Synchronous belt transmission tensioning mechanism and tensioning support thereof

Abstract

The utility model discloses a synchronous belt transmission tensioning mechanism and a tensioning support thereof, the tensioning support comprises a fixed support and a movable support, the fixed support comprises a fixed main body, a first connecting part and a second connecting part, and the first connecting part and the second connecting part are connected to the fixed main body; the movable support comprises a movable body, a third connecting part and a fourth connecting part, wherein the third connecting part and the fourth connecting part are connected to the two sides of the movable body. Wherein the first connecting part and the third connecting part are connected in a rotating mode to form a rotating shaft, the second connecting part and the fourth connecting part are connected through a support height adjusting piece, and the position of the fourth connecting part is adjusted on the support height adjusting piece so as to drive the movable support to rotate around the rotating shaft. According to the synchronous belt transmission tensioning mechanism and the tensioning support of the synchronous belt transmission tensioning mechanism, online tensioning adjustment of the synchronous belt is achieved, the structure is compact, the needed adjusting space is small, the structure is simple, cost is low, the adjustable range is large, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission, in particular to a tensioning support and a synchronous belt transmission tensioning mechanism comprising the tensioning support. Background Art

[0002] Synchronous belt transmission is a kind of belt transmission method. Since the belt and the pulley transmit motion and power through meshing, there is no relative sliding between the synchronous belt and the pulley, which can ensure an accurate transmission ratio. Synchronous belts usually use steel wire rope or glass fiber rope as tensile body and chloroprene rubber or polyurethane as matrix. This kind of belt is thin and light, so it can be used for higher speed. The linear speed during transmission can reach 50m / s, the transmission ratio can reach 10, and the efficiency can reach 98%. The transmission noise is smaller than that of belt drive, chain drive and gear drive, and it has good wear resistance, does not require oil lubrication, and has a longer service life than friction belts. Synchronous belts are widely used in medium and small power transmissions that require accurate transmission ratios. However, its main disadvantage is that the manufacturing and installation precision requirements are high, and the center distance requirements are strict.

[0003] Under long-term use, the synchronous belt often becomes loose, resulting in transmission errors, causing the synchronous belt to be on the tooth profile surface of the synchronous wheel tooth groove. Multiple accumulation of errors will cause the belt teeth to climb onto the top circle of the synchronous wheel and slide and jump teeth, causing tooth climbing, affecting transmission accuracy and transmission efficiency. Due to structural limitations, it is difficult to add a synchronous belt tensioner. Previous technologies usually adjust the tension of the synchronous belt by adjusting the motor position left and right and increasing the center distance of the synchronous belt pulley. This method not only requires a large adjustment space, but also a small adjustable range of the synchronous belt, which has very large limitations when implemented on-site in compact units. Utility Model Content

[0004] The utility model aims to provide a synchronous belt transmission tensioning mechanism and a tensioning support thereof, which can effectively and quickly tension the synchronous belt, improve the meshing accuracy between the synchronous belt and the synchronous belt wheel, and improve the transmission efficiency.

[0005] In order to achieve the above-mentioned purpose, the tensioning support of the utility model includes a fixed bracket and a movable bracket, wherein the fixed bracket includes a fixed body and a first connecting part and a second connecting part connected to the fixed body, and the movable bracket includes a movable body and a third connecting part and a fourth connecting part connected to both sides of the movable body. The first connecting part is rotatably connected with the third connecting part to form a rotating shaft, the second connecting part is connected with the fourth connecting part through a bracket height adjustment member, and the fourth connecting part adjusts its position on the bracket height adjustment member to drive the movable bracket to rotate around the rotating shaft.

[0006] In one embodiment of the above-mentioned tensioning support, the first connecting portion and the second connecting portion are vertically arranged on the upper surface of the fixing body.

[0007] In one embodiment of the above-mentioned tensioning support, the rotation axis extends in a horizontal direction, and the movable bracket rotates around the rotation axis in a vertical plane.

[0008] In one embodiment of the above-mentioned tensioning support, the bracket height adjustment member includes a movable bolt.

[0009] In one embodiment of the above-mentioned tensioning support, the articulated bolt includes a rotating portion and a threaded portion, the rotating portion is rotatably connected to the second connecting portion, and the fourth connecting portion is connected to the threaded portion and can move up and down along the threaded portion.

[0010] In one embodiment of the above-mentioned tensioning support, the bracket height adjustment member further includes an upper locking nut and a lower locking nut matched with the threaded portion, and the fourth connecting portion is sandwiched between the upper locking nut and the lower locking nut.

[0011] In one embodiment of the above-mentioned tensioning support, the moving body includes a first side surface, and the third connecting portion is connected to the bottom of the first side surface.

[0012] In one embodiment of the above-mentioned tensioning support, the movable body includes a second side surface arranged opposite to the first side surface, and the fourth connecting portion is connected to the top of the second side surface.

[0013] The synchronous belt transmission tensioning mechanism of the utility model comprises a driving member, a working member and a synchronous belt, wherein the synchronous belt transmission connects the driving member and the working member, and further comprises the above-mentioned tensioning support, wherein the driving member is connected to the moving body.

[0014] In one embodiment of the above-mentioned synchronous belt transmission tensioning mechanism, the moving body includes an upper connecting surface, and the driving member is connected to the upper connecting surface.

[0015] The utility model has the beneficial effect that the synchronous belt transmission tensioning mechanism and its tensioning support of the utility model realize online tensioning adjustment of the synchronous belt, have a compact structure, require a small adjustment space, and have a large adjustment range. The utility model does not require disassembly of equipment, can be adjusted directly, has a simple structure, is low in cost, and has a wide range of applications.

[0016] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of an embodiment of the tensioning support of the utility model;

[0018] Figure 2 for Figure 1 A top view of

[0019] Figure 3 This is an adjustment state diagram of the tension support of the utility model;

[0020] Figure 4 Another adjustment state diagram of the tension support of the utility model;

[0021] Figure 5 for Figure 1 Exploded diagram of

[0022] Figure 6 It is a front view of an embodiment of the synchronous belt transmission tensioning mechanism of the utility model;

[0023] Figure 7 This is a working state diagram of the synchronous belt transmission tensioning mechanism of the utility model;

[0024] Figure 8 Another working state diagram of the synchronous belt transmission tensioning mechanism of the utility model;

[0025] Fig. 9 for Figure 6 Side view of

[0026] Fig.10 The utility model is a structural schematic diagram of a synchronous belt transmission tensioning mechanism applied to an electro-tinning unit.

[0027] Among them, the reference numerals

[0028] 1: Synchronous belt drive tensioning mechanism

[0029] 10: Tension support

[0030] 100: Fixed bracket

[0031] 110: Fixed subject

[0032] 120: First connection part

[0033] 130: Second connection part

[0034] 200: Mobile stand

[0035] 210: Moving Subject

[0036] 211: First side

[0037] 212: Second side

[0038] 213: Upper connection surface

[0039] 220: Third connection

[0040] 230: Fourth connection

[0041] 300: Bracket height adjustment

[0042] 310: Swing bolt

[0043] 311: Rotating part

[0044] 312: Threaded part

[0045] 320: Upper locking nut

[0046] 330: Lower locking nut

[0047] 20: Driving parts

[0048] 30: Working parts

[0049] 40: Timing belt DETAILED DESCRIPTION

[0050] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the utility model, but it is not intended to limit the scope of protection of the claims attached to the utility model.

[0051] References in the specification to "an embodiment", "another embodiment", "this embodiment", etc., mean that the described embodiment may include specific features, structures or characteristics, but not every embodiment must include these specific features, structures or characteristics. In addition, such expressions do not refer to the same embodiment. Further, when describing specific features, structures or characteristics in conjunction with an embodiment, whether or not there is an explicit description, it has been shown that it is within the knowledge of those skilled in the art to combine such features, structures or characteristics into other embodiments.

[0052] Certain words are used in the specification and subsequent claims to refer to specific components or parts. It should be understood by those of ordinary skill in the art that technical users or manufacturers may refer to the same component or part by different nouns or terms. This specification and subsequent claims do not use differences in names as a way to distinguish components or parts, but rather use differences in functions of components or parts as the criteria for distinction. The words "include" and "comprising" mentioned throughout the specification and subsequent claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the word "connected" herein includes any direct and indirect means of connection.

[0053] It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. For the sake of clarity, the order terms "first", "second", "third", "fourth" and the like mentioned herein are used to distinguish an element, region, or part from another identical or similar element, region, or part, rather than to limit a specific element, region, or part.

[0054] like Figure 1 and Figure 2 As shown, the tension support 10 of the utility model includes a fixed bracket 100 and a movable bracket 200, wherein the fixed bracket 100 includes a fixed body 110, a first connecting portion 120 and a second connecting portion 130, and the first connecting portion 120 and the second connecting portion 130 are connected to the fixed body 110. The movable bracket 200 includes a movable body 210, a third connecting portion 220 and a fourth connecting portion 230, and the third connecting portion 220 and the fourth connecting portion 230 are connected to both sides of the movable body 210.

[0055] The first connection part 120 of the fixed bracket 100 is rotatably connected with the third connection part 220 of the mobile bracket 200 to form a rotation axis P, the second connection part 130 of the fixed bracket 100 is connected with the fourth connection part 230 of the mobile bracket 200 through the bracket height adjustment member 300, and the fourth connection part 230 is adjusted on the bracket height adjustment member 300 to drive the mobile bracket 200 to rotate around the rotation axis P. For example, in the direction shown in the figure, the rotation axis P extends in the horizontal direction, and the mobile bracket 200 rotates around the rotation axis P in a vertical plane.

[0056] The movable bracket 200 of the utility model rotates around the rotation axis P, driving the movable body 210 and the driving member connected thereto to swing up and down, adjusting the center distance of the synchronous belt pulleys to achieve the tension of the synchronous belt.

[0057] In detail, combined with Figure 1 and Figure 3 , adjust the fourth connection part 230 on the left side of the mobile bracket 200 to move upward on the bracket height adjustment member 300, so that the left side of the mobile bracket 200 is lifted, and the mobile bracket 200 as a whole rotates upward around the rotation axis P formed by the rotational connection between the third connection part 220 on the right side and the first connection part 120, that is, the mobile bracket 200 as a whole rotates clockwise around the rotation axis P on the right side in the vertical plane by an angle. At this time, the mobile bracket 200 is relative to Figure 1 The initial position shown is some distance away from the reference fixed support 100 .

[0058] Combination Figure 1 and Figure 4 , adjust the fourth connection part 230 on the left side of the mobile bracket 200 to move downward on the bracket height adjustment member 300, so that the left side of the mobile bracket 200 drops, and the mobile bracket 200 as a whole rotates downward around the rotation axis P formed by the rotational connection between the third connection part 220 on the right side and the first connection part 120 of the fixed bracket 100, that is, the mobile bracket 200 as a whole rotates counterclockwise around the rotation axis P on the right side in the vertical plane by an angle. At this time, the mobile bracket 200 is relative to Figure 1 The initial position shown is close to the reference fixing bracket 100 by a distance.

[0059] The fixed bracket 100 is, for example, fixedly installed on a fixed device such as the ground or a platform, and the mobile bracket 200 is, for example, arranged above the fixed bracket 100. Of course, in other embodiments, the mobile bracket 200 can also be arranged on the side of the fixed bracket 100, etc. The illustration of the utility model takes the mobile bracket 200 connected to the top of the fixed bracket 100 as an example, but is not limited to this.

[0060] In some embodiments of the tensioning support 10 of the present invention, the first connecting portion 120 and the second connecting portion 130 of the fixing bracket 100 are vertically arranged on the upper surface of the fixing body 110. As shown in the figure, the first connecting portion 120 and the second connecting portion 130 are formed by extending upward from the left and right sides of the upper surface of the fixing body 110. Figure 2 As shown, there are two first connection parts 120 and two second connection parts 130 , and correspondingly, there are also two third connection parts 220 and two fourth connection parts 230 , so the connection is more stable.

[0061] In some embodiments of the tensioning support 10 of the present invention, the bracket height adjustment member 300 includes a movable bolt 310, which has a simple structure, is easy to implement, and has low cost.

[0062] In detail, Figure 1 and 5 As shown, the hinge bolt 310 includes a rotating portion 311 and a threaded portion 312. The rotating portion 311 is rotatably connected to the second connecting portion 130 of the fixed bracket 100. For example, the rotating portion 311 and the second connecting portion 130 can be connected via a pin. The fourth connecting portion 230 of the mobile bracket 200 is connected to the threaded portion 312 of the hinge bolt 310 and can move up and down along the threaded portion 312. Figure 3 The fourth connecting portion 230 moves upward along the threaded portion 312, thereby driving the movable bracket 200 to rotate clockwise in the vertical plane. Figure 4, the fourth connection portion 230 moves downward along the threaded portion 312, thereby driving the movable bracket 200 to rotate counterclockwise in the vertical plane.

[0063] Furthermore, the bracket height adjustment member 300 further includes an upper locking nut 320 and a lower locking nut 330 adapted to the threaded portion 312, and the fourth connection portion 230 of the mobile bracket 200 is sandwiched between the upper locking nut 320 and the lower locking nut 330. The utility model adjusts the position of the fourth connection portion 230 on the movable bolt 310 by the upper locking nut 320 and the lower locking nut 320, so that the mobile bracket 200 can be moved away from the fixed bracket 100 or close to the fixed bracket 100 around the rotation axis P.

[0064] The present invention, for example, increases the contact area between the upper locking nut 320 , the lower locking nut 320 , the gasket and the fourth connecting portion 230 of the movable bracket 200 by cooperating with the pin shaft and the movable bolt 310 , thereby making the structure more stable.

[0065] It should be noted that the present embodiment uses a movable bolt 310 as the bracket height adjustment member 300 for adjusting the fourth connecting part 230. In other embodiments, a slide rail, a clamping structure, etc. may also be used, all of which can achieve the fourth connecting part 230 to adjust the position on the bracket height adjustment member 300 to drive the mobile bracket 200 to rotate around the rotation axis P.

[0066] In some embodiments of the tensioning support 10 of the present invention, Figure 4 As shown, the moving body 210 includes a first side surface 211, and the third connecting portion 220 is connected to the bottom of the first side surface 211. The third connecting portion 220 is connected to the first connecting portion 120, for example, by a rotating pin.

[0067] The moving body 210 includes a second side surface 212 disposed opposite to the first side surface 211 , and the fourth connecting portion 230 is connected to the top of the second side surface 212 .

[0068] like Figures 6 to 9 As shown, the synchronous belt drive tensioning mechanism 1 of the utility model includes a tensioning support 10, a driving member 20, a working member 30 and a synchronous belt 40. The synchronous belt 40 transmits and connects the driving member 20 and the working member 30. The driving member 20 is connected to the moving body 210 of the moving bracket 200 of the tensioning support 10.

[0069] The mobile body 210 of the mobile bracket 200 includes an upper connecting surface 213 (such as Figure 1 As shown), the driving member 20 is connected to the upper connecting surface 213.

[0070] Combination Figure 1The fourth connecting part 230 is adjusted in position on the bracket height adjustment member 300 to drive the movable bracket 200 to rotate around the rotation axis P, thereby driving the driving member 20 to move away from or close to the fixed bracket 100, that is, the driving member 20 adjusts the distance from the working member 30 to achieve the purpose of tensioning the synchronous belt 40 connected to the driving member 20 and the working member 30.

[0071] In detail, Figure 1 , Figure 6 and Figure 7 As shown, the fourth connecting part 230 on the left side of the movable bracket 200 is adjusted to move upward on the bracket height adjustment member 300, and the movable bracket 200 as a whole rotates clockwise around the rotation axis P. At this time, the driving member 20 on the movable bracket 200 is relatively close to the working member 30 to meet the connection needs of the shorter synchronous belt 40.

[0072] like Figure 1 , Figure 6 and Figure 8 As shown, the fourth connecting part 230 on the left side of the movable bracket 200 is adjusted to move downward on the bracket height adjustment member 300, and the movable bracket 200 as a whole rotates counterclockwise around the rotation axis P. At this time, the driving member 20 on the movable bracket 200 is relatively far away from the working member 30 to meet the connection needs of the longer synchronous belt 40.

[0073] The utility model enables the driving member 20 to rotate up and down around the rotating shaft P of the fixed hinge shaft to adjust the tightness of the synchronous belt 40. The operation is simple and convenient, and the problem of limited adjustment space and small adjustment range is perfectly solved.

[0074] like Fig.10 As shown, Fig.10 The schematic diagram of the structure of the synchronous belt transmission tensioning mechanism of the utility model applied to the electro-tinning unit. The synchronous belt transmission tensioning mechanism 1 of the utility model is applied to the conductive roller mechanism of the electro-tinning unit involved in the electro-tinning production line, so as to adjust the conductive roller transmission synchronous belt, facilitate the initial installation of the synchronous belt and the tensioning of the synchronous belt after long-term use, and prevent the synchronous belt from stretching and becoming loose during use, thereby affecting the transmission efficiency.

[0075] In the electro-tinning production line, the conductive roller of the working part 30 of the electro-tinning unit serves as an electrode, which is connected to the cathode of the rectifier during the production process. The electrolytic current is guided to the anode plate through the anode copper bar, and then the conductive ions in the electrolyte transfer the current to the strip steel to achieve electrochemical processing of the strip steel. The conductive roller is driven by a reduction motor as a driving member 20, and the reduction motor and the conductive roller are driven by a synchronous belt 40.

[0076] The electroplating tinning unit adopts the Frosten process with soluble anode to deposit metallic tin on the strip steel, and the plating solution system is MSA. The strip steel continuously passes through the section by the conductive roller at the top of the vertical working tank and the sinking roller at the bottom. The conductive roller at the top of each tank connects the strip steel to the cathode of the electroplating power supply, and the metallic tin is deposited on the surface of the strip steel during the process of passing through the tank liquid. In order to prevent the conductive roller from heating and deforming during operation, the end of the conductive roller is cooled by water.

[0077] The synchronous belt transmission tensioning mechanism 1 of the utility model can be designed with a fixed bracket 100 and a movable bracket 200 according to a required adjustment range, so as to effectively realize the tension adjustment of the synchronous belt 40 .

[0078] Of course, the synchronous belt transmission tensioning mechanism 1 of the present invention is not only applicable to the electro-tinning conductive roller mechanism, but also applicable to other synchronous belt transmission devices.

[0079] The fixed body 110 of the fixed bracket 100 is, for example, made of Q235A steel plates, with a bottom plate thickness of 16 mm and a 15 mm thick rib plate in the middle. The moving body 210 of the moving bracket 200 is, for example, made of 10 mm thick Q235A steel plates welded together, and the upper surface 213 of the top of the moving body 210 is designed as the installation position of the driving member 30. The synchronous belt 40 is, for example, an HTD series circular arc tooth industrial synchronous belt. The synchronous belt 40 uses high-quality synthetic chloroprene rubber as the main raw material, and is supplemented with a variety of auxiliary materials for different purposes. The skeleton material is high-quality glass fiber rope, which has the characteristics of good dynamic bending, good crack resistance, aging resistance, heat resistance, oil resistance and wear resistance.

[0080] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A tensioning support, characterized in that: include: A fixing bracket, comprising a fixing body and a first connecting portion and a second connecting portion connected to the fixing body; and A mobile bracket, comprising a mobile body and a third connecting part and a fourth connecting part connected to two sides of the mobile body; Among them, the first connecting part is rotatably connected with the third connecting part to form a rotating axis, the second connecting part is connected with the fourth connecting part through a bracket height adjustment member, and the fourth connecting part adjusts its position on the bracket height adjustment member to drive the movable bracket to rotate around the rotating axis.

2. The tensioning support according to claim 1, characterized in that The first connection portion and the second connection portion are vertically disposed on an upper surface of the fixing body.

3. The tensioning support according to claim 1, characterized in that The rotation axis extends in a horizontal direction, and the movable bracket rotates around the rotation axis in a vertical plane.

4. The tensioning support according to claim 1, characterized in that The bracket height adjustment member includes a hinge bolt.

5. The tensioning support according to claim 4, characterized in that The articulated bolt comprises a rotating portion and a threaded portion, the rotating portion is rotatably connected to the second connecting portion, and the fourth connecting portion is connected to the threaded portion and can move up and down along the threaded portion.

6. The tensioning support according to claim 5, characterized in that The bracket height adjustment member also includes an upper locking nut and a lower locking nut matched with the threaded portion, and the fourth connecting portion is clamped between the upper locking nut and the lower locking nut.

7. The tensioning support according to claim 1, characterized in that The moving body includes a first side surface, and the third connecting portion is connected to the bottom of the first side surface.

8. The tensioning support according to claim 7, characterized in that The moving body includes a second side surface arranged opposite to the first side surface, and the fourth connecting portion is connected to the top of the second side surface.

9. A synchronous belt transmission tensioning mechanism, comprising a driving member, a working member and a synchronous belt, wherein the synchronous belt transmission connects the driving member and the working member, and is characterized in that: It also comprises the tensioning support according to any one of claims 1 to 8, wherein the driving member is connected to the moving body.

10. The synchronous belt transmission tensioning mechanism according to claim 9, characterized in that: The moving body comprises an upper connecting surface, and the driving member is connected to the upper connecting surface.

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