Low-resistance rotating belt carrier roller structure

Abstract

The utility model relates to the technical field of carrier roller structures, and provides a low-resistance rotating belt carrier roller structure which comprises a lower cross beam, a base, an upper cross beam, a supporting shaft, a lower bearing and an upper bearing. The upper cross beam is lapped above the base; the lower end of the supporting shaft is inserted into the base, and the upper end of the supporting shaft is connected with the upper cross beam; the lower bearing is arranged between the inner wall of the lower end of the base and the supporting shaft, and the lower bearing and the supporting shaft are coaxially arranged. The upper bearing is arranged between the inner wall of the upper end of the base and the supporting shaft, the upper bearing and the supporting shaft are coaxially arranged, and the supporting shaft is rotationally connected with the base through the lower bearing and the upper bearing. According to the technical scheme, the problems that in the prior art, lubricating oil is used for reducing the friction force between the supporting shaft and the base, the oil amount and quality of the lubricating oil need to be checked regularly, and the maintenance cost is high are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a roller structure technical field, specifically, relate to a low resistance rotating belt roller structure. BACKGROUND

[0002] The belt roller is an important part of the belt conveyor, and the conveying belt will sag due to its own weight and the weight of the transported material during operation. The roller structure can lift the conveying belt to maintain a certain shape and position, thereby ensuring the smooth operation of the conveying belt. The upper cross beam of the roller structure is rotatably connected to the base on the lower cross beam through a support shaft. Currently, a lubricating cavity is provided on the inner wall of the base, and lubricating oil is injected into the lubricating cavity to reduce the friction between the support shaft and the base. The oil quantity and quality of the lubricating oil need to be checked regularly, and the maintenance cost is high. SUMMARY

[0003] The utility model provides a low resistance rotating belt roller structure, solves the problem of using lubricating oil to reduce the friction between the support shaft and the base in the related art, the need of regular inspection of the oil quantity and quality of the lubricating oil, and the high maintenance cost.

[0004] The technical scheme of the utility model is as follows: a low resistance rotating belt roller structure, the key is that it comprises,

[0005] a lower cross beam,

[0006] a base, which is arranged on the lower cross beam;

[0007] an upper cross beam, which is arranged above the base;

[0008] a support shaft, the lower end of which is inserted into the base, and the upper end of which is connected to the upper cross beam;

[0009] a lower bearing, which is arranged between the inner wall of the lower end of the base and the support shaft, and is coaxially arranged with the support shaft;

[0010] an upper bearing, which is arranged between the inner wall of the upper end of the base and the support shaft, and is coaxially arranged with the support shaft, and the support shaft is rotatably connected to the base by means of the lower bearing and the upper bearing.

[0011] The inner wall of the base has a lower accommodating groove, and the lower bearing is arranged in the lower accommodating groove.

[0012] The inner wall of the base has an upper accommodating groove, and the upper bearing is arranged in the upper accommodating groove.

[0013] The inner diameter of the part between the lower bearing and the upper bearing is greater than the diameter of the supporting shaft and less than the diameters of the lower accommodating groove and the upper accommodating groove, and further comprises a wear-resistant sleeve arranged on the periphery of the supporting shaft and clamped between the lower bearing and the upper bearing.

[0014] Further comprising a locking bolt, the shank of which is screwed with the wear-resistant sleeve after passing through the sidewall of the base.

[0015] The lower end surface of the lower accommodating groove is flush with the lower end surface of the base, and the depth of the lower accommodating groove is greater than the thickness of the lower bearing, further comprising,

[0016] A stop ring arranged on the periphery of the lower end of the supporting shaft and located in the lower accommodating groove.

[0017] A gasket sleeved on the periphery of the supporting shaft and clamped between the stop ring and the lower bearing.

[0018] Further comprising a sealing cover located below the lower accommodating groove, the upper end surface of the sealing cover being in contact with the base, and the sealing cover being detachably connected with the base.

[0019] The upper end surface of the upper accommodating groove is flush with the upper end surface of the base, and the depth of the upper accommodating groove is greater than the thickness of the upper bearing, further comprising a baffle arranged on the periphery of the upper end of the supporting shaft and clamped between the upper cross beam and the upper bearing.

[0020] The upper end surface of the base has an annular limiting groove, the lower end surface of the upper cross beam has an inner convex ring and an outer convex ring, the inner convex ring is inserted into the limiting groove, and the outer convex ring is sleeved on the periphery of the base.

[0021] Further comprising a carrier roller erected above the upper cross beam, the carrier roller being detachably connected with the upper cross beam.

[0022] The utility model discloses a working principle and beneficial effect for: base sets up on the lower crossbeam, upper crossbeam is placed on the top of base, the lower end of support shaft is inserted in the inside of base, and the upper end of support shaft is connected with upper crossbeam, lower bearing is arranged between the inner wall of base lower extreme and support shaft, and is arranged with support shaft coaxially, upper bearing is arranged between the inner wall of base upper extreme and support shaft, and is arranged with support shaft coaxially, and support shaft is rotatably connected with base with the help of lower bearing and upper bearing. When upper crossbeam and support shaft rotate relative to base, the inner ring of lower bearing and upper bearing is closely matched with support shaft, and rotates together with support shaft, and the outer ring of bearing is fixed with the inner wall of base, and the rolling element (such as ball or roller) rolls between the inner ring and outer ring, and the relative rotation between support shaft and base is realized through the mode of rolling friction, the resistance that support shaft receives in the process of rotation is smaller, and the service life of bearing is relatively longer under normal use, and it does not need to maintain as frequently as lubricating oil, and maintenance cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above-mentioned characteristics, technical features, advantages and implementation modes of the utility model will be further explained in the following in a clear and understandable manner in combination with the preferred embodiments and the drawings.

[0024] Figure 1 It is the connection structure diagram of support shaft and base in the utility model.

[0025] Figure 2 It is the structure diagram of the utility model.

[0026] In the drawing: 1, lower crossbeam, 2, base, 3, upper crossbeam, 4, support shaft, 5, lower bearing, 6, upper bearing, 7, lower accommodating groove, 8, upper accommodating groove, 9, wear-resistant sleeve, 10, locking bolt, 11, baffle, 12, washer, 13, sealing cover, 14, baffle, 15, inner convex ring, 16, outer convex ring, 17, carrier roller. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the specific implementation mode of the utility model will be explained in the following in combination with the drawings. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without paying creative labor, and other implementation modes can be obtained.

[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Example, refer to Figures 1-2 This invention provides a low-resistance rotating belt roller structure, comprising a lower crossbeam 1, a base 2, an upper crossbeam 3, a support shaft 4, a lower bearing 5, and an upper bearing 6. The base 2 is mounted on the lower crossbeam 1; the upper crossbeam 3 rests on top of the base 2; the lower end of the support shaft 4 is inserted into the base 2, and the upper end of the support shaft 4 is connected to the upper crossbeam 3; the lower bearing 5 is located between the inner wall of the lower end of the base 2 and the support shaft 4, and is coaxial with the support shaft 4; the upper bearing 6 is located between the inner wall of the upper end of the base 2 and the support shaft 4, and is coaxial with the support shaft 4. The support shaft 4 is rotatably connected to the base 2 via the lower bearing 5 and the upper bearing 6.

[0032] In this embodiment, when the upper crossbeam 3 and the support shaft 4 rotate relative to the base 2, the inner rings of the lower bearing 5 and the upper bearing 6 are tightly fitted with the support shaft 4 and rotate together with the support shaft 4, while the outer ring of the bearing is fixed to the inner wall of the base 2. The rolling elements roll between the inner and outer rings, and the relative rotation between the support shaft 4 and the base 2 is achieved through rolling friction. The resistance encountered by the support shaft 4 during rotation is small, and its service life under normal use is relatively long. It does not require frequent maintenance like lubricating oil, which can reduce maintenance costs.

[0033] In this embodiment, the lower bearing 3 is preferably a tapered roller bearing, and the upper bearing 4 is preferably a thrust ball bearing. The tapered roller bearing can effectively withstand the radial force transmitted from the support shaft 4, and can also withstand a certain axial force, ensuring the stability of the support shaft 4 in the vertical direction. The thrust ball bearing is mainly used to withstand the axial force of the support shaft 4. The combination of the tapered roller bearing and the thrust ball bearing can enhance the axial stability of the entire structure.

[0034] Furthermore, such as Figure 1 As shown, the inner wall of the base 2 has a lower receiving groove 7, and the lower bearing 5 is disposed in the lower receiving groove 7. The lower receiving groove 7 can limit the lower bearing 5, ensuring that the lower bearing 5 is more stable and reliable during use.

[0035] Furthermore, such as Figure 1 As shown, the inner wall of the base 2 has an upper receiving groove 8, and the upper bearing 6 is disposed in the upper receiving groove 8. The upper receiving groove 8 can limit the upper bearing 6, ensuring that the upper bearing 6 is more stable and reliable during use.

[0036] Furthermore, such as Figure 1 As shown, the inner diameter of the portion of the base 2 located between the lower bearing 5 and the upper bearing 6 is larger than the diameter of the support shaft 4, but smaller than the diameters of the lower receiving groove 7 and the upper receiving groove 8. It also includes a wear-resistant sleeve 9, which is disposed around the support shaft 4 and clamped between the lower bearing 5 and the upper bearing 6. The wear-resistant sleeve 9 provides support for the support shaft 4 while preventing the support shaft 4 from directly contacting the base, thus avoiding excessive wear of the base 2.

[0037] Furthermore, such as Figure 1 As shown, it also includes a locking bolt 10, the thread of which passes through the side wall of the base 2 and is threadedly connected to the wear-resistant sleeve 9. By using the locking bolt 10 to fix the wear-resistant sleeve 9 to the base 2, it can be ensured that it will not shift during operation, thereby better ensuring the stability of the entire structure.

[0038] Furthermore, such as Figure 1 As shown, the lower end face of the lower receiving groove 7 is flush with the lower end face of the base 2. The depth of the lower receiving groove 7 is greater than the thickness of the lower bearing 5. It also includes a retaining ring 11 and a washer 12. The retaining ring 11 is located on the outer periphery of the lower end of the support shaft 4 and is located inside the lower receiving groove 7. The washer 12 is fitted around the support shaft 4 and clamped between the retaining ring 11 and the lower bearing 5. The lower bearing 5 and the washer 12 are clamped between the upper end face of the lower receiving groove 7 and the retaining ring 11, which can limit and protect the lower bearing 5 and ensure the stability of the lower bearing 5 during operation.

[0039] Furthermore, such as Figure 1As shown, it also includes a sealing cover 13, which is located below the lower receiving groove 7. The upper end face of the sealing cover 13 contacts the base 2, and the sealing cover 13 and the base 2 are detachably connected. The sealing cover 13 can prevent dust, debris, etc. from entering the lower receiving groove 7, protecting the lower bearing 5 and the support shaft 4. At the same time, the detachable connection facilitates the maintenance and replacement of the lower bearing 5.

[0040] Furthermore, such as Figure 1 As shown, the upper end face of the upper receiving groove 8 is flush with the upper end face of the base 2. The depth of the upper receiving groove 8 is greater than the thickness of the upper bearing 6. It also includes a baffle 14, which is disposed on the outer periphery of the upper end of the support shaft 4 and clamped between the upper crossbeam 3 and the upper bearing 6. The upper bearing 6 is clamped between the baffle 14 and the bottom surface of the upper receiving groove 8, which can limit and protect the upper bearing 6, ensuring the stability of the upper bearing 6 during operation.

[0041] Furthermore, such as Figure 1 As shown, the upper end face of the base 2 has an annular limiting groove, and the lower end face of the upper crossbeam 3 has an inner convex ring 15 and an outer convex ring 16. The inner convex ring 15 is inserted into the limiting groove, and the outer convex ring 16 is fitted around the base 2. The inner convex ring 15 and the outer convex ring 16 can limit the upper crossbeam 3, prevent the upper crossbeam 3 from shifting in the horizontal direction, and better ensure the stability of the entire structure during operation.

[0042] Furthermore, such as Figure 2 As shown, it also includes a support roller 17, which is mounted above the upper crossbeam 3 and is detachably connected to the upper crossbeam 3. This detachable connection facilitates the installation and replacement of the support roller 17, improving the overall maintenance convenience of the structure. Figure 2 As shown, the left and right side rollers 17 are inclined, and the inner ends are inclined downward. The two side rollers 17 are connected by a V-shaped piece with the opening facing downward. The V-shaped piece is connected to the upper crossbeam 3, which is convenient for disassembly and assembly.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A low-resistance rotating belt roller structure, characterized in that: include, Lower crossbeam (1) Base (2), said base (2) is disposed on the lower crossbeam (1); The upper crossbeam (3) rests on the base (2); Support shaft (4), the lower end of which is inserted into the base (2), and the upper end of which is connected to the upper crossbeam (3); The lower bearing (5) is disposed between the inner wall of the lower end of the base (2) and the support shaft (4), and is coaxial with the support shaft (4); Upper bearing (6) is disposed between the inner wall of the upper end of the base (2) and the support shaft (4), and is coaxial with the support shaft (4). The support shaft (4) is rotatably connected to the base (2) by means of the lower bearing (5) and the upper bearing (6). The base (2) has a lower receiving groove (7) on its inner wall, and the lower bearing (5) is disposed in the lower receiving groove (7); The base (2) has an upper receiving groove (8) on its inner wall, and the upper bearing (6) is disposed in the upper receiving groove (8); The inner diameter of the base (2) located between the lower bearing (5) and the upper bearing (6) is greater than the diameter of the support shaft (4) and smaller than the diameters of the lower receiving groove (7) and the upper receiving groove (8). It also includes a wear-resistant sleeve (9), which is disposed around the support shaft (4) and clamped between the lower bearing (5) and the upper bearing (6). It also includes a locking bolt (10), the screw of which passes through the side wall of the base (2) and is threaded to the wear-resistant sleeve (9).

2. The low-resistance rotating belt roller structure according to claim 1, characterized in that: The lower end face of the lower receiving groove (7) is flush with the lower end face of the base (2), and the depth of the lower receiving groove (7) is greater than the thickness of the lower bearing (5). It also includes... A retaining ring (11) is disposed on the periphery of the lower end of the support shaft (4) and located in the lower receiving groove (7); Washer (12) is fitted around the support shaft (4) and clamped between the retaining ring (11) and the lower bearing (5).

3. The low-resistance rotating belt roller structure according to claim 2, characterized in that: It also includes a sealing cap (13), which is located below the lower receiving groove (7). The upper end face of the sealing cap (13) contacts the base (2), and the sealing cap (13) and the base (2) are detachably connected.

4. The low-resistance rotating belt roller structure according to claim 1, characterized in that: The upper end face of the upper receiving groove (8) is flush with the upper end face of the base (2). The depth of the upper receiving groove (8) is greater than the thickness of the upper bearing (6). It also includes a baffle (14). The baffle (14) is disposed on the periphery of the upper end of the support shaft (4) and is clamped between the upper crossbeam (3) and the upper bearing (6).

5. The low-resistance rotating belt roller structure according to claim 4, characterized in that: The upper end face of the base (2) has an annular limiting groove, and the lower end face of the upper crossbeam (3) has an inner convex ring (15) and an outer convex ring (16). The inner convex ring (15) is inserted into the limiting groove, and the outer convex ring (16) is fitted around the base (2).

6. The low-resistance rotating belt roller structure according to claim 1, characterized in that: It also includes a roller (17) which is mounted above the upper crossbeam (3) and is detachably connected to the upper crossbeam (3).

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