Light rubber roller

Abstract

The utility model belongs to the technical field of rubber covered rollers, and particularly relates to a light rubber covered roller which comprises a roller core body, and roller shafts are formed at the two ends of the roller core body. The foaming polyurethane layer is arranged outside the roller core body; the polyurethane outer layer is integrally formed outside the foaming polyurethane layer; the composite supporting layer is arranged between the roller core body and the outer foaming polyurethane layer; and a weight reduction gap is formed between the foaming polyurethane layer and the roller core body under the support of the composite support layer.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber rollers, and in particular relates to a light rubber roller. Background Art

[0002] Rubber rollers are roll-shaped products made of metal or other materials as the core and rubber covered by vulcanization. According to the surface morphology, they can be divided into: flat rollers and patterned rollers; EPDM rubber rollers can be divided into: butyl rubber rollers, nitrile rubber rollers, polyurethane rubber rollers and silicone rubber rollers according to the material. In addition, the rubber layer of traditional rubber rollers has poor toughness, and long-term use will cause damage to the rubber roller, thus affecting the use of the rubber roller. Summary of the invention

[0003] The object of the present invention is to provide a polyurethane rubber roller with high toughness and light weight in view of the above-mentioned technical problems.

[0004] In view of this, the present invention provides a lightweight rubber roller, comprising:

[0005] A roller core body, with roller shafts formed at both ends of the roller core body;

[0006] A foamed polyurethane layer, wherein the foamed polyurethane layer is arranged outside the roller core body;

[0007] The polyurethane outer layer is integrally formed and arranged outside the foamed polyurethane layer;

[0008] A composite support layer, the composite support layer is arranged between the roller core body and the outer foamed polyurethane layer;

[0009] A weight-reducing gap is formed between the foamed polyurethane layer and the roller core body under the support of the composite support layer.

[0010] In the above technical solution, further, it also includes:

[0011] The two end covers are respectively arranged at the two ends of the roller core body and abut against the ends of the foamed polyurethane layer, the polyurethane outer layer and the composite support layer and cover the shock-absorbing gap.

[0012] In the above technical solution, further, the composite support layer includes:

[0013] An inner arc support plate, the inner arc support plate is fixed on the roller core body;

[0014] An outer support plate is fixed on the inner arc-shaped support plate and supports the foamed polyurethane layer.

[0015] In the above technical solution, further, the inner arc-shaped support plate includes:

[0016] A U-shaped support portion, wherein a plurality of U-shaped support portions are evenly distributed on the outer side of the roller core body according to the circumference;

[0017] An arc-shaped support part, adjacent U-shaped support parts are connected by the arc-shaped support part, and the arc-shaped opening of the arc-shaped support part is arranged towards the direction away from the roller core body;

[0018] The U-shaped opening of the U-shaped support part faces the side away from the roller core body, and the open end of the U-shaped support part abuts against the outer support plate, and the other end abuts against the roller core body.

[0019] In the above technical solution, further, the inner arc-shaped support plate includes:

[0020] An arc-shaped connecting part, and the arc-shaped connecting part connects adjacent U-shaped support parts and arc-shaped support parts.

[0021] In the above technical solution, further, the outer support plate includes:

[0022] Outer arc-shaped connecting sections, a plurality of outer arc-shaped connecting sections are evenly distributed in a circumferential direction and are respectively located outside a U-shaped support part and span the U-shaped support part;

[0023] An outer arc-shaped limiting part, adjacent outer arc-shaped connecting sections are connected by the outer arc-shaped limiting part, and the outer arc-shaped limiting part protrudes towards the inner arc-shaped support plate and is located within the arc-shaped support part.

[0024] In the above technical solution, further, the outer arc-shaped limiting part and the arc-shaped support part are fixedly connected by fasteners.

[0025] In the above technical solution, further, a weight-reducing gap is formed between the arc-shaped support part and the roller core body and between the outer arc-shaped connecting section and the U-shaped support part.

[0026] In the above technical solution, further, it further includes:

[0027] Positioning ribs, a plurality of positioning ribs are evenly distributed in a circumferential direction on the inner side of the foamed polyurethane layer, and the positioning ribs cooperate with the outer arc-shaped limiting part.

[0028] In the above technical solution, further, it further includes:

[0029] Positioning grooves, a plurality of positioning grooves are evenly distributed in a circumferential direction on the outer wall of the roller core body, and the positioning grooves cooperate with the bottom of the U-shaped support part to limit the U-shaped support part.

[0030] The beneficial effects of the present invention are:

[0031] 1. The setting of the foamed polyurethane layer can ensure the toughness of the outer rubber layer of the rubber roller, thereby improving the stability of the overall structure of the rubber roller;

[0032] 2. The setting of the composite support layer can ensure the overall outer diameter of the rubber roller while reducing the overall mass of the rubber roller, thereby improving the stability of the overall operation of the rubber roller and facilitating transportation and maintenance. Brief Description of the Drawings

[0033] Figure 1 is a schematic structural view of the present invention;

[0034] Figure 2 is a schematic cross-sectional view of the present invention;

[0035] The markings in the figures are as follows: 1 - roll core body, 2 - foamed polyurethane layer, 3 - polyurethane outer layer, 4 - end cap, 5 - inner arc-shaped support plate, 5a - U-shaped support part, 5b - arc-shaped support part, 5c - arc-shaped connection part, 6 - outer support plate, 6a - outer arc-shaped connection section, 6b - outer arc-shaped limiting part, 7 - positioning rib, 8 - positioning groove. Detailed Description of the Invention

[0036] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0037] Embodiment 1:

[0038] This embodiment provides a lightweight rubber roller, including:

[0039] A roll core body 1, and roll shafts are formed at both ends of the roll core body 1;

[0040] A foamed polyurethane layer 2, which is arranged outside the roll core body 1;

[0041] A polyurethane outer layer 3, which is integrally formed and arranged outside the foamed polyurethane layer 2;

[0042] A composite support layer, which is arranged between the roll core body 1 and the outer foamed polyurethane layer 2;

[0043] Wherein, a weight reduction gap is formed between the foamed polyurethane layer 2 and the roll core body 1 under the support of the composite support layer.

[0044] In the embodiment, the setting of the foamed polyurethane layer 2 can ensure the overall toughness of the rubber roller; and the polyurethane outer layer 3 is a non-foaming material, and the setting of the polyurethane outer layer 3 ensures the hardness and wear resistance of the rubber roller, thereby improving the service life of the rubber roller. And the setting of the composite support layer is used to support the foamed polyurethane layer 2 and the roll core body 1, and the formed weight reduction gap can ensure the strength of the rubber roller while reducing the mass of the rubber roller. The cross-sectional mass of the roll core body 1 is slightly larger than that of the roll shaft, and the foamed polyurethane layer 2 is supported by the composite support layer, thereby ensuring the outer diameter of the rubber roller while greatly reducing the mass of the roll core body 1.

[0045] Example 2:

[0046] This example provides a lightweight rubber roller. In addition to including the technical solutions of the above example, it also has the following technical features.

[0047] It also includes:

[0048] End caps 4. Two end caps 4 are respectively arranged at both ends of the roller core body 1 and abut against the ends of the foamed polyurethane layer 2, the polyurethane outer layer 3 and the composite support layer and shield the damping gap.

[0049] In the example, a bushing fixedly connected to the roller shaft of the roller core body 1 is formed on the end cap 4, and the bushing and the roller shaft are fixed by bolts; the setting of the end cap 4 can prevent the foamed polyurethane layer 2, the polyurethane outer layer 3 and the composite support layer from shifting, thereby improving the stability of the overall structure of the rubber roller; and can prevent foreign objects from entering the weight reduction gap.

[0050] Example 3:

[0051] This example provides a lightweight rubber roller. In addition to including the technical solutions of the above example, it also has the following technical features.

[0052] The composite support layer includes:

[0053] Inner arc-shaped support plate 5, and the inner arc-shaped support plate 5 is fixed on the roller core body 1;

[0054] Outer support plate 6, and the outer support plate 6 is fixed on the inner arc-shaped support plate 5 and supports the foamed polyurethane layer 2.

[0055] In the example, the inner arc-shaped support plate 5 plays the role of supporting the foamed polyurethane layer 2, and the setting of the outer support plate 6 can further support the foamed polyurethane layer 2, thereby ensuring the performance of the rubber roller.

[0056] Example 4:

[0057] This example provides a lightweight rubber roller. In addition to including the technical solutions of the above example, it also has the following technical features.

[0058] The inner arc-shaped support plate 5 includes:

[0059] U-shaped support portions 5a, and a plurality of U-shaped support portions 5a are evenly distributed on the outer side of the roller core body 1 in a circumferential direction;

[0060] Arc-shaped support portions 5b, and adjacent U-shaped support portions 5a are connected by the arc-shaped support portions 5b, and the arc-shaped openings of the arc-shaped support portions 5b are arranged in a direction away from the roller core body 1;

[0061] Wherein, the U-shaped opening of the U-shaped support portion 5a faces away from the roller core body 1, and the open end of the U-shaped support portion 5a abuts against the outer support plate 6, and the other end abuts against the roller core body 1.

[0062] In the embodiment, the U-shaped support portion 5a is arranged with a certain gap between the outer support plate 6 and the roller shaft body, thereby reducing the overall mass of the rubber roller; and the arc-shaped support portion 5b can further increase the gap between the foamed polyurethane layer 2 and the roller core body 1 through the support of the adjacent U-shaped support portion 5a, thereby greatly reducing the mass of the rubber roller.

[0063] Embodiment 5:

[0064] This embodiment provides a lightweight rubber roller. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0065] The inner arc-shaped support plate 5 includes:

[0066] An arc-shaped connecting portion 5c, and the arc-shaped connecting portion 5c connects the adjacent U-shaped support portion 5a and the arc-shaped support portion 5b.

[0067] In the embodiment, the arrangement of the arc-shaped connecting portion 5c can play a good role in connecting the U-shaped support portion 5a and the arc-shaped support portion 5b, ensuring the structural stability of the connection between the U-shaped support portion 5a and the arc-shaped support portion 5b, and at the same time reducing the extrusion of the inner arc-shaped support plate 5 on the outer support plate 6.

[0068] Embodiment 6:

[0069] This embodiment provides a lightweight rubber roller. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0070] The outer support plate 6 includes:

[0071] Outer arc-shaped connecting segments 6a, and several outer arc-shaped connecting segments 6a are evenly distributed in a circumferential manner and are respectively located outside a U-shaped support portion 5a and span the U-shaped support portion 5a;

[0072] Outer arc-shaped limiting portions 6b, and the adjacent outer arc-shaped connecting segments 6a are connected through the outer arc-shaped limiting portions 6b, and the outer arc-shaped limiting portions 6b bulge towards the inner arc-shaped support plate 5 and are located within the arc-shaped support portion 5b.

[0073] In the embodiment, the arrangement of the outer arc-shaped connecting segments 6a better supports the foamed polyurethane layer 2 on the U-shaped support portion 5a, and the arrangement of the outer arc-shaped limiting portions 6b can ensure better limiting contact between the outer support plate 6 and the inner arc-shaped support plate 5, thereby improving the stability of the connection between the outer support plate 6 and the inner arc-shaped support plate 5.

[0074] Embodiment 7:

[0075] This embodiment provides a lightweight rubber roller. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0076] The outer arc-shaped limiting portion 6b and the arc-shaped supporting portion 5b are fixedly connected by fasteners.

[0077] In the embodiment, the fastener can be a bolt. The outer arc-shaped limiting portion 6b and the arc-shaped supporting portion 5b are fixedly connected, so as to prevent the outer support plate 6 from rotating and shifting relative to the inner arc-shaped support plate 5, and further prevent the outer rubber layer of the rubber roller from sliding.

[0078] Embodiment 8:

[0079] This embodiment provides a lightweight rubber roller. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0080] The weight reduction gap is formed between the arc-shaped supporting portion 5b and the roller core body 1 and between the outer arc-shaped connecting section 6a and the U-shaped supporting portion 5a.

[0081] In the embodiment, the weight reduction gap is formed between the arc-shaped supporting portion 5b and the roller core body 1 and between the outer arc-shaped connecting section 6a and the outer arc-shaped connecting section 6a, which can greatly reduce the overall mass of the rubber roller, thus facilitating the handling and maintenance of the rubber roller.

[0082] Embodiment 9:

[0083] This embodiment provides a lightweight rubber roller. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0084] It further includes:

[0085] Positioning ribs 7. A plurality of positioning ribs 7 are evenly distributed circumferentially inside the foamed polyurethane layer 2, and the positioning ribs 7 cooperate with the outer arc-shaped limiting portion 6b.

[0086] In the embodiment, the setting of the positioning ribs 7 can improve the structural strength of the connection between the foamed polyurethane layer 2 and the outer support plate 6, and prevent the foamed polyurethane layer 2 from rotating or shifting.

[0087] Embodiment 10:

[0088] This embodiment provides a lightweight rubber roller. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0089] It further includes:

[0090] Positioning grooves 8. A plurality of positioning grooves 8 are evenly distributed circumferentially on the outer wall of the roller core body 1, and the positioning grooves 8 cooperate with the bottom of the U-shaped supporting portion 5a to limit the U-shaped supporting portion 5a.

[0091] In the embodiment, the provision of the positioning groove 8 can further improve the connection stability between the inner arc-shaped support plate 5 and the roll core body 1.

[0092] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A lightweight rubber roller, characterized in that: include: A roller core body (1), wherein roller shafts are formed at both ends of the roller core body (1); A foamed polyurethane layer (2), wherein the foamed polyurethane layer (2) is arranged outside the roller core body (1); A polyurethane outer layer (3), wherein the polyurethane outer layer (3) is arranged outside the foamed polyurethane layer (2); A composite support layer, wherein the composite support layer is arranged between the roller core body (1) and the outer foamed polyurethane layer (2); A weight-reducing gap is formed between the foamed polyurethane layer (2) and the roller core body (1) under the support of the composite support layer; The composite support layer comprises: An inner arc-shaped support plate (5), wherein the inner arc-shaped support plate (5) is fixed on the roller core body (1); An outer support plate (6), wherein the outer support plate (6) is fixed on the inner arc-shaped support plate (5) and supports the foamed polyurethane layer (2).

2. A lightweight rubber roller according to claim 1, characterized in that: Also includes: End covers (4), wherein the two end covers (4) are respectively arranged at the two ends of the roller core body (1) and abut against the ends of the foamed polyurethane layer (2), the polyurethane outer layer (3) and the composite support layer.

3. A lightweight rubber roller according to claim 2, characterized in that: The inner arc-shaped support plate (5) comprises: A U-shaped support portion (5a), wherein a plurality of the U-shaped support portions (5a) are evenly distributed on the outer side of the roller core body (1) along a circumference; An arc-shaped support portion (5b), adjacent U-shaped support portions (5a) are connected via the arc-shaped support portion (5b); The U-shaped opening of the U-shaped support portion (5a) faces a side away from the roller core body (1).

4. A lightweight rubber roller according to claim 3, characterized in that: The inner arc-shaped support plate (5) comprises: An arc-shaped connecting portion (5c), wherein the arc-shaped connecting portion (5c) connects adjacent U-shaped supporting portions (5a) and arc-shaped supporting portions (5b).

5. A lightweight rubber roller according to claim 4, characterized in that: The outer support plate (6) comprises: An outer arc-shaped connecting section (6a), wherein a plurality of the outer arc-shaped connecting sections (6a) are evenly distributed along the circumference and are respectively located outside a U-shaped supporting portion (5a) and span the U-shaped supporting portion (5a); An outer arc-shaped limiting portion (6b), adjacent outer arc-shaped connecting sections (6a) are connected via the outer arc-shaped limiting portion (6b), and the outer arc-shaped limiting portion (6b) protrudes toward the inner arc-shaped supporting plate (5) and is located inside the arc-shaped supporting portion (5b).

6. A lightweight rubber roller according to claim 5, characterized in that: The outer arc-shaped limiting portion (6b) and the arc-shaped supporting portion (5b) are fixedly connected via fasteners.

7. A lightweight rubber roller according to claim 6, characterized in that: The weight-reducing gap is formed between the arc-shaped support portion (5b) and the roller core body (1) and between the outer arc-shaped connecting section (6a) and the U-shaped support portion (5a).

8. A lightweight rubber roller according to claim 7, characterized in that: Also includes: Positioning ribs (7), a plurality of the positioning ribs (7) are evenly distributed on the inner side of the foamed polyurethane layer (2) along a circumference, and the positioning ribs (7) cooperate with the outer arc-shaped limiting portion (6b).

9. A lightweight rubber roller according to claim 8, characterized in that: Also includes: Positioning grooves (8), wherein a plurality of the positioning grooves (8) are evenly distributed on the outer wall of the roller core body (1) along a circumference, and the positioning grooves (8) cooperate with the bottom of the U-shaped support portion (5a) and limit the U-shaped support portion (5a).

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