Height-adjustable carrier roller set

Abstract

The utility model relates to the technical field of height adjustment of carrier roller sets, and particularly discloses a height-adjustable carrier roller set which comprises a mounting plate, a middle carrier roller is arranged in the middle of the top face of the mounting plate through a middle support, side supports are arranged on the left side and the right side of the top face of the mounting plate respectively, side carrier rollers are arranged between the side supports and the middle support, and the mounting plate is arranged on a lifting mechanism. The lifting mechanism comprises two lifting assemblies. The two lifting assemblies are arranged on the left and right sides of the mounting plate correspondingly. The lifting assembly comprises a fixed frame; a linear translation unit is arranged on the fixed frame; the side wall of the mounting plate is slidably arranged on the fixed frame; the linear translation unit is connected with the mounting plate. Compared with the prior art, the lifting assemblies are arranged on the left side and the right side of the mounting plate, rising of the basic height of the height-adjustable carrier roller set is avoided, grooving below the height-adjustable carrier roller set is avoided, the application range is widened, and popularization is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of height adjustment of roller groups, and particularly discloses a height-adjustable roller group. Background Art

[0002] A belt conveyor is a mechanical device that uses a belt to transport materials for loading and unloading. It is primarily used for the handling and transportation of goods and boasts the advantages of high efficiency, safety, reliability, and low cost, making it widely used in major ports. The belt conveyor uses the driving force generated by an electric motor as its energy source. The friction between the drive roller in the transmission device and the conveyor belt in the conveyor mechanism drives the material, achieving continuous and stable material transportation.

[0003] According to the design and operation requirements of belt conveyors, flat belts are gradually transformed into trough-type conveyors. In the transition section, a gap is easily formed between the belt and the load-bearing roller group, that is, the belt suspension phenomenon, which may cause a series of problems such as belt deviation, increased wear, and even reduced conveying efficiency.

[0004] To address these issues, the height of the roller assembly needs to be adjusted. For example, Patent Publication No. CN217147479U discloses a durable roller frame with a complex lifting mechanism installed below the base to achieve height adjustment of the roller assembly. Patent Publication No. CN218595261U discloses a roller assembly for a mining machinery conveyor, which also has a complex lifting mechanism installed below the roller assembly to achieve height adjustment of the roller assembly.

[0005] In the prior art, a lifting mechanism is provided under the roller group, which results in an increase in the base height for the roller group installation or a groove being opened under the roller group. In addition, the lifting mechanism is complicated and costly to set up, resulting in a small scope of application and being unfavorable for promotion. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the present invention provides a height-adjustable roller group to solve the problem that the lifting mechanism is arranged below the roller group and has a small applicable range.

[0007] In order to achieve the above purpose, the technical solution of the utility model is:

[0008] A height-adjustable roller assembly includes a mounting plate, a middle roller disposed in the middle of the top surface of the mounting plate via a middle bracket, side brackets disposed on both left and right sides of the top surface of the mounting plate, and side rollers disposed between the side brackets and the middle bracket. The mounting plate is mounted on a lifting mechanism, which includes two lifting assemblies, one on each side of the mounting plate. The lifting assemblies include a fixed frame, a linear translation unit disposed on the fixed frame, and the linear translation unit connected to the mounting plate. The placement of the lifting assemblies on both sides of the mounting plate avoids raising the base height of the height-adjustable roller assembly and eliminates the need for slotting below, thereby increasing its applicability and facilitating its widespread adoption.

[0009] Preferably, the fixed frame includes a bottom plate and a top plate; two vertical plates are arranged between the bottom plate and the top plate; and the linear translation unit is arranged between the bottom plate and the top plate, thereby ensuring the structural stability of the fixed frame.

[0010] Preferably, the linear translation unit includes a screw; the upper end of the screw is fixedly mounted on the top plate, and the lower end of the screw is mounted on the bottom plate. Slots are provided at both the left and right ends of the top surface of the mounting plate. The screw is positioned within the slots and secured to the mounting plate via two nuts. Adjusting the two nuts adjusts the position of the mounting plate on the screw, thereby adjusting the height of the mounting plate. This structure is simple and low in cost.

[0011] Preferably, a back plate is provided between the bottom plate and the top plate; the left and right sides of the back plate are fixedly connected to the vertical plates; the back plate has a concave cross-section; and the screw is provided inside the back plate. The back plate can protect the screw and extend its service life.

[0012] Preferably, connecting plates are fixedly provided on the front and rear side walls at both ends of the mounting plate; a long hole is provided on the vertical plate; and the connecting plate is provided at one end of the long hole away from the mounting plate.

[0013] Preferably, the connecting plate is configured as an angle iron; one end of the connecting plate is fixed to the mounting plate by bolt 1; a second bolt is provided at the other end of the connecting plate; the second bolt passes through the first long hole and is fixed by a nut.

[0014] The beneficial effects of the utility model are:

[0015] 1. The lifting components are arranged on the left and right sides of the mounting plate, which avoids the increase of the base height of the height-adjustable roller group and the grooving at the bottom, increases the scope of application and is conducive to promotion.

[0016] 2. The reasonable setting of the lifting assembly can adjust the position of the mounting plate on the screw by adjusting the two nuts, so as to adjust the height of the mounting plate. The structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention after removing the middle roller, side rollers and connecting plate;

[0020] Figure 3 This is a schematic structural diagram of the mounting plate, middle bracket and side bracket of the present invention;

[0021] Figure 4 This is a schematic structural diagram of the fixing frame, screw and nut of the utility model;

[0022] Figure 5 This is a structural diagram of the connecting plate of the present invention.

[0023] Description of reference numerals:

[0024] 1-Mounting plate, 2-Middle bracket, 3-Middle roller, 4-Side bracket, 5-Side roller, 6-Fixed frame, 7-Screw, 8-Nut, 9-Connecting plate, 10-Bolt 1, 11-Bolt 2;

[0025] 101-slot, 102-long hole 2; 601-bottom plate, 602-top plate, 603-vertical plate, 604-long hole 1, 605-back plate. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0027] like Figure 1-5As shown, a height-adjustable roller group includes a mounting plate 1, the mounting plate 1 is a channel steel, a middle roller 3 is provided in the middle of the top surface of the mounting plate 1 through a middle bracket 2, side brackets 4 are provided on both the left and right sides of the top surface of the mounting plate 1, and side rollers 5 are provided between the side brackets 4 and the middle bracket 2. The mounting plate 1 is set on a lifting mechanism, and the lifting mechanism includes two sets of lifting components; the two sets of lifting components are respectively provided on the left and right sides of the mounting plate 1;

[0028] In the above arrangement, the lifting assembly includes a fixed frame 6; the fixed frame 6 includes a bottom plate 601 and a top plate 602, and two vertical plates 603 are provided between the bottom plate 601 and the top plate 602 to ensure structural stability; a long hole 604 is provided on the vertical plate 603; the connecting plate 9 is configured as an angle iron; one end of the connecting plate 9 is fixed to the front and rear side walls of the left and right ends of the mounting plate 1 by a bolt 10; the front and rear side walls of the left and right ends of the mounting plate 1 are both provided with a long hole 102, and two bolts 10 are provided on the connecting plate 9, which are passed through the long hole 102 and then fixed with nuts; the connecting plate 9 The other end is provided with a second bolt 11, which passes through the first elongated hole 604 and is secured with a nut, ensuring the stable lifting and lowering of the mounting plate 1. A linear translation unit is provided between the bottom plate 601 and the top plate 602. The linear translation unit includes a screw rod 7. The upper end of the screw rod 7 is fixed to the top plate 602, and the lower end of the screw rod 7 is provided on the bottom plate 601. Slots 101 are provided on both the left and right ends of the top surface of the mounting plate 1. The screw rod 7 is installed in the slot 101, and two nuts 8 are provided in the middle of the screw rod 7. The two nuts 8 are respectively provided on the upper and lower sides of the mounting plate 1 to fix the position of the mounting plate 1 on the screw rod 7. By adjusting the two nuts 8, the position of the mounting plate 1 on the screw rod 7 is adjusted, and the height of the mounting plate 1 can be adjusted. The structure is simple and the cost is low.

[0029] In order to increase the protection of the screw 7 and extend the service life of the screw 7, a back plate 605 is further provided between the bottom plate 601 and the top plate 602; the left and right sides of the back plate 605 are fixedly connected to the vertical plates 603; the cross section of the back plate 605 is concave-shaped; the screw 7 is arranged on the inner side of the back plate 605.

[0030] When the height needs to be adjusted, loosen the second bolt 11, adjust the position of the two nuts 8 on the screw 7, adjust the height of the mounting plate 1, and after the middle roller 3 can support the belt, tighten the nut 8 and the second bolt 11 to fix the mounting plate 1. Using this height-adjustable roller set avoids raising the base height and avoiding slotting at the bottom, expands the scope of application, and is conducive to promotion.

[0031] Although the present invention has been described in detail with reference to the accompanying drawings and in conjunction with preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, persons of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and such modifications or substitutions shall be within the scope of the present invention. Any changes or substitutions that can be easily conceived by persons skilled in the art within the technical scope disclosed in the present invention shall be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A height-adjustable roller assembly, comprising a mounting plate (1), a middle roller (3) being provided in the middle of the top surface of the mounting plate (1) through a middle bracket (2), side brackets (4) being provided on both left and right sides of the top surface of the mounting plate (1), side rollers (5) being provided between the side brackets (4) and the middle bracket (2), the mounting plate (1) being provided on a lifting mechanism, and characterized in that: The lifting mechanism comprises two groups of lifting components; the two groups of lifting components are respectively arranged on the left and right sides of the mounting plate (1); the lifting components comprise a fixed frame (6); a linear translation unit is arranged on the fixed frame (6); and the linear translation unit is connected to the mounting plate (1).

2. The height-adjustable roller assembly according to claim 1, characterized in that: The fixed frame (6) comprises a bottom plate (601) and a top plate (602); two vertical plates (603) are arranged between the bottom plate (601) and the top plate (602); and a linear translation unit is arranged between the bottom plate (601) and the top plate (602).

3. The height-adjustable roller assembly according to claim 2, characterized in that: The linear translation unit includes a screw rod (7); the upper end of the screw rod (7) is fixedly arranged on the top plate (602), and the lower end of the screw rod (7) is arranged on the bottom plate (601); slots (101) are arranged at both left and right ends of the top surface of the mounting plate (1); the screw rod (7) is arranged in the slot (101) and fixed to the mounting plate (1) by two nuts (8).

4. The height-adjustable roller assembly according to claim 3, characterized in that: A back plate (605) is further provided between the bottom plate (601) and the top plate (602); the left and right sides of the back plate (605) are fixedly connected to the vertical plates (603); the cross section of the back plate (605) is concave; and the screw (7) is provided inside the back plate (605).

5. The height-adjustable roller assembly according to claim 2, characterized in that: Connecting plates (9) are fixedly provided on the front and rear side walls at both ends of the mounting plate (1); a long hole (604) is provided on the vertical plate (603); and the connecting plate (9) is provided at the long hole (604) at one end away from the mounting plate (1).

6. The height-adjustable roller assembly according to claim 5, characterized in that: The connecting plate (9) is configured as an angle iron; one end of the connecting plate (9) is fixed to the mounting plate (1) via a first bolt (10); a second bolt (11) is provided at the other end of the connecting plate (9); the second bolt (11) is passed through the first long hole (604) and then fixed using a nut.

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