Belt conveyor return roller set structure with quickly replaceable rollers

Abstract

The utility model provides a kind of quick replacement roller's belt conveyor return roller group structure, it includes: fixed bottom beam, it is made of long angle steel;Two root length direction series arrangement's roller bottom beam, each roller bottom beam is made of angle steel, its upper surface two ends are each fixedly connected with a roller bracket, and each roller bottom beam supports a roller using two roller brackets thereon;Two roller bottom beams are hinged by the hinge lug welded on the adjacent two roller brackets and are realized by hinge shaft, the two right-angled edges of one end of fixed bottom beam are vertically fixed with positioning column, and the two right-angled edges of the other end are interval and provided with two pieces of guide pressing piece, the guide pressing piece and the right-angled edge between fixed bottom beam form the guide gap that can be respectively supplied with the two right-angled edges of roller bottom beam, and the outer end of the two right-angled edges of one roller bottom beam is provided with the positioning socket corresponding with positioning column. The utility model is simple in structure, reasonable, and can guarantee the convenience, timeliness and security of maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of belt conveyor technology, and in particular relates to a belt conveyor return idler assembly structure with quick roller replacement. Background Technology

[0002] Belt conveyors, also known as belt conveyors, are widely used in bulk cargo ports, power plants, and other material yards. They mainly consist of a conveyor belt, a drive mechanism, load-bearing idler sets, and return idler sets. Two return idler sets form a return idler set, and return idler damage is a common problem. Since return idler sets are installed high off the ground and lack maintenance platforms, replacement typically requires an aerial work platform, and replacing a single roller can take at least two hours. Therefore, a structure needs to be designed that allows for quick and safe replacement of damaged return idler rollers, ensuring convenient, timely, and safe maintenance. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides the following technical solution:

[0004] A quick-change roller conveyor return idler assembly structure, comprising:

[0005] The fixed bottom beam is made of long angle steel.

[0006] Two idler base beams are connected in series along the length direction. Each idler base beam is made of angle steel, and an idler frame is fixed to each end of its upper surface. Each idler base beam supports a roller using the two idler frames on it. The two idler base beams are hinged together by hinge lugs welded on the two adjacent idler frames and passing through a hinge shaft.

[0007] A positioning post is vertically fixed to the two right-angled sides of one end of the fixed bottom beam, and two guide pressure plates are spaced apart on the two right-angled sides of the other end. The guide pressure plates and the right-angled sides of the fixed bottom beam form a guide gap that allows the two right-angled sides of the roller bottom beam to pass through respectively.

[0008] One of the roller bottom beams has positioning slots at the outer ends of the two right-angled sides, which correspond to the positioning posts. The opening direction of the positioning slots is parallel to the length direction of the right-angled sides.

[0009] Furthermore, the two right-angled sides of the opposite ends of the roller bottom beams are provided with supporting chamfers, so that when the two roller bottom beams rotate around the hinge axis, they can be mutually abutted and limited by the supporting chamfers.

[0010] Furthermore, fixing holes are respectively opened on the two right-angled sides of the fixed bottom beam, located between the two guide pressure plates, and fixing holes corresponding to the fixing holes of the fixed bottom beam are opened on the two right-angled sides of the other idler roller bottom beam.

[0011] Furthermore, the two ends of the fixed bottom beam are welded and fixed to the hanger respectively; the hanger is provided with mounting elongated holes and is fixed to the intermediate frame of the belt conveyor by bolts.

[0012] Furthermore, the hanger near the guide plate is provided with an avoidance opening, and the bottom beam of the hanger on the other side forms a blocking and protective barrier against the bottom beam of the idler roller.

[0013] Furthermore, wear-resistant plates are fixed to the bottom surfaces of the right-angled sides of the idler roller bottom beam.

[0014] This utility model has a simple and reasonable structure, which can quickly and safely replace damaged return idler rollers, ensuring the convenience, timeliness and safety of maintenance, ensuring that the belt conveyor can be restored to working condition in the shortest time, and guaranteeing the workload and efficiency. Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a front view schematic diagram of the present invention, in which the hanging brackets on both sides are omitted;

[0018] Figure 3 This is an exploded view of the present invention;

[0019] Figure 4 This is a schematic diagram of the changing states of this utility model.

[0020] The reference numerals in the figure are as follows: fixed bottom beam 1; idler bottom beams 21, 22; anti-wear plate 20; support chamfer 23; positioning socket 211; roller 3; idler frame 4; support groove 41; guide pressure plate 5; positioning column 6; fastening bolt group 7; hanger 8; mounting elongated hole 81; clearance opening 82; hinge lug 9; hinge shaft 91; fixing holes 19, 29. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] In the description of the embodiments of this utility model, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in when in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. It is only for the convenience of describing this utility model or simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In this invention, "multiple" refers to two or more (including two). The terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0024] Unless otherwise explicitly stated and limited, the terms “set up,” “install,” and “connect” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a direct connection or an indirect connection through an intermediate medium.

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] As shown in the figure, the return idler roller assembly structure of this utility model includes:

[0027] The fixed bottom beam 1 is made of long angle steel. Both ends of the fixed bottom beam 1 are welded and fixed to a hanger 8. The hanger 8 is also made of angle steel. The bottom of the hanger 8 has an installation elongated hole 81, which is fixed to the intermediate frame of the belt conveyor by bolts.

[0028] Each set of return idler rollers has two rollers 3. Each roller 3 is matched with an idler base beam (21, 22) made of angle steel. Idler frames 4 are welded and fixed at both ends of the upper surface of each idler base beam. Support grooves 41 are provided on the idler frame 4. The two ends of the roller shaft 31 of the roller 3 are inserted into the support grooves 41 of the corresponding idler frame 4, thereby supporting the corresponding roller 3.

[0029] Two idler roller bottom beams (21, 22) are connected in series along the length direction. The idler roller frame 4 at adjacent ends is welded and fixed with opposite hinged lugs 9. The two hinged lugs 9 are hinged together by a hinge shaft 91.

[0030] Furthermore, the two right-angled sides of the two roller bottom beams (21, 22) facing each other are respectively formed with support chamfers 23. When the two roller bottom beams are rotated around the hinge shaft 91, they can be stopped by the support chamfers 23 at the ends, so that one roller bottom beam can limit and support the other, making it convenient to replace the roller.

[0031] A positioning post 6 is vertically fixed to each of the two right-angled sides near one end of the roller. Two guide plates 5 are fixed at intervals on the two right-angled sides near the other end of the roller. Fixing holes 19 are also provided on the two right-angled sides between the two guide plates 5. A guide gap is formed between the guide plates 5 and the corresponding right-angled sides to allow the right-angled sides of the roller bottom beam to pass through.

[0032] Correspondingly, the outer ends of the two right-angled sides of one of the roller bottom beams 21 are respectively provided with positioning sockets 211 corresponding to the positioning posts 6, and the insertion direction of the positioning sockets 211 is parallel to the length extension direction of the right-angled sides.

[0033] On the two right-angled sides of the other idler roller bottom beam 22, there are fixing holes 29 that correspond one-to-one with the fixing holes 19 of the fixing bottom beam 1.

[0034] Preferred, such as Figure 3 As shown, the bottom beam of the hanger 8 near the guide plate 5 is provided with a clearance opening 82 for the insertion of the idler roller bottom beam, while the bottom beam of the hanger 8 on the other side forms a blocking and protective barrier for the idler roller bottom beam.

[0035] Furthermore, anti-wear plates 20 are fixedly attached to the bottom surfaces of the right-angled sides of the idler roller bottom beam.

[0036] Working principle:

[0037] During installation, with the positioning socket 211 facing forward, the two idler base beams are inserted sequentially through the clearance opening 82. The two idler base beams are supported by the fixed base beam 1 through the guide gap between the guide pressure plate 5 and the two right-angled sides of the fixed base beam 1. After the positioning pin 6 is inserted into the corresponding positioning socket 211, the joint cooperation between the positioning pin 6 and the positioning socket 211 and the perpendicular relationship between the positioning pin 6 and the right-angled side prevents the idler base beam 21 from moving vertically upward and horizontally outward. The other idler base beam is then secured by the fastening bolt group 7 passing through the fixing holes 19 and 29, thereby completely fixing the two idler base beams to the fixed base beam 1.

[0038] When replacement is needed, first loosen the fastening bolt group 7, then pull out one idler roller base beam 22, allowing the other idler roller base beam to be supported on the fixed base beam 1, as shown. Figure 4 As shown, the fixed bottom beam 1 and the guide plate 5 form a clamping support for the idler bottom beam 21, and the hinge shaft 91 and the support chamfer 23 form a support for the other idler bottom beam 22 that has been pulled out. It is possible to quickly replace one or two rollers without pulling both idler bottom beams out of the support range of the fixed bottom beam 1.

[0039] Furthermore, this structure allows for the installation or replacement of both rollers to be completed on only one side where the clearance 82 is located, eliminating the need for separate operations on both sides, thus saving time and improving work efficiency.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A return idler assembly structure for a belt conveyor with quickly replaceable rollers, characterized in that: include: Fixed bottom beam (1), which is made of long angle steel; Two idler base beams (21, 22) are connected in series along the length direction. Each idler base beam is made of angle steel, and an idler frame (4) is fixed to each end of its upper surface. Each idler base beam supports a roller (3) by the two idler frames (4) on it. The two idler base beams are hinged to each other by hinge lugs (9) welded on the two adjacent idler frames (4) and passing through the hinge shaft (91). A positioning column (6) is vertically fixed on the two right-angled sides of one end of the fixed bottom beam (1), and two guide pressure plates (5) are spaced apart on the two right-angled sides of the other end. The guide pressure plates (5) and the right-angled sides of the fixed bottom beam (1) form a guide gap that allows the two right-angled sides of the roller bottom beam to pass through respectively. One of the roller bottom beams (21) has a positioning socket (211) at the outer end of the two right-angled sides corresponding to the positioning post (6), and the opening direction of the positioning socket (211) is parallel to the length direction of the right-angled side.

2. The belt conveyor return idler assembly structure with quick-change rollers as described in claim 1, characterized in that: The two right-angled sides of the opposite ends of the roller bottom beams (21, 22) are provided with support chamfers (23). When the two roller bottom beams rotate around the hinge shaft (91), they can be mutually abutted and limited by the support chamfers (23).

3. The return idler assembly structure of the belt conveyor with quick-change rollers according to claim 1, characterized in that: Fixing holes are provided on the two right-angled sides of the fixed bottom beam (1) and located between the two guide plates (5). Fixing holes are provided on the two right-angled sides of the other idler roller bottom beam (22) and correspond one-to-one with the fixing holes of the fixed bottom beam (1).

4. The return idler assembly structure of the belt conveyor with quick-change rollers according to claim 1, characterized in that: The two ends of the fixed bottom beam (1) are welded and fixed to the hanger (8); the hanger is provided with an installation elongated hole (81) and is fixed to the intermediate frame of the belt conveyor by bolts.

5. The belt conveyor return idler assembly structure with quick-change rollers according to claim 4, characterized in that: The hanger (8) near the guide plate (5) is provided with a clearance opening (82), and the bottom beam of the other hanger (8) forms a blocking protection against the bottom beam of the idler roller.

6. The return idler assembly structure of the belt conveyor with quick-change rollers according to claim 1, characterized in that: Abrasion-resistant plates (20) are fixed to the bottom surfaces of the right-angled sides of the idler roller bottom beams (21, 22).

Images