Elastic tensioning device of rotary trash remover

Abstract

The utility model relates to the technical field of rotary trash-cleaning machines, in particular to an elastic tensioning device of a rotary trash-cleaning machine, which comprises a cross-shaped track and three tensioning wheels, a transverse track and a vertical track which are vertically communicated with each other are arranged on the cross-shaped track, two transverse sliding blocks are symmetrically arranged on the transverse track in a guiding and sliding fit mode, and the three tensioning wheels are arranged on the cross-shaped track. Vertical sliding blocks with the vertical length larger than the width of the transverse rails are arranged on the vertical rails in a guiding and sliding fit mode, the two sides of the two transverse sliding blocks are connected with the two sides of the transverse rails through elastic mechanisms, adjusting mechanisms for adjusting the vertical positions of the vertical sliding blocks in the vertical rails are arranged in the vertical rails, and connecting rods are hinged between the vertical sliding blocks and the transverse sliding blocks on the two sides. According to the utility model, the device is compact, the size of a wrap angle is not changed in the adjusting process, and the transmission stability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary trash cleaner technology field, concretely is a kind of elastic tensioner of rotary trash cleaner. BACKGROUND

[0002] Rotary trash cleaner is a kind of continuous trash cleaning equipment integrating trash rack and trash cleaner, mainly used for intercepting and cleaning various shapes and sizes of impurities in fluid, such as floating matter, suspended matter and the like, to ensure the normal operation of subsequent water treatment process. It is widely used in municipal wastewater treatment, tap water industry, power plant water inlet and wastewater treatment of textile, food processing, papermaking, leather and other industries, and its working principle is based on its unique rake chain structure. Under the drive of motor reducer, the rake chain rotates in the opposite direction of water flow, separates and carries the solid suspended matter in water to the upper part of the equipment. The electric reducer and the rake chain are connected by chain wheel and chain transmission. In order to improve the stability of the chain, an elastic tensioner is generally used to tension the chain and improve its transmission stability. However, the existing elastic tensioner of rotary trash cleaner generally uses a tensioning wheel to pull the chain outward, and a tensioning spring is used to pull the tensioning wheel outward. However, this method may affect the engagement arc of the chain and the chain wheels at both ends, thereby affecting the transmission effect, especially for rotary trash cleaner which consumes a lot of energy. At the same time, the chain needs to have enough tensioning space when being pulled outward, so the overall structure is not compact enough. Therefore, a compact elastic tensioner of rotary trash cleaner is designed, which does not change the wrap angle during adjustment and ensures the transmission stability. SUMMARY

[0003] (I) Technical problem solved

[0004] In view of the shortcomings of the prior art, the utility model provides an elastic tensioner of rotary trash cleaner, which is compact and does not change the wrap angle during adjustment, ensuring the transmission stability.

[0005] (II) Technical scheme

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an elastic tensioner of rotary trash cleaner, comprising a cross rail and three tensioning wheels, the cross rail is provided with a horizontal rail and a vertical rail which are perpendicular to each other, the horizontal rail is symmetrically guided and slidably connected with two horizontal sliding blocks, the vertical rail is guided and slidably connected with a vertical sliding block whose vertical length is greater than the width of the horizontal rail, the two sides of the two horizontal sliding blocks are connected with the two sides of the horizontal rail through elastic mechanisms, the vertical rail is provided with an adjusting mechanism for adjusting the vertical position of the vertical sliding block in the vertical rail, the vertical sliding block and the horizontal sliding blocks on both sides are hingedly connected with a connecting rod, and the three tensioning wheels are respectively rotatably connected with the vertical sliding block and the two horizontal sliding blocks.

[0007] Preferably, rotating shafts are rotatably connected to the vertical sliding block and the two horizontal sliding blocks, the tensioning wheels are detachably connected to the rotating shafts through flanges, and the two ends of the connecting rod are rotatably connected to the rotating shafts on the vertical sliding block and the horizontal sliding block.

[0008] Preferably, the adjusting mechanism comprises a screw rod rotatably connected to the vertical rail, the vertical sliding block is threadedly connected to the screw rod, and one end of the vertical rail is fixedly provided with a driving motor for driving the screw rod to rotate in forward and reverse directions.

[0009] Preferably, the elastic mechanism comprises a compression spring, and the horizontal sliding block is provided with an embedded groove on one side facing the end of the vertical rail, and the two ends of the compression spring are fixedly connected to the inner end wall of the vertical rail and the inner wall of the embedded groove.

[0010] Preferably, the horizontal rail is provided with a limiting groove on each side for guiding and sliding cooperation with the horizontal sliding block.

[0011] Preferably, a plurality of positioning blocks are fixedly installed on the cross rail.

[0012] (Three) beneficial effects

[0013] Compared with the prior art, the utility model provides a rotary trash cleaner elastic tensioning device, has the following beneficial effects:

[0014] The rotary trash cleaner elastic tensioning device, through three tensioning wheels, the tensioning wheels on both sides and the tensioning wheel at the middle position are arranged on both sides of the chain, and the tensioning wheel at the middle position is pulled to the other side of the two tensioning wheels, so that the chain can be wound around the three tensioning wheels, thereby tensioning the tensioning strip, through the arrangement of the elastic mechanism on both sides and the two connecting rods, the overall elasticity is improved, the tensioning force is prevented from being too large, and the stability of transmission is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the overall structure schematic view of the utility model without tensioning wheel;

[0017] Figure 3 It is the overall structure schematic view of the utility model from other perspectives;

[0018] Figure 4 It is the structure schematic view of the utility model tensioning wheel and connecting rod cooperation.

[0019] Marked in the drawing: 1, cross rail; 2, vertical slider; 3, horizontal slider; 4, rotating shaft; 5, connecting rod; 6, flange; 7, tensioning wheel; 8, compression spring; 9, limiting groove; 10, screw rod; 11, driving motor; 12, positioning block. DETAILED DESCRIPTION

[0020] 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 scope of protection of the utility model.

[0021] Embodiment:

[0022] Please refer to Figures 1-4 A rotary trash cleaner elastic tensioning device, comprising a cross rail 1 and three tensioning wheels 7, the cross rail 1 is provided with a horizontal rail and a vertical rail penetrating each other, the horizontal rail is symmetrically guided and slidably fitted with two horizontal sliders 3, the vertical rail is guided and slidably fitted with a vertical slider 2 with a vertical length greater than the width of the horizontal rail, the two sides of the two horizontal sliders 3 are connected to the two sides of the horizontal rail through elastic mechanisms, the vertical rail is provided with an adjusting mechanism for adjusting the vertical position of the vertical slider 2 in the vertical rail, the vertical slider 2 and the two horizontal sliders 3 are hinged with a connecting rod 5, and the three tensioning wheels 7 are respectively rotatably connected to the vertical slider 2 and the two horizontal sliders 3.

[0023] Specifically, the vertical slider 2 and the two horizontal sliders 3 are rotatably connected with rotating shafts 4, the tensioning wheels 7 are detachably connected to the rotating shafts 4 through flanges 6, and the two ends of the connecting rod 5 are rotatably connected with the rotating shafts 4 on the vertical slider 2 and the rotating shafts 4 on the horizontal sliders 3, so that the tensioning wheels 7 can be conveniently disassembled and replaced, and the later maintenance is facilitated.

[0024] Specifically, the adjusting mechanism comprises a screw rod 10 rotatably connected to the vertical rail, the vertical slider 2 is threadedly connected with the screw rod 10, one end of the vertical rail is fixedly installed with a driving motor 11 for driving the screw rod 10 to rotate forward and backward, and further, the driving motor 11 is a forward and reverse motor, the driving motor 11 is started, the output shaft of the driving motor 11 rotates clockwise or counterclockwise, so that the screw rod 10 can be driven to rotate clockwise or counterclockwise, and the vertical slider 2 can be driven to move downward or upward in the vertical rail.

[0025] Specific, the elastic mechanism includes compression spring 8, the horizontal slider 3 is provided with an embedded groove on one side towards the vertical rail end, the two ends of the compression spring 8 are fixedly connected with the inner end wall of the vertical rail and the inner wall of the embedded groove, through the setting of the compression spring 8, the elastic sliding of the horizontal slider 3 in the cross rail 1 is ensured.

[0026] Specific, the two sides of the horizontal rail are respectively provided with a limiting groove 9 matched with the horizontal slider 3 for guiding sliding, through the setting of the limiting groove 9, the sliding cooperation of the horizontal slider 3 is limited, and the sliding guiding stability of the horizontal slider 3 is ensured.

[0027] Specific, a plurality of positioning blocks 12 are fixedly installed on the cross rail 1, further, the positioning holes are formed in the positioning blocks 12, through the positioning holes, the cross rail 1 is conveniently installed on the rack of the rotary trash cleaner.

[0028] In use, the vertical slider 2 is moved to one side of the vertical rail and avoids the horizontal rail, then the tensioning wheel 7 installed on the vertical slider 2 is brought into contact with the two tensioning wheels 7 separately arranged on the horizontal slider 3 from the two sides of the chain, then the cross rail 1 is installed on the rack of the rotary trash cleaner, then the vertical slider 2 is driven by the adjusting mechanism to move along the vertical rail to the side of the line connecting the two horizontal sliders 3 and then continues to move to the other side of the line connecting the two horizontal sliders 3, the chain is compressed by the three tensioning wheels 7, and the two connecting rods 5 and the two elastic mechanisms are used, so that the two horizontal sliders 3 are fed to the middle, thereby the elastic tensioning is ensured, and the influence of the normal operation of the rotary trash cleaner caused by the excessive tension is avoided.

[0029] It should be noted that the "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like mentioned in the specification represent that the described embodiment can include a specific feature, structure or characteristic, but not necessarily every embodiment includes the specific feature, structure or characteristic. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in connection with other embodiments described explicitly or implicitly.

[0030] It should be easily understood that "on", "above" and "over" in the present disclosure should be interpreted in the broadest way, so that "on" not only means "directly on", but also includes the meaning of "on" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over", but also can include the meaning of "above" or "over" without intermediate features or layers therebetween (i.e. directly on).

[0031] In addition, spatially relative terms, such as "under", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0032] Note that, in the present document, the terms "first", "second", and the like, merely identify content distinctions, but do not necessarily require or imply any actual relationship or order between the entities or actions so identified. Also, the terms "comprises", "comprising", 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 does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0033] Finally, it should be noted that the above-described embodiments are merely intended for describing and illustrating, but not limiting, the technical solutions of the present application; even though the present application has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or equivalently replace some or all of the technical features thereof; and such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A rotary cleaner elastic tensioning device, characterized in that: The utility model relates to a cross rail (1) and three tension pulleys (7), the cross rail (1) is provided with the cross rail and vertical rail that pass through each other perpendicularly, two horizontal sliding blocks (3) are symmetrically guided and slid on the cross rail, the vertical rail is guided and slid with vertical sliding block (2) of vertical length greater than the width of cross rail, the two sides of two horizontal sliding blocks (3) are connected with the two sides of cross rail through elastic mechanism, the vertical rail is provided with the adjusting mechanism that adjusts the vertical position of vertical sliding block (2) in vertical rail, connecting rod (5) is hinged between vertical sliding block (2) and the horizontal sliding block (3) of two sides, three tension pulleys (7) are rotatably connected on vertical sliding block (2) and two horizontal sliding blocks (3) respectively.

2. The rotary cleaner elastic tensioning device according to claim 1, characterized in that: Rotatable connecting shaft (4) is rotatably connected on vertical sliding block (2) and two horizontal sliding blocks (3) respectively, the tension pulley (7) is detachably connected on connecting shaft (4) through flange (6), and both ends of connecting rod (5) are rotatably connected with connecting shaft (4) on vertical sliding block (2) and connecting shaft (4) on horizontal sliding block (3) respectively.

3. The rotary cleaner resilient tensioning device of claim 2 wherein: The adjusting mechanism includes screw rod (10) rotatably connected on vertical rail, vertical sliding block (2) is threadedly connected with screw rod (10), and one end of vertical rail is fixedly installed with driving motor (11) for driving screw rod (10) to rotate in positive and negative directions.

4. The rotary cleaner resilient tensioning device of claim 3 wherein: The elastic mechanism includes compression spring (8), one side of horizontal sliding block (3) towards the end of vertical rail is provided with embedded groove, and both ends of compression spring (8) are fixedly connected with the inner wall of vertical rail and the inner wall of embedded groove.

5. A rotary cleaner resilient tensioning device as claimed in claim 4 wherein: The both sides of cross rail are provided with limiting groove (9) for guiding and sliding with horizontal sliding block (3) respectively.

6. A rotary cleaner resilient tensioning device according to claim 5 wherein: A plurality of positioning blocks (12) are fixedly installed on the cross rail (1).

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