Chain tensioning wheel mounting structure

Abstract

The invention provides a chain tensioning wheel mounting structure which comprises a chain wheel, a chain tensioning wheel, a first tensioning wheel and a second tensioning wheel. The first frame is movably connected to the inner side of the second frame in the axis direction of the screw rod, a mounting hole is formed in the second frame, and the screw rod is mounted on the inner side of the mounting hole; the adjusting nut is located on the outer side of the second frame, and the adjusting nut is in threaded connection with the screw rod; the compression spring is mounted between the adjusting nut and the second frame; and the second frame is movably connected to the base. The device has the beneficial effects that in the rotating process of the chain and the chain wheel, when sundries are clamped into the driving chain wheel, the chain becomes tight, the compression spring is compressed for buffering, the chain is prevented from being broken, in addition, the compression amount of the compression spring and the elastic force of the compression spring can be adjusted by rotating the adjusting nut, and the use range of the device is widened.

Description

Technical Field

[0001] The invention belongs to the technical field of chain installation, and in particular relates to a chain tensioner installation structure. Background Art

[0002] The chain is a commonly used transmission component in the production process of rolled steel. When the length of the chain is too long, a tensioning wheel needs to be installed to tension the chain to ensure transmission efficiency. The current chain tensioning wheel installation structure has the following problems during use: First, there is a lack of a buffer structure. When debris is stuck in the active sprocket or the driven sprocket, the chain will be tensioned, and in severe cases, the sprocket will break. Second, when the chain needs to be disassembled, the operation process is complicated and the limit bolts need to be completely disassembled to move the tensioning sprocket a large distance, resulting in low work efficiency. Summary of the invention

[0003] In view of this, the present invention aims to provide a chain tensioner installation structure, in order to solve at least one of the above-mentioned technical problems.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A chain tensioner installation structure, comprising:

[0006] A sprocket wheel, the sprocket wheel is rotatably connected to the first frame, and a screw rod is fixed on the first frame;

[0007] A second frame, wherein the first frame is movably connected to the inner side of the second frame along the axis direction of the screw rod, and a mounting hole is formed on the second frame, and the screw rod is mounted inside the mounting hole;

[0008] An adjusting nut, the adjusting nut being located outside the second frame and being threadedly connected to the screw rod;

[0009] A compression spring installed between the adjustment nut and the second frame;

[0010] A base, wherein the second frame is movably connected to the base.

[0011] Further, the sprocket is rotatably connected to the sliding shaft via a bearing, and the sliding shaft is fixedly connected to the first frame;

[0012] The first frame is provided with a connecting hole corresponding to the sliding shaft, and a sleeve is provided between the sliding shaft and the connecting hole.

[0013] Furthermore, a first strip-shaped through hole corresponding to the sliding shaft is formed on the second frame, the sliding shaft is installed inside the first strip-shaped through hole, and the width of the first strip-shaped through hole matches the diameter of the sliding shaft.

[0014] Furthermore, a gasket is provided between the adjusting nut and the compression spring, an annular positioning boss is fixedly provided at one end of the gasket adjacent to the compression spring, the compression spring is installed on the outer side of the screw rod, and the compression spring is installed on the inner side of the annular positioning boss.

[0015] Furthermore, a plug plate is fixedly provided at one end of the second frame away from the screw rod, a slot matching the plug plate is opened on the base, and the plug plate is installed on the inner side of the slot;

[0016] A slide plate is fixedly provided on the side of the plug board, a second strip-shaped through hole corresponding to the slide plate is opened on the base, the width of the second strip-shaped through hole matches the thickness of the slide plate, and the slide plate is installed on the inner side of the second strip-shaped through hole;

[0017] The base is provided with a limiting assembly, and the limiting assembly limits the end of the slide plate away from the sprocket.

[0018] Furthermore, the limiting assembly includes a swing arm, a threaded hole is formed on the swing arm, a limiting bolt is threadedly connected in the threaded hole, and the limiting bolt limits the end of the skateboard away from the sprocket.

[0019] Furthermore, one end of the swing arm away from the threaded hole is hinged to the base.

[0020] Furthermore, a limiting plate corresponding to the slide is fixedly provided on one end of the swing arm adjacent to the slide.

[0021] Furthermore, a positioning hole corresponding to the limiting bolt is opened on the slide plate, and the limiting bolt is installed on the inner side of the positioning hole.

[0022] Furthermore, a locking nut is threadedly connected to the limiting bolt, and the locking nut presses against the swing arm.

[0023] Compared with the prior art, the chain tensioner installation structure described in the present invention has the following beneficial effects:

[0024] (1) In the chain tensioner installation structure described in the present invention, during the rotation process of the chain and sprocket, when debris is stuck in the driving sprocket, the chain becomes tight and the compression spring is compressed to buffer and prevent the chain from breaking. In addition, the compression amount of the compression spring can be adjusted by rotating the adjusting nut, and the elastic force of the compression spring can be adjusted, thereby widening the scope of use of the device.

[0025] (2) The chain tensioner installation structure described in the present invention can be used to remove the chain by moving the second frame in the direction of the screw rod, compressing the compression spring, disengaging the limit bolt from the positioning hole, and then rotating the swing arm to release the limit on the slide. The operation process is convenient and the maintenance efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the chain tensioner installation structure according to an embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the side view of the chain tensioner installation structure according to an embodiment of the present invention;

[0029] Figure 3 For the embodiment of the present invention Figure 2 Schematic diagram of the structure at B in the middle;

[0030] Figure 4 It is a schematic cross-sectional structure diagram of the chain tensioner installation structure according to an embodiment of the present invention;

[0031] Figure 5 For the embodiment of the present invention Figure 4 Schematic diagram of the structure at A in the middle;

[0032] Figure 6 This is a schematic diagram of the second frame three-dimensional structure according to an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of a first frame three-dimensional structure according to an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of the base according to an embodiment of the present invention;

[0035] Fig. 9 This is a schematic diagram of the three-dimensional structure of the swing arm according to an embodiment of the present invention;

[0036] Fig.10 It is a schematic diagram of the cross-sectional structure of the sliding shaft according to an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 1. sprocket; 2. first frame; 3. second frame; 4. compression spring; 5. gasket; 6. adjusting nut; 7. base; 8. swing arm; 9. limit bolt; 10. locking nut; 11. chain; 101. sliding shaft; 102. bearing; 103. sleeve; 201. connecting hole; 202. screw; 301. first strip through hole; 302. mounting hole; 303. plug plate; 304. slide plate; 305. positioning hole; 501. annular positioning boss; 701. slot; 702. second strip through hole; 801. square hole; 802. threaded hole; 803. limit plate. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0043] like Figures 1 to 10 As shown, a chain 11 tensioning wheel installation structure includes:

[0044] Sprocket 1, sprocket 1 is rotatably connected to the first frame 2, and a screw rod 202 is fixed on the first frame 2;

[0045] The second frame 3, the first frame 2 is movably connected to the inner side of the second frame 3 along the axis direction of the screw rod 202, the second frame 3 is provided with a mounting hole 302, and the screw rod 202 is mounted inside the mounting hole 302;

[0046] An adjusting nut 6, the adjusting nut 6 is located outside the second frame 3, and the adjusting nut 6 is threadedly connected to the screw rod 202;

[0047] A compression spring 4, which is installed between the adjusting nut 6 and the second frame 3;

[0048] The base 7 is provided with a second frame 3 which is movably connected to the base 7 .

[0049] The sprocket 1 is rotatably connected to the sliding shaft 101 through a bearing 102 , and the sliding shaft 101 is fixedly connected to the first frame; a connecting hole 201 corresponding to the sliding shaft 101 is opened on the first frame 2 , and a sleeve 103 is provided between the sliding shaft 101 and the connecting hole 201 .

[0050] The second frame 3 is provided with a first strip-shaped through hole 301 corresponding to the sliding shaft 101 . The sliding shaft 101 is installed inside the first strip-shaped through hole 301 . The width of the first strip-shaped through hole 301 matches the diameter of the sliding shaft 101 .

[0051] A gasket 5 is provided between the adjusting nut 6 and the compression spring 4. An annular positioning boss 501 is fixedly provided at one end of the gasket 5 adjacent to the compression spring 4. The compression spring 4 is installed on the outer side of the screw rod 202. The compression spring 4 is installed on the inner side of the annular positioning boss 501. A damper is provided between the compression spring 4 and the second frame 3.

[0052] An insert plate 303 is fixedly provided at one end of the second frame 3 away from the screw rod 202, a slot 701 matching the insert plate 303 is opened on the base 7, and the insert plate 303 is installed on the inner side of the slot 701; a slide plate 304 is fixedly provided on the side of the insert plate 303, a second strip through hole 702 corresponding to the slide plate 304 is opened on the base 7, the width of the second strip through hole 702 matches the thickness of the slide plate 304, and the slide plate 304 is installed on the inner side of the second strip through hole 702; a limit assembly is provided on the base 7, and the limit assembly limits the end of the slide plate 304 away from the sprocket 1.

[0053] The limiting assembly includes a swing arm 8, which has a threaded hole 802. The threaded hole 802 is threadedly connected to a limiting bolt 9. The limiting bolt 9 limits the end of the slide plate 304 away from the sprocket 1. By rotating the limiting bolt 9, the second frame 3 can be moved, and the position of the sprocket 1 can be adjusted to tighten the chain 11. The adjustment process is convenient and the work efficiency is improved.

[0054] One end of the swing arm 8 away from the threaded hole 802 is hinged to the base 7. The hinged swing arm 8 is convenient for releasing the limit on the slide plate 304, and the second frame 3 can be moved a long distance to repair the chain 11. A directional hole is opened on the swing arm 8, and the threaded hole 802 is located on the inner side wall of the square hole 801 adjacent to the slide plate 304.

[0055] A limiting plate 803 corresponding to the slide 304 is fixedly provided on one end of the swing arm 8 adjacent to the slide 304 , and the limiting plate 803 plays a positioning role. During the rotation of the swing arm 8 , when the limiting plate 803 limits the position, the limiting bolt 9 is aligned with the slide 304 .

[0056] A positioning hole 305 corresponding to the limiting bolt 9 is formed on the slide plate 304 . The limiting bolt 9 is installed inside the positioning hole 305 . The positioning hole 305 positions the limiting bolt 9 to prevent the swing arm 8 from rotating.

[0057] A locking nut 10 is threadedly connected to the limiting bolt 9 , and the locking nut 10 presses against the swing arm 8 , so that the locking nut 10 prevents the limiting bolt 9 from loosening.

[0058] Working process:

[0059] When this scheme is implemented, the position of the chain 11 is as follows Figure 4 As shown, during the rotation process of the chain 11 and the sprocket 1, when debris is stuck in the driving sprocket 1, the chain 11 becomes tighter and the compression spring 4 is compressed for buffering to prevent the chain 11 from breaking. The position of the sprocket 1 is adjusted by rotating the limit bolt 9 to tighten the chain 11. The compression amount of the compression spring 4 can be adjusted by rotating the adjusting nut 6. The elastic force of the compression spring 4 is adjusted to expand the use range of the device. When the chain 11 needs to be removed, the second frame 3 is moved in the direction of the screw rod 202, the compression spring 4 is compressed, the limit bolt 9 is disengaged from the positioning hole 305, and then the swing arm 8 is rotated to release the limit on the slide plate 304. The operation process is convenient and the maintenance efficiency is improved.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A chain tensioner installation structure, characterized in that: include: A sprocket (1), the sprocket (1) being rotatably connected to a first frame (2), and a screw rod (202) being fixedly provided on the first frame (2); A second frame (3), wherein the first frame (2) is movably connected to the inner side of the second frame (3) along the axis direction of the screw rod (202), and a mounting hole (302) is formed on the second frame (3), and the screw rod (202) is mounted on the inner side of the mounting hole (302); an adjusting nut (6), the adjusting nut (6) being located outside the second frame (3), the adjusting nut (6) being threadedly connected to the screw rod (202); A compression spring (4), wherein the compression spring (4) is installed between the adjusting nut (6) and the second frame (3); A base (7), wherein the second frame (3) is movably connected to the base (7).

2. A chain tensioner installation structure according to claim 1, characterized in that: The sprocket (1) is rotatably connected to the sliding shaft (101) via a bearing (102), and the sliding shaft (101) is fixedly connected to the first frame; The first frame (2) is provided with a connection hole (201) corresponding to the sliding shaft (101), and a sleeve (103) is provided between the sliding shaft (101) and the connection hole (201).

3. A chain tensioner installation structure according to claim 2, characterized in that: The second frame (3) is provided with a first strip-shaped through hole (301) corresponding to the sliding shaft (101); the sliding shaft (101) is installed inside the first strip-shaped through hole (301); and the width of the first strip-shaped through hole (301) matches the diameter of the sliding shaft (101).

4. The chain tensioner installation structure according to claim 1, characterized in that: A gasket (5) is provided between the adjusting nut (6) and the compression spring (4), and an annular positioning boss (501) is fixedly provided at one end of the gasket (5) adjacent to the compression spring (4). The compression spring (4) is installed on the outer side of the screw rod (202), and the compression spring (4) is installed on the inner side of the annular positioning boss (501).

5. The chain tensioner installation structure according to claim 1, characterized in that: An insert plate (303) is fixedly provided at one end of the second frame (3) away from the screw rod (202), a slot (701) matching the insert plate (303) is provided on the base (7), and the insert plate (303) is installed on the inner side of the slot (701); A slide plate (304) is fixedly provided on the side of the plug plate (303); a second strip-shaped through hole (702) corresponding to the slide plate (304) is opened on the base (7); the width of the second strip-shaped through hole (702) matches the thickness of the slide plate (304); and the slide plate (304) is installed on the inner side of the second strip-shaped through hole (702); The base (7) is provided with a limiting assembly, and the limiting assembly limits the end of the slide plate (304) away from the sprocket (1).

6. A chain tensioner installation structure according to claim 5, characterized in that: The limiting assembly comprises a swing arm (8), a threaded hole (802) is formed on the swing arm (8), a limiting bolt (9) is threadedly connected to the threaded hole (802), and the limiting bolt (9) limits the end of the slide plate (304) away from the sprocket (1).

7. A chain tensioner installation structure according to claim 6, characterized in that: One end of the swing arm (8) away from the threaded hole (802) is hinged to the base (7).

8. A chain tensioner installation structure according to claim 7, characterized in that: A limiting plate (803) corresponding to the slide plate (304) is fixedly provided on one end of the swing arm (8) adjacent to the slide plate (304).

9. The chain tensioner installation structure according to claim 7, characterized in that: The slide plate (304) is provided with a positioning hole (305) corresponding to the limiting bolt (9), and the limiting bolt (9) is installed on the inner side of the positioning hole (305).

10. The chain tensioner installation structure according to claim 7, characterized in that: A locking nut (10) is threadedly connected to the limiting bolt (9), and the locking nut (10) is pressed against the swing arm (8).

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