A belt tensioner adjustment device

Abstract

The utility model belongs to cigarette conveying technical field discloses a kind of belt tensioning wheel adjusting device, including mounting bracket and adjusting mechanism, adjusting mechanism includes support subassembly, locking subassembly, first adjusting subassembly and second adjusting subassembly, support subassembly includes the inner support and outer support installed in the front and rear two sides of mounting bracket, respectively for installing front pulley and rear pulley;Locking subassembly is adjustably connected in mounting bracket along first direction position, with the locking state of locking support subassembly in mounting bracket and the unlocking state of releasing support subassembly, can drive support subassembly to move along first direction under unlocking state;First adjusting subassembly is connected in mounting bracket, its output end is coupled with locking subassembly, can drive locking subassembly to move under unlocking state;Inner support is adjustably connected in locking subassembly along first direction position, second adjusting subassembly is coupled in inner support and locking subassembly, for driving inner support relative to locking subassembly moves.

Description

Technical Field

[0001] This utility model relates to the field of cigarette conveying technology, and in particular to a belt tensioner adjustment device. Background Technology

[0002] In the tobacco processing and production field, cigarette storage and conveying devices are key equipment for cigarette transport, and the stable operation of the flat belt in the vertical lifting section directly determines the efficiency and quality of cigarette transport. Existing cigarette storage and conveying devices use a traditional manual tensioning method for the flat belt in the vertical lifting section. Workers must repeatedly rotate the adjusting bolts using wrenches and other tools, a cumbersome process that takes at least 30 minutes per adjustment, consuming equipment maintenance time and significantly reducing maintenance efficiency. This makes it difficult to meet the high-efficiency operation and maintenance requirements of modern production lines.

[0003] Meanwhile, due to differences in material selection (e.g., rubber at the front and polyurethane at the rear) and specifications (e.g., thickness and width deviations) of the front and rear flat belts in the cigarette storage and conveying device, uneven tension distribution is prone to occur during operation. Excessive tension in some areas leads to overstretching and deformation of the belt, while insufficient tension in others causes belt slack. This accelerates the wear of the flat belts and their associated drive pulleys, tensioning pulleys, and other spare parts, shortening their lifespan and increasing equipment maintenance costs and replacement frequency. Furthermore, uneven tension can directly cause conveying malfunctions such as belt misalignment and detachment, and cigarettes becoming misaligned and stuck in the lifting channel. This not only results in cigarette breakage and waste but may also trigger the downstream equipment's interlocking shutdown protection mechanism, causing the entire production line to be interrupted, severely impacting production continuity and product qualification rate.

[0004] Therefore, there is an urgent need to propose a belt tensioner adjustment device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this invention is to provide a belt tensioner adjustment device to simplify the adjustment process, improve equipment maintenance efficiency, enhance tension adjustment accuracy, ensure uniform tension distribution between the front and rear flat belts, extend the service life of components, and guarantee conveying stability and cigarette quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A belt tensioner adjustment device includes a mounting bracket and an adjustment mechanism, wherein the adjustment mechanism includes:

[0008] The support assembly includes an inner support and an outer support. The inner support is located on the front side of the mounting bracket and is used to install the front pulley. The outer support is located on the rear side of the mounting bracket and is used to install the rear pulley.

[0009] A locking assembly is adjustablely connected to the mounting bracket along a first direction, and has a locked state that locks the support assembly to the mounting bracket and an unlocked state that releases the support assembly. In the unlocked state, the support assembly can be moved along the first direction.

[0010] A first adjustment component is connected to the mounting bracket, and its output end is coupled to the locking component, for driving the locking component to move along the first direction in the unlocked state;

[0011] The second adjustment component is connected to the locking component in an adjustable position along the first direction. The second adjustment component is coupled between the inner support and the locking component and is used to drive the inner support to move relative to the locking component along the first direction.

[0012] In some optional embodiments, the mounting bracket has a first adjustment groove extending along the first direction, the locking component passes through the first adjustment groove, and its two ends are threadedly connected to the outer support and the inner support, respectively.

[0013] In some optional embodiments, the first adjusting component includes a fixed base and an adjusting gear and an adjusting rack that mesh with each other. The fixed base is mounted on the mounting bracket, and the adjusting rack is slidably connected to the fixed base along the first direction and coupled to the locking component.

[0014] In some optional embodiments, the adjusting rack includes a sliding portion and a rack portion disposed on the sliding portion. The fixed base has a dovetail groove extending in a first direction and a clearance groove communicating with the dovetail groove. The clearance groove is used to accommodate the rack portion. The sliding portion is slidably engaged with the dovetail groove, and the rack portion meshes with the adjusting gear.

[0015] In some optional embodiments, the mounting bracket has a second adjustment groove communicating with the first adjustment groove, the adjustment rack further includes an adjustment part disposed on the sliding part, the adjustment part passes through the second adjustment groove, and the adjustment part has a limit groove, the locking component is limited within the limit groove.

[0016] In some optional embodiments, the first adjusting component further includes an adjusting wheel shaft, the adjusting wheel shaft including a rotating shaft and a rotating wheel connected to the rotating shaft, the rotating shaft being coaxially connected to the adjusting gear.

[0017] In some alternative embodiments, the first adjusting assembly further includes a locking member threadedly connected to the fixed seat for radial abutment against the rotating shaft; and / or,

[0018] The first adjustment component also includes a retaining ring, and the end of the rotating shaft away from the rotating wheel is provided with a positioning groove, and the retaining ring can be engaged with the positioning groove.

[0019] In some optional embodiments, the second adjusting component includes an adjusting screw, the inner support has a third adjusting groove and a threaded hole extending in a first direction and communicating therewith, the locking component passes through the third adjusting groove, the adjusting screw is threaded into the threaded hole, and one end abuts against the locking component.

[0020] In some alternative embodiments, the second adjusting assembly further includes an adjusting nut that is threadedly engaged with the adjusting screw to lock the adjusting screw to the inner support.

[0021] In some alternative embodiments, the belt tensioner adjustment device includes at least two of the adjustment mechanisms, respectively disposed at both ends of the mounting bracket.

[0022] The beneficial effects of this utility model are:

[0023] This utility model provides a belt tensioner adjustment device, including a mounting bracket and an adjustment mechanism. The adjustment mechanism includes a support assembly, a locking assembly, a first adjustment assembly, and a second adjustment assembly. The support assembly includes an inner support and an outer support. The inner support is located on the front side of the mounting bracket and is used to install the front pulley, with the front flat belt tensioned on the front pulley. The outer support is located on the rear side of the mounting bracket and is used to install the rear pulley, with the rear flat belt tensioned on the rear pulley. The locking assembly is adjustablely connected to the mounting bracket along a first direction and has a locked state where the support assembly is locked to the mounting bracket and an unlocked state where the support assembly is released. In the unlocked state, the support assembly can be moved along the first direction. The first adjustment assembly is connected to the mounting bracket, and its output end is coupled to the locking assembly, for driving the locking assembly to move along the first direction in the unlocked state. The inner support is adjustablely connected to the locking assembly along the first direction, and the second adjustment assembly is coupled between the inner support and the locking assembly, for driving the inner support to move relative to the locking assembly along the first direction.

[0024] During adjustment, firstly, loosen the locking assembly to put it in the unlocked state. At this time, both the inner and outer supports maintain a limiting connection with the locking assembly and can move along the first direction with the locking assembly. Next, drive the locking assembly to move along the first direction through the first adjustment assembly, thereby causing the inner and outer supports to move simultaneously to reach the preset tension position. Then, drive the inner support to move relative to the locking assembly along the first direction through the second adjustment assembly, thereby adjusting the position of the front pulley to fine-tune the tension of the front flat belt. Finally, after calibrating the tension of the front and rear flat belts using a tension testing tool, switch the locking assembly to the locked state to fix the positions of the inner and outer supports, completing the tension adjustment.

[0025] By using the aforementioned belt tensioner adjustment device, the first adjustment component synchronously adjusts the entire support assembly, while the second adjustment component individually fine-tunes the inner support. This simplifies the independent, multiple adjustment steps for the front and rear pulleys into a two-stage tension adjustment process. This not only saves adjustment time and improves equipment maintenance efficiency but also enhances the accuracy of tension adjustment, ensuring uniform tension distribution between the front and rear flat belts. Consequently, it extends the service life of components and guarantees the stability of the conveying process and the quality of the cigarettes. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the belt tensioner adjusting device described in this embodiment of the utility model. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the structure of the belt tensioner adjusting device described in this embodiment of the utility model. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the structure of the mounting bracket described in an embodiment of the present utility model;

[0030] Figure 4 This is an exploded view of the adjustment mechanism described in an embodiment of this utility model.

[0031] In the picture:

[0032] 100. Front pulley; 200. Rear pulley;

[0033] 10. Mounting bracket; 11. First adjustment slot; 12. Second adjustment slot;

[0034] 20. Adjustment mechanism;

[0035] 21. Support assembly; 211. Inner support; 2111. Third adjusting groove; 2112. Threaded hole; 212. Outer support;

[0036] 22. Locking assembly;

[0037] 23. First adjusting component; 231. Fixed base; 2311. Dovetail groove; 2312. Clearance groove; 2313. Mounting block; 232. Adjusting gear; 233. Adjusting rack; 2331. Sliding part; 2332. Rack part; 2333. Adjusting part; 2334. Limiting groove; 234. Adjusting wheel axle; 2341. Rotating shaft; 2342. Rotating wheel; 235. Locking element; 236. Snap ring;

[0038] 24. Second adjustment component; 241. Adjusting screw; 242. Adjusting nut. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0040] In this invention, the terms "comprising," "including," "having," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0041] In this invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "and / or" relationship.

[0042] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," "combined," "coupled," and "installed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For example, a direct connection refers to two parts or components being connected together without an intermediate component, while an indirect connection refers to two parts or components each being connected to at least one intermediate component, with the connection achieved through the intermediate component. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0043] In this invention, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0044] In this invention, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can be performed by one part, one component, or a combination of multiple parts.

[0045] In this utility model, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationships shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, in the context, it should be understood that when an element is mentioned as being "upper" or "lower" of another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as "upper side," "lower side," "left side," "right side," "front side," and "rear side" not only represent positive orientation but can also be understood as lateral orientation. For example, "above," "on top of," "upper side of," and "above" of the first feature and the second feature include the first feature being directly above, to the upper left, to the upper right, to the upper front, and to the upper rear of the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. The terms "below," "under," "below," and "below" for "first feature" and "second feature" include situations where the first feature is directly below, to the lower left, to the lower right, in front of, or behind the second feature, or simply indicate that the first feature is at a lower horizontal level than the second feature. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0046] like Figure 1 ` Figure 4 As shown, this embodiment provides a belt tensioning pulley adjustment device for adjusting the tension of the transition flat belt in the vertical lifting section of the cigarette storage and conveying device. It should be noted that the transition flat belt in the vertical lifting section includes a front flat belt and a rear flat belt. Due to the differences in material selection and specifications, uneven tension distribution is likely to occur during operation. Therefore, it is necessary to adjust the positions of the front belt tensioning pulley (hereinafter referred to as the front belt pulley 100) and the rear belt tensioning pulley (hereinafter referred to as the rear belt pulley 200) to ensure that the tension of the front flat belt and the rear flat belt is uniform.

[0047] Therefore, the belt tensioner adjustment device provided in this embodiment includes a mounting bracket 10 and an adjustment mechanism 20. The adjustment mechanism 20 includes a support assembly 21, a locking assembly 22, a first adjustment assembly 23, and a second adjustment assembly 24. The support assembly 21 includes an inner support 211 and an outer support 212. The inner support 211 is located on the front side of the mounting bracket 10 and is used to install the front pulley 100, on which the front flat belt is tensioned. The outer support 212 is located on the rear side of the mounting bracket 10 and is used to install the rear pulley 200, on which the rear flat belt is tensioned. The locking assembly 22 is adjustable along a first direction. The mounting bracket 21 is connected to the mounting bracket 10 and has a locked state where the support assembly 21 is locked to the mounting bracket 10 and an unlocked state where the support assembly 21 is released. In the unlocked state, the support assembly 21 can be moved along a first direction. A first adjusting component 23 is connected to the mounting bracket 10, and its output end is coupled to the locking component 22, which is used to drive the locking component 22 to move along the first direction in the unlocked state. An inner support 211 is adjustablely connected to the locking component 22 along the first direction. A second adjusting component 24 is coupled between the inner support 211 and the locking component 22, which is used to drive the inner support 211 to move relative to the locking component 22 along the first direction. Here, the first direction is the length direction of the mounting bracket 10. In the vertical lifting section of the cigarette storage and conveying device, the mounting bracket 10 is arranged in a vertical direction, so the first direction is also the vertical direction.

[0048] During adjustment, firstly, the locking assembly 22 is loosened, placing it in the unlocked state. At this time, both the inner support 211 and the outer support 212 maintain a limiting connection with the locking assembly 22 and can move along the first direction with the locking assembly 22. Next, the locking assembly 22 is driven to move along the first direction by the first adjustment assembly 23, thereby causing the inner support 211 and the outer support 212 to move simultaneously to reach the preset tension position. Then, the inner support 211 is driven to move relative to the locking assembly 22 along the first direction by the second adjustment assembly 24, thereby adjusting the position of the front pulley 100 to fine-tune the tension of the front flat belt. Finally, after calibrating the tension of the front and rear flat belts using a tension testing tool, the locking assembly 22 is switched to the locked state, fixing the positions of the inner support 211 and the outer support 212, thus completing the tension adjustment.

[0049] By using the aforementioned belt tensioner adjustment device, the first adjustment component 23 is used to synchronously adjust the support assembly 21 as a whole, and the second adjustment component 24 is used to finely adjust the inner support 211 individually. This simplifies the independent multiple adjustment steps of the front pulley 100 and the rear pulley 200 into a two-stage tension adjustment step. This not only saves adjustment time and improves equipment maintenance efficiency, but also enhances the accuracy of tension adjustment, ensuring uniform tension distribution between the front and rear flat belts, thereby extending the service life of the components and ensuring the stability of the conveying process and the quality of the cigarettes.

[0050] The mounting bracket 10 has a first adjustment groove 11 extending in a first direction. The locking component 22 passes through the first adjustment groove 11, and its two ends are threadedly connected to the outer support 212 and the inner support 211, respectively. By tightening the locking component 22, the outer support 212 and the inner support 211 are locked to the mounting bracket 10 to switch to the locked state. By loosening the locking component 22 but not separating it from the locking component 22, the support component 21 can be adjusted.

[0051] In this embodiment, the locking assembly 22 includes a locking bolt, which passes through the first adjusting groove 11 and is threadedly connected to the outer support 212 and the inner support 211. Its head can press against the inner support 211, thereby locking the outer support 212 and the inner support 211 to the mounting bracket 10.

[0052] In other embodiments, the locking assembly 22 includes a threaded screw and a nut. The screw passes through the first adjusting groove 11 and is threadedly connected to the outer support 212 and the inner support 211. Both ends of the screw are threadedly engaged with the nut, thereby locking the outer support 212 and the inner support 211 to the mounting bracket 10.

[0053] like Figure 4 As shown, in some optional embodiments, the first adjusting assembly 23 includes a fixed base 231 and an adjusting gear 232 and an adjusting rack 233 meshing with each other. The fixed base 231 is mounted on the mounting bracket 10. The adjusting rack 233 is slidably connected to the fixed base 231 along a first direction and coupled to the locking assembly 22. By rotating the adjusting gear 232, the adjusting rack 233 moves along the first direction, thereby driving the locking assembly 22 to move the support assembly 21 along the first direction. The rotation angle of the adjusting gear 232 and the moving distance of the adjusting rack 233 always maintain a fixed transmission ratio, which can effectively improve the tension adjustment accuracy, thereby saving adjustment time and improving adjustment efficiency.

[0054] Specifically, the adjusting rack 233 includes a sliding part 2331 and a rack part 2332 disposed on the sliding part 2331. The fixed base 231 has a dovetail groove 2311 extending in a first direction and a relief groove 2312 communicating with the dovetail groove 2311. The relief groove 2312 is used to accommodate the rack part 2332. The sliding part 2331 is slidably engaged with the dovetail groove 2311, and the rack part 2332 meshes with the adjusting gear 232. The dovetail groove 2311 has a trapezoidal cross-section and forms a wedge-shaped fit with the sliding part 2331. The connection is stable and strong. When the sliding part 2331 is under force, the contact pressure on the two inclined surfaces is uniform, so that the sliding part 2331 and the fixed seat 231 are always tightly fitted, reducing transmission play caused by gaps. Even under long-term use or vibration conditions, it can maintain a stable fit gap and avoid the decrease in adjustment accuracy. Moreover, the dovetail groove 2311 has stronger structural rigidity than the rectangular groove. Its two inclined surfaces can evenly distribute the load transmitted by the sliding part 2331, which can reduce local stress concentration, reduce the risk of component deformation, adapt to tension control scenarios with frequent adjustment or load, extend the service life of the component and ensure long-term accuracy stability.

[0055] In this embodiment, the mounting bracket 10 has a second adjustment groove 12 communicating with the first adjustment groove 11. The adjustment rack 233 also includes an adjustment part 2333 disposed on the sliding part 2331. The adjustment part 2333 passes through the second adjustment groove 12, and the adjustment part 2333 has a limiting groove 2334. The locking component 22 is limited within the limiting groove 2334, so that the adjustment rack 233 can drive the locking component 22 to move within the first adjustment groove 11. The limiting groove 2334 limits the locking component 22, which facilitates assembly and disassembly.

[0056] Of course, in other embodiments, the adjusting rack 233 may also be connected to the locking assembly 22 by a thread or by a pin to facilitate the movement of the locking assembly 22, which is not limited here.

[0057] To improve the ease of adjustment, in some optional embodiments, the first adjustment component 23 further includes an adjustment wheel axle 234. The adjustment wheel axle 234 includes a rotating shaft 2341 and a rotating wheel 2342 connected to the rotating shaft 2341. The rotating shaft 2341 is coaxially connected to the adjustment gear 232. The rotating wheel 2342 can provide an operating fulcrum, amplify the rotational torque, make the operation of rotating the adjustment gear 232 more convenient, and reduce the intensity of manual operation.

[0058] In this embodiment, the fixed base 231 is provided with two mounting blocks 2313 spaced apart along the height direction, the adjusting gear 232 is located between the two mounting blocks 2313, the mounting block 2313 is provided with a mounting hole coaxial with the adjusting gear 232, the rotating shaft 2341 passes through the mounting hole and the adjusting gear 232, and is splinedly connected to the adjusting gear 232.

[0059] In some optional embodiments, the first adjustment component 23 further includes a locking member 235, which is threaded to the fixed seat 231 and is used to radially abut against the rotating shaft 2341. After the first adjustment component 23 completes the adjustment, it radially locks the adjustment wheel shaft 234, thereby locking the position of the support component 21 by the meshing of the adjustment gear 232 and the adjustment rack 233, and preventing the support component 21 from shifting as a whole.

[0060] In some optional embodiments, the first adjustment component 23 further includes a retaining ring 236. The end of the rotating shaft 2341 away from the rotating wheel 2342 is provided with a positioning groove. The retaining ring 236 can be engaged with the positioning groove to achieve axial positioning of the adjustment wheel shaft 234 and prevent the adjustment wheel shaft 234 from separating from the adjustment gear 232 and the fixed seat 231.

[0061] In some optional embodiments, the second adjusting component 24 includes an adjusting screw 241. The inner support 211 has a third adjusting groove 2111 and a threaded hole 2112 extending and communicating along a first direction. The locking component 22 passes through the third adjusting groove 2111. The adjusting screw 241 is threaded into the threaded hole 2112, and one end abuts against the locking component 22. By turning the adjusting screw 241 to abut against the locking component 22, it can react on the inner support 211, thereby driving the inner support 211 to move to one side relative to the locking component 22 along the first direction. Conversely, when the adjusting screw 241 is loosened to move away from the locking component 22, the inner support 211 can move to the other side along the first direction under its own gravity or external force, thereby achieving precise fine-tuning of the position of the inner support 211 and ensuring uniform tension distribution of the front and rear flat belts.

[0062] In addition, the adjusting screw 241 abuts against the locking assembly 22, which can fix the relative position of the locking assembly 22 and the inner support 211, so that the inner support 211 can be locked and fixed by the locking assembly 22, preventing the inner support 211 from being displaced during the locking process, which would lead to inaccurate tension adjustment. It also helps to prevent the inner support 211 from moving under force during long-term operation of the equipment, which is conducive to ensuring the long-term stability of the tension of the front flat belt.

[0063] To facilitate operation, the adjusting screw 241 is located on the outside of the front flat belt, providing space for operators to operate and adjust, and avoiding interference with the front flat belt during adjustment.

[0064] Furthermore, the second adjustment assembly 24 also includes an adjustment nut 242, which is threadedly engaged with the adjustment screw 241 to lock the adjustment screw 241 to the inner support 211 and prevent the adjustment screw 241 from loosening under the long-term vibration of the equipment.

[0065] like Figure 1 and Figure 2As shown, in some optional embodiments, the belt tensioning wheel adjustment device includes at least two adjustment mechanisms 20, which are respectively disposed at both ends of the mounting bracket 10, and can tension the upper and lower sets of flat belts respectively, adapting to the tensioning requirements of multiple sets of flat belts in the transition section of the vertical lifting section of the cigarette storage and conveying device.

[0066] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A belt tensioner adjustment device, characterized in that, The system includes a mounting bracket (10) and an adjustment mechanism (20), the adjustment mechanism (20) comprising: The support assembly (21) includes an inner support (211) and an outer support (212). The inner support (211) is located on the front side of the mounting bracket (10) and is used to install the front pulley (100). The outer support (212) is located on the rear side of the mounting bracket (10) and is used to install the rear pulley (200). The locking assembly (22) is adjustablely connected to the mounting bracket (10) along a first direction, and has a locked state that locks the support assembly (21) to the mounting bracket (10) and an unlocked state that releases the support assembly (21). In the unlocked state, the support assembly (21) can be moved along the first direction. The first adjustment component (23) is connected to the mounting bracket (10), and its output end is coupled to the locking component (22) for driving the locking component (22) to move along the first direction in the unlocked state; The second adjustment component (24) is connected to the locking component (22) in an adjustable position along the first direction. The second adjustment component (24) is coupled between the inner support (211) and the locking component (22) and is used to drive the inner support (211) to move relative to the locking component (22) along the first direction.

2. The belt tensioner adjusting device according to claim 1, characterized in that, The mounting bracket (10) has a first adjustment groove (11) extending along the first direction. The locking component (22) passes through the first adjustment groove (11) and its two ends are threadedly connected to the outer support (212) and the inner support (211) respectively.

3. The belt tensioner adjusting device according to claim 2, characterized in that, The first adjustment component (23) includes a fixed seat (231) and an adjustment gear (232) and an adjustment rack (233) that mesh with each other. The fixed seat (231) is mounted on the mounting bracket (10). The adjustment rack (233) is slidably connected to the fixed seat (231) along the first direction and is coupled to the locking component (22).

4. The belt tensioner adjusting device according to claim 3, characterized in that, The adjusting rack (233) includes a sliding part (2331) and a rack part (2332) disposed on the sliding part (2331). The fixed base (231) has a dovetail groove (2311) extending in a first direction and a clearance groove (2312) communicating with the dovetail groove (2311). The clearance groove (2312) is used to accommodate the rack part (2332). The sliding part (2331) is slidably engaged with the dovetail groove (2311). The rack part (2332) meshes with the adjusting gear (232).

5. The belt tensioner adjusting device according to claim 4, characterized in that, The mounting bracket (10) has a second adjustment groove (12) that communicates with the first adjustment groove (11). The adjustment rack (233) also includes an adjustment part (2333) disposed on the sliding part (2331). The adjustment part (2333) passes through the second adjustment groove (12) and the adjustment part (2333) has a limit groove (2334). The locking component (22) is limited to the limit groove (2334).

6. The belt tensioner adjusting device according to claim 3, characterized in that, The first adjustment component (23) further includes an adjustment wheel shaft (234), the adjustment wheel shaft (234) includes a rotating shaft (2341) and a rotating wheel (2342) connected to the rotating shaft (2341), the rotating shaft (2341) and the adjustment gear (232) are coaxially connected.

7. The belt tensioner adjusting device according to claim 6, characterized in that, The first adjusting assembly (23) further includes a locking member (235), which is threadedly connected to the fixed base (231) for radial contact with the rotating shaft (2341); and / or, The first adjustment component (23) also includes a retaining ring (236), and the end of the rotating shaft (2341) away from the rotating wheel (2342) is provided with a positioning groove, and the retaining ring (236) can be engaged in the positioning groove.

8. The belt tensioner adjusting device according to claim 1, characterized in that, The second adjustment component (24) includes an adjustment screw (241), and the inner support (211) is provided with a third adjustment groove (2111) and a threaded hole (2112) extending and communicating in the first direction. The locking component (22) passes through the third adjustment groove (2111), and the adjustment screw (241) is threaded into the threaded hole (2112), with one end abutting against the locking component (22).

9. The belt tensioner adjusting device according to claim 8, characterized in that, The second adjustment assembly (24) further includes an adjustment nut (242), which is threadedly engaged with the adjustment screw (241) to lock the adjustment screw (241) to the inner support (211).

10. The belt tensioner adjusting device according to any one of claims 1 to 9, characterized in that, The belt tensioner adjustment device includes at least two adjustment mechanisms (20), which are respectively disposed at both ends of the mounting bracket (10).

Images