Tensioning mechanism

Abstract

The utility model discloses a tensioning mechanism. The tensioning mechanism comprises a conveying frame. A conveying assembly is arranged at one end of the conveying frame, a plurality of rollers are arranged on the conveying frame at intervals, and a chain is arranged between the conveying assembly and the rollers; a fixed chain wheel is arranged on one side of the roller; a tensioning chain wheel is arranged at the other end of the conveying frame; a spring is arranged on one side of the tensioning chain wheel; the conveying assembly is arranged to drive the rollers to rotate, meanwhile, the tensioning force of the chain is dynamically adjusted through the tensioning chain wheel, elastic deformation of the chain is dynamically compensated, and the conveying effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high temperature environment material conveying equipment technical field, concretely relates to a tensioning mechanism. BACKGROUND

[0002] Modern coating workshop generally adopts full automatic conveying system, wherein the drying furnace area needs to maintain continuous high temperature environment (conventional working temperature 200±20 DEG C) due to process requirement. At present, the mainstream of this area adopts double chain type conveying system of heavy load conveying chain according to ANSI B29.1 standard, including driving sprocket set, driven sprocket set and intermediate support rail and other components. Due to thermal expansion effect, the linear expansion amount of ordinary carbon steel chain can reach 1.2-1.8mm (200 DEG C) per meter under high temperature working condition, so that the system must be configured with periodic tensioning mechanism.

[0003] The current maintenance regulation requires that manual tensioning operation needs to be carried out every 200-300 hours of production, mainly adopting screw rod type mechanical tensioning device. Typical structure includes: fixed base, adjustable sliding block, M24 adjusting screw and locking nut and other components, and two people need to cooperate to operate every time, and the average time consumption is 45 minutes per station, the operation time is long, and the practicability is not strong.

[0004] At present, the chain tensioning mechanism of the mainstream chain type roller bed is complex, has many parts, has large work load and low efficiency and the like, and the problems are as follows:

[0005] (1) redundant structure: the traditional tensioning device contains 17-23 independent parts, including guide pin, lock washer and other vulnerable parts.

[0006] (2) difficulty in hot state adjustment: the risk of screw pair seizure increases due to metal expansion under high temperature environment, and operation can be carried out only when the equipment is cooled to below 80 DEG C.

[0007] (3) lack of dynamic compensation: the existing rigid adjustment mechanism cannot compensate the instantaneous elastic deformation of the chain in operation in real time.

[0008] (4) high maintenance cost: the annual maintenance working hours reach 120-150 hours per line, and special high temperature resistant tool set is needed.

[0009] (5) safety risk: there are high temperature burn and mechanical pinch injury and other occupational safety hazards during hot state maintenance. INVENTION CONTENTS

[0010] The utility model aims at providing a tensioning mechanism, which comprises: a conveying frame;

[0011] One end of the conveying frame is provided with a conveying assembly, a plurality of rollers are arranged on the conveying frame at intervals, and a chain is arranged between the conveying assembly and the rollers;

[0012] The roller wheel is provided with a fixed chain wheel on one side.

[0013] The conveying frame is provided with a tension chain wheel on the other end, and the tension chain wheel is provided with a spring on one side.

[0014] Preferably, the conveying assembly comprises a transmission wheel, and the transmission wheel is provided with an adjusting bolt below.

[0015] Preferably, the adjusting bolt is provided with a transmission fixing seat at the bottom.

[0016] Preferably, the roller wheel is matched and connected with a support seat on one side, and the support seat is fixedly connected with a fixing bolt between the support seat and the conveying frame.

[0017] Preferably, the support seat is fixedly connected with a fixing seat below.

[0018] Preferably, the chain is arranged below the fixed chain wheel.

[0019] Preferably, the chain wheel is arranged above the roller wheel.

[0020] Compared with the prior art, the beneficial effects of the present application are as follows:

[0021] The tensioning mechanism of the present application drives the roller wheel to rotate through the conveying assembly, dynamically adjusts the tension of the chain through the tension chain wheel, dynamically compensates the elastic deformation of the chain, and improves the conveying effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description,

[0023] Obviously, the drawings described below in the description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0024] Figure 1 It is a front view of the tensioning mechanism of the present application;

[0025] Figure 2 It is an enlarged schematic view of part A of the present application;

[0026] Figure 3 It is a structural schematic view of the conveying assembly of the present application;

[0027] Figure 4 It is a structural schematic view of the transmission assembly of the present application.

[0028] In the figure: 1, conveying frame, 2, conveying assembly, 201, transmission wheel, 202, adjusting bolt, 203, transmission fixing seat, 3, fixed chain wheel, 4, roller, 5, fixing seat, 6, chain, 7, tensioning sprocket, 8, spring, 9, fixing bolt, 10, support seat. DETAILED DESCRIPTION

[0029] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0030] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0031] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0032] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms may also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For the person skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0033] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] Example 1

[0036] Figures 1-4 This utility model provides a tensioning mechanism suitable for automated conveying systems where the working temperature is maintained in the range of 180-220℃ for a long time and where there is periodic thermal shock. It can be widely used in continuous heat treatment production lines in industries such as automobile manufacturing, metal processing, and ceramic firing, especially for key workstations such as overhead chain conveying systems and chain roller conveying systems that require high stability. The mechanism includes: conveyor frame 1.

[0037] A conveying component 2 is provided at one end of the conveying frame 1, and multiple rollers 4 are spaced apart on the conveying frame 1. A chain 6 is provided between the conveying component 2 and the rollers 4.

[0038] A fixed sprocket 3 is provided on one side of the roller 4;

[0039] A tension sprocket 7 is provided at the other end of the conveyor frame 1, and a spring 8 is provided on one side of the tension sprocket 7.

[0040] According to an embodiment of the present invention, the conveying assembly 2 includes a drive wheel 201, and an adjusting bolt 202 is provided below the drive wheel 201.

[0041] According to an embodiment of the present invention, a transmission fixing seat 203 is provided at the bottom of the adjusting bolt 202.

[0042] According to an embodiment of the present invention, a support seat 10 is connected to one side of the roller 4, and a fixing bolt 9 is fixedly connected between the support seat 10 and the conveyor frame 1.

[0043] According to an embodiment of the present invention, a fixed base is fixedly connected to the lower part of the support base 10.

[0044] According to an embodiment of the present invention, the chain 6 is disposed below the fixed sprocket 3.

[0045] According to an embodiment of the present invention, the sprocket is disposed above the roller 4.

[0046] In summary, the tensioning mechanism of the application, by setting the conveying assembly 2 drive roller 4 rotation, while through the tensioning sprocket 7 dynamic adjustment of the tension of the chain 6, dynamic compensation of the elastic deformation of the chain 6, improve the conveying effect.

[0047] Finally, it should be noted that the above is only the preferred embodiment of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A tensioning mechanism comprising: The utility model provides a conveying frame, its characterized in be, One end of the conveying frame is provided with a conveying assembly, a plurality of rollers are arranged at intervals on the conveying frame, and a chain is arranged between the conveying assembly and the rollers; One side of the roller is provided with a fixed sprocket; The other end of the conveying frame is provided with a tension sprocket, and one side of the tension sprocket is provided with a spring.

2. A tensioning mechanism as claimed in claim 1, characterized in that The conveying assembly comprises a transmission wheel, and an adjusting bolt is arranged below the transmission wheel.

3. A tensioning mechanism as claimed in claim 2, characterized in that A transmission fixing seat is arranged at the bottom of the adjusting bolt.

4. A tensioning mechanism as claimed in claim 1, characterized in that One side of the roller is connected in cooperation with a support seat, and a fixing bolt is fixedly connected between the support seat and the conveying frame.

5. A tensioning mechanism as claimed in claim 4, characterized in that A fixing seat is fixedly connected below the support seat.

6. A tensioning mechanism as claimed in claim 1, characterized in that The chain is arranged below the fixed sprocket.

7. A tensioning mechanism as claimed in claim 1, characterized in that The sprocket is arranged above the roller.

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