, wherein the synchronous toothed belt operates on the side of the fixed bracket under the drive motor, the fast slide table is fixedly mounted on the upper part of the synchronous toothed belt, a synchronous belt idler is mounted on the side of the slow slide table, the fixed synchronous belt is fixedly mounted on the side of the fixed bracket, and the synchronous belt idler is mounted between the synchronous toothed belt and the fixed synchronous belt;

[0005] A fixed side conveyor belt and a width-adjustable side conveyor belt are respectively provided on the upper portion of the fixed side plate and the fast slide platform, and a pushing plate seat is provided on the upper portion of the slow slide platform.

[0006] Preferably, the driving motor is fixed to the side of the fixing bracket by bolts, and there are two synchronous pulleys, which are respectively located on both sides of the fixing bracket.

[0007] Preferably, one side of the synchronous pulley is fixedly mounted on the rotating shaft end of the driving motor, and the other side of the synchronous pulley is rotatably mounted on the side of the fixed bracket, and the synchronous toothed belt is connected to the upper parts of the two synchronous pulleys.

[0008] Preferably, a guide rail is fixed to the rear side of the above-mentioned fixed bracket, and the slow slide table and the fast slide table are both slidably installed on the upper part of the guide rail. A synchronous belt connecting plate is fixed to the upper part of the synchronous toothed belt, and the fast slide table is fixedly connected to the synchronous toothed belt through the synchronous belt connecting plate.

[0009] Preferably, the above-mentioned synchronous belt idler is rotatably installed on the front side of the slow slide table through a rotating shaft, and the upper part of the synchronous belt idler is evenly provided with teeth and grooves, and the synchronous belt idler is respectively engaged with the synchronous toothed belt and the fixed synchronous belt through the teeth and grooves.

[0010] Preferably, a fitting push block is fixed to the lower front portion of the slow slide, and the synchronous toothed belt is tightly engaged with the upper side of the synchronous belt idler wheel under the push of the fitting push block.

[0011] Preferably, the fixed side plate is fixedly installed on the side of the fixed bracket by bolts, the fixed side conveyor belt is fixedly installed on the upper part of the fixed bracket by bolts, the pushing plate seat is fixedly installed on the upper part of the slow slide table by bolts, and a pushing cylinder is provided on the upper part of the pushing plate seat, and the width-adjustable side conveyor belt is fixedly installed on the upper part of the fast slide table by bolts.

[0012] Compared with the prior art, the above technical solution adopted by the present invention has the following technical effects:

[0013] This device adopts an idler-type pitch-changing structure, in which the fixed synchronous belt is installed on the upper part of the fixed bracket and is fixed, and a synchronous belt idler is installed on the upper part of the slow slide. The synchronous belt idler is located between the moving synchronous toothed belt and the fixed synchronous belt. When the synchronous toothed belt moves, the synchronous belt idler is driven by the synchronous toothed belt to move in the same direction at a speed of 1 / 2, thereby realizing the pitch-changing adjustment between the slow slide and the fast slide. When the width of the conveyor belts on both sides changes, the push plate seat is always kept in the center position of the conveyor belts on both sides under the drive of the slow slide, so as to ensure that the push plate seat is always pushed in the center of the plate and will not be pushed crooked. The pitch-changing mechanism has a simple and reliable structure, and is simpler to manufacture and has a lower manufacturing cost than traditional gears, toothed plates and multi-link pitch-changing structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0015] Figure 1 This is a schematic diagram of the overall and external component installation structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front side structure of the pitch-changing mechanism of the present utility model;

[0017] Figure 3 For the utility model Figure 2 Schematic diagram of the structure of the middle A area;

[0018] Figure 4 This is a schematic diagram of the rear structure of the pitch-changing mechanism of the present utility model;

[0019] Figure 5 It is a schematic diagram of the lower structure of the pitch-changing mechanism of the present utility model.

[0020] Explanation of the accompanying symbols: 1. Fixed bracket; 2. Drive motor; 3. Synchronous toothed belt; 4. Fixed side plate; 5. Slow slide table; 6. Fast slide table; 7. Synchronous belt idler; 8. Fixed synchronous belt; 9. Synchronous belt pulley; 10. Synchronous belt connecting plate; 11. Guide rail; 12. Fixed side conveyor belt; 13. Adjustable width side conveyor belt; 14. Push plate seat; 15. Push cylinder. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] 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 efficacy and purpose that can be achieved by this application.

[0023] Example

[0024] See also Figure 1-5 The utility model provides a technical solution: a pitch-changing mechanism based on a synchronous belt, comprising: a fixed bracket 1, a driving motor 2, a synchronous toothed belt 3, a fixed side plate 4, a slow slide 5, a fast slide 6, a synchronous belt idler 7, a fixed synchronous belt 8 and a synchronous pulley 9. In order to provide the working driving force of the device, as shown in the attached Figure 2 As shown, the drive motor 2 is fixed to the side of the fixed bracket 1 by bolts, and there are two synchronous pulleys 9, which are located on both sides of the fixed bracket 1. Figure 4As shown, one side of the synchronous pulley 9 is fixedly installed on the rotating shaft end of the driving motor 2, and the other side of the synchronous pulley 9 is rotatably installed on the side of the fixed bracket 1. The synchronous toothed belt 3 is connected to the upper part of the two synchronous pulleys 9. The upper part of the synchronous toothed belt 3 is evenly provided with teeth and grooves, and is installed and connected to the synchronous pulley 9 through the teeth and grooves. The synchronous toothed belt 3 works on the side of the fixed bracket 1 under the drive of the driving motor 2, serving as the mobile driving structure of the device.

[0025] In order to facilitate the installation of the fixed side conveyor belt 12, as shown in the attached Figure 1 As shown, the fixed side plate 4 is fixedly installed on the side of the fixed bracket 1 by bolts, and the fixed side conveyor belt 12 is fixedly installed on the upper part of the fixed bracket 1 by bolts. In order to facilitate the movement and adjustment of the pushing plate seat 14, the pushing plate seat 14 is fixedly installed on the upper part of the slow slide 5 by bolts. In order to facilitate the workpiece pushing operation, a pushing cylinder 15 is provided on the upper part of the pushing plate seat 14. The pushing cylinder 15 can be a pneumatic cylinder. In order to realize the bandwidth adjustment of the conveyor belt, the width-adjusting side conveyor belt 13 is fixedly installed on the upper part of the fast slide 6 by bolts.

[0026] In order to facilitate the sliding support of the slow slide 5 and the fast slide 6, as shown in the attached Figure 4 As shown, a guide rail 11 is fixed to the rear side of the fixed bracket 1, and the slow slide 5 and the fast slide 6 are both slidably installed on the upper part of the guide rail 11. In order to facilitate the connection with the synchronous toothed belt 3, as shown in the attached Figure 2 As shown, a synchronous belt connecting plate 10 is fixed on the upper part of the synchronous toothed belt 3. The fast sliding platform 6 is fixedly connected to the synchronous toothed belt 3 through the synchronous belt connecting plate 10 and can move synchronously with the synchronous toothed belt 3.

[0027] In order to realize the variable pitch adjustment of the slow slide 5, as shown in the attached Figure 3As shown, a synchronous belt idler wheel 7 is installed on the side of the slow slide 5, and the synchronous belt idler wheel 7 is rotatably installed on the front side of the slow slide 5. In order to make the synchronous toothed belt 3 and the synchronous belt idler wheel 7 tightly meshed, a fitting push block is fixed on the lower front side of the slow slide 5. The synchronous toothed belt 3 is tightly meshed with the upper side of the synchronous belt idler wheel 7 under the push of the fitting push block. In order to realize the movement of the slow slide 5, a fixed synchronous belt 8 is fixedly installed on the side of the fixed bracket 1, and the synchronous belt idler wheel 7 is installed between the synchronous toothed belt 3 and the fixed synchronous belt 8. In order to realize the meshing transmission, teeth and grooves are evenly provided on the upper part of the synchronous belt idler wheel 7. The synchronous belt idler wheel 7 is divided by the teeth and grooves. It is meshed with the synchronous toothed belt 3 and the fixed synchronous belt 8. When the synchronous toothed belt 3 moves, the synchronous belt idler 7 is driven by the synchronous toothed belt 3 to move in the same direction at a speed of 1 / 2, thereby realizing the variable pitch adjustment between the slow slide 5 and the fast slide 6. When the width of the conveyor belts on both sides changes, the push plate seat 14 is always kept in the center position of the conveyor belts on both sides under the drive of the slow slide 5 to ensure that the push plate seat 14 is always pushed in the center of the plate and will not be pushed crooked. The synchronous toothed belt 3 is used for linear transmission. Compared with the traditional gear rack, the synchronous toothed belt 3 can bend and circulate, which can effectively reduce the overall structural size and complexity of the device.

[0028] Working principle or structural principle, when adjusting the width of the conveyor belt, the driving motor 2 drives the synchronous toothed belt 3 to move, and the fast slide 6 is fixedly connected to the synchronous toothed belt 3 through the synchronous belt connecting plate 10, so that the fast slide 6 drives the width adjustment side conveyor belt 13 and the synchronous toothed belt 3 to move together to realize the adjustment of the conveyor belt width. At the same time, the synchronous belt idler 7 installed on the side of the slow slide 5 rotates under the drive of the synchronous toothed belt 3, and the fixed synchronous belt 8 is installed on the fixed bracket 1 and remains stationary. The synchronous belt idler 7 is located between the synchronous toothed belt 3 and the fixed synchronous belt 8. When the synchronous toothed belt 3 moves, the synchronous toothed belt 3 drives the synchronous belt idler 7 to move in the same direction at a speed of 1 / 2, thereby realizing variable pitch movement. Driven by the slow slide 5, the push plate seat 14 always remains in the center position of the conveyor belts on both sides to ensure that the push plate seat 14 is always pushed to the center of the board and will not be pushed crooked.

[0029] In summary, the present device adopts an idler-type pitch-varying structure, in which the fixed synchronous belt 8 is installed on the upper part of the fixed bracket 1 and is fixed thereon, and a synchronous belt idler 7 is installed on the upper part of the slow slide 5, and the synchronous belt idler 7 is located between the moving synchronous toothed belt 3 and the fixed synchronous belt 8. When the synchronous toothed belt 3 moves, the synchronous belt idler 7 is driven by the synchronous toothed belt 3 to move in the same direction at a speed of 1 / 2, thereby realizing pitch-varying adjustment between the slow slide 5 and the fast slide 6. When the width of the conveyor belts on both sides changes, the push plate seat 14 is driven by the slow slide 5 to always maintain the center position of the conveyor belts on both sides, so as to ensure that the push plate seat 14 is always pushed in the center of the plate and will not be pushed crooked. The pitch-varying mechanism has a simple and reliable structure, and is simpler to manufacture and has a lower manufacturing cost than traditional gears, toothed plates and multi-link pitch-varying structures.

[0030] The embodiments of the present invention have been described in detail with reference to the accompanying drawings. It should be noted that any implementations not depicted or described in the drawings or the main text of the specification are known to those skilled in the art and are not described in detail. Furthermore, the definitions of the various components described above are not limited to the specific structures, shapes, or methods described in the embodiments; those skilled in the art may easily modify or replace them.

[0031] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. 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 scope of protection of the present invention.

Claims

1. A pitch-changing mechanism based on a synchronous belt, characterized in that: include: A fixed bracket (1), a driving motor (2), a synchronous toothed belt (3), a fixed side plate (4), a slow slide table (5), a fast slide table (6), a synchronous belt idler wheel (7), a fixed synchronous belt (8) and a synchronous belt pulley (9); the synchronous toothed belt (3) is driven by the driving motor (2) to work on the side of the fixed bracket (1); the fast slide table (6) is fixedly mounted on the upper part of the synchronous toothed belt (3); a synchronous belt idler wheel (7) is mounted on the side of the slow slide table (5); the fixed synchronous belt (8) is fixedly mounted on the side of the fixed bracket (1); and the synchronous belt idler wheel (7) is mounted between the synchronous toothed belt (3) and the fixed synchronous belt (8); The upper parts of the fixed side plate (4) and the fast slide (6) are respectively provided with a fixed side conveyor belt (12) and a width-adjustable side conveyor belt (13), and the upper part of the slow slide (5) is provided with a push plate seat (14).

2. The pitch-changing mechanism based on a synchronous belt according to claim 1, characterized in that: The driving motor (2) is fixedly mounted on the side of the fixed bracket (1) by means of bolts. There are two synchronous pulleys (9), which are respectively located on both sides of the fixed bracket (1).

3. The pitch-changing mechanism based on a synchronous belt according to claim 2, characterized in that: The synchronous pulley (9) on one side is fixedly mounted on the rotating shaft end of the driving motor (2), and the synchronous pulley (9) on the other side is rotatably mounted on the side of the fixed bracket (1), and the synchronous toothed belt (3) is connected to the upper parts of the two synchronous pulleys (9).

4. The pitch-changing mechanism based on a synchronous belt according to claim 3, characterized in that: A guide rail (11) is fixed to the rear side of the fixed bracket (1), the slow slide (5) and the fast slide (6) are both slidably mounted on the upper part of the guide rail (11), a synchronous belt connecting plate (10) is fixed to the upper part of the synchronous toothed belt (3), and the fast slide (6) is fixedly connected to the synchronous toothed belt (3) through the synchronous belt connecting plate (10).

5. The pitch-changing mechanism based on a synchronous belt according to claim 4, characterized in that: The synchronous belt idler wheel (7) is rotatably mounted on the front side of the slow slide (5) via a rotating shaft, and tooth grooves are evenly arranged on the upper portion of the synchronous belt idler wheel (7). The synchronous belt idler wheel (7) is respectively engaged with the synchronous toothed belt (3) and the fixed synchronous belt (8) via the tooth grooves.

6. The pitch-changing mechanism based on a synchronous belt according to claim 5, characterized in that: A fitting push block is fixed to the front lower part of the slow slide (5), and the synchronous toothed belt (3) is tightly engaged with the upper side of the synchronous belt idler wheel (7) under the pushing of the fitting push block.

7. The pitch-changing mechanism based on a synchronous belt according to claim 1, characterized in that: The fixed side plate (4) is fixedly mounted on the side of the fixed bracket (1) by means of bolts, the fixed side conveyor belt (12) is fixedly mounted on the upper part of the fixed bracket (1) by means of bolts, the push plate seat (14) is fixedly mounted on the upper part of the slow slide table (5) by means of bolts, a push cylinder (15) is provided on the upper part of the push plate seat (14), and the width-adjustable side conveyor belt (13) is fixedly mounted on the upper part of the fast slide table (6) by means of bolts.

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