Chain capable of adjusting tension

Abstract

The utility model discloses a tension-adjustable chain, and relates to the technical field of chains. The chain wheel comprises a base plate body and a main chain wheel body arranged on one side of the base plate body, and further comprises a driving shaft connected to the center of the main chain wheel body and extending into the base plate body, and an adjusting sleeve is arranged on the outer surface of the driving shaft; and the adjusting mechanism is arranged on the outer surface of the adjusting sleeve. The driving shaft is arranged to drive the main chain wheel body, so that the auxiliary chain wheel body can be driven to rotate through the chain body, follow-up driving is facilitated, the arranged adjusting mechanism can adjust the position of the adjusting sleeve, the adjusting sleeve can be sleeved on the outer side of the driving shaft, and when the adjusting sleeve is used for adjusting, the driving shaft can be driven to rotate. The position of the driving shaft can be adjusted, the tightness of the chain body can be adjusted by changing the position of the driving shaft, follow-up use of the chain body can be guaranteed, the adjusting sleeve can be limited through the arranged positioning sliding groove and the arranged positioning sliding plate, and deviation and shaking of the adjusting sleeve can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of chains, in particular to a chain with adjustable tension. Background Art

[0002] Chains are generally metal links or rings, mostly used for mechanical transmission and traction. Chain-shaped objects used to block traffic channels, chains used for mechanical transmission. Among similar products, the chain product series are divided according to the basic structure of the chain, that is, according to the shape of the components, the parts and parts that mesh with the chain, and the size ratio between the parts. There are many types of chains, but their basic structures are only the following, and the others are deformations of these types. We can see from the above chain structures that most chains are composed of chain plates, chain pins, bushings and other components. Other types of chains just make different changes to the chain plates according to different needs. Some chains are equipped with scrapers, some are equipped with guide bearings, and some are equipped with rollers on the chain plates, etc. These are all modifications for different applications.

[0003] During the use of the chain, it is inevitable that it will wear out, which will cause the chain tension to change. Then the staff will need to adjust the spacing of the sprockets to ensure that it reaches the original tension later. However, the traditional chain does not have a structure that can adjust the tension and cannot meet people's needs, thus reducing the practicality of the equipment. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a chain with adjustable tension, which can effectively solve the problems of the prior art.

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] The utility model is a tension-adjustable chain, comprising a base body and a main sprocket body arranged on one side of the base body, and further comprising:

[0007] A drive shaft is connected to the center of the main sprocket body and extends into the base body, and an adjustment sleeve is provided on the outer surface of the drive shaft;

[0008] The adjusting mechanism is arranged on the outer surface of the adjusting sleeve and is used for adjusting the position of the main sprocket body.

[0009] Furthermore, a secondary sprocket body is arranged on a side of the substrate body away from the main sprocket body, and a chain body is arranged on the outer surfaces of the secondary sprocket body and the main sprocket body.

[0010] Furthermore, the upper and lower ends of the adjusting sleeve are provided with positioning grooves, and the cross section of the positioning groove is a trapezoidal structure. The positioning slide plate is slidably engaged on the inner side of the positioning groove, and the left and right ends of the positioning slide plate are fixed to the base plate body.

[0011] Furthermore, the adjustment mechanism includes an adjustment hole, an adjustment screw and an adjustment handle. The adjustment hole is opened on one side of the adjustment sleeve. The adjustment screw is rotatably connected to the inner side of the adjustment sleeve, and the adjustment sleeve can be slid left and right for adjustment. The adjustment handle is fixed on one end of the adjustment screw.

[0012] Furthermore, the adjustment groove is opened on the outer side of the substrate body, and the adjustment screw rod passes through the inner side of the adjustment groove.

[0013] The utility model has the following beneficial effects:

[0014] The utility model can drive the main sprocket body by setting a driving shaft, so that the secondary sprocket body can be driven to rotate through the chain body, so as to facilitate subsequent driving. Then, the arranged adjusting mechanism can adjust the position of the adjusting sleeve. Since the adjusting sleeve can be sleeved on the outside of the driving shaft, when the adjusting sleeve is adjusted, the position of the driving shaft can be adjusted, so that the tightness of the chain body can be adjusted by changing the position of the driving shaft, thereby ensuring its subsequent use. The arranged positioning groove and positioning slide plate can limit the adjusting sleeve, so as to avoid the deviation and shaking of the adjusting sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a top view schematic diagram of the tension-adjustable chain of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the main sprocket body and the auxiliary sprocket body of the utility model;

[0018] Figure 3 It is a rear view schematic diagram of the tension-adjustable chain of the utility model;

[0019] Figure 4 For this utility model Figure 3 A partial enlarged schematic diagram in the middle;

[0020] Figure 5 It is a top view schematic diagram of the adjusting sleeve of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Base plate body; 2. Secondary sprocket body; 3. Primary sprocket body; 4. Chain body; 5. Driving shaft; 6. Adjusting sleeve; 7. Positioning slide groove; 8. Positioning slide plate; 9. Adjusting hole; 10. Adjusting screw rod; 11. Adjusting handle; 12. Adjusting groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1-3 As shown, the utility model is a tension-adjustable chain, comprising a substrate body 1 and a main sprocket body 3 arranged on one side of the substrate body 1, and further comprising:

[0025] A driving shaft 5 is connected to the central position of the main sprocket body 3 and extends into the substrate body 1. An adjusting sleeve 6 is arranged on the outer surface of the driving shaft 5. A secondary sprocket body 2 is arranged on the side of the substrate body 1 away from the main sprocket body 3. A chain body 4 is arranged on the outer surfaces of the secondary sprocket body 2 and the main sprocket body 3. The chain body 4 can be hooked on the outer sides of the main sprocket body 3 and the secondary sprocket body 2, so as to drive the main sprocket body 3. At the same time, the driving shaft 5 can be connected to the main sprocket body 3 to facilitate the subsequent driving of the main sprocket body 3 and the subsequent adjustment.

[0026] The upper and lower ends of the adjusting sleeve 6 are provided with positioning slots 7, and the cross section of the positioning slots 7 is a trapezoidal structure. The positioning slide plate 8 is slidably engaged with the inner side of the positioning slots 7, and the left and right ends of the positioning slide plate 8 are fixed to the substrate body 1. The positioning slots 7 can be slidably engaged with the outer side of the positioning slide plate 8, so that the position of the adjusting sleeve 6 can be limited, and the displacement of the adjusting sleeve 6 can be avoided to affect the subsequent adjustment of the position of the main sprocket body 3; the adjusting mechanism is arranged on the outer surface of the adjusting sleeve 6, and is used to adjust the position of the main sprocket body 3;

[0027] The adjusting mechanism includes an adjusting hole 9, an adjusting screw rod 10 and an adjusting handle 11. The adjusting hole 9 is provided on one side of the adjusting sleeve 6. The adjusting screw rod 10 is rotatably connected to the inner side of the adjusting sleeve 6, and the adjusting sleeve 6 can be slidably adjusted left and right. The adjusting handle 11 is fixed to one end of the adjusting screw rod 10. The adjusting handle 11 can drive the adjusting screw rod 10 to rotate, and one end of the adjusting screw rod 10 can be rotatably connected to the inner side of the adjusting hole 9. When the adjusting screw rod 10 rotates, the adjusting sleeve 6 can be pushed to one side, so that the position of the driving shaft 5 can be adjusted as needed, so that the tightness of the chain body 4 can be adjusted by changing the position of the driving shaft 5, thereby ensuring its subsequent use; the adjusting groove 12 is provided on the outer side of the substrate body 1, and the adjusting screw rod 10 runs through the inner side of the adjusting groove 12. The setting of the adjusting groove 12 can facilitate subsequent staff to adjust the adjusting handle 11 for subsequent driving.

[0028] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A tension-adjustable chain, comprising a base body (1) and a main sprocket body (3) arranged on one side of the base body (1), characterized in that: Also includes: A drive shaft (5) is connected to the central position of the main sprocket body (3) and extends into the base body (1); an adjustment sleeve (6) is provided on the outer surface of the drive shaft (5); An adjustment mechanism, arranged on the outer surface of the adjustment sleeve (6), for adjusting the position of the main sprocket body (3); The adjusting mechanism comprises an adjusting hole (9), an adjusting screw rod (10) and an adjusting handle (11); the adjusting hole (9) is provided on one side of the adjusting sleeve (6); the adjusting screw rod (10) is rotatably connected to the inner side of the adjusting sleeve (6); and the adjusting sleeve (6) can be slidably adjusted leftward and rightward; and the adjusting handle (11) is fixed to one end of the adjusting screw rod (10).

2. A tension-adjustable chain according to claim 1, characterized in that: A secondary sprocket body (2) is arranged on a side of the base plate body (1) away from the primary sprocket body (3), and a chain body (4) is arranged on the outer surfaces of the secondary sprocket body (2) and the primary sprocket body (3).

3. The tension-adjustable chain according to claim 1, characterized in that: The upper and lower ends of the adjusting sleeve (6) are provided with positioning grooves (7), and the cross section of the positioning groove (7) is a trapezoidal structure. The positioning slide plate (8) is slidably engaged with the inner side of the positioning groove (7), and the left and right ends of the positioning slide plate (8) are fixed to the base plate body (1).

4. The tension-adjustable chain according to claim 1, characterized in that: An adjustment groove (12) is provided on the outer side of the base plate body (1), and the adjustment screw rod (10) passes through the inner side of the adjustment groove (12).

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