Belt tensioning mechanism easy to maintain

Abstract

The utility model relates to the technical field of mechanical transmission, and discloses an easy maintenance type belt tensioning mechanism which comprises a bottom plate, the right side of the top end of the bottom plate is fixedly connected with a driving assembly used for transmission, the driving end of the driving assembly is fixedly connected with a driving wheel, and the driving wheel is sleeved with a belt. A supporting block is fixedly connected to the left side of the top end of the bottom plate, an inclined groove is formed in the front end of the exterior of the supporting block, a rotating rod is rotationally connected to the interior of the inclined groove, a driven wheel is fixedly connected to the exterior of the rotating rod, and a connecting block is fixedly connected to the front end of the exterior of the rotating rod. First transmission rods are rotationally connected to the left end and the right end of the interior of the connecting block correspondingly. According to the belt tensioning device, the tensioning force of the belt can be adjusted, so that high efficiency and stability of power transmission are guaranteed, the tensioning force of the belt can be adjusted, and tensioning of the other end of the belt can be canceled when the belt tensioning device is not used, so that the belt becomes loose and is convenient to detach and replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical drive technical field especially easy maintenance type belt tensioning mechanism. BACKGROUND

[0002] Mechanical transmission refers to a kind of transmission mode using mechanical mode to transmit power and movement, the power and movement of prime mover (such as motor, internal combustion engine etc.) are transmitted to working machine (such as machine tool, crane, automobile etc.) by various mechanical elements such as gear, chain, belt, shaft, coupling etc., to realize the predetermined action and function of working machine, belt has certain elasticity and flexibility, can absorb and buffer vibration in transmission process, make transmission more stable, reduce impact and noise, this can effectively improve the working precision and comfort of equipment for some equipment with higher transmission stability requirement, such as precision machine tool.

[0003] In transmission, belt is tightly sleeved on driving wheel and driven wheel, when driving wheel rotates, belt is moved by the friction force between belt and pulley, and driven wheel is rotated by the friction force of belt, so as to realize power transmission.

[0004] In prior art, belt is continuously rubbed with pulley in long-term use process, the rubber on its surface can be gradually worn, when wear reaches certain degree, the thickness of belt is thinned, strength is reduced, fatigue crack or even fracture is prone to appear, it needs to be regularly disassembled and replaced, in the process of disassembling old belt and installing new belt, some tools are needed to pry, stretch and other operations, if operation is improper, hand injury and other accidents are prone to occur, for this, easy maintenance type belt tensioning mechanism is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides easy maintenance type belt tensioning mechanism, aims at improving the problem that belt is manually replaced by using tools in existing technology, improper operation is prone to cause hand injury and other accidents when regularly replaced.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a maintainable belt tensioning mechanism, including the bottom plate, the right side fixedly connected with drive assembly for transmission of bottom plate top, the drive end fixedly connected with driving wheel of drive assembly, the outside of driving wheel is equipped with the belt, the left side fixedly connected with support block of bottom plate top, the outside front end of support block is equipped with the inclined slot, the inside rotatory connection has the rotating rod of inclined slot, the outside fixedly connected with driven wheel of rotating rod, the outside fixedly connected with the link block of rotating rod front end, the inside rotatory connection has transmission link no.

[0008] As a further description of the above technical solutions:

[0009] The drive assembly comprises a heightening block, the bottom end of the heightening block is fixedly connected to the top right side of the bottom plate, the top end of the heightening block is fixedly connected with a motor one, and the driving end of the motor one is fixedly connected to the inside of the driving wheel.

[0010] As a further description of the above technical solutions:

[0011] The top end of the support block is fixedly connected with a containing block, the inside left end of the containing block is fixedly connected with a motor two, the driving end of the motor two is fixedly connected with a transmission block, the other end of the transmission block on the front side is rotatably connected with a connecting rod, the inside right end of the containing block is fixedly connected with a supporting rod, the outside of the supporting rod is rotatably connected with a driven rod, and the inside bottom end of the containing block is provided with a sliding groove.

[0012] As a further description of the above technical solutions:

[0013] The other end of the belt is sleeved on the outside of the driven wheel, and the bottom end of the connecting block is fixedly connected to the top end of the bottom plate.

[0014] As a further description of the above technical solutions:

[0015] The outside of the guiding rod is slidably connected to the inside of the connecting block, and the other end of the transmission rod two is rotatably connected to the front right end of the link block.

[0016] As a further description of the above technical solutions:

[0017] The outside of the transmission block is rotatably connected to the inside of the containing block, and the outside of the connecting rod is rotatably connected to the inside of the containing block.

[0018] As a further description of the above technical solutions:

[0019] The outer rotating connection of the driven rod is connected in the interior of the accommodating block, and the outer sliding connection of the driven rod is connected in the interior of the sliding groove;

[0020] As further description of the above technical solution:

[0021] The bottom end of the driven rod is fixedly connected with a scraper, and the bottom end of the scraper is fixedly connected with a plurality of brushes.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1. In the utility model, the transmission rod two is driven to rotate by the electric push rod, and then the transmission rod one is driven to rotate, and then the driven wheel is driven to slide, so that the adjustment of the belt tensioning force can be realized, thereby ensuring the efficiency and stability of power transmission.

[0024] 2. In the utility model, the connecting rod is driven to rotate by the motor two, and then the driven rod is driven to slide in the sliding groove, and then the reciprocating contact of the brush with the belt is realized, and the reciprocating contact of the brush with the belt can effectively remove the dust, oil stains and other impurities adsorbed by the belt during long-term operation, so that the belt surface can be kept clean and the abrasion can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model provides a three-dimensional schematic view of the easy-maintenance type belt tensioning mechanism;

[0026] Figure 2 The utility model provides a support block structure schematic view of the easy-maintenance type belt tensioning mechanism;

[0027] Figure 3 For Figure 2 The enlarged view of A in the figure;

[0028] Figure 4 For Figure 2 The enlarged view of B in the figure.

[0029] LEGEND:

[0030] 1, bottom plate; 2, pad block; 3, motor one; 4, driving wheel; 5, belt; 6, support block; 7, inclined slot; 8, rotating rod; 9, driven wheel; 10, link block; 11, transmission rod one; 12, connecting block; 13, electric push rod; 14, guide rod; 15, driven block; 16, transmission rod two; 17, containing block; 18, motor two; 19, transmission block; 20, connecting rod; 21, support rod; 22, driven rod; 23, sliding groove; 24, scraper; 25, brush. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] Referring to Figures 1 to 3 An embodiment provided by the utility model: easy maintenance type belt tensioning mechanism, including bottom plate 1, bottom plate 1 is the basic support component of the whole mechanism, provides stable and reliable installation platform for the components connected above, the right side of the top end of bottom plate 1 is fixedly connected with the drive assembly for transmission, the drive assembly includes pad block 2, pad block 2 improves the installation height of motor one 3, makes it be in more reasonable position in the whole transmission layout, is helpful to optimize power transmission path, the bottom end of pad block 2 is fixedly connected at the top right side of bottom plate 1, the top end of pad block 2 is fixedly connected with motor one 3, the drive end of motor one 3 is fixedly connected in the inside of driving wheel 4, motor one 3 is core power source, can provide continuous rotating power for driving wheel 4, drives belt 5 to carry out circular motion, and its output power, rotating speed and other performance parameters can be reasonably selected and adjusted according to the specific belt transmission demand, to adapt to the working requirement under different working conditions, guarantees the efficient operation of whole belt transmission;

[0033] The driving end of the driving assembly is fixedly connected with a driving wheel 4, the outside of the driving wheel 4 is sleeved with a belt 5, the top left side of the bottom plate 1 is fixedly connected with a supporting block 6, the outside front end of the supporting block 6 is provided with an inclined slot 7, the unique inclined design of the inclined slot 7 provides a specific motion trajectory and space constraint for the rotation and sliding of the rotating rod 8, so that the rotating rod 8 can move according to the predetermined path when subjected to the force of the related transmission components, thereby driving the driven wheel 9 to realize the adjustment of the position, and further changing the tension of the belt 5, the inside of the inclined slot 7 is rotatably connected with the rotating rod 8, the rotating rod 8 can effectively convert the rotating motion of the connecting block 10 into the rotation and position change of the driven wheel 9, the outside of the rotating rod 8 is fixedly connected with the driven wheel 9, the driven wheel 9 cooperates with the driving wheel 4 to realize the circulating transmission of the belt 5, the diameter of the driven wheel 9 is matched with the diameter of the driving wheel 4, by adjusting the diameter ratio of the two, different transmission ratios can be realized to meet the needs of different rotating speeds and torque outputs of various equipment;

[0034] The other end of the belt 5 is sleeved on the outside of the driven wheel 9, the outside front end of the rotating rod 8 is fixedly connected with the connecting block 10, the connecting block 10 can transmit the motion of the rotating rod 8 to the transmission rod one 11, the left and right ends of the inside of the connecting block 10 are rotatably connected with the transmission rod one 11, the other end of the transmission rod one 11 is rotatably connected with the connecting block 12, the connecting block 12 is a receiving component of the transmission rod one 11, which is slidably connected with the guide rod 14 and fixedly connected with the bottom plate 1, so that it can slide smoothly along the guide rod 14 under the drive of the electric push rod 13, and the sliding motion is transmitted back to the connecting block 10 through the transmission rod one 11, thereby affecting the state of the rotating rod 8 and the driven wheel 9, realizing the accurate adjustment of the tension of the belt 5, the bottom end of the connecting block 12 is fixedly connected to the top end of the bottom plate 1, the top left side of the bottom plate 1 is fixedly connected with the electric push rod 13, the driving end of the electric push rod 13 is fixedly connected with the guide rod 14, the electric push rod 13 is the power source for adjusting the tension of the belt 5, the outside of the guide rod 14 is slidably connected in the inside of the connecting block 12, the guide rod 14 provides guidance and constraint for the sliding motion of the connecting block 12, ensuring that the connecting block 12 can only slide linearly along the direction of the guide rod 14 under the drive of the electric push rod 13, avoiding the problems of uneven force on the transmission components and jamming due to deviation of the sliding direction, improving the stability and reliability of the transmission, the driving end of the electric push rod 13 is fixedly connected to the outside left end of the guide rod 14, the outside of the guide rod 14 is fixedly connected with the driven block 15, the driven block 15 moves synchronously with the guide rod 14, its main function is to convert the linear motion of the guide rod 14 into the rotary motion of the transmission rod two 16, the outside front end of the driven block 15 is rotatably connected with the transmission rod two 16, the other end of the transmission rod two 16 is rotatably connected to the front right end of the connecting block 10.

[0035] Referring to Figure 1 , Figure 2、 Figure 4 The top end of the supporting block 6 is fixedly connected with a containing block 17, the containing block 17 provides a stable installation space for components such as the second motor 18, the transmission block 19, the connecting rod 20 and the driven rod 22, the left end of the inside of the containing block 17 is fixedly connected with the second motor 18, the second motor 18 is a power source for driving cleaning components, the driving end of the second motor 18 is fixedly connected with the transmission block 19, the transmission block 19 is a power transmission intermediate body between the second motor 18 and the connecting rod 20, the outside of the transmission block 19 is rotatably connected in the inside of the containing block 17, the front side of the other end of the transmission block 19 is rotatably connected with the connecting rod 20, the outside of the connecting rod 20 is rotatably connected in the inside of the containing block 17, the right end of the inside of the containing block 17 is fixedly connected with a supporting rod 21, the supporting rod 21 provides a stable fulcrum for the rotation of the driven rod 22, so that the driven rod 22 can flexibly rotate around the supporting rod 21, the outside of the supporting rod 21 is rotatably connected with the driven rod 22, the driven rod 22 is a key component for connecting the scraper 24, the brush 25 and the connecting rod 20 and the supporting rod 21, and its movement state directly determines the contact condition of the scraper 24 and the brush 25 with the belt 5, under the pushing of the connecting rod 20, the driven rod 22 can rotate around the supporting rod 21 and slide in the sliding groove 23, and the force transmitted by the connecting rod 20 is converted into the reciprocating motion of the scraper 24 and the brush 25;

[0036] The outside of the driven rod 22 is rotatably connected in the inside of the containing block 17, the bottom end of the inside of the containing block 17 is provided with a sliding groove 23, the sliding groove 23 provides guidance and constraint for the sliding motion of the driven rod 22, the outside of the driven rod 22 is slidably connected in the inside of the sliding groove 23, the bottom end of the driven rod 22 is fixedly connected with the scraper 24, the main role of the scraper 24 is to scrape and clean larger particle impurities and dirt on the surface of the belt 5 under the driving of the driven rod 22, the bottom end of the scraper 24 is fixedly connected with a plurality of brushes 25, the brushes 25 can penetrate into the texture and gap of the belt 5 to clean small dust and fiber impurities on the surface of the belt 5, the outside of the brush 25 is in contact with the outside of the belt 5.

[0037] Working principle: first, start the motor 3 to begin operation and drive the driving wheel 4 to rotate, the rotation of the driving wheel 4 makes the belt 5 circulate, at the same time, the electric push rod 13 performs the telescopic action, the electric push rod 13 pushes the guide rod 14 to move left or right, the movement of the guide rod 14 drives the connecting block 12 to slide along its own direction, the sliding of the connecting block 12 causes the transmission rod 11 to rotate around the connecting point with the link block 10, the rotation of the transmission rod 11 drives the link block 10 to rotate around the rotating rod 8 as the shaft, the rotation of the link block 10 makes the rotating rod 8 rotate and slide in the inclined slot 7, the rotation of the rotating rod 8 drives the driven wheel 9 to rotate, thereby adjusting the tension of the belt 5.

[0038] Then the motor 18 is started and drives the transmission block 19 to rotate, the rotation of the transmission block 19 pulls the connecting rod 20 to rotate, the rotation of the connecting rod 20 drives the driven rod 22 to rotate around the support rod 21 and slide in the sliding groove 23, the sliding of the driven rod 22 drives the scraper 24 and the brush 25 to move up and down, the brush 25 contacts with the belt 5 in the moving process, and the belt 5 is cleaned to remove the dust and impurities on the surface of the belt 5, so that the good running state of the belt 5 is ensured and the stability and reliability of the whole belt 5 transmission are further maintained.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application have, 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 still can 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. Belt tensioning mechanism of the easy maintenance type, comprising a base plate (1), characterized in that: The bottom plate (1) top right side is fixedly connected with the drive assembly for transmission, the drive end of the drive assembly is fixedly connected with the driving wheel (4), the outside of the driving wheel (4) is provided with the belt (5), the top left side of the bottom plate (1) is fixedly connected with the support block (6), the outside of the support block (6) is provided with the inclined slot (7), the inside of the inclined slot (7) is rotatably connected with the rotating rod (8), the outside of the rotating rod (8) is fixedly connected with the driven wheel (9), the outside of the rotating rod (8) is fixedly connected with the adapter block (10), the inside of the adapter block (10) is rotatably connected with the transmission rod one (11), the other end of the transmission rod one (11) is rotatably connected with the connecting block (12), the top left side of the bottom plate (1) is fixedly connected with the electric push rod (13), the drive end of the electric push rod (13) is fixedly connected with the guide rod (14), the outside of the guide rod (14) is fixedly connected with the driven block (15), the outside of the driven block (15) is rotatably connected with the transmission rod two (16).

2. The easily maintained belt tensioning mechanism of claim 1, wherein: The drive assembly includes the cushioning block (2), the bottom end of the cushioning block (2) is fixedly connected to the top right side of the bottom plate (1), the top end of the cushioning block (2) is fixedly connected with the motor one (3), and the drive end of the motor one (3) is fixedly connected to the inside of the driving wheel (4).

3. The easily maintained belt tensioner of claim 1, wherein: The top end of the support block (6) is fixedly connected with the containing block (17), the inside left end of the containing block (17) is fixedly connected with the motor two (18), the drive end of the motor two (18) is fixedly connected with the transmission block (19), the other end of the front side of the transmission block (19) is rotatably connected with the connecting rod (20), the inside right end of the containing block (17) is fixedly connected with the support rod (21), the outside of the support rod (21) is rotatably connected with the driven rod (22), and the inside bottom end of the containing block (17) is provided with the sliding groove (23).

4. The easily maintained belt tensioner of claim 1, wherein: The other end of the belt (5) is sleeved on the outside of the driven wheel (9), and the bottom end of the connecting block (12) is fixedly connected to the top end of the bottom plate (1).

5. The easily maintained belt tensioner of claim 1, wherein: The outside of the guide rod (14) is slidably connected in the inside of the connecting block (12), and the other end of the transmission rod two (16) is rotatably connected to the front right end of the adapter block (10).

6. The easily maintained belt tensioner of claim 3, wherein: The outside of the transmission block (19) is rotatably connected in the inside of the containing block (17), and the outside of the connecting rod (20) is rotatably connected in the inside of the containing block (17).

7. The easily maintained belt tensioner of claim 3, wherein: The outside of the driven rod (22) is rotatably connected in the inside of the containing block (17), and the outside of the driven rod (22) is slidably connected in the inside of the sliding groove (23).

8. The easily maintained belt tensioner of claim 3, wherein: The bottom end of the driven rod (22) is fixedly connected with the scraper (24), the bottom end of the scraper (24) is fixedly connected with a plurality of brushes (25), and the outside of the brush (25) is in contact with the outside of the belt (5).

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