Synchronous pulley tensioner

Abstract

The utility model discloses a synchronous pulley tensioner which comprises a fixed seat and a connecting assembly, the fixed seat is provided with an installation groove, the connecting assembly is arranged in the installation groove, the connecting assembly is connected with the fixed seat through an adjusting bolt, and the connecting assembly is used for being connected with a transmission belt. The adjusting bolt is used for adjusting the pulling force of the connecting assembly; according to the utility model, the mounting groove is formed in the fixed seat, the connecting assembly is connected with the mounting groove through the adjusting bolt, the pulling force of the connecting assembly on the transmission belt can be quickly adjusted, so that the tensioning force of the belt transmission is adjusted, the fixed seat and the shaft seat of the connecting assembly are simple in structure, low in manufacturing cost and small in structure, and the mounting space can be saved; and installation in a narrow space is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of tensioner, specifically related to a synchronous pulley tensioner. BACKGROUND

[0002] The accuracy of the lung function instrument is highly dependent on regular and accurate calibration, and some calibration devices on the market have many problems, such as the power transmission mode of the traditional calibration device through ordinary belt transmission. The ordinary belt transmission is prone to slipping, which causes unstable transmission of gas flow and other calibration parameters, seriously affects the calibration accuracy, and after long-term use, the transmission parts are severely worn and cannot maintain stable tension, so that the reliability of the calibration device is greatly reduced. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a synchronous pulley tensioner, sets up the installation groove on the fixed seat, is connected between the connecting component and the installation groove through the adjusting bolt connection, can quickly adjust the tension of the connecting component to the transmission belt, thereby adjusting the tension of the belt drive.

[0004] The utility model discloses the following technical scheme realizes:

[0005] A synchronous pulley tensioner, comprising a fixed seat and a connecting component, the fixed seat is provided with an installation groove, the connecting component is arranged in the installation groove, the connecting component is connected with the fixed seat through an adjusting bolt, the connecting component is used for connecting a transmission belt, and the adjusting bolt is used for adjusting the tension of the connecting component.

[0006] Further, the connecting component comprises an axle seat, a shaft rod and a connecting wheel, the axle seat is provided with a let-in slot, the connecting wheel is arranged in the let-in slot, the shaft rod is inserted into the axle seat and is matched with the axle seat to fix the connecting wheel, and the connecting wheel is arranged on the shaft rod and is rotationally connected with the shaft rod.

[0007] Further, a bearing is arranged between the shaft rod and the connecting wheel.

[0008] Further, the fixed seat is provided with a let-in opening at the bottom of the installation groove, and the let-in opening is used for letting in the connecting wheel.

[0009] Further, the fixed seat is provided with a limiting flange on the left and right side walls of the installation groove, and the limiting flange is used for limiting the axle seat.

[0010] Further, the axle seat is provided with a groove at the bottom, the adjusting bolt passes through the axle seat and the fixed seat and is fixed through a nut, and the top end of the adjusting bolt is located in the groove.

[0011] Further, the fixed seat is provided with a lug on the left and right sides, and the lug is provided with a waist-shaped hole.

[0012] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0013] The utility model discloses a fixing seat is provided with the installation groove, and the connecting component is connected with the installation groove through the adjusting bolt, can quickly adjust the connecting component's tension to transmission belt, thereby adjusting the tension of the belt drive, and the shaft seat structure of fixing seat and connecting component is simple, and the manufacturing cost is low, and the structure is small, can save the installation space, and is convenient to install in the narrow space. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings in the embodiment will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as the limitation to the scope, and for the ordinary skilled person in the art, other related drawings can also be obtained according to these drawings without the creative labor.

[0015] Figure 1 It is the structural diagram of the synchronous pulley tensioner of the utility model.

[0016] Figure 2 It is the structural diagram of the fixing seat in the synchronous pulley tensioner of the utility model.

[0017] Figure 3 It is the structural diagram of the shaft seat in the synchronous pulley tensioner of the utility model.

[0018] Wherein: 1-fixed seat, 11-installation groove, 12-ear, 13-limit flange, 14-give way, 2-shaft seat, 21-groove, 3-shaft rod, 4-connecting wheel, 5-adjusting bolt, 6-nut. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantage of the embodiment of the utility model more clearly, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, and obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments.

[0020] Embodiment 1:

[0021] A synchronous pulley tensioner, such as Figure 1 、 Figure 2 and Figure 3As shown, including fixed seat 1 and connecting assembly, fixed seat 1 is used for being connected with external setting, fixed seat 1 is provided with mounting groove 11, connecting assembly is arranged in mounting groove 11, mounting groove 11 is used for limiting connecting assembly, connecting assembly is connected with fixed seat 1 through adjusting bolt 5, mounting groove 11 can avoid left and right displacement of connecting assembly;Connecting assembly is used for connecting synchronous belt, adjusting bolt 5 is used for adjusting the tension of connecting assembly, thereby adjusting the tension of synchronous belt;Connecting assembly includes shaft seat 2, shaft rod 3 and connecting wheel 4, shaft seat 2 is U-shaped structural member, shaft seat 2 is provided with let go slot, connecting wheel 4 is arranged in let go slot, shaft rod 3 passes through both ends of shaft seat 2, and the end of shaft rod 3 is provided with nut, and the nut is used for fastening shaft rod 3;Shaft rod 3 and shaft seat 2 are inserted and matched and used for fixing connecting wheel 4, connecting wheel 4 is arranged on shaft rod 3 and is rotatably connected with shaft rod 3;Connecting wheel 4 surface is provided with a plurality of tooth protrusions, and the surface of connecting wheel 4 is used for cooperating with the synchronous belt, avoiding the synchronous belt from slipping, and a bearing is arranged between shaft rod 3 and connecting wheel 4, and connecting wheel 4 can rotate on shaft rod 3;Fixed seat 1 is provided with let go mouth 14 at the bottom of mounting groove 11, and the let go mouth 14 is used for letting go of connecting wheel 4, avoiding interference with the side surface of connecting wheel 4, and simultaneously the overall volume of the tensioner can be reduced.

[0022] Embodiment 2:

[0023] In the above embodiment, the fixed seat 1 and the shaft seat 2 are further limited, the limiting flange 13 is arranged on the left and right side walls of the mounting groove 11 of the fixed seat 1, the limiting flange 13 is located on the left and right sides of the mounting groove 11, the limiting flange 13 is used for limiting the shaft seat 2, the shaft seat 2 is inserted between the limiting flanges 13, and the left and right shaking of the shaft seat 2 can be prevented;Meanwhile, the recess 21 is arranged on the bottom of the shaft seat 2, the adjusting bolt 5 passes through the bottom of the shaft seat 2 and the fixed seat 1 and is fixed through the nut 6, the top end of the adjusting bolt 5 is located in the recess 21, and the gap between the fixed seat 1 and the shaft seat 2 can be adjusted by rotating the nut 6, so as to adjust the tightness of the transmission belt;The left and right sides of the fixed seat 1 are both provided with the lug 12, the lug 12 is provided with the waist-shaped hole, and the fixed seat 1 is fixed with the external equipment through the waist-shaped hole by means of screws or rivets. The other parts of the embodiment are the same as those of the above-mentioned embodiment, and details are not repeated here.

[0024] In the description of the utility model, it needs to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0025] In addition, in the description of the present application, the terms such as "horizontal", "vertical" do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0026] In the description of the present application, it should be pointed out that, unless otherwise specified and limited, if the terms "set", "install", "connect", "connect" appear, they should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification or equivalent change made according to the technical essence of the present application to the above embodiments falls within the scope of protection of the present application.

Claims

1. A synchronous belt tensioner characterized by, The utility model provides a synchronous belt tensioner, which comprises a fixing base and a connecting assembly, the fixing base is provided with a mounting groove, the connecting assembly is arranged in the mounting groove, the connecting assembly is connected with the fixing base through an adjusting bolt, the connecting assembly is used for connecting a synchronous belt, and the adjusting bolt is used for adjusting the tension of the connecting assembly; the connecting assembly comprises an axle base, an axle rod and a connecting wheel, the axle base is provided with a clearance groove, the connecting wheel is arranged in the clearance groove, the axle rod is in plug-in fit with the axle base and is used for fixing the connecting wheel, and the connecting wheel is arranged on the axle rod and is in rotary connection with the axle rod.

2. The synchronous belt tensioner of claim 1, wherein, A bearing is arranged between the axle rod and the connecting wheel.

3. The synchronous belt tensioner of claim 1, wherein, The fixing base is provided with a clearance opening at the bottom of the mounting groove, and the clearance opening is used for accommodating the connecting wheel.

4. The synchronous belt tensioner of claim 1, wherein, Limit flanges are arranged on the left and right sidewalls of the mounting groove of the fixing base, and the limit flanges are used for limiting the axle base.

5. The synchronous belt tensioner of claim 1, wherein, The bottom of the axle base is provided with a groove, the adjusting bolt passes through the axle base and the fixing base and is fixed through a nut, and the top end of the adjusting bolt is located in the groove.

6. The synchronous belt tensioner of claim 1, wherein, Ears are arranged on the left and right sides of the fixing base, and waist-shaped holes are arranged on the ears.

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