Multi-groove belt structure of low-noise engine

Abstract

The low-noise engine multi-groove belt structure comprises a belt body, the belt body comprises a friction layer, a polyester fiber layer and a wide-angle cloth layer, the two sides of the polyester fiber layer are fixedly connected with the friction layer and the wide-angle cloth layer respectively, a T-shaped concave hole is formed in the side, facing the polyester fiber layer, of the friction layer, and the wide-angle cloth layer is arranged in the T-shaped concave hole. A T-shaped concave hole is formed in the polyester fiber layer, a positioning block is fixedly connected into the T-shaped concave hole, a connecting concave hole is formed in the positioning block, an L-shaped groove communicated with the connecting concave hole is formed in the side wall of the positioning block, a communicating hole is formed in the polyester fiber layer, a connecting shaft is arranged in the communicating hole in a penetrating mode, and an anti-disengaging rod is fixedly connected to the side wall of the connecting shaft. The connecting shaft penetrates into the connecting concave hole and enables the anti-disengaging rod to be connected into the L-shaped groove in a sliding mode, the end, away from the anti-disengaging rod, of the connecting shaft is fixedly connected with an anti-disengaging cover, and the anti-disengaging cover abuts against the side, back to the friction layer, of the polyester fiber layer, so that the purpose of improving the structural strength is achieved.

Description

Technical Field

[0001] The utility model relates to the field of engines, in particular to a multi-groove belt structure of a low-noise engine. Background Art

[0002] At present, a Chinese patent with authorization announcement number CN209762141U discloses a multi-V belt, which includes a belt body, and a plurality of triangular wedges are evenly distributed on the working surface of the belt body, adjacent triangular wedges are horizontally formed with a plurality of mutually parallel "U"-shaped grooves, and adjacent triangular wedges are longitudinally formed with a plurality of mutually parallel "V"-shaped grooves, the angle between the "U"-shaped groove and the cross-section of the belt body is 30°~45°, and the angle of the "V"-shaped angle of the "V"-shaped groove is 20°~30°.

[0003] By setting the angle between the "U" and the cross section of the belt body to 30°~45°, the heat dissipation gap can be expanded and the multi-V belt can dissipate heat better; at the same time, the wedge rubber layer used for the main work is made of a mixture of artificial fiber and hydrogenated nitrile rubber, and the fiber fluff formed on the surface can provide a larger friction and heat dissipation area, which further improves high temperature resistance.

[0004] Since the fiber layer is made of rayon material, debonding may easily occur between the fiber layer and the wedge rubber layer due to high temperature, which may easily cause the fiber layer to fall off from the wedge rubber layer and result in poor strength. Utility Model Content

[0005] In view of this, the utility model aims to provide a low-noise engine multi-groove belt structure to achieve the purpose of improving structural strength.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a low-noise engine multi-groove belt structure, including a belt body, the belt body including a friction layer, a polyester fiber layer and a wide-angle cloth layer, the two sides of the polyester fiber layer are fixedly connected to the friction layer and the wide-angle cloth layer respectively, the friction layer is provided with a T-shaped recessed hole on the side facing the polyester fiber layer, a positioning block is fixedly connected in the T-shaped recessed hole, a connecting recessed hole is provided on the positioning block, an L-shaped groove connected to the connecting recessed hole is provided on the side wall of the positioning block, a connecting hole is provided on the polyester fiber layer, a connecting shaft is passed through the connecting hole, an anti-slip rod is fixedly connected to the side wall of the connecting shaft, the connecting shaft penetrates into the connecting recessed hole and makes the anti-slip rod slidably connected to the L-shaped groove, an anti-slip cover is fixedly connected to the end of the connecting shaft away from the anti-slip rod, and the anti-slip cover is tightly pressed against the side of the polyester fiber layer facing away from the friction layer.

[0007] To implement the above technical solution, the polyester fiber layer is fixed on the friction layer, the connecting shaft is inserted into the connecting concave hole, the connecting shaft is rotated, the anti-slip rod is moved into the L-shaped groove, the anti-slip cover is pressed against the side of the polyester fiber layer facing away from the friction layer, and finally the wide-angle cloth layer is fixed to the side of the polyester fiber layer facing away from the friction layer. During the rotation of the belt body, the anti-slip rod is pressed against the inner wall of the L-shaped groove due to the action of centrifugal force, so that the connecting shaft cannot fall out of the connecting concave hole, thereby maintaining the pressing effect between the polyester fiber layer and the friction layer, thereby achieving the purpose of improving the structural strength.

[0008] As a preferred solution of the utility model, a mounting recessed hole is provided on a side of the wide-angle cloth layer facing the polyester fiber layer, and the anti-detachment cover is embedded in the mounting recessed hole.

[0009] To implement the above technical solution, the wide-angle cloth layer is fixed to the side of the polyester fiber layer facing away from the friction layer, and the anti-detachment cover is located in the mounting recessed hole so that the surface of the wide-angle cloth layer can be smoother and the contact area between the wide-angle cloth layer and the anti-detachment cover is increased so that the anti-detachment cover can rotate.

[0010] As a preferred solution of the utility model, a first groove is provided on a side of the anti-dropout cover facing away from the anti-dropout rod, and a second groove is provided on a side wall of the anti-dropout cover.

[0011] To implement the above technical solution, glue is injected into the mounting recessed hole so that the glue can penetrate into the first groove and the second groove, thereby making the connection between the anti-detachment cover and the wide-angle cloth layer tighter and preventing the anti-detachment cover from rotating.

[0012] As a preferred solution of the utility model, the L-shaped groove includes a straight groove section and a transverse groove section, the straight groove section is connected to the end face of the positioning block and is arranged along the height direction of the positioning block, one end of the transverse groove section is connected to the straight groove section, and the angle between the transverse groove section and the straight groove section is greater than 90° and less than 180°.

[0013] To implement the above technical solution, the connecting shaft is inserted into the connecting recessed hole and the connecting shaft is rotated. During this period, the anti-dropping rod moves along the straight groove section into the transverse groove section, so that the connecting shaft can further generate a tendency to move closer to the positioning block, so that the anti-dropping cover can further generate a tendency to move closer to the positioning block, and the polyester fiber layer can be further pressed against the friction layer, thereby greatly improving stability.

[0014] As a preferred solution of the utility model, one end of the transverse groove section away from the straight groove section is connected to a clamping block through a flip structure, and a receiving cavity for positioning the anti-drop rod is formed between the clamping block and the bottom wall of the transverse groove section.

[0015] To implement the above technical solution, the anti-slip rod is moved into the transverse groove section. During the rotation of the belt body, the clamping block is flipped and placed in the transverse groove section due to the action of centrifugal force, so that the anti-slip rod cannot slip out of the transverse groove section.

[0016] As a preferred solution of the utility model, the flipping structure includes a placement groove and a pin shaft. The placement groove is opened on the inner wall of the transverse groove section. The pin shaft is rotatably connected in the placement groove and fixedly connected to the card block. The card block is located in the placement groove and is rotated along the axis of the pin shaft by the action of centrifugal force and then moved out of the placement groove.

[0017] To implement the above technical solution, the pin is rotatably connected to the placement groove, and the card block is fixed on the pin. The card block is located in the placement groove. During the high-speed rotation of the belt body, the card block is rotated along the axis of the pin and placed in the transverse groove section, so that the anti-slip rod contacts the card block and cannot slip out of the transverse groove section.

[0018] As a preferred solution of the utility model, the friction section is provided with an inclined groove and an anti-skid groove, a plurality of the inclined grooves are arranged in parallel and along the length direction of the belt body, and a plurality of the anti-skid grooves are arranged in parallel and along the width direction of the belt body.

[0019] Implementing the above technical solution improves friction and reduces noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0021] Figure 2 To reflect Figure 1 A magnified image of point A;

[0022] Figure 3 A cross-sectional schematic diagram showing a positioning block;

[0023] Figure 4 A schematic diagram showing the flip structure.

[0024] Figure numerals: 11, friction layer; 12, polyester fiber layer; 13, wide-angle cloth layer; 21, oblique groove; 22, anti-slip groove; 3, T-shaped recessed hole; 31, positioning block; 32, connecting recessed hole; 4, L-shaped groove; 41, straight groove section; 42, transverse groove section; 5, connecting hole; 51, connecting shaft; 52, anti-slip rod; 6, flip structure; 61, placement groove; 62, pin shaft; 7, block; 8, anti-slip cover; 81, first groove; 82, second groove; 9, installation recessed hole. DETAILED DESCRIPTION

[0025] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0026] A low-noise engine multi-groove belt structure includes a belt body, the belt body includes a friction layer 11, a polyester fiber layer 12 and a wide-angle cloth layer 13, and the two sides of the polyester fiber layer 12 are respectively fixedly connected to the friction layer 11 and the wide-angle cloth layer 13. The friction layer 11 is made of artificial fiber.

[0027] The friction section is provided with an inclined groove 21 and an anti-skid groove 22, wherein a plurality of inclined grooves 21 are arranged in parallel and along the length direction of the belt body, and five anti-skid grooves 22 are arranged in parallel and along the width direction of the belt body.

[0028] A T-shaped recessed hole 3 is provided on the side of the friction layer 11 facing the polyester fiber layer 12, a positioning block 31 is fixed in the T-shaped recessed hole 3, so that the positioning block 31 is not easy to fall out of the T-shaped recessed hole 3, a connecting recessed hole 32 is provided on the positioning block 31, and an L-shaped groove 4 connected to the connecting recessed hole 32 is provided on the side wall of the positioning block 31. The L-shaped groove 4 includes a straight groove section 41 and a transverse groove section 42. The straight groove section 41 is connected to the end surface of the positioning block 31 and is arranged along the height direction of the positioning block 31. One end of the transverse groove section 42 is connected to the straight groove section 41. The angle between the transverse groove section 42 and the straight groove section 41 is greater than 90° and less than 180°.

[0029] A connecting hole 5 is provided on the polyester fiber layer 12, a connecting shaft 51 is provided in the connecting hole 5, and an anti-slip rod 52 is fixedly connected to the side wall of the connecting shaft 51. The connecting shaft 51 is inserted into the connecting recessed hole 32 and then rotated, so that the anti-slip rod 52 slides into the transverse groove section 42 along the straight groove section 41. There is friction between the anti-slip rod 52 and the inner wall of the transverse groove section 42.

[0030] One end of the transverse groove section 42 away from the straight groove section 41 is connected with a block 7 through a flip structure 6. An accommodating cavity for positioning the anti-slip rod 52 is formed between the block 7 and the bottom wall of the transverse groove section 42. The flip structure 6 includes a placement groove 61 and a pin 62. The placement groove 61 is arranged on the inner wall of the transverse groove section 42, and the pin 62 is rotatably connected to the placement groove 61 and fixedly connected to the block 7. The block 7 is located in the placement groove 61. During the high-speed rotation of the belt body, the block 7 is rotated along the axis of the pin 62 by the action of centrifugal force and then moved out of the placement groove 61. The block 7 contacts the inner wall of the transverse groove section 42 in an inclined state. Once the anti-slip rod 52 moves along the transverse groove section 42, it can contact the block 7, so that the anti-slip rod 52 cannot be moved out of the transverse groove section 42.

[0031] An anti-drop cover 8 is fixedly connected to one end of the connecting shaft 51 away from the anti-drop rod 52 , and the anti-drop cover 8 is tightly pressed against the side of the polyester fiber layer 12 facing away from the friction layer 11 . The outer diameter of the anti-drop cover 8 is larger than the inner diameter of the connecting hole 5 .

[0032] A first groove 81 is formed on a side of the anti-detachment cover 8 facing away from the anti-detachment rod 52 , and a second groove 82 is formed on a side wall of the anti-detachment cover 8 .

[0033] A mounting recessed hole 9 is provided on one side of the wide-angle cloth layer 13 facing the polyester fiber layer 12 , and the anti-drop cover 8 is embedded in the mounting recessed hole 9 .

[0034] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A low-noise engine multi-groove belt structure, comprising a belt body, wherein the belt body comprises a friction layer (11), a polyester fiber layer (12) and a wide-angle cloth layer (13), wherein both sides of the polyester fiber layer (12) are fixedly connected to the friction layer (11) and the wide-angle cloth layer (13), respectively, and wherein: The friction layer (11) is provided with a T-shaped recessed hole (3) on the side facing the polyester fiber layer (12); a positioning block (31) is fixedly connected in the T-shaped recessed hole (3); a connecting recessed hole (32) is provided on the positioning block (31); an L-shaped groove (4) connected to the connecting recessed hole (32) is provided on the side wall of the positioning block (31); a connecting hole (5) is provided on the polyester fiber layer (12); a connecting shaft (51) is passed through the connecting hole (5); an anti-slip rod (52) is fixedly connected to the side wall of the connecting shaft (51); the connecting shaft (51) passes through the connecting recessed hole (32) and enables the anti-slip rod (52) to be slidably connected to the L-shaped groove (4); an anti-slip cover (8) is fixedly connected to the end of the connecting shaft (51) away from the anti-slip rod (52); the anti-slip cover (8) is tightly pressed against the side of the polyester fiber layer (12) facing away from the friction layer (11).

2. A low-noise engine multi-groove belt structure according to claim 1, characterized in that: A mounting recessed hole (9) is provided on the side of the wide-angle cloth layer (13) facing the polyester fiber layer (12), and the anti-detachment cover (8) is embedded in the mounting recessed hole (9).

3. A low noise engine multi-groove belt structure according to claim 2, characterized in that: A first groove (81) is provided on the side of the anti-detachment cover (8) facing away from the anti-detachment rod (52), and a second groove (82) is provided on the side wall of the anti-detachment cover (8).

4. A low noise engine multi-groove belt structure according to claim 1, characterized in that: The L-shaped groove (4) comprises a straight groove section (41) and a transverse groove section (42); the straight groove section (41) is connected to the end surface of the positioning block (31) and is arranged along the height direction of the positioning block (31); one end of the transverse groove section (42) is connected to the straight groove section (41); and the angle between the transverse groove section (42) and the straight groove section (41) is greater than 90° and less than 180°.

5. A low-noise engine multi-groove belt structure according to claim 4, characterized in that: One end of the transverse groove section (42) away from the straight groove section (41) is connected to a clamping block (7) via a flip structure (6), and a receiving cavity for positioning the anti-slip rod (52) is formed between the clamping block (7) and the bottom wall of the transverse groove section (42).

6. A low-noise engine multi-groove belt structure according to claim 5, characterized in that: The flip structure (6) comprises a placement groove (61) and a pin shaft (62); the placement groove (61) is formed on the inner wall of the transverse groove section (42); the pin shaft (62) is rotatably connected to the placement groove (61) and is fixedly connected to the clamping block (7); the clamping block (7) is located in the placement groove (61) and is rotated along the axis of the pin shaft (62) by the action of centrifugal force and then moved out of the placement groove (61).

7. A low-noise engine multi-groove belt structure according to any one of claims 1 to 6, characterized in that: The friction section is provided with an inclined groove (21) and an anti-skid groove (22), a plurality of the inclined grooves (21) are arranged in parallel and along the length direction of the belt body, and a plurality of the anti-skid grooves (22) are arranged in parallel and along the width direction of the belt body.

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