Pitch changing mechanism capable of independently adjusting tensioning of synchronous belt

Abstract

The utility model discloses a variable pitch mechanism capable of independently adjusting tension of a synchronous belt, which comprises a base, a power component, a driven component and a variable pitch slider component, the power component, the driven component and the variable pitch slider component are arranged on the base, and the power component and the driven component jointly drive the variable pitch slider component to slide on the base. The power assembly comprises a motor, a transmission shaft arranged on the motor, a large driving wheel and a small driving wheel, the large driving wheel and the small driving wheel are arranged on the transmission shaft, the driven assembly comprises a large driven wheel and a small driven wheel which are split, the large driving wheel and the large driven wheel are connected through a belt, and the small driving wheel and the small driven wheel are connected through a belt. The large driven wheel and the small driven wheel are designed in a split mode, when the tensioning force of the belt needs to be adjusted, the large driven wheel or the small driven wheel can be independently adjusted so that the tensioning force of the single belt can be adjusted, flexibility is better, and cost is lower due to the split design.

Description

Technical Field

[0001] The utility model belongs to the technical field of pitch-changing mechanisms, and particularly relates to a pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt. Background Art

[0002] The synchronous belt pitch-changing module is a type of module, also called a synchronous pitch-changing mechanism. It is usually used in automation equipment, such as mold manufacturing, automation equipment, optical measuring instruments, 3C industry, semiconductor industry, electronics industry, medical industry, packaging machine industry, manipulator, new energy vehicles, wires and cables, shipbuilding and other fields.

[0003] Its working principle is generally to drive the material picking module or slide and other components to change pitch at the same time through the linkage of variable pitch rotating shaft, variable pitch driving motor and synchronous belt structure.

[0004] At present, the synchronous belt pitch change module generally realizes pitch change through two sets of synchronous pulleys and belts. Each set of synchronous pulleys includes two synchronous pulleys, one large and one small. The two synchronous pulleys are usually an integrated linkage structure. When the tensioning force of the synchronous belt needs to be adjusted, only the two synchronous pulleys of a set of synchronous belts can be adjusted at the same time, and one of the synchronous pulleys cannot be adjusted separately. Therefore, the flexibility is not high, and the cost of the linked synchronous pulleys is also high.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a variable pitch mechanism which can independently adjust the tension of a synchronous belt, thereby overcoming the defects in the above-mentioned prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a variable pitch mechanism that can independently adjust the tension of a synchronous belt, including a base, a power assembly arranged on the base, a driven assembly and a variable pitch slider assembly, the power assembly and the driven assembly jointly drive the variable pitch slider assembly to slide on the base, the power assembly includes a motor, a transmission shaft arranged on the motor, and a large driving wheel and a small driving wheel arranged on the transmission shaft, the driven assembly includes a split large driven wheel and a small driven wheel, and the large driving wheel and the large driven wheel, and the small driving wheel and the small driven wheel are respectively connected by belts.

[0008] Further, as a preference, a tension adjustment seat is provided on the base, and the large driven wheel and the small driven wheel are respectively provided with a first tension adjustment plate and a second tension adjustment plate, and the first tension adjustment plate and the second tension adjustment plate are respectively detachably connected to the tension adjustment seat.

[0009] Further, as a preference, the tension adjustment seat is provided with a support step, and the first tension adjustment plate and the second tension adjustment plate are respectively arranged on the support step.

[0010] Furthermore, as a preference, adjustment grooves are respectively provided on the outer sides of the first tension adjustment plate and the second tension adjustment plate.

[0011] Further, as a preference, the ends of the first tensioning adjustment plate and the second tensioning adjustment plate are respectively provided with an extended protection block structure.

[0012] Further, as a preference, the first tension adjustment plate and the second tension adjustment plate are also connected to a driven component protection cover, and the large driven wheel and the small driven wheel are located in the driven component protection cover.

[0013] Further, as a preference, the driven component protection cover and the tension adjustment seat are symmetrically arranged from bottom to top, and the first tension adjustment plate and the second tension adjustment plate are detachably connected to the driven component protection cover and the tension adjustment seat from the outside.

[0014] Furthermore, as a preference, a power assembly protection cover is also provided on the base, and the power assembly protection cover covers the large driving wheel and the small driving wheel.

[0015] Furthermore, as a preference, a slide rail is provided on the base, and the variable distance slider assembly is arranged on the slide rail and connected to a belt.

[0016] Further, preferably, the variable distance slider assembly includes at least two sliders.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the utility model, the large driven wheel and the small driven wheel are designed in a split type. When the belt tensioning force needs to be adjusted, the large driven wheel or the small driven wheel can be adjusted separately to achieve the adjustment of the tensioning force of a single belt, which has better flexibility and lower design cost.

[0019] The utility model adopts the combined design of the tension adjustment seat and the first tension adjustment plate and the second tension adjustment plate. When adjusting the tension force, it is only necessary to adjust the installation position of the first tension adjustment plate or the second tension adjustment plate and the tension adjustment seat, which is simple and convenient to operate.

[0020] The utility model also provides a driven component protection cover, a power component protection cover, etc., which have a good protective effect on the driven component and the power component. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to the utility model;

[0022] Figure 2 It is a three-dimensional partial structure enlarged schematic diagram of a pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to the utility model;

[0023] Figure 3 This is a front view of a pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to the utility model;

[0024] Figure 4 This is a right view of a pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to the utility model;

[0025] Figure 5 It is an enlarged structural diagram of the right side view of a pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to the utility model;

[0026] Figure 6 It is an enlarged schematic diagram of the large driven wheel of the utility model;

[0027] Figure 7 It is an enlarged schematic diagram of the small driven wheel of the utility model;

[0028] Figure markings: 1-base, 2-power assembly, 21-motor, 22-transmission shaft, 23-large driving wheel, 24-small driving wheel, 3-driven assembly, 31-large driven wheel, 32-small driven wheel, 33-first tensioning adjustment plate, 34-second tensioning adjustment plate, 35-adjusting groove, 36-protective block structure, 4-variable distance slider assembly, 5-belt, 6-tensioning adjustment seat, 61-support step, 7-driven assembly protection cover, 71-protective cover step, 8-power assembly protection cover, 9-slide rail. DETAILED DESCRIPTION

[0029] The specific implementation modes of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0030] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be given later.

[0031] like Figure 1-7As shown, a variable pitch mechanism capable of independently adjusting the tension of a synchronous belt comprises a base 1, a power assembly 2, a driven assembly 3 and a variable pitch slider assembly 4 arranged on the base 1, wherein the power assembly 2 and the driven assembly 3 jointly drive the variable pitch slider assembly 4 to slide on the base 1, the power assembly 2 comprises a motor 21, a transmission shaft 22 arranged on the motor 21, and a large driving wheel 23 and a small driving wheel 24 arranged on the transmission shaft 22, the driven assembly 3 comprises a split large driven wheel 31 and a small driven wheel 32, and the large driving wheel 23 and the large driven wheel 31 as well as the small driving wheel 24 and the small driven wheel 32 are respectively connected by belts 5.

[0032] In this embodiment, as a specific solution, a tensioning adjustment seat 6 is provided on the base 1, and the large driven wheel 31 and the small driven wheel 32 are respectively provided with a first tensioning adjustment plate 33 and a second tensioning adjustment plate 34, and the first tensioning adjustment plate 33 and the second tensioning adjustment plate 34 are respectively detachably connected to the tensioning adjustment seat 6; more specifically, the first tensioning adjustment plate 33 is connected to the axis of the large driven wheel 31, and is located on the outside of the large driven wheel 31, and similarly, the second tensioning adjustment plate 34 is connected to the axis of the small driven wheel 32, and is located on the outside of the small driven wheel 32.

[0033] Principle description: When it is necessary to separately adjust the tensioning force of the large driving wheel 23 and the large driven wheel 31 or the tensioning force of the small driving wheel 24 and the small driven wheel 32, it is sufficient to separately adjust the installation position of the first tensioning adjustment plate 33 and the tensioning adjustment seat 6 or the installation position of the second tensioning adjustment plate 34 and the tensioning adjustment seat 6.

[0034] In this embodiment, as a specific solution, the tensioning adjustment seat 6 is provided with a supporting step 61, and the first tensioning adjustment plate 33 and the second tensioning adjustment plate 34 are respectively arranged on the supporting step 61; more specifically, the supporting step 61 is parallel to the base 1, and the setting of the supporting step 61 can ensure that when adjusting the tensioning force, the height of the large driven wheel 31 or the small driven wheel 32 will not change. The first tensioning adjustment plate 33 or the second tensioning adjustment plate 34 is moved at the position of the supporting step 61 to achieve horizontal adjustment, thereby achieving adjustment of the tensioning force, making the operation easier when adjusting the tensioning force.

[0035] In this embodiment, as a specific solution, the first tension adjustment plate 33 and the second tension adjustment plate 34 are respectively provided with adjustment grooves 35 on their outer sides; when the tensioning force needs to be adjusted, the operator can push the adjustment plate from the adjustment groove 35, which is more convenient for the operator to operate.

[0036] In this embodiment, as a specific solution, the ends of the first tensioning adjustment plate 33 and the second tensioning adjustment plate 34 are respectively provided with an extended protective block structure 36; more specifically, the first tensioning adjustment plate 33 and the second tensioning adjustment plate 34 are both L-shaped structures, and one side of the L-shaped structure serves as an extended protective block structure 36, which can provide a certain degree of protection for the large driven wheel 31 and the small driven wheel 32 from the outside.

[0037] In this embodiment, as a specific solution, the first tension adjustment plate 33 and the second tension adjustment plate 34 are further connected to a driven component protection cover 7 , and the large driven wheel 31 and the small driven wheel 32 are located in the driven component protection cover 7 .

[0038] In this embodiment, as a more specific solution, the driven component protection cover 7 and the tensioning adjustment seat 6 are symmetrically arranged from bottom to top. Similarly, protection cover steps 71 corresponding to the support steps 61 are also arranged on both sides of the driven component protection cover 7. The first tensioning adjustment plate 33 and the second tensioning adjustment plate 34 are detachably connected to the driven component protection cover 7 and the tensioning adjustment seat 6 from the outside; more specifically, the first tensioning adjustment plate 33 and the second tensioning adjustment plate 34 are respectively connected to the driven component protection cover 7 and the tensioning adjustment seat 6 at the protection cover step 71 and the support step 61 at the top and bottom; similarly, when adjusting the tensioning force, it is only necessary to push the first tensioning adjustment plate 33 and the second tensioning adjustment plate 34 in the horizontal direction, which can protect the large driven wheel 31 and the small driven wheel 32, and the tensioning force adjustment operation is more convenient.

[0039] In this embodiment, as a specific solution, a power assembly protection cover 8 is further provided on the base 1 , and the power assembly protection cover 8 covers the large driving wheel 23 and the small driving wheel 24 .

[0040] In this embodiment, as a specific solution, the base 1 is provided with a slide rail 9, and the variable distance slider assembly 4 is arranged on the slide rail 9 and connected to the belt 5; more specifically, the variable distance slider assembly 4 includes at least two sliders. When working, the power assembly 2 drives the driven assembly 3 to move, and during the movement, the belt 5 drives the multiple sliders to move, so as to achieve the change of the spacing between the multiple sliders; this part belongs to the conventional technology of the variable distance mechanism, and will not be described in detail here.

[0041] The large driven wheel 31 and the small driven wheel 32 of the utility model adopt a split design. When the belt tensioning force needs to be adjusted, the large driven wheel 31 or the small driven wheel 32 can be adjusted separately to achieve the adjustment of the tensioning force of a single belt, which has better flexibility and lower design cost.

[0042] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A variable pitch mechanism capable of independently adjusting the tension of a synchronous belt, comprising a base, a power assembly, a driven assembly and a variable pitch slider assembly arranged on the base, wherein the power assembly and the driven assembly jointly drive the variable pitch slider assembly to slide on the base, characterized in that: The power assembly includes a motor, a transmission shaft arranged on the motor, and a large driving wheel and a small driving wheel arranged on the transmission shaft. The driven assembly includes a split large driven wheel and a small driven wheel. The large driving wheel and the large driven wheel and the small driving wheel and the small driven wheel are respectively connected by belts.

2. A pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to claim 1, characterized in that: The base is provided with a tension adjustment seat, and the large driven wheel and the small driven wheel are respectively provided with a first tension adjustment plate and a second tension adjustment plate, and the first tension adjustment plate and the second tension adjustment plate are respectively detachably connected to the tension adjustment seat.

3. A pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to claim 2, characterized in that: The tension adjustment seat is provided with a supporting step, and the first tension adjustment plate and the second tension adjustment plate are respectively arranged on the supporting step.

4. The pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to claim 3, characterized in that: The first tension adjustment plate and the second tension adjustment plate are also provided with adjustment grooves on their outer sides.

5. The pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to claim 2, characterized in that: The ends of the first tensioning and adjusting plate and the second tensioning and adjusting plate are respectively provided with extension protection blocking structures.

6. The pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to claim 2, characterized in that: The first tension adjustment plate and the second tension adjustment plate are also connected to a driven component protection cover, and the large driven wheel and the small driven wheel are located in the driven component protection cover.

7. A pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to claim 6, characterized in that: The driven component protection cover and the tension adjustment seat are symmetrically arranged from bottom to top, and the first tension adjustment plate and the second tension adjustment plate are detachably connected to the driven component protection cover and the tension adjustment seat from the outside.

8. The pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to claim 1, characterized in that: A power assembly protection cover is also provided on the base, and the power assembly protection cover covers the large driving wheel and the small driving wheel.

9. The pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to claim 1, characterized in that: The base is provided with a slide rail, and the variable distance slider assembly is arranged on the slide rail and connected with a belt.

10. A pitch-changing mechanism capable of independently adjusting the tension of a synchronous belt according to claim 9, characterized in that: The variable distance slider assembly includes at least two sliders.

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